Patent US5754158A successfully refreshed from Google Patents.
US5754158A
Expired / Lapsed
US
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Liquid crystal device
Assignee: Seiko Epson Corp
•
Filing: 1997-06-17
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Granted: 1998-05-19
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Expires: 2017-06-17
Abstract
Abstract An active matrix panel including a matrix of driving electrodes couples through thin film transistor switches to a corresponding source line and gate line and at least one of a driver circuit including complementary thin film transistors for driving the source and/or gate lines of the picture elements on the substrate. The thin film transistors of the active matrix have the same cross-sectional structure as the P-type or the N-type thin film transistors forming the driver circuit and are formed during the same patterning process.
Inventors
- 👤 Toshiyuki Misawa
- 👤 Hiroyuki Oshima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:23
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/80; H10D84/82; H10D84/83; H10D84/85; H10D84/859; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345; G02F1/13454; G09; G09G; G09G3/00; G09G3/001; G09G3/002; G09G3/003; G09G3/20; G09G3/34; G09G3/36; G09G3/3611; G09G3/3648; G09G3/3674; G09G3/3677; G09G3/3685; G09G3/3688; H10D84/01; H10D84/0123; H10D84/0126; H10D84/0165; H10D84/0191; H10D86/00; H10D86/40; H10D86/441; H10D86/60; H10W; H10W20/00; H10W20/40; G02F1/133345; G02F1/136; G02F1/1362; G02F1/136213; G02F1/136254; G09G2300/00; G09G2300/04; G09G2300/0404; G09G2300/0408; G09G2300/08; G09G2300/0809; G09G2330/00; G09G2330/12; G09G3/006; G09G3/2007; G09G3/2011; G09G3/3659; H10D30/00; H10D30/60; H10D30/67; H10D30/6704; H10D30/6713; H10W72/00; H10W72/01; H10W72/015; H10W72/01515; H10W72/071; H10W72/075; Y; Y10; Y10S; Y10S257/00; Y10S257/923; Y10S345/00; Y10S345/904
Claims Analysis
Total Claims: 60
Claim 1
Independent Claim
135 words
A liquid crystal device comprising: a pair of opposed and spaced apart substrates; a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; a plurality of picture elements arranged on one of the substrates and connected to said source lines and said gate lines; a gate line driver circuit connected to said gate lines; and a gate line driver test circuit comprising transistors, said transistors being coupled to a test signal input terminal, test signal output terminal and said gate lines, wherein test check signals are output to said test signal output terminal through said transistors in accordance with application of test signals to the test signal input terminal and operation of the gate line driver circuit.
Claim 2
Dependent Claim
135 words
A liquid crystal device comprising: a pair of opposed and spaced apart substrates; a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; a plurality of picture elements arranged on one of the substrates and connected to said source lines and said gate lines; a gate line driver circuit connected to said gate lines; and a gate line driver test circuit comprising transistors, said transistors being coupled to a test signal input terminal, test signal output terminal and said gate lines, wherein test check signals are output to said test signal output terminal through said transistors in accordance with application of test signals to the test signal input terminal and operation of the gate line driver circuit.
Claim 3
Dependent Claim
14 words
The liquid crystal device of claim 1, wherein said transistors comprises thin film transistors.
Claim 4
Dependent Claim
137 words
A liquid crystal device comprising: a pair of opposed and spaced apart substrates; a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; a plurality of picture elements arranged on one of the substrates and connected to said source lines and said gate lines; a source line driver circuit connected to said source lines; and a source line driver test circuit comprising transistors, said transistors being coupled to a test signal input terminal, a test signal output terminal and said source lines, wherein test check signals are output to said test signal output terminal through said transistors in accordance with application of test signals to the test signal input terminal and the operation of the source line driver circuit.
Claim 5
Dependent Claim
137 words
A liquid crystal device comprising: a pair of opposed and spaced apart substrates; a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; a plurality of picture elements arranged on one of the substrates and connected to said source lines and said gate lines; a source line driver circuit connected to said source lines; and a source line driver test circuit comprising transistors, said transistors being coupled to a test signal input terminal, a test signal output terminal and said source lines, wherein test check signals are output to said test signal output terminal through said transistors in accordance with application of test signals to the test signal input terminal and the operation of the source line driver circuit.
Claim 6
Dependent Claim
14 words
The liquid crystal device of claim 3, wherein said transistors comprise thin film transistors.
Claim 7
Dependent Claim
219 words
A liquid crystal device comprising: a pair of opposed and spaced apart insulating substrates; a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; a plurality of picture elements arranged on the one of the substrates and connected to said source lines and said gate lines; a source line driver circuit connected to said source lines; a gate line driver circuit connected to said gate lines; a source line driver test circuit comprising first transistors, said first transistors being coupled to a first test signal output terminal, a first test signal input terminal and said source lines; and a gate line driver test circuit comprising second transistors, said second transistors being coupled to a second test signal input terminal, a second test signal output terminal and said gate lines, wherein first test signals applied to the first test signal input terminal are output to said first test signal output terminal through said first transistors in accordance with the operation of the source line driver circuit, and second test signals applied to the second test signal input terminals are output to said second test signal output terminal through said second transistors in accordance with the operation of the gate line driver circuit.
