56.3: A Charge Trapping Suppression Method for Quick Response Electrowetting Displays

Chen, Yi‐Cheng; Chiu, Yu‐Hui; Lee, Wei‐Yen; Liang, Chao‐Chiun

doi:10.1889/1.3500607

Cited by 15 publications

(19 citation statements)

References 4 publications

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“…As we know, there are some effect influence the display quality of EWDs, such as charge trapping phenomenon and oil backflow. Alternating polarity driving scheme is proposed to dealing with the charge trapping issue, including symmetry and asymmetry in driving waveform . However, more gray levels are limited by the asymmetric PWM method.…”

Section: Ewd Display Optimization Designmentioning

confidence: 99%

“…Alternating polarity driving scheme is proposed to dealing with the charge trapping issue, including symmetry and asymmetry in driving waveform. [8][9][10] However, more gray levels are limited by the asymmetric PWM method. Applying a reset pulse or refresh during the display period suppresses the backflow and charge trapping.…”

Section: Driving Waveform Designmentioning

confidence: 99%

“…In the same year, the Cincinnati team also proposed a three‐dimensional electrohydrodynamic display technology, which supports dynamic display. Yi‐Cheng Chen et al analyze the problem existing in EWD, such as charge trapping and coupling, and put forward the corresponding driving scheme . In recent years, South China Normal University has been dedicated to the development of EWD .…”

Section: Introductionmentioning

confidence: 99%

“…Yi-Cheng Chen et al analyze the problem existing in EWD, such as charge trapping and coupling, and put forward the corresponding driving scheme. [8][9][10] In recent years, South China Normal University has been dedicated to the development of EWD. [11][12][13][14][15][16] However, display products based on electrowetting technology still have some problems to be overcome.…”

Section: Introductionmentioning

confidence: 99%

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Improvement of display performance of electrowetting displays by optimized waveforms and error diffusion

et al. 2019

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The electrowetting display (EWD) has a low gray level, and there are some phenomena that affect the display quality, such as oil backflow and charge trapping. In this paper, an error diffusion algorithm based on pixel neighborhood gray information and direct current (DC)‐balanced driving waveform are proposed for display quality of EWD. The proposed algorithm and driving waveform are implemented in the proposed driving system based on Digital Visual Interface (DVI) video codec system and field‐programmable gate array (FPGA) control system. The experiment results show that the driving waveform suppresses the oil backflow, charge trapping and keeps DC balance, and the proposed error diffusion preserves the edges and richness of image. The whole driving system successfully plays video in real time with computer and improves the display quality of EWD.

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Section: Ewd Display Optimization Designmentioning

confidence: 99%

Section: Driving Waveform Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Improvement of display performance of electrowetting displays by optimized waveforms and error diffusion

et al. 2019

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“…The second issue affecting video performance is charge trapping phenomenon . This phenomenon is shown in Fig.…”

Section: Electrowetting Display Driving Principlementioning

confidence: 99%

Portable multi‐gray scale video playing scheme for high‐performance electrowetting displays

et al. 2016

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Electrowetting display technology is realized by tuning the surface energy of a hydrophobic surface by applying a voltage based on electrowetting mechanism. Electrowetting displays have favorable optical properties combined with reflective paper‐like performance. It has been successfully demonstrated in reflective mode with high switching speed. In this paper, we propose a portable driving scheme that can display 4‐bit gray scale dynamic video using an active matrix electrowetting display. The proposed driving scheme includes an electronic system and a dynamic driving waveform design. High‐performance multi‐gray video playing and quick response were obtained for a Quarter Video Graphics Array electrowetting display cell fabricated by our team.

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Model and characterization for dynamic non-uniform pixel capacitance in electrowetting displays

Lai,

Zhai,

Zhang

et al. 2023

Results in Physics

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56.3: A Charge Trapping Suppression Method for Quick Response Electrowetting Displays

Cited by 15 publications

References 4 publications

Improvement of display performance of electrowetting displays by optimized waveforms and error diffusion

Improvement of display performance of electrowetting displays by optimized waveforms and error diffusion

Portable multi‐gray scale video playing scheme for high‐performance electrowetting displays

Model and characterization for dynamic non-uniform pixel capacitance in electrowetting displays

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