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    • 74. 发明申请
    • IMAGE DISPLAY APPARATUS, COLOR SIGNAL CORRECTION APPARATUS, AND COLOR SIGNAL CORRECTION METHOD
    • 图像显示装置,彩色信号校正装置和彩色信号校正方法
    • US20100271409A1
    • 2010-10-28
    • US12809230
    • 2009-10-20
    • Hiroyasu MakinoKatsumi AdachiSeiji MinamiHideki Nakata
    • Hiroyasu MakinoKatsumi AdachiSeiji MinamiHideki Nakata
    • G09G5/10
    • G09G3/291G09G2320/0209G09G2320/0242G09G2320/0266G09G2320/0666
    • Upon displaying an image using the subfield driving method, a luminance discrepancy or a chromaticity discrepancy is reduced while effects of horizontal crosstalk are reduced.An image display apparatus (50) that displays an image using the subfield driving method includes: an SF conversion unit (52) which (i) obtains a lighting pattern associated with a luminance indicated by an input color signal of each of red, green, and blue colors, with reference to an SF conversion table in which a lighting pattern indicating which subfield requires lighting among subfields is stored in association with a luminance indicated by a color signal of each of the colors, and (ii) generates for each of the colors, a lighting signal according to the obtained lighting pattern; and a PDP module (53) which displays the image by causing luminescent materials to produce luminescence according to the lighting signal, wherein the number of variations of the lighting pattern stored in at least one of the SF conversion table for blue and the SF conversion table for red is larger than the number of variations of the lighting pattern stored in the SF conversion table for green.
    • 在使用子场驱动方法显示图像时,在降低水平串扰的效果的同时降低亮度差异或色度差异。 使用子场驱动方法显示图像的图像显示装置(50)包括:SF转换单元(52),其(i)获得与由红色,绿色,蓝色的每一个的输入颜色信号所指示的亮度相关联的点亮图案, 和蓝色,参考SF转换表,其中指示哪个子场需要在子场之间照明的照明模式与由每种颜色的颜色信号指示的亮度相关联地存储,并且(ii)产生每个 颜色,根据获得的照明图案的点亮信号; 和PDP模块(53),其通过使发光材料根据照明信号产生发光来显示图像,其中存储在蓝色SF转换表和SF转换表中的至少一个中的点亮图案的变化数量 对于红色,大于存储在用于绿色的SF转换表中的照明模式的变化的数量。
    • 75. 发明申请
    • DRIVING DEVICE AND DRIVING METHOD OF PLASMA DISPLAY PANEL, AND PLASMA DISPLAY APPARATUS
    • 等离子体显示面板的驱动装置和驱动方法以及等离子体显示装置
    • US20100194732A1
    • 2010-08-05
    • US12671053
    • 2008-06-10
    • Takahiko OriguchiHidehiko ShojiHideki Nakata
    • Takahiko OriguchiHidehiko ShojiHideki Nakata
    • G09G3/28G06F3/038
    • G09G3/296G09G3/2927G09G3/2965G09G2310/0218G09G2310/066
    • In a setup period of a first SF, a first ramp waveform (L2) that drops from a first potential (Vsus) to a second potential (−Vad+Vset2) is applied to scan electrodes belonging to a first scan electrode group. On the other hand, a second ramp waveform (L3) that drops from a third potential (Vsus+Vscn) higher than the first potential (Vsus) to a fourth potential (−Vad+Vscn) higher than the second potential (−Vad+Vset2) is applied to scan electrodes belonging to a second scan electrode group. In addition, a scan pulse (Pa) is sequentially applied to the scan electrodes belonging to the first scan electrode group, and then a third ramp waveform (L4) that drops to the second potential (−Vad+Vset2) and a scan pulse (Pa) are sequentially applied to the scan electrodes belonging to the second scan electrode group in a write period of the first SF.
    • 在第一SF的建立期间,对属于第一扫描电极组的扫描电极施加从第一电位(Vsus)下降到第二电位(-Vad + Vset2)的第一斜坡波形(L2)。 另一方面,从比第一电位(Vsus)高的第三电位(Vsus + Vscn)下降到高于第二电位(-Vad + Vscn)的第四电位(-Vad + Vscn)的第二斜坡波形(L3) Vset2)应用于属于第二扫描电极组的扫描电极。 此外,扫描脉冲(Pa)依次施加到属于第一扫描电极组的扫描电极,然后是降低到第二电位(-Vad + Vset2)的第三斜坡波形(L4)和扫描脉冲 Pa)在第一SF的写入期间依次施加于属于第二扫描电极组的扫描电极。
    • 76. 发明申请
    • PLASMA DISPLAY PANEL DRIVE CIRCUIT AND PLASMA DISPLAY DEVICE
    • 等离子显示面板驱动电路和等离子体显示设备
    • US20090219272A1
    • 2009-09-03
    • US12279016
    • 2007-02-08
    • Hideki NakataSatoshi Ikeda
    • Hideki NakataSatoshi Ikeda
    • G06F3/038G09G3/28
    • G09G3/2965G09G3/2022G09G3/293G09G3/294G09G3/296G09G2310/066G09G2320/0271G09G2330/021G09G2330/025G09G2360/16
    • A PDP driving circuit and a plasma display apparatus with high image quality are realized. The PDP driving circuit of the present invention has a function of lowering the voltage of a recovery capacitor by connecting a step-up circuit including at least an inductor, a switch element, and a diode to the recovery capacitor, and regenerating the excessive voltage of the recovery capacitor to a sustain voltage power supply. Since the luminance can be lowered even in time of light load with low lighting rate by lowering the voltage of the recovery capacitor in time of low lighting rate, a high tone image display is realized, and the PDP driving circuit and the plasma display apparatus with high image quality are realized. In the data electrode driving circuit with slower write timing, the write operation is stabilized by raising the voltage of the recovery capacitor, whereby the PDP driving circuit and the plasma display apparatus with high image quality are realized.
