Compared with display devices such as CRT, plasma, and rear projection, LCD displays have become the mainstream of flat panel displays due to their pure flat surface, fine display, thin thickness, and bright colors. To ensure its increasingly broad application prospects, it is necessary to further improve the display effect, especially brightness and uniformity. However, liquid crystals themselves do not emit light, so the development and design of backlight sources have become one of the research hotspots in modern display and imaging technology, with broad theoretical significance and practical value. Light guidance and brightness enhancement are the main challenges facing the liquid crystal industry at present. This paper analyzes the main ways of light energy loss in the backlight group during light propagation, and discusses several methods to improve light energy utilization: using high reflectivity reflective films, separating and reusing polarized light, adding prism films, improving light guide plates, etc. Based on the current production status of China's LCD industry, this paper proposes a method for separating and reusing polarized light at the light source, designs a specific experimental optical path, calculates the light energy utilization rate, and conducts a detailed error analysis. This solution is aimed at large screen display devices, which not only improves light energy utilization and reduces polarization losses, but also reduces the number of prism lenses used and power consumption. The structure is simple and easy to implement. In cooperation with Shenzhen Longxiang Excellent Electronic Technology Co., Ltd., we utilized the professional design functions of LightTools to achieve three-dimensional modeling of the backlight system; By utilizing the Monte Carlo ray tracing function, the simulation analysis of the entire optical path was completed, and various output results corresponding to brightness and uniformity were obtained, which is convenient for future debugging and optimization. Through communication with R&D personnel at Nu Skin, this paper has improved and perfected the existing optical path simulation and tracking program based on the previous work TXT files are used as interface data in conjunction with interactive modeling tools; We have preliminarily explored the design of an integrated light guide plate with prism film function, in order to make small screen display devices lighter, thinner, and more superior in performance.
---Source of this content//Paper "Research on Methods for Uniform Light Guidance and Brightness Enhancement of Backlight Source Systems" | Zhuang Xiaowei Tianjin University Classification Number: TN873.93. Shenzhen Longxiang Zhuoyue Electronic Technology Co., Ltd