US 12,293,730 B2
Display panel and display device
Shui He, Xiamen (CN); Jinjin Yang, Xiamen (CN); Jiansheng Zhong, Xiamen (CN); Qiaoling Zhong, Xiamen (CN); Ying Liu, Xiamen (CN); and Shanshan Zheng, Xiamen (CN)
Assigned to Xiamen Tianma Display Technology Co., Ltd., Xiamen (CN)
Filed by Xiamen Tianma Display Technology Co., Ltd., Xiamen (CN)
Filed on Jun. 22, 2023, as Appl. No. 18/212,851.
Claims priority of application No. 202211529732.0 (CN), filed on Nov. 30, 2022.
Prior Publication US 2024/0185807 A1, Jun. 6, 2024
Int. Cl. G09G 5/10 (2006.01); G09G 3/34 (2006.01)
CPC G09G 3/342 (2013.01) [G09G 3/3413 (2013.01); G09G 2320/068 (2013.01); G09G 2320/0686 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a first substrate;
a light-emitting layer; and
a light modulation layer,
wherein:
the light-emitting layer is located between the first substrate and the light modulation layer;
the light modulation layer includes a first light modulation layer and a second light modulation layer;
the light-emitting layer includes at least one light-emitting element;
the first light modulation layer includes at least one first opening;
an orthographic projection of the at least one first opening on the first substrate overlaps with an orthographic projection of the at least one light-emitting element on the first substrate;
the second light modulation layer covers the at least one first opening;
a refractive index of the second light modulation layer is greater than a refractive index of the first light modulation layer;
the display panel includes a first display area;
the light modulation layer includes a first part;
the first part is located in the first display area;
in the first part, a first inclination angle is formed between a tangent of a contact point between a sidewall of a first one of the at least one first opening and a bottom of the first one of the at least one first opening and a bottom surface of the first light modulation layer; and
a value of the first inclination angle is in a range of being greater than 50° and less than 60°.