Active matrix type display apparatus, active matrix type...

Details Active matrix type display apparatus, active matrix type... Active matrix type display apparatus, active matrix type...

2002-05-23

2008-10-07

Dinh, Duc Q (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S076000, C315S169300

Reexamination Certificate

active

07432889

ABSTRACT:
An active matrix type display apparatus of the present invention includes pixel circuits each having an electrooptic device that changes brightness thereof according to a current flowing therein and driving said electrooptic device on the basis of brightness data supplied via a data line, and a current type pixel driving circuit for supplying each of said pixel circuits with a writing current that temporally increases in magnitude of a current value thereof within a cycle of writing of said brightness data. In the matrix type display apparatus of the present invention, the magnitude of the current value of the writing current is temporally increased within the writing cycle, whereby the writing current is limited to a low level (or zero) in an early stage of the writing cycle. Thus, the average value of the writing current is reduced.

REFERENCES:
patent: 5886475 (1999-03-01), Horiuchi et al.
patent: 6023259 (2000-02-01), Howard et al.
patent: 6809710 (2004-10-01), Prache et al.
patent: 1 061 497 (2000-12-01), None
patent: 2001-42822 (2001-02-01), None

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