Granted Patent B2

US 12,426,416 · App. 17/437,431 · Granted Sep 23, 2025

Inventor: Xi Cheng (Shenzhen, CN)

Assignee: TCL China Star Optoelectronics Technology Co., Ltd

H10H20/856H01L25/0753

Abstract

Claims (47)

1. A display panel, comprising:

a plurality of light emitting devices distributed in an array, wherein each light emitting device comprises an upper light emitting surface and a side light emitting surface configured to transmit light, and wherein the side light emitting surface is provided with a reflective layer;

wherein the plurality of light emitting devices comprises a plurality of light emitting devices with different colors, and wherein the reflective layer on each light emitting device of the plurality of light emitting devices with the different colors having one color of the different colors is configured to reflect light emitted by another light emitting device of the plurality of light emitting devices with the different colors having another color of the different colors different from the one color of the different colors;

wherein the reflective layer comprises a plurality of reflective films laminated on the side light emitting surface; and

wherein refractive indexes of any two adjacent reflective films are different.

2. The display panel according to claim 1 , wherein the side light emitting surface comprises at least one first sub-light-emitting surface provided adjacent to another light emitting device; and

the reflective layer is provided on the at least one first sub-light-emitting surface of the side light emitting surface.

3. The display panel according to claim 1 , wherein the side light emitting surface comprises at least one second sub-light-emitting surface provided adjacent to the another light emitting device having the another color, and

the reflective layer is provided on the at least one second sub-light-emitting surface of the side light emitting surface.

4. The display panel according to claim 1 , wherein the refractive indexes of the plurality of reflective films are all different.

5. The display panel according to claim 1 , wherein a material, a thickness, and a number of reflective films of the reflective layer on the plurality of light emitting devices with the different colors are different.

6. The display panel according to claim 1 , wherein a material of each reflective film comprises any one of a silicon nitride, a silicon oxide, or an amorphous silicon.

7. The display panel according to claim 1 , wherein the plurality of light emitting devices with the different colors comprises a first color light emitting device, a second color light emitting device, and a third color light emitting device;

a side light emitting surface of the first color light emitting device comprises at least one third sub-light-emitting surface and at least one fourth sub-light-emitting surface; and

the at least one third sub-light-emitting surface is provided adjacent to the second color light emitting device, and the at least one fourth sub-light-emitting surface is provided adjacent to the third color light emitting device.

8. The display panel according to claim 7 , wherein the reflective layer on the first color light emitting device comprises a first sub-reflective layer and a second sub-reflective layer;

the first sub-reflective layer is provided on the at least one third sub-light-emitting surface, and is configured to reflect the light emitted from the second color light emitting device; and

the second sub-reflective layer is provided on the at least one fourth sub-light-emitting surface, and is configured to reflect the light emitted from the third color light emitting device.

9. The display panel according to claim 8 , wherein the first sub-reflective layer comprises a plurality of first sub-reflective films laminated on the third sub-light-emitting surface, and the second sub-reflective layer comprises a plurality of second sub-reflective films laminated on the fourth sub-light-emitting surface; and

the refractive indexes of any two adjacent first sub-reflective films are different, and the refractive indexes of any two adjacent second sub-reflective films are different.

10. The display panel according to claim 9 , wherein the refractive indexes of the plurality of first sub-reflective films are all different.

11. The display panel according to claim 9 , wherein the refractive indexes of the plurality of second sub-reflective films are all different.

12. The display panel according to claim 9 , wherein the first sub-reflective layer and the second sub-reflective layer are different in material, thickness, and number of sub-reflective films.

13. The display panel according to claim 1 , further comprising:

an array substrate and a plurality of light shielding layers;

wherein the plurality of light emitting devices are positioned on the array substrate, and wherein the plurality of light shielding layers are positioned on the array substrate between any adjacent ones of the plurality of light emitting devices with the different colors.

14. The display panel according to claim 13 , wherein a material of the light shielding layers is ink.

15. The display panel according to claim 1 , wherein the plurality of light emitting devices with the different colors comprises a red light emitting device, a blue light emitting device, and a green light emitting device.

16. A display panel, comprising:

a plurality of light emitting devices distributed in an array, wherein each light emitting device comprises an upper light emitting surface and a side light emitting surface configured to transmit light, and wherein the side light emitting surface is provided with a reflective layer;

wherein:

the plurality of light emitting devices comprises a plurality of light emitting devices with different colors, and wherein the reflective layer on each light emitting device of the plurality of light emitting devices with the different colors having one color of the different colors is configured to reflect light emitted by another light emitting device of the plurality of light emitting devices with the different colors having another color of the different colors different from the one color of the different colors;

the plurality of light emitting devices with the different colors comprises a first color light emitting device, a second color light emitting device, and a third color light emitting device;

a side light emitting surface of the first color light emitting device comprises at least one third sub-light-emitting surface and at least one fourth sub-light-emitting surface;

the at least one third sub-light-emitting surface is provided adjacent to the second color light emitting device, and the at least one fourth sub-light-emitting surface is provided adjacent to the third color light emitting device;

the reflective layer on the first color light emitting device comprises a first sub-reflective layer and a second sub-reflective layer;

the first sub-reflective layer is provided on the at least one third sub-light-emitting surface, and is configured to reflect the light emitted from the second color light emitting device;

the second sub-reflective layer is provided on the at least one fourth sub-light-emitting surface, and is configured to reflect the light emitted from the third color light emitting device;

the first sub-reflective layer comprises a plurality of first sub-reflective films laminated on the third sub-light-emitting surface, and the second sub-reflective layer comprises a plurality of second sub-reflective films laminated on the fourth sub-light-emitting surface; and

the refractive indexes of any two adjacent first sub-reflective films are different, and the refractive indexes of any two adjacent second sub-reflective films are different.

17. A display panel, comprising:

a plurality of light emitting devices distributed in an array, wherein each light emitting device comprises an upper light emitting surface and a side light emitting surface configured to transmit light, and wherein the side light emitting surface is provided with a reflective layer; and

an array substrate and a plurality of light shielding layers;

wherein:

the plurality of light emitting devices comprises a plurality of light emitting devices with different colors, and wherein the reflective layer on each light emitting device of the plurality of light emitting devices with the different colors having one color of the different colors is configured to reflect light emitted by another light emitting device of the plurality of light emitting devices with the different colors having another color of the different colors different from the one color of the different colors;

the plurality of light emitting devices are positioned on the array substrate, and wherein the plurality of light shielding layers are positioned on the array substrate between any adjacent ones of the plurality of light emitting devices with the different colors; and

a material of the light shielding layers is ink.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (38)