US-12626642-B2 - Display apparatus having reduced non-display region

US12626642B2US 12626642 B2US12626642 B2US 12626642B2US-12626642-B2

Abstract

A display apparatus includes a base substrate including a display region and a peripheral region that is a non-display region surrounding the display region, a plurality of data lines disposed in the display region on the base substrate and extending to the peripheral region, a bypass data line disposed in the display region and the peripheral region on the base substrate and electrically connected to at least one of the data lines, and a dummy pattern spaced apart from the bypass data line and disposed on a same layer as the bypass data line.

Inventors

Min-Jae Jeong
Jae-Yong JANG
Gyung-Soon Park
Kyung-hoon Chung
Chong-Chul Chai

Assignees

SAMSUNG DISPLAY CO., LTD.

Dates

Publication Date: 20260512
Application Date: 20240408
Priority Date: 20181030

Claims (20)

1 . A display apparatus which includes a display region and a peripheral region that is a non-display region surrounding the display region, the display apparatus comprising: a plurality of data lines disposed in the display region and extending to the peripheral region; a bypass data line disposed in the display region and the peripheral region and electrically connected to at least one of the data lines; and a dummy pattern spaced apart from the bypass data line, disposed to form a mesh structure with the bypass data line in a region where the bypass data line is disposed, and disposed to form the mesh structure alone in a region where the bypass data line is not disposed.
2 . The display apparatus of claim 1 , wherein a constant voltage is applied to the dummy pattern.
3 . The display apparatus of claim 2 , further comprising: a first via insulating layer disposed between the data line and the bypass data line; a second via insulating layer disposed on the first via insulating layer on which the bypass data line and the dummy pattern are disposed; a first electrode disposed on the second via insulating layer; a light emitting layer disposed on the first electrode; and a second electrode disposed on the light emitting layer.
4 . The display apparatus of claim 3 , wherein the second via insulating layer includes an organic insulating material.
5 . The display apparatus of claim 4 , wherein a step difference corresponding to the dummy pattern and the bypass data line is formed on an upper surface of the second via insulating layer on the dummy pattern and the bypass data line.
6 . The display apparatus of claim 5 , wherein at least a portion of the first electrode overlaps the dummy pattern or the bypass data line, and a step difference corresponding to the step difference is formed in the first electrode.
7 . The display apparatus of claim 6 , wherein the first electrode includes silver (Ag).
8 . The display apparatus of claim 3 , further comprising: a first power line disposed between the base substrate and the first via insulating layer, a first power voltage being applied to the first power line, wherein the first power line is disposed to overlap the bypass data line or the dummy pattern.
9 . The display apparatus of claim 3 , wherein the bypass data line and the data line contact each other via a contact hole that is formed through the first via insulating layer in the peripheral region.
10 . The display apparatus of claim 1 , wherein the bypass data line includes a vertical part and a horizontal part connected to the vertical part, wherein the dummy pattern includes a plurality of vertical dummy parts and a plurality of horizontal dummy parts, and wherein at least one of the vertical dummy parts extends in the same direction as the vertical part of the bypass data line and at least one of the horizontal dummy parts extends in the same direction as the horizontal part of the bypass data line to form the mesh structure in the region where the bypass data line is disposed.
11 . The display apparatus of claim 1 , wherein the dummy pattern includes a plurality of vertical dummy parts and a plurality of horizontal dummy parts, and the vertical dummy part and the horizontal dummy part are connected to each other to form the mesh structure in the region where the bypass data line is not disposed.
12 . The display apparatus of claim 1 , wherein the display region has a quadrangle shape with rounded corners, wherein the peripheral region includes a pad region in which a pad part is disposed, wherein the data lines include a first data line disposed adjacent to the rounded corners and a second data line spaced apart from the first data line, wherein the first data line is electrically connected to the pad part through the bypass data line, and wherein the second data line is connected to the pad part without connecting to the bypass data line.
13 . The display apparatus of claim 1 , wherein the dummy pattern is disposed on a same layer as the bypass data line.
14 . The display apparatus of claim 1 , further comprising: a shielding electrode physically connected to the dummy pattern.
15 . An electronic apparatus comprising: the display apparatus of claim 1 ; and a processor configured to generate image data, wherein the display apparatus displays an image based on the image data.
16 . A display apparatus which includes a display region and a peripheral region that is a non-display region surrounding the display region, the display apparatus comprising: a plurality of data lines disposed in the display region and extending to the peripheral region; a bypass data line disposed in the display region and the peripheral region and electrically connected to at least one of the data lines; and a dummy pattern spaced apart from the bypass data line and disposed on a same layer as the bypass data line, wherein the display region has a quadrangle shape with rounded corners, wherein the peripheral region includes a pad region in which a pad part is disposed, wherein the data lines include a first data line disposed adjacent to the rounded corners and a second data line spaced apart from the first data line, wherein the first data line is electrically connected to the pad part through the bypass data line, and wherein the second data line is connected to the pad part without connecting to the bypass data line.
