US 12,228,814 B2
Display panel and fabrication method thereof, and display device
Yuan Yao, Shanghai (CN); and Zhiyuan Zhang, Shanghai (CN)
Assigned to Shanghai Tianma Micro-Electronics Co., Ltd., Shanghai (CN)
Filed by Shanghai Tianma Micro-Electronics Co., Ltd., Shanghai (CN)
Filed on Oct. 21, 2022, as Appl. No. 17/971,095.
Claims priority of application No. 202210784863.7 (CN), filed on Jun. 29, 2022.
Prior Publication US 2024/0004232 A1, Jan. 4, 2024
Int. Cl. G02F 1/1335 (2006.01); G02F 1/1368 (2006.01)
CPC G02F 1/133502 (2013.01) [G02F 1/133512 (2013.01); G02F 1/133514 (2013.01); G02F 1/1368 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a plurality of pixels, wherein a pixel of the plurality of pixels includes a light-transmitting area, the pixel at least includes a first sub-pixel, a second sub-pixel and a third sub-pixel, a first color resist is disposed in the first sub-pixel, a second color resist is disposed in the second sub-pixel, a third color resist is disposed in the third sub-pixel, and the first color resist is a green color resist;
a substrate structure, wherein the substrate structure includes a first substrate;
a first structure layer located on a side of the first substrate adjacent to a light-exiting surface of the display panel, wherein the first structure layer includes at least one first film layer; and
a second structure layer located on a side of the first structure layer away from the substrate structure,
wherein:
the substrate structure is adjacent to and in contact with the first structure layer, and the second structure layer is adjacent to and in contact with the first structure layer; and
an average refractive index of the substrate structure is n1, an average refractive index of the first structure layer is n2, a refractive index of the second structure layer is n3, and n1<n2<n3; and
wherein the substrate structure further comprises:
a buffer layer located on a side of the first substrate adjacent to the light-exiting surface of the display panel;
a first sub-gate insulation layer located on a side of the first substrate adjacent to the light-exiting surface of the display panel, wherein the first structure layer is located on a side of the first sub-gate insulation layer adjacent to the light-exiting surface of the display panel; and
a second sub-gate insulation layer located on a side of the first structure layer adjacent to the light-exiting surface of the display panel, wherein the second sub-gate insulation layer is the second structure layer.