US 2012/0057112 A1Published application

Liquid crystal display unit

AssigneeAu Optronics Corporation

InventorsBo-Wen Ke, Yi-Jhih Ye, Hung-Lung Hou, Ya-Ling Hsu

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Abstract

A liquid crystal display unit including a pixel unit and a quasi-isotropic liquid crystal layer with Kerr effect is provided. The pixel unit includes sub-pixel units, each sub-pixel unit at least has a first transmissive region and a second transmissive region. Each sub-pixel unit includes a switch, a pixel electrode, and a common electrode. Each pixel electrode has first stripe patterns. The common electrode has second stripe patterns, wherein the first stripe patterns and the second stripe patterns are arranged alternately. In the first transmissive region, width of each first stripe pattern is L1, while a gap between each first stripe pattern and the corresponding second stripe pattern adjacent thereto is S1. In the second transmissive regions, width of each first stripe pattern is L2, while a gap between each first stripe pattern and the corresponding second stripe pattern adjacent thereto is S2, wherein L1≠L2 or S1≠S2 or L1/S1≠L2/S2.

Claims25

Dependent claims

A liquid crystal display unit, comprising:

a pixel unit comprising a plurality of sub-pixel units, each of the sub-pixel units at least having a first transmissive region and a second transmissive region, each of the sub-pixel units comprising:
a switch;
a pixel electrode electrically connected to the switch and having a plurality of first stripe patterns;
a common electrode electrically insulated from the pixel electrode and having a plurality of second stripe patterns, the first stripe patterns and the second stripe patterns being arranged alternately, in the first transmissive region, a width of each of the first stripe patterns is L1, and a gap between each of the first stripe patterns and one of the second stripe patterns adjacent thereto is S1, in the second transmissive regions, a width of each of the first stripe patterns is L2, and a gap between each of the first stripe patterns and one of the second stripe patterns adjacent thereto is S2, wherein L1≠L2 or S1≠S2 or L1/S1≠L2/S2;
and
a quasi-isotropic liquid crystal layer disposed above the sub-pixel units, the quasi-isotropic liquid crystal layer being optically isotropic when no voltage is applied thereto, and the quasi-isotropic liquid crystal layer being optically anisotropic when a driving voltage is applied thereto.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/944,735Filed 12 Nov 2010
Priority: TW 991297292 Sep 2010
Published: 8 Mar 2012
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

G02F 1/134363
Characterised by their geometrical arrangement: for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
G02F 1/134345
Characterised by their geometrical arrangement: subdivided pixels, e.g. for grey scale or redundancy
G02F 1/13624
Active matrix addressed cells: having more than one switching element per pixel
G02F 1/13793
Characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction…