Display panel having light shielding member with different thickness

Patent metadata

Field	Value
Publication number	US-12364099-B2
Application number	US-202217886546-A
Country	US
Kind code	B2
Filing date	Aug 12, 2022
Priority date	Nov 1, 2021
Publication date	Jul 15, 2025
Grant date	Jul 15, 2025

Abstract

A display panel includes a display device layer including first to third light emitting areas and a non-tight emitting area and a light shielding member disposed on the display device laver. The light shielding member overlaps the non-light emitting area and includes light shielding openings corresponding to the first to third light emitting areas. A first portion of the light shielding member disposed between the first light emitting area and the second light emitting area has a first thickness at a first edge adjacent to the first light emitting area and a second thickness that is different from the first thickness at a second edge adjacent to the second light emitting area. A second portion of the light shielding member is disposed between the first light emitting area and the third light emitting area and has a uniform thickness.

First claim

What is claimed is:

1. A display panel comprising:
a display device layer comprising a first light emitting area, a second light emitting area spaced apart from the first light emitting area in a column direction, a third light emitting area spaced apart from the first light emitting area in a row direction crossing the column direction, and a non-light emitting area disposed between the first to third light emitting areas; and
a light shielding member disposed on the display device layer, the light shielding member overlaps the on-light emitting area and includes light shielding openings corresponding to the first to third light emitting areas,
wherein a first portion of the light shielding member disposed between the first light emitting area and the second light emitting area has a first thickness at a first edge adjacent to the first light emitting area and a second thickness that is different from the first thickness at a second edge adjacent to the second light emitting area, and
a second portion of the light shielding member disposed between the first light emitting area and the third light emitting area has a uniform thickness.

2. The display panel of claim 1 , wherein the first thickness is less than the second thickness.

3. The display panel of claim 2 , wherein the second portion has a same thickness as the first thickness.

4. The display panel of claim 1 , wherein:
the display device layer fluffier comprises a fourth light emitting area spaced apart from the second light emitting area in the row direction and spaced apart from the third light emitting area in the column direction; and
a third portion disposed between the third light emitting area and the fourth light emitting area in the light shielding member has a third thickness at a third edge adjacent to the third light emitting area and a fourth thickness that is greater than the third thickness at a fourth edge adjacent to the fourth light emitting area.

5. The display panel of claim 4 , wherein:
the third thickness is equal to the first thickness; and
the fourth thickness is equal to the second thickness.

6. The display panel of claim 4 , wherein a fourth portion disposed between the second light emitting area and the fourth light emitting area in the light shielding member has a same thickness as the second portion.

7. The display panel of claim 4 , wherein the first portion and the third portion have an integrated shape extending in the row direction.

8. The display panel of claim 1 , wherein:
in a cross-section, the first portion comprises a first partition wall having the first edge having the first thickness and a second partition wall having the second edge having the second thickness; and
an angle between the first partition wall and the second partition wall is a right angle.

9. The display panel of claim 1 , wherein the first portion has a curved surface having a thickness varying from the first thickness to the second thickness from the first edge to the second edge.

10. The display panel of claim 9 , wherein the curved surface has an irregular shape.

11. The display panel of claim 1 , further comprising:
an encapsulation layer disposed on the display device layer, the encapsulation layer includes inorganic layers and at least one organic layer disposed between the inorganic layers; and
the light shielding member is disposed on the encapsulation layer.

12. The display panel of claim 11 , further comprising:
a cover layer covering the light shielding member; and
the cover layer comprises at least one of an organic material and an inorganic material.

13. The display panel of claim 1 , further comprising:
an encapsulation layer disposed on the display device layer;
an input sensor disposed on the encapsulation layer and comprising mesh lines overlapping the light shielding member and a sensing insulation layer; and
a cover layer covering the light shielding member,
wherein the light shielding member is disposed on the input sensor.

14. The display panel of claim 13 , further comprising an additional light shielding member disposed on the cover layer and an additional cover layer covering the additional light shielding member and disposed on the cover layer.

15. The display panel of claim 1 , wherein the first to third light emitting areas have different surface areas from each other.

16. The display panel of claim 1 , wherein the display device layer comprises: light emitting devices each comprising a first electrode, a second electrode, and a light emitting layer disposed between the first electrode and the second electrode; and a pixel defining layer comprising openings each exposing at least a portion of each of the first electrodes.

17. The display panel of claim 16 , wherein:
the first thickness is less than the second thickness, and the second portion has the same thickness as the first thickness;
each of the openings is defined by inner surfaces of the pixel defining layer; and
one inner surface of the inner surfaces faces a portion having the second thickness in the light shielding member, and each of remaining inner surfaces of the inner surfaces faces a portion having the first thickness on a plane.

18. A display panel comprising:
a display device layer comprising light emitting areas spaced apart from each other in a first direction and a second direction that cross each other, and a non-light emitting area disposed between the light emitting areas; and
a light shielding member disposed on the display device layer, the light shielding member overlaps the non-light emitting area and includes light shielding openings corresponding to the light emitting areas,
wherein a first portion of the light shielding member has a first thickness at a first edge adjacent to a first light emitting area among the light emitting areas and a second thickness less than the first thickness at a second edge spaced apart from the first light emitting area, and
a second portion of the light shielding member facing the first portion in the first direction has a third thickness at a third edge adjacent to the first light emitting area and a fourth thickness greater than the third thickness at a fourth edge spaced further than the second edge from the first light emitting area.

19. The display panel of claim 18 , wherein:
the first thickness is equal to the fourth thickness; and
the second thickness is equal to the third thickness.

20. The display panel of claim 18 , wherein at least one side surface among side surfaces of each of the light emitting areas is adjacent to a portion having the first thickness in the light shielding member, and each of remaining side surfaces of the side surfaces are adjacent to a portion having the second thickness in the light shielding member.

Assignees

• Samsung Display Co Ltd

Inventors

• JEON Bogeon
• Seo Kabjong
• Jang Hokyung

Classifications

• H10K59/873

  Encapsulations · CPC title

• H10K59/8792 Primary

  comprising light absorbing layers, e.g. black layers · CPC title

• H10K59/122

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

• H10K59/40

  OLEDs integrated with touch screens · CPC title

• G06F2203/04112

  Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material · CPC title