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1. 发明专利

JP2008170553A Plasma display panel driving method and plasma display device 审中-公开
标题翻译：等离子显示面板驱动方法和等离子体显示装置
公开(公告)号：JP2008170553A
公开(公告)日：2008-07-24
申请号：JP2007001685
申请日：2007-01-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKANO AKIRA , TAJIMA MASAYA , NOGUCHI TAIJI
IPC分类号： G09G3/288 , G09G3/20 , G09G3/291 , G09G3/298
CPC分类号： G09G3/204 , G09G3/294 , G09G3/299 , G09G2310/0218 , G09G2310/0224 , G09G2320/0247
摘要： PROBLEM TO BE SOLVED: To provide a technique capable of mainly preventing an occurrence of a line flicker (particularly the line flicker in an interlace display) relating to a PDP device.
SOLUTION: In the PDP device, in conventional fields respectively (Fo, Fe), both of odd and even display line groups are continuously driven as a novel field configuration (F') in a first half (F-A)-a second half (F-B) (TLo, TLe), by the control operation in a control circuit, on the basis of the same data (the data of the odd display lines).
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够主要防止与PDP设备相关的线闪烁（特别是隔行扫描中的线闪烁）的发生的技术。解决方案：在PDP器件中，在传统领域（Fo，Fe）中，奇数和偶数显示线组都是在前半部分（FA）中连续驱动为新的场配置（F'） - 第二根据相同的数据（奇数显示行的数据），通过控制电路中的控制操作来控制一半（FB）（TLo，TLe）。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2009042391A Plasma display apparatus and method for driving plasma display panel 审中-公开
标题翻译：等离子体显示装置和驱动等离子体显示面板的方法
公开(公告)号：JP2009042391A
公开(公告)日：2009-02-26
申请号：JP2007205710
申请日：2007-08-07
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKEUCHI MASANORI , HASHIMOTO YASUNOBU , OKI HIDEAKI , KIMURA YUICHIRO , ITOKAWA NAOKI , NOGUCHI TAIJI
IPC分类号： G09G3/288 , G09G3/20 , G09G3/28 , G09G3/291 , G09G3/294 , G09G3/298 , G09G3/299 , H04N5/66
CPC分类号： G09G3/299 , G09G3/2044 , G09G3/2059 , G09G3/296 , G09G2310/0224 , G09G2310/0245 , G09G2320/0266 , G09G2320/041 , G09G2330/045 , G09G2360/16
摘要： PROBLEM TO BE SOLVED: To provide a plasma display apparatus and a method for driving a plasma display panel by which luminance is improved while preventing decrease in resolution.
SOLUTION: The plasma display apparatus displays an interlace signal and is equipped with: a maximum sustain pulse number counting means 61 configured to count the maximum number of sustain pulses associated with emission of light that can be made within one field, based on the vertical synchronization signal frequency of the input signal; a display load factor calculating means 50 configured to calculate a display load factor of the input signal in the one field; a target sustain pulse number determining means 62 configured to determine the target number of sustain pulses for the one field based on the display load factor calculated by the display load factor calculating means; and an emission luminance ratio determining means 63 configured to determine the emission luminance ratio of a sub-display line to a main-display line in the one field based on a relationship between the target number of sustain pulses determined by the target sustain pulse number determining means and the maximum number of sustain pulses.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供等离子体显示装置和驱动等离子体显示面板的方法，通过该等离子体显示装置提高亮度，同时防止分辨率的降低。解决方案：等离子体显示装置显示交错信号，并配备有：最大维持脉冲数计数装置61，其被配置为基于可在一个场内进行的与光发射相关联的最大维持脉冲数量，基于输入信号的垂直同步信号频率; 被配置为计算一个场中的输入信号的显示负载因子的显示负载率计算装置50; 目标维持脉冲数确定装置62，被配置为基于由显示负载因子计算装置计算出的显示负载因子确定一个场的目标维持脉冲数; 以及发光亮度比确定装置63，被配置为基于由目标维持脉冲数确定的目标维持脉冲数之间的关系确定一个场中的副显示线与主显示行的发光亮度比平均值和最大维持脉冲数。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JPH08331576A CONVERGENCE SYSTEM AND DISPLAY DEVICE USING SAME 失效
公开(公告)号：JPH08331576A
公开(公告)日：1996-12-13
申请号：JP13810895
申请日：1995-06-05
申请人： HITACHI LTD , HITACHI VIDEO IND INF SYST INC
发明人： KIMURA YUICHIRO , NOGUCHI TAIJI , MATSUMI KUNINORI
IPC分类号： H04N9/28 , G09G1/00 , G09G5/00 , H04N17/04
摘要： PURPOSE: To correct convergence shift of an entire image with high accuracy by using a photodetecting element to catch luminous intensity as a voltage. CONSTITUTION: A pattern signal generating means 12 generates a pattern signal for automatic adjustment suitable for detecting convergence by photodetectors 9a-9h by the instruction of a arithmetic processing means 13. A photodetection circuit 14 detects light made incident onto the photodetectors 9a-9h, from which a signal of a prescribed voltage level is generated, it is given to an A/D converter means 10, in which the voltage is converted into a digital signal and it is fed to the arithmetic processing means 13. According to the arithmetic processing by the arithmetic processing means 13, whether or not adjustment pattern indication is in matching is decided by the photodetectors 9a-9h. When the adjustment pattern indication is not in matching, after correction data are converted, the processing above is again repeated. Convergence shift is automatically corrected by repeating the processing till the indication of the adjustment pattern is in matching for all the photodetectors 9a-9h.

