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Driving method of electrophoretic display device

A technology of a display device and a driving method, which can be applied to static indicators, nonlinear optics, instruments, etc., can solve problems such as image quality and afterimage, and achieve the effect of reducing afterimage phenomenon and shortening time.

Inactive Publication Date: 2011-11-30
CPT TECH GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the picture update time of the electrophoretic display device is too long, it will cause residual image and affect the picture quality

Method used

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  • Driving method of electrophoretic display device
  • Driving method of electrophoretic display device
  • Driving method of electrophoretic display device

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Experimental program
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Embodiment Construction

[0033] Please refer to Figure 4 . Figure 4It is a schematic diagram of the electrophoretic display device 400 of the present invention. The electrophoretic display device 400 includes an electrophoretic display (EPD) material substrate 401 , a TFT (Thin Film Transistor, thin film transistor) substrate 402 and a driving system 420 . The electrophoretic display material substrate 401 includes a first transparent conductive layer 410 and an electrophoretic medium 411 . The TFT substrate 402 includes a second transparent conductive layer 412 and a glass substrate 413 . The driving system 420 includes a timing controller (Timing Controller) 421 , a memory 422 , a DC / DC converter (DC / DC converter) 423 and a source / base driver (Source / gate driver) 424 . The timing controller 421 provides a voltage control signal to the DC / DC converter 423 , and provides data D7 ˜ D0 to the source / base driver 424 at the same time. The memory 422 is electrically connected to the timing controller...

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PUM

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Abstract

A driving method of an electrophoretic display device, comprising the following steps in sequence: writing a first grayscale data into a first pixel; writing a second grayscale data into a second pixel; resetting the first pixel; resetting the second pixel; immediately after resetting the first pixel, writing a third grayscale data in the first pixel; and immediately after resetting the second pixel, writing a first pixel Four grayscale data are in the second pixel. The advantage of the driving method of the electrophoretic display device of the present invention is that: each pixel writes the next grayscale data immediately after the reset, which can shorten the time required to display a picture, thereby improving the update of the electrophoretic display device. Afterimage phenomenon in the screen.

Description

【Technical field】 [0001] The present invention relates to a driving method of an electrophoretic display device, in particular to a driving method of an electrophoretic display device which can improve image sticking of updated images. 【Background technique】 [0002] Paper is currently a widely used display device because paper has advantages such as wide viewing angle range, lightness, softness, and portability. However, the manufacture of traditional paper consumes a lot of natural resources, and the information on traditional paper cannot be updated or can only be updated a few times. Therefore, the electrophoretic display device (also known as electronic paper, Electronic Paper) can take into account the advantages of paper and the feature of updating information of electronic devices, and is widely used. [0003] Please refer to figure 1 , figure 1 It is a schematic diagram of the display principle of the electrophoretic display device 100 . The electrophoretic disp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34G02F1/167
Inventor 吕启铭陈鸿祥廖振伸
Owner CPT TECH GRP
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