Tiled display device

Patent metadata

Field	Value
Publication number	US-2023057960-A1
Application number	US-202217870350-A
Country	US
Kind code	A1
Filing date	Jul 21, 2022
Priority date	Aug 18, 2021
Publication date	Feb 23, 2023
Grant date	—

Abstract

A tiled display device may include a first panel including a first display element layer; a second panel including a second display element layer; and a shared layer including a color conversion part. The shared layer may include a first portion and a second portion. The first portion may overlap the first panel in a plan view. The second portion may overlap the second panel in a plan view. The color conversion part may change a wavelength of light provided from the first panel and the second panel.

First claim

What is claimed is:

1 . A tiled display device comprising:
a first panel including a first display element layer; a second panel including a second display element layer; and a shared layer including a color conversion part, wherein the shared layer includes a first portion and a second portion; the first portion overlaps the first panel in a plan view, the second portion overlaps the second panel in a plan view, and the color conversion part changes a wavelength of light provided from the first panel and the second panel.

2 . The tiled display device according to claim 1 , wherein
the first panel and the second panel form a lower panel of the tiled display device, and the shared layer forms an upper panel of the tiled display device.

3 . The tiled display device according to claim 1 , wherein
the first panel and the second panel are disposed on a same layer the first panel and the second panel are spaced apart from each other, and a bonding area is disposed between the first panel and the second panel.

4 . The tiled display device according to claim 3 , wherein the bonding area overlaps the shared layer in a plan view.

5 . The tiled display device according to claim 1 , wherein
the color conversion part comprises:
a first color part providing light of a first color;
a second color part providing light of a second color; and
a third color part providing light of a third color, and
the first color part, the second color part, and the third color part overlap the first panel and the second panel in a plan view.

6 . The tiled display device according to claim 5 , further comprising:
a first sub-pixel area emitting the light of the first color and overlapping the first color part in a plan view; a second sub-pixel area emitting the light of the second color and overlapping the second color part in a plan view; and a third sub-pixel area emitting the light of the third color and overlapping the third color part in a plan view.

7 . The tiled display device according to claim 6 , wherein the shared layer further comprises:
a first color filter overlapping the first sub-pixel area in a plan view; a second color filter overlapping the second sub-pixel area in a plan view; and a third color filter overlapping the third sub-pixel area in a plan view.

8 . The tiled display device according to claim 6 , wherein
the first display element layer includes a first light emitting element, the second display element layer includes a second light emitting element, the tiled display device further comprises an emission area in which the first light emitting element and the second light emitting element are disposed, and the emission area is defined by components included in the first display element layer and the second display element layer.

9 . The tiled display device according to claim 8 , wherein
each of the first display element layer and the second display element layer includes a bank protruding in a display direction of the tiled display device, and the bank has a shape enclosing the emission area.

10 . The tiled display device according to claim 8 , wherein the emission area comprises:
a first emission area overlapping the first sub-pixel area in a plan view; a second emission area overlapping the second sub-pixel area in a plan view; and a third emission area overlapping third sub-pixel area in a plan view.

11 . The tiled display device according to claim 10 , wherein
the first color part is disposed to be misaligned from the first emission area in a plan view, the second color part is disposed to be misaligned from the second emission area in a plan view, and the third color part is disposed to be misaligned from the third emission area in a plan view.

12 . The tiled display device according to claim 10 , wherein
at least part of the first color part overlaps the first emission area in a plan view, and other part of the first color part does not overlap the first emission area in a plan view.

13 . The tiled display device according to claim 10 , wherein
the first panel and the first portion of the shared layer form a first display device, the second panel and the second portion of the shared layer form a second display device, in the first display device and the second display device, the first sub-pixel area, the second sub-pixel area, and the third sub-pixel area are adjacent to each other and are spaced apart from each other by a first separation distance, a first adjacent sub-pixel area of the first display device and a second adjacent sub-pixel area of the second display device are spaced apart from each other by a second separation distance, the first adjacent sub-pixel area is an area closest to the second display device, among the first sub-pixel area, the second sub-pixel area, and the third sub-pixel area disposed in the first display device, the second adjacent sub-pixel area is an area closest to the first display device, among the first sub-pixel area, the second sub-pixel area, and the third sub-pixel area disposed in the second display device, and the first separation distance is equal to the second separation distance.

14 . The tiled display device according to claim 13 , wherein
in the first display device and the second display device, the first emission area, the second emission area, and the third emission area are adjacent to each other and are spaced apart from each other by a first emission separation distance, a first adjacent emission area of the first display device and a second adjacent emission area of the second display device are spaced apart from each other by a second emission separation distance, the first adjacent emission area is an area closest to the second display device, among the first emission area, the second emission area, and the third emission area disposed in the first display device, the second adjacent emission area is an area closest to the first display device, among the first emission area, the second emission area, and the third emission area disposed in the second display device, and the first emission separation distance is different from the second emission separation distance.

15 . The tiled display device according to claim 14 , wherein the second emission separation distance is greater than the second separation distance.

16 . The tiled display device according to claim 14 , wherein, when viewed from an outside,
the light of the first color is observed in the first sub-pixel area, the light of the second color is observed in the second sub-pixel area, and the light of the third color is observed in the third sub-pixel area.

17 . The tiled display device according to claim 14 , wherein
the first panel and the second panel are disposed on a same layer, the first panel and the second panel are spaced apart from each other, a bonding area is disposed between the first panel and the second panel, and a thickness of the bonding area is smaller than the second separation distance.

18 . The tiled display device according to claim 5 , wherein
the first color part comprises a first quantum dot converting the light of the third color into the light of the first color, and the second color part comprises a second quantum dot converting the light of the third color into the light of the second color.

19 . The tiled display device according to claim 18 , wherein
the first display element layer includes a first light emitting element, the second display element

Assignees

• Samsung Display Co Ltd

Inventors

• Huh Jong Moo
• Jeong Jin Wook
• Park Sun
• Eom Ki Chang
• Lee Gwang Geun

Classifications

• H10W70/654

  Top-view layouts · CPC title

• H10W70/60

  Insulating or insulated package substrates; Interposers; Redistribution layers (leadframes H10W70/40) · CPC title

• H10W90/00

  Package configurations · CPC title

• H10H29/142

  Two-dimensional arrangements, e.g. asymmetric LED layout · CPC title

• H10H20/882

  Scattering means (H10H20/82 takes precedence) · CPC title