IP Library Granted Patent US 7,471,370
Granted Patent B2
US 7,471,370 · App. 11/350,879 · Granted Dec 30, 2008

Columnar spacer for liquid crystal display

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Quick Facts
Patent No.
US 7,471,370
App. No.
11/350,879
Granted
Dec 30, 2008
Kind
B2
Abstract

Plenty of columnar spacers arranged between the substrates for liquid crystal display are presented. The columnar spacer includes a solid member with a plateau and a crown member atop the plateau and extended from the solid member. The crown member has a mesa with a pattern exposing a portion of the plateau, and the mesa is smaller than the plateau. The exposed plateau is past through an exterior environment.

Claims (16)

1. A columnar spacer arranged between two substrates for liquid crystal display, the columnar spacer comprising:

a solid member with a plateau; and

a crown member atop said plateau and extended from said solid member, wherein said crown member has a mesa with a pattern exposing a portion of said plateau, said mesa is smaller than said plateau, and said crown member is further with a plurality of cavities therein, wherein the plurality of cavities has different depths.

2. The columnar spacer according to claim 1 , wherein said pattern is corresponding to said cavities.

3. The columnar spacer according to claim 1 , wherein any one of said cavity is with a sidewall vertical to said plateau.

4. The columnar spacer according to claim 1 , wherein any one of said cavity is with a sidewall inclined to said plateau.

5. The columnar spacer according to claim 1 , wherein said crown member is distributed around said exposed plateau.

6. The columnar spacer according to claim 1 , wherein said crown member is distributed within said exposed plateau.

7. A liquid crystal display comprising:

a pair of substrates holding a liquid crystal layer therebetween; and

a plurality of columnar spacers arranged between said substrates, wherein any one of said columnar spacer comprises:

a columnar member with a plateau parallel to said substrates; and

a crown member atop said plateau, wherein said crown member has a plurality of solid sub-members extended from said plateau and said solid sub-members have a mesa exposing a portion of said plateau, said mesa is smaller than said plateau, and said crown member is further with a plurality of cavities therein, wherein the plurality of cavities has different depths.

8. The liquid crystal display according to claim 7 , wherein any one of said solid sub-member is of columnar shape.

9. The liquid crystal display according to claim 7 , wherein said crown members are elastic members.

10. The liquid crystal display according to claim 8 , wherein said columnar member substantially provides support when the force is enforced upon said two substrates.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 31, 2020
From: INTELLECTUAL VENTURES ASSETS
To: DISPLAY VECTORS LLC
Reel/Frame 053368/0937 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 6, 2020
From: NYTELL SOFTWARE LLC
To: INTELLECTUAL VENTURES ASSETS 140 LLC
Reel/Frame 051422/0383 →
MERGER Recorded Dec 31, 2015
From: INTELLECTUAL VENTURES FUND 82 LLC
To: NYTELL SOFTWARE LLC
Reel/Frame 037407/0878 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 31, 2011
From: CHUNGHWA PICTURE TUBES LTD.
To: INTELLECTUAL VENTURES FUND 82 LLC
Reel/Frame 026837/0529 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 9, 2006
From: WU, DER-CHUN; LI, DE-JIUN
To: CHUNGHWA PICTURE TUBES, LTD
Reel/Frame 017985/0195 →