Computer graphics processing and selective visual display system – Display driving control circuitry – Intensity or color driving control
Reexamination Certificate
2006-08-29
2006-08-29
Shalwala, Bipin (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Intensity or color driving control
C345S087000
Reexamination Certificate
active
07098934
ABSTRACT:
A frequency converting section (101), which is included in a liquid crystal display apparatus, generates an output video signal by inserting one non-image signal, which is to be concurrently written into pixels on L (L is an integer equal to or greater than two) gate lines of the liquid crystal panel, for one line, between image signals composing an input video signal, for corresponding L lines, and adjusting a number of horizontal scanning periods of the output video signal in a vertical blanking period so that a number of horizontal scanning periods composing one frame period is (L+1)×(2N+1) (N is an integer). Thus, when anti-back-transition driving is performed using a liquid crystal panel in OCB mode, it is possible to minimize increase in a driving frequency, prevent irregularity of brightness caused by AC driving of the liquid crystal panel, and reduce a cost.
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Japanese Liquid Crystal Society Journal vol. 3, No. 2, p. 99 (17)-p. 106 (24), Apr. 25, 1999.
Arimoto Katsuyuki
Kobayashi Takahiro
Murao Tsugio
Ohta Yoshihito
Shalwala Bipin
Sheng Tom
Wenderoth , Lind & Ponack, L.L.P.
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