LED controller, LED control device and LED control method
A technology of light-emitting diodes and control devices, which can be applied to electrical components and other directions, and can solve problems such as flickering of light-emitting diode units and increasing duty cycle.
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[0037] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0038] Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numerals.
[0039] refer to Figure 4 , the first embodiment of the LED controller 2 of the present invention is used with a video source 7 , a current source 8 and a LED group 9 . The video source 7 generates a vertical synchronization signal VSYNC, a data signal DATA, a first clock signal FCLK1 and a second clock signal FCLK2. The vertical synchronization signal VSYNC carries image frequency information, and its frequency is variable (for example, within the range of 70 Hz to 144 Hz). The data signal DATA carries brightness information and delay information. The frequency of the first clock signal FCLK1 is fixed (for example, 12 MHz). The frequency of the second clock signal FCLK2 is variable ...
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