采用高透明电致变色快门实现色域可恢复的大规模透明度可调微型发光二极管显示器。

Large scale transparency-adjustable mini-LED display with recoverable color gamut by a highly transparent electrochromic shutter.

作者信息

Zhang Hangchuan, Tu Siyang, Li Linshuang, Chen Xingwu, Zhao Yingming, Wu Mingzhou, Zhang Xin, Zhang Shengdong, Chen Lixuan

出版信息

Opt Express. 2022 Oct 24;30(22):39904-39910. doi: 10.1364/OE.469659.

DOI:10.1364/OE.469659

PMID:36298932

Abstract

In this work, a 25 inch (400 × 500 mm) transparency-adjustable mini-LED (TA-MLED) display is constructed of a transparent mini-LED (T-MLED) screen and an electrochromic (EC) shutter. The shutter shows a high transmittance of 86.5% with imperceptible color shift, enabling a perfect vision experience for see-through application. Furthermore, the response speed of the shutter is accelerated by optimal designs in splicing and driving. The coloring time is 55 s, and bleaching time is 36 s. Transmittance of the TA-MLED could be modulated from 3% to 60%. The transparency-adjustable property extends availability of the see-through display screens under strong light irradiations. The T-MLED's color gamut in CIE 1976 shrinks from 145.1% sRGB to 3.6% sRGB with 5161 cd/m of backside illumination, and is significantly enhanced to 83.5% sRGB with the active EC shutter.

摘要

在这项工作中，一个25英寸（400×500毫米）的透明度可调节微型发光二极管（TA-MLED）显示器由一个透明微型发光二极管（T-MLED）屏幕和一个电致变色（EC）快门构成。该快门显示出86.5%的高透过率且颜色偏移不可察觉，为透视应用带来完美的视觉体验。此外，通过拼接和驱动方面的优化设计加快了快门的响应速度。着色时间为55秒，漂白时间为36秒。TA-MLED的透过率可在3%至60%之间调制。这种透明度可调节特性扩展了强光照射下透视显示屏的可用性。在5161坎德拉每平方米的背面照明下，T-MLED在CIE 1976中的色域从145.1%的sRGB缩小到3.6%的sRGB，而在有源EC快门的情况下显著增强到83.5%的sRGB。