A method and device for refreshing the screen according to a preset frame rate
A screen refresh and frame rate technology, which is applied in the direction of digital output to display devices, cathode ray tube indicators, instruments, etc., can solve the problems of system bandwidth waste and high screen refresh frame rate, and achieve the effect of avoiding waste
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[0041] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0042] One of the core ideas of the embodiments of the present invention is to control the read operation interval between the last read frame buffer and the next read frame buffer so that it is not less than the expected time, wherein the expected time is based on the preset frame The time it takes to refresh a frame of data calculated based on the rate, and the read operation interval is the interval between two read operation starting points; since the read frame buffer can only buffer one frame of image data at a time, even if the read speed is very fast Fast, so the control can also ensure that the refresh time of a frame of image data is not less than the expected time, so that the maximum total number of pixels scanned on th...
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