专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明专利

JP2008058993A Display apparatus 有权
标题翻译：显示设备
公开(公告)号：JP2008058993A
公开(公告)日：2008-03-13
申请号：JP2007280995
申请日：2007-10-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NITTA HIROYUKI , MANO HIROYUKI , FURUHASHI TSUTOMU , OISHI SUMIHISA , TSUNEKAWA SATORU , FUTAMI TOSHIO , TAKITA ISAO , IKEDA MAKIKO
IPC分类号： G02F1/133 , G09G3/36 , G09G3/20
CPC分类号： G09G3/2011 , G09G3/3614 , G09G3/3655 , G09G3/3688 , G09G3/3696 , G09G2310/0248 , G09G2310/027 , G09G2310/0281 , G09G2310/0289 , G09G2310/0297 , G09G2330/023
摘要： PROBLEM TO BE SOLVED: To realize high image quality display by arranging a liquid crystal driver on one side of a liquid crystal panel, reducing a mounting area and inverting at a row and to contract circuit scale of a power source circuit by incorporating an alternating current circuit of a reference voltage of liquid crystal drive to the liquid crystal driver in a liquid crystal display apparatus. SOLUTION: Since the display device has a voltage generation means for generating two alternating current reference voltages driving alternating current from an input reference voltage and an alternating current signal and a means for outputting to be converted into a liquid crystal application voltage different in the alternating current drive at each output to the liquid crystal panel from display data, the two alternating current reference voltages and the alternating current signal, the output in the same liquid crystal driver can be made a liquid crystal drive voltage different from alternating current timing. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了通过在液晶面板的一侧布置液晶驱动器来实现高图像质量显示，减少了安装面积并在一行中反转并且通过并入电源电路来缩小电路规模液晶显示装置中的液晶驱动器的参考电压的交流电路。解决方案：由于显示装置具有用于产生从输入参考电压和交流信号驱动交流电的两个交流参考电压的电压产生装置和用于输出的装置，以转换成不同于从显示数据，两个交流参考电压和交流信号到液晶面板的每个输出处的交流驱动，可以使同一液晶驱动器中的输出成为不同于交流定时的液晶驱动电压。版权所有（C）2008，JPO＆INPIT

42. 发明专利

JP2007025726A Liquid crystal driving circuit and liquid crystal display device 有权
标题翻译：液晶驱动电路和液晶显示器件
公开(公告)号：JP2007025726A
公开(公告)日：2007-02-01
申请号：JP2006288013
申请日：2006-10-23
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NITTA HIROYUKI , MANO HIROYUKI , FURUHASHI TSUTOMU , OISHI SUMIHISA , TSUNEKAWA SATORU , FUTAMI TOSHIO , TAKITA ISAO , IKEDA MAKIKO
IPC分类号： G02F1/133 , G09G3/36 , G09G3/20
CPC分类号： G09G3/2011 , G09G3/3614 , G09G3/3655 , G09G3/3688 , G09G3/3696 , G09G2310/0248 , G09G2310/027 , G09G2310/0281 , G09G2310/0289 , G09G2310/0297 , G09G2330/023
摘要： PROBLEM TO BE SOLVED: To display higher image quality by arranging a liquid crystal driver on one side of a liquid crystal panel to reduce a packaging area and by performing column-by-column inversion driving and to reduce the circuit scale of a power source circuit by building an AC switching circuit of a reference voltage of liquid crystal driving in liquid crystal driver. SOLUTION: Since the liquid crystal display is constituted by providing a voltage generation means for generating two ways of AC switching reference voltages for performing AC switching drive from reference voltage to be input and an AC switching signal and a means for converting the two ways of AC switching reference voltage and the AC switching signal into liquid crystal impressed voltage with different AC switching drive for every output and for outputting the liquid crystal impressed voltage, output in one liquid crystal driver is made to be liquid crystal drive voltage with mutually different timing of AC switching. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了通过在液晶面板的一侧上布置液晶驱动器来降低包装面积并且通过执行逐列反转驱动来降低电路规模，以显示更高的图像质量通过在液晶驱动器中构建液晶驱动的参考电压的交流开关电路来实现电源电路。解决方案：由于液晶显示器是通过提供电压产生装置构成的，该电压产生装置用于产生用于从要输入的参考电压进行交流开关驱动的交流开关参考电压的两种方式，以及交流开关信号和用于转换两种方式的装置交流开关参考电压和交流开关信号的方式为每个输出采用不同交流开关驱动的液晶施加电压，并输出液晶压入电压，将一个液晶驱动器中的输出变为具有相互不同的液晶驱动电压交流切换时序。版权所有（C）2007，JPO＆INPIT

