Display component including an alignment film having a thickness variation portion on a film forming control portion

Patent metadata

Field	Value
Publication number	US-9921430-B2
Application number	US-201414897712-A
Country	US
Kind code	B2
Filing date	Jul 18, 2014
Priority date	Aug 20, 2013
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

A display component includes a glass substrate GS including a display area AA and a non-display area NAA surrounding the display area AA, a color filter 29 overlapping a surface of the glass substrate GS in the display area AA, a CF board side alignment film 32 disposed in at least the display area AA to cover the color filter 29 and partially including a thickness variation portion 36 that gradually decreases thickness thereof toward an outer side, and a film forming control portion 37 disposed in the non-display area NAA to be next to the display area AA and overlapping the surface of the glass substrate GS and configured to form the CF board side alignment film 32 such that the thickness variation portion 36 is in the non-display area NAA.

First claim

The invention claimed is:

1. A display component comprising:
a base board including a display area and a non-display area surrounding the display area;
a light blocking portion on a surface of the base board in the non-display area;
a display element on a surface of the base board in the display area, the display element including a color filter layer that selectively transmits light having a specific wavelength region;
a film forming control portion on the light blocking portion in the non-display area, the film forming control portion being made of a same material as that of the color filter layer and integral with and extending continuously from the color filter layer; and
an alignment film disposed in the display area and covering the color filter layer and the film forming control portion, and integrally including a thickness variation portion at an outer peripheral edge portion of the alignment film, a thickness of the thickness variation portion decreasing toward an outer edge thereof; wherein
the light blocking portion overlaps the thickness variation portion,
the color filter layer includes color portions that are arranged in a matrix with a planar arrangement in the display area, and
the film forming control portion is continuous from one of the color portions that is at an edge of the display area.

2. The display component according to claim 1 , wherein the film forming control portion surrounds an entire periphery of the display area.

3. The display component according to claim 2 , wherein the film forming control portion has a surface at a height greater than a height of a surface of the color filter layer.

4. The display component according to claim 1 , further comprising:
a second base board to be attached to the base board opposite each other while having a clearance therebetween;
liquid crystals sandwiched between the base board and the second base board; and
a sealing member surrounding the liquid crystals and being between the base board and the second base board and sealing the liquid crystals, wherein
the film forming control portion is closer to the display area than the sealing member and spaced from the second base board while having a clearance therebetween.

5. The display component according to claim 1 , wherein the film forming control portion has a thickness equal to that of the color filter layer.

6. The display component according to claim 1 ,
the film forming control portion is spaced from the sealing member while having a clearance therebetween.

7. A display device comprising the display component according to claim 1 .

8. A television device comprising the display device according to claim claim 7 .

Assignees

• Sharp Kk

Inventors

• Kida Tetsuya
• Sawayama Yutaka
• Okazoe Hiroyuki
• Ihara Yoshiyuki

Classifications

• G02F2001/133388

  Physics · mapped topic

• G02F1/133514

  Colour filters · CPC title

• G02F1/1337 Primary

  Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers · CPC title

• G02F2001/133776

  Physics · mapped topic

• G02F1/133512

  Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence) · CPC title