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Proceedings Paper

Preparation of glass microspheres for LCD
Author(s): Zhifeng Cao; Xiyan Zhang; Zhiqiang Zhao; Li Li
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Paper 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.

Paper Details

Date Published: 5 August 1998
PDF: 4 pages
Proc. SPIE 3557, Current Developments in Optical Elements and Manufacturing, (5 August 1998); doi: 10.1117/12.318271
Show Author Affiliations
Zhifeng Cao, Changchun Institute of Optics and Fine Mechanics (China)
Xiyan Zhang, Changchun Institute of Optics and Fine Mechanics (China)
Zhiqiang Zhao, Changchun Institute of Optics and Fine Mechanics (China)
Li Li, Changchun Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 3557:
Current Developments in Optical Elements and Manufacturing
Qiming Xin; Robert E. Parks, Editor(s)

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