A driving method for gray scale multiplication of electrowetting display based on hybrid modulation

被引：0
|
作者：
Mei, Ting [1 ,2 ]
Lin, Zhixian [1 ,2 ,3 ]
Xie, Ziyu [1 ,2 ]
Lin, Shanling [2 ,3 ]
Cai, Bipeng [1 ,2 ]
Chen, Mingzhen [1 ,2 ]
Guo, Tailiang [1 ,2 ]
机构：
[1] Fuzhou Univ, Sch Phys & Informat Engn, Fuzhou, Peoples R China
[2] China Fujian Optoelect Informat Sci & Technol Inno, Fuzhou, Peoples R China
[3] Fuzhou Univ, Sch Adv Mfg, Quanzhou, Peoples R China
来源：
FRONTIERS IN PHYSICS | 2024年 / 12卷
关键词：
electrowetting display; driving waveform; gray scale; PWM; PAM; hybrid modulation; nonlinearity;
D O I：
10.3389/fphy.2024.1386889
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In order to solve the problem of low gray level due to the few driving chips developed based on the photoelectric characteristics of electrowetting display, a driving method based on modulation is proposed to double the gray level of electrowetting display. In this method, the driving waveform based on pulse amplitude modulation and pulse width modulation hybrid modulation is designed, and the gray level-luminance curve of the electrowetting display is measured and analyzed. On this basis, the luminance nonlinear correction is carried out, and the improvement of 64 Gy levels to 127 Gy levels is realized by the principle of human visual persistence phenomenon. The experimental results show that the proposed driving scheme can break through the limitation of the driving chip and realize the multiplication of gray levels, in which 96% gray levels increase steadily with an average luminance difference of 0.07, and at the same time enhance the contrast and improve the display effect.
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收藏
页数：11
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