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11. 发明专利

JP2005221906A Front panel and display device using the same 有权
标题翻译：使用相同的前面板和显示设备
公开(公告)号：JP2005221906A
公开(公告)日：2005-08-18
申请号：JP2004031504
申请日：2004-02-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OSAWA MICHITAKA
IPC分类号： G02B1/10 , F21V8/00 , G02B5/02 , G02B27/00 , G02F1/1335 , G09F9/00
CPC分类号： G02B6/0001 , G02B27/0018
摘要： PROBLEM TO BE SOLVED: To provide a front panel which can increase a light-room contrast and reduce deterioration in picture quality and a decrease in contrast due to inter-pixel crosstalk and stray light when combined with a display panel which emits output light having no directivity or broad directivity, and a display device using the same. SOLUTION: Acicular light guide bodies in a shape of a frustum of a cone are stood in large numbers; and the output light of a display element is propagated by total reflection in the acicular light guide bodies and external light is repeatedly reflected on a surface forming a wedge surface to attenuate. Further, when light absorbing film is coated on the surface of acicular light guide bodies, a contrast ratio is made large. With this structure, a high contrast is obtained in a light room, the acicular light guide bodies stood in large numbers are made long, and light incidence surfaces of the acicular light guide bodies are brought into contact with a display panel display surface to reduce crosstalk between adjacent pixels, thereby reducing a decrease in contrast due to display light. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种前面板，当与发出输出的显示面板组合时，可以增加光室对比度并降低图像质量的劣化和由于像素间串扰和杂散光引起的对比度的降低没有方向性或宽方向性的光，以及使用其的显示装置。
解决方案：锥形截头锥形的针状导光体大量放置; 并且显示元件的输出光通过针状导光体中的全反射传播，并且外部光在形成楔形表面的表面上反复反射以衰减。此外，当在针状导光体的表面上涂布光吸收膜时，对比度变大。利用这种结构，在光室中获得高对比度，大量放置的针状光导体长得多，并且针状导光体的光入射面与显示面板显示面接触以减少串扰在相邻像素之间，从而减少由于显示光引起的对比度的降低。版权所有（C）2005，JPO＆NCIPI

12. 发明专利

JP2005037968A Drive circuit of capacitive load and display device using the same 审中-公开
标题翻译：电容负载的驱动电路和使用它的显示装置
公开(公告)号：JP2005037968A
公开(公告)日：2005-02-10
申请号：JP2004308993
申请日：2004-10-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NUNOMURA KUNIHIRO , AKIYAMA NOBORU , INOUE KOICHI , SANO YUJI , OHIRA HIROSHI , OSAWA MICHITAKA
IPC分类号： G09G3/20 , G09G3/288 , G09G3/296 , G09G3/298 , H03K17/00 , H03K17/693 , G09G3/28
摘要： PROBLEM TO BE SOLVED: To reduce the electric power loss of a circuit for driving capacitive load. SOLUTION: A reverse-current limiting switch 96 having a parallel diode 86 of a pull-up switch 85 and a parallel diode 97 of a reverse direction is disposed between a high-voltage electric power source terminal 71 and a high-voltage output terminal Q 1. The output of unnecessary nicks in a continuously high pattern is averted and electric power recovery can be effectively carried out and therefore, the driving circuit and driver IC for the capacitive load suitable for reducing, for example, the electric power loss and the display panel device providing the capacitive load can be realized. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：降低用于驱动电容性负载的电路的功率损耗。解决方案：具有上拉开关85的并联二极管86和反向的并联二极管97的反向限流开关96设置在高电压电源端子71和高电压端子71之间输出端子Q 1.避免了连续高图案中的不必要的缺口的输出，并且可以有效地执行电力恢复，因此用于电容负载的驱动电路和驱动器IC适合于减少例如电力损耗并且可以实现提供电容性负载的显示面板装置。版权所有（C）2005，JPO＆NCIPI

