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51. 发明专利

JPH08254969A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH08254969A
公开(公告)日：1996-10-01
申请号：JP5898395
申请日：1995-03-17
申请人： HITACHI LTD
发明人： IGARASHI YOICHI
IPC分类号： G02F1/133 , G09G3/36
摘要： PURPOSE: To prevent a DC voltage from being impressed on a liquid crystal layer by selecting and outputting an internal clock when the stoppage of the clock to be input from a main computer is detected. CONSTITUTION: When the output of an integration circuit A101 or an integration circuit B102 is fixed to an H level, the output of an inveter 131 or an inverter 132 is turned to an L level and since the L level is inputted to the input terminal of one side of a NAND circuit 121, the NAND circuit 121 is fixed to the H level. When the NAND circuit 121 is fixed to the H level, the output of an inverter 112 is turned to the L level and since the L level is inputted to the input terminal of one side of a NAND circuit 122, the output of the NAND 122 is fixed to the H level and then the clock from the main computer is stopped. Moreover, when the NAND circuits 121, 122 are fixed to the H levels, the internal clock from an oscillator 140 is outputted through NAND circuits 123, 124.

52. 发明专利

JPH08166776A DISPLAY DEVICE 失效
公开(公告)号：JPH08166776A
公开(公告)日：1996-06-25
申请号：JP31077494
申请日：1994-12-14
申请人： HITACHI LTD
发明人： IGARASHI YOICHI , FUTAMI TOSHIO
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36
摘要： PURPOSE: To make display data easy to look by moving a display image and performing data processing when the number of display pixels of a display section is not the same as the number of display pixels of transmitted display data. CONSTITUTION: A value of a register 22 is defined as (a), the number of all display lines on a liquid crystal display panel stored in a vertical section 11 of a display fixed constant section 10 is defined as (b), and a value of a register 32 is defined as (c). A value of (a) is compared with a value of (b) in a comparison section 40, and if the compared result is a=b, received display data is outputted to a drain driver as it is. Also, a value of (a) is compared with a value of (b) in a comparison section 40, if the compared result is a

53. 发明专利

JPH08122806A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH08122806A
公开(公告)日：1996-05-17
申请号：JP25642694
申请日：1994-10-21
申请人： HITACHI LTD , HITACHI DEVICE ENG
发明人： UEDA SHIRO , KUMAOKA SHUNICHI , SASUGA MASUMI , SHIBATA KATSUHIKO , IGARASHI YOICHI , KOBAYASHI NAOTO
IPC分类号： G02F1/1333 , G02F1/1345 , H05K1/00 , H05K3/36
摘要： PURPOSE: To increase wiring density, and make bending possible too for miniaturizing a liquid crystal display device by composing a wiring substrate for a peripheral driving circuit with a multilayer flexible substrate. CONSTITUTION: A liquid crystal display device is composed of a chip-on-glass type liquid crystal display element PNL having a driving IC loaded on a substrate being one of two sheets of piled up transparent insulated substrates SUB 1, 2, and a multilayer flexible substrate FML which is arranged in an outer peripheral part on the side of at least one side of the element PNL and electrically connected to the input terminal pattern of the driving IC, and has more than three layers of conductive layer parts. In this case, the part FML of more than three layers of conductive layers, for instance that of four layers of conductive layers L1-L4 is provided in parallel to the side of the liquid crystal panel PNL, and since peripheral circuit wiring and electronic parts are loaded in this part, even if the number of data lines increases, the device can correspond to the above increase by increasing the number of layers as the external form of the substrate is maintained. A connection between conductors can be electrically carried out through a through hole.

54. 发明专利

JPH0822265A TFT LIQUID CRYSTAL DISPLAY 失效
公开(公告)号：JPH0822265A
公开(公告)日：1996-01-23
申请号：JP15687294
申请日：1994-07-08
申请人： HITACHI LTD
发明人： IGARASHI YOICHI , KONDO HIRONORI , IMASHIRO YOSHIHIRO , HASEGAWA KAORU
IPC分类号： G02F1/1333 , G02F1/133 , G09G3/36
摘要： PURPOSE:To make the display region of a liquid crystal display device larger than its outside dimensions as the area of the picture frame of a liquid crystal display panel enables to be small by arranging a drain driver at either above or below the liquid crystal display panel. CONSTITUTION:The drain driver 211 is arranged only on the upper side of the liquid crystal display panel (LCD). The carrier output of the fore stage of the driver 211 is inputted as it is to the carrier input of the driver 211 of the ensuing stage. The latching operation of the data latching part of the driver 211 is controlled by this carrier signal, by which writing of the erroneous display data in the data latching part is prevented. A display control section 201 has a role of an interface with a main computer as well and executes driving of the driver 211 and a gate driver 206 in accordance with the control signal, clock and data for display sent from the main computer. Control is so executed in the control section 201 that the simple one row of the display data transmitted from the main computer is inputted to the driver 211.

55. 发明专利

JPH0756540A DRIVING METHOD FOR MATRIX TYPE DISPLAY DEVICE 失效
公开(公告)号：JPH0756540A
公开(公告)日：1995-03-03
申请号：JP20615493
申请日：1993-08-20
申请人： HITACHI LTD
发明人： KURIHARA HIROSHI , FUJII TATSUHISA , KOSHI HIROBUMI , MANO HIROYUKI , NISHITANI SHIGEYUKI , IGARASHI YOICHI
IPC分类号： G02F1/133 , G09G3/36
摘要： PURPOSE:To miniaturize a control circuit and to reduce power consumption by giving information of a orthogonal function to only a specific row electrode driving means out of electrodes simultaneously driven and divided with a row unit. CONSTITUTION:For example, when a display device having 240 rows is driven with 8 rows and 16 divisions distributing each 4 divisions, a row function generating means outputs only data of an orthogonal function having values of 1 or -1 to a row electrode driving means 57 as row data 51, and a partial counter 127 counts the number of row data based on a row data control bus signal 52, outputs a partial clock 129 at the point of time when row data of prescribed numbers is finished to transfer. A transfer destination switching means 137 selects a voltage conversion means 138 transferring row data whenever a partial clock 129 is inputted, and transfers data. Also, only the voltage conversion means 138 to which data is transferred outputs corresponding data as row electrode signals 140-144, and the voltage conversion means 138 other than that outputs voltage corresponding to function data '0'.

