Driving method, device, system and equipment of LED display screen, and storage medium

Abstract

The embodiment of the invention discloses a display driving method, a device, a system and equipment of an LED display screen and a storage medium. The method comprises the steps of determining a reference gamma value set for an LED lamp bead in the LED display screen in a preset display period; determining the conduction frequency of the LED lamp beads in the display period; compensating the reference gamma value according to the conduction frequency to obtain a target gamma value; and driving an LED lamp bead to display according to the target gamma value. The embodiment can be realized through encoding in a control system of the LED display screen; hardware of a control system of the LED display screen does not need to be modified; the technical threshold is lower, the cost is low, thepopularization is easy, the parasitic capacitance of row and column PCB wiring can be balanced by the LED driving chip. Meanwhile, the conduction and cut-off speeds of the LED lamp beads during conduction are the same or similar by compensating the conduction time of the LED lamp beads, so that the low-gray color cast phenomenon is slowed down or eliminated.

Description

technical field [0001] The embodiments of the present invention relate to LED display technology, and in particular to a display driving method, device, system, equipment and storage medium of an LED display screen. Background technique [0002] In the LED (Light-Emitting Diode, light-emitting diode) display, in order to ensure accurate white balance and the brightness ratio of red (R), green (G), and blue (B), according to the target color temperature, Different current values ​​will be selected. [0003] However, the characteristics of the LED lamp beads that emit red (R), green (G), and blue (B) are different, resulting in that when displaying a low-brightness picture, the LED lamp beads emit red (R) at low brightness. , green (G), blue (B) three-color brightness ratio, and red (R), green (G), blue (B) three-color brightness ratio under high brightness is inconsistent, in short, low The white color temperature under brightness is inconsistent with the white color temper...

AI Technical Summary

Problems solved by technology

[0003] However, the characteristics of the LED lamp beads that emit red (R), green (G), and blue (B) are different, resulting in that when displaying a low-brightness picture, the LED lamp beads emit red (R) at low brightness. , green (G), blue (B) three-color brightness ratio, and red (R), green (G), blue (B) three-color brightness ratio under high brightness is inconsistent, in short, low The white color temperature under brightness is inconsistent with the white color temperature under high brightness. This phenomenon is the phenomenon of "low gray color cast"

[0004] In particular, when adjusting the display quality of the LED display, the LED driver chip is usually used to control the influence of the parasitic capacitance of the LED beads to balance the rows and columns of the PCB (Printed Circuit Board, printed circuit board) traces on the display effect. The phenomenon of "low gray color cast" is more serious

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