    • 实现了具有高图像质量的PDP驱动电路和等离子体显示装置。 本发明的PDP驱动电路具有通过将至少包括电感器,开关元件和二极管的升压电路连接到恢复电容器来降低恢复电容器的电压的功能,并且再生过电压 将恢复电容器连接到维持电压电源。 由于即使在低照明率的低负载时,通过降低回光电容器的低电压的电压也可以降低亮度,所以实现了高色调图像显示,并且PDP驱动电路和等离子体显示装置具有 实现了高画质。 在具有较慢写入定时的数据电极驱动电路中,通过提高恢复电容器的电压来稳定写入操作,从而实现具有高图像质量的PDP驱动电路和等离子体显示装置。
    • 77. 发明申请
    • PLASMA DISPLAY PANEL DRIVE CIRCUIT AND PLASMA DISPLAY APPARATUS
    • 等离子显示面板驱动电路和等离子显示设备
    • US20090058310A1
    • 2009-03-05
    • US11817354
    • 2006-02-08
    • Yasuhiro AraiHideki NakataToshikazu NagakiSatoshi Ikeda
    • Yasuhiro AraiHideki NakataToshikazu NagakiSatoshi Ikeda
    • G09G3/10
    • G09G3/2965G09G3/2927G09G2310/066
    • A drive circuit for driving a plasma display panel (PDP) includes a pulse voltage generation circuit (5101) that contains main switching elements disposed on the high voltage side and on the low voltage side, is operable to generate a pulse voltage by operating the main switching elements in accordance with an output voltage from a first power supply (V1) and apply the pulse voltage to a PDP scan electrode and sustain electrode, and a reset voltage generation circuit (52) operable to generate a reset voltage in accordance with an output voltage from a second power supply (V2) and apply it to the PDP. The pulse voltage generator C circuit contains a first diode (D11) that prevents the voltage outputted by the reset voltage generation circuit from being applied backward to the first power supply and a first switching element (S11) connected to the first diode in parallel.
    • 用于驱动等离子体显示面板(PDP)的驱动电路包括:脉冲电压产生电路(5101),其包含设置在高压侧和低电压侧的主开关元件,可操作以通过操作主电压 根据来自第一电源(V1)的输出电压的开关元件,并将脉冲电压施加到PDP扫描电极和维持电极;以及复位电压产生电路(52),其可操作以根据输出产生复位电压 电压(V2),并将其应用于PDP。 脉冲电压发生器C电路包括防止由复位电压产生电路输出的电压向后施加到第一电源的第一二极管(D11)和并联连接到第一二极管的第一开关元件(S11)。
    • 80. 发明授权
    • Optical head and disk recording and reproducing apparatus
    • 光头和磁盘录放机
    • US07061834B2
    • 2006-06-13
    • US10293690
    • 2002-11-12
    • Hideki NakataHironori TomitaTakayuki Nagata
    • Hideki NakataHironori TomitaTakayuki Nagata
    • G11B7/00G11B7/135
    • G11B7/1374G11B7/082G11B7/08582G11B7/0943G11B7/131G11B7/1353G11B7/1378G11B7/13922G11B11/10532
    • An optical head and a disk recording and reproducing apparatus using the same. The optical head can realize a stable recording and reproducing with less cross-talk and can be made small and thin by making the objective lens to be small and thin. The optical head includes an optical system including a light source having astigmatic difference and an objective lens that forms an optical spot on an information recording medium. The optical system has optical properties in that the optical spot has an initial astigmatism on the design optical axis, the direction of the initial astigmatism is a direction in which a back-side line focus is substantially perpendicular to the radial direction of the information recording medium, and astigmatism is generated in the direction in which the initial astigmatism of the optical spot is reduced as the objective lens moves in the direction in which the objective lens is more distant from the design optical axis in the radial direction. The direction of astigmatism of the optical spot formed by the objective lens is a direction in which a back-side line focus is substantially perpendicular to the radial direction in the radial direction movement range of the objective lens.
    • 一种光头和使用其的盘记录和再现装置。 光头可以实现低串扰的稳定的记录和再现,并且可以通过使物镜变薄而薄而薄。 该光头包括一个包括具有散光差的光源和在信息记录介质上形成光点的物镜的光学系统。 光学系统具有光学特性,其中光点在设计光轴上具有初始像散,初始散光的方向是背面线焦点基本上垂直于信息记录介质的径向的方向 并且当物镜沿径向方向远离设计光轴的方向移动时,在光点的最初散光减小的方向上产生像散。 物镜形成的光斑的像散方向是在物镜的径向移动范围内背面侧线焦点与径向大致垂直的方向。