Liquid crystal display device
AssigneeCitizen Holdings Co., Ltd.
InventorsTakashi Akiyama, Sachiko Kawada, Tsutomu Ohara
Life of this patent
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Abstract
An object of the present invention is to provide a liquid crystal display apparatus that can eliminate brightness nonuniformity by suitably diffusing light emitted from a light source. The liquid crystal display apparatus includes a liquid crystal panel providing a liquid crystal between a pair of substrates, the liquid crystal panel having an effective display area for displaying information, a sealing member placed around the liquid crystal in order to seal the liquid crystal between the pair of substrates, a light source for illuminating the liquid crystal panel from an edge thereof, and light diffusing means, provided between the pair of substrates, for diffusing the light introduced from the light source into the effective display area.
Claims14
A liquid crystal display apparatus comprising:
- a liquid crystal panel including a liquid crystal between a pair of substrates, said liquid crystal panel having an effective display area for displaying information;
- a sealing member placed around said liquid crystal to seal said liquid crystal between said pair of substrates;
- and
- a light source for illuminating said liquid crystal panel from an edge thereof;
- wherein said sealing member has one part that is formed wider than another part of said sealing member, said one part having a light diffusing function for causing light introduced from said light source to diffuse into said effective display area.
A liquid display apparatus comprising:
- a liquid crystal panel including a liquid crystal between a pair of substrates, said liquid crystal panel having an effective display area for displaying information;
- a sealing member placed around said liquid crystal to seal said liquid crystal between said pair of substrates;
- a light source for illuminating said liquid crystal panel from an edge thereof;
- and
- a seal pattern, provided between said pair of substrates and between said light source and said sealing member, for causing light introduced from said light source through said sealing member to diffuse into said effective display area,
- wherein said seal pattern has a width that gradually increases from one part closest to said light source toward another part closest to said sealing member for causing light introduced from said light source to diffuse into said effective display area.
A liquid crystal display apparatus comprising:
- a liquid crystal panel including a liquid crystal between a pair of substrates, said liquid crystal panel having an effective display area for displaying information;
- a sealing member placed around said liquid crystal to seal said liquid crystal between said pair of substrates;
- a light source for illuminating said liquid crystal panel from an edge thereof;
- and
- light diffusing means, provided between said pair of substrates, for causing light introduced from said light source to diffuse into said effective display area;
- wherein said liquid crystal is a polymer-dispersed liquid crystal,
- said sealing member seals said liquid crystal so that said effective display area and a light diffusing area continuous with said effective display area can be formed,
- said light diffusing means is formed from said polymer-dispersed liquid crystal sealed with said light diffusing area, and
- said light diffusing area has a width that gradually increases from one part closest to said light source toward another part closest to said effective display area for causing light introduced from said light source to diffuse into said effective display area.
Dependencies are inferred from the claim text.