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91. 发明专利

JP2005091652A Display device 审中-公开
标题翻译：显示设备
公开(公告)号：JP2005091652A
公开(公告)日：2005-04-07
申请号：JP2003323897
申请日：2003-09-17
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： MANBA NORIO , KUDO YASUYUKI , SATO HIDEO
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36 , H04N5/66
CPC分类号： G09G3/3666 , G09G3/3659 , G09G2300/0809
摘要： PROBLEM TO BE SOLVED: To asynchronously display two different display signals without using a frame memory and to control superposition of two video images on a horizontal line. SOLUTION: This display device is constituted so that a plurality of horizontal display control lines CTL are arranged in parallel with a signal line D, connected to switching elements ctl of pixels, as to the pixel which does not rewrite the display signal among the pixels of which the switching elements sw become an on-state by selected voltage from a gate line G, the switching elements ctl are made to be an off-state, the display signal is not applied to a liquid crystal cell, as to the pixel which rewrites the display signal, the switching element ctl is made the on-state by applying a rewrite selection signal by a horizontal display control circuit 109 and the display signal is rewritten by applying the display signal corresponding to the pixel to be outputted by a signal circuit to the liquid crystal cell. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：异步显示两个不同的显示信号，而不使用帧存储器，并控制水平线上两个视频图像的叠加。解决方案：该显示装置被构造成使得多个水平显示控制线CTL与连接到像素的开关元件ct1的信号线D并联布置，关于不重写显示信号的像素开关元件sw通过选择的电压从栅极线G变为导通状态的像素，使开关元件ct1成为截止状态，显示信号不施加到液晶单元，关于重写显示信号的像素，通过由水平显示控制电路109施加重写选择信号使开关元件ct1变为导通状态，并且通过应用与要由a输出的像素相对应的显示信号来重写显示信号信号电路到液晶单元。版权所有（C）2005，JPO＆NCIPI

92. 发明专利

JP2005010606A Image display device 有权
标题翻译：图像显示设备
公开(公告)号：JP2005010606A
公开(公告)日：2005-01-13
申请号：JP2003176281
申请日：2003-06-20
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： TAI MITSUHARU , HATANO MUTSUKO , YAMAGUCHI SHINYA , SHIBA TAKEO , SATO HIDEO
IPC分类号： G02F1/1345 , G02F1/133 , G02F1/1362 , G02F1/1368 , G09F9/30 , H01L21/336 , H01L29/786
CPC分类号： H01L27/1296 , G02F1/13624 , G02F1/136277 , H01L27/1285 , H01L29/04 , H01L29/78621 , H01L29/78627
摘要： PROBLEM TO BE SOLVED: To attain higher speed of a thin film transistor that constitutes a driving circuit for driving pixels arranged in a matrix state. SOLUTION: In an image display device, a number of pixels PXL are arranged in the matrix state in a display area DSP on an insulating substrate SUB. In the periphery of this display area DSP, there are arranged a drain end pixel driving circuit comprising a drain shift register DSR, a digital/analog converter DAC, a drain level shifter DLS, a buffer BF, and a sampling switch SSW, a gate side pixel driving circuit comprising a gate shift register GSR, a gate level shifter GLS, etc., and various kinds of circuits. The electric current movement of the thin film transistor constituting a circuit area SX that requires the high speed operation of these pixel driving circuits is optimized for each circuit by a plurality of combinations of layouts and arrangement structures, so that the specification characteristic of each circuit is fulfilled. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了获得构成用于驱动以矩阵状排列的像素的驱动电路的薄膜晶体管的更高速度。解决方案：在图像显示装置中，在绝缘基板SUB上的显示区域DSP中，以矩阵状态排列多个像素PXL。在该显示区域DSP的外围，设置有排水端子像素驱动电路，其包括漏极移位寄存器DSR，数字/模拟转换器DAC，漏极电平移位器DLS，缓冲器BF和采样开关SSW，栅极包括栅极移位寄存器GSR，栅极电平移位器GLS等，以及各种电路。构成需要这些像素驱动电路的高速运算的电路区域SX的薄膜晶体管的电流移动通过布局和布置结构的多种组合为每个电路进行了优化，使得每个电路的规格特性为实现。版权所有（C）2005，JPO＆NCIPI

