EP0435391A2
Expired / Lapsed
EP
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Color display apparatus
Assignee: Koninklijke Philips NV
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Filing: 1990-12-18
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Granted: —
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Expires: 2010-12-18
Abstract
Abstract By storing the color information of characters to be displayed in three planes (4R, 4C, 4B) in a character generator 15 this information can be used in a display controllor (21) in such a way that high-quality characters are displayed.
Inventors
- 👤 Yasushi Tanigaki
- 👤 Yoshikazu Satoh
- 👤 Yoshiharu Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 13:47
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/66; G; G09; G09G; G09G5/00; G09G5/22; G09G5/24; G09G3/00; G09G3/20; G09G3/2003; G09G2340/00; G09G2340/04; G09G2340/0457; G09G3/34; G09G3/36; G09G3/3607
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A color display apparatus comprising a color display panel on which a plurality of color dots of the three primary colors are formed in a predetermined order, a memory for storing bit information corresponding to dot-matrix patterns representative of characters, and a display control section for activating the color dots on the color display panel in accordance with the bit information read from the memory to thereby display characters characterized in that the memory is provided with at least three storage areas corresponding respectively to the color-dot groups of the three primary colors, in each storage area bit information corresponding to dot-matrix patterns representative respectively of all kinds of characters to be displayed being stored, the display control section activating the color dots of the three primary colors on the color display panel based respectively on three bit-information groups which are read respectively from said three storage areas and correspond to a character to be displayed, whereby the last-mentioned character is displayed on the color display panel.
Claim 2
Dependent Claim
19 words
A color display apparatus according to Claim 1, characterized in that the display panel comprises a liquid crystal device.
References Cited (Backward Citations)
No citation records indexed.
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