A cache processing method and device for mobile terminal display

Abstract

The invention discloses a buffer processing method and a device for display of a mobile terminal. The buffer processing method and the device are used for avoiding the problem that data displayed on a screen of the terminal do not belong to the same frame, preventing the problem of a torn screen due to the fact that data displayed at a time do not belong to the same frame, and improving a display effect. The method includes sequentially judging access statuses and access types of at least two buffer zones set in the mobile terminal; writing data to be displayed into an optional buffer zone when the buffer zone is determined to be in an accessible status and a current access type of the buffer zone is further determined to be a write operation type, and modifying the current access type of the buffer zone into a read operation type after the write operation is completed; and reading data in an optional buffer zone and displaying the data when the buffer zone is determined to be in an access status and a current access type of the buffer zone is further determined to be a reading operation type, and modifying the access type of the buffer zone into a write operation type after the reading operation is completed.

Description

technical field [0001] The present invention relates to the technical field of terminal display, in particular to a buffer processing method and device for mobile terminal display. Background technique [0002] The display system of a mobile terminal device (such as a mobile phone) is an important part. The quality of the display effect directly determines the quality of the mobile terminal device. The display system of the host (host) can finally display the data on the liquid crystal display (Liquid On Crystal Display (LCD), intermediate transition of buffer is required. That is, the upper layer application system of the mobile terminal first writes the data to be displayed into the buffer, and when displaying, the driving part of the mobile terminal obtains the data from the buffer and displays it on the LCD. [0003] Existing mobile terminal display systems mostly use RGB interface (that is, the interface for inputting the three primary colors of red, green, and blue). ...

AI Technical Summary

Problems solved by technology

If the rate at which the application system part of the mobile terminal sends data to the buffer (i.e. the rate at which data is written to the buffer) is greater than the rate at which the drive part acquires data (i.e. the rate at which the buffer is read), this causes the drive part to fail to After the data of the display frame is fetched, the data in the buffer has been overwritten by the new data sent by the application system, so that part of the data displayed on the LCD is the data of the current display frame, and part of it is the data of the next frame to be displayed, which results in The screen does not display the same frame of data, and screen tearing occurs; similarly, if the rate at which the application system part of the mobile terminal sends data to the buffer is lower than the rate at which the driver part obtains data, the application system part has not yet finished sending the data of the current display frame. , that is, the data of the previous display frame has not been completely covered, and the driving part has read the data in the entire buffer, so that part of the LCD display is the data of the current display frame, and the other part is the data of the previous display frame. The display is not the same picture, and the screen is tearing

Images