4. 发明专利

JPH089399A CONVERGENCE DEVIATION CORRECTION SYSTEM AND DISPLAY DEVICE USING THE SAME 失效
公开(公告)号：JPH089399A
公开(公告)日：1996-01-12
申请号：JP13305794
申请日：1994-06-15
申请人： HITACHI LTD , HITACHI VIDEO IND INF SYST INC
发明人： KIMURA YUICHIRO , NOGUCHI TAIJI , MATSUMI KUNINORI , KAIZAKI KAZUHIRO , ISHINO CHIHARU
IPC分类号： H04N9/28
摘要： PURPOSE:To easily detect that an adjustment pattern and a photodetector are matched with each other with only one photodetector and to simplify the constitution by projecting the adjustment pattern with the luminance changed stepwisely and detecting the edge of the adjustment pattern through the output voltage level of the photodetector. CONSTITUTION:When the instruction of convergence adjustment start is supplied to this display device by using a keyboard 11, pattern signals for automatic adjustment suitable for convergence detection on the photodetectors 9a to 9h are generated from a pattern signal generation means 12 by the instruction of an arithmetic processing means 13. Then, the output of the respective photodetectors 9a to 9h is converted into a digital amount and the result is sent to the means 13. Then, whether or not adjustment pattern display is coincident on the light reception parts of the photodetectors 9a to 9h is judged by the arithmetic processing of the means 13. When it is not coincident, after the correction data of the noncoincident light reception part are changed, the processing is repeated.

5. 发明专利

JPH07336701A CONVERGENCE DEVIATION CORRECTION SYSTEM AND DISPLAY DEVICE USING IT 失效
公开(公告)号：JPH07336701A
公开(公告)日：1995-12-22
申请号：JP12727094
申请日：1994-06-09
申请人： HITACHI LTD , HITACHI VIDEO ENG
发明人： MATSUMI KUNINORI , NOGUCHI TAIJI , KIMURA YUICHIRO , OSAWA MICHITAKA , TAKEMOTO AKITO , KUBOTA SADAO
IPC分类号： H04N9/28 , G09G1/00 , H04N17/04
摘要： PURPOSE:To adjust convergence deviation in the center of a screen with high accuracy in the convergence deviation correction system in which a photodetector is arranged at an outer circumferential part of a screen and to adjust the convergence deviation with high accuracy even when a fault takes place in the photodetector. CONSTITUTION:The luminous quantity on the outer circumferential part of the screen is adjusted automatically by using photo detectors (9a-9h) and the luminous quantity in the center of the screen is adjusted manually by the adjustment personnel with a key board (11). Furthermore, the system is provided with a fault detection means detecting a fault of the photo detectors, and when a fault of the photodetectors is detected, automatic adjustment is interrupted and manual adjustment is implemented. Since the adjustment in the middle of the screen in which mis-convergence cannot be detected by the photodetector is conducted, the entire screen is adjusted with high accuracy. Even when a fault takes place in the photo detectors, the convergence is adjusted with high accuracy by using the manual adjustment.