13. 发明专利

JP2010092075A Method and device for driving plasma display 有权
标题翻译：用于驱动等离子体显示的方法和装置
公开(公告)号：JP2010092075A
公开(公告)日：2010-04-22
申请号：JP2010012751
申请日：2010-01-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKA KAZUTAKA , OSAWA MICHITAKA , OTAKA HIROSHI , MIZUTA TAKAHISA , MASUDA TAKEO
IPC分类号： G09G3/20 , G09G3/288 , G09G3/291 , G09G3/292 , G09G3/296 , G09G3/298
摘要： PROBLEM TO BE SOLVED: To provide a device for driving a plasma display capable of displaying a high quality image picture by stably driving a display panel without malfunction even if an interval between discharge cells is narrowed. SOLUTION: A detection circuit 4 detects a light emitting pixel ratio of one screen from R, G, B digital data from A/D converter circuits 1, 2 and 3 and inputs it to a control pulse power supply 5 as a signal Vcont. According to the light emitting pixel ratio, the power supply 5 lowers subfield reset voltage in an image of a low ratio, and raises the subfield reset voltage in an image of high ratio. A signal processing circuit 7 performs processing required for display to the R, G, B digital signals from the A/D converter circuits 1, 2 and 3. A drive circuit 8 inserts a control pulse or the like required for the display into the signal from the processing circuit 7 from the power supply 5 and converts it into voltage for turning on a plasma display panel 9. Thus, even if the interval between the discharge cells is narrow, the occurrence of a bright spot or the like on a dark screen is prevented and reset discharge on a bright screen is surely performed, and the panel 9 is stably driven without malfunction. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：即使放电单元之间的间隔变窄，提供一种用于驱动能够通过稳定地驱动显示面板而无故障地显示高质量图像图像的等离子体显示器的装置。解决方案：检测电路4检测来自A / D转换器电路1,2和3的R，G，B数字数据的一个屏幕的发光像素比，并将其作为信号输入到控制脉冲电源5 Vcont的。根据发光像素比，电源5降低低比例的图像中的子场复位电压，并且以高比率的图像提高子场复位电压。信号处理电路7对来自A / D转换器电路1,2和3的R，G，B数字信号进行显示所需的处理。驱动电路8将显示所需的控制脉冲等插入信号从电源5的处理电路7将其转换为等离子体显示面板9的接通电压。因此，即使放电单元之间的间隔窄，在黑屏上出现亮点等并且确保在亮屏幕上进行复位放电，并且面板9被稳定地驱动而没有故障。版权所有（C）2010，JPO＆INPIT

14. 发明专利

JP2009265682A Display device, pdp display device, and its driving circuit 审中-公开
标题翻译：显示装置，PDP显示装置及其驱动电路
公开(公告)号：JP2009265682A
公开(公告)日：2009-11-12
申请号：JP2009153194
申请日：2009-06-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OSAWA MICHITAKA , OHIRA HIROSHI , MORI MUTSUHIRO , OTAKA SHIGEO , ISHIZAKA KATSUO
IPC分类号： G09G3/20 , G09G3/288 , G09G3/291 , G09G3/296
摘要： PROBLEM TO BE SOLVED: To provide a driving method that reduces voltage drop at the time of conduction and exhibits an excellent current interruption capability.
SOLUTION: Current characteristics of an AC-type driving, in which a charge current is stopped independently of an applied voltage even though a voltage is applied, and a speed-up means for IGBT are used. Specifically, the IGBT is used as an output element for a driving circuit of a panel, wherein the IGBT is provided with the speed-up means. For example, although a PDP sustain circuit requires a high element breakdown voltage, because the IGBT can reduce the voltage drop at the time of conduction with little dependence of the element breakdown voltage, the defect of the IGBT can be compensated by combining the sustain circuit with the AC-type PDP.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种降低导通时的电压降的驱动方法，具有优异的电流中断能力。解决方案：使用即使施加电压而与施加的电压无关的充电电流也停止的AC型驱动的电流特性，以及IGBT的加速装置。具体地，IGBT用作面板的驱动电路的输出元件，其中IGBT设置有加速装置。例如，尽管PDP维持电路需要高的元件击穿电压，但是由于IGBT可以在导通时减小元件击穿电压几乎不依赖的电压降，因此可以通过组合维持电路来补偿IGBT的缺陷与AC型PDP。版权所有（C）2010，JPO＆INPIT