Claim 8
Dependent Claim
219 words
A liquid crystal device comprising: a pair of opposed and spaced apart insulating substrates; a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; a plurality of picture elements arranged on the one of the substrates and connected to said source lines and said gate lines; a source line driver circuit connected to said source lines; a gate line driver circuit connected to said gate lines; a source line driver test circuit comprising first transistors, said first transistors being coupled to a first test signal output terminal, a first test signal input terminal and said source lines; and a gate line driver test circuit comprising second transistors, said second transistors being coupled to a second test signal input terminal, a second test signal output terminal and said gate lines, wherein first test signals applied to the first test signal input terminal are output to said first test signal output terminal through said first transistors in accordance with the operation of the source line driver circuit, and second test signals applied to the second test signal input terminals are output to said second test signal output terminal through said second transistors in accordance with the operation of the gate line driver circuit.
Claim 9
Dependent Claim
19 words
The liquid crystal device of claim 5, wherein said first transistors and said second transistors comprise thin film transistors.
Claim 10
Dependent Claim
112 words
A liquid crystal device comprising: a plurality of first lines and a plurality of second lines arranged in a matrix; output terminals of driver circuits connected to said plurality of first lines and said plurality of second lines; and at least one driver test circuit comprising transistors, said transistors of said at least one driver test circuit being coupled to a test signal input terminal, a test signal output terminal andone of said first and second lines, wherein test check signals are output to said test signal output terminal through said transistors in accordance with application of test signals to the test signal input terminal and the operation of said driver circuit.
Claim 11
Dependent Claim
112 words
A liquid crystal device comprising: a plurality of first lines and a plurality of second lines arranged in a matrix; output terminals of driver circuits connected to said plurality of first lines and said plurality of second lines; and at least one driver test circuit comprising transistors, said transistors of said at least one driver test circuit being coupled to a test signal input terminal, a test signal output terminal andone of said first and second lines, wherein test check signals are output to said test signal output terminal through said transistors in accordance with application of test signals to the test signal input terminal and the operation of said driver circuit.
Claim 12
Independent Claim
128 words
A method for driving a gate line driver test circuit of a liquid crystal device, the liquid crystal device including a plurality of gate lines and a plurality of source lines disposed on one of a pair of substrates, a plurality of picture elements connected to the plurality of gate lines and the plurality of source lines, a gate line driver circuit connected to the gate lines, and a gate line driver test circuit comprising transistors, the transistors being connected to the gate lines, a test signal input terminal and a test signal output terminal, the method comprising: applying test signals to the test signal input terminal when the gate line driver circuit is operated; and testing whether predetermined signals are applied to the test signal output terminal.
Claim 13
Independent Claim
128 words
A method for driving a gate line driver test circuit of a liquid crystal device, the liquid crystal device including a plurality of gate lines and a plurality of source lines disposed on one of a pair of substrates, a plurality of picture elements connected to the plurality of gate lines and the plurality of source lines, a gate line driver circuit connected to the gate lines, and a gate line driver test circuit comprising transistors, the transistors being connected to the gate lines, a test signal input terminal and a test signal output terminal, the method comprising: applying test signals to the test signal input terminal when the gate line driver circuit is operated; and testing whether predetermined signals are applied to the test signal output terminal.
Claim 14
Independent Claim
129 words
A method for driving a source line driver test circuit of a liquid crystal device, the liquid crystal device including a plurality of gate lines and a plurality of source lines disposed on one of a pair of substrates, a plurality of picture elements connected to the plurality of gate lines and the plurality of source lines, a source line driver circuit connected to the source lines, and a source line driver test circuit comprising transistors, the transistors being connected to the source lines, a test signal input terminal and a test signal output terminal, the method comprising: applying test signals to the test signal input terminal when the source line driver circuit is operated; and testing whether the test signals are supplied to the test signal output terminal.
Claim 15
Independent Claim
129 words
A method for driving a source line driver test circuit of a liquid crystal device, the liquid crystal device including a plurality of gate lines and a plurality of source lines disposed on one of a pair of substrates, a plurality of picture elements connected to the plurality of gate lines and the plurality of source lines, a source line driver circuit connected to the source lines, and a source line driver test circuit comprising transistors, the transistors being connected to the source lines, a test signal input terminal and a test signal output terminal, the method comprising: applying test signals to the test signal input terminal when the source line driver circuit is operated; and testing whether the test signals are supplied to the test signal output terminal.
