Display apparatus

Patent metadata

Field	Value
Publication number	US-9557598-B2
Application number	US-201414548653-A
Country	US
Kind code	B2
Filing date	Nov 20, 2014
Priority date	Jul 10, 2014
Publication date	Jan 31, 2017
Grant date	Jan 31, 2017

Abstract

An embodiment of the present invention discloses a display apparatus comprising: a display panel having a first side and a second side in opposite to the first side; a first polarizer arranged on the first side of the display panel; and a second polarizer arranged on either of the first side and the second side of the display panel, wherein an angle between a direction of a light transmission axis of the second polarizer and a direction of a light transmission axis of the first polarizer is adjustable.

First claim

What is claimed is:

1. A display apparatus comprising:
a display panel having a first side and a second side opposite the first side;
a first polarizer arranged on the first side of the display panel; and
a second polarizer arranged on either the first side or the second side of the display panel,
wherein an angle between a direction of a light transmission axis of the second polarizer and a direction of a light transmission axis of the first polarizer is adjustable;
wherein the first polarizer is fixed on the first side of the display panel, and wherein the angle between the direction of the light transmission axis of the second polarizer and the direction of the light transmission axis of the first polarizer is adjusted by rotation of the second polarizer, and the second polarizer comprises at least two rotating parts which are rotatable independently from each other, at least two of the rotating parts being located in the same plane and joined to each other, or at least two of the rotating parts being at least partially overlapped with each other, and
wherein the display apparatus further comprises a rotation adjusting member which comprises at least two adjusting parts and a rotation control module configured to control the rotation adjusting member, each of the adjusting parts being configured to adjust a rotation angle of each of the rotating parts.

2. The display apparatus according to claim 1 , wherein the first polarizer at least overlaps partially with the second polarizer in a direction perpendicular to a surface of the display panel.

3. The display apparatus according to claim 1 , wherein the second polarizer has a rotation angle of 0˜360 degrees.

4. The display apparatus according to claim 1 , wherein the second polarizer has a substantially circular shape.

5. The display apparatus according to claim 1 , further comprising a rotation adjusting member configured to adjust a rotation angle of the second polarizer.

6. The display apparatus according to claim 5 , further comprising a rotation control module configured to control the rotation adjusting member.

7. The display apparatus according to claim 1 , further comprising an outer frame configured to connect the second polarizer to the display panel mounted with the first polarizer, the outer frame having a cavity within which the rotation control module is located.

8. The display apparatus according to claim 7 , wherein the outer frame is cylindrical.

9. The display apparatus according to claim 7 , further comprising a display panel driving module configured to drive the display panel and located within the cavity of the outer frame.

10. The display apparatus according to claim 1 , wherein the angle between the direction of the light transmission axis of the second polarizer and the direction of the light transmission axis of the first polarizer is adjustable between 0 and 90 degrees.

11. The display apparatus according to claim 1 , wherein the second polarizer is separated from the display panel mounted with the first polarizer.

12. The display apparatus according to claim 1 , wherein the second polarizer is located on the second side of the display panel.

13. The display apparatus according to claim 12 , wherein the display panel is a liquid crystal display panel.

14. The display apparatus according to claim 12 , further comprising a backlight unit located on the second side of the display panel.

15. The display apparatus according to claim 1 , wherein the first polarizer and the second polarizer are located sequentially on the first side of the display panel.

16. The display apparatus according to claim 15 , wherein the display panel is an organic light emitting diode display panel, a plasma display panel or a cathode ray tube display panel.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Li Wenbo
• Dong Yefei

Classifications

• G02F2001/133531

  Physics · mapped topic

• G02F1/133528 Primary

  Polarisers · CPC title

• G02B5/3025 Primary

  Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state (G02B5/3008, G02B5/3016 take precedence) · CPC title

• G02F2201/56

  Substrates having a particular shape, e.g. non-rectangular · CPC title

• G02F1/133531

  characterised by the arrangement of polariser or analyser axes · CPC title