15. 发明专利

JP2007264239A Plasma display apparatus and driving method 审中-公开
标题翻译：等离子体显示装置和驱动方法
公开(公告)号：JP2007264239A
公开(公告)日：2007-10-11
申请号：JP2006088266
申请日：2006-03-28
申请人： Advanced Pdp Development Corp , Fujitsu Ltd , Hitachi Ltd , 富士通株式会社 , 株式会社日立製作所 , 株式会社次世代Pdp開発センター
发明人： OSAWA MICHITAKA , SHINOHE KOJI , AWAMOTO KENJI
IPC分类号： G09G3/291 , G09G3/20 , G09G3/288 , G09G3/292 , G09G3/293 , G09G3/294 , G09G3/296 , G09G3/298 , H01J11/12 , H01J11/20 , H01J11/24 , H01J11/26 , H01J11/46
摘要： PROBLEM TO BE SOLVED: To solve problems that in a plasma display apparatus where bus electrodes are extremely approached to each other, an inductance component is large in a magnetic field formed by a flowing current, time-lapse change of a current or the increase of the current value itself may impose large load on a drive circuit.
SOLUTION: In the plasma display apparatus provided with a plasma display panel having proximity electrode structure, a drive circuit is arranged only on one side of the plasma display panel and a high-speed pulse current which is a large current is allowed to flow between adjacent electrodes in respectively reverse directions to cancel a generated magnetic field.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题为了解决在总线电极相互接近的等离子体显示装置中的电流分量在由流动电流形成的磁场，电流的延时变化或电流值本身的增加可能对驱动电路造成较大的负载。解决方案：在具有接近电极结构的等离子体显示面板的等离子体显示装置中，驱动电路仅布置在等离子体显示面板的一侧，并且允许大电流的高速脉冲电流在相邻电极之间分别相反方向流动以消除所产生的磁场。版权所有（C）2008，JPO＆INPIT

16. 发明专利

JP2006337397A Plasma display driving circuit and display device using the same 审中-公开
标题翻译：等离子显示驱动电路和使用该显示器的显示器件
公开(公告)号：JP2006337397A
公开(公告)日：2006-12-14
申请号：JP2005158297
申请日：2005-05-31
申请人： Advanced Pdp Development Corp , Hitachi Ltd , 株式会社日立製作所 , 株式会社次世代Pdp開発センター
发明人： OSAWA MICHITAKA
IPC分类号： G09G3/20 , G09G3/291 , G09G3/293 , G09G3/296
摘要： PROBLEM TO BE SOLVED: To provide a plasma display device capable of a reducing withstand voltage of an address driving circuit and reducing its power loss.
SOLUTION: A load of an addressing IC is alleviated by applying an addressing voltage for a variation portion by a different power source, when the addressing voltage is increased. On the other hand, regarding transmission of an address data, the number of signal lines and generation of noise are simultaneously reduced by current transmission of the data as a series data by an ultra-high speed transmission system such as a current transfer logic (CTL) system.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供能够降低地址驱动电路的耐受电压并降低其功率损耗的等离子体显示装置。解决方案：当寻址电压增加时，通过对不同的电源施加用于变化部分的寻址电压来减轻寻址IC的负载。另一方面，关于地址数据的发送，通过例如电流传输逻辑（CTL）等超高速传输系统作为串行数据的数据的当前传输，同时减少信号线的数量和噪声的产生）系统。版权所有（C）2007，JPO＆INPIT

