| 摘要 |
The present invention relates to a front-opened type cross section LED bulletin system having a display keypad capable of identifying an output state in real time, which is installed in a vehicle, a window of a building, a reception desk, etc. to display characters, images, etc. toward the frontside (outside). The front-opened type cross section LED bulletin system having a display keypad comprises a front-opened type cross section LED bulletin board and a keypad. The front-opened type cross section LED bulletin board transmits, in real time, output data outputted in real time by a light emitting unit to the keypad. The keypad includes: an output data receiving unit to input the output data outputted by the front-opened type cross section LED bulletin board; a data converting unit to convert the output data received by the output data receiving unit; and a display unit to output the output data converted by the data converting unit. Therefore, the front-opened type cross section LED bulletin system is able to: identify, in real time, content outputted through the front-opened type cross section LED bulletin board in the keypad; fundamentally prevent the wrong content from being outputted; and easily control operation and identify, in real time, the content through the keypad without spot limitation or location limitation using a wireless data communication between the front-opened type cross section LED bulletin board and the keypad. |
