Display device

Patent metadata

Field	Value
Publication number	US-2024222553-A1
Application number	US-202318515263-A
Country	US
Kind code	A1
Filing date	Nov 21, 2023
Priority date	Jan 2, 2023
Publication date	Jul 4, 2024
Grant date	—

Abstract

A display device includes pixel electrodes, a pixel defining film and including pixel openings, an encapsulation layer on the pixel electrodes and the pixel defining film, a sensing electrode on the encapsulation layer, a first insulating layer on the sensing electrode and including openings respectively overlapping the pixel openings, and a second insulating layer on the first insulating layer and having a higher refractive index than the first insulating layer, and each of the openings of the first insulating layer includes a main portion including a side and a chamfer portion and an extension protruding from the main portion, and a value obtained by subtracting a width of the extension from a length of a side of the main portion is 2A, and a length of the chamfer portion is B, has a value of 2A/B in a range of about 1 to about 15.

First claim

What is claimed is:

1 . A display device comprising
pixel electrodes disposed on a substrate; a pixel defining film disposed on the pixel electrodes and including pixel openings respectively overlapping the pixel electrodes, an encapsulation layer disposed on the pixel electrodes and the pixel defining film; a sensing electrode disposed on the encapsulation layer; a first insulating layer disposed on the sensing electrode and including openings respectively overlapping the pixel openings; and a second insulating layer disposed on the first insulating layer and having a higher refractive index than a refractive index the first insulating layer, wherein each of the openings of the first insulating layer includes a main portion including a side and a chamfer portion and an extension protruding from the main portion, and in case that a value obtained by subtracting a width of the extension from a length of the side of the main portion is 2A, and a length of the chamfer portion is B, and a value of 2A/B is in a range of about 1 to about 15.

2 . The display device of claim 1 , wherein the width of the extension is in a range of about 1 μm to about 12 μm.

3 . The display device of claim 1 , wherein the length of the chamfer portion is in a range of about 2 μm to about 10 μm.

4 . The display device of claim 1 , wherein a planar shape of the main portion including the chamfer portion is a substantially octagonal shape, and includes four extensions.

5 . The display device of claim 4 , wherein the extensions are disposed in a substantially x shape.

6 . The display device of claim 5 , wherein the extension is disposed at a center of the side of the main portion of the first insulating layer.

7 . The display device of claim 4 , wherein
the first insulating layer includes additional openings, and each of the additional openings includes extensions disposed in a substantially + shape.

8 . The display device of claim 4 , wherein a planar shape of the main portion including the chamfer portion is a substantially regular octagonal shape.

9 . The display device of claim 1 , wherein each of the openings of the first insulating layer includes two extensions, four extensions, or eight extensions.

10 . The display device of claim 9 , wherein two of the extensions form an angle of about 45 degrees, about 90 degrees, about 135 degrees, or about 180 degrees.

11 . A display device comprising:
pixel electrodes disposed on a substrate; a pixel defining film disposed on the pixel electrodes and including pixel openings respectively overlapping the pixel electrodes; an encapsulation layer disposed on the pixel electrodes and the pixel defining film; a sensing electrode disposed on the encapsulation layer; a first insulating layer disposed on the sensing electrode and including openings respectively overlapping the pixel openings; and a second insulating layer disposed on the first insulating layer and having a higher refractive index than a refractive index of the first insulating layer, wherein each of the openings of the first insulating layer includes a main portion and extensions protruding from the main portion, and the main portion includes a protrusion at each corner of the main portion.

12 . The display device of claim 11 , wherein each of the openings of the first insulating layer includes two extensions, four extensions, or eight extensions.

13 . The display device of claim 12 , wherein two of the extensions form an angle of about 45 degrees, about 90 degrees, about 135 degrees, or about 180 degrees.

14 . The display device of claim 11 , wherein a width of the protrusion of the main portion is greater than a width of an extension of the extensions.

15 . The display device of claim 14 , wherein at least one of the extensions protrudes from the protrusion of the main portion.

16 . The display device of claim 15 , wherein a step is formed at a portion in which an extension protruding from the protrusion and the protrusion contact each other.

17 . The display device of claim 14 , wherein at least one of the extensions does not contact the protrusion.

18 . A display device comprising:
pixel electrodes disposed on a substrate; a pixel defining film disposed on the pixel electrodes and including pixel openings respectively overlapping the pixel electrodes; an encapsulation layer disposed on the pixel electrodes and the pixel defining film; a sensing electrode disposed on the encapsulation layer; a first insulating layer disposed on the sensing electrode and including openings respectively overlapping the pixel openings; and a second insulating layer disposed on the first insulating layer and having a higher refractive index than a refractive index of the first insulating layer, wherein each of the openings of the first insulating layer includes a main portion and an extension protruding from the main portion, and a planar shape of the main portion has a substantially regular polygonal shape equal to or greater than a substantially regular octagonal shape.

19 . The display device of claim 18 , wherein each of the openings of the first insulating layer includes two extensions, four extensions, or eight extensions.

20 . The display device of claim 19 , wherein two of the extensions form an angle of about 45 degrees, about 90 degrees, about 135 degrees, or about 180 degrees.

Assignees

• Samsung Display Co Ltd

Inventors

• Ko Gun Woo
• Kim Changwook
• Cho Jung-Hyun
• Park Heung Shik

Classifications

• H10W90/00

  Package configurations · CPC title

• H10H20/852

  Encapsulations · CPC title

• H10H20/819 Primary

  characterised by their shape, e.g. curved or truncated substrates · CPC title

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K59/80

  Constructional details · CPC title