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    • 4. 发明授权
    • Method for driving passive matrix OLED
    • 无源矩阵OLED的驱动方法
    • US07847763B2
    • 2010-12-07
    • US11160105
    • 2005-06-09
    • Shang-Li Chen
    • Shang-Li Chen
    • G09G3/30
    • G09G3/3216G09G3/2014G09G2310/0248G09G2320/0242
    • A method for driving a passive matrix organic light emitting diode (PMOLED) is provided. A pulse width modulation (PWM) constant current is provided to OLED pixels connected to a segment of a PMOLED array without voltage pre-charging the segment. Then, an offset value corresponding to missing gray scales of the OLED pixel is determined. According to the missing gray scales, the gray scales of the OLED pixel are rescaled starting from the offset. The OLED pixel is thus driven by a compensated PWM constant current having the rescaled gray scales during each horizontal line period.
    • 提供了一种驱动无源矩阵有机发光二极管(PMOLED)的方法。 脉冲宽度调制(PWM)恒定电流被提供给连接到PMOLED阵列段的OLED像素,而不对该段进行预充电。 然后,确定与OLED像素的缺失灰度级相对应的偏移值。 根据丢失的灰度级,OLED像素的灰度从偏移开始重新缩放。 因此,OLED像素由在每个水平行周期期间具有重新缩放的灰度级的补偿PWM恒定电流驱动。
    • 6. 发明授权
    • Shift-register circuit and shift-register unit
    • 移位寄存器电路和移位寄存器单元
    • US06829322B2
    • 2004-12-07
    • US10617782
    • 2003-07-14
    • Jun-Ren ShihShang-Li ChenBo-Wen WangJan-Ruei Lin
    • Jun-Ren ShihShang-Li ChenBo-Wen WangJan-Ruei Lin
    • G11C1900
    • G11C19/00G11C19/28
    • A shift-register unit. The first transistor includes a first source/drain coupled to a first terminal, a second source/drain, and a first gate coupled to a reset signal to stop the shift-register unit outputting a pulse signal. The second transistor includes a third source/drain coupled to the second source/drain, a fourth source/drain coupled to a second terminal, and a second gate coupled to a setting signal to initial the shift-register unit. The third transistor includes a fifth source/drain coupled to an output terminal, a third gate coupled to the second source/drain and a sixth source/drain coupled to a clock signal to start outputting the pulse signal. The fourth transistor includes a seventh source/drain coupled to the first terminal, an eighth source/drain coupled to the output terminal and a fourth gate coupled to a refresh signal to set a voltage level of the shift-register unit in a standby mode.
    • 移位寄存器单元。 第一晶体管包括耦合到第一端子的第一源极/漏极,第二源极/漏极以及耦合到复位信号的第一栅极,以停止移位寄存器单元输出脉冲信号。 第二晶体管包括耦合到第二源极/漏极的第三源极/漏极,耦合到第二端子的第四源极/漏极和耦合到设置信号的第二栅极以初始化移位寄存器单元。 第三晶体管包括耦合到输出端的第五源极/漏极,耦合到第二源极/漏极的第三栅极和耦合到时钟信号的第六源极/漏极,以开始输出脉冲信号。 第四晶体管包括耦合到第一端子的第七源极/漏极,耦合到输出端子的第八源极/漏极和耦合到刷新信号的第四栅极,以将待机模式中的移位寄存器单元的电压电平设置。
    • 7. 发明授权
    • Low-power LCD data driver for stepwisely charging
    • 低功耗LCD数据驱动器,用于逐步充电
    • US06538647B1
    • 2003-03-25
    • US09606576
    • 2000-06-28
    • Shang-Li ChenChien-Yu Yi
    • Shang-Li ChenChien-Yu Yi
    • G09G500
    • G09G3/2011G09G3/3614G09G3/3688
    • A power-saving data driver for stepwisely applying alternating driving voltages with a predetermined number of steps to a plurality of data lines in a liquid crystal display is disclosed. The data driver is comprised of a clocking means, a plurality of reference voltages, and a plurality of analog voltage driver. The clocking means is used for providing clock signals for stepwisely charging and discharging. The plurality of reference voltages work as steps of said stepwisely charging and discharging. The reference voltages are distributed between the system voltage and the ground. Each of the analog voltage driver corresponds to one of the data lines. A given pixel is stepwisely driven from a driving voltage of the last pixel as a beginning voltage to a driving voltage of the given pixel as a target voltage. The reference voltages between the beginning voltage and the target voltage are turned-on in order according to the clock signals generated by the clocking means.
    • 公开了一种省电数据驱动器,用于向液晶显示器中的多条数据线逐步施加具有预定步数的交替驱动电压。 数据驱动器由时钟装置,多个参考电压和多个模拟电压驱动器组成。 时钟装置用于提供逐步充电和放电的时钟信号。 多个参考电压作为所述逐步充电和放电的步骤工作。 参考电压分布在系统电压和地之间。 每个模拟电压驱动器对应于一条数据线。 给定像素作为初始电压从作为目标电压的给定像素的驱动电压的最后一个像素的驱动电压逐步驱动。 开始电压和目标电压之间的参考电压按照由时钟装置产生的时钟信号依次导通。