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US 5,671,030 AGranted
Liquid crystal panel having a color filter with passivation and insulating layers extending to the seal
AssigneeCanon Kabushiki Kaisha
InventorsKenji Ohnuma, Masaaki Suzuki, Keishi Danjoh
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Abstract
There is disclosed a ferroelectric liquid crystal color-display panel capable of preventing defects in liquid crystal orientation, resulting from the glass substrate bending, particularly in the end portion of effective display area, by the use of a gap-retaining material, such as silica or alumina beads, in the sealant of the panel, wherein the diameter T of the gap retaining material satisfies a relation: ##EQU1## in which t.sub.1 is the cell gap in the display area and t.sub.2 is the thickness of color filter provided in the display area.
Claims4
A color liquid crystal panel comprising:
- a first substrate having a color filter, a passivation layer provided on said color filter, a first transparent electrode provided on said passivation layer, and an insulation layer provided on said transparent electrode;
- a second substrate having a second transparent electrode;
- a liquid crystal material located in a space formed between said first and second substrates;
- and
- a seal for sealing said space in a peripheral area of said first and second substrates,
- wherein said insulation layer prevents short-circuiting between said first and second transparent electrodes, and
- said passivation layer and said insulation layer extend to said peripheral area in which said seal is located.
4 more elements
Dependencies are inferred from the claim text.