IP Library Granted Patent US 7,542,105
Granted Patent B2
US 7,542,105 · App. 11/688,929 · Granted Jun 2, 2009

Display device

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Quick Facts
Patent No.
US 7,542,105
App. No.
11/688,929
Granted
Jun 2, 2009
Kind
B2
Abstract

A display device includes a display panel having opposed first and second substrates with the second substrate being arranged closer to a viewer, an upper polarizer which is arranged closer to the viewer than the second substrate, and a resin film which is arranged closer to the viewer than the upper polarizer and is in contact with the upper polarizer. An outer periphery of the upper polarizer is arranged inside an outer periphery of the second substrate, and an outer periphery of the resin film is arranged outside the outer periphery of the upper polarizer as viewed from a front surface of the display panel. A cushion material in contact with the second substrate, and the resin film is interposed between the second substrate and the resin film.

Claims (18)

1. A display device including a display panel comprising:

a first substrate,

a second substrate which is arranged to face the first substrate in an opposed manner on a side closer to a viewer than the first substrate,

an upper polarizer which is arranged on the side closer to the viewer than the second substrate, and

a resin film which is arranged on the side closer to the viewer than the upper polarizer and is brought into close contact with the upper polarizer by adhesion, wherein

an outer periphery of the upper polarizer is arranged more inside than an outer periphery of the second substrate and an outer periphery of the resin film is arranged more outside than the outer periphery of the upper polarizer as viewed from a front surface of the display panel, and

a cushion material which is brought into close contact with the second substrate and the resin film is interposed between the second substrate and the resin film more outside than the outer periphery of the upper polarizer.

2. A display device according to claim 1 , wherein the cushion material is formed in an annular shape to surround the outer periphery of the upper polarizer.

3. A display device according to claim 1 , wherein the display panel is housed in a box-like or a frame-like support member, and the cushion material is brought into close contact with a side of an inner surface of the support member.

4. A display device according to claim 1 , wherein the resin film has a thickness of 0.2 mm or more and 2 mm or less.

5. A display device according to claim 1 , wherein a material of the resin film is an acrylic resin or an epoxy resin.

6. A display device according to claim 1 , wherein a surface hardness of the resin film is a surface pencil hardness of 3 H or more.

7. A display device according to claim 1 , wherein a total thickness of the display panel excluding the resin film is 1.4 mm or less.

8. A display device according to claim 1 , wherein the display panel includes an upper retardation plate between the upper polarizer and the second substrate.

9. A display device according to claim 1 , wherein the display panel includes a lower polarizer which is arranged behind the first substrate as viewed from the viewer.

10. A display device according to claim 9 , wherein the display panel includes a lower retardation plate between the lower polarizer and the first substrate.

11. A display device according to claim 1 , wherein the first substrate and the second substrate are glass substrates.

12. A display device according to claim 1 , wherein the display panel includes a liquid crystal layer between the first substrate and the second substrate.

Assignments (8)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 10, 2025
From: JAPAN DISPLAY INC
To: MAGNOLIA PURPLE CORPORATION
Reel/Frame 071890/0202 →
CHANGE OF NAME Recorded Nov 17, 2023
From: HITACHI DISPLAYS, LTD.
To: JAPAN DISPLAY EAST, INC.
Reel/Frame 065614/0223 →
CHANGE OF NAME Recorded Nov 17, 2023
From: JAPAN DISPLAY EAST, INC.
To: JAPAN DISPLAY, INC.
Reel/Frame 065614/0644 →
CHANGE OF ADDRESS Recorded Nov 17, 2023
From: JAPAN DISPLAY, INC.
To: JAPAN DISPLAY, INC.
Reel/Frame 065654/0250 →
NUNC PRO TUNC ASSIGNMENT Recorded Nov 17, 2023
From: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
To: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Reel/Frame 065615/0327 →
MERGER Recorded Oct 14, 2011
From: IPS ALPHA SUPPORT CO., LTD.
To: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
Reel/Frame 027063/0139 →
COMPANY SPLIT PLAN TRANSFERRING FIFTY (50) PERCENT SHARE OF PATENTS Recorded Oct 14, 2011
From: HITACHI DISPLAYS, LTD.
To: IPS ALPHA SUPPORT CO., LTD.
Reel/Frame 027063/0019 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 21, 2007
From: SATO, TSUTOMU; YANAGIHARA, MASAYUKI; FUKUDA, KOICHI
To: HITACHI DISPLAYS, LTD.
Reel/Frame 019040/0563 →