Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1995-04-18
1997-11-11
Hjerpe, Richard
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 94, 345208, 348792, G09G 336, H04N 314
Patent
active
056869363
ABSTRACT:
To restrict a potential oscillation in a video line caused by a high speed sampling rate, the active matrix display device is comprised of gate lines X in row, signal lines Y in column and liquid crystal pixels LC of matrix arranged at each of the crossing points of both lines. The V driver 1 scans in line sequence each of the gate lines X and selects the liquid crystal pixels LC in one line for every one horizontal period. The H driver 2 performs in sequence samplings of the video signal VSIG within one horizontal scanning period to each of the signal lines Y and performs a writing of the video signal VSIG by dot sequential scanning to the liquid crystal pixels LC in one selected line. The precharging means 4 supplies in sequence the predetermined precharging signal VPS prior to the sequential sampling of the video signal VSIG for each of the signal lines Y. This precharging means 4 is comprised of a plurality of switching elements PSW connected to an end part of each of the signal lines Y, and of the P driver 5 for supplying the precharge signal VPS to each of the signal lines Y through sequential controlling of ON or OFF of each of the switching elements PSW.
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Maekawa Toshikazu
Uchino Katsuhide
Farnandez Stoll Kara
Hjerpe Richard
Kananen Ronald P.
Sony Corporation
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