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LED display screen driven by energy-saving IC and energy-saving control IC of LED display screen

A technology of LED display and LED light-emitting tube, applied in static indicators, instruments, etc., can solve problems such as reducing the use experience, and achieve the effects of increasing uniformity, high-speed refresh, and eliminating charge accumulation.

Pending Publication Date: 2020-03-31
SHENZHEN SBC PHOTOELECTRICITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the traditional LED display will have the phenomenon of "crosshairs", "caterpillars" and "ghosting" due to the accumulation of charge in the circuit when the LED scans and displays, which greatly reduces the user experience

Method used

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  • LED display screen driven by energy-saving IC and energy-saving control IC of LED display screen
  • LED display screen driven by energy-saving IC and energy-saving control IC of LED display screen
  • LED display screen driven by energy-saving IC and energy-saving control IC of LED display screen

Examples

Experimental program
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Effect test

Embodiment Construction

[0024] Such as Figures 2 to 5 As shown, an LED display driven by an energy-saving IC, such as figure 2 As shown, it includes several row circuits L0, L1, L2, L3 and several column circuits S0, S1, S2, S3.

[0025] A plurality of LED light-emitting tubes 10 are connected between the row circuit and the column circuit, wherein one end of a plurality of LED light-emitting tubes 10 connected in the row circuit L0 is connected to the row circuit L0, and a plurality of the LED light-emitting tubes 10 are connected to the row circuit L0. The other ends are respectively connected with several circuits S0, S1, S2 and S3 of the column.

[0026] One end of the plurality of LED light emitting tubes 10 connected in the column circuit S0 is connected to the column circuit S0, and the other ends of the plurality of LED light emitting tubes 10 are respectively connected to the plurality of row circuits L0, L1, L2, L3.

[0027] Several of the row circuits L0, L1, L2, L3 are connected to ex...

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PUM

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Abstract

The invention relates to an LED display screen driven by an energy-saving IC and an energy-saving control IC of the LED display screen. The LED display screen comprises a plurality of rows of circuitsand a plurality of columns of circuits, a plurality of LEDs are connected between the row circuit and the column circuit; each column circuit is connected with an intelligent processing circuit; theintelligent processing circuit comprises a reverse pre-charging circuit and a discharging circuit. The reverse pre-charging circuit is connected with the discharging circuit; the reverse pre-chargingcircuit provides reverse voltage for the column circuit. When the reverse pre-charging circuit is switched on, the reverse pre-charging circuit inputs reverse voltage into the corresponding column circuit; when the reverse pre-charging circuit is closed, the reverse pre-charging circuit is cut off as a whole, the discharging circuit is opened when the LED light-emitting tubes in the correspondingcolumn circuit are in a BLACK state, and residual charges accumulated in the LED light-emitting tubes in the corresponding column circuit are discharged through the discharging circuit by means of thedischarging circuit.

Description

technical field [0001] The invention relates to an LED display screen and its control IC, in particular to an LED display screen and its control IC including an intelligent processing circuit including a reverse precharging circuit and a discharging circuit. Background technique [0002] The LED display is a flat panel display, which is composed of small LED module panels and is used to display various information such as text, images, and videos. LED electronic display integrates microelectronics technology, computer technology, and information processing, and has the advantages of bright colors, wide dynamic range, high brightness, long life, stable and reliable work, etc. LED displays are widely used in commercial media, cultural performance markets, stadiums, information dissemination, press releases, securities transactions, etc., and can meet the needs of different environments. [0003] In the application of LED display, with the LED dot pitch getting smaller and sma...

Claims

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Application Information

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IPC IPC(8): G09G3/32
CPCG09G3/32G09G2320/0233G09G2320/0257
Inventor 刘剑冰田志辉邹海波刘众孚
Owner SHENZHEN SBC PHOTOELECTRICITY