Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1994-11-03
1995-10-10
Weldon, Ulysses
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345103, 359 59, G09G 336
Patent
active
054574749
ABSTRACT:
An active-matrix type LCD includes a plurality of gate bus lines and a plurality of drain bus lines each intersecting with a corresponding gate bus line at right angle, and a liquid crystal provided between a substrate on which a TFT is formed at the intersection of the gate bus line and drain bus line, and a substrate on which a common electrode is formed. The active-matrix type LCD further includes a device for producing a compensation signal to compensate a source electrode voltage of the TFT for each divided section of the display area of the active-matrix type LCD, the each divided section being obtained by dividing the display area into a plurality of sections for exposure to light when a pattern of the electrode is formed, and an adder circuit for adding the compensation signal and associated image signal, and producing the added signal.
REFERENCES:
patent: 5285302 (1994-02-01), Wu
Masahiko Akiyama, Shuichi Uchikoga, Takeo Sakakubo, Takashi Koizumi, Kouji Suzuki, "Effects of Source/Drain Electrodes Overlapping on the Stopper-Insulator in a Self-Aligned TFT-LCD," Toshiba Electron Device Engineering Laboratory, Yokohama, Japan, SID 91 Digest, Section 4.1, pp. 10-13.
Kikuo Ono, Takeshi Tanaka, Nobutake Konishi, "TFT-LCD Optical Characteristics Simulator CLIS," Kitachi Research Laboratory, Hitachi, Ltd., Ikaraki, Japan, SID 91 Digest, Section 4.4, pp. 22-25.
Luu Matthew
NEC Corporation
Weldon Ulysses
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