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

Ting Mei; Ting Mei; Zhixian Lin; Zhixian Lin; Zhixian Lin; Ziyu Xie; Ziyu Xie; Shanling Lin; Shanling Lin; Bipeng Cai; Bipeng Cai; Mingzhen Chen; Mingzhen Chen; Tailiang Guo; Tailiang Guo

doi:10.3389/fphy.2024.1386889

Frontiers in Physics (Apr 2024)

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

Ting Mei,
Ting Mei,
Zhixian Lin,
Zhixian Lin,
Zhixian Lin,
Ziyu Xie,
Ziyu Xie,
Shanling Lin,
Shanling Lin,
Bipeng Cai,
Bipeng Cai,
Mingzhen Chen,
Mingzhen Chen,
Tailiang Guo,
Tailiang Guo

Affiliations

Ting Mei: School of Physics and Information Engineering, Fuzhou University, Fuzhou, China
Ting Mei: China Fujian Optoelectronic Information Science and Technology Innovation Laboratory, Fuzhou, China
Zhixian Lin: School of Physics and Information Engineering, Fuzhou University, Fuzhou, China
Zhixian Lin: China Fujian Optoelectronic Information Science and Technology Innovation Laboratory, Fuzhou, China
Zhixian Lin: School of Advanced Manufacturing, Fuzhou University, Quanzhou, China
Ziyu Xie: School of Physics and Information Engineering, Fuzhou University, Fuzhou, China
Ziyu Xie: China Fujian Optoelectronic Information Science and Technology Innovation Laboratory, Fuzhou, China
Shanling Lin: China Fujian Optoelectronic Information Science and Technology Innovation Laboratory, Fuzhou, China
Shanling Lin: School of Advanced Manufacturing, Fuzhou University, Quanzhou, China
Bipeng Cai: School of Physics and Information Engineering, Fuzhou University, Fuzhou, China
Bipeng Cai: China Fujian Optoelectronic Information Science and Technology Innovation Laboratory, Fuzhou, China
Mingzhen Chen: School of Physics and Information Engineering, Fuzhou University, Fuzhou, China
Mingzhen Chen: China Fujian Optoelectronic Information Science and Technology Innovation Laboratory, Fuzhou, China
Tailiang Guo: School of Physics and Information Engineering, Fuzhou University, Fuzhou, China
Tailiang Guo: China Fujian Optoelectronic Information Science and Technology Innovation Laboratory, Fuzhou, China

DOI: https://doi.org/10.3389/fphy.2024.1386889
Journal volume & issue: Vol. 12

Abstract

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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.

Published in Frontiers in Physics

ISSN: 2296-424X (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Science: Physics
Website: https://www.frontiersin.org/journals/physics

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