Liquid crystal display element

Details Liquid crystal display element Liquid crystal display element

2005-04-19

2005-04-19

Pyon, Harold (Department: 1772)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

Alignment layer of specified composition

C428S001200, C349S123000

Reexamination Certificate

active

06881455

ABSTRACT:
A liquid crystal display element includes array and counter substrates provided opposite to each other. The array substrate is covered with a color filter layer. Pixel electrodes are provided in a matrix form on the color filter layer. The surface of the counter substrate is provided with a common electrode. Alignment films are coated on the pixel and common electrodes. A gap defined between the array and counter substrates are filled with a liquid crystal material to form a liquid crystal layer. The alignment films are processed to have surface energy within the range from 51 to 60 dyn/cm. Such surface energy substantially prevents an image-sticking phenomenon of the liquid crystal display element caused by impurities dissolved into a liquid crystal layer and white or black turbid spots caused by hydrolysis of the alignment films by moisture in the liquid crystal layer.

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patent: 5608033 (1997-03-01), Nihira et al.
patent: 5629056 (1997-05-01), Koike et al.
patent: 11-119225 (1999-04-01), None

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