US 12,276,819 B2
Display panel, and method for manufacturing the same, and display apparatus
Zhiqiang Jiao, Beijing (CN); and Guangcai Yuan, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/779,814
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Apr. 9, 2021, PCT No. PCT/CN2021/086191
§ 371(c)(1), (2) Date May 25, 2022,
PCT Pub. No. WO2021/238444, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 202010478142.4 (CN), filed on May 29, 2020.
Prior Publication US 2023/0003927 A1, Jan. 5, 2023
Int. Cl. H10K 59/80 (2023.01); G02B 5/02 (2006.01); G02B 5/20 (2006.01); H10K 50/854 (2023.01); H10K 50/858 (2023.01); H10K 59/35 (2023.01); H10K 59/38 (2023.01); H10K 71/00 (2023.01)
CPC G02B 5/201 (2013.01) [G02B 5/0242 (2013.01); G02B 5/206 (2013.01); H10K 50/854 (2023.02); H10K 50/858 (2023.02); H10K 59/35 (2023.02); H10K 59/38 (2023.02); H10K 59/877 (2023.02); H10K 71/00 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display panel, comprising at least one pixel unit, the pixel unit including:
a first sub-pixel, the first sub-pixel including a first color filter portion, the first color filter portion being configured to emit light of a first color;
a second sub-pixel, the second sub-pixel including a second color filter portion, the second color filter portion being configured to emit light of a second color;
a third sub-pixel, the third sub-pixel including a third color filter portion, the third color filter portion being configured to emit light of a third color, and the light of the third color, the light of the first color light and the light of the second color being light of three primary colors; and
a fourth sub-pixel, the fourth sub-pixel including a fourth color filter portion, a material of the fourth color filter portion including at least one light conversion material, the at least one light conversion material being configured to convert a portion of light directed to the fourth color filter portion into light of at least one primary color, and the light of the at least one primary color being capable of being mixed with another portion of the light directed to the fourth color filter portion to generate white light;
wherein a material of at least one color filter portion of the first color filter portion, the second color filter portion, the third color filter portion or the fourth color filter includes a scattering material; and
the color filter portion with the scattering material includes at least two scattering layers sequentially stacked in a first direction, the first direction is from a light-incidence side of the color filter portion to a light-exit side of the color filter portion, wherein
of two adjacent scattering layers, a doping mass percentage of a scattering material in the scattering layer proximate to the light-exit side of the color filter portion is greater than a doping mass percentage of a scattering material in the scattering layer proximate to the light-incidence side of the color filter portion; and/or
a thickness of each scattering layer is in a range of 0.1 μm to 20 μm, inclusive.