Display control method and its device for LED display screen non-linear correction
A technology for an LED display screen and a display control method, which is applied to static indicators, instruments, etc., can solve the problems of high cost and complicated hardware circuits, and achieve the effect of enhancing the sense of hierarchy and increasing the distinguishable display gray level.
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[0022] The non-linear correction and display control method of the LED display screen includes the following steps: (1) constructing a non-linear correction curve; (2) forming non-linear correction data according to the constructed non-linear correction curve; (4) forming a non-linear data storage table and storing In the nonlinear memory, the data in the nonlinear memory is stored according to the data obtained by the nonlinear curve function calculation; (5) Grayscale data reading and scanning: read all grayscale data stored in the grayscale memory And scan, compare all the grayscale data with the address data of the nonlinear memory, if it is greater than or equal to, output 1, otherwise output 0, and the scanning is completed in turn. (6) Data sending: output the corrected grayscale data to the display screen.
[0023] Nonlinear correction curve, similar to Y=KX r Type of function curve, where r is the nonlinear correction coefficient. According to the visual characterist...
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