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LED control device and LED control method

A control device and control signal technology, applied in the field of control, can solve the problems of increasing LED loss and affecting the service life of LED display screens, and achieve the effects of reducing LED loss, shortening the time of weak light emission, and speeding up consumption

Active Publication Date: 2016-09-28
GUANGDONG VTRON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The appearance of this situation will increase the loss of the LED and affect the service life of the LED display

Method used

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  • LED control device and LED control method
  • LED control device and LED control method
  • LED control device and LED control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] An embodiment of the present invention provides an LED control device, which is used for eliminating afterimages on an LED display screen and prolonging the service life of the LED display screen. The embodiment of the present invention also provides related LED control methods, which will be described respectively below.

[0014] Wherein, one LED display screen may include multiple LEDs, and the embodiment of the present invention only uses the first LED (D1) and the second LED (D2) as examples for description.

[0015] For the basic structure of the LED control device provided by the embodiment of the present invention, please refer to figure 1 ,mainly includes:

[0016] The control module 101 is configured to receive a control signal, and control the power supply end to be turned on or off according to the control signal, and the power supply end is used for the first LED (D1) and / or the second LED (D2) in the LED control device powered by;

[0017] The discharge ...

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PUM

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Abstract

The embodiment of the invention discloses an LED control device, which is used for eliminating afterimages, improving the image quality of the LED display screen, and improving the lifespan of the LED display screen. Embodiments of the present invention include: a control module, configured to receive a control signal, and control the power supply terminal to be turned on or off according to the control signal, and the power supply terminal is used for the first LED ( D1 ) and the first LED in the LED control device. / or the second LED (D2) to supply power; a discharge module for releasing the charge of the anode of the first LED (D1) and / or the second LED (D2) when the control module turns off the power supply terminal . Embodiments of the present invention also provide a related LED control method and an LED display screen.

Description

technical field [0001] The invention relates to the control field, in particular to an LED control device and an LED control method. Background technique [0002] With the development of optoelectronic technology, the application of LED display is becoming more and more extensive. The current LED display screen is obtained by integrating multiple LEDs. Each LED is turned on and lit when its power supply end is turned on, and the residual charge on its anode is slowly consumed and then extinguished when the power supply end is turned off. Generally, LED display screens often have to withstand high-frequency switching currents above 2KHz when they are working. Due to the high switching frequency of the current, the lighting period of the same LED is very short, and the LED does not have enough time to discharge the residual charge of the anode. Even if the power supply end is turned off, the LED still emits light weakly, which makes the whole picture look like afterimages and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32
Inventor 陈和平许景翔
Owner GUANGDONG VTRON TECH CO LTD