IP Library Granted Patent US 9,513,504
Granted Patent B2
US 9,513,504 · App. 14/659,713 · Granted Dec 6, 2016

Liquid crystal display and manufacturing method thereof

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Quick Facts
Patent No.
US 9,513,504
App. No.
14/659,713
Granted
Dec 6, 2016
Kind
B2
Abstract

A liquid crystal display includes: a first substrate and a second substrate facing the first substrate; a column spacer disposed on the first substrate; a light blocking member disposed on the second substrate; and a liquid crystal layer disposed between the first substrate and the second substrate. The light blocking member includes a dome shaped portion having a concave surface.

Claims (56)

1. A liquid crystal display, comprising:

a first substrate and a second substrate facing the first substrate;

a column spacer disposed on the first substrate;

a light blocking member disposed on the second substrate to face the column spacer; and

a liquid crystal layer disposed between the first substrate and the second substrate,

wherein the light blocking member includes a dome shaped portion having a concave surface, and

wherein the concave surface facing the column spacer is formed as a dome shape without an angled portion, and

wherein the perimeter of the concave surface is a circular or oval shape.

2. The liquid crystal display of claim 1 , wherein:

the column spacer is disposed at a position that corresponds to the dome shaped portion.

3. The liquid crystal display of claim 2 , wherein:

the light blocking member includes a first light blocking member extended along a data line of a thin film transistor and a second light blocking member extended along a gate line of the thin film transistor.

4. The liquid crystal display of claim 3 , wherein:

the second light blocking member includes the dome shaped portion.

5. The liquid crystal display of claim 1 , wherein:

the liquid crystal display includes a plurality of color filters disposed on the first substrate.

6. The liquid crystal display of claim 5 , wherein:

the column spacer is disposed on the color filters.

7. The liquid crystal display of claim 1 , wherein:

the liquid crystal display includes a plurality of color filters disposed on the second substrate.

8. The liquid crystal display of claim 7 , wherein:

the light blocking member is disposed on the color filters.

9. A method for manufacturing a liquid crystal display, comprising:

forming a color filter on a first substrate;

forming a column spacer on the color filter; and

forming a light blocking member on a second substrate facing the first substrate,

wherein the light blocking member includes a dome shaped portion having a concave surface, and

wherein the concave surface facing the column spacer is formed as a dome shape without an angled portion, and

wherein the perimeter of the concave surface is a circular or oval shape.

10. The method of claim 9 , wherein:

the column spacer is formed at a position that corresponds to the dome shaped portion.

11. The method of claim 9 , wherein:

the forming of a light blocking member comprises:

coating a photoresist on the second substrate;

performing an exposure process by using a mask including a first region, a second region, and a third region; and

developing and curing the photoresist.

12. The method of claim 11 , wherein:

the first region blocks light generated by a light exposer and corresponds to the dome shaped portion, the second region allows the light generated by the light exposer to pass through, and the third region blocks the light generated by the light exposer.

13. The method of claim 12 , wherein:

a height of the dome shaped portion is controlled by controlling a size of the first region.

14. A liquid crystal display, comprising:

a first substrate and a second substrate facing the first substrate;

a column spacer disposed on the first substrate;

a light blocking member disposed on the second substrate to face the column spacer; and

a liquid crystal layer disposed between the first substrate and the second substrate,

wherein the light blocking member has a concave groove in which a portion of the column spacer is configured to be accommodated,

wherein the concave groove is formed as a dome shape without an angled portion, and

wherein the perimeter of the concave groove is a circular or oval shape.

15. The liquid crystal display of claim 14 , wherein:

the center of the concave groove corresponds to a designated location of the column spacer.

16. The liquid crystal display of claim 15 , wherein:

the portion of the column spacer is configured to contact a side portion of the concave groove if the column spacer is relocated from the designated location such that the relocated location of the column spacer does not correspond to the center of the concave groove.

17. The liquid crystal display of claim 15 , wherein:

the concave groove is a dome shape.

18. The liquid crystal display of claim 14 , wherein:

the portion of the column spacer has a convex shape corresponding to the concave groove.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 21, 2022
From: SAMSUNG DISPLAY CO., LTD.
To: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Reel/Frame 060778/0543 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 17, 2015
From: KANG, MIN JUNG; SHIM, YI SEOP; UM, NU REE; HUH, CHUL
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 035178/0801 →