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EP0466377A2
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EP
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Liquid crystal display for displaying half-tone images
Assignee: International Business Machines Corp
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Filing: 1991-07-01
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Granted: —
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Expires: 2011-07-01
Abstract
Abstract A liquid crystal display comprises picture elements each including a plurality of pixel electrodes (10,12,11,13) of different sizes. Each pixel electrode (10,12,11,13) is connected to a thin film transistor (20,21,22,23). To reduce flicker when displaying a half tone image, each thin film transistor (20,21,22,23) comprises a channel whose width is a function of the size of the corresponding pixel electrode (10,11,12,13). Preferably each thin film transistor (20,21,22,23) comprises a channel whose width is proportional to the size of the corresponding pixel electrode (10,11,12,13). <IMAGE>
Inventors
- 👤 Hiroshi Suzuki
- 👤 Hidefmi Yamaguchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 15:35
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/20; G09G3/34; G09G3/36; G09G3/3607; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/136; G02F1/1362; G02F1/1368; G02F1/1333; G02F1/1343; G02F1/134309; G02F1/134345; G02F1/136213; G09G3/2007; G09G3/2074
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
67 words
A liquid crystal display comprising: a plurality of picture elements each including a plurality of pixel electrodes (10,12,11,13) of different sizes, and a plurality of thin film transistors (20,21,22,23) each connected to a corresponding one of the pixel electrodes (10,12,11,13); characterised in that each of the thin film transistors (20,21,22,23) comprises a channel whose width is a function of the size of the corresponding pixel electrode (10,11,12,13).
Claim 2
Dependent Claim
33 words
A liquid crystal display as claimed in claim 1 wherein each of the thin film transistors (20,21,22,23) comprises a channel whose width is proportional to the size of the corresponding pixel electrode (10,11,12,13).
Claim 3
Dependent Claim
34 words
A liquid crystal display as claimed in claim 1 or claim 2 wherein each picture element comprises a plurality of compensation capacitors (Cs8,Cs4,Cs2,Cs1) each connected to a corresponding one of the pixel electrodes (10,11,12,13).
References Cited (Backward Citations)
No citation records indexed.
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