US 12,259,613 B2
Backlight module and display device
Chunfeng Liu, Shanghai (CN); and Ronghua Li, Shanghai (CN)
Assigned to Shanghai Tianma Micro-Electronics Co., Ltd., Shanghai (CN)
Filed by Shanghai Tianma Micro-Electronics Co., Ltd., Shanghai (CN)
Filed on Jan. 10, 2024, as Appl. No. 18/408,816.
Claims priority of application No. 202310655288.5 (CN), filed on Jun. 5, 2023.
Prior Publication US 2024/0142821 A1, May 2, 2024
Int. Cl. G02F 1/13357 (2006.01)
CPC G02F 1/133606 (2013.01) [G02F 1/133603 (2013.01); G02F 1/133608 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A backlight module, comprising:
a first region;
a second region surrounding the first region;
a backplate;
a light source located at a side of the backplate pointing to a light exiting direction of the backlight module and located in the first region; and
a first structure located at a side of the light source facing away from the backplate, wherein the first structure comprises scattering dots;
wherein the scattering dots are located in the first region and the second region, and an area of an orthographic projection of the scattering dots in the first region is smaller than an area of an orthographic projection of the scattering dots in the second region within a unit projected area, or
wherein the scattering dots are located in the second region; and
wherein at least some of the scattering dots are recessed towards an interior of the first structure, and/or at least some of the scattering dots protrude towards one side of the backplate.