IP Library Granted Patent US 7,847,901
Granted Patent B2
US 7,847,901 · App. 12/689,075 · Granted Dec 7, 2010

Liquid crystal display

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Quick Facts
Patent No.
US 7,847,901
App. No.
12/689,075
Granted
Dec 7, 2010
Kind
B2
Abstract

A liquid crystal display includes a substrate, a pixel electrode disposed on the substrate and including a first subpixel electrode and a second subpixel electrode, and a common electrode facing the pixel electrode. The first subpixel electrode comprises a first edge, a second edge disposed opposite the first edge, and two first oblique edges substantially parallel to each other, the first oblique edges making an oblique angle with the first edge and the second edge and meeting the first edge. The second subpixel electrode comprises a first edge, a second edge disposed opposite the first edge, and two first oblique edges substantially parallel to or substantially perpendicular to the first oblique edges of the first subpixel electrode, the first oblique edges of the second subpixel electrode meeting the first edge of the second subpixel electrode. The first edge of the first subpixel electrode is adjacent to the first edge of the second subpixel electrode, and a length of the first edge of the first subpixel electrode is different from a length of the first edge of the second subpixel electrode. The first oblique edges of the first subpixel electrode are offset from the first oblique edges of the second subpixel electrode.

Claims (12)

1. A liquid crystal display comprising:

a pixel electrode comprising a first subpixel electrode and a second subpixel electrode, each of the first and the second subpixel electrodes including two oblique edges disposed opposite each other and substantially parallel to each other, wherein the first and the second subpixel electrodes are arranged in a direction oblique to the oblique edges;

a common electrode disposed opposite the pixel electrode;

a liquid crystal layer disposed between the pixel electrode and the common electrode;

a first tilt direction determining member provided at the second subpixel electrode, extending substantially parallel to the oblique edges, and determining a tilt direction of liquid crystal molecules in the liquid crystal layer; and

a plurality of second tilt direction determining members provided at the common electrode and determining tilt directions of the liquid crystal molecules, each second tilt direction determining member comprising a first portion substantially parallel to the oblique edges and either disposed between the oblique edges or between one of the oblique edge and the first tilt direction determining member,

wherein each of the first and the second subpixel electrodes is divided into a plurality of sub-areas by the first or the second tilt direction determining members and the oblique edges,

the number of the sub-areas in the first subpixel electrode is different from the number of the sub-areas in the second subpixel electrode, and

the oblique edges of the first subpixel electrode are offset from the oblique edges of the second subpixel electrode.

2. The liquid crystal display of claim 1 , further comprising a polarizer having a polarization axis making an angle of about 45 degrees with the oblique edges of the first subpixel electrode and the oblique edges of the second subpixel electrode.

3. The liquid crystal display of claim 1 , wherein the sub-areas have substantially equal area.

4. The liquid crystal display of claim 1 , wherein an area of each of the sub-areas is relatively smaller in relation to a distance of the sub-area from the oblique edges.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 17, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029045/0860 →