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公开(公告)号：US20250102863A1
公开(公告)日：2025-03-27
申请号：US18566067
申请日：2023-10-31
Inventor： Xinpei HU , Hailong PAN , Guangkun LIU , Fancheng LIU , Guowei ZHA
IPC: F21V8/00
Abstract: A backlight module and a display device are provided in the present application. In the backlight module, a light modulation surface of the annular light modulation portion is connected to an end of a corresponding light incident surface away from a physical center, and in a direction from the physical center to the annular light modulation portion, a degree of an acute angle between the light modulation surface and the light incident surface is sequentially increased; or, a light modulation surface corresponding to the annular light modulation portion is connected to an end of a corresponding light incident surface near the physical center, and in the direction from the physical center to the annular light modulation portion, the degree of the acute angle between the light modulation surface and the light incident surface is sequentially increased.
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公开(公告)号：US20250052940A1
公开(公告)日：2025-02-13
申请号：US18521290
申请日：2023-11-28
Inventor： Guangkun LIU , Xinpei HU , Huanli YANG , Fancheng LIU , Guowei ZHA
IPC: F21V8/00
Abstract: A display device includes: a backlight module including a backlight source and a light profile adjustment film; and an optical machine module disposed on a side of the light profile adjustment film away from the backlight source. The light profile adjustment film includes an optical adjustment microstructure, and included angles between main optical axes and normal lines of light emitted from the backlight source after passing through the light profile adjustment film are centrally symmetrical with respect to a center of the light profile adjustment film. The included angle is increased or remains unchanged from the center of the light profile adjustment film to an edge of the light profile adjustment film.
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