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Screen refreshing method and device

A technology of screen and refresh times, applied in the field of communication electronics, can solve the problem of low efficiency of EPD screen refresh operation, and achieve the effect of improving refresh efficiency and refresh operation.

Inactive Publication Date: 2014-05-28
北京君正集成电路股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Embodiments of the present invention provide a method and device for screen refresh, which are used to solve the problem of low efficiency of EPD screen refresh operation in the existing electrophoretic display technology

Method used

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  • Screen refreshing method and device

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Embodiment 1

[0041] The embodiment of the present invention provides a method for refreshing the screen, which can well reduce the time required for refreshing the screen and reduce the waiting time of customers. This solution can have a more obvious effect on improving the refresh operation of partial images. Taking an EPD display screen with a screen resolution of 800×600 as an example, 60 refresh operations are required to display an image at this time. The specific method is as follows:

[0042] First, the EPD controller needs to perform refresh operations on all pixels of the image to be displayed in sequence, and the refresh operation includes steps 21-23;

[0043] Step 31, the EPD controller obtains the pixel data of the current pixel of the image to be displayed from the buffer to be displayed;

[0044] Here, the first pixel of the image to be displayed is taken as the current pixel as an example, and what step 21 obtains at this time is the pixel data of the first pixel;

[0045]...

Embodiment 2

[0055] The difference between the second embodiment and the first embodiment is that after the current pixel is determined in step 31 of the first embodiment, it is judged whether the pixel data of the current pixel is the same as the pixel data of the current pixel of the next image to be displayed, and if they are the same, then It shows that there is no change in the current pixel data, that is, there is no need to perform a refresh operation. At this time, the next pixel of the current pixel is selected as the current pixel, and the steps in Embodiment 1 are continued to complete the noise reduction process; if not the same, then continue to step 32 and its next steps.

[0056] Such as Figure 5 As shown, the embodiment of the present invention provides a screen refresh device, the device includes:

[0057] Refreshing unit 51, configured to sequentially perform refresh operations on the pixels of the image to be displayed;

[0058] A judging unit 53, configured to judge ...

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Abstract

The invention relates to the technical field of communication electronics and particularly relates to a screen refreshing method and a device, so as to solve the problem that EPD screen refreshing operation needs long time in the prior electrophoretic display?technology. The method comprises steps of sequentially carrying out refreshing operation on a pixel of a to-be-displayed image, judging whether the refreshing operation times of the current pixel of the to-be-displayed image is equal to the preset refreshing times; and acquiring the current pixel of a next to-be-displayed image if yes. Thus, when the scheme provided by the embodiment of the invention is adopted, the needed time for EPD screen refreshing operation can be reduced.

Description

technical field [0001] The invention relates to the technical field of communication electronics, in particular to a screen refresh method and device. Background technique [0002] With the development of science and technology, electronic paper books have penetrated into people's daily life, such as figure 1 As shown, the main process of displaying an image in an electronic paper book is: if a new image is to be displayed on the screen, the EPD controller 13 acquires the current pixel data of the image to be displayed from the buffer 11 to be displayed, and then obtains the current pixel data of the image to be displayed from the displayed image. Acquire the display pixel data of the displayed image of the previous frame in the buffer memory 15, and the EPD controller 13 obtains the corresponding 2bits data in the LUT look-up table 12 according to the obtained current pixel data and display pixel data, and then obtains through the data line The data is sent to the EPD disp...

Claims

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Application Information

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IPC IPC(8): G09G3/34
Inventor 朱文军
Owner 北京君正集成电路股份有限公司
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