US 12,356,799 B2
Display panel and display device
Lei Lv, Hubei (CN); Meng Jin, Hubei (CN); Tao Yuan, Hubei (CN); and Jinchang Huang, Hubei (CN)
Assigned to WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Hubei (CN)
Appl. No. 17/439,771
Filed by WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Hubei (CN)
PCT Filed Aug. 3, 2021, PCT No. PCT/CN2021/110350
§ 371(c)(1), (2) Date Sep. 15, 2021,
PCT Pub. No. WO2023/000381, PCT Pub. Date Jan. 26, 2023.
Claims priority of application No. 202110819247.6 (CN), filed on Jul. 20, 2021.
Prior Publication US 2023/0026941 A1, Jan. 26, 2023
Int. Cl. H10K 50/822 (2023.01); H10K 50/844 (2023.01); H10K 50/86 (2023.01); H10K 59/121 (2023.01); H10K 59/122 (2023.01); H10K 59/38 (2023.01); H10K 59/65 (2023.01); H10K 59/80 (2023.01)
CPC H10K 59/121 (2023.02) [H10K 50/822 (2023.02); H10K 50/844 (2023.02); H10K 50/865 (2023.02); H10K 59/122 (2023.02); H10K 59/38 (2023.02); H10K 59/80521 (2023.02); H10K 59/65 (2023.02); H10K 59/873 (2023.02)] 18 Claims
OG exemplary drawing
 
1. A display panel, comprising: a normal display area and a functional display area, wherein the display panel comprises:
a substrate, comprising a pixel definition layer defining a plurality of openings;
a light-emitting layer disposed on a side of the substrate, the light-emitting layer comprising a plurality of light-emitting units corresponding to the openings;
a cathode inhibition layer disposed on a side of the pixel definition layer, at least configured in the functional display area, and disposed between the light-emitting units;
a cathode disposed on a side of the light-emitting layer away from the substrate, wherein a thickness of the cathode on the cathode inhibition layer is less than a thickness of the cathode on the light-emitting units; and
a color filter layer disposed on a side of the cathode away from the substrate, the color filter layer comprising a plurality of color resists corresponding to the light-emitting units, and a light shielding portion configured between adjacent two of the color resists, the light shielding portion comprising a light-permeable aperture configured corresponding to the cathode inhibition layer, the light-permeable aperture filled with a light-permeable material, wherein a light transmittance of the light-permeable material is greater than a light transmittance of the light shielding portion;
wherein the cathode inhibition layer comprises a plurality of cathode inhibition portions disposed between the light-emitting units, and an area of an orthographic projection of light-permeable aperture projected on the cathode inhibition layer is greater than or equal to an area of the cathode inhibition portion;
wherein a shape of the orthographic projection of the light-permeable aperture projected on the cathode inhibition layer is same as a shape of a corresponding cathode inhibition portion;
wherein an aperture size of the light-permeable aperture at a side close to the cathode inhibition layer is smaller than an aperture size of the light-permeable aperture at a side away from the cathode inhibition layer.