IP Library Granted Patent US 8,243,227
Granted Patent B2
US 8,243,227 · App. 13/064,226 · Granted Aug 14, 2012

Liquid crystal display device having reduced outer dimensions

Assignees: Hitachi Displays, Ltd.; Panasonic Liquid Crystal Display Co., Ltd.
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Quick Facts
Patent No.
US 8,243,227
App. No.
13/064,226
Granted
Aug 14, 2012
Kind
B2
Abstract

An object of the present invention is to reduce the exterior of a display device while retaining a display screen at a certain size. A liquid crystal display panel including a TFT substrate formed with a glass substrate and a color filter substrate is stored in a frame made of a metal. In order to avoid the direct contact between the glass substrate and the frame made of a metal, part of an optical sheet included in a backlight disposed behind the liquid crystal display panel is extended to lie between the liquid crystal display panel and the frame, and is regarded as a spacer. Since the thickness of the optical sheet is as small as 0.06 mm, the spacer hardly affects the external dimensions of a display device. Consequently, while a crack of the glass substrate is prevented, the exterior of the display device can be reduced.

Claims (14)

1. A liquid crystal display device comprising:

a liquid crystal display panel including a TFT substrate in which pixel electrodes and TFTs each of which controls a signal to be sent to the pixel electrode are disposed in the form of a matrix, and a color filter substrate in which color filters associated with the pixel electrodes are formed;

a backlight including a plurality of optical sheets and being placed on the back of the liquid crystal display panel; and

a frame accommodating the liquid crystal display panel and the backlight, wherein: the frame has a lateral internal wall;

each of the optical sheets includes a bend portion that is bent along the lateral internal wall of the frame, and

wherein the bend portions of the plurality of optical sheets are layered to lie between the lateral internal wall of the frame and the liquid crystal display panel.

2. The liquid crystal display device according to claim 1 , wherein the bend portions of the plurality of optical sheets are located in different places between the lateral internal wall of the frame and the liquid crystal display panel.

3. A liquid crystal display device comprising:

a liquid crystal display panel including a TFT substrate in which pixel electrodes and TFTs each of which controls a signal to be sent to the pixel electrode are disposed in the form of a matrix, and a color filter substrate in which color filters associated with the pixel electrodes are formed;

a backlight including a plurality of optical sheets and being placed on the back of the liquid crystal display panel; and

a frame accommodating the liquid crystal display panel and the backlight, wherein: the frame has a lateral internal wall, wherein

each of the optical sheets includes a bend portion that is bent along the lateral internal wall of the frame, and

wherein the bend portions of the plurality of optical sheets are located in different places between the lateral internal wall of the frame and the liquid crystal display panel.

4. The liquid crystal display device according to claim 1 , wherein the bend portions of the plurality of optical sheets are layered to lie between the lateral internal wall of the frame and the liquid crystal display panel.

Assignments (8)
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 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 →
ATTACHED ARE (1) THE COMPANY SPLIT DOCUMENTS IN JAPANESE WITH ENGLISH TRANSLATION THEREOF AND (2) THE CERTIFICATE OF COMPANY SPLIT DOCUMENT IN JAPANESE WITH ENGLISH TRANSLATION, WHICH TOGETHER CONVEY 50% OWNERSHIP OF THE REGISTERED PATENTS AS LISTED IN THE ATTACHED TO EACH OF THE RECEIVING PARTIES (SEE PAGE 10, EXHIBIT 2-1, SECTION 1 OF THE ENGLISH TRANSLATION OF THE COMPANY SPLIT PLAN.) Recorded Dec 13, 2011
From: HITACHI, DISPLAYS, LTD.
To: HITACHI DISPLAYS, LTD.; IPS ALPHA SUPPORT CO., LTD.
Reel/Frame 027615/0589 →
MERGER Recorded Dec 13, 2011
From: IPS ALPHA SUPPORT CO., LTD.
To: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
Reel/Frame 027482/0140 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 11, 2011
From: OOHIRA, EIJI
To: HITACHI DISPLAYS, LTD.
Reel/Frame 026001/0547 →
Priority Claims (1)
JP 2006-331786 · Dec 8, 2006 · national
Continuity (2)
Continuation 11987960 · Dec 6, 2007
Related Publication 20110164197A1 · Jul 7, 2011