IP Library Granted Patent US 8,274,635
Granted Patent B2
US 8,274,635 · App. 13/067,579 · Granted Sep 25, 2012

Display device with sufficient adhesive strength for sealing material

Assignees: Hitachi Displays, Ltd.; Panasonic Liquid Crystal Display Co., Ltd.
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Quick Facts
Patent No.
US 8,274,635
App. No.
13/067,579
Filed
Jun 10, 2011
Granted
Sep 25, 2012
Kind
B2
Art Unit
2871
USPC
349/153
Abstract

A display device which can ensure a sufficient adhesive strength on an adhering surface between each of a pair of substrates of a liquid crystal display panel and a sealing material is provided. A display device includes: a first substrate on which a predetermined integrated circuit is formed; a second substrate which is arranged on one surface of the first substrate in an overlapping manner; and an adhesive material which is arranged between the first substrate and the second substrate and has an annular planar shape as viewed from the surface of the first substrate, the adhesive material being provided for adhering the first substrate and the second substrate, wherein an outer periphery of the adhesive material as viewed from the surface of the first substrate includes a zone which is constituted of a plurality of first portions passing substantially the same position as an outer periphery of the surface of the first substrate and a plurality of second portions each of which is connected with the two neighboring first portions and has a center portion thereof in a peripheral direction retracted toward an inner peripheral side of the adhesive material as viewed from the surface of the first substrate.

Claims (10)

1. A display device comprising:

a first substrate having a first edge;

a second substrate; and

an adhesive material arranged between the first substrate and the second substrate and having a plurality of first portions which are arranged in parallel with the first edge and apart from the first edge,

wherein the adhesive material includes a plurality of second portions which are disposed contiguously with the first edge of the first substrate.

2. A display device according to claim 1 , wherein the first substrate has a second edge which is orthogonal to the first edge, and wherein the first substrate has a plurality of external connection terminals disposed thereon which are arranged along the second edge.

3. A display device according to claim 2 , wherein the first substrate has a third edge which is orthogonal to the first edge and in parallel with the second edge, and wherein the adhesive material has a plurality of third portions which are arranged in parallel with the third edge and apart from the third edge, and includes a plurality of fourth portions which are disposed contiguously with the third edge of the first substrate.

4. A display device according to claim 3 , wherein the adhesive material has a closed annular planar shape as viewed from the first substrate.

5. A display device according to claim 2 , wherein the adhesive material has an open annular planar shape as viewed from the first substrate.

6. A display device according to claim 2 , wherein a liquid crystal material is filled between the first substrate and the second substrate.

Assignments (8)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 10, 2025
From: JAPAN DISPLAY INC
To: MAGNOLIA PURPLE CORPORATION
Reel/Frame 071890/0202 →
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 →
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 →
MERGER Recorded Dec 13, 2011
From: IPS ALPHA SUPPORT CO., LTD.
To: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
Reel/Frame 027482/0140 →
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 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 10, 2011
From: TSUCHIYA, AKI; YAMAMOTO, TAKASHI; ISHII, AKIRA; KIKUCHI, NAOKI; ARAI, YOSHIHIRO
To: HITACHI DISPLAYS, LTD.
Reel/Frame 026534/0884 →
Priority Claims (1)
JP 2008-032563 · Feb 14, 2008 · national
Continuity (2)
Continuation 12379106 · Feb 12, 2009
Related Publication 20110242474A1 · Oct 6, 2011