US-20260130102-A1 - DISPLAY DEVICE, REPAIRING METHOD THEREOF AND ELECTRONIC DEVICE HAVING THE DISPLAY DEVICE

US20260130102A1US 20260130102 A1US20260130102 A1US 20260130102A1US-20260130102-A1

Abstract

A display device includes a substrate in which a display area including a first area and a second area and a non-display area surrounding at least one side of the display area are defined; a sub-pixel arranged in the display area; a dummy pixel arranged in the non-display area; and a repair line commonly provided to the display area and the non-display area and extending in a first direction. The non-display area includes a first non-display area adjacent to the first area and a second non-display area adjacent to the second area. The repair line includes a first repair line and a second repair line arranged between a first pixel row and a second pixel row of the substrate in the first area. The first repair line and the second repair line face each other in a second direction crossing the first direction.

Inventors

Jong Hyun Choi

Assignees

SAMSUNG DISPLAY CO., LTD.

Dates

Publication Date: 20260507
Application Date: 20250604
Priority Date: 20241107

Claims (20)

1 . A display device, comprising: a substrate in which a display area including a first area and a second area and a non-display area surrounding at least one side of the display area are defined; a sub-pixel arranged in the display area; a dummy pixel arranged in the non-display area; and a repair line commonly provided to the display area and the non-display area and extending in a first direction, wherein the non-display area includes a first non-display area adjacent to the first area and a second non-display area adjacent to the second area, wherein the repair line includes a first repair line and a second repair line arranged between a first pixel row and a second pixel row of the substrate in the first area, wherein each of the first pixel row and the second pixel row extends in the first direction, and wherein the first repair line and the second repair line face each other in a second direction crossing the first direction.
2 . The display device of claim 1 , wherein the dummy pixel includes a first dummy pixel and a second dummy pixel, which are arranged corresponding to each of the first pixel row and the second pixel row in the first non-display area, and the first dummy pixel and the second dummy pixel are arranged adjacent to each other in the first direction.
3 . The display device of claim 2 , wherein the first dummy pixel is electrically connected to one of the first and second repair lines, and the second dummy pixel is electrically connected to the other one of the first and second repair lines.
4 . The display device of claim 3 , wherein the first repair line and the second repair line are electrically isolated from each other.
5 . The display device of claim 4 , wherein, in the first non-display area, the first and second repair lines are arranged between the first and second dummy pixels arranged corresponding to the first pixel row and the first and second dummy pixels arranged corresponding to the second pixel row.
6 . The display device of claim 2 , wherein the sub-pixel is provided in plurality, and each of the plurality of sub-pixels includes a pixel circuit, and wherein pixel circuits of two sub-pixels facing each other in the second direction with the first and second repair lines therebetween in the first area are mirror symmetrical relative to each other.
7 . The display device of claim 6 , further comprising: a plurality of first bridge patterns extending in the second direction and electrically connected to the first repair line; and a plurality of second bridge patterns extending in the second direction, electrically connected to the second repair line, and spaced apart from the plurality of first bridge patterns.
8 . The display device of claim 7 , wherein, in the first area, the plurality of first bridge patterns are formed integrally with the first repair line and protrude from the first repair line in a direction toward the second repair line, and Wherein, in the first area, the plurality of second bridge patterns are formed integrally with the second repair line and protrude from the second repair line in a direction toward the first repair line.
9 . The display device of claim 6 , wherein the sub-pixel further includes: a light-emitting element electrically connected to the pixel circuit and configured to emit light; and a contact electrode electrically connected to an anode electrode of the light-emitting element, and wherein the contact electrode is electrically isolated from the first and second repair lines.
10 . The display device of claim 9 , wherein the contact electrode overlaps the first and second bridge patterns in the first area in a plan view.
11 . The display device of claim 9 , wherein each of the first and second dummy pixels includes a dummy pixel circuit, and wherein dummy pixel circuits of two dummy pixels facing each other in the second direction with the first and second repair lines therebetween are mirror symmetrical relative to each other in the first non-display area.
12 . The display device of claim 11 , wherein the dummy pixel circuit includes a capacitor, wherein the capacitor includes a first electrode and a second electrode arranged on the first electrode with an insulating layer therebetween, and wherein at least one of the first and second repair lines is arranged on the first and second electrodes.
