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1. 发明专利

DE60143976D1 Anzeigevorrichtung 未知
公开(公告)号：DE60143976D1
公开(公告)日：2011-03-10
申请号：DE60143976
申请日：2001-08-24
申请人： HITACHI PLASMA DISPLAY LTD
发明人： KOJIMA AYAHITO , KAMEYAMA SHIGEKI , KURIYAMA HIROHITO , KANAZAWA YOSHIKAZU , UEDA TOSHIO
IPC分类号： G09G3/20 , G09G3/28 , G09G3/288 , G09G3/291 , G09G3/294

2. 发明专利

DE60136425D1 未知
公开(公告)号：DE60136425D1
公开(公告)日：2008-12-18
申请号：DE60136425
申请日：2001-08-24
申请人： HITACHI PLASMA DISPLAY LTD
发明人： KOJIMA AYAHITO , KAMEYAMA SHIGEKI , KURIYAMA HIROHITO , KANAZAWA YOSHIKAZU , UEDA TOSHIO
IPC分类号： G09G3/20 , G09G3/28 , G09G3/288 , G09G3/291 , G09G3/294
摘要： A plasma display panel (PDP) provided with means for avoiding thermal destruction and burn-in. If some or all of the screen is displaying a very bright image, either continuously or periodically, and the total light emission pulse number is judged to be sufficiently large that it may cause thermal destruction and burn in of the screen, the total light emission pulse number (sustain frequency) is reduced to prevent this.

