US-12622115-B2 - Display device

US12622115B2US 12622115 B2US12622115 B2US 12622115B2US-12622115-B2

Abstract

A display device includes a base layer having a display area and a non-display area adjacent to the display area, pixels disposed in the display area, first signal lines electrically connected to the pixels and disposed in the display area, and second signal lines electrically connected to the first signal lines, wherein the second signal lines include a first line, a second line, a third line, and a fourth line sequentially disposed on the base layer, and wherein, in a planar view, the first line and the second line do not overlap, and the third line and the fourth line do not overlap.

Inventors

Donghyeon Jang
JunYoung Jo
Hyunae Park
Seungwoo SUNG
Nuree UM
Young-Soo Yoon
Ilgoo Youn
Ji-Eun Lee
Yun-Kyeong In
Seunghan Jo

Assignees

SAMSUNG DISPLAY CO., LTD.

Dates

Publication Date: 20260505
Application Date: 20220404
Priority Date: 20181129

Claims (20)

1 . A display device comprising: a base layer comprising a display area and a non-display area adjacent to the display area; pixels disposed in the display area; first signal lines electrically connected to the pixels and disposed in the display area; and second signal lines electrically connected to the first signal lines, wherein: the second signal lines comprise a first line, a second line, a third line, and a fourth line sequentially arranged along a direction away from the base layer; in a planar view, the first line and the second line do not overlap, the third line and the fourth line do not overlap, portions of the first line and the third line extending parallel to each other partially overlap, and portions of the second line and the fourth line extending parallel to each other partially overlap; and each of the first to fourth lines includes curved portions extending parallel to each other.
2 . The display device of claim 1 , wherein each of the pixels includes a pixel circuit and a light emitting element electrically connected to the pixel circuit, and wherein the pixel circuit includes a capacitor and a transistor including a semiconductor pattern, a control electrode, an input electrode, and an output electrode.
3 . The display device of claim 2 , further comprising a connection electrode connecting the output electrode and the light emitting element.
4 . The display device of claim 3 , wherein the control electrode and a first electrode of the capacitor are disposed on a same layer as the first line, a second electrode of the capacitor opposite to the first electrode of the capacitor is disposed on a same layer as the second line, the input electrode and the output electrode are disposed on a same layer as the third line, and the connection electrode is disposed on a same layer as the fourth line.
5 . The display device of claim 1 , wherein, in the planar view, the first line, the third line, the second line, and the fourth line are alternately arrayed.
6 . The display device of claim 1 , further comprising: a first interlayer insulation layer disposed between the first line and the second line; a second interlayer insulation layer disposed between the second line and the third line; and a third interlayer insulation layer disposed between the third line and the fourth line.
7 . The display device of claim 6 , wherein a thickness of the third interlayer insulation layer is greater than a thickness of the first interlayer insulation layer.
8 . The display device of claim 1 , wherein the second signal lines are disposed in the non-display area.
9 . The display device of claim 1 , wherein, in the planar view, a line area in which the second signal lines are disposed is surrounded by the display area.
10 . The display device of claim 9 , wherein a hole is defined in the base layer, and wherein, in the planar view, the line area surrounds the hole.
11 . The display device of claim 1 , wherein the first signal lines include scan lines and data lines disposed on a layer different from the scan lines, and the data lines are further disposed from the base layer than the scan lines.
12 . The display device of claim 11 , wherein the scan lines are disposed on a same layer as the first line, and the data lines are disposed on a same layer as the fourth line.
13 . The display device of claim 12 , wherein the scan lines include a first scan line electrically connected to the first line, and a second scan line electrically connected to the second line, and the data lines include a first data line electrically connected to the third line and a second data line electrically connected to the fourth line.
14 . A display device comprising: a base layer comprising a display area and a non-display area adjacent to the display area; pixels disposed in the display area; first signal lines electrically connected to the pixels and disposed in the display area; and second signal lines electrically connected to the first signal lines, wherein: the second signal lines comprise a first line, a second line, a third line, and a fourth line disposed on four different layers; the second line is disposed on a layer between the first line and the third line, the third line is disposed on a layer between the second line and the fourth line, and, in a planar view, the first line does not overlap the second line, the third line does not overlap the fourth line, portions of the first line and the third line extending parallel to each other partially overlap, and portions of the second line and the fourth line extending parallel to each other partially overlap; distances between the four different layers and the base layer are different; and each of the first to fourth lines includes curved portions extending parallel to each other.
15 . The display device of claim 14 , wherein the first signal lines include scan lines disposed on a same layer as the first line and data lines disposed on a same layer as the fourth line; the scan lines include a first scan line electrically connected to the first line, and a second scan line electrically connected to the second line, and the data lines include a first data line electrically connected to the third line and a second data line electrically connected to the fourth line.
16 . The display device of claim 14 , wherein a distance between a layer on which the first line is disposed and the layer on which the second line is disposed is smaller than a distance between the layer on which the second line is disposed and the layer on which the third line is disposed.
17 . The display device of claim 14 , wherein the second signal lines are disposed in the non-display area.
