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Dynamic energy-saving chip of LED display screen and connecting structure

A LED display, dynamic technology, applied to static indicators, instruments, etc., can solve problems such as abnormal display, and achieve the effect of saving standby power consumption and reducing static power consumption

Pending Publication Date: 2020-07-03
SHENZHEN FM ELECTRONICS GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the LED display driver chip needs to immediately exit the standby state and enter the normal working state. However, it takes a certain amount of time for the LED display driver chip to enter the normal state, so the first frame of the LED display will display abnormally within the establishment time.

Method used

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  • Dynamic energy-saving chip of LED display screen and connecting structure
  • Dynamic energy-saving chip of LED display screen and connecting structure
  • Dynamic energy-saving chip of LED display screen and connecting structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of dynamic energy-saving chip of LED display screen, see figure 1 , including a shift register 1, a latch 3, a grayscale data detection module 4, an oscillator 2, a standby detection module 5, an LED constant current drive module 6 and a constant current setting module 7;

[0034] Wherein, one input end of the shift register 1 is used as the data input port SDI of the LED display dynamic energy-saving chip, the other input end of the shift register 1 is used as the clock input port CLK of the LED display dynamic energy-saving chip, and the input port of the shift register 1 is The data output terminal is used as the data output port SDO of the LED display dynamic energy-saving chip;

[0035] The display output terminal of the shift register 1 is respectively connected to the input terminal of the latch 3 and the input terminal of the grayscale data detection module 4, the output terminal of the grayscale data detection module 4 is connected to an input terminal o...

Embodiment 2

[0052] A connection structure of a LED display dynamic energy-saving chip, comprising a piece of the above-mentioned LED display dynamic energy-saving chip;

[0053] The data input port of the LED display dynamic energy-saving chip is connected to external grayscale data, the clock input port of the LED display dynamic energy-saving chip is connected to an external clock signal, and the drive output port of the LED display dynamic energy-saving chip drives the LED display.

[0054] The connection structure provided by the embodiments of the present invention is for brief description, and for the parts not mentioned in the embodiments, reference may be made to the corresponding content in the foregoing product embodiments.

Embodiment 3

[0056] A connection structure of a dynamic energy-saving chip for an LED display, comprising K pieces of the above-mentioned dynamic energy-saving chip for an LED display;

[0057] All LED display dynamic energy-saving chips are connected in series; the data input port of the first LED display dynamic energy-saving chip is connected to external grayscale data, and the clock input ports of all LED display dynamic energy-saving chips are connected to external clock signals;

[0058] Among other LED display dynamic energy-saving chips except the last LED display dynamic energy-saving chip, the data output port of the LED display dynamic energy-saving chip is connected to the data input port of the next LED display dynamic energy-saving chip, and all LED display dynamic energy-saving chips The drive output port of the chip drives the LED display.

[0059] Specifically, in the connection structure of the present invention, multiple LED display dynamic energy-saving chips are cascad...

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Abstract

The invention provides a dynamic energy-saving chip of an LED display screen. Two input ends of a shift register and a data output end of the shift register are respectively used as a data input port,a clock input port and a data output port of the dynamic energy-saving chip of the LED display screen; the display output end of the shift register is respectively connected to the input end of the latch and the input end of the gray scale data detection module, the output end of the gray scale data detection module is connected to one input end of the receiver detection module, and the output end of the oscillator is connected to the other input end of the receiver detection module; the output end of the latch is connected to the LED constant-current driving module; the output end of the standby detection module is respectively connected to the LED constant-current driving module and the constant-current setting module; the output end of the LED constant-current driving module serves asa driving output port of the LED display screen dynamic energy-saving chip. The LED display screen dynamic energy-saving chip can be suitable for an LED display screen, standby energy consumption of the LED display screen when the LED display screen does not work is better reduced, and the energy-saving performance is better.

Description

technical field [0001] The invention belongs to the technical field of integrated circuits, and in particular relates to a dynamic energy-saving chip and a connection structure of an LED display screen. Background technique [0002] The application of LED displays is becoming more and more extensive, so reducing energy consumption has gradually become the main demand. A current method to reduce energy consumption is to reduce unnecessary energy consumption of LED displays. Such as reducing the standby energy consumption when the LED display is not working. Since the LED display driver chip will have a working current of several mA when it is working, and the LED display screen has a relatively large number of LED display driver chips. Therefore, even if the LED display does not display content (black screen state), it still consumes more current. [0003] The existing method for reducing the standby energy consumption when the LED display is not working is as follows: Whe...

Claims

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Application Information

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IPC IPC(8): G09G3/32
CPCG09G3/32G09G2330/021
Inventor 李科举
Owner SHENZHEN FM ELECTRONICS GRP CO LTD
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