Chen Haiwei, Zhu Ruidong, Tan Guanjun, Li Ming-Chun, Lee Seok-Lyul, Wu Shin-Tson
Opt Express. 2017 Jan 9;25(1):102-111. doi: 10.1364/OE.25.000102.
We propose to add a functional reflective polarizer (FRP) in the backlight unit to suppress the crosstalk between red, green and blue color filters of a liquid crystal display (LCD) panel. When incorporated with a commercial two-phosphor-converted white light-emitting diode (2pc-WLED), the color gamut of the LCD can be improved from 92% to 115% NTSC standard, which is comparable to the cadmium-based quantum dot (QD) backlight. If a narrow-band color filter is employed, the color gamut can be further enhanced to 135% NTSC. Our design offers an alternative approach to QDs, while keeping low cost and long lifetime. Such a simple yet efficient approach would find widespread applications for enlarging the color gamut of LCDs.
我们建议在背光单元中添加一个功能性反射偏振器（FRP），以抑制液晶显示器（LCD）面板中红色、绿色和蓝色滤色器之间的串扰。当与商用的双磷光转换白光发光二极管（2pc-WLED）结合使用时，LCD的色域可以从92%提高到115% NTSC标准，这与基于镉的量子点（QD）背光相当。如果采用窄带滤色器，色域可以进一步提高到135% NTSC。我们的设计提供了一种替代量子点的方法，同时保持低成本和长寿命。这种简单而有效的方法将在扩大LCD色域方面得到广泛应用。
