会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明专利
    • Plasma display device
    • 等离子体显示设备
    • JP2009128413A
    • 2009-06-11
    • JP2007300438
    • 2007-11-20
    • Hitachi Ltd株式会社日立製作所
    • OSAWA MICHITAKA
    • G09F9/00H05K7/20
    • H05K7/2099
    • PROBLEM TO BE SOLVED: To sufficiently dissipate heat of a heat generating part in a sustain circuit of a plasma display device, and to enhance the performance of the sustain circuit that handles fast and large current pulses. SOLUTION: A heat pipe 103 is used so that a heat generating part 102 and a radiation fin 104 that is a heat dissipating part can be arranged separately. By arranging structural members, the heat dissipating part can be positioned at the center of the screen and the like allowing the physical thickness of the heat dissipating part. Thus, an operator does not feel, when handling a device, that the device is thick and, in addition, the occurrence of failures such as noises due to the increase in wiring length is prevented. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了充分消散等离子体显示装置的维持电路中的发热部分的热量,并且提高处理快速和大电流脉冲的维持电路的性能。 解决方案:使用热管103,使得可以分开设置作为散热部的发热部102和散热片104。 通过布置结构构件,散热部件可以位于屏幕等的中心,从而允许散热部件的物理厚度。 因此,操作者在处理设备时感觉不到设备较厚,并且还防止了由于布线长度的增加而导致诸如噪声之类的故障的发生。 版权所有(C)2009,JPO&INPIT
    • 3. 发明专利
    • Plasma display driving method and apparatus
    • 等离子体显示驱动方法和装置
    • JP2008009443A
    • 2008-01-17
    • JP2007198301
    • 2007-07-31
    • Hitachi Ltd株式会社日立製作所
    • NAKA KAZUTAKAOSAWA MICHITAKAOTAKA HIROSHIMIZUTA TAKAHISAMASUDA TAKEO
    • G09G3/20G09G3/288G09G3/291G09G3/292G09G3/293G09G3/296G09G3/298H04N5/66
    • PROBLEM TO BE SOLVED: To provide a plasma display driving apparatus which can stably drive a display panel without malfunction even if an interval between discharge cells is reduced, and achieves display of a high quality video. 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, 3 and input the ratio to a control pulse power supply 5 as a signal Vcont. According to the light-emitting pixel ratio, the power supply 5 lowers a sub-field reset voltage for an image with a low light-emitting pixel ratio, and raises the sub-field reset voltage for an image with a high ratio. A signal processing circuit 7 applies processing necessary for display to the R, G, B digital signals from the A/D converter circuits 1, 2, 3. A drive circuit 8 inserts a control pulse or the like necessary for display into the signal from the processing circuit 7 from the power supply 6 and converts it to voltage for turning on the display panel 9. Thus, even if the interval between the discharge cells is small, the occurrence of a bright spot or the like in a dark screen can be prevented and reset discharge in a bright screen can be surely performed, and the panel 9 can be stably driven without malfunction. COPYRIGHT: (C)2008,JPO&INPIT
    • 解决的问题:提供一种等离子体显示驱动装置,即使放电单元之间的间隔减小也能够不发生故障地稳定地驱动显示面板,能够实现高品质的视频的显示。 解决方案:检测电路4从A / D转换器电路1,2,3的R,G,B数字数据检测一个屏幕的发光像素比,并将该比率输入到控制脉冲电源5作为 信号Vcont 根据发光像素比,电源5降低了低发光像素比的图像的子场复位电压,并提高了高比率的图像的子场复位电压。 信号处理电路7对来自A / D转换器电路1,2,3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到来自 来自电源6的处理电路7并将其转换为用于使显示面板9转动的电压。因此,即使放电单元之间的间隔小,也可以在黑屏中出现亮点等 可以可靠地实现在明亮屏幕中的防止和复位放电,并且可以稳定地驱动面板9而不会发生故障。 版权所有(C)2008,JPO&INPIT
    • 9. 发明专利
    • Drive circuit of plasma display panel
    • 等离子显示面板的驱动电路
    • JP2007241115A
    • 2007-09-20
    • JP2006066445
    • 2006-03-10
    • Advanced Pdp Development CorpFujitsu LtdHitachi 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
    • OSAWA MICHITAKASAKANO JUNICHIAWAMOTO KENJISHINOHE KOJI
    • G09G3/20G09G3/288G09G3/291G09G3/293G09G3/294G09G3/296G09G3/298
    • PROBLEM TO BE SOLVED: To provide a drive circuit of a PDP capable of driving the PDP with high efficiency without destructing a semiconductor element of a scan drive circuit constituting a drive circuit of the PDP.
      SOLUTION: A collector terminal of an IGMT 25 is connected to a power supply Vcc line and an emitter terminal of the IGBT 25 is connected to an output terminal of an output circuit 21, respectively. A cathode terminal (K) of a diode 29 is connected to a line on the side of a power supply Vcc and an anode terminal of the diode 29 is connected to the output terminal, respectively. A collector terminal of an IGBT 27 is connected to an output terminal and an emitter terminal of the IGBT 27 is connected to a common sustain circuit through a virtual ground line, respectively. A cathode terminal of a diode 31 is connected to the output terminal and an anode terminal of the diode 31 is connected to the common sustain circuit 1 through the virtual ground line, respectively. A rectangular wave pulse is output to the corresponding scan electrode from the output terminal from the common sustain circuit 1 through the virtual ground line and the diode 31.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供能够高效率驱动PDP的PDP的驱动电路,而不会破坏构成PDP的驱动电路的扫描驱动电路的半导体元件。 解决方案:IGMT 25的集电极端子连接到电源Vcc线,并且IGBT 25的发射极端子分别连接到输出电路21的输出端子。 二极管29的阴极端子(K)连接到电源Vcc侧的线路,二极管29的阳极端子分别连接到输出端子。 IGBT27的集电极端子连接到输出端子,并且IGBT27的发射极端子分别通过虚拟接地线连接到公共维持电路。 二极管31的阴极端子连接到输出端子,二极管31的阳极端子分别通过虚拟接地线连接到公共维持电路1。 通过虚拟接地线和二极管31,从公共维持电路1的输出端子向对应的扫描电极输出矩形波脉冲。(C)2007,JPO&INPIT