Display substrate, method of manufacturing the same and method of manufacturing display panel

Patent metadata

Field	Value
Publication number	US-9329421-B2
Application number	US-201313747985-A
Country	US
Kind code	B2
Filing date	Jan 23, 2013
Priority date	Oct 27, 2009
Publication date	May 3, 2016
Grant date	May 3, 2016

Abstract

In a method of manufacturing a display substrate and a method of manufacturing a display panel, the display substrate includes a color filter layer disposed on a base substrate within a pixel area, a first organic insulating pattern disposed on a first boundary area between adjacent pixel areas, a pixel electrode disposed on the color filter layer, and a first blocking pattern disposed on the first organic insulating pattern. Accordingly, an organic insulating layer corresponding to the pixel area is removed so that deterioration of the display quality by impurities generated from the organic insulating layer may be minimized. In addition, a stepped portion of a blocking pattern disposed between a pixel area and a boundary area of a plurality of the pixel areas is reduced so that motion blurring of a liquid crystal may be prevented.

First claim

What is claimed is:

1. A display substrate, comprising:
a color filter layer disposed on a substrate and within a pixel area;
a first organic insulating pattern disposed on the substrate in a position corresponding to a first boundary area between adjacent pixel areas;
a pixel electrode disposed on the color filter layer;
a first blocking pattern disposed on the first organic insulating pattern; and
an inorganic insulating layer disposed between the color filter layer and the pixel electrode,
wherein the inorganic insulating layer is further disposed between the first organic insulating pattern and the substrate.

2. The display substrate of claim 1 , further comprising a column spacer disposed on the substrate to maintain a cell gap, the column spacer comprising a material identical to a material of the first blocking pattern.

3. The display substrate of claim 1 , wherein the pixel electrode comprises a first sub-pixel electrode disposed in a first sub-pixel area of the pixel area and a second sub-pixel electrode disposed in a second sub-pixel area of the pixel area.

4. The display substrate of claim 3 , further comprising:
a first switching element electrically connected to the first sub-pixel electrode; and
a second switching element electrically connected to the second sub-pixel electrode,
wherein the first switching element and the second switching element are disposed in a second boundary area located between the first sub-pixel electrode and the second sub-pixel electrode.

5. The display substrate of claim 4 , further comprising:
a second organic insulating pattern disposed in the second boundary area; and
a second blocking pattern disposed on the second organic insulating pattern.

6. The display substrate of claim 5 , wherein the inorganic insulating layer is disposed between the second organic insulating pattern and the substrate.

7. The display substrate of claim 1 , further comprising a reactive mesogen layer disposed on the pixel electrode, a reactive mesogen of the reactive mesogen layer arranged at a pretilt angle.

8. A display substrate, comprising:
a color filter layer disposed on a substrate and within a pixel area;
a first organic insulating pattern disposed on the substrate in a position corresponding to a first boundary area between adjacent pixel areas;
a pixel electrode disposed on the color filter layer;
a first blocking pattern disposed on the first organic insulating pattern; and
an inorganic insulating layer disposed between the first organic insulating pattern and the substrate,
wherein the inorganic insulating layer is disposed between the color filter layer and the pixel electrode.

9. The display substrate of claim 8 , further comprising a column spacer disposed on the substrate to maintain a cell gap, the column spacer comprising a material identical to a material of the first blocking pattern.

10. The display substrate of claim 8 , wherein the pixel electrode comprises a first sub-pixel electrode disposed in a first sub-pixel area of the pixel area and a second sub-pixel electrode disposed in a second sub-pixel area of the pixel area.

11. The display substrate of claim 10 , further comprising:
a first switching element electrically connected to the first sub-pixel electrode; and
a second switching element electrically connected to the second sub-pixel electrode,
wherein the first switching element and the second switching element are disposed in a second boundary area located between the first sub-pixel electrode and the second sub-pixel electrode.

12. The display substrate of claim 11 , further comprising:
a second organic insulating pattern disposed in the second boundary area; and
a second blocking pattern disposed on the second organic insulating pattern.

13. The display substrate of claim 12 , wherein the inorganic insulating layer is disposed between the second organic insulating pattern and the substrate.

14. The display substrate of claim 8 , further comprising a reactive mesogen layer disposed on the pixel electrode, a reactive mesogen of the reactive mesogen layer arranged at a pretilt angle.

15. A display substrate, comprising:
a color filter layer disposed on a substrate and within a pixel area;
a first organic insulating pattern disposed on the substrate in a position corresponding to a first boundary area between adjacent pixel areas;
a pixel electrode disposed on the color filter layer;
a first blocking pattern disposed on the first organic insulating pattern; and
an inorganic insulating layer disposed between the first organic insulating pattern and the substrate,
wherein the first organic insulating pattern is disposed on the inorganic insulating layer, and the color filter layer is disposed under the inorganic insulating layer.

16. The display substrate of claim 15 , wherein the inorganic insulating layer comprises silicon nitride.

17. The display substrate of claim 15 , further comprising a column spacer disposed on the substrate to maintain a cell gap, the column spacer comprising a material identical to a material of the first blocking pattern.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Jun-Hyup
• Lyu Jae-Jin

Classifications

• H10D86/481

  integrated with passive devices, e.g. auxiliary capacitors · CPC title

• H10D86/441

  Interconnections, e.g. scanning lines · CPC title

• H10D86/421

  having a particular composition, shape or crystalline structure of the active layer · CPC title

• H10D86/60

  wherein the TFTs are in active matrices · CPC title

• H10D30/6746

  Amorphous silicon · CPC title