US-12617174-B2 - Display panel and display apparatus

US12617174B2US 12617174 B2US12617174 B2US 12617174B2US-12617174-B2

Abstract

A display panel includes a display area which includes a center area and a corner area arranged at a corner of the display panel, where a plurality of pixels is arranged in the corner area, and a non-display area arranged outside the display area. The corner area includes a central corner area including a plurality of extension areas each extending in a direction away from the center area and at least partially separated from each other, a first adjacent corner area adjacent to the central corner area, and a second adjacent corner area spaced apart from the first adjacent corner area with the central corner area therebetween, and the non-display area includes a bypass area extending from the first adjacent corner area to the second adjacent corner area to at least partially surround the central corner area.

Inventors

Sangwoo Kim
Hosik SHIN
Hyejin JOO

Assignees

SAMSUNG DISPLAY CO., LTD.

Dates

Publication Date: 20260505
Application Date: 20220518
Priority Date: 20210806

Claims (10)

1 . A display panel comprising: a display area which includes a center area and a corner area arranged at a corner of the display panel, wherein a plurality of pixels is arranged in the corner area; and a non-display area arranged outside the display area, wherein the corner area includes: a central corner area including a plurality of extension areas, each extending in a direction away from the center area and at least partially separated from each other; a first adjacent corner area adjacent to the central corner area; and a second adjacent corner area spaced apart from the first adjacent corner area with the central corner area therebetween, and the non-display area includes a bypass area extending from the first adjacent corner area to the second adjacent corner area to at least partially surround the central corner area, wherein the bypass area extends from each of the plurality of extension areas in the direction away from the center area.
2 . The display panel of claim 1 , wherein the plurality of extension areas and the bypass area are integrally formed with each other as a single unitary unit.
3 . The display panel of claim 2 , wherein a first opening area is defined by being surrounded by the first adjacent corner area, a corresponding one of the plurality of extension areas adjacent to the first adjacent corner area, and the bypass area, wherein the first opening area has a first edge having a shape of a closed curve, and a second opening area is defined by being surrounded by the second adjacent corner area, a corresponding one of the plurality of extension areas adjacent to the second adjacent corner area, and the bypass area, wherein the second opening area has a second edge having a shape of a closed curve.
4 . The display panel of claim 2 , wherein the plurality of extension areas include a first extension area and a second extension area adjacent to each other, a third opening area is defined by being surrounded by the first extension area, the second extension area, and the bypass area, and the third opening area has a third edge having a shape of a closed curve.
5 . The display panel of claim 4 , further comprising: a plurality of driving circuits including a first driving circuit arranged in the first extension area and a second driving circuit arranged in the second extension area, wherein the plurality of pixels include a first pixel arranged in the first extension area and overlapping the first driving circuit and a second pixel arranged in the second extension area and overlapping the second driving circuit, and the third opening area extends between the first driving circuit and the second driving circuit.
6 . The display panel of claim 1 , wherein an opening area is defined by being surrounded by the first adjacent corner area, the plurality of extension areas, the second adjacent corner area, and the bypass area, and the opening area has an edge having a shape of a closed curve.
7 . The display panel of claim 1 , wherein at least a portion of the bypass area has a round shape.
8 . The display panel of claim 1 , further comprising: an inorganic insulating layer arranged in the bypass area; a bypass line arranged on the inorganic insulating layer; and an organic insulating layer arranged on the bypass line.
9 . The display panel of claim 1 , further comprising: a lower organic insulating layer arranged in the bypass area; a bypass line arranged on the lower organic insulating layer; and an organic insulating layer arranged on the bypass line.
10 . The display panel of claim 1 , wherein the display area further includes a first adjacent area extending from the center area in a first direction and a second adjacent area extending from the center area in a second direction crossing the first direction, and the corner area at least partially surrounds the first adjacent area, the center area, and the second adjacent area.

Description

This application claims priority to Korean Patent Application No. 10-2021-0104197, filed on Aug. 6, 2021, 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 One or more embodiments relate to a display panel and a display apparatus. 2. Description of the Related Art Mobile electronic devices, such as tablet personal computers (“PC”s), in addition to small electronic devices, such as mobile phones, have become widely used in various fields. Such mobile electronic devices include displays to provide a user with various functions, for example, visual information such as an image or a video. Recently, with the miniaturization of various components for driving electronic devices, the importance of display apparatuses for electronic devices has continually increased, and a structure to bend a flat display apparatus to have a predetermined angle has been developed. SUMMARY A display apparatus may include a display panel including a display area displaying an image and a non-display area arranged outside the display area. The display area may include a corner area that is bent at a corner, and relatively great stress may be generated in this corner area. One or more embodiments provide a display panel and a display apparatus having the improved reliability with the reduction of a stress generated in a corner area. According to one or more embodiments, a display panel includes a display area which includes a center area and a corner area arranged at a corner of the display panel, where a plurality of pixels is arranged in the corner area, and a non-display area arranged outside the display area. In such embodiments, the corner area includes a central corner area including a plurality of extension areas each extending in a direction away from the center area and at least partially separated from each other, a first adjacent corner area adjacent to the central corner area, and a second adjacent corner area spaced apart from the first adjacent corner area with the central corner area therebetween, and the non-display area includes a bypass area extending from the first adjacent corner area to the second adjacent corner area to at least partially surround the central corner area. In an embodiment, the bypass area may extend from each of the plurality of extension areas, and the plurality of extension areas and the bypass area may be integrally formed with each other as a single unitary unit. In an embodiment, a first opening area may be defined by being surrounded by the first adjacent corner area, a corresponding one of the plurality of extension areas adjacent to the first adjacent corner area, and the bypass area, where the first opening area may have a first edge having a shape of a closed curve, and a second opening area may be defined by being surrounded by the second adjacent corner area, a corresponding one of the plurality of extension areas adjacent to the second adjacent corner area, and the bypass area, where the second opening area may have a second edge having a shape of a closed curve. In an embodiment, the plurality of extension areas may include a first extension area and a second extension area adjacent to each other, a third opening area may be defined by being surrounded by the first extension area, the second extension area, and the bypass area, and the third opening area may have a third edge having a shape of a closed curve. In an embodiment, the display panel may further include a plurality of driving circuits including a first driving circuit arranged in the first extension area and a second driving circuit arranged in the second extension area, where the plurality of pixels may include a first pixel arranged in the first extension area and overlapping the first driving circuit and a second pixel arranged in the second extension area and overlapping the second driving circuit, and the third opening area may extend between the first driving circuit and the second driving circuit. In an embodiment, an opening area may be defined by being surrounded by the first adjacent corner area, the plurality of extension areas, the second adjacent corner area, and the bypass area, and the opening area may have an edge having a shape of a closed curve. In an embodiment, at least a portion of the bypass area may have a round shape. In an embodiment, the display panel may further include an inorganic insulating layer arranged in the bypass area, a bypass line arranged on the inorganic insulating layer, and an organic insulating layer arranged on the bypass line. In an embodiment, the display panel may further include a lower organic insulating layer arranged in the bypass area, a bypass line arranged on the lower organic insulating layer, and an organic insulating layer arranged on the bypass line. In an embodiment, the display area may further include a first adjacent area extending from the center area in a