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Method for eliminating edge ghost of electrophoretic electronic paper

An electronic paper and edge technology, applied in the direction of instruments, static indicators, etc., can solve the problems of difficult uniform particle distribution, easy to form ghost images, complex force, etc., to achieve uniform particle distribution, eliminate edge ghosting, and force balance Effect

Active Publication Date: 2018-12-07
UNIV OF ELECTRONICS SCI & TECH OF CHINA ZHONGSHAN INST +1
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Problems solved by technology

However, the problem of image sticking at the edge of electrophoretic electronic paper has been difficult to eliminate. The main reason is that the particles are subjected to complex forces in the microcapsule dispersant, which makes the particle distribution difficult to uniform, making it difficult for the electrophoretic electronic paper display to complete accurate grayscale in a short time. display, and if the state of the short-term driving waveform design is not uniform, it is easy to form ghost images

Method used

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  • Method for eliminating edge ghost of electrophoretic electronic paper
  • Method for eliminating edge ghost of electrophoretic electronic paper
  • Method for eliminating edge ghost of electrophoretic electronic paper

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Embodiment Construction

[0019] refer to Figure 1 to Figure 3 , a method for eliminating residual image on the edge of electrophoretic electronic paper, comprising the following steps:

[0020] (1) Define the part of the area where the image is displayed on the electronic paper display screen as area A, and define the part of the area as the background of the image on the electronic paper display screen as area B.

[0021] (2) Applying a voltage for activating the image on region A and region B specifically includes: applying a positive driving voltage lasting 4 unit times on region A; applying a positive driving voltage lasting 1 unit time on region B Positive drive voltage, and then apply a negative drive voltage for 1 unit time.

[0022] (3) Apply a voltage to erase the image and generate a dark gray background on the area A and area B, specifically comprising: applying a positive driving voltage that lasts for 3 unit times on the area A, and then applying a voltage that lasts for 2 Negative dri...

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Abstract

The invention discloses a method for eliminating edge ghost of electrophoretic electronic paper, which comprises the steps of (1) defining an area used for displaying an image on an electronic paper display screen as an area A, and further defining an area used for serving as the image background of the electronic paper display screen as an area B; (2) applying voltage for activating the image tothe area A and the area B; and (3) applying voltage for erasing the image and generating dark gray background to the area A and the area B. The method realizes optimization for the driving voltage waveform through applying different voltage, and enables particles to be stressed in a balanced manner in a dispersant of a microcapsule, thereby ensuring the particles to be uniformly distributed, and successfully eliminating the edge ghost of the electronic paper without changing the equipment structure and materials.

Description

technical field [0001] The invention relates to the technical field of electrophoretic display, in particular to a method for eliminating residual image at the edge of electrophoretic electronic paper. Background technique [0002] Because electrophoretic electronic paper has good bistable characteristics, and is energy-saving and environmentally friendly, it has been widely used in e-book readers, electronic tags, electronic billboards, etc. During static display, the electrophoretic electronic paper display consumes almost no power, which is A display technology with energy saving and environmental protection features. However, the problem of image sticking on the edge of electrophoretic electronic paper has been difficult to eliminate. The main reason is that the particles are subjected to complex forces in the microcapsule dispersant, which makes the particle distribution difficult to uniform, making it difficult for the electrophoretic electronic paper display to comple...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34
CPCG09G3/344G09G2320/0257
Inventor 易子川何文耀水玲玲白鹏飞周国富
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA ZHONGSHAN INST
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