US 12,105,372 B2
Color film substrate, display panel and display device
Ge Shi, Beijing (CN); Yujie Liu, Beijing (CN); Shi Shu, Beijing (CN); Wei Huang, Beijing (CN); Shiyu Zhang, Beijing (CN); Yuyao Wang, Beijing (CN); Yunsik Im, Beijing (CN); Xiaochuan Chen, Beijing (CN); Xue Dong, Beijing (CN); Ming Zhu, Beijing (CN); and Song Yang, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed by BOE Technology Group Co., Ltd., Beijing (CN)
Filed on Sep. 28, 2023, as Appl. No. 18/374,109.
Application 18/374,109 is a continuation of application No. 17/298,267, granted, now 11,809,035, previously published as PCT/CN2021/071049, filed on Jan. 11, 2021.
Claims priority of application No. 202010057184.0 (CN), filed on Jan. 17, 2020.
Prior Publication US 2024/0027820 A1, Jan. 25, 2024
Int. Cl. G02F 1/1335 (2006.01)
CPC G02F 1/133514 (2013.01) [G02F 1/133512 (2013.01); G02F 1/133548 (2021.01)] 20 Claims
OG exemplary drawing
 
1. A color filter substrate, comprising:
a base substrate;
a filter layer on the base substrate;
a planarization layer on a side of the filter layer away from the base substrate;
a color conversion layer on a side of the planarization layer away from the base substrate; and
an isolation bank on a side of the planarization layer away from the base substrate,
wherein the filter layer comprises a first filter structure, the first filter structure is configured to filter light within a first wavelength range, and the planarization layer comprises a first part and a second part,
wherein an orthographic projection of the first part on the base substrate overlaps with an orthographic projection of the isolation bank on the base substrate, and an orthographic projection of the second part on the base substrate overlaps with an orthographic projection of the first filter structure on the base substrate, and
wherein a height of the first part in a direction perpendicular to the base substrate is different from a height of the second part in the direction perpendicular to the base substrate.