Patent US5648828A successfully refreshed from Google Patents.
US5648828A
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Liquid crystal display apparatus having a pixel with areas of different orientation in which a spacer has a cylindrical profile for orienting
Assignee: Vista Peak Ventures LLC
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Filing: 1995-08-02
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Granted: 1997-07-15
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Expires: 2015-08-02
Abstract
Abstract A TFT substrate and an opposed electrode substrate are disposed in an opposing relationship to each other with a spacer interposed therebetween for keeping the gap between the substrates fixed, and liquid crystal filling between the substrates. Orientation films on the substrates are oriented in different directions so that they divide the picture elements. A light intercepting film is provided on an orientation dividing line. The surface of the spacer is processed by orientation processing by which the liquid crystal is oriented perpendicularly to the surface of the spacer or in parallel to the substrates.
Inventors
- 👤 Michiaki Sakamoto
- 👤 Tatsuo Onozawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:37
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1337; G02F1/133753; G02F1/1339; G02F1/13392; G02F1/1335; G02F1/133509; G02F1/133512
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
130 words
A liquid crystal display apparatus of the orientation dividing type, comprising: a plurality of picture elements each divided into a plurality of areas having different orientation directions of liquid crystal and wherein a pair of transparent substrates, on which electrodes constituting the picture elements are formed, are disposed in an opposing relationship to each other with a spacer interposed therebetween for keeping a gap between said transparent substrates fixed and liquid crystal filling the gap, the surface of said spacer is processed by orientation processing by which said liquid crystal is oriented perpendicularly to the surface of said spacer or in parallel to said transparent substrates, said spacer has a cylindrical profile, and the orientation processing is a process of providing axial grooves on a cylindrical face of said spacer.
Claim 2
Dependent Claim
130 words
A liquid crystal display apparatus of the orientation dividing type, comprising: a plurality of picture elements each divided into a plurality of areas having different orientation directions of liquid crystal and wherein a pair of transparent substrates, on which electrodes constituting the picture elements are formed, are disposed in an opposing relationship to each other with a spacer interposed therebetween for keeping a gap between said transparent substrates fixed and liquid crystal filling the gap, the surface of said spacer is processed by orientation processing by which said liquid crystal is oriented perpendicularly to the surface of said spacer or in parallel to said transparent substrates, said spacer has a cylindrical profile, and the orientation processing is a process of providing axial grooves on a cylindrical face of said spacer.
Claim 3
Dependent Claim
43 words
A liquid crystal display apparatus as claimed in claim 1, wherein a film having a light intercepting function is provided above or below a boundary line between the areas in which the orientation directions of the picture elements are different from each other.
References Cited (Backward Citations)
JPS57613A
Cited
JPH0369917A
Cited
JPH04177324A
Cited
US5473455A
Cited
US5504604A
Cited
JPH05224210A
Cited
JPH05232474A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-07-14 | 2001-01-13 | 2001-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-07-14 | 2005-01-13 | 2005-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-07-14 | 2009-01-13 | 2009-07-15 | $7700.00 | Window Closed / Lapsed |