Claim 16
Independent Claim
123 words
A method for driving at least one driver test circuit of a liquid crystal device, the liquid crystal device including a plurality of first lines and a plurality of second lines arranged in a matrix, output terminals of driver circuits connected to the first and second lines, and at least one driver test circuit comprising transistors, the transistors of the at least one driver test circuit being connected to one of the first and second lines, a test signal input terminal and a test signal output terminal, the method comprising: applying test signals to the test signal input terminal when at least one of the driver circuits is operated; and testing whether the test signals are applied to the test signal output terminal.
Claim 17
Independent Claim
123 words
A method for driving at least one driver test circuit of a liquid crystal device, the liquid crystal device including a plurality of first lines and a plurality of second lines arranged in a matrix, output terminals of driver circuits connected to the first and second lines, and at least one driver test circuit comprising transistors, the transistors of the at least one driver test circuit being connected to one of the first and second lines, a test signal input terminal and a test signal output terminal, the method comprising: applying test signals to the test signal input terminal when at least one of the driver circuits is operated; and testing whether the test signals are applied to the test signal output terminal.
Claim 18
Independent Claim
217 words
A method for driving a gate line driver test circuit and a source line driver test circuit of a liquid crystal device, the liquid crystal device including a plurality of gate lines and a plurality of source lines disposed on one of a pair of substrates, a plurality of picture elements connected to the plurality of gate lines and the plurality of source lines, a source line driver circuit connected to the source lines, a gate line driver circuit connected to the gate lines, a source line driver test circuit comprising first transistors, the first transistors being connected to the source lines, a first test signal input terminal and a first test signal output terminal, and a gate line driver test circuit comprising second transistors, the second transistors being connected to the gate lines, a second test signal input terminal and a second test signal output terminal, the method comprising: applying first test signals to the first test signal input terminal and applying second test signals to the second test signal input terminal when the source line driver circuit and the gate line driver circuit are operated; and testing whether the first signals are applied to the first test signal output terminal and whether the second test signals are applied to the second test signal output terminal.
Claim 19
Independent Claim
217 words
A method for driving a gate line driver test circuit and a source line driver test circuit of a liquid crystal device, the liquid crystal device including a plurality of gate lines and a plurality of source lines disposed on one of a pair of substrates, a plurality of picture elements connected to the plurality of gate lines and the plurality of source lines, a source line driver circuit connected to the source lines, a gate line driver circuit connected to the gate lines, a source line driver test circuit comprising first transistors, the first transistors being connected to the source lines, a first test signal input terminal and a first test signal output terminal, and a gate line driver test circuit comprising second transistors, the second transistors being connected to the gate lines, a second test signal input terminal and a second test signal output terminal, the method comprising: applying first test signals to the first test signal input terminal and applying second test signals to the second test signal input terminal when the source line driver circuit and the gate line driver circuit are operated; and testing whether the first signals are applied to the first test signal output terminal and whether the second test signals are applied to the second test signal output terminal.
Claim 20
Independent Claim
144 words
A method of forming a liquid crystal device comprising: forming a pair of opposed and spaced apart substrates; forming a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; forming a plurality of picutre elements arranged on one of the substrates and connected to said source lines and said gate lines; forming a gate line driver circuit connected to said gate lines; and forming a gate line driver test circuit comprising transistors, said transistors being coupled to a test signal input terminal, test signal output terminal and said gate lines, wherein test check signals are output to said test signal output terminal through said transistors in accordance with application of test signals to the test signal input terminal and operation of the gate line driver circuit.
Claim 21
Independent Claim
144 words
A method of forming a liquid crystal device comprising: forming a pair of opposed and spaced apart substrates; forming a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; forming a plurality of picutre elements arranged on one of the substrates and connected to said source lines and said gate lines; forming a gate line driver circuit connected to said gate lines; and forming a gate line driver test circuit comprising transistors, said transistors being coupled to a test signal input terminal, test signal output terminal and said gate lines, wherein test check signals are output to said test signal output terminal through said transistors in accordance with application of test signals to the test signal input terminal and operation of the gate line driver circuit.
Claim 22
Dependent Claim
18 words
The method of forming a liquid crystal device of claim 12, wherein said transistors comprise thin film transistors.
Claim 23
Independent Claim
147 words
A method of forming a liquid crystal device comprising: forming a pair of opposed and spaced apart substrates; forming a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; forming a plurality of picture elements arranged on the one of the substrates and connected to said source lines and said gate lines; forming a source line driver circuit connected to said source lines; and forming a source line driver test circuit comprising transistors, said transistors being coupled to a test signal input terminal, a test signal output terminal and said source lines, wherein test check signals are output to said test signal output terminal through said transistors in accordance with application of test signals to the test signal input terminal and the operation of the source line driver circuit.
