IP Library Granted Patent US 9,921,424
Granted Patent B2
US 9,921,424 · App. 15/428,546 · Granted Mar 20, 2018

Portable device and method of manufacturing a display device

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Quick Facts
Patent No.
US 9,921,424
App. No.
15/428,546
Granted
Mar 20, 2018
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 (42)

1. A display device comprising:

a display panel having a first substrate, a polarizer, and a semiconductor chip,

a touch panel being on the display panel and having a flexible printed circuit board,

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

wherein the touch panel and the polarizer of the display panel are adhered by the first adhesive material,

wherein the semiconductor chip mounts on an edge region of the first substrate,

wherein the touch panel has a first portion doesn't overlapped with the polarizer,

wherein the first portion overlaps with the semiconductor chip,

wherein the flexible printed circuit board overlaps with the semiconductor chip, and

wherein a height of a top surface of the semiconductor chip from the first substrate is smaller than a height of a top surface of the polarizer from the first substrate.

2. The display device according to the claim 1 further comprising:

a front window on the touch panel,

wherein the front window is including a reinforced glass.

3. The display device according to the claim 1 further comprising:

a front window on the touch panel,

wherein the front window is including an acryl material.

4. The display device according to the claim 1 ;

wherein the display panel has a second substrate facing the first substrate.

5. The display device according to the claim 1 further comprising:

a front window on the touch panel,

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

6. The display device according to the claim 4 ;

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

7. The display device according to the claim 4 ;

wherein the semiconductor chip is thicker than the second substrate.

8. The display device according to the claim 4 ;

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 4 ;

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 →