IP Library Granted Patent US 10,459,274
Granted Patent B2
US 10,459,274 · App. 16/255,969 · Granted Oct 29, 2019

Portable device and method of manufacturing a display device

Inventor: Eiji Oohira (Mobara, JP)
Assignees: Japan Display Inc.; Panasonic Liquid Crystal Display Co., Ltd.
G02F1/13338G02F1/1339G02F1/1345G02F1/13439G02F1/133528G02F1/134363G06F3/044G06F3/0412G02F1/13452G02F2001/13332G02F2001/133531G02F2202/28G06F2203/04103Y10T156/10
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Quick Facts
Patent No.
US 10,459,274
App. No.
16/255,969
Granted
Oct 29, 2019
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 (41)

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,

a front cover on the touch panel, and

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

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 second substrate and the polarizer are stacked on the first substrate in this order and are in contact with each other,

wherein the front cover has a first portion that does not overlap with the polarizer,

wherein the first portion 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 ;

wherein the front window is including a glass.

3. The display device according to the claim 1 ;

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 ;

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 is 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 ;

wherein 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 →
Priority Claims (1)
JP 2008-197213 · Jul 31, 2008 · national
Continuity (7)
Continuation 15879550 · Jan 25, 2018
Continuation 15428546 · Feb 9, 2017
Continuation 15212395 · Jul 18, 2016
Continuation 14687719 · Apr 15, 2015
Continuation 13603847 · Sep 5, 2012
Continuation 12511151 · Jul 29, 2009
Related Publication 20190155081A1 · May 23, 2019