43. 发明专利

JPH08234237A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH08234237A
公开(公告)日：1996-09-13
申请号：JP4044495
申请日：1995-02-28
申请人： HITACHI LTD
发明人： KURIHARA HIROSHI , TANAKA TAKESHI , IKEDA MAKIKO , MISHIMA YASUYUKI
IPC分类号： G02F1/1345 , G02F1/133 , G02F1/136 , G02F1/1368 , H01L29/786
摘要： PURPOSE: To make it possible to form the display region larger than the outside dimension of a liquid crystal display panel by arranging plural driving circuits for supplying liquid crystal layer driving voltage to plural electrodes of the liquid crystal display panel on one side of the liquid crystal display panel. CONSTITUTION: The liquid crystal display panel 100 is composed of 640×3×480 pixels. A drain driver 101 and gate driver 104 composed of driving IC chips are arranged on one side of such panel. The output of the drain driver 101 is supplied by wirings 112 for drain to the signal electrodes 102 and the output of the gate driver 104 is supplied by gage wirings 113 to the scanning electrodes 103. The respective signal electrodes 102 are connected to the drain terminal of thin-film transistor(TFTs) in the column direction and the scanning electrodes 103 are connected to the gate terminals of the TFTs is the row direction. As the result, the area of the picture frame of the liquid crystal display panel 100 is made smaller and the formation of the display region to have a size larger than the outside dimension of the liquid crystal display panel is made possible.

44. 发明专利

JPH0887251A LIQUID CRYSTAL DRIVE CIRCUIT AND LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH0887251A
公开(公告)日：1996-04-02
申请号：JP12001795
申请日：1995-05-18
申请人： HITACHI LTD
发明人： NITTA HIROYUKI , MANO HIROYUKI , FURUHASHI TSUTOMU , OISHI SUMIHISA , TSUNEKAWA SATORU , FUTAMI TOSHIO , TAKITA ISAO , IKEDA MAKIKO
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36
摘要： PURPOSE: To simultaneously provide high picture quality, miniaturization and thinning and a low cost by converting and outputting two ways of alternating reference voltages and an alternating signal to liquid crystal impressed voltages of different alternating drive at every output for a liquid crystal panel. CONSTITUTION: First of all, a latch signal 113 synchronizing with the display data 101 is generated from a control signal group 109 in a latch address control circuit 112, and the display data 110 are latched to a latch circuit 114 successively. The display data 115 latched to the latch circuit 114 are latched to the latch circuit 116 simultaneously by one horizontal line by a timing signal 111 synchronizing with a gate selection signal 124 of a scan circuit 123 to be inputted to a liquid crystal drive circuit 121. In a voltage generation circuit 118, AC reference voltages 119, 120 with alternating timing different from each other are generated from the reference voltages 105, 106 generated in a power source circuit 104 and the alternating signal 103 to be inputted to the liquid crystal drive circuit 121. In the liquid crystal drive circuit 121, a liquid crystal drive voltage is generated based on the AC reference voltages 119, 120 corresponding to the display data 117, and the liquid crystal panel 125 is driven.

45. 发明专利

JPH07295515A LIQUID CRYSTAL DISPLAY DEVICE AND DATA DRIVER MEANS 失效
公开(公告)号：JPH07295515A
公开(公告)日：1995-11-10
申请号：JP9102594
申请日：1994-04-28
申请人： HITACHI LTD , HITACHI DEVICE ENG
发明人： IKEDA MAKIKO , FURUHASHI TSUTOMU , NITTA HIROYUKI , TSUNEKAWA SATORU , TAKITA ISAO , MIYATA JUNICHI
IPC分类号： G02F1/133 , G09G3/36
摘要： PURPOSE:To reduce the price of a liquid crystal display system by providing a data driver which outputs a voltage corresponding to display data and a scanning driver which outputs a scanning signal making the scanning line constituting a selected line effective. CONSTITUTION:Latches 204-206 of R, G, and B provided in the data driver 108 fetch only R, G, and B data out of the displayed data by the data driver 108 as many as for data signal lines 109. A liquid crystal driving voltage generating circuit shares the conversion of the R, G, and B data, and converts display data of the data signal lines 109 that the data driver 108 has into a liquid crystal driving voltage at the same time and outputs it to the data signal lines 109. The scanning driver 111 divides a period of one line into three, generates an R, a G, and a B scanning signal each shifted a 1/3-line period, and displays an R, a G, and a B display line constituting one dot of a liquid crystal panel 112 in order in the one-line period. Therefore, an inexpensive liquid crystal controller which does not have an R, a G, and a B line memory is usable.

