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LED driving circuit and driving method, LED display system

An LED driver and LED light string technology, applied in static indicators, instruments, etc., can solve the problems that the signal output terminal cannot output normal control signals, affect the image display, and the LED lights cannot be lit normally.

Active Publication Date: 2022-03-15
HANGZHOU SHIXIN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when a certain drive circuit or multiple continuous drive circuits of the LED light string unit in the LED display system fail, the signal output terminal of the drive circuit will not be able to output normal control signals, resulting in the failure of the drive circuit and subsequent The LED lights controlled by the drive circuit cannot be lit normally, which affects the image display

Method used

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  • LED driving circuit and driving method, LED display system
  • LED driving circuit and driving method, LED display system
  • LED driving circuit and driving method, LED display system

Examples

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Embodiment Construction

[0033] Various embodiments of the invention will be described in more detail below with reference to the accompanying drawings. In the various drawings, the same elements are denoted by the same or similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale.

[0034] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0035] figure 1 A schematic block diagram of an LED display system in the prior art is shown. The LED display system includes a control terminal 100 and an LED display screen 200 , and the control terminal 100 is connected to the LED display screen 200 . The LED display screen 200 includes a plurality of cascaded LED light string units (C1-Cn). Each LED light string unit includes at least one LED driving circuit and an LED light string. Multiple LED driving circuits of multiple cascaded LED la...

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PUM

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Abstract

The present application discloses an LED driving circuit and its driving method, and an LED display system. The LED driving circuit includes a main input terminal, at least one spare input terminal and an output terminal; Configure signals and data signals, or receive configuration signals and data signals from any previous LED drive circuit via a spare input terminal, and there is at least one LED drive circuit between the previous LED drive circuit and the current LED drive circuit; LED drive circuit The configuration signal and data signal of the cascaded LED drive circuit after the LED drive circuit of the current stage are forwarded to the next-stage LED drive circuit and / or the subsequent LED drive circuit connected to it via the output terminal. There is at least one LED driving circuit between each stage of LED driving circuits. The present application can realize the continuous damage of multiple circuits without affecting the normal operation of subsequent circuits.

Description

technical field [0001] The invention relates to the technical field of LED display, in particular to an LED driving circuit, a driving method, and an LED display system. Background technique [0002] In application projects such as outdoor landscape lighting and auxiliary lighting, low-power LED chips are widely used. LED light strings and LED exterior wall display screens manufactured by LED light strings according to predetermined rules are used to display various patterns and text information. This kind of LED light string and the LED display system combined with the LED light string include a control terminal and an LED display. The LED display screen includes a plurality of LED light string units, and each LED light string unit corresponds to a display area of ​​the LED display screen. The LED light string unit can be used individually, or a plurality of LED light string units can be cascaded in sequence to form a group to expand the display area of ​​the display scre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32
CPCG09G3/32G09G2300/0426G09G2300/0861G09G2310/0272G09G2320/04G09G2320/08
Inventor 陈日仪鲍宏王亮
Owner HANGZHOU SHIXIN TECH CO LTD