Single pixel driver for transflective LCD

Details Single pixel driver for transflective LCD Single pixel driver for transflective LCD

2006-08-08

2006-08-08

Shalwala, Bipin (Department: 2673)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S092000

Reexamination Certificate

active

07088326

ABSTRACT:
A single pixel driving circuit for a transflective LCD is disclosed. It uses different digital/analog (D/A) signal converters to control the gamma correction signals of the transmissive liquid crystal capacitor and the reflective liquid crystal capacitor to improve the display quality of the transflective LCD. The driving circuit contains a first transistor and a second transistor whose gates couple together to a scan line, a first signal converter coupled to the source of the first transistor via a first data line, and a second signal converter coupled to the source of the second transistor via a second data line. The drain of the first transistor is coupled to the transmissive liquid crystal capacitor. The drain of the second transistor is coupled to the reflective liquid crystal capacitor.

REFERENCES:
patent: 6414665 (2002-07-01), Libsch et al.
patent: 6421037 (2002-07-01), Chen
patent: 2002/0047822 (2002-04-01), Senda et al.
patent: 2003/0112213 (2003-06-01), Noguchi et al.
patent: 2004/0212556 (2004-10-01), Senda et al.

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