LCD for speeding initial bend state, driver and method thereof

Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix

Reexamination Certificate

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Details

C345S095000, C345S102000

Reexamination Certificate

active

07019728

ABSTRACT:
The present invention is directed to a liquid crystal display device and a method for driving the same for a fast transition into a bend state at initial operation such as immediately after power is inputted in a liquid display device with an OCB mode. According to one feature of the present invention, as power is inputted, a timing controller controls to output at least one of a gate voltage for a scan signal, a data voltage for a picture signal, and a driving voltage for a backlight by outputting a first switching signal to a switching unit, and controls to output one of an external bias voltage and a common electrode voltage by outputting a second switching signal to the switching unit so that fast transition into bend state of liquid crystal arranged in a LCD panel is accomplished. As a result, by applying a voltage of less level than that of the typical common electrode voltage to the LCD panel, as DC voltage of at least 10 volt to 20 volt is applicable to a common electrode, time for transition into bend state can be reduced at initial operation of the liquid crystal display device using the LCD panel with OCB mode.

REFERENCES:
patent: 4411496 (1983-10-01), Nonomura et al.
patent: 5774197 (1998-06-01), Nakamura
patent: 6005646 (1999-12-01), Nakamura et al.
patent: 6069620 (2000-05-01), Nakamura et al.
patent: 6476792 (2002-11-01), Hattori et al.
patent: 6671009 (2003-12-01), Hattori et al.
patent: 09090909 (1997-04-01), None

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