Display device

Patent metadata

Field	Value
Publication number	US-10025142-B2
Application number	US-201514610078-A
Country	US
Kind code	B2
Filing date	Jan 30, 2015
Priority date	Sep 3, 2014
Publication date	Jul 17, 2018
Grant date	Jul 17, 2018

Abstract

A display device may include a first substrate, a second substrate opposite the first substrate, a liquid crystal layer between the first substrate and the second substrate, and a pixel electrode disposed on the first substrate and including a plurality of subpixel electrodes. The subpixel electrode may include a horizontal stem electrode, a plurality of vertical stem electrodes, and a plurality of branch electrodes extending from at least one of the horizontal stem electrode and the vertical stem electrodes.

First claim

What is claimed is:

1. A display device, comprising:
a first substrate;
a data line disposed on the first substrate;
a second substrate opposite the first substrate;
a liquid crystal layer between the first substrate and the second substrate; and
a pixel electrode on the first substrate, the pixel electrode comprising a plurality of subpixel electrodes, wherein each subpixel electrode comprises:
a horizontal stem electrode;
a plurality of vertical stem electrodes;
a plurality of branch electrodes extending from at least one of the horizontal stem electrode and the vertical stem electrodes; and
wherein the plurality of vertical stem electrodes defines at least one slit parallel to the data line.

2. The display device of claim 1 , wherein the first and second substrates have a predetermined radius of curvature.

3. The display device of claim 1 , wherein the horizontal stem electrode is disposed on a horizontally central portion of the subpixel electrode.

4. The display device of claim 1 , wherein the plurality of vertical stem electrodes comprises:
a first vertical stem electrode; and
a second vertical stem electrode spaced apart from the first vertical stem electrode.

5. The display device of claim 4 , further comprising at least one substem electrode between the first and second vertical stem electrodes.

6. The display device of claim 5 , wherein the substem electrode is disposed parallel to the first and second vertical stem electrodes.

7. The display device of claim 1 , wherein the branch electrode comprises:
a first branch electrode extending in an upper left direction from at least one of the horizontal stem electrode and the vertical stem electrodes;
a second branch electrode extending in an upper right direction from at least one of the horizontal stem electrode and the vertical stem electrodes;
a third branch electrode extending in a lower left direction from at least one of the horizontal stem electrode and the vertical stem electrodes; and
a fourth branch electrode extending in a lower right direction from at least one of the horizontal stem electrode and the vertical stem electrodes.

8. The display device of claim 1 , further comprising:
a first alignment layer on the first substrate;
a common electrode on the second substrate; and
a second alignment layer on the second substrate, wherein at least one of the first alignment layer, the second alignment layer, and the liquid crystal layer comprises a photopolymerizable material.

Assignees

• Samsung Display Co Ltd

Inventors

• Woo Su Wan
• Ko Un Byoll

Classifications

• G02F1/133707 Primary

  Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes · CPC title

• G02F1/13624

  having more than one switching element per pixel · CPC title

• G02F2001/134345

  Physics · mapped topic

• G02F1/134345

  Subdivided pixels, e.g. for grey scale or redundancy · CPC title