17 . The display apparatus of claim 16 , wherein a constant voltage is applied to the dummy pattern.
18 . The display apparatus of claim 17 , further comprising: a first via insulating layer disposed between the data line and the bypass data line; a second via insulating layer disposed on the first via insulating layer on which the bypass data line and the dummy pattern are disposed; a first electrode disposed on the second via insulating layer; a light emitting layer disposed on the first electrode; a second electrode disposed on the light emitting layer; and a first power line disposed between the base substrate and the first via insulating layer, a first power voltage being applied to the first power line, wherein the first power line is disposed to overlap the bypass data line or the dummy pattern.
19 . The display apparatus of claim 18 , wherein the bypass data line and the data line contact each other via a contact hole that is formed through the first via insulating layer in the peripheral region.
20 . An electronic apparatus comprising: the display apparatus of claim 16 ; and a processor configured to generate image data, wherein the display apparatus displays an image based on the image data.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation application of U.S. patent application Ser. No. 17/290,732 filed on Apr. 30, 2021, which claims priority from PCT/KR2019/012423 filed on Sep. 24, 2019, which in turn claims priority from Korean Patent Application No. 10-2018-0130766 filed on Oct. 30, 2018. All the above patent applications are incorporated by reference. TECHNICAL FIELD The present disclosure relates to a display apparatus. More particularly, the present disclosure relates to a display apparatus having an improved display quality by reducing wire stains. BACKGROUND In recent years, owing to advancement of technology, display products with high performance are being produced as the display products become smaller and lighter. Until now, a cathode ray tube (CRT) television has been widely used as a display apparatus because the CRT television has many advantages in terms of performance and price. Recently, however, a display apparatus such as a plasma display apparatus, a liquid crystal display apparatus, an organic light emitting display apparatus, and the like, are attracting attention by offering advantages over the CRT television in size, portability, weight reduction, low power consumption, and the like. The display apparatus includes a display region in which an image is displayed and a peripheral region that is a non-display region around the display region. Along with increasing demands for a display apparatus in which the peripheral region is reduced (e.g., a bezel-less display apparatus, an infinity display apparatus, and the like), there have been efforts to implement a display apparatus of various shapes such as rounded corners of the display region. In addition, the display apparatus includes a signal line and a thin film transistor, and there are problems in which a unique arrangement of the signal line is visible to a user (or viewer) as a “stain.” SUMMARY The present disclosure provides a display apparatus having an improved display quality and a reduced peripheral region (i.e., a non-display region). According to an aspect of embodiments, a display apparatus may include a base substrate including a display region and a peripheral region that is a non-display region surrounding the display region, a plurality of data lines disposed in the display region on the base substrate and extending to the peripheral region, a bypass data line disposed in the display region and the peripheral region on the base substrate and electrically connected to at least one of the data lines, and a dummy pattern spaced apart from the bypass data line and disposed on a same layer as the bypass data line. In embodiments, a constant voltage may be applied to the dummy pattern. In embodiments, the display apparatus may further include a first via insulating layer disposed between the data line and the bypass data line, a second via insulating layer disposed on the first via insulating layer on which the bypass data line and the dummy pattern are disposed, a first electrode disposed on the second via insulating layer, a light emitting layer disposed on the first electrode, and a second electrode disposed on the light emitting layer. In embodiments, the display apparatus may further include a first power line disposed between the base substrate and the first via insulating layer, a first power voltage being applied to the first power line. In addition, the first power line may be disposed to overlap the bypass data line or the dummy pattern. In embodiments, the bypass data line and the data line may contact each other via a contact hole that is formed through the first via insulating layer in the peripheral region. In embodiments, the second via insulating layer may include an organic insulating material. In embodiments, a step difference corresponding to the dummy pattern and the bypass data line may be formed on an upper surface of the second via insulating layer on the dummy pattern and the bypass data line. In embodiments, at least a portion of the first electrode overlaps the dummy pattern or the bypass data line, and a step difference corresponding to the step difference may be formed in the first electrode. In embodiments, the first electrode may include silver (Ag). In embodiments, the bypass data line may include a vertical part and a horizontal part connected to the vertical part, the dummy pattern may include a plurality of vertical dummy parts and a plurality of horizontal dummy parts, at least one of the vertical dummy parts extends in the same direction as the vertical part of the bypass data line, and at least one of the horizontal dummy parts extends in the same direction as the horizontal part of the bypass data line. In embodiments, the dummy pattern may include a plurality of vertical dummy parts and a plurality of horizontal dummy parts, and the vertical dummy part and the horizontal dummy part may be connected to each other to form a mesh structure. In embodime