Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1999-07-21
2000-08-15
Hjerpe, Richard A.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 60, 345147, 345148, 345213, G09G 328
Patent
active
061043621
ABSTRACT:
A panel display has a display panel including a plurality of cells to be selectively discharged to an address driver for setting the plurality of cells to states represented by display data. The panel display also has a display glowing driver for enabling the plurality of cells to glow according to the set states. One frame during which one screen is displayed has a plurality of sub-frames and glowing periods within the sub-frames, during which the display cells are enabled to glow by the display glowing driver. The said sub-frames are weighted in order to achieve gray-scale display. The display panel also has a display load calculating circuit for calculating a display load to be imposed on a whole display surface during each sub-frame. In addition, a corrected period calculating circuit calculates a corrected period of a glowing period, during which the display cells are enabled to glow by the display glowing driver according to display loads to be imposed during each sub-frame. This is calculated by the display load calculating circuit so that brightness attained by the display cells during respective sub-frames will be maintained at a given ratio.
REFERENCES:
patent: 5343215 (1994-08-01), Tanaka
patent: 5420602 (1995-05-01), Kanazawa
patent: 5541618 (1996-07-01), Shinoda
Ishida Katsuhiro
Kuriyama Hirohito
Tajima Masaya
Ueda Toshio
Yamamoto Akira
Fujitsu Limited
Hjerpe Richard A.
Tran Henry N.
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