LED display cascade control circuit and LED display screen
A cascade control, LED drive technology, applied in the direction of static indicators, instruments, etc.
Active Publication Date: 2019-08-02
UNILUMIN GRP
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Problems solved by technology
[0003] Based on this, it is necessary to provide a LED display cascaded control circuit and LED display for the problem that the traditional module needs to fix the input terminal / output terminal.
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[0029] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.
[0031] For example, an LED display cascade control circuit includes: a first signal selection module, a second signal selection module...
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The invention relates to an LED display cascade control circuit and an LED display screen. According to the LED display cascade control circuit, a first signal selection module and a second signal selection module, and a first control signal and a second control signal sent by a control module, the first signal selection module obtains a light-emitting signal from a last-stage cascade circuit andsends the signal to the second signal selection module through an LED driving module, and the second signal selection module sends the signal to a next-stage cascade circuit; or the second signal selection module obtains the light-emitting signal from the last-stage cascade circuit and sends the signal to the first signal selection module through the LED driving module, and the first signal selection module sends the signal to the next-stage cascade circuit, so that the first signal selection module and the second signal selection module can receive light-emitting signal and send the light-emitting signal, the input direction and the output direction do not need to be selected during installation, the expansion cascade is more convenient, the compatibility between products can be improved,and the production cost is reduced.
Description
technical field [0001] The invention relates to the technical field of LED display, in particular to an LED display cascade control circuit and an LED display screen. Background technique [0002] As a new type of display technology, LED (Light Emitting Diode) display is gradually accepted by the market due to its advantages of energy saving, environmental protection, and high brightness, and thus is widely used in urban media, urban transportation and other fields. With the development of electronic technology, LED display screens with wider screens are becoming more and more popular among users. In order to increase the screen width of the display screen, the cabinet modules of the LED display screen are usually cascaded. The definition of the module signal input interface and output interface is different, so that the module distinguishes the left and right fixed signal input / output, that is, the left interface needs to be fixed as the input The terminal or output termin...
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IPC IPC(8): G09G3/32
CPCG09G3/32
Inventor 舒成虎
Owner UNILUMIN GRP