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Android system-based electronic ink screen refresh control system and method

An electronic ink screen and control system technology, applied in optics, instruments, nonlinear optics, etc., can solve problems such as inability to refresh, and achieve the effect of fast refresh

Inactive Publication Date: 2011-02-23
广东欧加控股有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] The first object of the present invention is to provide an Android system-based electronic ink screen refresh control system to solve the technical problem that the Android system-based electronic ink screen cannot refresh a specific area in the prior art

Method used

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  • Android system-based electronic ink screen refresh control system and method
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  • Android system-based electronic ink screen refresh control system and method

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Such as figure 1 Shown are the concrete steps of the embodiment of the present invention:

[0033] In the Android system, when the view needs to be refreshed, the invalidate function is called. After calling invalidate, the system will schedule the surface flinger, and the surface flinger will copy the current display content from the back buffer (a memory area allocated by the system, the size is equal to the video memory) to the front buffer (that is, video memory), and then the display I / O interface in the CPU displays the content in the front buffer on the display.

[0034] Therefore this embodiment adopts the following steps:

[0035] Step S110, in the list box interface, when the highlight bar scrolls from one position to another, pass the coordinates of the two rectangular areas of the moving track to surfaceflinger, a...

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Abstract

The invention relates to the technical field of Android system-based electronic ink screens, in particular to an Android system-based electronic ink screen refresh control system and an Android system-based electronic ink screen refresh control method. The system comprises a storage module and a display module, wherein the storage module is used for storing the image data of an entire screen; and the display module is used for refreshing and outputting the image data in the storage module to an electronic ink screen. The system also comprises an area module and a detection module, wherein the area module is used for extracting specific area coordinates from the system; and the detection module is used for detecting whether data is present in the area module, if data is present in the area module, the display module only refreshes and outputs the image data determined by the area coordinates; and if data is absent in the area module, the display module refreshes and outputs all the image data. The system and the method make Android well adapt to the display of the electronic ink screen, can rapidly refresh a local area, and simultaneously make the display difference of a TFT display screen and the electronic ink screen transparent to an application layer.

Description

technical field [0001] The invention relates to the technical field of electronic ink screens based on the Android system, in particular to an electronic ink screen refresh control system and method based on the Android system. Background technique [0002] Android was originally an intelligent system developed for mobile phones, which only supports the display of TFT screens. The driving method of the TFT display screen is to copy the content to be displayed to the video memory, and then display the content in the video memory to the display screen by the display I / O interface. [0003] However, the driving method of the electronic ink screen (Eink screen) is that when the content of the video memory is updated, the content in the video memory is first transferred to the memory controlled by the chip, and then the CPU notifies the chip of the rectangular area to be displayed, and notifies the chip to use a certain waveform mode (DU or GC16) to refresh the display content o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34G02F1/167G06F3/14
Inventor 王波
Owner 广东欧加控股有限公司
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