LED signal free conversion device, conversion method and display screen

The invention is applicable to the LED technical field, and provides an LED signal free conversion device, conversion method and display screen. A secondary display signal and a primary display signal are inputted to a signal receiving box 8 via two signal input ports. If two display signals are bot...

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Bibliographic Details
Main Author FAN QINQUN
Format Patent
LanguageChinese
English
Published 18.09.2013
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
PHYSICS
SEALS
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Summary:The invention is applicable to the LED technical field, and provides an LED signal free conversion device, conversion method and display screen. A secondary display signal and a primary display signal are inputted to a signal receiving box 8 via two signal input ports. If two display signals are both in a normal state, the primary display signal is selected to be outputted; when the primary display signal is in an abnormal state, the primary display signal is automatically switched to the secondary display signal. If the primary display signal recovers to the normal state, the secondary display signal is automatically switched back to the primary display signal. The conversion device is also enabled to manually switch and detect and select the primary display signal and the secondary display signal. Besides, an indicating light on the signal receiving box is also enabled to display a working state of a power supply, the primary display signal and the secondary display signal in real time. In a word, when two
Bibliography:Application Number: CN2012160420