Preparation of glass microspheres for LCD

Zhifeng Cao; Xiyan Zhang; Zhiqiang Zhao; Li Li

doi:10.1117/12.318271

5 August 1998 Preparation of glass microspheres for LCD

Zhifeng Cao, Xiyan Zhang, Zhiqiang Zhao, Li Li

Proceedings Volume 3557, Current Developments in Optical Elements and Manufacturing; (1998) https://doi.org/10.1117/12.318271
Event: Photonics China '98, 1998, Beijing, China

Abstract

The spacers in liquid crystal display box often use plastic microspheres, glass fiber and glass microspheres. Plastic microspheres are easy aging and become brittle, glass fiber is easy overlapping and add the thickness of box, so it is important to research glass microspheres with high property. The chemical stability must be good for glass microspheres used as spacers, and conductive alkali metal ions can not present when it is using. The size of particles must be uniform. The author studied ZnO-B₂O₃-SiO₂ glass without alkali and its chemical stability is excellent. The microspheres was obtained by the powder technology, and a gasification equipment was used to insure the high dispersion of particle. A negative pressure equipment was adopted in the collection equipment. The glass microspheres with elliptically below 3% were prepared. We select the spacers material used in liquid crystal, its size is about 7 +/- 0.05 mm by screening and flotation. The glass spheres without alkali and having high chemical stability.

Citation Download Citation

Zhifeng Cao, Xiyan Zhang, Zhiqiang Zhao, and Li Li "Preparation of glass microspheres for LCD", Proc. SPIE 3557, Current Developments in Optical Elements and Manufacturing, (5 August 1998); https://doi.org/10.1117/12.318271

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