Claim 24
Independent Claim
147 words
A method of forming a liquid crystal device comprising: forming a pair of opposed and spaced apart substrates; forming a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; forming a plurality of picture elements arranged on the one of the substrates and connected to said source lines and said gate lines; forming a source line driver circuit connected to said source lines; and forming a source line driver test circuit comprising transistors, said transistors being coupled to a test signal input terminal, a test signal output terminal and said source lines, wherein test check signals are output to said test signal output terminal through said transistors in accordance with application of test signals to the test signal input terminal and the operation of the source line driver circuit.
Claim 25
Dependent Claim
18 words
The method of forming a liquid crystal device of claim 14, wherein said transistors comprise thin film transistors.
Claim 26
Independent Claim
242 words
A method of forming a liquid crystal device comprising: forming a pair of opposed and spaced apart insulating substrates; forming a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; forming a plurality of picture elements arranged on the one of the substrates and connected to said source lines and said gate lines; forming a source line driver circuit connected to said source lines; forming a gate line driver circuit connected to said gate lines; forming a source line driver test circuit comprising first transistors, said first transistors being coupled to a first test signal output terminal, a first test signal input terminal and said source lines; and forming a gate line driver test circuit comprising second transistors, said second transistors being coupled to a second test signal input terminal, a second test signal output terminal and said gate lines, wherein first test check signals are output to said first test signal output terminal through said first transistors in accordance with application of first test signals to the first test signal input terminal and the operation of the source line driver circuit, and second test check signals are output to said second test signal output terminal through said second transistors in accordance with application of second test signals to the second test signal input terminal and the operation of the gate line driver circuit.
Claim 27
Independent Claim
242 words
A method of forming a liquid crystal device comprising: forming a pair of opposed and spaced apart insulating substrates; forming a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; forming a plurality of picture elements arranged on the one of the substrates and connected to said source lines and said gate lines; forming a source line driver circuit connected to said source lines; forming a gate line driver circuit connected to said gate lines; forming a source line driver test circuit comprising first transistors, said first transistors being coupled to a first test signal output terminal, a first test signal input terminal and said source lines; and forming a gate line driver test circuit comprising second transistors, said second transistors being coupled to a second test signal input terminal, a second test signal output terminal and said gate lines, wherein first test check signals are output to said first test signal output terminal through said first transistors in accordance with application of first test signals to the first test signal input terminal and the operation of the source line driver circuit, and second test check signals are output to said second test signal output terminal through said second transistors in accordance with application of second test signals to the second test signal input terminal and the operation of the gate line driver circuit.
Claim 28
Dependent Claim
23 words
The method of forming a liquid crystal device of claim 16, wherein said first transistors and said second transistors comprise thin film transistors.
Claim 29
Independent Claim
120 words
A method of forming a liquid crystal device comprising: forming a plurality of first lines and a plurality of second lines arranged in a matrix; forming output terminals of driver circuits connected to said plurality of first lines and said plurality of second lines; and forming at least one driver test circuit comprising transistors, said transistors of said at least one driver test circuit being coupled to a test signal input terminal, a test signal output terminal and one of said first and second lines, wherein check test signals are output to said test signal output terminal through said transistors in accordance with application of test signals to the test signal input terminal and the operation of said driver circuit.
Claim 30
Independent Claim
120 words
A method of forming a liquid crystal device comprising: forming a plurality of first lines and a plurality of second lines arranged in a matrix; forming output terminals of driver circuits connected to said plurality of first lines and said plurality of second lines; and forming at least one driver test circuit comprising transistors, said transistors of said at least one driver test circuit being coupled to a test signal input terminal, a test signal output terminal and one of said first and second lines, wherein check test signals are output to said test signal output terminal through said transistors in accordance with application of test signals to the test signal input terminal and the operation of said driver circuit.
Claim 31
Dependent Claim
199 words
A projection type display device including a light source, at least one light valve, and at least one projecting optical system for projecting a color image, the at least one light valve including a plurality of liquid crystal cells, wherein data signals are supplied to the plurality of liquid crystal cells through a plurality of field effect transistors arranged in a plurality of picture elements, the light valve comprising: a pair of opposed and spaced apart substrates; a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; a plurality of picture elements arranged on one of the substrates and connected to said source lines and said gate lines; a gate line driver circuit connected to said gate lines; and a gate line driver test circuit comprising transistors, said transistors being coupled to a test signal input terminal, test signal output terminal and said gate lines, wherein test check signals are output to said test signal output terminal through said transistors in accordance with application of test signals to the test signal input terminal and operation of the gate line driver circuit.
