Backlight module, display screen and electronic equipment
By setting the light strip in the backlight module to emit light along the longer edge of the light guide plate and using parallel signal lines and dual drive units, the light effect problem caused by the long light transmission path in large-sized LCD screens is solved, and a more uniform Light transmission and higher screen light effects.
Patent Information
- Application Number
- CN202310855966.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-12
- Publication Date
- 2025-01-14
AI Technical Summary
In the large-size LCD screen, the light source is set at the short side of the light guide plate, resulting in too long light transmission path, resulting in serious loss of light in different colors, affecting the screen light effect.
A backlight module is designed in which a plurality of light strips are arranged on the longer edge of the light guide plate, and the light emitted by the light strip is transmitted in parallel along the shorter edge of the light guide plate, and brightness uniformity is ensured through parallel signal lines and dual driving units. And through the alternating arrangement of light strip projection and the optimization of circuit board layout, light loss is reduced.
The transmission path of light is shortened, the loss difference between light rays at different wavelengths is reduced, the light efficiency of the screen is improved, and the problem of uneven brightness is avoided.
Smart Images
Figure CN119310768A_ABST