IP Library Granted Patent US 7,977,679
Granted Patent B2
US 7,977,679 · App. 11/755,215 · Granted Jul 12, 2011

Thin film transistor array panel

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Quick Facts
Patent No.
US 7,977,679
App. No.
11/755,215
Granted
Jul 12, 2011
Kind
B2
Abstract

A thin film transistor array panel includes an insulating substrate, a plurality of gate lines formed on the substrate, a plurality of data lines, and an insulating layer. Each of the gate lines include a plurality of gate electrodes. The data lines cross the gate lines with insulation therebetween. Each of the data lines include a plurality of source electrodes. A plurality of drain electrodes face the source electrodes. The insulating layer is formed on the gate lines, the data lines, and the drain electrodes. A plurality of pixel electrodes are formed on the insulating layer and connected to the drain electrodes. The insulating layer has an opening or a trench and the opening or the trench is disposed in a part of the insulating layer that is not covered by the pixel electrodes.

Claims (33)

1. A thin film transistor array panel, comprising:

an insulating substrate;

a plurality of gate lines formed on the substrate, wherein each of the gate lines include a plurality of gate electrodes;

a plurality of data lines disposed on the insulating substrate, wherein each of the data lines include a plurality of source electrodes;

a plurality of drain electrodes facing the source electrodes;

an insulating layer formed on the gate lines, the data lines, and the drain electrodes, wherein at least a portion of the insulating layer is removed to have an opening or a trench and the opening or trench is disposed between adjacent pixel electrodes;

a plurality of pixel electrodes formed on the insulating layer and connected to the drain electrodes; and

a light blocking layer disposed between adjacent pixel electrodes and overlapping the opening or the trench.

2. The thin film transistor array panel of claim 1 , wherein the insulating layer is made of an organic insulating material.

3. The thin film transistor array panel of claim 1 , wherein the light blocking layer is made of a same layer as the gate lines without overlapping the gate lines.

4. The thin film transistor array panel of claim 3 , wherein the light blocking layer overlaps the data lines.

5. The thin film transistor array panel of claim 1 , further comprising a passivation layer formed under the insulating layer and covering the gate lines, the data lines, and the drain electrodes.

6. The thin film transistor array panel of claim 5 , wherein the passivation layer and the insulating layer have a plurality of contact holes to connect the pixel electrodes to the drain electrodes.

7. The thin film transistor array panel of claim 1 , wherein the pixel electrodes include a transparent electrode made of a transparent conductive material and a reflective electrode made of a reflective material.

8. The thin film transistor array panel of claim 7 , wherein the insulating layer has an embossed surface.

9. The thin film transistor array panel of claim 8 , wherein a pixel region occupied by a pixel electrode includes a first region only occupied by the transparent electrode and a second region occupied by the transparent electrode and the reflective electrode.

10. The thin film transistor array panel of claim 1 , wherein the respective adjacent pixel electrodes extend to opposing side walls of the opening or the trench.

11. A thin film transistor array panel, comprising:

an insulating substrate;

a plurality of gate lines formed on the substrate, wherein each of the gate lines include a plurality of gate electrodes;

a plurality of data lines disposed on the insulating substrate, wherein each of the data lines include a plurality of source electrodes;

a plurality of drain electrodes facing the source electrodes;

an insulating layer formed on the gate lines, the data lines, and the drain electrodes;

a plurality of pixel electrodes formed on the insulating layer and connected to the drain electrodes; and

a light blocking layer disposed between adjacent pixel electrodes,

wherein the insulating layer has a trench and the trench is overlapped and disposed within a boundary of the light blocking layer.

12. The thin film transistor array panel of claim 11 , wherein the insulating layer is made of an organic insulating material.

13. The thin film transistor array panel of claim 11 , wherein the light blocking layer overlaps the data lines.

14. The thin film transistor array panel of claim 11 , further comprising a passivation layer formed under the insulating layer and covering the gate lines, the data lines, and the drain electrodes.

15. The thin film transistor array panel of claim 14 , wherein the passivation layer and the insulating layer have a plurality of contact holes to connect the pixel electrodes to the drain electrodes.

16. The thin film transistor array panel of claim 11 , wherein the pixel electrodes include a transparent electrode made of a transparent conductive material and a reflective electrode made of a reflective material.

17. The thin film transistor array panel of claim 16 , wherein the insulating layer has an embossed surface.

18. The thin film transistor array panel of claim 17 , wherein a pixel region occupied by a pixel electrode includes a first region only occupied by the transparent electrode and a second region occupied by the transparent electrode and the reflective electrode.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 17, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029045/0860 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 30, 2007
From: CHO, YONG-SEOK
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 019355/0447 →