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US5270848A Expired / Lapsed US ⏱️ 0.0 years remaining

Liquid crystal ITO connector having a metal layer

Assignee: Canon Inc
•
Filing: 1991-09-12
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Granted: 1993-12-14
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Expires: 2011-09-12
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Abstract

Abstract A liquid crystal apparatus includes a liquid crystal panel side electrode extending from a liquid crystal panel and an external circuit side electrode extending from an external circuit and connected to the liquid crystal panel side electrode for driving the liquid crystal panel, by using conductive material. The liquid crystal panel side electrode includes a laminated film made of an indium tin oxide film having a surface and a metal film on the surface. The metal film is selected from one of a molybdenum film and an aluminum film. The liquid crystal panel side electrode has a left portion of the metal film and an indium tin oxide film opening area, at a connection area between the liquid crystal panel side electrode and the external circuit side electrode. The indium tin oxide film of the liquid crystal panel side electrode is covered with the metal film over the entire surface thereof. The liquid crystal panel side electrode is formed in a stripe shape, and the left portion of the metal film of the liquid crystal panel side electrode at the connection area is formed to have a width 1/30 to 1/3 times as narrow as a width of the stripe.

Inventors

  • 👤 Hiroshi Takabayashi
  • 👤 Masanori Takahashi
  • 👤 Hideo Mori

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 15:13
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/22; H05K3/24; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345; H01; H01R; H01R12/00; H01R12/70; H01R12/7076; H05K2201/00; H05K2201/03; H05K2201/032; H05K2201/0326; H10; H10W; H10W74/00; H10W74/10; H10W74/15; H10W90/00; H10W90/701; H10W90/721; H10W90/724

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 212 words
A liquid crystal apparatus comprising: a liquid crystal panel side electrode extending from a liquid crystal panel; and an external circuit side electrode extending from an external circuit and connected to said liquid crystal panel side electrode for driving said liquid crystal panel, by using conductive material, wherein said liquid crystal panel side electrode comprises a laminated film made of an indium tin oxide film having a surface and a metal film on the surface, the metal film being a selected one of a molybdenum and an aluminum film, and said liquid crystal panel side electrode has a left portion of the metal film and an indium tin oxide film opening area, at a connection area between said liquid crystal panel side electrode and said external circuit side electrode, the indium tin oxide film of said liquid crystal panel side electrode being covered with the metal film over the entire surface thereof except at the indium tin oxide film opening area, and wherein said liquid crystal panel side electrode is formed in a stripe shape, and the left portion of the metal film of said liquid crystal panel side electrode at the connection area is formed to have a width 1/30 to 1/3 times as narrow as a width of said stripe.
Claim 2
Dependent Claim 212 words
A liquid crystal apparatus comprising: a liquid crystal panel side electrode extending from a liquid crystal panel; and an external circuit side electrode extending from an external circuit and connected to said liquid crystal panel side electrode for driving said liquid crystal panel, by using conductive material, wherein said liquid crystal panel side electrode comprises a laminated film made of an indium tin oxide film having a surface and a metal film on the surface, the metal film being a selected one of a molybdenum and an aluminum film, and said liquid crystal panel side electrode has a left portion of the metal film and an indium tin oxide film opening area, at a connection area between said liquid crystal panel side electrode and said external circuit side electrode, the indium tin oxide film of said liquid crystal panel side electrode being covered with the metal film over the entire surface thereof except at the indium tin oxide film opening area, and wherein said liquid crystal panel side electrode is formed in a stripe shape, and the left portion of the metal film of said liquid crystal panel side electrode at the connection area is formed to have a width 1/30 to 1/3 times as narrow as a width of said stripe.
Claim 3
Dependent Claim 58 words
A liquid crystal apparatus according to claim 1, wherein the left portion of the metal film of said liquid crystal panel side electrode at the connection area is formed to have a width 1/30 to 1/3 times as narrow as the width of the stripe along the longitudinal direction of the stripe at opposite ends of the strip.
Claim 4
Dependent Claim 15 words
A liquid crystal apparatus according to claim 1, wherein the conductive material comprises metal particles.
Claim 5
Dependent Claim 17 words
A liquid crystal apparatus according to claim 1, wherein the conductive material comprises metal plated resin particles.

References Cited (Backward Citations)

JPS59129833A Cited
US4824213A Cited
JPS61174507A Cited
US4964700A Cited
US4935757A Cited
EP0344367A1 Cited
EP0385787A2 Cited
EP0422906A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1996-12-13 1997-06-14 1997-12-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2000-12-13 2001-06-14 2001-12-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2004-12-13 2005-06-14 2005-12-14 $7700.00 Window Closed / Lapsed

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