背光单元
By combining the design of carrier, reflector composite, optical composite and diffuser, and combining air gap and specific mirror structure, the problems of large backlight unit thickness and uneven light distribution are solved, and the effects of flattening and light uniformity are achieved.
CN117396802BActive Publication Date: 2026-07-17AMS OSRAM INT GMBH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AMS OSRAM INT GMBH
- Filing Date
- 2022-05-24
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing backlight units are quite thick, making it difficult to achieve a flat design. At the same time, using side-emitting light-emitting diodes requires a complex structural form.
Method used
By employing a combined design of carrier, reflector composite, optical composite and diffuser, combined with air gap and specific mirror structure, and using surface-emitting light-emitting diode chip, uniform light distribution is achieved through the design of reflector and optical elements.
Benefits of technology
The flat design of the backlight unit was achieved, which reduced the sensitivity to positioning tolerances and the refractive index of optical composite materials, ensuring uniform light distribution and efficient optical performance.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN117396802B_ABST
Abstract
一种背光单元，包括：具有平行于x‑y平面设置的上侧的载体、沿着z方向设置在载体之上的反射器复合件；沿着z方向设置在反射器复合件之上的光学复合件；以及沿着z方向设置在光学复合件之上的漫散射器。背光单元的基板单元包括：载体的部段，所述部段具有设置在上侧上的光电子半导体芯片；反射器复合件的反射器；光学复合件的光学元件和漫散射器的部段。反射器具有凹状的镜面。光学元件具有朝向反射器的前侧和背离反射器的背侧。前侧划分为矩阵状地设置的前侧的面部段。背侧划分为矩阵状地设置的背侧的面部段。至少两个前侧的面部段不同地构成。至少两个背侧的面部段也不同地构成。每个前侧的面部段和每个背侧的面部段构成为，使得居中地在z方向上穿过相应的面部段的光束经历确定的射束偏转和确定的射束扩展。
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