Apparatus and method for driving a lamp of a liquid crystal...

Details Apparatus and method for driving a lamp of a liquid crystal... Apparatus and method for driving a lamp of a liquid crystal...

2006-06-20

2010-11-23

Shalwala, Bipin (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C349S062000, C362S097200

Reexamination Certificate

active

07839377

ABSTRACT:
This invention relates to an apparatus and method for driving a lamp of a liquid crystal display device that applies a scanning backlight driving to an external electrode fluorescent lamp.A lamp driving apparatus of a liquid crystal display device, including: a plurality of lamps irradiating light to a liquid crystal display panel and including external electrodes; a common electrode connected to the external electrodes that supply a tube current to the lamps; auxiliary electrodes that are movable; and an auxiliary electrode driving part sequentially connecting the auxiliary electrodes with and disconnecting the auxiliary electrode from the external electrodes in accordance with a scan direction of data to be displayed on the liquid crystal display panel.

REFERENCES:
patent: 2003/0234762 (2003-12-01), Nakatsuka et al.
patent: 2005/0111237 (2005-05-01), Moon et al.
patent: 2006/0279516 (2006-12-01), Yun

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