US 2012/0268675 A1Published application

Pixels Having Extra-Planar Fringe Field Amplifiers and Sliced Common Electrodes for Multi-Domain Vertical Alignment Liquid Crystal Displays

AssigneesHiap L. Ong, Kyoritsu Optronics Co., Ltd.

InventorsHiap L. Ong, Juishu Chou

Life of this patent

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Abstract

A multi-domain vertical alignment liquid crystal display using fringe field amplification is disclosed. Each pixel is subdivided into color dots. Further more each pixel contains extra-planar fringe field amplifiers that separate the color dots of a pixel. The voltage polarity of the color dots and extra-planar fringe field amplifiers are arranged so that fringe fields in each color dot causes multiple liquid crystal domains in each color dot. Specifically, the color dots and the extra-planar fringe field amplifiers are arranged so that neighboring polarized elements have opposite polarities. The performance of the display is further enhanced by using a sliced common electrode having common electrode slices over the color dots.

Claims25

Dependent claims

A pixel of a display comprising:

a first color component comprising:
a first first-component color dot having a first side and a second side, wherein the second side of the first first-component color dot is diagonal relative to the first side of the first first-component color dot;
and
a second first-component color dot having a first side and a second side, wherein the second side of the second first-component color dot is diagonal relative to the first side of the second first-component color dot;
a first first-component extra-planar fringe field amplifier comprising:
a first diagonal amplifying portion located between the second side of the first first-component color dot and the second side of the second first-component color dot;
wherein the first first-component color dot and the second first component color dot are on a first plane and the first first-component extra-planar fringe field amplifier is on a second plane.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/341,799Filed 30 Dec 2011
Priority: 15 Sep 2005
Published: 25 Oct 2012
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

G09G 3/3614
Control of matrices with row and column drivers: control of polarity reversal in general
G02F 1/133707
Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers: structures for producing distorted electric fields, e.g.…
G02F 1/134363
Characterised by their geometrical arrangement: for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
G02F 1/1393
Based on orientation effects in which the liquid crystal remains transparent: the birefringence of the liquid crystal being electrically…

Family

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