The present disclosure provides a system comprising: a light emitting diode (LED); a switching circuit configured to, when in a first state, connect an anode of the LED to a positive potential and a cathode of the LED to a ground potential, thereby enabling a current to flow through the LED in a first direction; and when in the second state, performing one of the following: connecting a ground potential to the anode of the LED; connecting the negative potential to the anode of the LED; and connecting a cathode of the LED to a positive potential and an anode of the LED to a ground potential, thereby enabling a current to flow through the LED in a second direction, where the second direction is opposite to the first direction; and a driver module configured to selectively transition the switching circuit from the first state to the second state and from the second state to the first state.
本公开提供了一种系统,该系统包括:发光二极管(LED);开关电路,该开关电路被配置为:当处于第一状态时,将LED的阳极连接到正电位并且将LED的阴极连接到接地电位,从而使得电流能够在第一方向上流过LED;以及当处于第二状态时,执行以下操作中的一者:将接地电位连接到LED的阳极;将负电位连接到LED的阳极;以及将LED的阴极连接到正电位并将LED的阳极连接到接地电位,从而使得电流能够在第二方向上流过LED,其中第二方向与第一方向相反;和驱动器模块,该驱动器模块被配置为选择性地将开关电路从第一状态转变到第二状态以及从第二状态转变到第一状态。
Light emitting diode afterglow effect minimization
发光二极管余辉效应最小化
2023-04-04
Patent
Elektronische Ressource
Chinesisch
IPC: | H05B ELECTRIC HEATING , Elektrische Heizung / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein |
Europäisches Patentamt | 2022
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