IP Library › Granted Patent US 12,261,250
Granted Patent B2
US 12,261,250 · App. 17/829,368 · Granted Mar 25, 2025

Display panel including sub-pixels for providing dual color lights

Inventors: Loganathan Murugan (MiaoLi County, TW); Sheng-Yuan Sun (MiaoLi County, TW); Po-Wei Chiu (MiaoLi County, TW)
Assignee: PlayNitride Display Co., Ltd.
H01L33/505H01L27/156
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Quick Facts
Patent No.
US 12,261,250
App. No.
17/829,368
Granted
Mar 25, 2025
Kind
B2
Abstract

A display panel includes a pixel unit. The pixel unit includes a first sub-pixel and a second sub-pixel. The first sub-pixel includes a first light-emitting element, a first light source element, and a first color conversion structure. A light emitted by the first light-emitting element has a first color. The first color conversion structure is disposed on the first light source element and adapted to convert a light emitted by the first light source element into a light of the first color. The second sub-pixel includes a second light-emitting element. A light emitted by the second light-emitting element has a second color different from the first color.

Claims (18)

1. A display panel comprising:

a pixel unit comprising:

a first sub-pixel comprising:

a first light-emitting element, wherein a light emitted by the first light-emitting element has a first color;

a first light source element; and

a first color conversion structure disposed on the first light source element and adapted to convert a light emitted by the first light source element into a light of the first color; and

a second sub-pixel, comprising a second light-emitting element, wherein a light emitted by the second light-emitting element has a second color different from the first color,

wherein the second sub-pixel further comprises a second light source element and a second color conversion structure, and the second color conversion structure is disposed on the second light source element and is adapted to convert a light emitted by the second light source element into a light of the second color.

2. The display panel according to claim 1 , wherein a difference between an emission peak wavelength of the first light-emitting element and an emission peak wavelength of the first color conversion structure is less than 5 nm.

3. The display panel according to claim 1 , wherein a difference between an emission peak wavelength of the first light-emitting element and an emission peak wavelength of the second light-emitting element is greater than 50 nm.

4. The display panel according to claim 1 , wherein the pixel unit further comprises a third sub-pixel adjacent to at least one of the first sub-pixel and the second sub-pixel, the third sub-pixel comprises a third light-emitting element, and a light emitted by the third light-emitting element has a third color, the third color being different from the first color and the second color.

5. The display panel according to claim 4 , further comprises a fourth sub-pixel adapted to emit a light of a fourth color, the fourth color being different from the first color, the second color, and the third color.

6. The display panel according to claim 5 , wherein the fourth sub-pixel comprises a fourth light source element and a fourth color conversion structure, the fourth color conversion structure is disposed on the fourth light source element, and a light emitted by the fourth light source element is converted by the fourth color conversion structure to the fourth color.

7. The display panel according to claim 1 , wherein the first light-emitting element, the first light source element, and the second light-emitting element each have a top surface, and a ratio of an area to a perimeter of each of the top surfaces is less than 10.

8. The display panel according to claim 1 , wherein the first color is red, and the second color is green or blue.

9. The display panel according to claim 1 , further comprising a color filter pattern located on at least one of the first sub-pixel and the second sub-pixel.

10. The display panel according to claim 1 , further comprising a black matrix located between the first sub-pixel and the second sub-pixel.

11. The display panel according to claim 1 , wherein the light emitted by the first light source element is blue light, ultraviolet light, or deep ultraviolet light.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 6, 2022
From: MURUGAN, LOGANATHAN; SUN, SHENG-YUAN; CHIU, PO-WEI
To: PLAYNITRIDE DISPLAY CO., LTD.
Reel/Frame 060104/0368 →
Continuity (1)
Related Publication 20230395759A1 · Dec 7, 2023
References Cited (6)
US 11877489B2 · Hack · 2024 [cited by examiner]
US 20220102442A1 · Hack · 2022 [cited by examiner]
US 20230140197A1 · Chen · 2023 [cited by examiner]
US 20230335577A1 · Park · 2023 [cited by examiner]
US 20240038749A1 · Wu · 2024 [cited by examiner]
US 20240114741A1 · Hack · 2024 [cited by examiner]