Image signal display apparatus

Details Image signal display apparatus Image signal display apparatus

2005-11-18

2010-06-15

Shankar, Vijay (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S076000, C345S077000, C345S102000

Reexamination Certificate

active

07737930

ABSTRACT:
A liquid crystal display apparatus that includes a liquid crystal display panel having a liquid crystal layer held between a pair of substrates, a light source whose brightness is controllable, and a normalization processing circuit that converts an image signal to a normalized signal and to a normalization coefficient. In addition, the display apparatus includes an LCD driving circuit that converts the normalized signal to an LCD driving signal for driving the liquid crystal display panel, and a light source driving circuit that converts the normalization coefficient to a light source driving signal for driving the light source. The normalization coefficient is used to set pixel values in a blanking interval of a display screen, and the normalized signal is used to set pixel values in a display area of the display screen.

REFERENCES:
patent: 5424780 (1995-06-01), Cooper
patent: 6278437 (2001-08-01), Iga et al.
patent: 2005/0062691 (2005-03-01), Tamura et al.
patent: 2008/0238843 (2008-10-01), Yatabe
patent: 3430998 (2003-05-01), None

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