Fabrication method of liquid crystal display panel
AssigneeNEC Corporation
InventorTakeshi Sasaki
Life of this patent
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Abstract
In a fabrication method of an LCD panel having a display area on which display area spacers 6 are arranged and employing the liquid crystal falling-drop method for filling the panel with liquid crystal, the display area spacer 6 is formed of an elastic material such as resin and has an initial size in a cell gap direction larger than an appropriate cell gap d0 necessary to provide an appropriate liquid crystal display. An excess deformation of the panel to make the cell gap smaller than the appropriate cell gap d0 after the liquid crystal display panel is put under atmospheric pressure is prevented by compressive stress of the display area spacers 6.
Claims6
A fabrication method of a liquid crystal display panel, comprising the steps of:
- forming a seal member on at least one of a pair of opposing transparent substrates such that said seal member surrounds a display area of said liquid crystal display panel;
- arranging first spacers on said display area on said substrate, said first spacer having an initial size in a cell gap direction larger than an appropriate cell gap necessary to perform an appropriate liquid crystal display;
- dropping liquid crystal onto an area surrounded by said seal member on one of said transparent substrates;
- forming a panel by sticking one of said transparent substrates on the other with said seal member in a vacuum chamber;
- putting said panel under atmospheric pressure to deform said first spacers through a deformation of said panel;
- and
- hardening said seal member after an inner volume of said panel becomes equal to a volume of said liquid crystal.
Dependencies are inferred from the claim text.