13 . The display device of claim 11 , further comprising a dummy anode electrode located in the non-display area and overlapping the dummy pixel circuit, and wherein the dummy anode electrode is electrically connected to the anode electrode of the sub-pixel arranged in the display area adjacent to the non-display area.
14 . The display device of claim 2 , wherein the repair line further includes a third repair line and a fourth repair line arranged between the first pixel row and the second pixel row in the second area, wherein the dummy pixel further includes a third dummy pixel and a fourth dummy pixel, which are arranged corresponding to each of the first pixel row and the second pixel row in the second non-display area, wherein the third repair line and the fourth repair line face each other in the second direction, and wherein the third dummy pixel and the fourth dummy pixel are arranged adjacent to each other in the first direction.
15 . The display device of claim 14 , wherein the third dummy pixel is electrically connected to one of the third and fourth repair lines, and the fourth dummy pixel is electrically connected to the one of the third and fourth repair lines, and wherein the third repair line and the fourth repair line are electrically isolated from each other.
16 . The display device of claim 15 , wherein the sub-pixel is provided in plurality, and each of the plurality of sub-pixels includes a pixel circuit, and wherein pixel circuits of two sub-pixels facing each other in the second direction with the third and fourth repair lines therebetween in the second area are mirror symmetrical relative to each other.
17 . The display device of claim 15 , further comprising: a plurality of third bridge patterns extending in the second direction and electrically connected to the third repair line; and a plurality of fourth bridge patterns extending in the second direction, electrically connected to the fourth repair line, and spaced apart from the plurality of third bridge patterns, wherein, in the second area, the plurality of third bridge patterns are formed integrally with the third repair line and protrude from the third repair line in a direction toward the fourth repair line, and wherein, in the second area, the plurality of fourth bridge patterns are formed integrally with the fourth repair line and protrude from the fourth repair line in a direction toward the third repair line.
18 . A method of repairing a display device including a substrate in which a display area including a first area and a second area and a non-display area surrounding at least one side of each of the first and second areas are defined, a sub-pixel arranged in the display area and including a pixel circuit, a light-emitting element, and a contact electrode electrically connected to an anode electrode of the light-emitting element, first and second repair lines arranged between a first pixel row and a second pixel row and spaced apart from each other in the display area, a dummy pixel including a first dummy pixel and a second dummy pixel, which are arranged corresponding to each of the first and second pixel rows in the non-display area and connected to the first repair line and the second repair line, respectively, first bridge patterns electrically connected to the first repair line, and second bridge patterns electrically connected to the second repair line, the method comprising: separating a first defective pixel circuit arranged in a first pixel column of the first pixel row from a first light-emitting element corresponding to the first defective pixel circuit; electrically connecting an anode electrode of the first light-emitting element to a dummy pixel circuit of the first dummy pixel by electrically connecting the contact electrode electrically connected to the anode electrode of the first light-emitting element to a corresponding first bridge pattern among the first bridge patterns; separating a second defective pixel circuit arranged in a third pixel column of the first pixel row from a second light-emitting element corresponding to the second defective pixel circuit; and electrically connecting an anode electrode of the second light-emitting element to a dummy pixel circuit of the second dummy pixel by electrically connecting the contact electrode electrically connected to the anode electrode of the second light-emitting element to a second bridge pattern among the second bridge patterns.
19 . The method of claim 18 , wherein the first repair line and the second repair line are electrically isolated from each other.
20 . An electronic device, comprising: a processor for providing input image data to a display device; and the display device for displaying an image based on the input image data, wherein the display device includes: a substrate in which a display area including a first area and a second area and a non-display area surrounding at least one side of the display area are defined; a sub-pixel arranged in the display area; a dummy pixel arranged in the non-display area; and a repair line commonly provided to the display area and the non-display area and extending in a first direction, wherein the non-display area includes a first non-display area adjacent to the first area and a second non-display area adjacent to the second area, wherein the repair line includes a first repair line and a second repair line arranged between a first pixel row and a second pixel row of the substrate in the first area, wherein each of the first pixel row and the second pixel row extends in the first direction, and wherein the first repair line and the second repair line face each other in a second direction crossing the first direction.

