Liquid crystal display device

Details Liquid crystal display device Liquid crystal display device

2007-07-17

2007-07-17

Ton, Toan (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S138000

Reexamination Certificate

active

10629559

ABSTRACT:
In a liquid crystal display device the reflection of light from a transmissive region is reduced, the contrast of images is enhanced and a display of inverted images is suppressed. The liquid crystal display device includes a first background film made of silicon nitride and a second background film made of silicon oxide over a glass substrate, and thin film transistors and light transmissive pixel portions are formed over the second background film. Each thin film transistor is constituted of a polysilicon film, a gate electrode, a drain electrode and a source electrode, while a gate insulation film, an interlayer insulation film and an organic film are formed over the pixel portion. Further, in the liquid crystal display device external light is reflected, wherein by forming the first background film thicker than the second background film, the inversion of images of a transmissive type liquid crystal panel can be suppressed.

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