Display device and electronic equipment
By using a combination of surface-emitting semiconductor lasers and metasurfaces in a display device to convert laser radiation into a circularly polarized state, the problems of insufficient detection efficiency and signal-to-noise ratio of sensor devices are solved, achieving efficient facial presence detection and spatial optimization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- AMS OSRAM INT GMBH
- Filing Date
- 2024-11-22
- Publication Date
- 2026-06-26
AI Technical Summary
In existing display devices, the detection efficiency and signal-to-noise ratio of sensor devices are insufficient, especially when detecting the presence of a face, making it difficult to effectively utilize the space of the display device and reduce interference with sunlight.
By combining a surface-emitting semiconductor laser with a metasurface, and converting the laser radiation into a circularly polarized state, along with a quarter-wave plate and a linear polarizer, efficient facial presence detection is achieved while reducing light loss.
It improves the detection accuracy and signal-to-noise ratio of sensor devices, enhances detection capabilities within display devices, reduces interference with sunlight, and optimizes space utilization.
Smart Images
Figure CN122295597A_ABST