US-20260130068-A1 - DISPLAY DEVICE, REPAIRING METHOD THEREOF AND ELECTRONIC DEVICE INCLUDING THE DISPLAY DEVICE

US20260130068A1US 20260130068 A1US20260130068 A1US 20260130068A1US-20260130068-A1

Abstract

A display device includes a substrate in which a display area including first and second areas and a non-display area surrounding a side of the display area are defined, a sub-pixel in the display area, a dummy pixel in the non-display area, and a repair line provided to the display area and the non-display area. The repair line includes first and second repair lines arranged between first and second pixel rows in the first area. The dummy pixel includes first and second dummy pixels arranged corresponding to the first and second pixel rows, respectively. Each of the first and second dummy pixels includes a dummy pixel circuit and a first capacitor. The first capacitor of each of the first and second dummy pixels is between the dummy pixel circuit of the first dummy pixel and the dummy pixel circuit of the second dummy pixel.

Inventors

Jong Hyun Choi

Assignees

SAMSUNG DISPLAY CO., LTD.

Dates

Publication Date: 20260507
Application Date: 20250613
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 a side of the display area are defined; a sub-pixel arranged in the display area; a dummy pixel arranged in the non-display area, the dummy pixel including: a first dummy pixel and a second dummy pixel, each of the first and second dummy pixels including: a dummy pixel circuit; and a first capacitor electrically connected to the dummy pixel circuit; and a repair line commonly provided to the display area and the non-display area and extending in a first direction, the repair line including: 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 the first dummy pixel and the second dummy pixel are arranged corresponding to the first pixel row and the second pixel row, respectively, and wherein the first capacitor of each of the first and second dummy pixels is disposed between the dummy pixel circuit of the first dummy pixel and the dummy pixel circuit of the second dummy pixel.
2 . The display device of claim 1 , wherein the first capacitor of the first dummy pixel and the first capacitor of the second dummy pixel are provided as a single body, and wherein the first dummy pixel and the second dummy pixel share the first capacitor.
3 . The display device of claim 2 , wherein the first repair line and the second repair line extend in the first direction, are spaced apart from each other in a second direction crossing the first direction, and are electrically isolated from each other.
4 . The display device of claim 3 , further including: a first bridge pattern extending in the second direction and electrically connected to the first repair line; and a second bridge pattern extending in the second direction and electrically connected to the second repair line.
5 . The display device of claim 4 , wherein the sub-pixel includes: a transistor arranged on the substrate; a light-emitting element electrically connected to the transistor and emitting light; and a contact electrode electrically connecting the light-emitting element and the transistor.
6 . The display device of claim 5 , wherein the contact electrode is arranged on a semiconductor pattern of the transistor between an insulating layer interposed therebetween, and is electrically connected to the semiconductor pattern of the transistor through a first contact hole passing through the insulating layer.
7 . The display device of claim 6 , wherein the first bridge pattern is disposed on one side of the first contact hole and the second bridge pattern is disposed on an opposite side of the first contact hole opposite to the one side of the first contact hole based on the first contact hole in a plan view.
8 . The display device of claim 6 , wherein the first and second bridge patterns are disposed on one side of the first contact hole based on the first contact hole in a plan view.
9 . The display device of claim 6 , wherein the contact electrode overlaps the first and second bridge patterns, and wherein the contact electrode, the first bridge pattern, and the second bridge pattern are electrically isolated from each other.
10 . The display device of claim 3 , wherein the first dummy pixel is electrically connected to one of the first and second repair lines, and wherein the second dummy pixel is electrically connected to a remaining repair line between the first and second repair lines.
11 . The display device of claim 3 , wherein the sub-pixel includes a pixel circuit, and wherein pixel circuits of two sub-pixels facing each other in the second direction while interposing the first and second repair lines in the first area are mirror symmetrical with respect to each other.
12 . The display device of claim 3 , wherein the sub-pixel includes a transistor arranged on the substrate, a light-emitting element electrically connected to the transistor and emitting light, and a contact electrode electrically connecting the light-emitting element and the transistor, the display device further including a bridge pattern disposed between the sub-pixel arranged in the first pixel row and the sub-pixel arranged in the second pixel row, and connected to a corresponding repair line between the first and second repair lines, wherein the contact electrode of the sub-pixel arranged in the first pixel row overlaps one end of the bridge pattern, and wherein the contact electrode of the sub-pixel arranged in the second pixel row overlaps an opposite end of the bridge pattern opposite to the one end of the bridge pattern.
13 . The display device of claim 12 , wherein in each of the first and second pixel rows, the sub-pixel includes a first sub-pixel, a second sub-pixel, and a third sub-pixel arranged in the first direction, wherein the bridge pattern disposed between the first sub-pixel arranged in the first pixel row and the first sub-pixel arranged in the second pixel row is connected to the first repair line, wherein the bridge pattern disposed between the second sub-pixel arranged in the first pixel row and the second sub-pixel arranged in the second pixel row is connected to the second repair line, and wherein the bridge pattern disposed between the third sub-pixel arranged in the first pixel row and the third sub-pixel arranged in the second pixel row is connected to the first repair line.
14 . The display device of claim 3 , wherein the non-display area includes a first non-display area next to the first area and a second non-display area next to the second area, and wherein the first and second repair lines are arranged between the first and second dummy pixels arranged in the same row as the first pixel row and the first and second dummy pixels arranged in the same row as the second pixel row in the first non-display area.
15 . A display device comprising: a substrate in which a display area and a non-display area surrounding a side of the display area are defined; a sub-pixel arranged in the display area and including a transistor, a light-emitting element electrically connected to the transistor, and a contact electrode electrically connecting the light-emitting element and the transistor; a first repair line and a second repair line extending in a first direction and arranged between a first pixel row and a second pixel row of the substrate; a first dummy pixel and a second dummy pixel arranged in the non-display area and arranged in the first pixel row and the second pixel row, respectively; and a first bridge pattern and a second bridge pattern disposed between the first repair line and the second repair line and extending in a second direction crossing the first direction, wherein the first bridge pattern is connected to the first repair line, and the second bridge pattern is connected to the second repair line, wherein the contact electrode is arranged on a semiconductor pattern of the transistor with an insulating layer interposed therebetween, and is electrically connected to the semiconductor pattern through a first contact hole passing through the insulating layer, and wherein the first bridge pattern is disposed on one side of the first contact hole and the second bridge pattern is disposed on an opposite side of the first contact hole opposite to the one side of the first contact hole, based on the first contact hole.
16 . The display device of claim 15 , wherein the contact electrode overlaps the first and second bridge patterns, and wherein the contact electrode, the first bridge pattern, and the second bridge pattern are electrically isolated from each other.
17 . The display device of claim 15 , wherein each of the first dummy pixel and the second dummy pixel includes a dummy pixel circuit including a first capacitor, and wherein the dummy pixel circuit of the first dummy pixel and the dummy pixel circuit of the second dummy pixel share the first capacitor.
18 . The display device of claim 15 , wherein the first dummy pixel is electrically connected to one of the first and second repair lines, and wherein the second dummy pixel is electrically connected to a remaining repair line between the first and second repair lines.
19 . An electronic device comprising: a processor providing input image data to a display device; and the display device which displays an image based on the input image data, the display device including: a substrate in which a display area including a first area and a second area and a non-display area surrounding a side of the display area are defined; a sub-pixel arranged in the display area; a dummy pixel arranged in the non-display area, the dummy pixel including: a first dummy pixel and a second dummy pixel; and a repair line commonly provided to the display area and the non-display area and extending in a first direction, the repair line including: 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 the first dummy pixel and the second dummy pixel are arranged corresponding to the first pixel row and the second pixel row, respectively, wherein each of the first and second dummy pixels includes a dummy pixel circuit and a first capacitor electrically connected to the dummy pixel circuit, and wherein the first capacitor of each of the first and second dummy pixels is disposed between the dummy pixel circuit of the first dummy pixel and the dummy pixel circuit of the second dummy pixel.
20 . The electronic device of claim 19 , wherein the first capacitor of the first dummy pixel and the first capacitor of the second dummy pixel are provided as a single body, and wherein the first dummy pixel and the second dummy pixel share the first capacitor.

