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21. 发明专利

JP2005114792A Image display device 有权
标题翻译：图像显示设备
公开(公告)号：JP2005114792A
公开(公告)日：2005-04-28
申请号：JP2003345316
申请日：2003-10-03
申请人： Hitachi Displays Ltd , Hitachi Ltd , 株式会社日立ディスプレイズ , 株式会社日立製作所
发明人： AKIMOTO HAJIME , KASAI SHIGEHIKO , MIYAMOTO MITSUHIDE
IPC分类号： G02F1/1345 , G09F9/00 , G09G3/10 , G09G3/20 , G09G3/30 , G09G3/32 , G09G3/36 , G09G5/00 , H01L51/50 , H05B33/14
CPC分类号： G09G3/3688 , G09G3/2096 , G09G2300/0408 , G09G2310/027
摘要： PROBLEM TO BE SOLVED: To provide an image display device which has peripheral circuits, starting with a DA converting circuit, integrated on a glass substrate while realizing high-definition image display. SOLUTION: The image display device has a display region 100 comprising a plurality of pixels 1 and serial data and instructions inputted from signal lines s1 and s2 are inputted to a buffer circuit 10 through an interface circuit 14 and the DA converting circuit 11. The buffer circuit output is inputted to a horizontal shift register 13 to perform scan writing to signal lines 2 in sequence. A vertical shift register 8 switches ON pixel switches 4 of pixels to be written through gate lines 3, so that the pixels show optical characteristics corresponding to a written image signal. In such a case, a buffer circuit formed of single crystal Si and an electric power generating circuit 32 for the buffer circuit are provided on an FPC and other circuits formed of polycrystal Si are provided on the glass substrate 6. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种具有外围电路的图像显示装置，从DA转换电路开始，集成在玻璃基板上，同时实现高清晰度图像显示。解决方案：图像显示装置具有包括多个像素1的显示区域100，并且从信号线s1和s2输入的串行数据和指令通过接口电路14和DA转换电路11输入到缓冲电路10 将缓冲电路输出输入到水平移位寄存器13，依次对信号线2进行扫描写入。垂直移位寄存器8将要通过栅极线3写入的像素的像素开关4切换，使得像素显示对应于写入的图像信号的光学特性。在这种情况下，由FPC构成的缓冲电路和用于缓冲电路的发电电路32设置在FPC上，并且由多晶Si形成的其他电路设置在玻璃基板6上。版权所有： C）2005，JPO＆NCIPI

22. 发明专利

JP2004341263A Method and device for self-luminous element display 审中-公开
公开(公告)号：JP2004341263A
公开(公告)日：2004-12-02
申请号：JP2003138089
申请日：2003-05-16
申请人： Hitachi Displays Ltd , Hitachi Ltd , 株式会社日立ディスプレイズ , 株式会社日立製作所
发明人： KASAI SHIGEHIKO , AWAKURA HIROMOTO , SATO TOSHIHIRO , AKIMOTO HAJIME
IPC分类号： H01L51/50 , G09G3/20 , G09G3/30 , H05B33/14
摘要： PROBLEM TO BE SOLVED: To eliminate a blurred moving picture and to control an illumination period regardless of the timing of input display data in a pixel control system for self-luminous element display. SOLUTION: The self-luminous element display 20 having a plurality of self-luminous elements arranged in matrix, a driving voltage generating means 10 of generating a driving voltage for driving the self-luminous elements, a data line divisionally switching means 12 of switching and outputting the driving voltage and a triangular wave signal to data lines, a write scanning line driving means 14 of selecting self-luminous elements to be driven, and a pixel illumination control line driving means 18 of controlling the illumination timing of pixels are provided for each of groups of odd-numbered pixels and even-numbered pixels. COPYRIGHT: (C)2005,JPO&NCIPI

23. 发明专利

JP2003330421A Display device and display control method 有权
标题翻译：显示设备和显示控制方法
公开(公告)号：JP2003330421A
公开(公告)日：2003-11-19
申请号：JP2002142363
申请日：2002-05-17
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： AWAKURA HIROMOTO , KASAI SHIGEHIKO , FURUHASHI TSUTOMU , SATO TOSHIHIRO
IPC分类号： H04N5/70 , G09G3/20 , G09G3/30 , H01L51/50
摘要： PROBLEM TO BE SOLVED: To provide a display device and its control method for suppressing a rise in luminance caused when a low gray scale (black, for example) is displayed while increasing peak luminance for high gray scale (white, for example). SOLUTION: The device is provided with: a display section 14 in which a plurality of pixels 141 that respectively include organic EL elements 24, switching TFTs21 and drive TFTs23 are arranged; a data signal driving circuit 10 which receives image data for every frame and outputs image signals based on the data; a scanning signal driving circuit 12 which outputs scanning signals to control the receiving timing of the image signals by the switching elements of the plurality of the pixels; and a current source (a light emitting power supply section 15 and a cathode potential controlling circuit 17) which outputs currents to be supplied to the light emitting sections through the driving elements of the plurality of the pixels. The current source modulates the output current values within the frame interval. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种显示装置及其控制方法，用于在增加高灰度级的峰值亮度（例如白色）的同时显示低灰度（例如黑色）时引起的亮度上升）。解决方案：该装置设置有：显示部14，其中分别包括有机EL元件24，开关TFT21和驱动TFT23的多个像素141; 数据信号驱动电路10，其接收每帧的图像数据，并且基于该数据输出图像信号; 扫描信号驱动电路12，其输出扫描信号，以通过多个像素的开关元件来控制图像信号的接收定时; 以及通过多个像素的驱动元件输出要提供给发光部的电流的电流源（发光电源部15和阴极电位控制电路17）。电流源调制帧间隔内的输出电流值。版权所有（C）2004，JPO

