IP Library Granted Patent US 7,394,517
Granted Patent B2
US 7,394,517 · App. 10/757,610 · Granted Jul 1, 2008

Liquid crystal panel

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Quick Facts
Patent No.
US 7,394,517
App. No.
10/757,610
Granted
Jul 1, 2008
Kind
B2
Abstract

A liquid crystal panel including a driving substrate and a counter substrate, the two substrates having a liquid crystal layer interposed therebetween. The driving substrate has pixel electrodes and transistors connected to the pixel electrodes on a surface thereof, which are covered with an alignment film. The counter substrate is provided adjacent to the alignment film of the driving substrate. The alignment film is rubbed in a direction substantially parallel to signal lines or scanning lines connected to the transistors. Each of the pixels has a projection at a substantially central position in a direction perpendicular to the rubbing direction.

Claims (12)

1. A liquid crystal panel comprising:

a driving substrate;

pixels on a surface of the driving substrate, each of the pixels including a pixel electrode and a transistor connected to the pixel electrode;

signal lines and scanning lines connected to the transistors;

an alignment film rubbed in a direction substantially parallel to the signal lines or the scanning lines;

a counter substrate adjacent the alignment film;

a liquid crystal layer between the driving substrate and the counter substrate; and

at least one projection provided in each of the pixels on the pixel electrode at a substantially central position, relative to two opposite boundaries of the corresponding pixel, the two opposite boundaries being parallel to the rubbing direction, the central position being adjacent to a starting position of the rubbing direction and to a boundary not being parallel to the rubbing direction.

2. The liquid crystal panel according to claim 1 , wherein liquid crystal molecules of the liquid crystal layer have a pre-tilt angle of 4° to 20°.

3. The liquid crystal panel according to claim 1 , wherein each of the pixels has a reflective display portion and a transmissive display portion provided in that order in the rubbing direction.

4. The liquid crystal panel according to claim 1 , further comprising walls extending along the borders between adjacent pixels in a direction substantially perpendicular to the rubbing direction.

5. The liquid crystal panel according to claim 3 , wherein the at least one projection is provided on the reflective display portion near a corresponding scanning line.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 8, 2013
From: SONY CORPORATION
To: JAPAN DISPLAY WEST INC.
Reel/Frame 031377/0874 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 14, 2004
From: NOGUCHI, KOJI; TATEMORI, SHUICHI; ISHIGE, OSAMU
To: SONY CORPORATION
Reel/Frame 014894/0641 →