46. 发明专利

JPH06301356A DRIVING CIRCUIT FOR LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH06301356A
公开(公告)日：1994-10-28
申请号：JP8968493
申请日：1993-04-16
申请人： HITACHI LTD , HITACHI VIDEO & INF SYST
发明人： KASAI SHIGEHIKO , FURUHASHI TSUTOMU , IKEDA MAKIKO , FUTAMI TOSHIO , TSUNEKAWA SATORU , SUZUKI TETSUYA
IPC分类号： G02F1/133 , G09G3/36
摘要： PURPOSE:To realize high-quality display by controlling the polarities of the voltages to be impressed to the respective pixel parts of one horizontal line in such a manner that a positive polarity and negative polarity are evenly impressed by using a low-voltage drain driver. CONSTITUTION:This driving circuit is composed of low-breakdown strength signal driving circuits 29, 30 which form the voltages to be improved to liquid crystals from the vertical direction of a liquid crystal panel 37, a power source circuit for forming the voltages to be impressed to the liquid crystals from the reference voltages to be supplied to these signal driving circuits 29, 30 by converting the reference voltages to antiphases at a certain period with respect to the DC counter voltages of the liquid crystals and level shifters 23, 24 for converting the voltage levels of display digital display data and timing signals in accordance with the reference voltages supplied to the signal driving circuits 29, 30, by which the signal driving circuits 29, 30 are changed to the circuits operating on AC.

47. 发明专利

JP2006048083A Liquid crystal driving circuit and liquid crystal display device 有权
标题翻译：液晶驱动电路和液晶显示器件
公开(公告)号：JP2006048083A
公开(公告)日：2006-02-16
申请号：JP2005296834
申请日：2005-10-11
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NITTA HIROYUKI , MANO HIROYUKI , FURUHASHI TSUTOMU , OISHI SUMIHISA , TSUNEKAWA SATORU , FUTAMI TOSHIO , TAKITA ISAO , IKEDA MAKIKO
IPC分类号： G02F1/133 , G09G3/36 , G09G3/20
CPC分类号： G09G3/2011 , G09G3/3614 , G09G3/3655 , G09G3/3688 , G09G3/3696 , G09G2310/0248 , G09G2310/027 , G09G2310/0281 , G09G2310/0289 , G09G2310/0297 , G09G2330/023
摘要： PROBLEM TO BE SOLVED: To make it possible to display higher image quality by arranging a liquid crystal driver on one side of a liquid crystal panel to reduce a packaging area and to make it possible to display high image quality by performing column-by-column inversion driving and to reduce the circuit scale of a power source circuit by building an AC switching circuit of a reference voltage of liquid crystal driving into the liquid crystal driver. SOLUTION: The configuration having a voltage generation means for generating two ways of AC switching reference voltages for AC switching driving from the inputted reference voltage and an AC switching signal and a means for converting display data, the two ways of the AC switching reference voltages and the AC switching signals to different liquid crystal applying voltages of the AC switching driving by each of the outputs and outputting the same to the liquid crystal panel is employed, therefore the output inside the same liquid crystal driver can be made into the liquid crystal driving voltages varying in the timings for the AC switching from each other. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了通过在液晶面板的一侧布置液晶驱动器以减少包装区域并且通过执行列显示来显示高图像质量，可以显示更高的图像质量。并且通过构建液晶驱动器的参考电压的交流开关电路来减小电源电路的电路规模。解决方案：具有电压产生装置的结构，用于从输入的参考电压和AC开关信号产生用于AC开关驱动的交流开关参考电压的两种方式，以及用于转换显示数据的装置，交流开关的两种方式参考电压和交流切换信号到各个输出的交流开关驱动的不同液晶施加电压并将其输出到液晶面板，因此可以将相同液晶驱动器内部的输出制成液体晶体驱动电压在交流切换的定时中变化。版权所有（C）2006，JPO＆NCIPI

