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

Patent metadata

Field	Value
Publication number	US-9823524-B2
Application number	US-201615081387-A
Country	US
Kind code	B2
Filing date	Mar 25, 2016
Priority date	Oct 27, 2009
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

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 device comprising:
a switching element disposed on a base substrate;
a data line electrically connected to the switching element;
a gate line electrically connected to the switching element;
an inorganic insulating layer covering the data line and the gate line;
a color filter disposed on the inorganic insulating layer;
a pixel electrode electrically connected to the switching element and disposed on the color filter;
an organic insulating layer disposed on the inorganic insulating layer and comprising a portion disposed on the data line and between adjacent color filters
a light-blocking pattern disposed above the data line and the organic insulating layer, at least a portion of the light-blocking pattern being disposed above the pixel electrode; and
a spacer disposed on the base substrate to maintain a cell gap and comprising a same material as the light-blocking pattern and having a height larger than the light-blocking pattern.

2. The display device of claim 1 , wherein the switching element comprises:
a gate electrode electrically connected to the gate line;
a source electrode electrically connected to the data line; and
a drain electrode electrically connected to the pixel electrode.

3. The display device of claim 1 , further comprising a storage capacitor including a first electrode formed from a same layer as the data line.

4. The display device of claim 3 , wherein the storage capacitor further includes a second electrode formed from a same layer as the gate line.

5. The display device of claim 4 , wherein the light-blocking pattern is further disposed on the first electrode and the second electrode of the storage capacitor.

6. The display device of claim 1 , wherein the organic insulating layer extends to overlap the color filter.

7. The display device of claim 6 , wherein the organic insulating layer overlapping the color filter is disposed on the color filter.

8. The display device of claim 1 , wherein the inorganic insulating layer extends to overlap the switching element.

9. The display device of claim 1 , wherein at least a portion of the light-blocking pattern overlaps the color filter.

10. The display device of claim 1 , wherein at least a portion of the light-blocking pattern overlaps the gate line.

11. The display device of claim 1 , wherein at least a portion of the color filter overlaps the gate line.

12. The display device of claim 1 , wherein the light-blocking pattern is further disposed on the switching element.

13. The display device of claim 1 , further comprising an opposing substrate contacting the spacer.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Jun-Hyup
• Lyu Jae-Jin

Classifications

• H01L27/124

  Electricity · mapped topic

• G02B5/201

  in the form of arrays · CPC title

• G02F1/134309 Primary

  characterised by their geometrical arrangement · CPC title

• H01L27/1222

  Electricity · mapped topic

• G02F1/1368

  in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} · CPC title