IP Library Granted Patent US 8,134,678
Granted Patent B2
US 8,134,678 · App. 11/538,595 · Granted Mar 13, 2012

Liquid crystal display panel with improved display characteristics and mask used to fabricate the same

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Quick Facts
Patent No.
US 8,134,678
App. No.
11/538,595
Granted
Mar 13, 2012
Kind
B2
Abstract

A liquid crystal display (LCD) panel with improved display characteristics includes a first display plate and a second display plate which face each other with a liquid crystal layer therebetween, a seal bonding the first display plate to the second display plate to prevent leakage of the liquid crystal layer, and an impurity blocking and liquid crystal flowing structure disposed inside a perimeter of the seal to prevent impurities from flowing from the seal to an active region in the first and second display plates while providing a flow path allowing liquid crystals to flow to the seal.

Claims (9)

1. A liquid crystal display panel comprising:

a first display plate and a second display plate which face each other with a liquid crystal layer therebetween;

a seal bonding the first display plate to the second display plate to prevent leakage of the liquid crystal layer; and

an impurity blocking and liquid crystal flowing structure disposed inside a perimeter of the seal and in a black matrix frame region between the seal and an active region to prevent impurities from flowing from the seal to the active region in the first and second display plates and provide a flow path allowing liquid crystals to flow to the seal, wherein the impurity blocking and liquid crystal flowing structure comprises patterns separated from each other by a space corresponding to the flow path,

each of the patterns has at least one trap groove facing the seal, and

the trap groove defined by at least one concave surface and convex surface opposite the at least one concave surface facing the seal.

2. The liquid crystal display panel of claim 1 , wherein the impurity blocking and liquid crystal flowing structure is discontinuous due to the flow path.

3. The liquid crystal display panel of claim 1 , wherein the patterns are arranged in at least two lines, and patterns in a first line alternate with patterns in a second line.

4. The liquid crystal display panel of claim 3 , wherein both ends of each pattern in the second line partially overlap with two adjacent patterns, respectively, in the first line.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 21, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029019/0139 →