Organic light-emitting diode display

• US 9,858,860 B2
• Filed: 01/11/2016
• Issued: 01/02/2018
• Est. Priority Date: 05/14/2015
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Cho, Sung Ho, So, Dong-Yoon, Kim, Tae Gon, Park, Kyong Tae
• Primary Examiner(s): ABDULSELAM, ABBAS I
• Application Number:
  US14/992,896
• Publication Number:
  US 20160335955A1
• Time in Patent Office: 722 Days
• CPC Class Codes: G09G 2300/0819 used for counteracting undesired variations, e.g. feedback or autozeroing
• CPC Class Codes: G09G 2300/0842 forming a memory circuit, e.g. a dynamic memory with one capacitor
• CPC Class Codes: G09G 2300/0861 with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
• CPC Class Codes: G09G 2330/08 Fault-tolerant or redundant circuits, or circuits in which repair of defects is prepared
• CPC Class Codes: G09G 2330/10 Dealing with defective pixels
• CPC Class Codes: G09G 3/3233 with pixel circuitry controlling the current through the light-emitting element
• CPC Class Codes: H10K 59/1315 comprising structures specially adapted for lowering the resistance
• CPC Class Codes: H10K 71/861 Repairing

Abstract

An organic light-emitting diode display is disclosed. In one aspect, the display includes a substrate including a display area configured to display an image and a peripheral area surrounding the display area, a plurality of scan lines formed over the substrate and a plurality of data lines crossing the scan lines. A plurality of pixels is formed in the display area and electrically connected to the scan lines and the data lines, a repair ring is formed in the peripheral area and surrounding the display area, and the repair ring includes a first portion and a connecting portion different from the first portion. The first portion has a width less than that of the connecting portion different from the first portion. A driving circuit is configured to generate a data signal that is output to the data lines and the repair ring.

Claims

1. An organic light-emitting diode (OLED) display, comprising:

a substrate including a display area displaying an image and a peripheral area surrounding the display area;

a plurality of scan lines on the substrate;

a plurality of data lines crossing the scan lines;

a plurality of pixels on the display area and electrically connected to the scan lines and the data lines;

a repair ring formed in the peripheral area and surrounding the display area, wherein the repair ring includes a first line and a connecting line different from the first line, and wherein the first line has a width less than that of the connecting line different from the first line; and

a driving circuit transferring a data signal to the data lines and the repair ring.

2. The OLED display of claim 1, further comprising a first peripheral signal line formed in the peripheral area and overlapping the first line of the repair ring in the depth dimension of the OLED display.

3. The OLED display of claim 2, wherein the first line of the repair ring is located adjacent to the driving circuit.

4. The OLED display of claim 2, wherein the connecting line comprises a pair of connecting lines, wherein the first line has opposing ends respectively connected to the connecting lines, and wherein the connection lines do not overlap the first line in the depth dimension of the OLED display.

5. The OLED display of claim 1, further comprising an insulating layer on the repair ring and including at least one contact hole, wherein the repair ring further includes a second line overlapping the contact hole.

6. The OLED display of claim 5, wherein the repair ring further includes a contact portion on the repair ring, and wherein the contact portion contacts the second line through the contact hole.

7. The OLED display of claim 5, further comprising a scan circuit formed in the peripheral area and electrically connected to the scan lines, wherein the second line of the repair ring is located adjacent to the scan circuit.

8. The OLED display of claim 1, wherein the repair ring further includes a third line crossing the data lines in the peripheral area, and wherein a second peripheral signal line is disposed in the peripheral area and includes an opening corresponding to the third line of the repair ring.

9. The OLED display of claim 8, wherein the third line of the repair ring is spaced apart from the driving circuit with the display area interposed therebetween.

10. The OLED display of claim 1, wherein the driving circuit further transfers the data signal transferred to an error data line of the data lines to the repair ring.

11. The OLED display of claim 1, wherein the repair ring comprises a left repair ring and a right repair ring.

12. The OLED display of claim 10, wherein the left and right repair rings respectively correspond to left and right halves of the display area.

13. The OLED display of claim 11, wherein the left repair ring is electrically connected to a left portion of the driving circuit, and wherein the right repair ring is electrically connected to a right portion of the driving circuit.

14. An organic light-emitting diode (OLED) display, comprising:

a substrate including a display area displaying an image and a peripheral area surrounding the display area;

a plurality of scan lines on the substrate;

a plurality of data lines crossing the scan lines;

a plurality of pixels on the display area and electrically connected to the scan lines and the data lines;

a repair ring formed in the peripheral area and surrounding the display area, wherein the repair ring includes a first line and contacts an insulating layer at least partially covering the repair ring; and

a driving circuit transferring a data signal to the data lines and the repair ring, wherein the repair ring further includes a contact portion on the substrate and contacts the first line through at least one contact hole.

15. The OLED display of claim 14, further comprising a scan circuit formed in the peripheral area and electrically connected to the scan lines, wherein the first line of the repair ring is located adjacent to the scan circuit.

16. The OLED display of claim 14, wherein the repair ring further includes the a second line different from the first line, wherein the second line crosses the data lines in the peripheral area, and wherein the OLED display further comprises a peripheral signal line formed in the peripheral area and including an opening corresponding to the second line of the repair ring.

17. The OLED display of claim 16, wherein the second line of the repair ring is spaced apart from the driving circuit with the display portion interposed therebetween.

18. An organic light-emitting diode (OLED) display, comprising:

a substrate including a display area displaying an image and a non-display area surrounding the display area;

a plurality of scan lines on the substrate;

a plurality of data lines crossing the scan lines;

a plurality of pixels on the display area and electrically connected to the scan lines and the data lines;

a repair ring formed in the non-display area and surrounding the display area, wherein the repair ring includes a portion crossing the data lines in the non-display area;

a driving circuit transferring a data signal to the data lines and the repair ring; and

a peripheral signal line formed in the peripheral area and including an opening corresponding to the portion of the repair ring.

19. The OLED display of claim 18, wherein the portion of the repair ring is spaced apart from the driving circuit with the display portion interposed therebetween.