93. 发明专利

JP2003015155A Liquid crystal display device 有权
标题翻译：液晶显示装置
公开(公告)号：JP2003015155A
公开(公告)日：2003-01-15
申请号：JP2001196019
申请日：2001-06-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KAWACHI GENSHIRO , SATO HIDEO , MIYAZAWA TOSHIO , MIKAMI YOSHIAKI , KONDO KATSUMI
IPC分类号： G02F1/1368 , G02F1/1343
CPC分类号： G02F1/134363
摘要： PROBLEM TO BE SOLVED: To realize a liquid crystal display device of low power consumption and high picture quality. SOLUTION: In a pixel area on a liquid crystal side of one of the substrates arranged via the liquid crystal, 1st switching elements and 2nd switching elements operated by scanning signals from gate signal lines, picture electrodes supplied with video signals from drain signal lines via the 1st switching elements, and a counter electrode supplied with a reference voltage signal from a reference voltage signal line via the 2nd switching elements are provided, and the picture electrodes and the counter electrode are each formed of a zonal translucent conductive layer, and also they are alternately arranged in a substantial pixel area.
摘要翻译：要解决的问题：实现低功耗和高画质的液晶显示装置。解决方案：在通过液晶布置的一个基板的液晶侧的像素区域中，通过从栅极信号线扫描信号而操作的第一开关元件和第二开关元件，经由漏极信号线从图像电极提供的视频信号经由提供第一开关元件和经由第二开关元件从参考电压信号线提供参考电压信号的对电极，并且图像电极和对电极各自由区带半透明导电层形成，并且它们也是交替地布置在基本像素区域中。

94. 发明专利

JP2001296522A LIQUID CRYSTAL LIGHT VALVE AND PROJECTION TYPE LIQUID CRYSTAL DISPLAY USING THE SAME 失效
公开(公告)号：JP2001296522A
公开(公告)日：2001-10-26
申请号：JP2001041943
申请日：2001-02-19
申请人： HITACHI LTD , HITACHI DEVICE ENG
发明人： SATO HIDEO , HIROTA SHOICHI , TAKEMOTO KAYAO , MATSUMOTO KATSUMI
IPC分类号： G02F1/13 , G02F1/1335 , G02F1/1343 , G02F1/1345 , G03B21/00 , G09F9/00 , G09F9/30 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal light valve for a projection type display having light-shielding performance durable against irradiation of several millions lux light and displaying an image of high definition and high quality. SOLUTION: A pixel circuit region 101 where a plurality of switching elements 101a arranged in a matrix, a driving circuit region 102 where driving circuit elements 102a are arranged and a peripheral region are formed on the surface of a semiconductor substrate 100, and metal layers 140, 160, 180 are formed thereon with an insulating layer interposed. Reflection electrodes 161 as the output terminals of the switching elements 101a are arranged as divided by slits 182 on the uppermost metal layer 180. A liquid crystal 200 is supplied to fill the space between a transparent electrode 302 formed on a glass substrate 301 facing the reflection electrode 181 and the semiconductor substrate 100. A light shielding layer 163 in the pixel circuit region 101 to cut the light through the slit 181, and a light shielding layer 165 to prevent irradiation in the peripheral region and the driving circuit region 102 are formed on the metal layer 160.

95. 发明专利

JP2001235719A PROJECTION TYPE LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JP2001235719A
公开(公告)日：2001-08-31
申请号：JP2000386772
申请日：2000-12-15
申请人： HITACHI LTD
发明人： NAGAE KEIJI , MORI YUJI , MIKAMI YOSHIAKI , SATO HIDEO , HOSHINO MINORU
IPC分类号： G02F1/13 , G02F1/1335 , G02F1/13357 , G02F1/136 , G02F1/1368 , G03B21/00 , G09G3/20 , G09G3/36
摘要： PROBLEM TO BE SOLVED: To provide a small, high precision, and easy-to-use device relating to a projection type liquid crystal display device according to this invention. SOLUTION: This is a projection type liquid crystal display device, and the projection type liquid crystal display element is provided with a display part having transistors and pixel electrodes connected with the transistors on a substrate, a semiconductor substrate with a built-in driving circuit part for driving the display part, a transparent substrate with transparent electrodes formed thereon, and a liquid crystal layer held between the semiconductor substrate and the transparent substrate; the display part is composed of plural pixels, and each pixel has a switching circuit with a multiple input terminals and one output terminal, and plural voltage input lines connected to the multiple terminals, always supplied with different voltages; and the switching circuit performs the display in a multi-value state by switching the inputs from the voltage input lines connected with the multiple input terminal according to the signals from the driving circuit part.

