Display device

Patent metadata

Field	Value
Publication number	US-2020193917-A1
Application number	US-201916703968-A
Country	US
Kind code	A1
Filing date	Dec 5, 2019
Priority date	Dec 18, 2018
Publication date	Jun 18, 2020
Grant date	—

Abstract

A display device according to an exemplary embodiment of the invention includes: a substrate; an active pattern including a semiconductor material disposed on the substrate; a first conductive layer disposed on the active pattern, the first conductive layer including a plurality of scan lines and a driving gate electrode; a second conductive layer disposed on the first conductive layer, the second conductive layer including an initialization voltage line to transmit an initialization voltage; a third conductive layer disposed on the second conductive layer, the third conductive layer including a driving voltage line to transmit a driving voltage; a fourth conductive layer disposed on the third conductive layer, the first conductive layer including a first data line that transmits a data signal; and a pixel electrode layer disposed on the fourth conductive layer, the pixel electrode layer including a plurality of pixel electrodes, wherein the third conductive layer includes a connection member that is electrically connected with the initialization voltage line, and the first data line includes a projecting portion that extends in a direction away from the connection member.

First claim

What is claimed is:

1 . A display device comprising:
a substrate; an active pattern including a semiconductor material disposed on the substrate; a first conductive layer disposed on the active pattern, the first conductive layer including a plurality of scan lines and a driving gate electrode; a second conductive layer disposed on the first conductive layer, the second conductive layer including an initialization voltage line to transmit an initialization voltage; a third conductive layer disposed on the second conductive layer, the second conductive layer including a driving voltage line to transmit a driving voltage; a fourth conductive layer disposed on the third conductive layer, the fourth conductive layer including a first data line to transmit a data signal; and a pixel electrode layer disposed on the fourth conductive layer, pixel electrode layer including a plurality of pixel electrodes, wherein the third conductive layer comprises a connection member electrically connected with the initialization voltage line, and the first data line comprises a projecting portion that extends in a direction away from the connection member.

2 . The display device of claim 1 , further comprising:
a first insulation layer disposed between the active pattern and the first conductive layer; a second insulation layer disposed between the first conductive layer and the second conductive layer; a third insulation layer disposed between the second conductive layer and the third conductive layer; and a fourth insulation layer disposed between the third conductive layer and the fourth conductive layer, wherein the third insulation layer has a first contact hole extending through the initialization voltage line, the first insulation layer, the second insulation layer, and the third insulation layer have a second contact hole extending through a first conductive region of the active pattern, and the connection member is electrically connected with the initialization voltage line through the first contact hole, and is electrically connected with the first conductive region of the active pattern through the second contact hole.

3 . The display device of claim 2 , wherein the connection member comprises a portion that extends substantially in parallel with the first data line.

4 . The display device of claim 3 , wherein the fourth conductive layer further comprises a second data line that neighbors the first data line in a first direction, a third data line that neighbors the second data line in the first direction, and a fourth data line that neighbors the third data line in the first direction,
the fourth data line and the first data line have shapes that are substantially symmetrical to each other in the first direction, and the third data line and the second data line have shapes that are substantially symmetrical to each other in the first direction.

5 . The display device of claim 4 , wherein the first data line intersects the initialization voltage line, and
the active pattern comprises a portion disposed between the first data line and the initialization voltage line.

6 . The display device of claim 4 , wherein the second data line intersects the initialization voltage line, and
the driving voltage line comprises a portion disposed between the second data line and the initialization voltage line.

7 . The display device of claim 2 , wherein the active pattern further comprises a second conductive region connected with the first conductive region,
the second conductive region is disposed between the first data line and the connection member, and the second conductive layer further comprises a conductive pattern that overlaps the second conductive region.

8 . The display device of claim 7 , wherein the conductive pattern is electrically connected with the driving voltage line.

9 . The display device of claim 8 , wherein the plurality of scan lines comprise a first scan line and a second scan line, and
the conductive pattern is disposed between the first scan line and the second scan line.

10 . The display device of claim 1 , wherein the pixel electrode layer further comprises a plurality of first voltage lines to transmit the driving voltage,
the plurality of first voltage lines are arranged in one direction in a display area where the plurality of pixel electrodes are disposed, and the plurality of first voltage lines extend to an outer area of the display area and are connected with a wire configured to transmit the driving voltage.

11 . The display device of claim 10 , wherein the plurality of first voltage lines are not electrically coupled with the driving voltage line in the display area.

12 . The display device of claim 11 , wherein the projecting portion of the first voltage line comprises a bent portion bent along a periphery of the plurality of pixel electrodes.

13 . The display device of claim 1 , further comprising a common electrode disposed on the plurality of pixel electrodes to receive a common voltage,
wherein the pixel electrode layer further comprises a plurality of first voltage lines to transmit the common voltage, the plurality of first voltage lines are arranged in one direction in a display area where the plurality of pixel electrodes are disposed, and the plurality of first voltage lines extend to an outer area of the display area and are connected with a wire to transmit the common voltage.

14 . A display device comprising:
a substrate; an active pattern including a semiconductor material disposed on the substrate; a first conductive layer disposed on the active pattern, the first conductive layer including a plurality of scan lines and a driving gate electrode; a second conductive layer disposed on the first conductive layer, the second conductive layer including an initialization voltage line that transmits an initialization voltage; a third conductive layer disposed on the second conductive layer, the third conductive layer including a driving voltage line that transmits a driving voltage; a fourth conductive layer disposed on the third conductive layer, the fourth conductive layer including a first data line that transmits a data signal; and a pixel electrode layer disposed on the fourth conductive layer, the pixel electrode layer including a plurality of pixel electrodes, wherein the third conductive layer comprises a connection member electrically connected with the initialization voltage line, the active pattern comprises a first conductive region vertically disposed between the first data line and the connection member, and the second conductive layer further comprises a conductive pattern that overlaps the first conductive region.

15 . The display device of claim 14 , wherein the conductive pattern is electrically connected with the driving voltage line.

16 . The display device of claim 15 , wherein the plurality of scan lines comprise a first scan line and a second scan line, and
the conductive pattern is disposed between the first scan line and the second scan line.

17 . The display device of claim 14 , wherein the active pattern further comprises a second conductive region connected to the first conductive region, and
the connection member is electrically connected to the second conductive region.

18 . A display device comprising:
a substrate; an active pattern including a semiconductor material disposed on the substrate; a first conductive layer disposed on the active pattern, the first conductive layer including a plurality of scan

Assignees

• Samsung Display Co Ltd

Inventors

• Park Gyung Soon
• Woo Min Kyu
• Jeong Jun Ki

Classifications

• G09G3/3208

  organic, e.g. using organic light-emitting diodes [OLED] · CPC title

• H10K59/123

  Connection of the pixel electrodes to the thin film transistors [TFT] · CPC title

• H10K59/131 Primary

  Interconnections, e.g. wiring lines or terminals · CPC title

• H10K59/805

  Electrodes · CPC title

• G09G3/3225

  using an active matrix · CPC title