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US4687300A Expired / Lapsed US ⏱️ 0.0 years remaining

Liquid crystal display device

Assignee: Hitachi Ltd
•
Filing: 1985-11-06
•
Granted: 1987-08-18
•
Expires: 2005-11-06
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Abstract

Abstract A liquid crystal display device comprises first and second substrates coated on the inner surfaces thereof with electrodes, at least one of said first and second substrates including an extended portion thereof with projects beyond the edge of the other of said substrates, a sealing member disposed around the periphery enclosing liquid crystal material and sealing between the substrates, input conductors disposed on the inner surface of said extended portion and electrically connected to said electrodes, a plurality of driving integrated circuit chips mounted on the inner surface of said extended portion and electrically connected to said input conductors, including a plurality of pairs of input terminals thereof electrically connected, one input terminal constituting each pair is arranged in the reverse order on one side of a reference line with respect to the other constituting the pair on the other side of a reference line, metal film conductor formed on the inner surface of said extended portion and connecting said corresponding input terminals of said adjacent chips, a plurality of external contact terminals to an external apparatus, formed on the inner surface of said extended portion and electrically connected to input terminals of said chip.

Inventors

  • 👤 Kiichirou Kubo
  • 👤 Mikio Kanazaki

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 18:11
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345; G02F1/13452

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 194 words
A liquid crystal display device comprising: first and second substrates coated on the inner surfaces thereof with electrodes, at least one of said first and second substates including an extended portion thereof which projects beyond the edge of the other of said substrates, a sealing member disposed around the periphery enclosing liquid crystal material and sealing between substrates, input conductors disposed on the inner surface of said extended portion and electrically connected to said electrodes, a plurality of driving integrated circuit chips mounted on the inner surface of said extended portion and eletrically connected to said input conductors, including a plurality of pairs of input terminals thereof electrically connected, one input terminal constituting each pair is arranged in the reverse order on one side of a reference line with respect to the other constituting the pair on the other side of a reference line, metal film conductors formed on the inner surface of said extended portion and connecting said corresponding input terminals of said adjacent chips, a plurality of external contact terminals to an external apparatus, formed on the inner surface of said extended portion and elecrically connected to input terminals of said chip.
Claim 2
Dependent Claim 194 words
A liquid crystal display device comprising: first and second substrates coated on the inner surfaces thereof with electrodes, at least one of said first and second substates including an extended portion thereof which projects beyond the edge of the other of said substrates, a sealing member disposed around the periphery enclosing liquid crystal material and sealing between substrates, input conductors disposed on the inner surface of said extended portion and electrically connected to said electrodes, a plurality of driving integrated circuit chips mounted on the inner surface of said extended portion and eletrically connected to said input conductors, including a plurality of pairs of input terminals thereof electrically connected, one input terminal constituting each pair is arranged in the reverse order on one side of a reference line with respect to the other constituting the pair on the other side of a reference line, metal film conductors formed on the inner surface of said extended portion and connecting said corresponding input terminals of said adjacent chips, a plurality of external contact terminals to an external apparatus, formed on the inner surface of said extended portion and elecrically connected to input terminals of said chip.
Claim 3
Dependent Claim 26 words
A liquid crystal display device according to claim 1, wherein the driving integrated circuit chips include a plurality of integrated circuit chips for driving segment electrodes.
Claim 4
Dependent Claim 26 words
A liquid crystal display device according to claim 1, wherein the driving integrated circuit chips include a plurality of integrated circuit chips for driving scanning electrodes.
Claim 5
Dependent Claim 26 words
A liquid crystal display device according to claim 1, wherein said input terminals are arranged along a plurality of edges of said driving integrated circuit chips.
Claim 6
Dependent Claim 48 words
A liquid crystal display device according to claim 1, wherein some of said pairs of input terminals are not electrically connected to driving integrated circuits formed on the chips on which the pairs of input terminals are formed, and are used for electrical connections for other adjacent chips.

References Cited (Backward Citations)

US3928658A Cited
US4188626A Cited
US4277784A Cited
US4629289A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-08-17 1991-02-16 1991-08-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-08-17 1995-02-16 1995-08-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-08-17 1999-02-16 1999-08-18 $7700.00 Window Closed / Lapsed

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