17. 发明专利

JP2005024808A Display unit 审中-公开
标题翻译：显示单元
公开(公告)号：JP2005024808A
公开(公告)日：2005-01-27
申请号：JP2003189160
申请日：2003-07-01
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OSAWA MICHITAKA
IPC分类号： H05K7/20 , G09F9/00
摘要： PROBLEM TO BE SOLVED: To solve a problem in which it is not easy for a conventional cooling system to secure reliability since heat resistance is too large to smoothly diffuse and propagate heat and a local temperature rise is caused for an image displaying peak luminance with small area.
SOLUTION: A cooling mechanism structured so that grooves for capillarity are formed on the entire surface of a panel and an evacuated sealed container filled with working liquid is provided uses the heat of vaporization of the working liquid to speedily conduct and disperse heat. This cooling mechanism reduces concentration of heat on a local heating part to greatly improve the reliability of the panel. Further, the limit of a temperature rise is relaxed in improving the peak luminance, so the dynamic range of video is expanded to improve the picture quality.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题为了解决传统的冷却系统难以确保可靠性的问题，因为耐热性太大而不能平滑地扩散和传播热量，并且导致图像显示峰值的局部温度升高亮度小，面积小。解决方案：提供一种冷却机构，其结构使得在面板的整个表面上形成用于毛细作用的凹槽，并且提供了填充有工作液体的抽真空的密封容器，其中使用工作液体的蒸发热来快速地传导和分散热量。该冷却机构减少局部加热部件的热量集中，大大提高了面板的可靠性。此外，在提高峰值亮度时放宽温度上限，因此视频的动态范围被扩大以提高图像质量。版权所有（C）2005，JPO＆NCIPI

18. 发明专利

JP2008293042A Driving method and device for plasma display 有权
标题翻译：用于等离子显示的驱动方法和装置
公开(公告)号：JP2008293042A
公开(公告)日：2008-12-04
申请号：JP2008200340
申请日：2008-08-04
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKA KAZUTAKA , OSAWA MICHITAKA , OTAKA HIROSHI , MIZUTA TAKAHISA , MASUDA TAKEO
IPC分类号： G09G3/20 , G09G3/288 , G09G3/291 , G09G3/292 , G09G3/293 , G09G3/298
摘要： PROBLEM TO BE SOLVED: To provide a driving device for a plasma display capable of displaying a high image quality picture, by stably driving a display panel without a malfunction even if an interval between discharge cells is narrowed. SOLUTION: In this driving device, a detecting circuit 4 detects and inputs the light emitting picture element ratio of one image screen from R, G, B digital data from A/D conversion circuits 1, 2 and 3 to a control pulse power source 5 as a signal Vcont. The power source 5 lowers subfield reset voltage in an image of low ratio in response to the light emitting picture element ratio, and heightens the subfield reset voltage in an image of high ratio. A signal processing circuit 7 performs processing required for display to R, G, B digital signals from the A/D conversion circuits 1, 2 and 3. A driving circuit 8 converts a control pulse into voltage for turning on a plasma display panel 9 by inserting the control pulse required for the display from the power source 5 into the signal from the processing circuit 7. Thus, the panel 9 can be stably driven without a malfunction by surely performing reset discharge on a bright image screen by preventing generation of a luminescent spot on a dark image screen even when the interval between the discharge cells is narrow. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：即使放电单元之间的间隔变窄，通过稳定地驱动显示面板而不产生故障，提供能够显示高图像质量图像的等离子体显示器的驱动装置。解决方案：在该驱动装置中，检测电路4将来自A / D转换电路1,2和3的R，G，B数字数据的一个图像屏幕的发光像素比率检测并输入到控制脉冲电源5作为信号Vcont。电源5响应于发光像素比降低低比例的图像中的子场复位电压，并且以高比率的图像提高子场复位电压。信号处理电路7对来自A / D转换电路1,2和3的R，G，B数字信号进行显示所需的处理。驱动电路8将控制脉冲转换为用于接通等离子体显示面板9的电压，将来自电源5的显示所需的控制脉冲插入来自处理电路7的信号。因此，通过在明亮的图像屏幕上确保执行复位放电，通过防止产生发光，可以稳定地驱动面板9而不发生故障即使当放电单元之间的间隔窄时，也可以在暗图像屏幕上进行定点。版权所有（C）2009，JPO＆INPIT

