US 2009/0213307 A1 · PIXEL UNIT, LIQUID CRYSTAL DISPLAY PANEL, ELECTRO-OPTICAL APPARATUS, AND METHODS FOR MANUFACTURING THE SAME

Abstract

A pixel unit having a display area is provided. The pixel unit includes a first substrate, a second substrate, a liquid crystal layer, and at least one ultraviolet light (UV) absorption pattern. The second substrate is disposed in parallel to the first substrate, and the liquid crystal layer is disposed between the first substrate and the second substrate. The UV absorption pattern is disposed between the first substrate and the second substrate. A part of the display area overlaps the UV absorption pattern to define at least one first alignment area, while the part of the display area which does not overlap the UV absorption pattern defines at least one second alignment area. The liquid crystal molecules of the liquid crystal layer present different pre-tilt angles in the first alignment area and the second alignment area.

Claims22

Dependent claims

A pixel unit, having a display area, the pixel unit comprising:

a first substrate;
a second substrate, disposed in parallel to the first substrate;
a liquid crystal layer, disposed between the first substrate and the second substrate;
and
at least one ultraviolet light (UV) absorption pattern, disposed between the first substrate and the second substrate, wherein a part of the display area overlaps the UV absorption pattern to define at least one first alignment area, and the part of the display area which does not overlap the UV absorption pattern defines at least one second alignment area, and the liquid crystal molecules of the liquid crystal layer present different pre-tilt angles in the first alignment area and the second alignment area.

2 more elements

A method for manufacturing a pixel unit, comprising:

providing a semi-finished pixel unit having a display area, and the pixel unit comprises:
a first substrate;
a second substrate disposed in parallel to the first substrate;
a liquid crystal layer disposed between the first substrate and the second substrate;
at least one UV absorption pattern disposed between the first substrate and the second substrate, wherein a part of the display area overlaps the UV absorption pattern to define at least one first alignment area, and the part of the display area which does not overlap the UV absorption pattern defines at least one second alignment area;
and
providing an UV light, wherein the UV light irradiates the liquid crystal layer from a side of the UV absorption pattern away from the liquid crystal layer so that the liquid crystal molecules of the liquid crystal layer present different pre-tilt angles in the first alignment area and the second alignment area.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

12/111,212Filed 29 Apr 2008

Priority

TW 9710663426 Feb 2008

Published

27 Aug 2009

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

G02F 1/133788
By treatment of the surface, e.g. embossing, rubbing or light irradiation: by light irradiation, e.g. linearly polarised light photo-polymerisation
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 1/133757
With different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle: with different alignment…
G02F 1/133761
With different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle: with different pretilt…

Pixel unit, liquid crystal display panel, electro-optical apparatus, and methods for manufacturing the same

Life of this patent

Pixel unit, liquid crystal display panel, electro-optical apparatus, and methods for manufacturing the same

Life of this patent

Abstract

Claims22