Display device including single-layered and multi-layered peripheral regions

Patent metadata

Field	Value
Publication number	US-12446433-B2
Application number	US-202318094443-A
Country	US
Kind code	B2
Filing date	Jan 9, 2023
Priority date	Apr 12, 2022
Publication date	Oct 14, 2025
Grant date	Oct 14, 2025

Abstract

A display device including a base layer including first to third pixel regions and a peripheral region, light emission elements, and a color filter layer. The color filter layer includes a first color filter overlapping the first pixel region and the peripheral region, and including first and second openings, a second color filter overlapping the second pixel region and the peripheral region, and including third and fourth openings, and a third color filter overlapping the third pixel region and the peripheral region, and including fifth and sixth openings. The peripheral region includes a single-layered region not overlapped by the first and second color filters and overlapped by the third color filter and a multi-layered region overlapped by at least two of the first and third color filters. The single-layered region is disposed on an outer side of each of the first to fourth openings in a plan view.

First claim

What is claimed is:

1. A display device comprising:
a base layer including first to third pixel regions and a peripheral region surrounding the first to third pixel regions;
light emission elements that provide a source light to the first to third pixel regions, and that are disposed on the base layer; and
a color filter layer disposed on the light emission elements, wherein:
the color filter layer includes:
a first color filter overlapping the first pixel region and the peripheral region, and including first and second openings respectively overlapping the second and third pixel regions;
a second color filter overlapping the second pixel region and the peripheral region, and including third and fourth openings respectively overlapping the first and third pixel regions; and
a third color filter overlapping the third pixel region and the peripheral region, and including fifth and sixth openings respectively overlapping the first and second pixel regions, and

the peripheral region includes:
a single-layered region not overlapped by the first and second color filters and overlapped by the third color filter; and
a multi-layered region overlapped by at least two of the first to third color filters, wherein the single-layered region is disposed on an outer side of each of the first to fourth openings in a plan view.

2. The display device of claim 1 , wherein:
the first color filter comprises:
a first pattern overlapping the first pixel region; and
a second pattern including the first and second openings, and that is spaced apart from the first pattern, and

the second color filter comprises:
a third pattern including the third opening; and
a fourth pattern overlapping the second pixel region, including the fourth opening, and that is spaced apart from the third pattern.

3. The display device of claim 2 , wherein:
the third pattern covers an outer surface of the first pattern; and
the fourth pattern covers an outer surface of the second pattern and an inner surface of the second pattern defining the second opening.

4. The display device of claim 2 , wherein:
the first pattern covers an outer surface of the third pattern; and
the second pattern covers an outer surface of the fourth pattern and an inner surface of the fourth pattern including the fourth opening.

5. The display device of claim 2 , wherein:
the second pattern includes a first pattern opening surrounding the first pattern;
the fourth pattern includes a second pattern opening surrounding the third pattern; and
an inner surface of the second pattern defining the first pattern opening and an inner surface of the fourth pattern defining the second pattern opening are separated from the first and third patterns.

6. The display device of claim 2 , wherein:
the second pattern comprises:
a first sub-pattern including the first opening; and
a second sub-pattern including the second opening, and spaced apart from the first sub-pattern, and

the fourth pattern comprises:
a third sub-pattern overlapping the second pixel region; and
a fourth sub-pattern including the fourth opening, and that is spaced apart from the third sub-pattern.

7. The display device of claim 1 , wherein:
the second pixel region and the third pixel region are arranged in a direction, and the first pixel region is arranged in a diagonal direction of the direction with respect to each of the second and third pixel regions; and
the single-layered region is not disposed between the first pixel region and the second and third pixel regions.

8. The display device of claim 1 , wherein:
the first to third pixel regions are each provided in a plurality;
the first pixel regions are arranged in a direction, and the second pixel regions and the third pixel regions are arranged crosswise in the direction; and
the single-layered region is not disposed between a second pixel region and a third pixel region which are adjacent to each other among the second pixel regions and the third pixel regions.

9. The display device of claim 1 , wherein in a plan view, an area of the second pixel region is less than an area of the first pixel region, and greater than an area of the third pixel region.

10. The display device of claim 1 , wherein:
the fifth opening overlaps an entirety of the first pixel region and does not overlap the peripheral region, and the sixth opening overlaps an entirety of the second pixel region and does not overlap the peripheral region; and
the third color filter overlaps an entirety of the peripheral region.

11. The display device of claim 1 , wherein:
the fifth opening overlaps an entirety of the first pixel region and in a plan view, an area of the fifth opening is greater than an area of the first pixel region;
the sixth opening overlaps an entirety of the second pixel region and, in a plan view, an area of the sixth opening is greater than an area of the second pixel region; and
the third color filter overlaps all remaining regions of the peripheral region except for a region overlapping the fifth and sixth openings.

12. The display device of claim 1 , wherein a portion of the third color filter overlapping the multi-layered region is disposed on the first and second color filters.

13. The display device of claim 12 , wherein the multi-layered region surrounds each of the first to third pixel regions in a plan view.

14. A display device comprising:
a base layer including first to third pixel regions and a peripheral region surrounding the first to third pixel regions and including first and second regions;
first to third light emission elements that respectively provide a source light to the first to third pixel regions, and that are disposed on the base layer;
an encapsulation layer covering the first to third light emission elements;
a bank portion including first to third bank openings respectively corresponding to the first to third light emission elements thereon, and disposed on the encapsulation layer;
a light control unit including first to third light control patterns disposed respectively corresponding to the first to third bank openings; and
a color filter layer disposed on the light control unit, wherein
the color filter layer includes:
a first color filter overlapping the first pixel region, and not overlapping the second and third pixel regions;
a second color filter overlapping the second pixel region, and not overlapping the first and third pixel regions; and
a third color filter overlapping the third pixel region, and not overlapping the first and second pixel regions,
wherein the first region overlaps only the third color filter, and the second region overlaps two or more of the first to third color filters.

15. The display device of claim 14 , wherein:
the first color filter comprises:
a first pattern overlapping the first pixel region; and
a second pattern including first and second openings respectively overlapping the second and third pixel regions, and spaced apart from the first pattern, and

the second color filter comprises:
a third pattern including a third opening overlapping the first pixel region; and
a fourth pattern overlapping the second pixel region, including a fourth opening overlapping the third pixel region, and spaced apart from the third pattern.

16. The display device of claim 15 , wherein:
the second pattern includes a first pattern opening surrounding the first pattern;
the fourth pattern includes a second pattern opening surrounding the third pattern; and
an inner surface of the second pattern defining the first pattern opening and

Assignees

• Samsung Display Co Ltd

Inventors

• Ryu Jang Wi
• Kim Byung-Chul
• Seong Jaemin
• Song Inseok
• Ji Halim

Classifications

• H10K59/122

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

• H10K59/873

  Encapsulations · CPC title

• H10K50/86

  Arrangements for improving contrast, e.g. preventing reflection of ambient light · CPC title

• H10K50/844

  Encapsulations · CPC title

• H10K59/35

  comprising red-green-blue [RGB] subpixels · CPC title