19. 发明专利

JP2008152063A Plasma display apparatus 审中-公开
标题翻译：等离子显示设备
公开(公告)号：JP2008152063A
公开(公告)日：2008-07-03
申请号：JP2006340669
申请日：2006-12-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OSAWA MICHITAKA , WATANUKI SEIJI
IPC分类号： G09F9/00 , G09G3/20 , G09G3/288 , G09G3/291 , G09G3/294 , G09G3/296 , G09G3/298
摘要： PROBLEM TO BE SOLVED: To provide a single-sided plasma display apparatus having a structure in which spurious radiation and noises can be reduced.
SOLUTION: In a single-sided plasma display apparatus which performs single-sided drive of a PDP from a Y electrode (3T) side, one end in a column direction of a metallic plate (16) disposed on the PDP back is connected to an X electrode terminal (4T), and the other end of the metallic plate is connected to GND of a Y circuit board (20) having a Y driving section. As a result, a sustain current flowing from the Y electrode to the X electrode in a sustain period and a GND current flowing to the metallic plate are reversed with respect to each other. Thereby, the sustain current and the GND current are mutually offset to suppress the spurious radiation and the noises.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有可以减少杂散辐射和噪声的结构的单面等离子体显示装置。解决方案：在从Y电极（3T）侧进行PDP的单面驱动的单面等离子体显示装置中，设置在PDP背面的金属板（16）的列方向的一端为连接到X电极端子（4T），并且金属板的另一端连接到具有Y驱动部分的Y电路板（20）的GND。结果，在维持期间从Y电极流向X电极的维持电流和流向金属板的GND电流相互相反。因此，维持电流和GND电流相互抵消以抑制杂散辐射和噪声。版权所有（C）2008，JPO＆INPIT

20. 发明专利

JP2007058001A Plasma display device 审中-公开
标题翻译：等离子体显示设备
公开(公告)号：JP2007058001A
公开(公告)日：2007-03-08
申请号：JP2005245231
申请日：2005-08-26
申请人： Advanced Pdp Development Corp , Hitachi Ltd , 株式会社日立製作所 , 株式会社次世代Pdp開発センター
发明人： INOUE KOICHI , AKIYAMA YUKIO , WATANUKI SEIJI , OSAWA MICHITAKA
IPC分类号： G09G3/20 , G09F9/00 , G09G3/288 , G09G3/296 , G09G3/298
摘要： PROBLEM TO BE SOLVED: To provide a mounting structure to reduce the inductance in a driving circuit of a sustaining discharge circuit of an AC-driven plasma display.
SOLUTION: A plasma display device comprises: a pair of wiring boards fixed on a conductor for fixing a panel; a pair of electric current supply sections arranged on the wiring board; a pair of connection wiring sections connecting the end portion of the wiring board and the end portion of the panel; and a pair of semiconductor switch modules which are arranged on the pair of wiring boards respectively and which control the supply of electric current. Each of the pair of semiconductor switch modules includes: a first connection terminal to connect with the electric current supply section; a second connection terminal to connect with the connection wiring section via surface conductors on the wiring board; a third connection terminal to connect with a ground layer arranged in the wiring board; and a module case having a semiconductor switch. The second connection terminal and the third connection terminal are arranged on one side of the module case, and the first connection terminal is arranged on the other side of the module case.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种安装结构，以减少AC驱动等离子体显示器的维持放电电路的驱动电路中的电感。解决方案：等离子体显示装置包括：一对固定在导体上用于固定面板的接线板; 布置在所述布线板上的一对电流供给部; 连接布线板的端部和面板的端部的一对连接布线部; 以及一对半导体开关模块，其分别布置在一对布线板上并且控制电流供应。一对半导体开关模块中的每一个包括：与电流供应部连接的第一连接端子; 第二连接端子，经由布线板上的表面导体与连接布线部分连接; 第三连接端子，其与布置在所述布线板中的接地层连接; 以及具有半导体开关的模块壳体。第二连接端子和第三连接端子布置在模块壳体的一侧，并且第一连接端子布置在模块壳体的另一侧上。版权所有（C）2007，JPO＆INPIT

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