IP Library Granted Patent US 7,230,669
Granted Patent B1
US 7,230,669 · App. 09/577,032 · Granted Jun 12, 2007

Liquid crystal display and method of fabricating the same

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Quick Facts
Patent No.
US 7,230,669
App. No.
09/577,032
Granted
Jun 12, 2007
Kind
B1
Abstract

An object of the present invention is to provide a liquid crystal display, which can surely perform an instillation process used when liquid crystal is sealed between substrates in a cell process, and a fabrication method thereof. A liquid crystal display comprises a sealing material 6 made of a photo-curing type material which seals liquid crystal 22 sandwiched between substrates 4 and 16 , and a shading film 8 having a shading area which overlays a red-colored layer 28 transmitting red light, a green-colored layer 26 transmitting green light and a blue-colored layer 24 transmitting blue light, wherein only the blue-colored layer 24 is formed in an area of the shading film contacting with the sealing material 6 and the photo-curing type material of the sealing material is structured to have a light reactive area for a wavelength of blue color band.

Claims (25)

1. A liquid crystal display comprising:

a sealing material having a photo-curing type material for sealing liquid crystal sandwiched between two substrates, wherein the photo-curing type material has a light reactive area in a wavelength of blue color band; and

a blue-colored layer, a red-colored layer and a green colored layer formed at an area of a shading film, wherein only the blue-colored layer is in contact with the sealing material.

2. A liquid crystal display provided as set forth in claim 1 , wherein the red-colored layer, the green-colored layer and the blue-colored layer are respectively made of the same material as a forming material of color filters of red, green and blue formed corresponding to each pixel.

3. A liquid crystal display comprising:

a sealing material made of a photo-curing type material sealing liquid crystal sandwiched between two substrates;

a shading film formed on one of the two substrates;

a transfer having colored particles, formed at a lower portion of the shading film, and electrically connected to the two substrates; and

a light incident hole opened at the shading film above the transfer.

4. A liquid crystal display, comprising:

two substrates sandwiching liquid crystal and opposing to each other;

a main seal attaching the two substrates at an external peripheral portion of a display area of the substrates;

a frame-shape structure formed in the area between the main seal and the display area and separating the main seal from the liquid crystal; and

a black matrix picture-frame shading an area between the main seal and the display area,

wherein an external peripheral end of the frame-shape structure and an external peripheral end of the black matrix picture-frame are formed to coincide with each other viewing from a perpendicular direction to the substrates.

5. A liquid crystal display as set forth in claim 4 , wherein the frame-shape structure has a height substantially half or more of that of a spacer arranged in the display area, a perpendicular alignment film being formed on at least one of a surface of the frame-shape structure and an opposing area thereof.

6. A liquid crystal display as set forth in claim 4 , comprising:

a second frame-shape structure formed in an external area from the main seal,

wherein both sides of the main seal are surrounded by the frame-shape structure and the second frame-shape structure.

7. A liquid crystal display as set forth in claim 6 , wherein a part of all of the second frame-shape structure is formed in the black matrix picture-frame and black matrix is not formed on the seal formation area.

8. A liquid crystal display comprising:

two substrates attached opposing each other;

a sealing material formed outside a display area having a plurality of pixels for sealing liquid crystal between two substrates, and

a plurality of structures formed inside the display area of the substrate to which liquid crystal is dropped for changing spreading shape of dropped liquid crystal from a circular shape to a square shape.

9. A liquid crystal display as set forth in claim 8 , wherein the plurality of the structures are formed in an external periphery of a pixel electrode along a long side and a short side of an external shape of the pixel electrode and are not formed in a direction of a diagonal line in the pixel electrode.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 14, 2005
From: FUJITSU LIMITED
To: SHARP KABUSHIKI KAISHA
Reel/Frame 016345/0210 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 13, 2005
From: FUJITSU DISPLAY TECHNOLOGIES CORPORATION
To: FUJITSU LIMITED
Reel/Frame 016345/0310 →