Method for reducing stroboflash after light emitting of LED
A technology of stroboscopic and dimming circuits, applied in electroluminescent light sources, light sources, electric light sources, etc., can solve problems such as time delay and stroboscopic, and achieve the effects of reducing time difference, effective lighting effects, and solving screen flickering problems
Inactive Publication Date: 2019-10-22
SUZHOU YOUYUE ELECTRONICS CO LTD
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[0002] Traditional keyboard LED structure: LEDs are connected in parallel. The light effect of existing keyboard LEDs is controlled by PWM to give LED pulse signals and control parallel LEDs. PWM turns LEDs on and off through high and low levels. Each LED receives the signal in turn. Lighting and light effects are presented, the pulse process signal is open and closed to the LED power supply, there is a time delay (ie time difference) between the first LED and the last LED, so there will be stroboscopic phenomenon
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[0014] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0015] See attached figure 1 As shown in -3, a method for reducing the strobe after LED light emission in this embodiment includes a substrate 1 and a circuit, the circuit is welded on the substrate 1, the circuit includes multiple IC2s, multiple IC2s are connected in series, and the ICs are in the form of a matrix Distributed on the substrate 1, multiple pins of each IC2 are respectively connected to LED3, LED3 in this embodiment can be patch LED3 or LED3 with pins, each IC2 and LED3 corresponding to the IC2 are packaged in On the corresponding circuit, each IC2 is located on the side of the corresponding multiple LED3s. When the current passes ...
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The invention discloses a method for reducing stroboflash after light emitting of an LED. The method comprises a substrate and a circuit. The circuit is welded on the substrate and comprises a plurality of ICs. The plurality of ICs are connected in series. A plurality of pins of each IC are respectively connected with an LED. Each IC and the LED corresponding to the IC are packaged on a circuit corresponding to the IC. Each IC is arranged on one side of the plurality of LEDs corresponding to the IC. When current passes through the plurality of ICs, each IC can control the current to pass through the plurality of LEDs connected with the IC or not to pass through the plurality of LEDs connected with the IC. The plurality of ICs control the plurality of LEDs corresponding to the plurality ofICs to be turned on, turned off, partially turned on or partially turned off together. By changing the mode that the LEDs are parallelly connected on a traditional keyboard, through the serially connected ICs, each IC drives the LED connected with the IC, and each LED is controlled by the independent IC, so that synchronization of light emitting between the LEDs is realized, the time difference between the LEDs during light emitting is reduced, a more effective light emitting effect is realized, and the problem of the screen flash of the LEDs on the keyboard during realization of light effectsis solved.
Description
technical field [0001] The invention relates to a method for reducing flicker after LED lights. Background technique [0002] Traditional keyboard LED structure: LEDs are connected in parallel. The light effect of existing keyboard LEDs is controlled by PWM to give LED pulse signals and control parallel LEDs. PWM turns LEDs on and off through high and low levels. Each LED receives the signal in turn. Lighting and light effects are presented, the pulse process signal is open and closed to the LED power supply, and there is a time delay (that is, time difference) between the first LED and the last LED, so there will be stroboscopic phenomenon. Contents of the invention [0003] In order to overcome the above-mentioned disadvantages, the object of the present invention is to provide a method for reducing the flicker after the LED emits light, which solves the flicker phenomenon. [0004] In order to achieve the above purpose, the technical solution adopted by the present inv...
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IPC IPC(8): H05B33/08H05B33/02H05B44/00
CPCH05B33/02H05B45/10H05B45/00
Inventor 王友平
Owner SUZHOU YOUYUE ELECTRONICS CO LTD