US 11,895,893 B2
Display panel including stack of light-converging structure and band-pass filtering structure, manufacturing method thereof, and display apparatus
Qian Sun, Beijing (CN); Wei Huang, Beijing (CN); Qian Jin, Beijing (CN); and Yichi Zhang, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed on Jun. 22, 2021, as Appl. No. 17/354,142.
Claims priority of application No. 202011456820.3 (CN), filed on Dec. 11, 2020.
Prior Publication US 2022/0190039 A1, Jun. 16, 2022
Int. Cl. H10K 59/38 (2023.01); H10K 50/858 (2023.01); H10K 71/00 (2023.01); H10K 59/12 (2023.01)
CPC H10K 59/38 (2023.02) [H10K 50/858 (2023.02); H10K 71/00 (2023.02); H10K 59/12 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a first substrate, a light-emitting element array and a color-conversion layer array, wherein the light-emitting element array is arranged on one side of the first substrate and comprises a plurality of light-emitting elements, the color-conversion layer array is located on a side of the light-emitting element array distal to the first substrate, and comprises a plurality of color-conversion layers in one-to-one correspondence with the plurality of light-emitting elements, the light-emitting elements are configured to generate and emit first color light, and the corresponding plurality of color-conversion layers are configured to generate other color lights under excitation of the first color light, wherein the display panel further comprises:
a first band-pass filtering layer located between the light-emitting element array and the color-conversion layer array, comprising: a first light-converging structure in contact with a first band-pass filtering structure, wherein the first light band-pass filtering structure is located on a side of the first light-converging structure distal to the first substrate, the first light-converging structure is configured to converge light rays, and the first band-pass filtering structure is configured to transmit first color light and reflect the other color lights; and/or
a second band-pass filtering layer located on a side of the color-conversion layer array, distal to the light-emitting element array, comprising: a second light-converging structure and a second band-pass filtering structure, wherein the second light band-pass filtering structure is located on a side of the second light-converging structure distal to the first substrate, the second light-converging structure is configured to converge light rays, and the second band-pass filtering structure is configured to transmit the other color lights and reflect the first color light.