Liquid crystal device

Claim 2

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

The liquid crystal device of claim 1, wherein said transistors comprises thin film transistors.

Claim 4

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

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

The liquid crystal device of claim 3, wherein said transistors comprise thin film transistors.

Claim 7

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

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

The liquid crystal device of claim 5, wherein said first transistors and said second transistors comprise thin film transistors.

Claim 10

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

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 22

The method of forming a liquid crystal device of claim 12, wherein said transistors comprise thin film transistors.

Claim 25

The method of forming a liquid crystal device of claim 14, wherein said transistors comprise thin film transistors.

Claim 28

The method of forming a liquid crystal device of claim 16, wherein said first transistors and said second transistors comprise thin film transistors.

Claim 31

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

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

The projection type display device of claim 19, wherein said transistors comprises thin film transistors.

Claim 34

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

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

The projection type display device of claim 21, wherein said transistors comprise thin film transistors.

Claim 37

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

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

The projection type display device of claim 23, wherein said first transistors and said second transistors comprise thin film transistors.

Claim 40

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

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

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

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

The electric view finder device of claim 26, wherein said transistors comprises thin film transistors.

Claim 45

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

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

The electric view finder device of claim 28, wherein said transistors comprise thin film transistors.

Claim 48

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

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

The electric view finder device of claim 30, wherein said first transistors and said second transistors comprise thin film transistors.

Claim 51

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

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

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

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 57

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

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.