IP Library Granted Patent US 8,902,397
Granted Patent B2
US 8,902,397 · App. 13/275,669 · Granted Dec 2, 2014

Liquid crystal display panel and method of manufacturing the same

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Quick Facts
Patent No.
US 8,902,397
App. No.
13/275,669
Granted
Dec 2, 2014
Kind
B2
Abstract

In one embodiment, a liquid crystal display panel includes an array substrate and a counter substrate each having a display region and a peripheral region arranged adjacent to the display region. A resin layer is formed either one of the array substrate and the counter substrate. A protrusion in the shape of a wall is arranged on the resin layer with a gap between the protrusion and the substrate opposing the protrusion. A seal material is formed between the array substrate and the counter substrate, and arranged between a peripheral portion of the display region and the protrusion for attaching the array substrate and the counter substrate. A liquid crystal layer is formed in a surrounded region by the array substrate, the counter substrate and the seal material.

Claims (12)

1. A liquid crystal display panel, comprising:

an array substrate including a display region and a peripheral region arranged adjacent to the display region;

a counter substrate including the display region and the peripheral region, and arranged opposing the array substrate with a gap between the counter substrate and the array substrate;

a resin layer formed on the peripheral region of either one of the array substrate and the counter substrate;

a protrusion in a shape of a wall arranged on the resin layer with a gap between the protrusion and either one of the counter substrate or the array substrate;

a seal material formed in the peripheral region between the array substrate and the counter substrate, and arranged between a peripheral portion of the display region and the protrusion to contact the protrusion and for attaching the array substrate and the counter substrate;

a plurality of pillar-shaped spacers formed on either one of the array substrate and the counter substrate, the protrusion being formed of a same material as the pillar-shaped spacers; and

a liquid crystal layer formed in a surrounded region by the array substrate, the counter substrate and the seal material,

wherein a first side of the seal material contacts the liquid crystal layer and a second side of the seal material contacts the protrusion outside the display region.

2. The liquid crystal display panel according to claim 1 , wherein the protrusion includes a first protrusion element arranged adjacent to the seal material and a second protrusion element arranged adjacent to the first protrusion element in an opposite side of the seal material.

3. The liquid crystal display panel according to claim 1 , wherein the protrusion is arranged so that the protrusion is arranged in a same plane as end planes of the respective peripheral portions of the array substrate and the counter substrate.

4. The liquid crystal display panel according to claim 1 , wherein the resin layer includes a concave portion located adjacent to the protrusion, and at least a portion of the seal material is accommodated in the concave portion.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
CORPORATE ADDRESS CHANGE Recorded Aug 27, 2014
From: JAPAN DISPLAY INC.
To: JAPAN DISPLAY INC.
Reel/Frame 033626/0043 →
MERGER Recorded Aug 27, 2014
From: JAPAN DISPLAY CENTRAL INC.
To: JAPAN DISPLAY INC.
Reel/Frame 033626/0536 →
CHANGE OF NAME Recorded Jun 13, 2012
From: TOSHIBA MOBILE DISPLAY CO., LTD.
To: JAPAN DISPLAY CENTRAL INC.
Reel/Frame 028365/0031 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 18, 2011
From: HOSHINA, KATSUHIRO; IIZUKA, TETSUYA
To: TOSHIBA MOBILE DISPLAY CO., LTD.
Reel/Frame 027079/0163 →