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US 6,646,698 B2Granted
Liquid crystal display having a plurality of polarizing plates having the same polarization degree
AssigneeFujitsu Limited
InventorEiichi Mori
Life of this patent
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Abstract
A liquid crystal display including a liquid crystal layer having first and second surfaces opposite to each other; a first polarizing plate opposed to the first surface of the liquid crystal layer and having a first polarization axis; and a second polarizing plate opposed to the second surface of the liquid crystal layer and having a second polarization axis perpendicular to the first polarization axis and given polarization degree. The liquid crystal display further includes a third polarizing plate opposed to the first polarizing plate and having the second polarization axis and the given polarization degree.
Claims5
A liquid crystal display comprising:
- a liquid crystal layer having first and second surfaces opposite to each other;
- a first polarizing plate opposed to said first surface of said liquid crystal layer and having a first polarization axis;
- a second polarizing plate opposed to said second surface of said liquid crystal layer and having a second polarization axis perpendicular to said first polarization axis and a given polarization degree;
- and
- a third polarizing plate opposed to said second polarizing plate and having said second polarization axis and said given polarization degree,
- wherein said third polarizing plate is bonded to said second polarizing plate to form a polarizing plate unit, and
- wherein said polarizing plate unit comprises a first adhesive layer opposed to said liquid crystal layer, a first protective layer formed on said first adhesive layer, a first polarizer formed on said first protective layer, a second protective layer formed on said first polarizer, a second adhesive layer formed on said second protective layer, a third protective layer formed on said second adhesive layer, a second polarizer formed on said third protective layer, a fourth protective layer formed on said second polarizer, and a first protective film formed on said fourth protective layer.
4 more elements
A liquid crystal display comprising:
- a liquid crystal layer having first and second surfaces opposite to each other;
- a first polarizing plate opposed to said first surface of said liquid crystal layer and having a first polarization axis;
- a second polarizing plate opposed to said second surface of said liquid crystal layer and having a second polarization axis perpendicular to said first polarization axis and a given polarization degree;
- a third polarizing plate opposed to said second polarizing plate and having said second polarization axis and said given polarization degree;
- and
- a touch panel interposed between said second polarizing plate and said third polarizing plate,
- wherein said touch panel is bonded to said second polarizing plate;
- and
- wherein said third polarizing plate is bonded to said touch panel.
6 more elements
A liquid crystal display comprising:
- a liquid crystal panel having a pair of transparent substrates and a liquid crystal layer sealed between said transparent substrates;
- a first polarizing plate opposed to one of said transparent substrates and having a first polarization axis;
- a second polarizing plate opposed to the other transparent substrate and having a second polarization axis perpendicular to said first polarization axis and a given polarization degree;
- and
- a third polarizing plate opposed to said second polarizing elate and having said second polarization axis and said given polarization degree,
- wherein said third polarizing elate is bonded to said second polarizing plate to form a polarizing plate unit, and
- wherein said polarizing plate unit comprises a first adhesive layer opposed to said liquid crystal panel, a first protective layer formed on said first adhesive layer, a first polarizer formed on said first protective layer, a second protective layer formed on said first polarizer, a second adhesive layer formed on said second protective layer, a third protective layer formed on said second adhesive layer, a second polarizer formed on said third protective layer, a fourth protective layer formed on said second polarizer, and a protective film formed on said fourth protective layer.
4 more elements
A liquid crystal display comprising:
- a liquid crystal panel having a pair of transparent substrates and a liquid crystal layer sealed between said transparent substrates;
- a first polarizing plate opposed to one of said transparent substrates and having a first polarization axis;
- a second polarizing plate opposed to the other transparent substrate and having a second polarization axis perpendicular to said first polarization axis and a given polarization degree;
- a third polarizing plate opposed to said second polarizing plate and having said second polarization axis and said given polarization degree;
- and
- a touch panel interposed between said second polarizing plate and said third polarizing plate,
- wherein said second polarizing plate is bonded to said liquid crystal panel;
- wherein said touch panel is bonded to said second polarizing plate;
- and
- wherein said third polarizing plate is bonded to said touch panel.
7 more elements
Dependencies are inferred from the claim text.