Claim 32
Dependent Claim
199 words
A projection type display device including a light source, at least one light valve, and at least one projecting optical system for projecting a color image, the at least one light valve including a plurality of liquid crystal cells, wherein data signals are supplied to the plurality of liquid crystal cells through a plurality of field effect transistors arranged in a plurality of picture elements, the light valve comprising: a pair of opposed and spaced apart substrates; a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; a plurality of picture elements arranged on one of the substrates and connected to said source lines and said gate lines; a gate line driver circuit connected to said gate lines; and a gate line driver test circuit comprising transistors, said transistors being coupled to a test signal input terminal, test signal output terminal and said gate lines, wherein test check signals are output to said test signal output terminal through said transistors in accordance with application of test signals to the test signal input terminal and operation of the gate line driver circuit.
Claim 33
Dependent Claim
15 words
The projection type display device of claim 19, wherein said transistors comprises thin film transistors.
Claim 34
Dependent Claim
202 words
A projection type display device including a light source, at least one light valve, and at least one projecting optical system for projecting a color image, the at least one light valve including a plurality of liquid crystal cells, wherein data signals are supplied to the plurality of liquid crystal cells through a plurality of field effect transistors arranged in a plurality of picture elements, the light valve comprising: a pair of opposed and spaced apart substrates; a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; a plurality of picture elements arranged on the one of the substrates and connected to said source lines and said gate lines; a source line driver circuit connected to said source lines; and a source line driver test circuit comprising transistors, said transistors being coupled to a test signal input terminal, a test signal output terminal and said source lines, wherein test check signals are output to said test signal output terminal through said transistors in accordance with application of test signals to the test signal input terminal and the operation of the source line driver circuit.
Claim 35
Dependent Claim
202 words
A projection type display device including a light source, at least one light valve, and at least one projecting optical system for projecting a color image, the at least one light valve including a plurality of liquid crystal cells, wherein data signals are supplied to the plurality of liquid crystal cells through a plurality of field effect transistors arranged in a plurality of picture elements, the light valve comprising: a pair of opposed and spaced apart substrates; a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; a plurality of picture elements arranged on the one of the substrates and connected to said source lines and said gate lines; a source line driver circuit connected to said source lines; and a source line driver test circuit comprising transistors, said transistors being coupled to a test signal input terminal, a test signal output terminal and said source lines, wherein test check signals are output to said test signal output terminal through said transistors in accordance with application of test signals to the test signal input terminal and the operation of the source line driver circuit.
Claim 36
Dependent Claim
15 words
The projection type display device of claim 21, wherein said transistors comprise thin film transistors.
Claim 37
Dependent Claim
295 words
A projection type display device including a light source, at least one light valve, and at least one projecting optical system for projecting a color image, the at least one light valve including a plurality of liquid crystal cells, wherein data signals are supplied to the plurality of liquid crystal cells through a plurality of field effect transistors arranged in a plurality of picture elements, the light valve comprising: a pair of opposed and spaced apart insulating substrates; a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; a plurality of picture elements arranged on the one of the substrates and connected to said source lines and said gate lines; a source line driver circuit connected to said source lines; a gate line driver circuit connected to said gate lines; a source line driver test circuit comprising first transistors, said first transistors being coupled to a first test signal output terminal, a first test signal input terminal and said source lines; and a gate line driver test circuit comprising second transistors, said second transistors being coupled to a second test signal input terminal, a second test signal output terminal and said gate lines, wherein first test check signals are output to said first test signal output terminal through said first transistors in accordance with application of first test signals to the first test signal input terminal and the operation of the source line driver circuit, and second test check signals are output to said second test signal output terminal through said second transistors in accordance with application of second test signals to the second test signal input terminal and the operation of the gate line driver circuit.
Claim 38
Dependent Claim
295 words
A projection type display device including a light source, at least one light valve, and at least one projecting optical system for projecting a color image, the at least one light valve including a plurality of liquid crystal cells, wherein data signals are supplied to the plurality of liquid crystal cells through a plurality of field effect transistors arranged in a plurality of picture elements, the light valve comprising: a pair of opposed and spaced apart insulating substrates; a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; a plurality of picture elements arranged on the one of the substrates and connected to said source lines and said gate lines; a source line driver circuit connected to said source lines; a gate line driver circuit connected to said gate lines; a source line driver test circuit comprising first transistors, said first transistors being coupled to a first test signal output terminal, a first test signal input terminal and said source lines; and a gate line driver test circuit comprising second transistors, said second transistors being coupled to a second test signal input terminal, a second test signal output terminal and said gate lines, wherein first test check signals are output to said first test signal output terminal through said first transistors in accordance with application of first test signals to the first test signal input terminal and the operation of the source line driver circuit, and second test check signals are output to said second test signal output terminal through said second transistors in accordance with application of second test signals to the second test signal input terminal and the operation of the gate line driver circuit.
Claim 39
Dependent Claim
20 words
The projection type display device of claim 23, wherein said first transistors and said second transistors comprise thin film transistors.
