Method of making liquid crystal display elements using ceramic filter to determine spacer size
AssigneeGoldstar Co., Ltd.
InventorTaek S. Kim
Life of this patent
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Abstract
A ceramic filter for using in making liquid crystal display elements includes a plurality of rectangular apertures adapted to permit glass spacers having the size no more than a predetermined size to pass therethrough and a method thereof, capable of selecting easily glass spacers of a uniform size according to the use of the ceramic filter and of preventing glass spacers from lumping together by mixing them in a diluted solution and then pouring a liquid crystal orientation solution in the mixture, and of providing a uniform cell gap and a uniform ground color. It is possible to avoid entering of ionic materials by virtue of the use of ceramic filter, thereby providing a uniform cell gap.
Claims8
A ceramic filter for using in making liquid crystal display elements comprising:
- a plurality of rectangular apertures adapted to permit glass spacers having the size no more than a predetermined size to pass therethrough.
A method of making liquid crystal display elements comprising the steps of:
- preparing a glass spacer mixture by mixing glass spacers in a dilution solution,
- preparing a liquid crystal orientation solution mixture by adding a liquid crystal orientation solution in said glass spacer mixture,
- selecting glass spacers having a predetermined size by passing the liquid crystal orientation solution mixture through a ceramic filter having a plurality of rectangular apertures, and
- coating the liquid crystal orientation solution mixture containing selected glass spacers on a glass substrate.
Dependencies are inferred from the claim text.