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Adaptive LED display control system

A LED display and control system technology, applied to static indicators, instruments, etc., can solve problems such as glare, LED display brightness changes, and unclear display during the day, and achieve the effect of simple structure and reduced energy consumption

Inactive Publication Date: 2015-08-19
SICHUAN UD TECH
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0006] However, because the display brightness of the LED cannot be changed with the external ambient light, there is a problem that the display is unclear during the day or too bright at night.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 , 2 shown.

[0026] The control system of the self-adaptive LED display is mainly composed of a step-down filter rectifier circuit, a voltage stabilizing circuit connected with the step-down filter rectifier circuit and a switch voltage regulating circuit, and the voltage stabilizing circuit and the switch voltage regulating circuit are connected with a central Processing system, the central processing system is connected with a light environment detection circuit, and the switch voltage regulation circuit is also connected with an LED row and column drive circuit and an LED display in turn; a PWM is set between the switch voltage regulation circuit and the central processing system. circuit;

[0027] The switching regulator circuit includes a triode D1 connected to the PWM circuit; 1 pin of the triode D1 is connected to the PWM circuit, and 3 pins of the triode D1 are connected to the triode D2 and connected to 1 pin of the triode D2, so Pin 2 of th...

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PUM

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Abstract

The invention discloses a control system of a self-adaptation LED display screen. The control system of the self-adaptation LED display screen is mainly composed of a decompression smoothing rectifier circuit, a voltage stabilizing circuit and a switch voltage regulator circuit, wherein the voltage stabilizing circuit and the switch voltage regulator circuit are connected with the decompression smoothing rectifier circuit. The voltage stabilizing circuit and the switch voltage regulator circuit are connected with a central processing system simultaneously, the central processing system is connected with a luminous environment detection circuit, the switch voltage regulator circuit is further sequentially connected with an LED rank driving circuit and an LED display screen, and the switch voltage regulator circuit and the central processing system are directly provided with PWM circuits. The control system of the self-adaptation LED display screen has the advantages of being simple in structure, capable of reducing energy consumption and capable of automatically conducting control and adjustment according to the external luminous environment.

Description

technical field [0001] The invention relates to automatic control of LED display screens, in particular to a control system for adaptive LED display screens in light environment. Background technique [0002] LED display (LED panel): LED is light emitting diode, the English abbreviation of light-emitting diode, referred to as LED. It is a display method by controlling semiconductor light-emitting diodes. Its general appearance is composed of many light-emitting diodes, usually red, and characters are displayed by turning on and off the lights. A display screen used to display various information such as text, graphics, images, animations, market prices, videos, and video signals. [0003] LED display (LEDdisplay, LED Screen): also known as electronic display or floating word screen. It is composed of LED dot matrix, through [0004] Red, blue and green LED lights are turned on and off to display text, pictures, animations and videos, and the content can be replaced at any...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32
Inventor 林锋
Owner SICHUAN UD TECH
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