3. 发明专利

JP2006234983A Error diffusion processing circuit and method, and plasma display device 审中-公开
标题翻译：误差扩展处理电路和方法以及等离子体显示装置
公开(公告)号：JP2006234983A
公开(公告)日：2006-09-07
申请号：JP2005046200
申请日：2005-02-22
申请人： Fujitsu Hitachi Plasma Display Ltd , 富士通日立プラズマディスプレイ株式会社
发明人： YAMAMOTO AKIRA , TAJIMA MASAYA , UEDA TOSHIO
IPC分类号： G09G3/288 , G09G3/20 , G09G3/28 , G09G3/296 , G09G3/298 , G09G5/00 , H04N1/405
CPC分类号： G09G3/2066 , G09G3/298 , G09G2310/0232 , G09G2320/0673
摘要： PROBLEM TO BE SOLVED: To provide an error diffusion processing circuit for achieving improved display quality.
SOLUTION: The error diffusion processing circuit includes: a separation part (401) which separates digital pixel data of an object pixel into upper bits and lower bits and takes the lower bits as error data; multiplication circuits (407 to 410) which multiply transmission error data of a plurality of adjacent pixels by adjacent pixel weighting coefficients and outputs weighted transmission error data; a first addition circuit (411) which performs addition on the basis of the error data of the object pixel and the weighted transmission error data of adjacent pixels and outputs an addition value and a carry value; a second addition circuit (402) which adds upper bit pixel data of the object pixel and the carry value together and outputs output pixel data; and a correction circuit (800) which corrects transmission error data of an adjacent pixel into error data of the object pixel or data resulting from arithmetic processing of the error data in the case that the transmission error data of the adjacent pixel is 0, and outputss a correction result to multiplication circuits.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于实现改进的显示质量的误差扩散处理电路。解决方案：误差扩散处理电路包括：分离部分（401），其将目标像素的数字像素数据分离成高位和低位，并将较低位作为错误数据; 乘法电路（407〜410），其乘以相邻像素加权系数的多个相邻像素的传输误差数据，并输出加权的传输错误数据; 第一加法电路（411），其基于对象像素的误差数据和相邻像素的加权的传输误差数据执行相加，并输出相加值和进位值; 第二加法电路（402），其将对象像素的高位像素数据和进位值相加在一起，并输出输出像素数据; 在相邻像素的传输错误数据为0的情况下，将相邻像素的传输错误数据校正为对象像素的误差数据或由错误数据的算术处理产生的数据的校正电路（800）乘法电路的校正结果。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2009064027A Display method of plasma display apparatus 有权
标题翻译：等离子体显示装置的显示方法
公开(公告)号：JP2009064027A
公开(公告)日：2009-03-26
申请号：JP2008263609
申请日：2008-10-10
申请人： Hitachi Plasma Display Ltd , 日立プラズマディスプレイ株式会社
发明人： TAKEUCHI MASANORI , UEDA TOSHIO , ASAO SHIGEHARU
IPC分类号： G09G3/294 , G09G3/20 , G09G3/28 , G09G3/288 , G09G3/291 , G09G3/296 , G09G3/298
摘要： PROBLEM TO BE SOLVED: To provide a plasma display apparatus in which degradation in image quality such as display missing points does not occur, even if peak luminance is increased.
SOLUTION: The plasma display apparatus which performs graded display by using a subfield method includes: a plasma display panel 11 including a plurality of scanning electrodes and sustain electrodes extending in the same direction and alternately adjacently arranged, and a plurality of address electrodes extending in a direction orthogonal to the plurality of the scanning electrodes and the sustain electrodes; sustain pulse period change means 25, 26 for changing the sustain pulse periods for every subfield according to the detected display load ratio according to a detected display load ratio; and adaptive pulse number change means 27, 28 for calculating the total amount of variations in time summing the fluctuation time generated by changing the sustain pulse periods of every one display subfield, and increasing/decreasing the number of the sustain pulses of each subfield according to the total amount of variations in time.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：即使提高峰值亮度，也提供了不发生诸如显示缺失点的图像质量劣化的等离子体显示装置。解决方案：通过使用子场法进行分级显示的等离子体显示装置包括：等离子体显示面板11，其包括沿相同方向延伸并交替相邻布置的多个扫描电极和维持电极，以及多个寻址电极在与所述多个扫描电极和所述维持电极正交的方向上延伸; 维持脉冲期间变更单元25,26，根据检测到的显示负载比，根据检测到的显示负载比，改变每个子场的维持脉冲周期; 以及自适应脉冲数变更单元27,28，用于计算通过改变每个显示子场的维持脉冲周期而产生的波动时间的时间相加的总和变化量，以及根据每个子场的维持脉冲数增加/减少时间变化的总量。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2008076668A Plasma display device 审中-公开
标题翻译：等离子体显示设备
公开(公告)号：JP2008076668A
公开(公告)日：2008-04-03
申请号：JP2006254846
申请日：2006-09-20
申请人： Fujitsu Hitachi Plasma Display Ltd , 富士通日立プラズマディスプレイ株式会社
发明人： IKEDA DAIKI , UEDA TOSHIO
IPC分类号： G09G3/292 , G09G3/20 , G09G3/288 , G09G3/291 , G09G3/293 , G09G3/294 , G09G3/296 , G09G3/298