Claim 40
Dependent Claim
172 words
A projection type display device including a light source, at least one light valve, and at least one projecting optical system for projecting a color image, the at least one light valve including a plurality of liquid crystal cells, wherein data signals are supplied to the plurality of liquid crystal cells through a plurality of field effect transistors arranged in a plurality of picture elements, the light valve comprising: a plurality of first lines and a plurality of second lines arranged in a matrix; output terminals of driver circuits connected to said plurality of first lines and said plurality of second lines; and at least one driver test circuit comprising transistors, said transistors of said at least one driver test circuit being coupled to a test signal input terminal, a test signal output terminal and one of said first and second lines, wherein test signals applied to the test signal input terminal are output to said test signal output terminal through said transistors in accordance with the operation of said driver circuit.
Claim 41
Dependent Claim
172 words
A projection type display device including a light source, at least one light valve, and at least one projecting optical system for projecting a color image, the at least one light valve including a plurality of liquid crystal cells, wherein data signals are supplied to the plurality of liquid crystal cells through a plurality of field effect transistors arranged in a plurality of picture elements, the light valve comprising: a plurality of first lines and a plurality of second lines arranged in a matrix; output terminals of driver circuits connected to said plurality of first lines and said plurality of second lines; and at least one driver test circuit comprising transistors, said transistors of said at least one driver test circuit being coupled to a test signal input terminal, a test signal output terminal and one of said first and second lines, wherein test signals applied to the test signal input terminal are output to said test signal output terminal through said transistors in accordance with the operation of said driver circuit.
Claim 42
Dependent Claim
183 words
An electric view finder device including a liquid crystal device and a light source for illuminating the liquid crystal device, the liquid crystal device including a plurality of liquid crystal cells, wherein data signals are supplied to the liquid crystal cells through a plurality of transistors arranged in a plurality of picture elements, the liquid crystal device comprising: a pair of opposed and spaced apart substrates; a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; the plurality of picture elements arranged on one of the substrates and connected to said source lines and said gate lines; a gate line driver circuit connected to said gate lines; and a gate line driver test circuit comprising transistors, said transistors being coupled to a test signal input terminal, test signal output terminal and said gate lines, wherein test signals applied to the test signal input terminal are output to said test signal output terminal through said transistors in accordance with operation of the gate line driver circuit.
Claim 43
Dependent Claim
183 words
An electric view finder device including a liquid crystal device and a light source for illuminating the liquid crystal device, the liquid crystal device including a plurality of liquid crystal cells, wherein data signals are supplied to the liquid crystal cells through a plurality of transistors arranged in a plurality of picture elements, the liquid crystal device comprising: a pair of opposed and spaced apart substrates; a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; the plurality of picture elements arranged on one of the substrates and connected to said source lines and said gate lines; a gate line driver circuit connected to said gate lines; and a gate line driver test circuit comprising transistors, said transistors being coupled to a test signal input terminal, test signal output terminal and said gate lines, wherein test signals applied to the test signal input terminal are output to said test signal output terminal through said transistors in accordance with operation of the gate line driver circuit.
Claim 44
Dependent Claim
15 words
The electric view finder device of claim 26, wherein said transistors comprises thin film transistors.
Claim 45
Dependent Claim
186 words
An electric view finder device including a liquid crystal device and a light source for illuminating the liquid crystal device, the liquid crystal device including a plurality of liquid crystal cells, wherein data signals are supplied to the liquid crystal cells through a plurality of transistors arranged in a plurality of picture elements, the liquid crystal device comprising: a pair of opposed and spaced apart substrates; a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; the plurality of picture elements arranged on the one of the substrates and connected to said source lines and said gate lines; a source line driver circuit connected to said source lines; and a source line driver test circuit comprising transistors, said transistors being coupled to a test signal input terminal, a test signal output terminal and said source lines, wherein test signals applied to the test signal input terminal are output to said test signal output terminal through said transistors in accordance with the operation of the source line driver circuit.
Claim 46
Dependent Claim
186 words
An electric view finder device including a liquid crystal device and a light source for illuminating the liquid crystal device, the liquid crystal device including a plurality of liquid crystal cells, wherein data signals are supplied to the liquid crystal cells through a plurality of transistors arranged in a plurality of picture elements, the liquid crystal device comprising: a pair of opposed and spaced apart substrates; a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; the plurality of picture elements arranged on the one of the substrates and connected to said source lines and said gate lines; a source line driver circuit connected to said source lines; and a source line driver test circuit comprising transistors, said transistors being coupled to a test signal input terminal, a test signal output terminal and said source lines, wherein test signals applied to the test signal input terminal are output to said test signal output terminal through said transistors in accordance with the operation of the source line driver circuit.
Claim 47
Dependent Claim
15 words
The electric view finder device of claim 28, wherein said transistors comprise thin film transistors.
