IP Library Granted Patent US 7,880,850
Granted Patent B2
US 7,880,850 · App. 11/952,313 · Granted Feb 1, 2011

Liquid crystal display device comprising an electrode having a connection portion with a dielectric member thereon as to contact a pixel electrode of the second substrate, and manufacturing method for the same

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Quick Facts
Patent No.
US 7,880,850
App. No.
11/952,313
Granted
Feb 1, 2011
Kind
B2
Abstract

A liquid crystal display device is disclosed. The liquid crystal display includes a liquid crystal layer disposed between substrates opposing each other. A pixel of the liquid crystal display is alignment-divided into a plurality of sub-pixels. A dielectric member is provided on a connection portion where the sub-pixels are electrically connected.

Claims (22)

1. A liquid crystal display device comprising a liquid crystal layer disposed between first and second substrates,

wherein,

said display device comprises at least one pixel which is alignment-divided into a plurality of sub-pixels,

said sub-pixels are connected together by an electrode on said first substrate,

a connection portion is a portion of said electrode exposed by notches or slit between said sub-pixels,

said connection portion has a width less than a width of said sub-pixels, and

said connection portion has a dielectric member thereon, the dielectric member on the electrode of the first substrate being disposed so as to contact a pixel electrode of the second substrate.

2. The liquid crystal display device according to claim 1 , wherein:

a center of each of the sub-pixels includes an alignment control member on the pixel electrode of the second substrate.

3. The liquid crystal display device according to claim 1 , further comprising a light shielding element on said first substrate on a side facing away from said second substrate.

4. The liquid crystal display device according to claim 1 , further comprising a light shielding element on said second substrate on a side facing away from said first substrate.

5. The liquid crystal display device according to claim 1 , wherein the dielectric member is disposed around the electrode on the first substrate.

6. The liquid crystal display device according to claim 1 , wherein the dielectric member serves also as a spacer that maintains a space between the first and second substrates.

7. The liquid crystal display device according to claim 1 , wherein the liquid crystal layer is of a vertical alignment type.

8. A method of manufacturing a liquid crystal display device which includes a liquid crystal layer disposed between first and second substrates, and in which a pixel is alignment-divided into a plurality of sub-pixels, the method including the steps of:

forming an electrode on the first substrate on a side which will face said second substrate;

forming notches or a slit between said sub-pixels electrically connected by a connection portion so that said connection portion has a width less than that of said sub-pixels; and

forming a dielectric member on said connection portion, the dielectric member on the electrode of the first substrate being disposed so as to contact a pixel electrode of the second substrate.

9. The manufacturing method of the liquid crystal display device according to claim 8 , wherein

the dielectric member is formed to connect to the first and second substrates, and the dielectric member is made to serve also as a spacer to keep a space between the substrates.

10. The manufacturing method of the liquid crystal display device according to claim 8 , wherein

the dielectric member is formed around the electrode or on a part thereof.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 11, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072398/0001 →
MERGER AND CHANGE OF NAME Recorded Jul 24, 2025
From: JAPAN DISPLAY EAST INC.; JAPAN DISPLAY WEST INC.
To: JAPAN DISPLAY INC.
Reel/Frame 071935/0063 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 8, 2013
From: SONY CORPORATION
To: JAPAN DISPLAY WEST INC.
Reel/Frame 031377/0874 →