56. 发明专利

JPH05292038A 失效
公开(公告)号：JPH05292038A
公开(公告)日：1993-11-05
申请号：JP8736192
申请日：1992-04-08
申请人： HITACHI LTD
发明人： TOMOOKA KEIJI , SAKAKIDA HISAHIRO , NISHIMURA SHIN , YANO YOSHIHIRO , IGARASHI YOICHI , MATSUDA HIRONARI , AOKI SATOSHI , NAKANO YUKIO , TAKATORI MASAHIRO , KAZAWA TORU , SASAKI SHINYA , TAKEYARI RIYOUJI , NAKANO HIROYUKI
IPC分类号： H04B3/36 , H04B10/032 , H04B10/035 , H04B10/07 , H04B10/071 , H04B10/077 , H04B10/29 , H04B10/294 , H04B10/16 , H04B10/08
摘要： PURPOSE:To perform high-speed transmission and to perform the monitoring and control of a fault, etc., by remote operation by outputting monitor signal light with the same wavelength as that of excitation light, and multiplexing by synthesizing the main signal light with the monitoring signal light. CONSTITUTION:The transmission of a monitor signal from submarine optical terminal station transmission equipment 24 is performed by using a light source 114 for monitor signal of 1480nm wavelength band provided in a light booster amplifier 40. Thereby, the monitoring signal light can be transmitted to a downstream line by wavelength-superimposing the monitoring signal light on the main signal light. In such a case, a WDM coupler 100 for wavelength multiplex for the monitoring signal light and the main signal light is also used as a WDM coupler for excitation light to prevent the output of the light booster amplifier 40 from being decreased. Also, two Er doped fibers are used as a submarine optical amplification repeater 2. A light source for excitation of 1480nm wavelength band is used in each a Er doped fiber, and an initial stage is employed for forward excitation, and a rear stage for backward excitation. Thereby, it is possible to provide a low NF and high output simultaneously.

57. 发明专利

JPH04157521A MAGNETIC MEMORY CONTROLLER 失效
公开(公告)号：JPH04157521A
公开(公告)日：1992-05-29
申请号：JP28373990
申请日：1990-10-22
申请人： HITACHI LTD
发明人： IGARASHI YOICHI , KURIHARA HIROSHI
IPC分类号： G06F3/06
摘要： PURPOSE:To obtain a small-sized magnetic memory controller with simple construction by using a pseudo static type RAM as a buffer memory used for a data transfer between a hard disk memory device and a hot resist. CONSTITUTION:The hard disk memory controller is constructed by three semiconductor integrated circuit devices composed of a hard disk controller HDC, the pseudo static type RAM, and an interface. This, pseudo static type RAM is used as the buffer memory. Therefore, it is possible to utilize the features such as the large memory capacity of the pseudo static type RAM, an interchangeability between a memory access and the static type RAM, and an easy refreshing control. Thus, the small-sized magnetic memory controller with the simple construction can be obtained.

58. 发明专利

JPH03233999A MOUNTING STRUCTURE FOR ELECTRONIC DEVICE 失效
公开(公告)号：JPH03233999A
公开(公告)日：1991-10-17
申请号：JP2850790
申请日：1990-02-09
申请人： HITACHI LTD
发明人： SHINDO TAKANORI , KAMIMURA OSAMU , ASAI SEIJI , MORI TOSHIYUKI , IGARASHI YOICHI , ASAKAWA YOSHIFUMI , MATSUNAGA MITSUO
IPC分类号： H05K7/20 , H05K1/18
摘要： PURPOSE:To make it possible to cool a heat generating part effectively by providing a heat radiating fin whose depth doesn't exceed the thickness of a module at one end part of the module and storing the fin in the same apparatus case as the module. CONSTITUTION:Heat radiating fin 3 whose depth doesn't exceed the thickness of a module 33 is provided at one end part of the module 33, and is stored in the same apparatus case 1 as the module. The heat radiating fin 3 is manufactured by protruding the one end part of a cooling panel 5 to both the surfaces of which print-circuit boards 4 are bonded, leaving as it is. In another case, the fin 3 is configured by connecting directly the fin made of a lightweight material of high thermal conductivity such as aluminum with the upper part of the cooling panel 5. Thereby, the structure for radiating heat effectively by thermal conduction can be configured.

59. 发明专利

JPS62141798A NATURAL AIR COOLING APPARATUS 失效
公开(公告)号：JPS62141798A
公开(公告)日：1987-06-25
申请号：JP28193685
申请日：1985-12-17
申请人： HITACHI LTD
发明人： IGARASHI YOICHI
IPC分类号： H05K7/20 , H01L23/46 , H01L23/467

60. 发明专利

JPS61212099A MOUNTING CONSTRUCTION OF FAN FOR COOLING ELECTRONIC EQUIPMENT 失效
公开(公告)号：JPS61212099A
公开(公告)日：1986-09-20
申请号：JP5228385
申请日：1985-03-18
申请人： HITACHI LTD
发明人： IGARASHI YOICHI
IPC分类号： H05K7/20

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