18 . The display device of claim 14 , wherein a hole is defined in the base layer, and wherein, in the planar view, a line area in which the second signal lines are disposed surrounds the hole, and the line area is surrounded by the display area.
19 . An electronic device comprising a display device comprising: a base layer comprising a display area and a non-display area adjacent to the display area; pixels disposed in the display area; first signal lines electrically connected to the pixels and disposed in the display area; second signal lines electrically connected to the pixels and disposed in the display area; first connection lines electrically connected to the first signal lines and disposed on a first layer and a second layer different from the first layer; and second connection lines electrically connected to the second signal lines and disposed on a third layer different from the first and second layers, and a fourth layer different from the first to third layers, wherein: in a planar view, one of the first connection line is disposed in a region between two adjacent second connection lines disposed on two different layers among the second connection lines; the first layer or the second layer on which the one of the first connection line is disposed is not between the two different layers on which the adjacent second connection lines is disposed; distances between the first to fourth layers and the base layer are different; and each of the first and second connection lines includes curved portions extending parallel to each other.
20 . The electronic device of claim 19 , wherein a hole is defined in the base layer, and wherein, in the planar view, a line area in which the first connection lines and the second connection lines are disposed surrounds the hole, and the line area is surrounded by the display area.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of U.S. patent application Ser. No. 16/698,943, filed on Nov. 27, 2019, each of which claims priority from and the benefit of Korean Patent Application No. 10-2018-0150963, filed on Nov. 29, 2018, each of which is hereby incorporated by reference for all purposes as if fully set forth herein. BACKGROUND Field Exemplary implementations of the invention relate generally to a display device, and, more specifically, to a display device including electronic module with improved sensing sensitivity and display quality. Discussion of the Background A display device may be a device configured from various electronic components such as a display panel that displays an image, an input sensing member that senses an external input, an electronic module, and the like. The electronic components may be electrically connected with each other through signal lines arrayed in various ways. The display panel includes a light emitting element that generates a light. The input sensing member may include sensing electrodes for sensing an external input. The electronic module may include a camera, an infrared sensing sensor, a proximity sensor or the like. The electronic module may be disposed under the display panel. The above information disclosed in this Background section is only for understanding of the background of the inventive concepts, and, therefore, it may contain information that does not constitute prior art. SUMMARY Devices constructed according to exemplary implementations of the invention provide a display device including an electronic module having improved sensing sensitivity and improved display quality. Additional features of the inventive concepts will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the inventive concepts. According to one or more exemplary embodiments of the invention, a display device includes: a base layer including a first region in which a hole is defined, a second region configured to surround the first region, and a third region configured to surround the second region; a line part disposed on the second region and including a first line, a second line, a third line, and a fourth line disposed on different layers from each other; pixels disposed on the third region; first signal lines electrically connected to the pixels and arrayed along a first direction; and second signal lines electrically connected to the pixels and arrayed along a second direction that intersects with the first direction, wherein one second signal line of the second signal lines is electrically connected to the first line, another second signal line of the second signal lines is electrically connected to the second line, one first signal line of the first signal lines is electrically connected to the third line, and another first signal line of the first signal lines is electrically connected to the fourth line. The display device may further include: a first insulation layer disposed between the first line and the second line; a second insulation layer disposed between the second line and the third line; and a third insulation layer disposed between the third line and the fourth line, wherein the first line, the first insulation layer, the second line, the second insulation layer, the third line, the third insulation layer, and the fourth line are sequentially disposed on the base layer. Each of the pixels may include: a transistor including a control electrode disposed on an identical layer on which the first line is disposed, and an output electrode and an input electrode disposed on an identical layer on which the third line is disposed; a connection electrode disposed on an identical layer on which the fourth line is disposed; and a light emitting element electrically connected to the connection electrode. In a planar view, the first line and the second line may not overlap, and the third line and the fourth line may not overlap. The second line may be disposed between a layer on which the first line is disposed and a layer on which the third line is disposed, and the third line may be disposed between a layer on which the second line is disposed and a layer on which the fourth line is disposed. In the planar view, the first, second, third, and fourth lines may be repeatedly arranged in a sequence of the first line, the third line, the second line, and the fourth line. In the planar view, a part of the third line may overlap a part of the first line, and another part of the third line may overlap a part of the second line. In the planar view, a part of the fourth line may overlap another part of the first line, and another part of the fourth line may overlap another part of the second line. In the planar view, the third line may overlap one of the first line and the second line, and the fourth line may overlap the other one of the first line and the se