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US5995176A Expired / Lapsed US ⏱️ 0.0 years remaining

Liquid crystal display apparatus having pixels of different orientation of liquid crystal capable of shielding leakage of light through the discontinuity of orientation

Assignee: Gold Charm Ltd
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Filing: 1997-03-21
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Granted: 1999-11-30
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Expires: 2017-03-21
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Abstract

Abstract In a liquid crystal display apparatus including first and second substrates having a liquid crystal layer therebetween, a plurality of pixel electrodes formed over the first substrate, and a counter electrode formed on the second substrate, the liquid crystal layer is divided into a plurality of regions having different orientation of liquid crystal for one of the pixel electrodes, and openings are provided in the pixel electrodes in alignment with discontinuity of orientation of liquid crystal formed by the different orientation of liquid crystal. Also, a plurality of conductive light shield layers are provided in alignment with the openings. Further, a bias voltage is applied to the conductive light shield layers.

Inventors

  • 👤 Hideo Sibahara

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-10 01:18
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133512; G02F1/136; G02F1/1337; G02F1/13373

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 109 words
A liquid crystal display apparatus comprising first and second substrates having a liquid crystal layer therebetween; a plurality of pixel electrodes formed over said first substrate, said liquid crystal layer being divided into a plurality of regions having different orientation of liquid crystal for one of said pixel electrodes, openings being provided in said pixel electrodes in alignment with discontinuity of orientation of liquid crystal formed by said different orientation of liquid crystal; a plurality of conductive light shield layers each provided in alignment with one of said openings, a bias voltage being applied to said conductive light shield layers; and a counter electrode formed on said second substrate.
Claim 2
Dependent Claim 109 words
A liquid crystal display apparatus comprising first and second substrates having a liquid crystal layer therebetween; a plurality of pixel electrodes formed over said first substrate, said liquid crystal layer being divided into a plurality of regions having different orientation of liquid crystal for one of said pixel electrodes, openings being provided in said pixel electrodes in alignment with discontinuity of orientation of liquid crystal formed by said different orientation of liquid crystal; a plurality of conductive light shield layers each provided in alignment with one of said openings, a bias voltage being applied to said conductive light shield layers; and a counter electrode formed on said second substrate.
Claim 3
Dependent Claim 51 words
The apparatus as set forth in claim 1, further comprising a plurality of TFTs formed over said first substrate, each of said TFTs being connected to one of said pixel electrodes, each of said conductive light shield layers being connected to a gate electrode of a respective one of said TFTs.
Claim 4
Dependent Claim 34 words
The apparatus as set forth in claim 1, further comprising a plurality of storage capacitor lines, each of said conductive light shield layers being connected to a respective one of said storage capacitor lines.
Claim 5
Dependent Claim 20 words
The apparatus as set forth in claim 1, wherein said conductive light shield layers are provided on said first substrate.
Claim 6
Dependent Claim 23 words
The apparatus as set forth in claim 1, further comprising an insulating layer between said pixel electrodes and said conductive light shield layers.
Claim 7
Dependent Claim 59 words
The apparatus as set forth in claim 1, further comprising: a first oriented layer formed on said pixel electrodes, a plurality of different rubbing operations being performed upon said first oriented layer for said different orientation of liquid crystal; and a second oriented layer formed on said counter electrode, a rubbing operation being performed upon said second oriented layer.
Claim 8
Dependent Claim 165 words
A liquid crystal display apparatus comprising: first and second substrates having a liquid crystal layer therebetween; a plurality of pixel electrodes formed over said first substrate, said liquid crystal layer being divided into a plurality of regions having different orientation of liquid crystal for one of said pixel electrodes, openings being provided in said pixel electrodes in alignment with discontinuity of orientation of liquid crystal formed by said different orientation of liquid crystal; a plurality of conductive light shield layers formed on said first substrate and each of said conductive light shield layers being provided in alignment with one of said openings; an insulating layer between said pixel electrodes and said conductive light shield layer; a counter electrode formed on said second substrate; and a plurality of TFTs formed over said first substrate, each of said TFTs being connected to one of said pixel electrodes, each of said conductive light shield layers being connected to a gate electrode of a respective one of said TFTs.
Claim 9
Dependent Claim 165 words
A liquid crystal display apparatus comprising: first and second substrates having a liquid crystal layer therebetween; a plurality of pixel electrodes formed over said first substrate, said liquid crystal layer being divided into a plurality of regions having different orientation of liquid crystal for one of said pixel electrodes, openings being provided in said pixel electrodes in alignment with discontinuity of orientation of liquid crystal formed by said different orientation of liquid crystal; a plurality of conductive light shield layers formed on said first substrate and each of said conductive light shield layers being provided in alignment with one of said openings; an insulating layer between said pixel electrodes and said conductive light shield layer; a counter electrode formed on said second substrate; and a plurality of TFTs formed over said first substrate, each of said TFTs being connected to one of said pixel electrodes, each of said conductive light shield layers being connected to a gate electrode of a respective one of said TFTs.
Claim 10
Dependent Claim 59 words
The apparatus as set forth in claim 7, further comprising: a first oriented layer formed on said pixel electrodes, a plurality of different rubbing operations being performed upon said first oriented layer for said different orientation of liquid crystal; and a second oriented layer formed on said counter electrode, a rubbing operation being performed upon said second oriented layer.
Claim 11
Dependent Claim 148 words
A liquid crystal display apparatus comprising: first and second substrates having a liquid crystal layer therebetween; a plurality of pixel electrodes formed over said first substrate, said liquid crystal layer being divided into a plurality of regions having different orientation of liquid crystal for one of said pixel electrodes, openings being provided in said pixel electrodes in alignment with discontinuity of orientation of liquid crystal formed by said different orientation of liquid crystal; a plurality of conductive light shield layers formed on said first substrate and each of said conductive light shield layers being provided in alignment with one of said openings; an insulating layer between said pixel electrodes and said conductive light shield layer; a counter electrode formed on said second substrate; and a plurality of storage capacitor lines, each of said conductive light shield layers being connected to a respective one of said storage capacitor lines.
Claim 12
Dependent Claim 148 words
A liquid crystal display apparatus comprising: first and second substrates having a liquid crystal layer therebetween; a plurality of pixel electrodes formed over said first substrate, said liquid crystal layer being divided into a plurality of regions having different orientation of liquid crystal for one of said pixel electrodes, openings being provided in said pixel electrodes in alignment with discontinuity of orientation of liquid crystal formed by said different orientation of liquid crystal; a plurality of conductive light shield layers formed on said first substrate and each of said conductive light shield layers being provided in alignment with one of said openings; an insulating layer between said pixel electrodes and said conductive light shield layer; a counter electrode formed on said second substrate; and a plurality of storage capacitor lines, each of said conductive light shield layers being connected to a respective one of said storage capacitor lines.
Claim 13
Dependent Claim 58 words
The apparatus as set forth in claim 9, further comprising: a first oriented layer formed on said pixel electrodes, a plurality of different rubbing operations being performed upon said first oriented layer for said different orientation of crystal; and a second oriented layer formed on said counter electrode, a rubbing operation being performed upon said second oriented layer.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2002-11-29 2003-05-31 2003-11-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2006-11-29 2007-05-31 2007-11-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2010-11-29 2011-05-31 2011-11-30 $7700.00 Window Closed / Lapsed

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