LED (Light Emitting Diode) display screen and driving circuit thereof

A technology of LED display and drive circuit, which is applied in static indicators, instruments, etc., can solve problems such as heat generation and excessive power consumption of LED display, and achieve the effect of reducing power consumption and heat generation

Inactive Publication Date: 2011-07-20
SHENZHEN AOTO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a LED display drive circuit, aiming to solve the problems of excessive power consumption and serious heat generation in the existing LED display screens

Method used

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  • LED (Light Emitting Diode) display screen and driving circuit thereof
  • LED (Light Emitting Diode) display screen and driving circuit thereof

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0019] figure 1 The structure of the LED display driving circuit provided by the embodiment of the present invention is shown, and for the convenience of description, only the parts related to the embodiment of the present invention are shown.

[0020] The LED display drive circuit includes an AC-to-DC module 100 that converts the AC voltage into a DC voltage, an LED luminous tube 200, and a driver chip 300 connected to the cathode of the LED luminous tube 200 for constant current drive. The LED display drive circuit also includes a drive chip connected to the Between the AC-to-DC module 100 and t...

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Abstract

The invention is suitable for the field of LED (Light Emitting Diode) display and provides an LED display screen and a driving circuit thereof. In the invention, the driving circuit of the LED display screen comprises an intelligent power supply module connected between an AC to DC module and an anode of an LED light emitting tube and connected with a constant current driving end of a driving chip, wherein the intelligent power supply module regulates and outputs the anode voltage of the LED light emitting tube, which ensures the driving chip works at a minimum power consumption mode, according to the voltage of the constant current driving end of the driving chip, therefore, the power consumption and the heat productivity of the driving chip are reduced, and thus the power consumption and the heat productivity of the LED display screen are reduced.

Description

technical field [0001] The invention belongs to the field of LED display, in particular to an LED display screen and a driving circuit thereof. Background technique [0002] The LED display screen is composed of many small red, green, and blue lights by controlling the display mode of semiconductor light-emitting diodes, and the image is displayed by the degree of brightness of the lights. The LED display screen shows bright colors, strong three-dimensional sense, quiet like oil painting, moving like a movie, widely used in finance, taxation, industry and commerce, post and telecommunications, sports, advertising, factories and mines, transportation, education system, stations, docks, airports, Shopping malls, hospitals, hotels, banks, securities markets, construction markets, auction houses, industrial enterprise management and other public places. [0003] The reason why LED display has been widely valued and developed rapidly is inseparable from the advantages of LED its...

Claims

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Application Information

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IPC IPC(8): G09G3/32
Inventor 张田吴振志吴涵渠
Owner SHENZHEN AOTO ELECTRONICS
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