Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1996-10-16
1998-08-04
Saras, Steven J.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 98, 345 99, G09G 336
Patent
active
057900906
ABSTRACT:
An active matrix liquid crystal display (AMLCD) and driving method is disclosed. The AMLCD has matrix-arranged pixel assemblies each having display electrodes. A gate line for carrying gate line pulses is connected to a control port of a row of semiconductor devices, which may be thin film transistors (TFTs). Each TFT has an output port connected to the display electrodes. In addition, a data line is connected to an input port of a column of the TFTs. A bootstrap line is capacitively connected to the display electrodes of adjacent rows. This reduce the number of bootstrap lines to half the number of gate and data lines. A bootstrap pulse timing and generating circuit is connected to the bootstrap line to provide a bootstrap pulse that shifts voltages on the display electrodes in only one direction. The bootstrap pulse has a first edge of a first polarity occurring before or during gate pulses carried on a gate line, and a second edge of a second polarity occurring after the gate line pulses.
REFERENCES:
patent: 4621260 (1986-11-01), Suzuki et al.
patent: 4842371 (1989-06-01), Yasuda et al.
patent: 5095304 (1992-03-01), Young
patent: 5151805 (1992-09-01), Takeda et al.
patent: 5185601 (1993-02-01), Takeda et al.
patent: 5247289 (1993-09-01), Matsueda
patent: 5568163 (1996-10-01), Okumura
Libsch Frank Robert
Schlig Eugene Stewart
International Business Machines - Corporation
Lewis David L.
Saras Steven J.
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