Claim 48
Dependent Claim
272 words
An electric view finder device including a liquid crystal device and a light source for illuminating the liquid crystal device, the liquid crystal device including a plurality of liquid crystal cells, wherein data signals are supplied to the liquid crystal cells through a plurality of transistors arranged in a plurality of picture elements, the liquid crystal device comprising: a pair of opposed and spaced apart insulating substrates; a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; the plurality of picture elements arranged on the one of the substrates and connected to said source lines and said gate lines; a source line driver circuit connected to said source lines; a gate line driver circuit connected to said gate lines; a source line driver test circuit comprising first transistors, said first transistors being coupled to a first test signal output terminal, a first test signal input terminal and said source lines; and a gate line driver test circuit comprising second transistors, said second transistors being coupled to a second test signal input terminal, a second test signal output terminal and said gate lines, wherein first test signals applied to the first test signal input terminal are output to said first test signal output terminal through said first transistors in accordance with the operation of the source line driver circuit, and second test signals applied to the second test signal input terminals are output to said second test signal output terminal through said second transistors in accordance with the operation of the gate line driver circuit.
Claim 49
Dependent Claim
272 words
An electric view finder device including a liquid crystal device and a light source for illuminating the liquid crystal device, the liquid crystal device including a plurality of liquid crystal cells, wherein data signals are supplied to the liquid crystal cells through a plurality of transistors arranged in a plurality of picture elements, the liquid crystal device comprising: a pair of opposed and spaced apart insulating substrates; a plurality of gate lines and a plurality of source lines disposed on one of the substrates, the plurality of source lines crossing the plurality of gate lines; the plurality of picture elements arranged on the one of the substrates and connected to said source lines and said gate lines; a source line driver circuit connected to said source lines; a gate line driver circuit connected to said gate lines; a source line driver test circuit comprising first transistors, said first transistors being coupled to a first test signal output terminal, a first test signal input terminal and said source lines; and a gate line driver test circuit comprising second transistors, said second transistors being coupled to a second test signal input terminal, a second test signal output terminal and said gate lines, wherein first test signals applied to the first test signal input terminal are output to said first test signal output terminal through said first transistors in accordance with the operation of the source line driver circuit, and second test signals applied to the second test signal input terminals are output to said second test signal output terminal through said second transistors in accordance with the operation of the gate line driver circuit.
Claim 50
Dependent Claim
20 words
The electric view finder device of claim 30, wherein said first transistors and said second transistors comprise thin film transistors.
Claim 51
Dependent Claim
161 words
An electric view finder device including a liquid crystal device and a light source for illuminating the liquid crystal device, the liquid crystal device including a plurality of liquid crystal cells, wherein data signals are supplied to the liquid crystal cells through a plurality of transistors arranged in a plurality of picture elements, the liquid crystal device comprising: a plurality of first lines and a plurality of second lines arranged in a matrix; output terminals of driver circuits connected to said plurality of first lines and said plurality of second lines; and at least one driver test circuit comprising transistors, said transistors of said at least one driver test circuit being coupled to a test signal input terminal, a test signal output terminal and one of said first and second lines, wherein test signals applied to the test signal input terminal are output to said test signal output terminal through said transistors in accordance with the operation of said driver circuit.
Claim 52
Dependent Claim
161 words
An electric view finder device including a liquid crystal device and a light source for illuminating the liquid crystal device, the liquid crystal device including a plurality of liquid crystal cells, wherein data signals are supplied to the liquid crystal cells through a plurality of transistors arranged in a plurality of picture elements, the liquid crystal device comprising: a plurality of first lines and a plurality of second lines arranged in a matrix; output terminals of driver circuits connected to said plurality of first lines and said plurality of second lines; and at least one driver test circuit comprising transistors, said transistors of said at least one driver test circuit being coupled to a test signal input terminal, a test signal output terminal and one of said first and second lines, wherein test signals applied to the test signal input terminal are output to said test signal output terminal through said transistors in accordance with the operation of said driver circuit.
Claim 53
Dependent Claim
138 words
An active matrix panel in which a plurality of gate lines, a plurality of source lines, and a source line driver circuit for providing signals to the source lines are provided on a substrate, the source line driver circuit comprising: a shift register, sample hold circuits which are controlled by output from the shift register and which sample data signals provided to a signal line and supplies the sampled data signals to said source lines, a plurality of switching elements electrically connected to the source lines, and a first common terminal electrically connected to the plurality of switching elements, wherein each of the signals supplied to the source lines through the sample hold circuits is supplied to a second common terminal through each of the switching elements, in response to the control signal from the first common terminal.
Claim 54
Dependent Claim
138 words
An active matrix panel in which a plurality of gate lines, a plurality of source lines, and a source line driver circuit for providing signals to the source lines are provided on a substrate, the source line driver circuit comprising: a shift register, sample hold circuits which are controlled by output from the shift register and which sample data signals provided to a signal line and supplies the sampled data signals to said source lines, a plurality of switching elements electrically connected to the source lines, and a first common terminal electrically connected to the plurality of switching elements, wherein each of the signals supplied to the source lines through the sample hold circuits is supplied to a second common terminal through each of the switching elements, in response to the control signal from the first common terminal.