Description

This application claims priority to Korean Patent Application Number 10-2024-0157061, filed on Nov. 7, 2024, and all the benefits accruing therefrom under 35 U.S. C. § 119, the content of which in its entirety is herein incorporated by reference. BACKGROUND 1. Field Embodiments of the invention relate to a display device, a method of repairing the same, and an electronic device including the display device. 2. Related Art With the recent increase in interest in information display, research and development of display devices is ongoing. SUMMARY The disclosure provides a display device, a repairing method thereof, and an electronic device including the display device which can improve reliability by preventing a dark spot failure of a pixel. Aspects of some embodiments of the present disclosure include a display device including a substrate in which a display area including a first area and a second area and a non-display area surrounding at least one side of the display area are defined; a sub-pixel arranged in the display area; a dummy pixel arranged in the non-display area; and a repair line commonly provided to the display area and the non-display area and extending in a first direction. The non-display area includes a first non-display area adjacent to the first area and a second non-display area adjacent to the second area. The repair line includes a first repair line and a second repair line arranged between a first pixel row and a second pixel row of the substrate in the first area. Each of the first pixel row and the second pixel row extends in the first direction. The first repair line and the second repair line face each other in a second direction crossing the first direction. According to some embodiments, the dummy pixel may include a first dummy pixel and a second dummy pixel, which are arranged corresponding to each of the first pixel row and the second pixel row in the first non-display area. The first dummy pixel and the second dummy pixel are arranged adjacent to each other in the first direction. According to some embodiments, the first dummy pixel may be electrically connected to one of the first and second repair lines, and the second dummy pixel may be electrically connected to the other one of the first and second repair lines. According to some embodiments, the first repair line and the second repair line may be isolated from each other from each other. According to some embodiments, in the first non-display area, the first and second repair lines may be arranged between the first and second dummy pixels arranged corresponding to the first pixel row and the first and second dummy pixels arranged corresponding to the second pixel row. According to some embodiments, the sub-pixel may be provided in plurality, and each of the plurality of sub-pixels may include a pixel circuit. Pixel circuits of two sub-pixels facing each other in the second direction with the first and second repair lines therebetween in the first area may be mirror symmetrical relative to each other. According to some embodiments, the display device may further include a plurality of first bridge patterns extending in the second direction and electrically connected to the first repair line, and a plurality of second bridge patterns extending in the second direction, electrically connected to the second repair line, and spaced apart from the plurality of first bridge patterns. According to some embodiments, in the first area, the plurality of first bridge patterns are formed integrally with the first repair line and protrude from the first repair line in a direction toward the second repair line. In the first area, the plurality of second bridge patterns are formed integrally with the second repair line and protrude from the second repair line in a direction toward the first repair line. According to some embodiments, the sub-pixel further may include a light-emitting element electrically connected to the pixel circuit and for emitting light, and a contact electrode electrically connected to an anode electrode of the light-emitting element. The contact electrode is electrically isolated from the first and second repair lines. According to some embodiments, the contact electrode may overlap the first and second bridge patterns in the first area in a plan view. According to some embodiments, each of the first and second dummy pixels may include a dummy pixel circuit. Dummy pixel circuits of two dummy pixels facing each other in the second direction with the first and second repair lines therebetween may be mirror symmetrical relative to each other in the first non-display area. According to some embodiments, the dummy pixel circuit may include a capacitor. The capacitor may include a first electrode and a second electrode arranged on the first electrode with an insulating layer therebetween. At least one of the first and second repair lines may be arranged on the first and second electrodes. According to some embodiments