LED (light-emitting diode) light panel and LED display screen system

A technology of LED display screen and LED light board, which is applied in the direction of static indicators, lamp circuit layout, lighting devices, etc., can solve the problems of many and complicated connecting lines, and additionally configure monitoring boards, etc., and achieve low cost and simplified connection Effect
CN103533727AActive Publication Date: 2014-01-22XIAN NOVASTAR TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
XIAN NOVASTAR TECH
Publication Date
2014-01-22

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Abstract

The invention relates to an LED light panel and an LED display screen system adopting the same. The LED light panel comprises a plurality of LEDs, a first input and output interface, a second input and output interface, an LED drive circuit, a data feedback circuit and a terminating circuit. The LED drive circuit is electrically connected with the first input and output interface and used for driving and controlling the LEDs; the data feedback circuit is electrically connected with the first input and output interface and the second input and output interface; and the terminating circuit is electrically connected with the LED drive circuit, the data feedback circuit and the second input and output interface and used for selectively connecting the LED drive circuit with the second input and output interface or connecting the LED drive circuit with the data feedback circuit according to the connection status of the second input and output interface. As the data feedback circuit and the terminating circuit are arranged on the LED light panel, the fault of each LED light panel of an LED display screen can be detected without additionally arranging a monitoring board construction loop, consequently, wiring can be simplified, and the cost is low.
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Description

technical field

[0001] The invention relates to the field of display technology, in particular to an LED lamp panel and an LED display screen system. Background technique

[0002] As a new type of display technology, LED (Light emitting diode) display system has gradually been accepted by the market due to its advantages of energy saving, environmental protection, and high brightness, and has been widely used in urban media, urban transportation and other fields.

[0003] Among them, the LED display system in the traffic field is generally used to display information such as road names, traffic conditions, and speed limits. Every LED on the LED display may fail. When the number and location of LED failures reach a certain level, it will It will affect the display of information, and in severe cases, it will convey wrong information. Therefore, how to enable the LED display system in the traffic field to detect LED faults in time is one of the problems to be solved urgently....

Claims

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