Private display device, decrypted viewing device and display system
AssigneeShenzhen China Star Optoelectronics Technology Co., Ltd.
InventorBo Hai
Life of this patent
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Abstract
The present disclosure discloses a private display device, which comprises: a color film substrate and an array substrate provided to a box; a liquid crystal provided between the color film substrate and the array substrate; a first polarizing film provided on surface of the color film substrate facing away from the array substrate; a first quarter wave plate provided on the surface of the array substrate facing away from the color film substrate; wherein the direction of the absorption axis of the first polarizing film is different from the direction of the optical axis of the first quarter wave plate. The present disclosure also discloses a decrypted viewing device and a display system.
Claims11
A private display device, comprising:
- a color film substrate and an array substrate provided to form a box;
- a liquid crystal provided between the color film substrate and the array substrate;
- a first polarizing film provided on a surface of the color film substrate facing away from the array substrate;
- a first quarter wave plate provided on a surface of the array substrate facing away from the color film substrate;
- wherein a direction of an absorption axis of the first polarizing film is different from a direction of an optical axis of the first quarter wave plate;
- wherein the first quarter wave plate has a surface that is facing away from the color film substrate and exposed to the outside and a protective film is attached directly to the surface of the quarter wave plate that is exposed to the outside.
A display system, comprising a private display device and a decrypted viewing device relatively provided;
- wherein the private display device comprises:
- a color film substrate and an array substrate provided to form a box;
- a liquid crystal provided between the color film substrate and the array substrate;
- a first polarizing film provided on a surface of the color film substrate facing away from the array substrate;
- a first quarter wave plate provided on a surface of the array substrate facing away from the color film substrate;
- wherein a direction of an absorption axis of the first polarizing film is different from a direction of an optical axis of the first quarter wave plate;
- wherein the first quarter wave plate has a surface that is facing away from the color film substrate and exposed to the outside and a protective film is attached directly to the surface of the quarter wave plate that is exposed to the outside;
- wherein said decrypted viewing device is positionable away from and separate from the private device for viewing the private display device, and the decrypted viewing device comprises:
- a second quarter wave plate facing the first quarter wave plate, wherein a direction of an optical axis of the second quarter wave plate is the same as the direction of the optical axis of the first quarter wave plate;
- and
- a second polarizing film provided on a surface of the second quarter wave plate facing away from the first quarter wave plate, wherein a direction of an absorption axis of the second polarizing film is the same as the direction of the absorption axis of the first polarizing film.
Dependencies are inferred from the claim text.