US5223962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid-crystal color display with parallelogram-shaped pixels
Assignee: Sharp Corp
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Filing: 1991-11-06
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Granted: 1993-06-29
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Expires: 2011-11-06
Abstract
Abstract Disclosed is a liquid-crystal color display having a pair of light-transmitting substrates disposed opposite each other sandwiching a liquid crystal layer between them and color selecting members and a light blocking member provided on one of the pair of light-transmitting substrates, wherein the shape of each pixel defined by the color selecting members and the light blocking member is a parallelogram with all four angles other than 90°. Accordingly, the liquid-crystal color display of the invention is capable of displaying sloping letters such as italics and other sloping patterns as naturally sloping patterns easy to recognize.
Inventors
- 👤 Mitsuaki Shioji
- 👤 Kunihiko Ito
- 👤 Hiroshi Fukutani
- 👤 Kazuhiko Akimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:07
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133514; G02F1/1343; G02F1/134309; G02F1/133512
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
180 words
A liquid-crystal color display comprising: a plurality of color selecting members provided for transmitting light of specific colors respectively and formed over one entire surface of one of a pair of light-transmitting substrates disposed opposite each other sandwiching a liquid crystal layer between them, the one entire surface being on the side facing the liquid crystal layer; a light blocking member interposed between the adjacent color selecting members; and a pair of transparent conductive films which are respectively provided in the display areas on the sides facing the liquid crystal layer of the pair of light-transmitting substrates and which, in response to electrical signals, alter the molecular alignment in the liquid crystal layer in the portion thereof facing the specific color selecting member selected in accordance with the color to be displayed in the display area, the liquid-crystal color display being characterized in that the shape of each pixel defined by the color selecting members and the light blocking member is a parallelogram with all four angles other than 90° and in which all pixels incline at the same angle.
Claim 2
Dependent Claim
180 words
A liquid-crystal color display comprising: a plurality of color selecting members provided for transmitting light of specific colors respectively and formed over one entire surface of one of a pair of light-transmitting substrates disposed opposite each other sandwiching a liquid crystal layer between them, the one entire surface being on the side facing the liquid crystal layer; a light blocking member interposed between the adjacent color selecting members; and a pair of transparent conductive films which are respectively provided in the display areas on the sides facing the liquid crystal layer of the pair of light-transmitting substrates and which, in response to electrical signals, alter the molecular alignment in the liquid crystal layer in the portion thereof facing the specific color selecting member selected in accordance with the color to be displayed in the display area, the liquid-crystal color display being characterized in that the shape of each pixel defined by the color selecting members and the light blocking member is a parallelogram with all four angles other than 90° and in which all pixels incline at the same angle.
Claim 3
Dependent Claim
62 words
A liquid-crystal color display as set forth in claim 1, wherein: the pair of light-transmitting substrates disposed opposite each other with the liquid crystal layer sandwiched between them are provided with segment side and common side transparent electrodes respectively, the color selecting members and the light blocking member being provided on the substrate on which the segment side transparent electrodes are formed.
Claim 4
Dependent Claim
62 words
A liquid-crystal color display as set forth in claim 1, wherein: the pair of light-transmitting substrates disposed opposite each other with the liquid crystal layer sandwiched between them are provided with segment side and common side transparent electrodes respectively, the color selecting members and the light blocking member being provided on the substrate on which the common side transparent electrodes are formed.
Claim 5
Dependent Claim
77 words
A liquid-crystal color display as set forth in claim 1, wherein: the color selecting members are color filters of different colors, formed in an equispaced stripe pattern and arranged in a prescribed order; and the light blocking member is a mask formed in a stripe pattern interposing between the adjacent color filters, the mask pitch being equal to the color filter pitch and the sloping angle of the mask being equal to that of the color filters.
Claim 6
Dependent Claim
76 words
A liquid-crystal color display as set forth in claim 1, wherein: the color selecting members are color filters of different colors, formed in an equispaced stripe pattern and arranged in a prescribed order; and the light blocking member is an oblique lattice-shaped mask formed from a mask formed in a stripe pattern interposing between the color filters and a mask formed with a prescribed pitch and having the same width as that of the stripe-patterned mask.
Claim 7
Dependent Claim
25 words
A liquid-crystal color display as set forth in claim 1, wherein: the color selecting members are color filters of three colors, red, green, and blue.
Claim 8
Dependent Claim
43 words
A liquid-crystal color display as set forth in claim 1, wherein: the shape of each pixel defined by the color selecting members and the light blocking member is a parallelogram with all four angles oblique by 3° to 15° with respect to 90°.
Claim 9
Dependent Claim
41 words
A liquid-crystal color display as set forth in claim 7, wherein: the shape of each pixel defined by the color selecting members and the light blocking member is a parallelogram with all four angles oblique by 5° with respect to 90°.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-06-28 | 1996-12-28 | 1997-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-28 | 2000-12-28 | 2001-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-28 | 2004-12-28 | 2005-06-29 | $7700.00 | Window Closed / Lapsed |