Description

This application claims priority to Korean Patent Application Number 10-2024-0157063, 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 disclosure 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 may improve reliability by preventing a dark spot failure of a pixel. An embodiment of the disclosure includes 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 a 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 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 dummy pixel includes a first dummy pixel and a second dummy pixel arranged corresponding to the first pixel row and the second pixel row, respectively. Each of the first and second dummy pixels includes a dummy pixel circuit and a first capacitor electrically connected to the dummy pixel circuit. The first capacitor of each of the first and second dummy pixels is disposed between the dummy pixel circuit of the first dummy pixel and the dummy pixel circuit of the second dummy pixel. In an embodiment, the first capacitor of the first dummy pixel and the first capacitor of the second dummy pixel may be provided as a single body. The first dummy pixel and the second dummy pixel may share the first capacitor. In an embodiment, the first repair line and the second repair line may extend in the first direction, may be spaced apart from each other in a second direction crossing the first direction, and may be electrically isolated from each other. In an embodiment, the display device may further include a first bridge pattern extending in the second direction and electrically connected to the first repair line; and a second bridge pattern extending in the second direction and electrically connected to the second repair line. In an embodiment, the sub-pixel may include a transistor arranged on the substrate; a light-emitting element electrically connected to the transistor and emitting light; and a contact electrode electrically connecting the light-emitting element and the transistor. In an embodiment, the contact electrode may be arranged on the semiconductor pattern of the transistor between an insulating layer interposed therebetween, and may be electrically connected to the semiconductor pattern of the transistor through a first contact hole passing through the insulating layer. In an embodiment, the first bridge pattern may be disposed on one side of the first contact hole and the second bridge pattern may be disposed on an opposite side of the first contact hole opposite to the one side of the first contact hole on the basis of the first contact hole in a plan view. In an embodiment, the first and second bridge patterns may be disposed on one side of the first contact hole on the basis of the first contact hole in a plan view. In an embodiment, the contact electrode may overlap the first and second bridge patterns. The contact electrode, the first bridge pattern, and the second bridge pattern may be electrically isolated from each other. In an embodiment, 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 a remaining (the other) repair line between the first and second repair lines. In an embodiment, the sub-pixel may include a pixel circuit. Pixel circuits of two sub-pixels facing each other in the second direction while interposing the first and second repair lines in the first area may be mirror symmetrical with respect to each other. In an embodiment, the sub-pixel may include a transistor arranged on the substrate, a light-emitting element electrically connected to the transistor and emitting light, and a contact electrode electrically connecting the light-emitting element and the transistor. The display device further includes a bridge pattern disposed between the sub-pixel arranged in the first pixel row and the sub-pixel arranged in the second pixel row, and connected to a corresponding repair line between the first and second repair lines. The contact electrode of the sub-pixel arranged in the first pixel row overlaps one end of the bridge pattern, and the contact electrode of