Display panel

• US 9,841,637 B2
• Filed: 06/17/2015
• Issued: 12/12/2017
• Est. Priority Date: 12/22/2014
• Status: Active Grant

• Current Assignee: InnoLux Corporation
• Original Assignee: InnoLux Corporation
• Inventors: Lee, Kuan-Feng, Huang, Peng-Cheng, Chiang, Kuo-Chang, Yan, Tzu-Min, Liu, Kuei-Ling
• Primary Examiner(s): Nguyen, Sang V
• Application Number:
  US14/742,564
• Publication Number:
  US 20160178951A1
• Time in Patent Office: 909 Days
• CPC Class Codes: G02B 5/201 in the form of arrays
• CPC Class Codes: G02F 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G02F 1/133707 Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
• CPC Class Codes: G02F 1/13394 spacers regularly patterned on the cell subtrate, e.g. walls, pillars G02F1/133377 takes precedence

Abstract

A display panel is provided. The display panel includes a color filter substrate. The color filter substrate includes a first substrate, a black matrix, a color filter layer, a transparent conductive layer, and a plurality of spacers. The black matrix and the color filter layer are disposed on the first substrate. The transparent conductive layer is disposed on the color filter layer and the black matrix, and has a plurality of openings located above the black matrix. The spacers are located on the transparent conductive layer and located on the black matrix. At least one of the openings is located between the adjacent spacers, and at least one of the spacers partially overlaps at least one of the openings.

Claims

1. A display panel, comprising:

a color filter substrate, comprising;

a first substrate;

a color filter layer disposed on the first substrate, the color filter layer having two color resists, wherein the two color resists have different colors, and a recess is formed by the two color resists;

a transparent conductive layer disposed on the color filter layer, wherein the transparent conductive layer has at least one opening and there is no transparent conductive layer disposed in the at least one opening; and

a spacer disposed over the recess, wherein a part of the spacer is located over one of the two color resists, another part of the spacer is located over the other one of the two color resists, a portion of the spacer is disposed in the at least one opening, and another portion of the spacer is disposed on the transparent conductive layer;

wherein at least a portion of the transparent conductor layer is disposed between the spacer and the color filter layer, a width of a bottom part of the spacer is defined as a first width, a width of the recess between the two color resists is defined as a second width, and the first width is greater than the second width.

2. The display panel according to claim 1, wherein the spacer covers 5-50% of an area of the at least one opening.

3. The display panel according to claim 1, wherein the spacer covers 10-30% of an area of the at least one opening.

4. The display panel according to claim 1, wherein the spacer is located on an extension line of a boundary between the two color resists having different colors.

5. The display panel according to claim 4, wherein the bottom of the recess is located off the center of the spacer.

6. The display panel according to claim 4, wherein the two color resists are respectively at least one of a red color resist, a green color resist, or a blue color resist.

7. The display panel according to claim 1, further comprising:

a liquid crystal layer; and

a thin film transistor substrate, wherein the liquid crystal layer is disposed between the thin film transistor substrate and the color filter substrate.

8. The display panel according to claim 7, wherein the thin film transistor substrate comprises a gate line, wherein the spacer and at least one opening are located on the gate line.

9. The display panel according to claim 8, wherein the thin film transistor substrate further comprises a data line, wherein the spacer is located on the data line.

10. The display panel according to claim 7, wherein the color filter substrate further comprises a black matrix disposed on the first substrate, the thin film transistor substrate further comprises a pixel electrode, the spacer is located on the black matrix, and the black matrix and the pixel electrode are overlapping in view of a direction perpendicular to the first substrate.

11. The display panel according to claim 7, wherein the thin film transistor substrate further comprises:

a second substrate; and

a thin film transistor layer disposed on the second substrate.

12. The display panel according to claim 1, wherein the color filter substrate further comprises a black matrix disposed on the first substrate;

and a planarization layer located between the color filter layer and the transparent conductive layer.