24. 发明专利

JP2003195837A METHOD AND DEVICE FOR MULTI-GRADATION DOT MATRIX DISPLAY 审中-公开
公开(公告)号：JP2003195837A
公开(公告)日：2003-07-09
申请号：JP2002278329
申请日：2002-09-25
申请人： HITACHI LTD
发明人： KASAI SHIGEHIKO , MANO HIROYUKI , NISHITANI SHIGEYUKI , TAKITA ISAO , TAKAHASHI KOJI
IPC分类号： G09G3/36 , G02F1/133 , G09G3/20 , H04N5/66
摘要： PROBLEM TO BE SOLVED: To provide a multi-gradation display which enables balance of gradations to equally be viewed with the human's eye by taking optical characteristics of gradation display into consideration. SOLUTION: The dot matrix display having pixel parts arrayed on a matrix, display data having gradation display information, and a data conversion part which converts the display data into voltages to be applied to the pixel parts comprises a liquid crystal driving signal generating means which converts pieces of color display data 1 to 3 into liquid crystal display data 8, an 8-level data driver which selects and outputs one level among voltages of 8 levels according to the liquid crystal display data 8, and an 8-level liquid crystal applied voltage generating means 12 which generates an 8-level liquid crystal applied voltage 13 nearly equalizing color differences between adjacent gradations. Consequently, the color differences between adjacent gradations are made nearly equal to realize multi-gradation display which is equally viewed with the human's eye. COPYRIGHT: (C)2003,JPO

25. 发明专利

JP2002366082A DISPLAY DEVICE AND INFORMATION PROCESSOR 失效
公开(公告)号：JP2002366082A
公开(公告)日：2002-12-20
申请号：JP2001175057
申请日：2001-06-11
申请人： HITACHI LTD
发明人： KASAI SHIGEHIKO , FURUHASHI TSUTOMU , FUTAMI TOSHIO , KENMOTSU TOMOYUKI
IPC分类号： G06F3/153 , G09G3/20
摘要： PROBLEM TO BE SOLVED: To recover an error in data transfer from an information processor to a display device without leaving over the error as display in the display device. SOLUTION: A host device 100 transmits error checking information for checking an error to a display device 300 by adding it to packet data. The display control part 8 of the display device 300 receives the packet data and detects an error by using the error checking information. Moreover, when an error is detected, the display control part 8 outputs the request of the retransmission of the packet data to the host device 100. Then, the device 100 receives the request of the retransmission and retransmits the packet data in which the error is generated to the display control part 8.

26. 发明专利

JP2002175065A METHOD AND DEVICE FOR PACKET DISPLAY SIGNAL CONTROL 失效
公开(公告)号：JP2002175065A
公开(公告)日：2002-06-21
申请号：JP2000374388
申请日：2000-12-08
申请人： HITACHI LTD
发明人： KASAI SHIGEHIKO , FURUHASHI TSUTOMU , FUTAMI TOSHIO , KENMOTSU TOMOYUKI
IPC分类号： G02F1/133 , G09G5/00
摘要： PROBLEM TO BE SOLVED: To actualize stable low-voltage difference signal transfer by transferring display data, corresponding to very high definition without increasing the transfer rate by transferring the data, only when a display is updated and adding dummy data, when transfer is not performed. SOLUTION: A continuous signal control part 9 outputs display data, to which the dummy data are added when the display data are not transferred and transfers the data via a differential transfer transmission control part 13 and a differential transfer reception control part 16; and a display control part 22 receives the display data and temporarily stores them in an image storage part 28, the stored display data are read out of the image storage part 28 in the display timing of a liquid crystal panel 34, to generate a signal for liquid crystal display, and a dataline drive part 30 and a scanning line drive part 32 make the liquid crystal panel 34 display.