6. 发明专利

JPH06327037A PICTURE SIGNAL GENERATING CIRCUIT 失效
公开(公告)号：JPH06327037A
公开(公告)日：1994-11-25
申请号：JP11281193
申请日：1993-05-14
申请人： HITACHI LTD , HITACHI VIDEO & INF SYST
发明人： MATSUMI KUNINORI , KIMURA YUICHIRO , NOGUCHI TAIJI , OSAWA MICHITAKA
IPC分类号： G09G5/00 , H04N9/28 , H04N17/00
摘要： PURPOSE:To reduce the capacity of a picture memory used for the generation of a vertical line picture whose width is thin by providing a latch circuit which detects the continuity of the output data of the picture memory and an AND circuit. CONSTITUTION:When the output of a picture memory 2 is continued for more than 2 clocks, and turned to a logic 1, the input and output of a latch circuit 3 are simultaneously turned to the logic 1. Then, the output of an AND circuit 7 is turned to 1, and the output of an OR circuit 5 is turned to 1. On the contrary, when the output of the picture memory 2 is turned to 1 only for one clock, the input and output of the latch circuit 3 can not be simultaneously turned to 1. Therefore, the output of the AND circuit 7 is 0 as it is, and the output of the latch circuit 3 is turned to 1. The output of the latch circuit 3 is inputted to a pulse width control circuit 4, and a dot output whose pulse width is narrow is inputted to an OR circuit 6. At that time, the output of the AND circuit 7 is 0, and the dot is displayed on a display tube 9. Thus, a display pattern whose horizontal width is narrow can be generated by the memory whose capacity is reduced by the pulse width control.

7. 发明专利

JP2000112432A PLASMA DISPLAY DEVICE AND ITS CONTROLLING METHOD 失效
公开(公告)号：JP2000112432A
公开(公告)日：2000-04-21
申请号：JP27760598
申请日：1998-09-30
申请人： HITACHI LTD , HITACHI VIDEO & INF SYST
发明人： SUZUKI AKIHIRO , OKI HIDEAKI , KIMURA YUICHIRO , UMEHARA KUNIO , NOGUCHI TAIJI
IPC分类号： G09G3/20 , G09G3/28 , G09G3/288 , G09G3/291 , G09G3/294 , G09G3/296
摘要： PROBLEM TO BE SOLVED: To provide a plasma display device and its controlling method in which the power consumption can be controlled while preventing the occurrence of damages on an address driver and a display panel caused by an excessive supply of electric power. SOLUTION: The plasma display device 1 is provided with a video interface 2, a data processing section 3, a drive controlling section 4, an MPU 5, a Y driver 6, an address driver 7, an X driver 8, a display panel 9, power detecting sections 12, 14 and 15 and an internal power supply 13. The MPU 5 executes the control of the power consumption by controlling the number of sustain pulses and the number of display bits in accordance with the power consumption of the entire device, the power consumption of the address driver and the sustain power for the sustain discharge detected by the power detecting sections 12, 14 and 15, respectively.