CPC分类号： G09G3/296 , H01J11/12 , H01J11/46
摘要： PROBLEM TO BE SOLVED: To provide a plasma display device which can be used for a plurality of systems wherein address electrodes are led out of a plasma display panel. SOLUTION: The plasma display device includes a plasma display panel having a plurality of address electrodes for selecting display cells to illuminate, data generating circuits (2001, 2002a, and 2002b) which generate and output a plurality of address data for applying a voltage to the plurality of address electrodes, a plurality of output ports (AD_A to AD_L) for outputting the plurality of address data, and a selector (2003) switching connections between outputs of the plurality of address data generated by the data generating circuit and the plurality of output ports. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种可用于多个系统的等离子体显示装置，其中寻址电极从等离子体显示面板引出。解决方案：等离子体显示装置包括具有多个用于选择显示单元进行照明的寻址电极的等离子体显示面板，产生并输出多个地址数据的数据产生电路（2001,2002a和2002b）电压到多个寻址电极，用于输出多个地址数据的多个输出端口（AD_A至AD_L），以及选择器（2003），用于切换由数据产生电路产生的多个地址数据的输出和多个输出端口。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2005215194A Plasma display device 审中-公开
标题翻译：等离子体显示设备
公开(公告)号：JP2005215194A
公开(公告)日：2005-08-11
申请号：JP2004020192
申请日：2004-01-28
申请人： Fujitsu Hitachi Plasma Display Ltd , 富士通日立プラズマディスプレイ株式会社
发明人： TAKAGI AKIHIRO , KISHI TOMOKATSU , TOMIO SHIGETOSHI , UEDA TOSHIO , NOGUCHI TAIJI , IKEDA DAIKI
IPC分类号： G09G3/20 , G09G3/288 , G09G3/291 , G09G3/294 , G09G3/298 , G09G3/28
摘要： PROBLEM TO BE SOLVED: To provide a plasma display device capable of alleviating loads when the loads are concentrated on some driver ICs of a plurality of driver ICs.
SOLUTION: The plasma display device having the plurality of driver ICs (112-1 to 112-n) driven to display each of different display areas in a plasma display panel is provided. The plasma display device detects parameters for each driver IC and sets the number of maintenance discharge pulses for display based on the largest parameter of the plurality of driver ICs.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种当负载集中在多个驱动器IC的一些驱动器IC上时能够减轻负载的等离子体显示装置。提供了具有驱动以在等离子体显示面板中显示各个不同显示区域的多个驱动器IC（112-1至112-n）的等离子体显示装置。等离子体显示装置检测每个驱动器IC的参数，并且基于多个驱动器IC的最大参数设置用于显示的维护放电脉冲的数量。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2003337568A Plasma display device 有权
标题翻译：等离子体显示设备
公开(公告)号：JP2003337568A
公开(公告)日：2003-11-28
申请号：JP2002209950
申请日：2002-07-18
申请人： Fujitsu Hitachi Plasma Display Ltd , 富士通日立プラズマディスプレイ株式会社
发明人： TAKEUCHI MASANORI , UEDA TOSHIO , ASAO SHIGEHARU
IPC分类号： H04N5/66 , G09G3/20 , G09G3/28 , G09G3/288 , G09G3/291 , G09G3/294 , G09G3/296 , G09G3/298
CPC分类号： G09G3/2022 , G09G3/2946 , G09G2310/065 , G09G2360/16
摘要： PROBLEM TO BE SOLVED: To provide a plasma display device in which deterioration in picture quality such as display defects or the like does not occur even though peak luminance is increased.
SOLUTION: The plasma display device conducts gray scale display using a subfield method. The device is provided with: a plasma display panel 11 which is provided with a plurality of scanning and sustain electrodes that are extended along the same direction and alternatively arranged adjacent to each other, and a plurality of address electrodes that are extended along the direction orthogonal to the plurality of the scanning and the sustain electrodes; sustain pulse period changing means 25 and 26 which detect a display load factor for every subfield and change the sustain pulse period for every subfield in accordance with the detected display load factor; and adaptive sustain pulse number changing means 27 and 28 which compute a total amount of variations in time that is obtained by summing the variations in time generated by changing the sustain pulse period within one display field, and increase or decrease the number of sustain pulses in each subfield in accordance with the total amount of variations in time.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供即使峰值亮度增加也不会发生诸如显示缺陷等的图像质量劣化的等离子体显示装置。解决方案：等离子体显示装置使用子场方法进行灰度显示。该装置具有：等离子体显示面板11，其具有沿着相同方向延伸并且彼此相邻布置的多个扫描和维持电极;以及沿正交方向延伸的多个寻址电极对多个扫描和维持电极; 维持脉冲期间变更单元25,26，根据检测到的显示负载因子，检测每个子场的显示负荷因子，并改变每个子场的维持脉冲周期; 以及自适应维持脉冲数改变装置27和28，其计算通过对通过改变一个显示区域内的维持脉冲周期所产生的时间的变化进行求和而获得的时间变化的总和量，并且增加或减少维持脉冲数量的维持脉冲数每个子场按照总时间量的变化。版权所有（C）2004，JPO

