Active matrix display device and electronic appliance using...

Details Active matrix display device and electronic appliance using... Active matrix display device and electronic appliance using...

2008-07-08

2010-10-05

Pak, Sung H (Department: 2874)

Liquid crystal cells, elements and systems

Particular excitation of liquid crystal

Electrical excitation of liquid crystal

Reexamination Certificate

active

07808566

ABSTRACT:
It is an object of the present invention to provide an active matrix display device in which reliability of transistors in a pixel can be improved by reducing a voltage applied to the transistors. The active matrix display device includes a capacitor of a pixel provided for each pixel, storage capacitors provided for each pixel, a transistor in a first group, a transistor in a second group, and a data line. When the transistor in the first group is off and the transistor in the second group is on, the storage capacitors which store charge in accordance with a potential difference of a potential of the data line and a reference potential are connected in series and a voltage obtained by raising the potential difference is applied to the capacitor of the pixel and therefore, the voltage applied to the transistors can be reduced.

REFERENCES:
patent: 6724359 (2004-04-01), Yamamoto et al.
patent: 6936845 (2005-08-01), Kim et al.
patent: 7518688 (2009-04-01), Chen et al.
patent: 2002/0084969 (2002-07-01), Ozawa
patent: 04-145490 (1992-05-01), None
patent: 11-039855 (1999-02-01), None
patent: 11-328984 (1999-11-01), None
patent: 2002-196358 (2002-07-01), None

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