IP Library Granted Patent US 9,423,904
Granted Patent B2
US 9,423,904 · App. 14/687,719 · Granted Aug 23, 2016

Portable device and method of manufacturing a display device

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Quick Facts
Patent No.
US 9,423,904
App. No.
14/687,719
Granted
Aug 23, 2016
Kind
B2
Abstract

A portable device and method of manufacturing a display device includes a display panel having a glass substrate and a polarizer adhered to the glass substrate, a touch panel which is made of resin material and adhered to the polarizer of the display panel by a first adhesive material, and a front window which is made of glass and adhered to the touch panel by a second adhesive material. One of the first adhesive material and the second adhesive material is an adhesive sheet, and an other of the first adhesive material and the second adhesive material is an ultraviolet-curing adhesive material.

Claims (43)

1. A display device comprising:

a display panel,

a touch panel including a resin formed on the display panel,

a front window including a glass formed on the touch panel,

a first adhesive material disposed between the display panel and the touch panel, the display panel and the touch panel adhered by the first adhesive material, and

a second adhesive material disposed between the touch panel and the front window, the touch panel and the front window adhered by the second adhesive material;

wherein the display panel includes a first substrate and a second substrate facing the first substrate,

wherein an area of the front window and an area of the touch panel are larger than an area of the second substrate of the display panel,

wherein the first substrate has an edge region not overlapping with the second substrate in a top plan view,

wherein the display panel includes a semiconductor chip, and the semiconductor chip mounts on the edge region,

wherein the display panel includes a polarizer on the second substrate, the touch panel and the polarizer of the display panel are adhered by the first adhesive material,

wherein the semiconductor chip is thinner than a sum of the polarizer and the second substrate.

2. The display device according to the claim 1 ;

wherein the front window is including a reinforced glass.

3. The display device according to the claim 1 ;

wherein the first adhesive material is an adhesive sheet.

4. The display device according to the claim 1 ;

wherein the touch panel projects against the first substrate, a projecting portion of the touch panel overlaps with the semiconductor chip.

5. The display device according to the claim 1 ;

wherein the area of the front window is larger than the area of the touch panel.

6. The display device according to the claim 1 ;

wherein the display panel includes a liquid crystal between the first substrate and the second substrate.

7. The display device according to the claim 1 ;

wherein the semiconductor chip is thicker than the second substrate.

8. The display device according to the claim 1 ;

wherein the semiconductor chip is thinner than a sum of one half of the polarizer and the second substrate.

9. The display device according to the claim 1 ;

wherein the display panel includes a conductive film formed on the second substrate, and

wherein the conductive material electrically connecting the conductive film to a ground electrode.

10. The display device according to the claim 9 ;

wherein the conductive film is Indium Tin Oxide.

11. The display device according to the claim 9 ;

wherein the ground electrode is formed on the edge region.

12. The display device according to the claim 9 , wherein

the conductive material is a conductive tape.

13. The display device according to the claim 12 ;

wherein the ground electrode is formed on the edge region.

14. The display device according to the claim 12 ;

wherein the conductive tape is thinner than the polarizer.

15. The display device according to the claim 12 ;

wherein the touch panel covers the conductive film in a top plan view.

16. The display device according to the claim 12 ;

the conductive tape adheres thermocompressively to the conductive film.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 10, 2025
From: JAPAN DISPLAY INC
To: MAGNOLIA PURPLE CORPORATION
Reel/Frame 071890/0202 →
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 →