Patent US5268778A successfully refreshed from Google Patents.
US5268778A
Expired / Lapsed
US
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Liquid crystal display with one light shield between color filters and second light shield between filter elements
Assignee: Sharp Corp
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Filing: 1991-10-23
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Granted: 1993-12-07
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Expires: 2011-10-23
Abstract
Abstract A liquid crystal display apparatus includes light shielding members provided longitudinally and latitudinally throughout the whole face of one transparent base plate out of a pair of base plates to be provided oppositely with a liquid crystal layer being disposed therebetween, having constant width and pitch, transparent conductive members provided on the liquid crystal layer side, of the above described one pair of light transparent base plate. It is characterized in that the non-display portion provided on the transparent base plate is provided with the light shielding member, with the above-described liquid crystal layer being disposed therebetween, and is overlapped by the light shielding member so as not to protrude from the above described light shield member.
Inventors
- 👤 Mitsuaki Shioji
- 👤 Kunihiko Ito
- 👤 Hiroshi Fukutani
- 👤 Kazuhiko Akimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:16
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133512
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
156 words
A liquid crystal display apparatus with a segment format comprising: first and second transparent base plates with a liquid crystal provided therebetween; a plurality of multi-color filters, each including a plurality of elements of different colors, disposed on a liquid crystal side of the first transparent base plate; a plurality of first light shielding members, one being disposed between each adjacent pair of the plurality of elements of each of the multi-color filters; a plurality of second light shielding members, one being disposed between each adjacent pair of the multi-color filters; and transparent conductive members disposed on the first transparent base plate, said transparent conductive members including a first portion for display in the segment format and a second portion, connected to the first portion for non-display, wherein said plurality of second light shielding members are disposed so as to shield light from the second portions of the transparent conductive members and thereby render them non-displayable.
Claim 2
Dependent Claim
156 words
A liquid crystal display apparatus with a segment format comprising: first and second transparent base plates with a liquid crystal provided therebetween; a plurality of multi-color filters, each including a plurality of elements of different colors, disposed on a liquid crystal side of the first transparent base plate; a plurality of first light shielding members, one being disposed between each adjacent pair of the plurality of elements of each of the multi-color filters; a plurality of second light shielding members, one being disposed between each adjacent pair of the multi-color filters; and transparent conductive members disposed on the first transparent base plate, said transparent conductive members including a first portion for display in the segment format and a second portion, connected to the first portion for non-display, wherein said plurality of second light shielding members are disposed so as to shield light from the second portions of the transparent conductive members and thereby render them non-displayable.
Claim 3
Dependent Claim
31 words
The liquid crystal display of claim 1, wherein the plurality of first light shielding members are of a relatively narrow width in relation to the plurality of second light shielding members.
Claim 4
Dependent Claim
15 words
The liquid crystal display of claim 1, wherein the display is a normally white display.
Claim 5
Dependent Claim
15 words
The liquid crystal display of claim 1, wherein the display is a normally black display.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-12-06 | 1997-06-07 | 1997-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-12-06 | 2001-06-07 | 2001-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-12-06 | 2005-06-07 | 2005-12-07 | $7700.00 | Window Closed / Lapsed |