Huawei Technologies Co., Limited

Minchang Wang

Wenxiong Wei

Xinyu Zhao

Yi Hu

Yonghao Zhu

Jun Tao

Hui Meng

An electronic device includes a display screen, a display control circuit, an active optical component, and an optical control circuit. The active optical component is located below the display screen. The display control circuit is configured to control refreshing of the display screen, and output a synchronization signal to the optical control circuit. The optical control circuit is configured to receive the synchronization signal, and control the active optical component to start light emission after a predetermined first delay that is after a moment corresponding to the synchronization signal to enable the display control circuit to refresh to one row of at least one row on the display screen corresponding to the active optical component after a predetermined second delay that is after the active optical component completes light emission.

Active optical component light emission control method

A full-screen optical component, applied to an electronic device comprising a display screen, comprising a backlight module, an active light sensor including a sensor and a light emitter, and a dimmer. The display screen and the active light sensor are located on two opposite sides of the backlight module. The backlight module includes a first prism film and a second prism film stacked on the first prism film. The first prism film includes several first prisms. The second prism film includes several second prisms. The first prism includes a first in-light surface, and the second prism includes a second in-light surface. A display surface of the display screen, the first in-light surface, and the second in-light surface are disposed in parallel. The dimmer is configured to direct light emitted by the light emitter to the first in-light surface at an incident angle that is inclined relative to a vertical direction.

Full-screen optical component and electronic device

Growing community of inventors

Shenzhen, China

Minchang Wang