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Data acquisition method and device and storage medium

A data acquisition and data request technology, applied in the direction of digital output to display devices, etc., can solve the problems of occupying host resources, increasing host power consumption, and occupying data processing time.

Active Publication Date: 2018-12-11
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the increasingly rich display content, the data processing by the host may be delayed. Therefore, it often happens that the host has not finished processing the N+1th frame data, and it has already reached the time for the display driver to receive the N+1th frame data. Adjust the refresh rate of the display, that is, the dynamic refresh rate technology. In the dynamic refresh rate technology, the host takes up extra data processing time by sending Porch invalid data (ie, non-display area data)
However, such a processing method needs to occupy host resources, which will increase the power consumption of the host

Method used

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  • Data acquisition method and device and storage medium
  • Data acquisition method and device and storage medium
  • Data acquisition method and device and storage medium

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Embodiment Construction

[0039] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0040] The display driver receives data from the host frame by frame and displays the received data on the display device. Exemplarily, the display device may be an LCD. The display driver establishes a driving electric field by modulating the phase, peak value, frequency, etc. of the potential signal applied to the electrodes of the display device, so as to realize the display effect...

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Abstract

The invention relates to a data acquisition method and device and a storage medium, which are applied to a display driver. The method comprises: sending a data request signal to a host, the data request signal having a preset effective duration; if a first acknowledgement signal indicating completion of the host data processing is not received within an effective duration of the data request signal, extending the effective duration of the data request signal. In this way, the display driver can actively prolong the time of data request under the condition that the data processing of the host is delayed, thereby waiting for the data processing of the host to be completed and realizing the effect of dynamic refresh. Therefore, the dynamic refresh can be realized without occupying the resources of the host, and the resources of the host can be saved.

Description

technical field [0001] The present disclosure relates to the display field, and in particular to a data acquisition method, device and storage medium. Background technique [0002] At present, the data transmission process of LCD (Liquid Crystal Display, Liquid Crystal Display) is: the host processes the Nth frame of data, and after the processing is completed, when the time for the display driver to receive the Nth frame of data is reached, the Nth frame of data is sent to the display driver After that, the host starts to process the next frame of data, that is, the N+1th frame of data, and at the same time, the display driver can drive the display to display the received Nth frame of data. However, due to the increasingly rich display content, the data processing by the host may be delayed. Therefore, it often happens that the host has not finished processing the N+1th frame data, and it has already reached the time for the display driver to receive the N+1th frame data. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/14
CPCG06F3/14
Inventor 刘金山
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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