Display device and method of fabricating the same

Patent metadata

Field	Value
Publication number	US-10847586-B2
Application number	US-201916534908-A
Country	US
Kind code	B2
Filing date	Aug 7, 2019
Priority date	Oct 5, 2018
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

Abstract

A display device may include a display panel including a base layer, in which a display area with a central area and an edge area enclosing the central area is provided, a pixel definition layer having an opening, and an encapsulation layer covering the base layer, and an anti-reflection member including a light-blocking portion overlapping the pixel definition layer and a color filter portion overlapping the opening. The encapsulation layer may include a first portion overlapping the central area and a second portion overlapping the edge area and connected to the first portion. The light-blocking portion may include a first light-blocking pattern disposed on the first portion and covered with the color filter portion and a second light-blocking pattern disposed on the second portion and on the color filter portion.

First claim

What is claimed is:

1. A display device, comprising:
a display panel including a base layer, a pixel definition layer, a light emitting device, and an encapsulation layer;
the base layer including a display area including a central area and an edge area that encloses the central area and a non-display area adjacent to the display area,
the pixel definition layer being disposed in the display area and having an opening,
the light emitting device emitting light through the opening, and
the encapsulation layer covering the pixel definition layer and the light emitting device and comprising a first portion overlapping the central area and a second portion overlapping the edge area and adjacent to the first portion;

an input-sensor comprising conductive patterns that do not overlap the opening and are disposed at different levels on the display panel, and an insulating layer that is disposed between the conductive patterns; and
an anti-reflection member disposed on the input-sensor, the anti-reflection member comprising a light-blocking portion overlapping the pixel definition layer and a color filter portion overlapping the opening,
wherein the light-blocking portion comprises:
a first light-blocking pattern disposed on the first portion and covered with the color filter portion; and
a second light-blocking pattern disposed on the second portion and on the color filter portion.

2. The display device of claim 1 , wherein a first thickness of the first portion is larger than a second thickness of the second portion.

3. The display device of claim 2 , wherein when measured in a thickness direction of the display panel, a distance from a top surface of the base layer to the first light-blocking pattern is substantially same as a distance from the top surface of the base layer to the second light-blocking pattern.

4. The display device of claim 2 , wherein a plurality of openings is provided,
the color filter portion comprises:
a first color pattern, a second color pattern, and a third color pattern that do not overlap respective ones of the plurality of openings and have different colors from each other; and
a partition pattern disposed in the edge area and overlapping the pixel definition layer, and

wherein the partition pattern has a substantially same color as the first color pattern.

5. The display device of claim 4 , wherein, in the central area, the first color pattern, the second color pattern, and the third color pattern are arranged next to one another in sequence, and
in the edge area, the second color pattern and the third color pattern are spaced apart from each other with the partition wall member interposed therebetween.

6. The display device of claim 5 , wherein the first color pattern in the edge area is connected to the partition pattern.

7. The display device of claim 4 , wherein the second light-blocking pattern comprises a first light-blocking layer and a second light-blocking layer containing same materials as the second color pattern and the third color pattern, respectively, and
each of the first light-blocking layer and the second light-blocking layer is disposed on and overlaps the partition pattern.

8. The display device of claim 4 , wherein one color pattern of the first color pattern, the second color pattern, and the third color pattern that overlaps the edge area and is closest to the non-display area includes a recessed area, and
a third thickness of a portion of the one color pattern overlapping the recessed area is substantially same as a fourth thickness of another color pattern adjacent thereto.

9. A display device, comprising:
a display panel including a base layer, a pixel definition layer, a light emitting device, and an encapsulation layer, the base layer including a display area including a central area and an edge area that encloses the central area and a non-display area adjacent to the display area, the pixel definition layer being disposed in the display area and having an opening, the light emitting device emitting light through the opening, and the encapsulation layer covering the pixel definition layer and the light emitting device and comprising a first portion overlapping the central area and a second portion overlapping the edge area and connected to the first portion;
an input-sensor comprising conductive patterns that do not overlap the opening and are disposed at different levels on the display panel, and an insulating layer that is disposed between the conductive patterns; and
an anti-reflection member disposed on the input-sensor, the anti-reflection member comprising a light-blocking portion overlapping the pixel definition layer and a color filter portion overlapping the opening,
wherein the light-blocking portion comprises a first light-blocking pattern that overlaps the first portion and is covered with the color filter portion, and a second light-blocking pattern that overlaps the second portion and is disposed on the color filter portion, and
when measured in a thickness direction of the display panel, a distance from a top surface of the base layer to the first light-blocking pattern is substantially same as a distance from the top surface of the base layer to the second light-blocking pattern.

10. The display device of claim 9 , wherein a first thickness of the first portion is larger than a second thickness of the second portion.

11. The display device of claim 10 , wherein a plurality of openings is provided,
the color filter portion comprises:
a first color pattern, a second color pattern, and a third color pattern that overlap respective ones of the plurality of openings and have different colors from each other; and
a partition pattern disposed in the edge area and overlapping the pixel definition layer, and

wherein the partition pattern has a substantially same color as the first color pattern.

12. The display device of claim 11 , wherein the first light-blocking pattern is covered with first color pattern, second color pattern, and the third color pattern disposed in the central area, and
the second light-blocking pattern is disposed on the partition pattern.

13. The display device of claim 12 , wherein the second light-blocking pattern comprises a first light-blocking layer and a second light-blocking layer that are stacked in sequence,
the first light-blocking layer has a same color as the second color pattern, and
the second light-blocking layer has a same color as the third color pattern.

14. The display device of claim 11 , wherein a plurality of second light-blocking patterns is provided, and
a distance between adjacent ones of the plurality of second light-blocking patterns is larger than a largest distance between adjacent ones of the plurality of openings.

15. The display device of claim 11 , wherein, in the central area, the first color pattern, the second color pattern, and the third color pattern are arranged next to one another in sequence, and
in the edge area, the second color pattern and the third color pattern are spaced apart from each other with the partition wall member interposed therebetween.

16. The display device of claim 11 , wherein a third thickness of the partition pattern is substantially same as a fourth thickness of a portion of the first color pattern overlapping the second portion.

17. A method of fabricating a display device, comprising:
providing a preliminary display panel including a base layer, a pixel definition layer, and light emitting devices, the base layer including a central area and an edge area that encloses the central area

Assignees

• Samsung Display Co Ltd

Inventors

• LEE Hyeonbum

Classifications

• H10K71/00

  Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K59/873

  Encapsulations · CPC title

• H10K59/38

  comprising colour filters or colour changing media [CCM] · CPC title

• H10K59/8792 Primary

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