27. 发明专利

JP2000200076A MULTI-LEVEL DISPLAY DEVICE 失效
公开(公告)号：JP2000200076A
公开(公告)日：2000-07-18
申请号：JP2000048900
申请日：2000-02-21
申请人： HITACHI LTD
发明人： KASAI SHIGEHIKO , MANO HIROYUKI , NISHITANI HIROYUKI , TAKITA ISAO , TAKAHASHI KOJI
IPC分类号： G09G3/36 , G02F1/133 , G09G3/20 , H04N5/66
摘要： PROBLEM TO BE SOLVED: To provide a gradation display device on which an optical characteristics of the gradation display is considered and the gradation balance is seen even by human eyes. SOLUTION: This display device has a pixel part arranged on a matrix, a display data having gradation display information, and a data conversion part for converting the display data into a voltage to be applied to the pixel part, and is provided with a liquid crystal drive signal generating means 7 to convert each color display data 1-3 into liquid crystal display data 8, an 8-level data driver 14 for selectively outputting one level from voltages at eight levels according to the liquid crystal display data 8, and an 8-level liquid crystal applied voltage generating means 12 for generating such 8-level liquid crystal applied voltages 13 as color differences between adjoining gradations become even when measured in a 5 mm diameter circle at the center part. A gradation display seen even by human eyes can be realized by making the color differences between adjoining gradation almost even.

28. 发明专利

JPH1069254A DISPLAY CONTROLLER AND DISPLAY DEVICE 失效
公开(公告)号：JPH1069254A
公开(公告)日：1998-03-10
申请号：JP22386796
申请日：1996-08-26
申请人： HITACHI LTD , HITACHI VIDEO IND INF SYST INC
发明人： FURUHASHI TSUTOMU , HIGA ATSUHIRO , MAEDA TAKESHI , KURIHARA HIROSHI , KASAI SHIGEHIKO , KATO NOBUTAKA
IPC分类号： G02F1/133 , G09G3/36 , G09G5/18 , H04N5/66
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal display device capable of automatically discriminating various synchronizing signal systems, optimizing respective synchronizing signal systems to a liquid crystal module and normally displaying them. SOLUTION: A central processing circuit 111 monitors respectively a vertical synchronizing signal 102, a composite vertical synchronizing signal 104 outputted from a synchronizing separator circuit 110 and an SOG vertical synchronizing signal 106 outputted from the synchronizing separator circuit 110. Then, by revising contents of a selection signal 107 according to the presence of respective signals 102, 104, 106, the circuit 111 switches selectors 112, 113. When plural signals exist, one is selected according to beforehand decided priority order (separate system>composite system>SOG system). Thus, the synchronizing signals inputted at the time are outputted to a control signal generation circuit 114 through the selectors 112, 113. The control signal generation circuit 114 outputs a control signal 115 optimized matched with a liquid crystal module 116 to the liquid crystal module 116 to make perform a normal display.

29. 发明专利

JPH09288470A ANALOG INTERFACE LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH09288470A
公开(公告)日：1997-11-04
申请号：JP10088096
申请日：1996-04-23
申请人： HITACHI LTD , HITACHI VIDEO IND INF SYST INC
发明人： KASAI SHIGEHIKO , FURUHASHI TSUTOMU , KURIHARA HIROSHI , KATO NOBUTAKA , HIRUTA YUKIO , MORI MASASHI
IPC分类号： G09G3/36 , H04N9/30 , H04N9/64
摘要： PROBLEM TO BE SOLVED: To provide a method capable of making a user know values of digital display data after an analog-digital conversion. SOLUTION: A digital display data readout part 12 reads out digital display data 11 from an analog-digital converting part 10 and a character generating part 14 generates readout data display information 15 being character information in accordance with values of read data 13 and then the digital display data after the analog-digital conversion are made displayable on a liquid crystal display panel by performing a superposed display in a superposing display control part 16.

30. 发明专利

JPH07104710A METHOD FOR LIQUID CRYSTAL MULTISCAN DISPLAY AND DEVICE THEREFOR 失效
公开(公告)号：JPH07104710A
公开(公告)日：1995-04-21
申请号：JP25136393
申请日：1993-10-07
申请人： HITACHI LTD , HITACHI VIDEO & INF SYST
发明人： KASAI SHIGEHIKO , SUZUKI TETSUYA , MANO HIROYUKI , WAKIZAKA SHINJI , SATO HIROKO , HAMADA TATSUZO
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36
摘要： PURPOSE:To provide a liquid crystal display device capable of receiving and displaying an interface signal having the resolution different from the liquid crystal display device. CONSTITUTION:A CPU 101 outputs displaying data of 1120 pixels X 780 lines. A liquid crystal panel 7 has displaying dots of 1024 pixels X 768 lines smaller than the resolution. The display screen of the liquid crystal panel 7 is composed of linearly arranged plural pixels. A data converting part 4 converts the displaying data of 1120 pixels X 780 lines into the displaying data of 1024 pixels X 768 lines. When the resolution of the display data is judged to be different from the resolution of the liquid crystal display, a liquid crystal display device capable of multi-scan display is realized by providing a data converting part 4 for making the resolving power of the display data coincident with the resolution of the liquid crystal display by expanding or compressing the display data.

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