IP Library Granted Patent US 8,558,965
Granted Patent B2
US 8,558,965 · App. 13/446,331 · Granted Oct 15, 2013

Liquid crystal display and display

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,558,965
App. No.
13/446,331
Granted
Oct 15, 2013
Kind
B2
Abstract

A hand-held electronic device includes a liquid crystal display device having a first substrate, a second substrate bonded to the first substrate, with liquid crystal material held between the first substrate and the second substrate, and an upper polarizing plate affixed to the second substrate. A protective member is disposed over the upper polarizing plate, and an adhesive member is disposed between the protective member and the upper polarizing plate without an air layer between the protective member and the upper polarizing plate. The protective member is configured as a protective cover of the hand-held electronic device.

Claims (26)

1. A hand-held electronic device comprising:

a liquid crystal display device comprising a first substrate, a second substrate bonded to the first substrate, liquid crystal material held between the first substrate and the second substrate, and an upper polarizing plate affixed to the second substrate;

a protective member disposed over the upper polarizing plate; and

an adhesive member disposed between the protective member and the upper polarizing plate and without an air layer between the protective member and the upper polarizing plate;

wherein the protective member is configured as a protective cover of the hand-held electronic device; and

wherein a thickness of the protective member is 0.2 mm to 1.0 mm.

2. A hand-held electronic device according to claim 1 , wherein a surface pencil hardness of the protective member is at least 3H.

3. A hand-held electronic device according to claim 1 , wherein an upper surface of the second substrate is bonded to a sheath of the hand-held electronic device.

4. A hand-held electronic device according to claim 1 , wherein an upper surface of the upper polarizing plate is bonded to a sheath of the hand-held electronic device.

5. A hand-held electronic device according to claim 1 , wherein a thickness of the second substrate is no greater than 0.5 mm.

6. A hand-held electronic device according to claim 3 , wherein a surface pencil hardness of the protective member is 3H or harder.

7. A hand-held electronic device according to claim 2 , wherein an upper surface of the second substrate is bonded to a sheath of the hand-held electronic device.

8. A hand-held electronic device according to claim 6 , wherein an upper surface of the upper polarizing plate is bonded to a sheath of the hand-held electronic device.

9. A hand-held electronic device comprising:

a liquid crystal display device comprising a TFT substrate;

a counter substrate bounded to the TFT substrate, and a polarizing plate disposed over the counter substrate;

a protective member disposed over the polarizing plate; and

an adhesive member disposed between the protective member and the polarizing plate and without an air layer between the protective member and the polarizing plate;

wherein the protective member is configured as a protective cover of the hand-held electronic device; and

wherein a thickness of the protective member is 0.2 mm to 1 mm.

10. A hand-held electronic device according to claim 9 , wherein a thickness of the counter substrate is no greater than 0.5 mm.

11. A hand-held electronic device according to claim 9 , wherein a surface pencil hardness of the protective member is 3H or harder.

12. A hand-held electronic device according to claim 1 , wherein no air layer is present between the protective member and a display area of the liquid crystal display device.

13. A hand-held electronic device according to claim 9 , wherein no air layer is present between the protective member and a display area of the liquid crystal display device.

14. A hand-held electronic device according to claim 2 , wherein the protective member is a resin member.

15. A hand-held electronic device according to claim 11 , wherein the protective member is a resin member.

Assignments (5)
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 →
CHANGE OF NAME Recorded Aug 12, 2020
From: HITACHI DISPLAYS, LTD.
To: JAPAN DISPLAY EAST, INC.
Reel/Frame 053464/0009 →
CHANGE OF NAME Recorded Aug 12, 2020
From: JAPAN DISPLAY EAST, INC.
To: JAPAN DISPLAY, INC.
Reel/Frame 053465/0807 →
CHANGE OF ADDRESS Recorded Aug 12, 2020
From: JAPAN DISPLAY, INC.
To: JAPAN DISPLAY, INC.
Reel/Frame 053465/0864 →