DISPLAY DEVICE

• US 20110164210A1
• Filed: 08/26/2009
• Published: 07/07/2011
• Est. Priority Date: 09/25/2008
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Tsuda, Kazuhiko
• Granted Patent: US 8,587,750 B2
• Time in Patent Office: Days
• US Class Current: 349/96
• CPC Class Codes: G02B 27/0018 with means for preventing ghost images anti-reflection coatings G02B1/11
• CPC Class Codes: G02B 27/28 for polarising used in stereoscopes G02B30/25
• CPC Class Codes: G02F 2201/50 Protective arrangements
• CPC Class Codes: H10K 50/841 Self-supporting sealing arrangements
• CPC Class Codes: H10K 50/86 Arrangements for improving contrast, e.g. preventing reflection of ambient light
• CPC Class Codes: H10K 59/871 Self-supporting sealing arrangements
• CPC Class Codes: H10K 59/8791 Arrangements for improving contrast, e.g. preventing reflection of ambient light

Abstract

The present invention provides a display device which can reduce reflected light reflected on the respective surfaces of a display panel and a protective plate, even if the protective plate is disposed on the surface of the display panel, without employing a complicated structure and without degrading display quality. The display device includes: a display panel; and a protective plate disposed facing the display panel. The protective plate has a protective base material and a first polarizer, the display panel has a second polarizer of which a polarization axis is parallel to that of the first polarizer, and light passing between the first polarizer and the second polarizer is linearly polarized light.

Claims

1. A display device, comprising:

a display panel; and

a protective plate disposed facing the display panel, wherein the protective plate comprises a protective base material and a first polarizer, the display panel comprises a second polarizer of which a polarization axis is parallel to that of the first polarizer, and

light passing between the first polarizer and the second polarizer is linearly polarized light.

2. The display device according to claim 1, wherein an air layer is disposed between the display panel and the protective plate.

3. The display device according to claim 1, wherein the first polarizer is disposed on the display panel side of the protective base material.

4. The display device according to claim 1, wherein the protective plate further comprises a first antireflection layer on the display panel side surface of the protective plate.

5. The display device according to claim 1, wherein the display panel further comprises a second antireflection layer on the protective plate side surface of the display panel.

6. The display device according to claim 1, wherein the protective plate further comprises a third antireflection layer on the surface, facing the outside, of the protective plate.

7. The display device according to claim 1, wherein the display panel has a third polarizer, a first substrate, a liquid crystal layer, a second substrate, and the second polarizer, in this order toward the protective plate.

8. The display device according to claim 1, wherein the display panel has a first electrode, an organic electroluminescence layer, a second electrode, a λ

/4 plate, and the second polarizer, in this order toward the protective plate.