Method of forming alignment layer in liquid crystal display...

Details Method of forming alignment layer in liquid crystal display... Method of forming alignment layer in liquid crystal display...

2005-12-28

2009-11-10

Visconti, Geraldina (Department: 1795)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

C428S001200, C428S001300, C430S020000, C252S299010

Reexamination Certificate

active

07615261

ABSTRACT:
An LCD with an improved image quality and a method of fabricating the same are provided. After a rubbing process as a primary alignment process is performed on an alignment layer, a pre-treatment is performed on the alignment layer before a light irradiation as a secondary alignment process. Thus, the light leakage at a stepped portion may be prevented and the contrast ratio can be improved. Consequently, a high quality image may be obtained and the reliability of products can also be enhanced. After a thermal treatment as the pre-treatment or during the thermal treatment, a light irradiation as a secondary alignment process is performed, or the light irradiation as the secondary alignment process is performed under an oxygen atmosphere, thereby enhancing the alignment process efficiency during the light irradiation. Further, a non-polarized light may be irradiated on the rubbed alignment layer during the light irradiation. Therefore, a high quality image may be obtained without any separate polarizers, thereby simplifying the manufacturing process and reducing the manufacturing cost.

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