48. 发明专利

JP2002236475A LIQUID CRYSTAL DRIVER WITH BUILT-IN MEMORY AND LIQUID CRYSTAL DISPLAY 审中-公开
公开(公告)号：JP2002236475A
公开(公告)日：2002-08-23
申请号：JP2001368370
申请日：2001-12-03
申请人： HITACHI LTD
发明人： IKEDA MAKIKO , FURUHASHI TSUTOMU , NITTA HIROYUKI , TAKITA ISAO , KASAI SHIGEHIKO , TSUNEKAWA SATORU
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36
摘要： PROBLEM TO BE SOLVED: To reduce power consumption without lowering the operating efficiency of a system by incorporating a display memory in each liquid crystal driver for generating voltage to be applied to the liquid crystal corresponding to display data. SOLUTION: In this liquid crystal display, a memory cell 120 is incorporated in each liquid crystal driver 105 for generating voltage to be applied to the liquid crystal with respect to a liquid crystal panel 132, and an address bus 101, a data bus 102, a control signal bus 103 are provided in an interface with the system to easily update data of an arbitrary position. The device performs display by converting display data stored in the memory cells 120 into voltage to be applied to the liquid crystal with the timing of the control signal bus 103 and by outputting the voltage to the liquid crystal panel 132.

49. 发明专利

JP2000148080A DISPLAY CONTROLLER FOR MULTI-DISPLAY DEVICE, DISPLAY DEVICE AND MULTI-DISPLAY DEVICE 失效
公开(公告)号：JP2000148080A
公开(公告)日：2000-05-26
申请号：JP32315498
申请日：1998-11-13
申请人： HITACHI LTD
发明人： FURUHASHI TSUTOMU , MORI TATSUMI , NISHITANI SHIGEYUKI , KASAI SHIGEHIKO , IKEDA MAKIKO , KAMIMAKI HIDEKI
IPC分类号： G09G3/36 , G06F3/14 , G09G3/20 , G09G5/399
摘要： PROBLEM TO BE SOLVED: To provide a display controller, a display device, a multi-display device and a multi-display system realizing an expansion display, a high definition display with inexpensive constitution in a multi-display constituted of plural liquid crystal displays. SOLUTION: A circuit setting a horizontal data fetch start position, horizontal data fetch width, a vertical data fetch start position, vertical data fetch width and an expansion rate, the circuit storing the display data and the circuit setting an ID number of liquid crystal panels 102 (1-n) are provided in multi-display circuits 101 (1-n) answering to respective liquid crystal panels 102-1 to 102-n. Thus, by that respective multi-display circuits 101-1 to 101-n fetch/display the display data of the same or different areas, a colorful display image is obtained.

50. 发明专利

JP2000122616A LIQUID CRYSTAL DISPLAY DEVICE HAVING SWITCH CIRCUIT 失效
公开(公告)号：JP2000122616A
公开(公告)日：2000-04-28
申请号：JP28907298
申请日：1998-10-12
申请人： HITACHI LTD
发明人： IKEDA MAKIKO , MANO HIROYUKI
IPC分类号： G09G3/36 , G02F1/133 , G09G3/20 , H04N5/66
摘要： PROBLEM TO BE SOLVED: To reduce the number of part items, realize a high definition, and reduce the size, weight and a cost by arranging a switch circuit for switching liquid crystal impressing voltage and gate ON voltage output driven by being divided into blocks. SOLUTION: A liquid crystal controller 104 generates a dot clock in synchronism with display data, a CL 1 becoming effective with every single horizontal period and an FLM becoming effective with every single frame to be transferred to upper/lower data drivers 115, 119, a data switch control circuit 109, a scanning driver 123 and a scanning switch control circuit 112. The data switch circuit 109 generates control signals of the upper/lower data drivers 115, 119 becoming effective with every 1/2 horizontal period and control signals of upper/ lower data switches 117, 121 from the transferred dot clock and the CL1 to be respectively outputted through a signal conductor 110 and a signal path 111. The scanning switch control circuit 112 generates a control signal of the scanning driver 123 becoming effective with every 1/2 frame and a control signal of a scanning switch 125 from the CL1 and the FLM to be outputted through a signal conductor 113 and a signal path 114.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式