An optically efficient full-color reflective display with an electrochromic device and color production units

Journal of Information Display

Ik Jang Ko¹  Jin Hwan Park¹  Gyeong Woo Kim¹  Raju Lampande¹  Jang Hyuk Kwon¹ 

[1] Kyung Hee University;

关键词: Electrochromic device;    reflective display;    full-color production device;    color filter;   

DOI  :  10.1080/15980316.2019.1649310

来源: DOAJ

【 摘 要 】

In this paper, we report a full-color reflective display device by combining reflective electrochromic device (ECD) and different color production units (conventional color filter (CF) and transmittance controllable electrochromic color filter (TCECF)). A full-color reflective device with TCECF showed an excellent diffuse reflectance of 47.2% in the white state owing to the high transmittance of TCECF in the bleached state than that of CF (19.5%). This device structure can easily provide various colors with high brightness and saturation with a broad grayscale. Particularly, in the colored state, TCECF and CF-based full-color reflective device displayed color coordinates of (0.59, 0.34), (0.31, 0.66), (0.24, 0.30) and (0.65, 0.33), (0.27, 0.61), (0.15, 0.06), for red, green and blue, respectively, and alongside also exhibited color gamut of 36.8% (for TCECF) and 73.1% (for CF) for full color reflective devices.

【 授权许可】

Unknown