Claim 55
Independent Claim
181 words
A method of testing an active matrix panel in which a plurality of gate lines, a plurality of source lines, and a source line driver circuit for providing signals to the source lines are provided on a substrate, the source line driver circuit comprising: a shift register, sample hold circuits which are controlled by output from the shift register and which sample data signals provided to a signal bus terminal and supply the sampled data signals to said source lines, a plurality of switching elements electrically connected to the source lines, and a first common terminal electrically connected to the plurality of switching elements, the method comprising the steps of: inputting a predetermined test signal into a signal bus terminal to supply it to the sample hold circuits, and scanning the shift register for supplying the control signal to the sample hold circuits; and supplying each of the signals supplied to the source lines through the sample hold circuits to a second common terminal through each of the switching elements, in response to the control signal from the first common terminals.
Claim 56
Independent Claim
181 words
A method of testing an active matrix panel in which a plurality of gate lines, a plurality of source lines, and a source line driver circuit for providing signals to the source lines are provided on a substrate, the source line driver circuit comprising: a shift register, sample hold circuits which are controlled by output from the shift register and which sample data signals provided to a signal bus terminal and supply the sampled data signals to said source lines, a plurality of switching elements electrically connected to the source lines, and a first common terminal electrically connected to the plurality of switching elements, the method comprising the steps of: inputting a predetermined test signal into a signal bus terminal to supply it to the sample hold circuits, and scanning the shift register for supplying the control signal to the sample hold circuits; and supplying each of the signals supplied to the source lines through the sample hold circuits to a second common terminal through each of the switching elements, in response to the control signal from the first common terminals.
Claim 57
Dependent Claim
142 words
A driving circuit of an active matrix panel in which a plurality of gate lines, a plurality of source lines, and a source line driver circuit for providing signals to the source lines are provided on a substrate, the source line driver circuit comprising: a shift register, sample hold circuits which are controlled by output from the shift register and which sample data signals provided to a signal line and supplies the sampled data signals to said source lines, a plurality of switching elements electrically connected to the source lines, and a first common terminal electrically connected to the plurality of switching elements, wherein each of the signals supplied to the source lines through the sample hold circuits is supplied to a second common terminal through each of the switching elements, in response to the control signal from the first common terminal.
Claim 58
Dependent Claim
142 words
A driving circuit of an active matrix panel in which a plurality of gate lines, a plurality of source lines, and a source line driver circuit for providing signals to the source lines are provided on a substrate, the source line driver circuit comprising: a shift register, sample hold circuits which are controlled by output from the shift register and which sample data signals provided to a signal line and supplies the sampled data signals to said source lines, a plurality of switching elements electrically connected to the source lines, and a first common terminal electrically connected to the plurality of switching elements, wherein each of the signals supplied to the source lines through the sample hold circuits is supplied to a second common terminal through each of the switching elements, in response to the control signal from the first common terminal.
Claim 59
Independent Claim
185 words
A method of testing a driving circuit for an active matrix panel in which a plurality of gate lines, a plurality of source lines, and a source line driver circuit for providing signals to the source lines are provided on a substrate, the source line driver circuit comprising: a shift register, sample hold circuits which are controlled by output from the shift register and which sample data signals provided to a signal bus terminal and supply the sampled data signals to said source lines, a plurality of switching elements electrically connected to the source lines, and a first common terminal electrically connected to the plurality of switching elements, the method comprising the steps of: inputting a predetermined test signal into a signal bus terminal to supply it to the sample hold circuit, and scanning the shift register for supplying the control signal to the sample hold circuits; and supplying each of the signals supplied to the source lines through the sample hold circuits to a second common terminal through each of the switching elements, in response to the control signal from the first common terminals.
Claim 60
Independent Claim
185 words
A method of testing a driving circuit for an active matrix panel in which a plurality of gate lines, a plurality of source lines, and a source line driver circuit for providing signals to the source lines are provided on a substrate, the source line driver circuit comprising: a shift register, sample hold circuits which are controlled by output from the shift register and which sample data signals provided to a signal bus terminal and supply the sampled data signals to said source lines, a plurality of switching elements electrically connected to the source lines, and a first common terminal electrically connected to the plurality of switching elements, the method comprising the steps of: inputting a predetermined test signal into a signal bus terminal to supply it to the sample hold circuit, and scanning the shift register for supplying the control signal to the sample hold circuits; and supplying each of the signals supplied to the source lines through the sample hold circuits to a second common terminal through each of the switching elements, in response to the control signal from the first common terminals.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-05-18 | 2001-11-17 | 2002-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-05-18 | 2005-11-17 | 2006-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-05-18 | 2009-11-17 | 2010-05-19 | $7700.00 | Window Closed / Lapsed |