8. 发明专利

JPH08275187A DIGITAL CONVERGENCE CORRECTION DEVICE AND DISPLAY DEVICE USING THE SAME 失效
公开(公告)号：JPH08275187A
公开(公告)日：1996-10-18
申请号：JP9590995
申请日：1995-03-30
申请人： HITACHI LTD , HITACHI VIDEO IND INF SYST INC
发明人： MATSUMI KUNINORI , NOGUCHI TAIJI , HARUNA FUMIO , KIMURA YUICHIRO , WATANABE TOSHIMITSU
IPC分类号： H04N9/28 , G09G1/00 , G09G1/02 , G09G1/14
摘要： PURPOSE: To suppress defective convergence at mode changeover by outputting a convergence correction waveform in a short time. CONSTITUTION: The display device provided with the digital convergence correction device is provided with a high speed interpolation computing element 22 with low arithmetic accuracy at a high speed and a high accuracy interpolation computing element 23 with high arithmetic accuracy at a low speed as interpolation devices in the correction device and also with a video signal erasure switch 25 to erase a video signal at least during high speed interpolation arithmetic operation. The high speed interpolation computing element 22 displays a video image with less convergence defect in a short time. Then the accuracy is improved by the high accuracy interpolation computing element 23. Furthermore, a video image with disturbed convergence is not displayed.

9. 发明专利

JPH07184222A CONVERGENCE CORRECTION SYSTEM AND DISPLAY DEVICE USING IT 失效
公开(公告)号：JPH07184222A
公开(公告)日：1995-07-21
申请号：JP32846493
申请日：1993-12-24
申请人： HITACHI LTD , HITACHI VIDEO & INF SYST
发明人： NOGUCHI TAIJI , KIMURA YUICHIRO , MATSUMI KUNINORI
IPC分类号： H04N9/28
摘要： PURPOSE:To correct deviation in the convergence on the entire screen with simple configuration and high accuracy by adjusting convergence for 4 light receiving sections of plural photodetectors arranged around the screen so as to obtain a correction quantity. CONSTITUTION:Plural numbers of photodetectors 13a-13h are arranged at the outside of a display screen of a projection display device incorporating a digital convergence correction device and a function of adjusting data in a frame memory 3 so as to make a pattern of light receiving sections of the photodetectors 13a-13h coincident with an adjustment pattern. Furthermore, adjustment data resulting from the adjustment of convergence for the entire display screen and adjustment data by the adjustment function before the occurrence of convergence are stored in advance. When any convergence deviation takes place, the adjustment function is used again for the adjustment, the adjustment data in this case and the adjustment data stored in advance are calculated to obtain a corresponding correction quantity to the pattern of the light receiving section and the correction quantity for the entire screen is obtained through interpolation calculation from the correction quantity to correct convergence deviation for the entire display screen.

10. 发明专利

JPH07123428A DIGITAL CONVERGENCE CORRECTOR AND IMAGE DISPLAY DEVICE PROVIDED WITH THE SAME 失效
公开(公告)号：JPH07123428A
公开(公告)日：1995-05-12
申请号：JP26692393
申请日：1993-10-26
申请人： HITACHI LTD , HITACHI VIDEO & INF SYST
发明人： KIMURA YUICHIRO , NOGUCHI TAIJI , MATSUMI KUNINORI
IPC分类号： H04N9/28 , G09G1/00 , G09G1/04
摘要： PURPOSE:To suppress the increase of memory capacity without complicating the configuration and without damaging the quality of displayed images at the upper and lower parts of a screen by defining a prescribed alternative address as an image memory read address in a picture display outside area. CONSTITUTION:When the number of scanning lines is more than the address of an image memory 1 and the maximum lines are reached, a row address counter 2 stops counting and continuously outputs a maximum row address by using a row address counter stop circuit 4. Then, a downside picture display outside area (SP) corresponding to a lower edge V of this picture raster is read out. Similarly, the upside SP is also read out by the alternative address corresponding to an upper edge V of the picture raster, picture quality can be prevented without extending the memory capacity from being degraded by distorting the scanning lines, and the capacity extension of the image memory can be suppressed without complicating the configuration and without damaging the quality of displayed pictures at the upper and lower parts of the screen.

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