IP Library Granted Patent US 8,269,933
Granted Patent B2
US 8,269,933 · App. 13/242,871 · Granted Sep 18, 2012

Liquid crystal display and fabricating method thereof

Assignee: LG Display Co., Ltd.
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Quick Facts
Patent No.
US 8,269,933
App. No.
13/242,871
Granted
Sep 18, 2012
Kind
B2
Abstract

A liquid crystal display (LCD) device includes first and second substrates with a liquid crystal material therebetween; a first alignment film formed on the first substrate and a second alignment film formed on the second substrate; a first align mark on the first substrate, the first align mark formed of the same material as the first alignment film and formed in a shape of any one of a circle, square and cross; and a second align mark to be aligned with the first align mark on the second substrate.

Claims (8)

1. A method of fabricating a liquid crystal display (LCD) device, comprising:

forming a first alignment film for aligning liquid crystal and a first align mark made of the same material as the first alignment film on a first substrate at the same time, wherein the first align mark has a shape of a square having an aperture in the center, wherein the first alignment film and the first align mark are formed by a print roller having resin plate;

forming a second alignment film for aligning liquid crystal and a second align mark to be aligned with the first align mark on a second substrate, wherein the second align mark includes a first mark and a second mark, wherein the first mark has a shape of a square having an aperture in the center, wherein the first mark is greater than the first align mark, wherein the second mark has a shape of a square dot, wherein the second mark is smaller than both the aperture of the first align mark and the aperture of the first mark, and wherein the second mark is positioned at the aperture of the first mark so that the second mark is surrounded by the first mark;

providing a liquid crystal material between the first and second substrates;

aligning the first and second substrates using the first and second align marks; and

bonding together the first and second substrates;

wherein the first alignment film and the first align mark have a light yellow tone.

2. The method according to the claim 1 , wherein the first align mark has a size of about 600 μm˜about 1200 μm.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 23, 2011
From: KIM, DONG GUK
To: LG.PHILIPS LCD CO., LTD.
Reel/Frame 026960/0996 →
CHANGE OF NAME Recorded Sep 23, 2011
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 026962/0535 →
Priority Claims (1)
KR P2005-0031360 · Apr 15, 2005 · national
Continuity (2)
Division 11400292 · Apr 10, 2006
Related Publication 20120008078A1 · Jan 12, 2012