EP0062289A2
Expired / Lapsed
EP
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Display panel
Assignee: Hitachi Ltd
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Filing: 1982-03-30
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Granted: —
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Expires: 2002-03-30
Abstract
Abstract A display panel includes a pair of substrates (11, 12) arranged face to face with each other with a predetermined gap therebetween, at least a pair of electrodes each provided on a corresponding one of facing surfaces of the substrates, and a display substance (3) provided between the electrodes. A picture element (40) is made up of a pair of facing portions of the electrodes and a portion of the display substance (3) situated between the facing portions. At least one of the electrodes is made up of a multiplicity of picture element electrodes (40) formed of a transparent conductive film (14) and juxtaposed to each other and a contact metal member (20) for substantially making an electrical connection of a plurality of ones of the picture element electrodes (40). The contact metal member (20) is made up of a first layer (21) made of chromium or a chromium alloy and a second layer (22) formed on the first layer and made of nickel or gold.
Inventors
- 👤 Moriaki Fuyama
- 👤 Katsumi Tamura
- 👤 Makoto Morijiri
- 👤 Mamoru Sawahata
- 👤 Hiroaki Hachino
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 15:44
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/001; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1343; G02F1/13439; G02F1/1345; H; H05; H05K; H05K3/00; H05K3/22; H05K3/24; H10; H10F; H10F71/00; H10F71/138; H01; H01J; H01J2211/00; H01J2211/20; H01J2211/22; H01J2211/225; H05K2201/00; H05K2201/03; H05K2201/032; H05K2201/0326; Y; Y02; Y02E; Y02E10/00; Y02E10/50
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
176 words
A display panel comprising: a pair of substrates (11, 12) arranged face to face with each other with a predetermined gap therebetween; at least a pair of electrodes each provided on a corresponding one of facing surfaces of said substrates, at least one of said electrodes being made up of a multiplicity of picture element electrodes (40) formed of a transparent conductive film (14) and juxtaposed to each other and a contact metal member (20) for substantially making an electrical connection of a plurality of ones of said picture element electrodes (40), said contact metal member (20) being made up of a first layer (21) and a second layer (22), said first layer (21) being made of chromium or a chromium alloy, said second layer (22) being formed on said first layer and made of nickel or gold; and a display substance (3) provided between said electrodes, a picture element (40) being made up of a pair of facing portions of said electrodes and a portion of said display substance (3) situated between said facing portions.
Claim 2
Dependent Claim
176 words
A display panel comprising: a pair of substrates (11, 12) arranged face to face with each other with a predetermined gap therebetween; at least a pair of electrodes each provided on a corresponding one of facing surfaces of said substrates, at least one of said electrodes being made up of a multiplicity of picture element electrodes (40) formed of a transparent conductive film (14) and juxtaposed to each other and a contact metal member (20) for substantially making an electrical connection of a plurality of ones of said picture element electrodes (40), said contact metal member (20) being made up of a first layer (21) and a second layer (22), said first layer (21) being made of chromium or a chromium alloy, said second layer (22) being formed on said first layer and made of nickel or gold; and a display substance (3) provided between said electrodes, a picture element (40) being made up of a pair of facing portions of said electrodes and a portion of said display substance (3) situated between said facing portions.
Claim 3
Dependent Claim
63 words
A display panel according to Claim 1, wherein at least one of said electrodes is made up of a multiplicity of picture element electrodes (40) which are regularly juxtaposed and formed of a transparent conductive film (14), and at least two contact metal members (20) each for substantially making an electrical connection of a plurality of ones of said picture element electrodes (40).
Claim 4
Dependent Claim
94 words
A display panel according to Claims 1 and 2, wherein at least one of said electrodes is made up of a multiplicity of picture element electrodes (40) which are juxtaposed to each other and formed of a transparent conductive film (14), a transparent conductive film (14) for connecting a plurality of ones of said picture element electrodes (40), and a contact metal member (20) which is formed on said transparent conductive film (14) for connecting said plural picture element electrodes (40) and substantially makes an electrical connection of said plural picture element electrodes (40).
Claim 5
Dependent Claim
54 words
A display panel according to Claims 1, 2 and 3, wherein a third layer (23) made of copper is formed on said second layer (22) of said contact metal member (20) at a connecting terminal portion (30) of said contact metal member (20) for connecting an external circuit to said contact metal member (20).
Claim 6
Dependent Claim
38 words
A display panel according to Claims 1, 2, 3 and 4, wherein when said first layer (21) is made of chromium, the thickness of said first layer (21) lies o within a range from 250 to 1000 A.
Claim 7
Dependent Claim
22 words
A display panel according to Claims 1, 2, 3 4 and 5, wherein said display substance (3) is a liquid crystal material.
References Cited (Backward Citations)
No citation records indexed.
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