EP0260141A2
Expired / Lapsed
EP
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Liquid crystal apparatus
Assignee: Toshiba Corp
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Filing: 1987-09-10
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Granted: —
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Expires: 2007-09-10
Abstract
Abstract A liquid crystal apparatus in which an anisotropic conductive layer (122) made of organic resin (120) containing several electrical conductive particles (121) having a substantially identical particle sizes is disposed between lead electrodes of a liquid crystal device (112) and the lead electrodes of a drive circuit board (114-117), thermocompression bonding being applied to make a simple substance of the electrical conductive particles (121) in direct contact with the both lead electrodes to allow both lead electrodes to be electrically connected with each other. Further, at least one of the lead electrodes of a common electrode (106) in the liquid crystal device (112) and the lead electrodes of the circuit board (114-117) corresponding to the lead electrode of the common electrode (106) are spaced, and the pitches and widths of the lead electrodes belonging to at least one of the liquid crystal device (112) and the circuit board (114-117) are in the range of +/- 30% around their respective averaged values.
Inventors
- 👤 Shozo Takeno
- 👤 Masayuki Kakegawa
- 👤 Yoshimasa Adachi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 01:52
CPC Classifications
G; G09; G09F; G09F9/00; G09F9/30; G09F9/35; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345; G02F1/13452; H; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/321; H05K3/323; H05K3/36; H05K3/361; H05K1/00; H05K1/02; H05K1/11; H05K1/117; H05K2201/00; H05K2201/02; H05K2201/0203; H05K2201/0206; H05K2201/023; H05K2201/0263; H05K2201/0266; H05K2201/09; H05K2201/09209; H05K2201/09372; H05K2201/094; H05K2201/09654; H05K2201/09663
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
212 words
A liquid crystal apparatus, comprising; a liquid crystal device (112) in which liquid crystal (107) is held between a substrate (109) on which a common electrode (106) is formed and a substrate (101) on which a plurality of pixel electrodes (103) are formed, and in which lead electrodes for applying voltage to said common electrode (106) and to said pixel electrodes (103) being led from one of said substrates are formed, a circuit board (114-117) formed thereto with lead electrodes, an anisotropic conductive layer (122) disposed between lead electrodes of said liquid crystal device (112) and of said circuit board (114-117), and made of organic resin (120) containing several electrical conductive particles (121) having substantially equal particle sizes, simple substance of said electrical conductive particles (121) makes in direct contact with lead electrodes to electrically connect both lead electrodes with each other, said apparatus characterized in that at least one of lead electrodes of said common electrode (106) and lead electrodes of said circuit board (114-117) corresponding to lead electrodes of said common electrode (106) are spaced, and the pitches and widths of lead electrodes of at least one of said liquid crystal device (112) and said circuit board (114-117) are within the range of ± 30% around respective averaged values thereof.
Claim 2
Dependent Claim
212 words
A liquid crystal apparatus, comprising; a liquid crystal device (112) in which liquid crystal (107) is held between a substrate (109) on which a common electrode (106) is formed and a substrate (101) on which a plurality of pixel electrodes (103) are formed, and in which lead electrodes for applying voltage to said common electrode (106) and to said pixel electrodes (103) being led from one of said substrates are formed, a circuit board (114-117) formed thereto with lead electrodes, an anisotropic conductive layer (122) disposed between lead electrodes of said liquid crystal device (112) and of said circuit board (114-117), and made of organic resin (120) containing several electrical conductive particles (121) having substantially equal particle sizes, simple substance of said electrical conductive particles (121) makes in direct contact with lead electrodes to electrically connect both lead electrodes with each other, said apparatus characterized in that at least one of lead electrodes of said common electrode (106) and lead electrodes of said circuit board (114-117) corresponding to lead electrodes of said common electrode (106) are spaced, and the pitches and widths of lead electrodes of at least one of said liquid crystal device (112) and said circuit board (114-117) are within the range of ± 30% around respective averaged values thereof.
Claim 3
Dependent Claim
39 words
The liquid crystal apparatus according to claim 1, wherein the pitches and widths of lead electrodes belonging to at least one of said liquid crystal device (112) and said circuit board (114-117) are substantially identical with each other, respectively.
Claim 4
Dependent Claim
33 words
The liquid crystal apparatus according to claim 1, wherein said liquid crystal device (112) is an active matrix type liquid crystal device having semiconductor elements (102) on each of said pixel electrode (103).
Claim 5
Dependent Claim
245 words
A liquid crystal apparatus, comprising; a liquid crystal device (112) in which liquid crystal (107) is held between a substrate (109) on which a common electrode (106) is formed and a substrate (101) on which a plurality of pixel electrodes (103) are formed, and in which lead electrodes for applying voltage to said common electrode (106) and to said pixel electrodes (103) being led from one of said substrates are formed, a circuit board (114-117) formed thereto with lead electrodes, an anisotropic conductive layer (122) disposed between lead electrodes of said liquid crystal device (112) and of said circuit board (114-117), and made of organic resin (120) containing several electrical conductive particles (121) having substantially equal particle sizes, simple substance of said electrical conductive particles (121) makes in direct contact with lead electrodes to electrically connect both lead electrodes with each other, said apparatus characterized in that at least one of lead electrodes of said common electrode (106) and lead electrodes of said circuit board (114-117) correcponding to lead electrodes of said common electrode (106) are spaced, and the pitches and widths of lead electrodes of at least one of said liquid crystal device (112) and said circuit board (114-117) are within the range of ± 30% around respective averaged values thereof, and that a series of pattern wirings (201-208) are provided on the rear side of lead electrode forming surface of said circuit board (114-117) along the direction in which lead electrodes are arrayed.
Claim 6
Dependent Claim
245 words
A liquid crystal apparatus, comprising; a liquid crystal device (112) in which liquid crystal (107) is held between a substrate (109) on which a common electrode (106) is formed and a substrate (101) on which a plurality of pixel electrodes (103) are formed, and in which lead electrodes for applying voltage to said common electrode (106) and to said pixel electrodes (103) being led from one of said substrates are formed, a circuit board (114-117) formed thereto with lead electrodes, an anisotropic conductive layer (122) disposed between lead electrodes of said liquid crystal device (112) and of said circuit board (114-117), and made of organic resin (120) containing several electrical conductive particles (121) having substantially equal particle sizes, simple substance of said electrical conductive particles (121) makes in direct contact with lead electrodes to electrically connect both lead electrodes with each other, said apparatus characterized in that at least one of lead electrodes of said common electrode (106) and lead electrodes of said circuit board (114-117) correcponding to lead electrodes of said common electrode (106) are spaced, and the pitches and widths of lead electrodes of at least one of said liquid crystal device (112) and said circuit board (114-117) are within the range of ± 30% around respective averaged values thereof, and that a series of pattern wirings (201-208) are provided on the rear side of lead electrode forming surface of said circuit board (114-117) along the direction in which lead electrodes are arrayed.
References Cited (Backward Citations)
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