Display substrate and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-2016013250-A1
Application number	US-201414538213-A
Country	US
Kind code	A1
Filing date	Nov 11, 2014
Priority date	Jul 9, 2014
Publication date	Jan 14, 2016
Grant date	—

Abstract

A display substrate includes a first switching element electrically connected to a gate line extending in a first direction and a data line extending in a second direction crossing the first direction, an organic layer disposed on the first switching element, a shielding electrode disposed on the organic layer and overlapping the data line, a pixel electrode disposed on the same layer as the shielding electrode and a light-blocking pattern disposed on the shielding electrode and adjacent to a corner of the pixel electrode

First claim

What is claimed is:

1 . A display substrate comprising:
a first switching element electrically connected to a gate line extending in a first direction and a data line extending in a second direction crossing the first direction; an organic layer disposed on the first switching element; a shielding electrode disposed on the organic layer and overlapping the data line; a pixel electrode disposed on the same layer as the shielding electrode; and a light-blocking pattern disposed on the shielding electrode adjacent to a corner of the pixel electrode.

2 . The display substrate of claim 1 , wherein the light-blocking pattern comprises an opaque metal.

3 . The display substrate of claim 2 , wherein the light-blocking pattern has substantially the same width as the shielding electrode.

4 . The display substrate of claim 3 , wherein the light-blocking pattern is formed on the shielding electrode in which four pixel electrodes adjoin.

5 . The display substrate of claim 4 , wherein the four pixel electrodes are a red pixel electrode, a green pixel electrode, a blue pixel electrode and a white pixel electrode.

6 . The display substrate of claim 1 , wherein the light-blocking pattern has a smaller width than that of the shielding electrode.

7 . The display substrate of claim 6 , wherein the light-blocking pattern is formed on the shielding electrode in which four pixel electrodes adjoin.

8 . The display substrate of claim 7 , wherein the four pixel electrodes are a red pixel electrode, a green pixel electrode, a blue pixel electrode and a white pixel electrode.

9 . A display substrate comprising:
a first switching element electrically connected to a gate line extending in a first direction and a data line extending in a second direction crossing the first direction; an organic layer disposed on the first switching element; a light-blocking pattern partially overlapping the organic layer and extending in the second direction to overlap the data line, and a pixel electrode, wherein the light-blocking pattern comprises: a first portion formed as a first width; and a second portion formed as a second width wider than the first width, the second portion being formed adjacent to a corner of the pixel electrode.

10 . The display substrate of claim 9 , wherein the second portion is formed on the data line in which four pixel electrodes adjoin.

11 . The display substrate of claim 10 , wherein the first width is wider than a width of the data line.

12 . The display substrate of claim 11 , wherein the four pixel electrodes are a red pixel electrode, a green pixel electrode, a blue pixel electrode and a white pixel electrode.

13 . The display substrate of claim 10 , wherein the four pixel electrodes are a red pixel electrode, a green pixel electrode, a blue pixel electrode and a white pixel electrode.

14 . A method of manufacturing a display substrate comprising:
forming a first switching element electrically connected to a gate line extending in a first direction and a data line extending in a second direction crossing the first direction on a base substrate; forming an organic layer on the first switching element; forming a transparent electrode layer on the organic layer; forming a light-blocking metal layer on the transparent electrode layer; patterning the light-blocking metal layer to form a light-blocking pattern; and patterning the transparent electrode layer to form a shielding electrode and a pixel electrode.

15 . The method of claim 14 , wherein the light-blocking pattern is disposed on the data line in which adjacent four pixels adjoin.

16 . The display substrate of claim 15 , wherein the four pixel electrodes are a red pixel electrode, a green pixel electrode, a blue pixel electrode and a white pixel electrode.

17 . The display substrate of claim 16 , wherein the forming the transparent electrode layer includes forming a pixel electrode and a shielding electrode, the shielding electrode being disposed on the organic layer and overlapping the data line.

18 . A method of manufacturing a display substrate comprising:
forming a first switching element electrically connected to a gate line extending in a first direction and a data line extending in a second direction crossing the first direction on a base substrate; forming an organic layer on the first switching element; forming a transparent electrode layer on the organic layer; patterning the transparent electrode layer to form a pixel electrode; and forming a light-blocking pattern partially overlapping with the organic layer and extending in the second direction to be overlapped with the data line on the base substrate on which the pixel electrode is formed, and wherein the light-blocking pattern comprises: a first portion formed as a first width; and a second portion disposed at an end of the first portion and formed as a second width wider than the first width.

19 . The display substrate of claim 9 , wherein the second portion is formed on the data line in which four pixel electrodes adjoin.

20 . The method of claim 17 , wherein the four pixel electrodes are a red pixel electrode, a green pixel electrode, a blue pixel electrode and a white pixel electrode.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Hyung-June
• Im Wan-Soon

Classifications

• G02F1/136209 Primary

  Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element · CPC title

• H01L2227/323

  Electricity · mapped topic

• H01L27/3213 Primary

  Electricity · mapped topic

• H01L27/3272

  Electricity · mapped topic

• G02F2001/136222

  Physics · mapped topic