Waveform framework for automatically removing ghost shadows of black, white and yellow electronic paper module

Abstract

The invention discloses a waveform framework for automatically removing black, white and yellow electronic paper module ghost shadows, which comprises a yellow waveform framework, the yellow waveformframework comprises a screen cleaning area including four parts: one part is a high-voltage waveform with positive and negative alternating change, the other part is a positive high-voltage waveform,the third part is a high-voltage waveform with positive and negative alternating change, and the fourth part is a negative high-voltage waveform. Under the condition of long-term use, ghosting is notaccumulated even if black and white pattern screen cleaning is not carried out, and a good display effect is still achieved after long-term use.

Description

technical field [0001] The present invention relates to the technical field of electronic paper, in particular to a waveform structure for automatically removing afterimages of electronic paper modules in black, white and yellow. Background technique [0002] The electronic paper module is a display screen made of electrophoretic display technology material film pasted on TFT. The black, white and yellow electronic paper module encapsulates charged particles of black, white and yellow in the same microcup structure, and controls the movement of different charged particles (black, white and yellow particles) in the microcup space by applying electric fields with different voltages. The aggregated up-and-down movement, the particle moves to the top of the microcup to display three colors of black, white and yellow. This voltage sequence that promotes the electrophoretic movement of particles is the electronic paper drive waveform. [0003] Generally, the waveform voltage can...

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Problems solved by technology

However, we found that even if the number of cycles is set to the maximum value of the IC, the effect of cumulative afterimage improvement is not satisfactory by cyclically refreshing different images.

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