8. 发明专利

JP2003280571A Display device and its driving method 有权
标题翻译：显示设备及其驱动方法
公开(公告)号：JP2003280571A
公开(公告)日：2003-10-02
申请号：JP2002078791
申请日：2002-03-20
申请人： Fujitsu Hitachi Plasma Display Ltd , 富士通日立プラズマディスプレイ株式会社
发明人： OE TAKAYUKI , UEDA TOSHIO
IPC分类号： H04N5/66 , G09G3/20 , G09G3/291 , G09G3/294 , G09G3/28
CPC分类号： G09G3/2022 , G09G3/2946 , G09G2360/16
摘要： PROBLEM TO BE SOLVED: To solve the problem that, in a sustenance discharge period, a sustaining discharge voltage is lowered as sustenance discharge progress to the latter half of the period after sustenance discharge are repeated and sustenance discharge become incomplete. SOLUTION: In the driving method of a display device for performing light emission by impressing a sustaining discharge pulse on electrodes repeatedly, the display device is constituted so as to change the pulse width of the sustaining discharge pulse in one sub-field. COPYRIGHT: (C)2004,JPO
摘要翻译：解决的问题为了解决在维持放电期间，由于维持放电进行到维持放电后的后半期，维持放电变得不完整，所以在维持放电期间，维持放电电压降低。解决方案：在通过重复地在电极上施加持续放电脉冲来执行发光的显示装置的驱动方法中，显示装置被构造成在一个子场中改变维持放电脉冲的脉冲宽度。版权所有（C）2004，JPO

9. 发明专利

JP2010169902A Video display 有权
标题翻译：视频显示
公开(公告)号：JP2010169902A
公开(公告)日：2010-08-05
申请号：JP2009012485
申请日：2009-01-23
申请人： Hitachi Plasma Display Ltd , 日立プラズマディスプレイ株式会社
发明人： NISHIMAKI NORIYUKI , UEDA TOSHIO
IPC分类号： G09G3/20 , G09G3/28 , G09G3/291 , H04N5/66
CPC分类号： H04N5/63 , G09G3/2003 , G09G3/2007 , G09G3/22 , G09G3/28 , G09G2310/0232 , G09G2320/0271 , G09G2330/021 , G09G2360/16
摘要： PROBLEM TO BE SOLVED: To solve the problem that, in a display apparatus such as PDP, for obtaining a bright video while an increase in power consumption is suppressed, the luminance level of a specific area of a display panel is decreased according to the average luminance level of the entire display panel, however, in the case the display image includes low luminance areas and high luminance areas intermingled with each other, even the luminance of a low luminance area is reduced to cause gradation crush.
SOLUTION: The average luminance level of each area is detected, and based on the level of the average luminance level of each area and the luminance level of an input image, a shading process is controlled for each area. If the luminance level of the input image signal is greater than a predetermined threshold as a result of this control, the shading process is performed. If it is smaller than the predetermined threshold, the shading process is stopped.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题为了解决在诸如PDP的显示装置中，为了在抑制功耗增加而获得亮视频的情况下，显示面板的特定区域的亮度水平根据然而，在显示图像包括彼此混合的低亮度区域和高亮度区域的情况下，即使降低亮度区域的亮度也降低了渐变粉碎的情况。解决方案：检测每个区域的平均亮度水平，并且基于每个区域的平均亮度水平和输入图像的亮度水平，对每个区域控制阴影处理。作为该控制的结果，如果输入图像信号的亮度水平大于预定阈值，则执行阴影处理。如果小于预定阈值，则停止阴影处理。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2004086030A Display apparatus and driving method therefor 有权
公开(公告)号：JP2004086030A
公开(公告)日：2004-03-18
申请号：JP2002249165
申请日：2002-08-28
申请人： Fujitsu Hitachi Plasma Display Ltd , 富士通日立プラズマディスプレイ株式会社
发明人： SANO YUJI , UEDA TOSHIO
IPC分类号： H04N5/66 , G09G3/20 , G09G3/28 , G09G3/288 , G09G3/291 , G09G3/294 , G09G3/296 , G09G3/298
摘要： PROBLEM TO BE SOLVED: To realize a driving method for a digital display apparatus, which reduces degradation of display gradation performance, which is caused by an influence of luminance adjustment, to secure a dynamic range up to its maximum.
SOLUTION: A display apparatus is provided with a display device 21 which is driven on the basis of a digital video signal, a luminance adjuster 7 which sets a display minimum luminance level, and a driving control part 30 which controls the display device. The driving control part changes the weight of a luminance level corresponding to the LSB of the digital video signal in accordance with the minimum luminance level and fixedly holds the weight of a luminance level corresponding to the MSB or a maximum luminance level and determines weights of respective bits of the digital video signal so as to keep weights of the bits in such a relation that they are considered to be in a ratio of equality, and controls display in accordance with determined weights of the bits.
COPYRIGHT: (C)2004,JPO

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