Computer graphics processing and selective visual display system – Display driving control circuitry
Reexamination Certificate
2004-12-21
2009-11-03
Eisen, Alexander (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
C365S018000, C365S018000
Reexamination Certificate
active
07612768
ABSTRACT:
A display driver including: a scan driver and a data driver which drive a display panel; a one-time PROM (OTP) circuit which includes a plurality of OTP cells; a control circuit; and a control register. A display characteristic parameter corresponding to display characteristics of the display panel is written into the OTP circuit during initialization. The control register stores the display characteristic parameter supplied from the OTP circuit. Each of the OTP cells includes a floating-gate transistor which has a floating gate. The control circuit performs refresh operation at a predetermined timing set in first half of a non-display period of the display panel, the refresh operation including reading the display characteristic parameter from the OTP circuit and rewriting the display characteristic parameter into the control register.
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Almeida Cory A
Eisen Alexander
Oliff & Berridg,e PLC
Seiko Epson Corporation
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