1.中国科学院 深圳先进技术研究院, 广东 深圳 518000
2.深圳市三利谱光电科技股份有限公司 研发中心, 广东 深圳 518107
3.河北工业大学 理学院, 天津 300401
[ "陈思博(1992—),男,河北廊坊人,博士,工程师,2020年于河北工业大学获得博士学位,主要从事新型偏光片、液晶光学、液晶器件等方面的研究。E-mail:chensibo@sunnypol.com" ]
[ "霍丙忠(1984—),男,河南信阳人,博士,高级工程师,2012年于南开大学获得博士学位,主要从事偏振光学膜方面的研究。E-mail:huobingzhong@ sunnypol.com" ]
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陈思博, 周璇, 黄盆盛, 等. 斜入射下1/4波片补偿能力的优化[J]. 液晶与显示, 2023,38(10):1338-1346.
CHEN Si-bo, ZHOU Xuan, HUANG Pen-sheng, et al. Optimization on compensation ability for quarter wave plate under oblique incidence[J]. Chinese Journal of Liquid Crystals and Displays, 2023,38(10):1338-1346.
陈思博, 周璇, 黄盆盛, 等. 斜入射下1/4波片补偿能力的优化[J]. 液晶与显示, 2023,38(10):1338-1346. DOI: 10.37188/CJLCD.2023-0259.
CHEN Si-bo, ZHOU Xuan, HUANG Pen-sheng, et al. Optimization on compensation ability for quarter wave plate under oblique incidence[J]. Chinese Journal of Liquid Crystals and Displays, 2023,38(10):1338-1346. DOI: 10.37188/CJLCD.2023-0259.
本文使用理论与实验相结合的方法研究了斜入射下液晶涂布型C-plate(Liquid crystal coated C-plate, LCC)对逆分散1/4波片(Reverse wavelength dispersion quarter wave plate, RQWP)补偿能力的优化特性。使用扩展琼斯矩阵比较了偏振光以任意角度通过RQWP、RQWP+LCC两种架构后出射光的椭圆率,探究了不同相位延迟RTH的LCC对出射光椭圆率的影响;测试了上述两种架构的圆偏光片在OLED(Organic light emitting-diode display)上的环境光反射率以及反射颜色色坐标。结果表明,LCC能够使45°斜入射时出射光的椭圆率提升10%以上,且在红、绿、蓝三色光条件下,调整LCC的RTH可使膜材架构的总折射率系数NZ趋近于0.5,获得最佳效果。使用RQWP+LCC架构的圆偏光片可使45°极角下OLED的环境光反射率降低3%。在工业生产中直接生产NZ=0.5的膜材拥有较高的技术难度,本文结论对开发NZ=0.5的膜材提供了新的可行方案。
The optimization ability of LCC (Liquid crystal coated C-plate, LCC) to the RQWP (Reverse wavelength dispersion quarter wave plate, RQWP) compensation characteristics under the oblique incidence is investigated based on the combination of theoretical research and experimental research. The ellipticity of the outgoing light passing through RQWP and RQWP+LCC at any angle and the influence of LCC with different RTH on the ellipticity of the outgoing light are calculated based on extended Jones matrix method. The reflectance of ambient light and color deviation at large viewing-angle of the circular polarizer made by above structures are tested respectively under the case of OLED (Organic light emitting-diode display). It is shown that the LCC can make an increase of more than 10% for the ellipticity at 45° incidence. According to the numerical simulation with different NZ value of RQWP+LCC, NZ=0.5 is proved to be the best ellipticity configuration at any incident angle under R (red light), G (green light) and B (blue light) wavelengths. The structure with RQWP+LCC could reduce the ambient light reflectance by 3% under the oblique incidence at 45° polar angle on OLED. It is difficult to produce the compensation film with NZ=0.5 directly in industrial production, while relevant conclusions in this manuscript have potential to guide similar applications.
斜入射扩展琼斯矩阵椭圆率1/4波片
oblique incidenceextended jones matrix methodellipticityquarter wave plate
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