Display device

Patent metadata

Field	Value
Publication number	US-12538658-B2
Application number	US-202217886793-A
Country	US
Kind code	B2
Filing date	Aug 12, 2022
Priority date	Oct 15, 2021
Publication date	Jan 27, 2026
Grant date	Jan 27, 2026

Abstract

A display device includes a first region including a first light emitting element including a first electrode, a second region including a second light emitting element including a second electrode, a pixel defining layer including a first sidewall defining a first opening corresponding to the first electrode and a second sidewall defining a second opening corresponding to the second electrode, a first spacer which protrudes from the pixel defining layer in the first region and includes a first edge closest to the first opening, and a second spacer which protrudes from the pixel defining layer in the second region and includes a second edge closest to the second opening. A distance between the first sidewall and the first edge, is smaller than a distance between the second sidewall and the second edge.

First claim

What is claimed is:

1 . An electronic device comprising:
a display device comprising:
an outer edge defining a corner of the display device;
a front surface display region having a corner facing the corner of the display device and a first light emitting element which includes a first pixel electrode;
a corner display region which extends bent from the corner of the front surface display region to the corner of the display device, the corner display region having a second light emitting element which includes a second pixel electrode;
a pixel defining layer in the front surface display region and in the corner display region, the pixel defining layer including:
a first sidewall defining a first opening of the pixel defining layer which corresponds to the first pixel electrode, and
a second sidewall defining a second opening of the pixel defining layer which corresponds to the second pixel electrode,

a first spacer which is in the front surface display region, protrudes from the pixel defining layer adjacent to the first opening and includes a first edge closest to the first opening; and
a second spacer which is in the corner display region, protrudes from the pixel defining layer adjacent to the second opening, and includes a second edge closest to the second opening,
wherein among the front surface display region and the corner display region, a distance between the first sidewall of the pixel defining layer and the first edge of the first spacer in the front surface display region is smaller than a distance between the second sidewall of the pixel defining layer and the second edge of the second spacer in the corner display region.

2 . The electronic device of claim 1 , wherein
the pixel defining layer further includes:
a first total area corresponding to the front surface display region, and
a second total area corresponding to the corner display region,
areas of the first spacer and the second spacer which overlap the pixel defining layer, define a first spacer area and a second spacer area, respectively, and among the front surface display region and the corner display region, a ratio of the first spacer area to the first total area in the front surface display region is greater than a ratio of the second spacer area to the second total area in the corner display region.

3 . The electronic device of claim 2 , wherein the first spacer includes:
a first lower protruding portion which defines the first edge of the first spacer, and a first upper protruding portion which extends from the first lower protruding portion and in a direction away from the pixel defining layer.

4 . The electronic device of claim 3 , wherein
the first lower protruding portion of the first spacer defines a first spacer opening of the first spacer which corresponds to the first opening of the pixel defining layer, and the first spacer opening of the first spacer is larger than the first opening of the pixel defining layer.

5 . The electronic device of claim 4 , wherein the second spacer includes:
a second lower protruding portion which defines the second edge of the second spacer, and a second upper protruding portion which extends from the second lower protruding portion and in the direction away from the pixel defining layer.

6 . The electronic device of claim 5 , wherein
the first lower protruding portion of the first spacer has a first height, the second lower protruding portion of the second spacer has a second height, and the second height is smaller than the first height.

7 . The electronic device of claim 5 , wherein
the second lower protruding portion of the second spacer defines a second spacer opening of the second spacer which corresponds to the second opening of the pixel defining layer, and the second spacer opening of the second spacer is larger than the second opening of the pixel defining layer.

8 . The electronic device of claim 7 , wherein the second spacer opening of the second spacer is larger than the first spacer opening of the first spacer.

9 . The electronic device of claim 5 , wherein
within the first spacer, the first upper protruding portion is provided in plural including a plurality of first upper protruding portions spaced apart from each other along the pixel defining layer, and within the second spacer, the second upper protruding portion is provided in plural including a plurality of second upper protruding portions spaced apart from each other along the pixel defining layer.

10 . The electronic device of claim 3 , wherein the second spacer is provided in plural including a plurality of second spacers spaced apart from each other along the pixel defining layer.

11 . The electronic device of claim 10 , wherein
the first lower protruding portion of the first spacer has a first height, each of the plurality of second spacers has a height, and the height of each of the plurality of second spacers is greater than the first height of the first lower protruding portion of the first spacer.

12 . The electronic device of claim 1 , wherein within the display device:
the front surface display region further includes a first side and a second side meeting at the corner of the front surface display region, a first region includes the front surface display region, a first side surface display region extended bent from the first side of the front surface display region, and a second side surface display region extended bent from the second side of the front surface display region, the corner display region is between the first side surface display region and the second side surface display region in a direction along the outer edge of the display device, and among the first region and the second region, a distance between the first sidewall of the pixel defining layer and the first edge of the first spacer in the first side surface display region and the second side surface display region is smaller than the distance between the second sidewall of the pixel defining layer and the second edge of the second spacer in the corner display region.

13 . The electronic device of claim 1 , wherein the display device further comprises:
a first dam in the front surface display region; a plurality of second dams in the corner display region; a first organic encapsulation layer in the front surface display region and adjacent to the first dam; and a plurality of second organic encapsulation layers in the corner display region and adjacent to the plurality of second dams, respectively.

14 . The electronic device of claim 13 , wherein
each of the first organic encapsulation layer and the plurality of second organic encapsulation layers has a thickness, and the thickness of the first organic encapsulation layer is greater than the thickness of each of the plurality of second organic encapsulation layers.

15 . The electronic device of claim 1 , further comprising:
an anti-reflection layer on the display device, the anti-reflection layer including:
a partitioned layer defining a plurality of partitioning openings respectively corresponding to the first opening and the second opening of the pixel defining layer, and
a plurality of color filters respectively corresponding to the plurality of partitioning openings; and
a sensor layer which is between the display device and the anti-reflection layer and senses an external input.

16 . An electronic device comprising:
a display device including:
an outer edge defining a corner of the display device;
a first region including:
a front surface display region having a

Assignees

• Samsung Display Co Ltd

Inventors

• Hyun Jinho
• Yoon Heechang
• Lee Hyoung Sub
• Lee Hyemin
• Sung Woo Yong
• Song Seungyong

Classifications

• H10K59/30

  Devices specially adapted for multicolour light emission · CPC title

• H10K50/865

  comprising light absorbing layers, e.g. light-blocking layers · CPC title

• H10K59/122 Primary

  Pixel-defining structures or layers, e.g. banks · CPC title

• H10K50/844

  Encapsulations · CPC title

• H10K59/40

  OLEDs integrated with touch screens · CPC title