Lighting control circuit and signal split-screen conversion lighting equipment with protection function

Abstract

The invention provides a lighting control circuit and signal split-screen conversion lighting equipment with a protection function. The lighting control circuit comprises an input and output unit, a misplug protection unit and a control unit, wherein the input and output unit comprises an input interface module and at least two output interface modules; the input interface module comprises at least three input interfaces; each output interface module comprises at least three output interfaces; the control unit is used for controlling whether a second input interface and each second output interface are conducted or not and controlling the whether a third input interface and each third output interface are conducted or not; and the misplug protection unit is used for controlling the secondinput interface to output a high power supply voltage signal to each first output interface when a low power supply voltage signal is connected to the second input interface, and controlling the second input interface not to output the voltage signal to each first output interface when no signal is connected to the second input interface. According to the lighting control circuit, multiple screenscan be lighted through one lighting device, so that the cost is reduced, an output pin of the lighting device can be protected and the phenomenon of burnout of various to-be-tested display panels isavoided.

Description

technical field [0001] The invention relates to the technical field of lighting test, in particular to a lighting control circuit, signal split screen and switching lighting equipment with protection function. Background technique [0002] In the prior art, a lighting machine (for example, a graphic generator) can only perform a lighting test on one display panel to be tested, so it is necessary to purchase large quantities of high-cost lighting machines. And when performing this operation on the existing lighting equipment, the interfaces included in the output interface unit of the lighting equipment cannot be correctly connected to the corresponding interfaces of the display panel to be tested due to improper plugging and unplugging by the operator, which will lead to Check the burnout phenomenon of the display panel. Contents of the invention [0003] The main purpose of the present invention is to provide a lighting control circuit, signal split screen and conversion...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a lighting control circuit, signal split screen and conversion lighting equipment with protection function, so as to solve the problem that in the prior art, one lighting machine can only perform lighting test on one display panel to be tested, and there will be a problem of lighting failure. The phenomenon of burning the display panel to be tested due to improper plugging and unplugging by the operator

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