IP Library › Granted Patent US 7,468,772
Granted Patent B2
US 7,468,772 · App. 11/528,817 · Granted Dec 23, 2008

Alignment treatment of liquid crystal display device

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,468,772
App. No.
11/528,817
Granted
Dec 23, 2008
Kind
B2
Abstract

A liquid crystal display device including a pair of spaced and opposed substrates, an electrode and an alignment layer formed on one of the substartes and on the other substrates of said substrates, and a liquid crystal filled between the pair of substrates. The liquid crystal has a dielectric constant of negative anistrophy. The alignment layers on the one and the other substrates are formed so that one pixel has four regions divided by a crosswise boundary line in which the alignments of the liquid crystal are mutually different. A shading layer is provided to cover the crosswise boundary line, wherein the shading layer includes a storage capacity electrode formed on one of the substrates, and has a first portion extending in a first direction and a second portion extending in a second direction substantially perpendicular to the first direction.

Claims (11)

1. A liquid crystal display device comprising:

a pair of spaced and opposed substrates;

an electrode and an alignment layer formed on one of said substrates and on the other substrate of said substrates; and

a liquid crystal filled between said pair of substrates;

wherein said liquid crystal has a dielectric constant of negative anisotropy;

said alignment layers on the one and the other substrates are formed so that one pixel has four regions divided by a crosswire boundary line in which the alignments of the liquid crystal are mutually different; and

a shading layer is provided to cover the crosswire boundary line,

wherein said shading layer comprises a storage capacity electrode formed on one of said substrates, and having a first portion extending in a first direction and a second portion extending in a second direction substantially perpendicular to said first direction.

2. A liquid crystal display device according to claim 1 , wherein said alignment layers on the one and the other substrates are treated to realize the alignment with a pretilt angle by irradiation with ultraviolet rays.

3. A liquid crystal display device according to claim 1 , wherein said shading layer comprises said storage capacity electrode and a black matrix.

4. A liquid crystal display device according to claim 1 , wherein a width of said first portion of said storage capacity electrode is greater than a width of said second portion.