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    • 2. 发明申请
    • CIRCUIT AND METHOD OF DRIVING LIGHT EMITTING DIODES, AND LIGHT EMITTING DIODE SYSTEM HAVING THE SAME
    • 驱动发光二极管的电路和方法以及具有该发光二极管的发光二极管系统
    • US20110109243A1
    • 2011-05-12
    • US12840539
    • 2010-07-21
    • Yong-Hun KIMWan-Jung KimHee-Seok Han
    • Yong-Hun KIMWan-Jung KimHee-Seok Han
    • H05B37/02
    • H05B33/0812H05B33/0827Y02B20/345
    • A light-emitting-diode driving circuit includes a current driving circuit configured to control current signals flowing through light-emitting-diode strings in response to a first signal that includes information of a light-emitting-diode current, a dynamic headroom controller configured to generate a third control signal that changes according to a change of the current signals flowing through the light-emitting-diode strings based on voltage signals of first terminals of each of the light-emitting-diode strings and a second control signal that includes the information of the light-emitting-diode current, and a power supply circuit configured to generate a light-emitting-diode driving voltage that changes in response to the third control signal, and provide the light-emitting-diode driving voltage to second terminals of each of the light-emitting-diode strings.
    • 发光二极管驱动电路包括电流驱动电路,其被配置为响应于包括发光二极管电流的信息的第一信号来控制流过发光二极管串的电流信号,动态余量控制器被配置为 基于每个发光二极管串的第一端子的电压信号和包括该信息的第二控制信号,产生根据流过发光二极管串的电流信号的变化而变化的第三控制信号 以及电源电路,其被配置为产生响应于所述第三控制信号而变化的发光二极管驱动电压,并将所述发光二极管驱动电压提供给每个所述第二控制信号的第二端子 的发光二极管串。
    • 4. 发明申请
    • ARBITRATION CIRCUIT TO ARBITRATE CONFLICT BETWEEN READ/WRITE COMMAND AND SCAN COMMAND AND DISPLAY DRIVER INTEGRATED CIRCUIT HAVING THE SAME
    • 仲裁电路对读/写命令和扫描命令之间的冲突进行仲裁,并显示具有该命令的驱动器集成电路
    • US20100177106A1
    • 2010-07-15
    • US12686508
    • 2010-01-13
    • Wan-jung KimChan-ho LeeTae-hyoung Kim
    • Wan-jung KimChan-ho LeeTae-hyoung Kim
    • G09G5/39G09G5/00
    • G09G5/001G09G3/20G09G5/39
    • An arbitration circuit to arbitrate an issue between a read/write command and a scan command and a display driver integrated circuit including the arbitration circuit. The arbitration circuit includes a latch unit having a first latch circuit that latches and outputs a first signal related to a scan command and a second latch circuit that latches and outputs a second signal related to a read/write command, wherein the latch unit resets outputs of the first latch circuit and/or the second latch circuit in response to a ready signal related to a memory operation, and a maintaining unit to receive outputs of the first latch circuit and the second latch circuit, to generate a first internal signal to activate a scanning operation and a second internal signal to activate a reading/writing operation, maintain the first internal signal and the second internal signal, and to selectively activate the first internal signal or the second internal signal by changing the state of at least one of the first internal signal and second internal signal in response to the reset operation.
    • 仲裁电路,用于仲裁读/写命令和扫描命令之间的问题以及包括仲裁电路的显示驱动器集成电路。 仲裁电路包括一个锁存单元,该锁存单元具有锁存和输出与扫描命令有关的第一信号的第一锁存电路和锁存并输出与读/写命令相关的第二信号的第二锁存电路,其中锁存单元复位输出 的第一锁存电路和/或第二锁存电路响应于与存储器操作相关的就绪信号,以及维持单元,用于接收第一锁存电路和第二锁存电路的输出,以产生第一内部信号以激活 扫描操作和第二内部信号以激活读/写操作,保持第一内部信号和第二内部信号,并且通过改变第一内部信号或第二内部信号中的至少一个的状态来选择性地启动第一内部信号或第二内部信号 第一内部信号和第二内部信号响应复位操作。
    • 9. 发明授权
    • Circuit and method of driving light emitting diodes, and light emitting diode system having the same
    • 驱动发光二极管的电路和方法,以及具有该发光二极管的发光二极管系统
    • US08368312B2
    • 2013-02-05
    • US12840539
    • 2010-07-21
    • Yong-Hun KimWan-Jung KimHee-Seok Han
    • Yong-Hun KimWan-Jung KimHee-Seok Han
    • G09G5/10H05B37/00
    • H05B33/0812H05B33/0827Y02B20/345
    • A light-emitting-diode driving circuit includes a current driving circuit configured to control current signals flowing through light-emitting-diode strings in response to a first signal that includes information of a light-emitting-diode current, a dynamic headroom controller configured to generate a third control signal that changes according to a change of the current signals flowing through the light-emitting-diode strings based on voltage signals of first terminals of each of the light-emitting-diode strings and a second control signal that includes the information of the light-emitting-diode current, and a power supply circuit configured to generate a light-emitting-diode driving voltage that changes in response to the third control signal, and provide the light-emitting-diode driving voltage to second terminals of each of the light-emitting-diode strings.
    • 发光二极管驱动电路包括电流驱动电路,其被配置为响应于包括发光二极管电流的信息的第一信号来控制流过发光二极管串的电流信号,动态余量控制器被配置为 基于每个发光二极管串的第一端子的电压信号和包括该信息的第二控制信号,产生根据流过发光二极管串的电流信号的变化而变化的第三控制信号 以及电源电路,其被配置为产生响应于所述第三控制信号而变化的发光二极管驱动电压,并将所述发光二极管驱动电压提供给每个所述第二控制信号的第二端子 的发光二极管串。