Organic light-emitting diode display

Patent metadata

Field	Value
Publication number	US-2016111479-A1
Application number	US-201514659231-A
Country	US
Kind code	A1
Filing date	Mar 16, 2015
Priority date	Oct 21, 2014
Publication date	Apr 21, 2016
Grant date	—

Abstract

An organic light-emitting diode display is disclosed. In one aspect, the display includes a substrate including a bending area and a non-bending area and a plurality of thin-film transistors (TFTs) formed in the non-bending area. The display also includes a plurality of first pixel electrodes and a plurality of second pixel electrodes formed over the TFTs and electrically connected to the TFTs, the first pixel electrodes formed in the bending area and the second pixel electrodes formed in the non-bending area.

First claim

What is claimed is:

1 . An organic light-emitting diode (OLED) display, comprising:
a substrate including a bending area and a non-bending area; a plurality of thin-film transistors (TFTs) formed in the non-bending area; and a plurality of first pixel electrodes and a plurality of second pixel electrodes formed over the TFTs and electrically connected to the TFTs, wherein the first pixel electrodes are formed in the bending area and the second pixel electrodes are formed in the non-bending area.

2 . The OLED display of claim 1 , wherein the number of the TFTs is equal to the sum of the numbers of the first pixel electrodes and the second pixel electrodes.

3 . The OLED display of claim 2 , further comprising a plurality of connection wirings configured to respectively connect the first pixel electrodes to the TFTs.

4 . The OLED display of claim 3 , wherein the connection wirings include a plurality of first connection wirings and a plurality of second connection wirings, and wherein the first and second connection wirings are formed on different layers.

5 . The OLED display of claim 4 , wherein the first connection wirings are electrically connected to a first set of the first pixel electrodes, and wherein the second connection wirings are electrically connected to a second set of the first pixel electrodes different from the first set.

6 . The OLED display of claim 5 , wherein the first set of first pixel electrodes is formed closer to the non-bending area than the second set of first pixel electrodes, and wherein the second connection wirings are formed closer to the substrate than the first connection wirings.

7 . The OLED display of claim 1 , wherein the non-bending area comprises a first area located at one side of the bending area and a second area located at the other side of the bending area, wherein the TFTs are formed in the first area and the second area, wherein at least one of the first pixel electrodes is electrically connected to the TFTs formed in the first area, and wherein the remaining first pixel electrodes are electrically connected to the TFTs formed in the second area.

8 . The OLED display of claim 1 , wherein the TFTs include a plurality of driving TFTs.

9 . An organic light-emitting diode (OLED) display, comprising:
a substrate including a bending area and a non-bending area; a plurality of OLEDs comprising i) a first OLED and a second OLED both formed in the bending area, wherein each of the first and second OLEDs comprises a first pixel electrode, and ii) a third OLED formed in the non-bending area and comprising a second pixel electrode; a plurality of thin-film transistors (TFTs) comprising a first TFT and a second TFT both formed in the non-bending area; and a plurality of connection wirings comprising i) a first wiring configured to electrically connect the first pixel electrode of the first OLED to the first TFT and ii) a second wiring configured to electrically connect the first pixel electrode of the second OLED to the second TFT, wherein the first and second wirings are formed on different layers.

10 . The OLED display of claim 9 , wherein the number of the TFTs is equal to the sum of the numbers of the first and second pixel electrodes.

11 . The OLED display of claim 9 , wherein the non-bending area comprises a first area located at one side of the bending area and a second area located at the other side of the bending area, wherein the TFTs are formed in the first area and the second area, wherein at least one of the first pixel electrodes is electrically connected to the TFTs formed in the first area, and wherein the remaining first pixel electrodes are electrically connected to the TFTs formed in the second area.

12 . The OLED display of claim 9 , wherein the first OLED is formed closer to the non-bending area than the second OLED, and wherein the second wiring is formed closer to the substrate than the first wiring.

13 . The OLED display of claim 9 , wherein the non-bending area comprises a first non-bending area and a second non-bending area, and wherein the bending area is interposed between the first and second non-bending areas.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Younjoon
• Chung Yunmo
• Lee Sangjo

Classifications

• Y02E10/549

  Organic PV cells · CPC title

• H10K77/111 Primary

  Flexible substrates · CPC title

• H10K59/1213

  the pixel elements being TFTs · CPC title

• H10K59/123 Primary

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

• H01L51/0097

  Electricity · mapped topic