Display device

Patent metadata

Field	Value
Publication number	US-2020258944-A1
Application number	US-201916509272-A
Country	US
Kind code	A1
Filing date	Jul 11, 2019
Priority date	Feb 11, 2019
Publication date	Aug 13, 2020
Grant date	—

Abstract

A display device is provided. A display device includes a plurality of pixels arranged in a row axis and in a column axis that intersects the row axis, a first substrate on which a light-emitting element disposed in each of the pixels is disposed, a second substrate which faces the first substrate, and a first wavelength conversion pattern disposed on the second substrate in a first pixel column and which converts wavelength of light emitted from the light-emitting element. The first wavelength conversion pattern includes a first main pattern part arranged in a stripe fashion along the column axis and a protruding pattern part projected from the first main pattern part toward at least one of first and second directions of the row axis.

First claim

What is claimed is:

1 . A display device, comprising:
a plurality of pixels arranged in a row axis and in a column axis that intersects the row axis; a first substrate on which a light-emitting element disposed in each of the pixels is disposed; a second substrate which faces the first substrate; and a first wavelength conversion pattern disposed on the second substrate in a first pixel column and which converts wavelength of light emitted from the light-emitting element, wherein the first wavelength conversion pattern includes a first main pattern part arranged in a stripe fashion along the column axis and a protruding pattern part projected from the first main pattern part toward at least one of first and second directions of the row axis.

2 . The display device of claim 1 , wherein the protruding pattern part is disposed at a pixel row boundary.

3 . The display device of claim 1 , wherein the protruding pattern part is provided in plural and includes a first protruding pattern part projected from the first main pattern part toward the first direction of the row axis and a second protruding pattern part projected from the first main pattern part toward the second direction of the row axis.

4 . The display device of claim 3 , further comprising:
a second pixel column disposed toward the second direction of the row axis from the first pixel column; and a light-transmitting pattern disposed along the second pixel column and which includes a first indentation pattern part recessed toward the second direction of the row axis along the second protruding pattern part.

5 . The display device of claim 4 , further comprising:
a third pixel column disposed toward the second direction of the row axis from the second pixel column and which extends in the column axis; and a second wavelength conversion pattern which includes a second main pattern part disposed along the third pixel column and a third protruding pattern part projected from the second main pattern part toward the first direction of the row axis.

6 . The display device of claim 5 , wherein the second wavelength conversion pattern further includes a second indentation pattern part recessed toward the first direction of the row axis along the third protruding pattern part.

7 . The display device of claim 6 , wherein
the first, second, and third pixel columns are repeatedly arranged along the row axis, and the second wavelength conversion pattern further includes a third indentation pattern part recessed toward the first direction of the row axis along the first protruding pattern part of the first wavelength conversion pattern.

8 . The display device of claim 4 , further comprising:
a third pixel column disposed toward the second direction of the row axis from the second pixel column and which extends in the column axis; and a second wavelength conversion pattern disposed in the third pixel column, wherein the first, second, and third pixel columns are repeatedly arranged along the row axis.

9 . The display device of claim 8 , wherein the second wavelength conversion pattern further includes a second indentation pattern part is recessed toward the first direction of the row axis along the first protruding pattern part.

10 . The display device of claim 1 , wherein the protruding pattern part is provided in plural and includes a first protruding pattern part projected from the first main pattern part toward the second direction of the row axis.

11 . The display device of claim 10 , further comprising:
a second pixel column disposed toward the second direction of the row axis from the first pixel column and which extends in the column axis; a second wavelength conversion pattern disposed along the second pixel column and which includes a first indentation pattern part recessed toward the second direction of the row axis along the first protruding pattern part; a third pixel column disposed toward the second direction of the row axis from the second pixel column and which extends in the column axis; and a second wavelength conversion pattern which includes a second main pattern part disposed along the third pixel column and a second protruding pattern part projected from the second main pattern part toward the first direction of the row axis.

12 . The display device of claim 11 , wherein the first indentation pattern part and the second protruding pattern part are disposed at a pixel row boundary.

13 . The display device of claim 1 , wherein the protruding pattern part is provided in plural and the protruding pattern part is not disposed at some pixel row boundaries.

14 . The display device of claim 1 , further comprising:
a light-shielding pattern disposed on the first substrate along pixel row boundaries and along pixel column boundaries, wherein the light-shielding pattern overlaps with the protruding pattern part.

15 . A display device, comprising:
a plurality of pixels arranged in a row axis and in a column axis that intersects the row axis; a first substrate on which a light-emitting element disposed in each of the pixels is disposed; a second substrate which faces the first substrate; and a wavelength conversion pattern disposed on the second substrate in a first pixel column and which converts wavelength of light emitted from the light-emitting element, wherein the wavelength conversion pattern includes a first pattern part which has a first width in the row axis and a second pattern part which has a second width greater than the first width in the row axis.

16 . The display device of claim 15 , wherein the second pattern part includes parts that extend from both edges, in the row axis, of the first pattern part in a plan view.

17 . The display device of claim 16 , wherein the parts of the second pattern part that extend from both edges of the first pattern part are disposed at a pixel row boundary.

18 . The display device of claim 17 , wherein
the wavelength conversion pattern further includes a third pattern part which has a third width greater than the first width in the row axis, and the third pattern part includes parts that extend from both edges of the first pattern part in a plan view.

19 . The display device of claim 18 , wherein the parts of the third pattern part that extend from both edges of the first pattern part are not disposed at the pixel row boundary.

20 . The display device of claim 16 , further comprising:
a light-shielding pattern disposed on the first substrate along pixel row boundaries and along pixel column boundaries, wherein the light-shielding pattern overlaps with the parts of the second pattern part that extend from both edges of the first pattern part.

Assignees

• Samsung Display Co Ltd

Inventors

• Joo Sun Kyu
• Oh Keun Chan
• Kim Byung Chul
• Kim In Ok
• Song In Seok
• Lee Gak Seok
• Jang Chang Soon

Classifications

• H10K59/131

  Interconnections, e.g. wiring lines or terminals · CPC title

• H10K59/8792

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

• H10K59/877

  comprising scattering means · CPC title

• H10K59/873

  Encapsulations · CPC title

• H10K59/38 Primary

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