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    • 1. 发明授权
    • Optical pick-up device having lens for first-order light beam convergence
    • 具有用于一阶光束会聚的透镜的光学拾取装置
    • US06920098B2
    • 2005-07-19
    • US10003070
    • 2001-12-06
    • Young Sik KimChul Min Kim
    • Young Sik KimChul Min Kim
    • G11B7/125G11B7/135
    • G11B7/1263G11B7/1353G11B7/1378
    • Disclosed is a lens for light collection for total reflection for a front monitor photodiode (PD) in an optical pick-up device. The optical pick-up device includes a light source provided with a holographic unit adapted to diffract a light beam, an optical disc arranged in front of the light source and adapted to allow data to be written thereof or to be read therefrom, a monitor photodiode arranged in front of the light source in a diagonal direction with respect to the light source, the monitor photodiode serving to monitor a laser power of the light source, and a lens for light collection arranged between the light source and the monitor photodiode and adapted to converge a first-order diffracted beam outputted from the holographic unit and to apply the converged first-order diffracted beam to the monitor photodiode. The optical pick-up device can achieve an enhancement in the efficiency of utilizing a main beam, namely, a zero-order diffracted beam, an improvement in optical characteristics, and an improvement in the axial distance between the light source and the monitor PD.
    • 公开了一种用于光拾取装置中的前监视器光电二极管(PD)的全反射的光收集透镜。 光学拾取装置包括:光源,其设置有适于衍射光束的全息单元;布置在光源前方的光盘,适于允许写入数据或从其读取数据;监视器光电二极管 布置在相对于光源的对角线方向上的光源前方,用于监视光源的激光功率的监视光电二极管和布置在光源和监视光电二极管之间的用于光采集的透镜, 会聚从全息单元输出的一级衍射光束并将会聚的一级衍射光束施加到监视光电二极管。 光学拾取装置可以实现利用主光束的效率的提高,即零级衍射光束,光学特性的改善以及光源和监视器PD之间的轴向距离的改善。
    • 5. 发明申请
    • Liquid Crystal Display
    • 液晶显示器
    • US20090185095A1
    • 2009-07-23
    • US12256094
    • 2008-10-22
    • Young Sik KimKyo Seop ChooTae Hwan Kim
    • Young Sik KimKyo Seop ChooTae Hwan Kim
    • G02F1/136G02F1/1343
    • G02F1/134309G02F2001/13312
    • A liquid crystal display capable of improving a color reproduction range is disclosed. The liquid crystal display includes a liquid crystal panel having a plurality of gate lines and a plurality of data lines which cross each other to define a plurality of unit pixel regions; a first pixel region having a first dot pitch among individual pixel regions in at least one of the unit pixel regions; and a second pixel region having a second dot pitch among the individual pixel regions in the unit pixel regions, wherein the first and second dot pitches of the first and second pixel regions are different from each other. By this configuration, the pixel electrodes are formed to have the same opening ratio in the individual pixel regions forming a unit pixel by changing the shape and size of the pixel electrodes in a region having a sensor and a region without a sensor, thereby improving a color reproduction range and improving the display quality of the liquid crystal display.
    • 公开了能够改善色彩再现范围的液晶显示器。 液晶显示器包括具有多条栅极线和多条数据线的液晶面板,它们彼此交叉以限定多个单位像素区域; 在所述单位像素区域中的至少一个中的各个像素区域中具有第一点间距的第一像素区域; 以及在单位像素区域中的各个像素区域中具有第二点间距的第二像素区域,其中第一和第二像素区域的第一和第二点距彼此不同。 通过这种构造,通过在具有传感器的区域和没有传感器的区域中改变像素电极的形状和尺寸,在形成单位像素的各个像素区域中形成像素电极具有相同的开口率,从而改善 色彩再现范围和提高液晶显示器的显示质量。
    • 7. 发明授权
    • Shift register
    • 移位寄存器
    • US07382348B2
    • 2008-06-03
    • US11022849
    • 2004-12-28
    • Young Sik KimSu Hwan MoonSun Yong LeeKwang Sik Hwang
    • Young Sik KimSu Hwan MoonSun Yong LeeKwang Sik Hwang
    • G09G3/36
    • G09G3/3677G11C19/184G11C19/28
    • A shift register having an amorphous silicon thin film transistor for decreasing a distortion of the output signal is disclosed. In the shift register having a plurality of stages for shifting an input signal using first and second driving voltages, first and second clock signals and a start pulse, each of said plurality of stages includes an output buffer for selectively applying any one of the first and second clock signals and the second driving voltage to an output line under control of first and second nodes; a pre-charger for pre-charging the first driving voltage into the first node in response to said start pulse; a second node controller for selectively supplying the first and second driving voltages to the second node in such a manner to be opposite to the first node using said start pulse and an output signal of the next stage; and a first node controller for supplying the second driving voltage to the first node in a time interval excluding the time interval for said pre-charging.
    • 公开了一种具有用于减小输出信号失真的非晶硅薄膜晶体管的移位寄存器。 在具有用于使用第一和第二驱动电压移位输入信号的多个级的移位寄存器中,第一和第二时钟信号以及起始脉冲,所述多个级中的每一个包括输出缓冲器,用于选择性地施加第一和第二驱动电压 第二时钟信号和第二驱动电压到第一和第二节点的控制下的输出线; 预充电器,用于响应于所述起始脉冲将第一驱动电压预充电到第一节点; 第二节点控制器,用于使用所述起始脉冲和下一级的输出信号以与第一节点相反的方式选择性地将第一和第二驱动电压提供给第二节点; 以及第一节点控制器,用于在除了所述预充电的时间间隔之外的时间间隔内向第一节点提供第二驱动电压。
    • 9. 发明授权
    • Optical system and optical pickup apparatus therewith
    • 光学系统及其光拾取装置
    • US06876502B2
    • 2005-04-05
    • US10242774
    • 2002-09-13
    • Young Sik Kim
    • Young Sik Kim
    • G02B17/08G11B7/00G11B7/125G11B7/135G02B27/00
    • G11B7/127G11B7/1374G11B2007/0006G11B2007/13727
    • An optical pickup apparatus is capable of recording data in and/or reproducing data from recording mediums with different formats by using one single optical system. The optical pickup apparatus includes an optical system, wherein a filtering surface that transmits or reflects wavelengths from different rays coats the peripheral portion of the center portion of an input surface and the peripheral portion of the center of an output surface. A transmitting surface having a conical shape is disposed in a central portion of the input surface and projected inwardly or outwardly with respect to the input surface. Therefore, the optical pickup apparatus can be applied to different recording mediums using rays having different wavelengths and a lightweight, small optical pickup apparatus can be implemented by using one single optical system.
    • 光拾取装置能够通过使用一个单一的光学系统来记录来自具有不同格式的记录介质的数据和/或再现数据。 光学拾取装置包括光学系统,其中透射或反射来自不同光线的波长的滤光表面涂覆输入表面的中心部分的周边部分和输出表面的中心的周边部分。 具有圆锥形状的透光表面设置在输入表面的中心部分并相对于输入表面向内或向外突出。 因此,可以使用具有不同波长的光线将光学拾取装置应用于不同的记录介质,并且可以通过使用一个单一光学系统来实现轻便的小型光学拾取装置。