Alignment film and LCD made of the same

Details Alignment film and LCD made of the same Alignment film and LCD made of the same

2007-05-01

2007-05-01

Wu, Shean C (Department: 1756)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

C428S001200, C428S001250, C428S001260, C428S001530, C349S123000, C525S928000

Reexamination Certificate

active

11020685

ABSTRACT:
An alignment film for avoiding the degradation of the charge holding rate of a LCD, due to ionic impurity of the liquid crystal materials, and the LCD that is made of the same is disclosed herein.The alignment film10includes derivatives of polyimides or polyamides and low molecular thermosetting resins having a viscosity of 1–3000 Poise within the temperature of 25° C. Through the use of the alignment film10produced by the thermosetting resin monomers, the ionic impurity is prevented from contact with the pixel electrode16. The performance of the LCD with the alignment film is improved during the test of reliability, even though a liquid crystal material with high dielectric anisotropy is used.

REFERENCES:
patent: 5866034 (1999-02-01), Han
patent: 6106906 (2000-08-01), Matsuda et al.
patent: 2004/0066480 (2004-04-01), Yoshida et al.
patent: 2006/0024452 (2006-02-01), Kondo et al.
patent: 10081821 (1998-03-01), None

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