Control device of a liquid crystal display device

Details Control device of a liquid crystal display device Control device of a liquid crystal display device

2005-03-08

2005-03-08

Shankar, Vijay (Department: 2673)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S089000

Reexamination Certificate

active

06864868

ABSTRACT:
A control device of an IPS-mode or other mode liquid crystal display device for increasing response speed without diminishing elastic torque of the liquid crystal. Image signals are supplied in such a manner that one display pattern is displayed in first and second, two consecutive frames. When to increase voltage of the image signal for changing luminance, voltage at the first frame being set higher than a voltage value of gradation scale corresponding to a given luminance; and voltage at the second frame being set to a voltage value of gradation scale corresponding to the given luminance. Meanwhile, when to decrease voltage of the image signal for changing luminance, voltage at the first frame being set lower than a voltage value of gradation scale corresponding to a given luminance; and voltage at the second frame being set to a voltage value of gradation scale corresponding to the given luminance.

REFERENCES:
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patent: 6166714 (2000-12-01), Kishimoto
patent: 6313818 (2001-11-01), Kondo et al.
patent: 6337726 (2002-01-01), Kawano et al.
patent: 20020024481 (2002-02-01), Kawabe et al.
patent: 20020063828 (2002-05-01), Negoro et al.

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