96. 发明专利

JP2001194646A ACTIVE MATRIX LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JP2001194646A
公开(公告)日：2001-07-19
申请号：JP2000004888
申请日：2000-01-13
申请人： HITACHI LTD
发明人： AONO YOSHINORI , SATO HIDEO , MIKAMI YOSHIAKI , KAGEYAMA HIROSHI
IPC分类号： G09G3/36 , G02F1/133 , G02F1/136 , G02F1/1368 , G09F9/30 , H01L29/786
摘要： PROBLEM TO BE SOLVED: To realize excellent display quality by decreasing an off-current of thin film transistors of a pixel circuit when a scanning line is in the unselected state. SOLUTION: In a pixel circuit, voltages applied across drain electrodes and source electrodes of the thin film transistors are reduced by connecting plural thin film transistors 104, 104b in series, connecting another thin film transistor 104c to the connection point A between the former transistors, connecting another electrode of the thin film transistor 104c to a fixed potential line drive circuit 112 to fix the potential.

97. 发明专利

JP2001154611A ACTIVE MATRIX DEVICE AND METHOD OF PRODUCING THE SAME 失效
公开(公告)号：JP2001154611A
公开(公告)日：2001-06-08
申请号：JP2000282014
申请日：2000-09-18
申请人： HITACHI LTD
发明人： HIROTA SHOICHI , SATO HIDEO , TAKEMOTO KAYAO , SAITO TOSHIO
IPC分类号： G02B5/26 , G02B5/28 , G02F1/1335 , G02F1/1343 , G02F1/136 , G02F1/1368 , G09F9/30
摘要： PROBLEM TO BE SOLVED: To provide an active matrix device and a liquid crystal display device in which a film of a reflection pixel electrode having good reflection characteristics can be formed and which is provided with a means to prevent decrease in the electric capacitance due to leaked light as well as to prevent decrease in the reflectance due to corrosion of the pixel electrode. SOLUTION: An active element 18 is formed on a silicon substrate 1, an insulating layer 6 is formed on the silicon substrate where the active element 18 is formed, the surface of the insulating layer 6 is flattened, and a reflection pixel electrode 7 is formed on the flattened insulating layer 6. Therefore, the film of the reflection pixel electrode 7 having good reflection characteristics can be formed by flattening, and decrease in the electric capacitance due to leaked light as well as decrease in the reflectance due to corrosion of the pixel electrode can be prevented.

98. 发明专利

JP2001042839A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JP2001042839A
公开(公告)日：2001-02-16
申请号：JP21957099
申请日：1999-08-03
申请人： HITACHI LTD
发明人： SATO HIDEO , KAGEYAMA HIROSHI , AONO YOSHINORI , MIKAMI YOSHIAKI , MIYAZAWA TOSHIO
IPC分类号： G09G3/36 , G02F1/133 , G09G3/20
摘要： PROBLEM TO BE SOLVED: To decrease the circuit occupying area of a drive circuit-integrated liquid crystal display device by constituting plural selection switches so as to take a first stage to put the switches into a conducting state and to charge signal lines and a second stage to put the selection switches of the number smaller than that of the first state into a conducting state. SOLUTION: The plural selection switches are so constituted as to take the first stage to put the switches into the conducting state and to charge the signal lines and a second stage to put the selection switches of the number smaller than that of the first state into the conducting state. A control circuit 510 is inputted with the display data D0 to D2 of three bits and a control signal T1 and outputs switch control signals X0 to X7. A gradation voltage generation circuit 520 outputs gradation voltages V0 to V7. A voltage selection circuit 530 is composed of the switches S0 to S7. If the control signal T1 is H in this constitution, the selection switches connected to the gradation voltages V6 and V7 attain the conducting state and if the control signal T1 is L, the selection switch connected to the gradation voltage V7 is in the conducting state.

99. 发明专利

JPH1195212A REFLECTION TYPE LIQUID CRYSTAL DISPLAY ELEMENT AND LIQUID CRYSTAL PROJECTOR 失效
公开(公告)号：JPH1195212A
公开(公告)日：1999-04-09
申请号：JP25171297
申请日：1997-09-17
申请人： HITACHI LTD
发明人： HIROTA SHOICHI , TSUMURA MAKOTO , SATO HIDEO , ITO OSAMU , ADACHI MASAYA , TAKEMOTO KAYAO
IPC分类号： G02B5/30 , G02B27/28 , G02F1/13 , G02F1/1335 , G02F1/1343 , G02F1/136 , G02F1/1368 , G02F1/137 , G09F9/00
摘要： PROBLEM TO BE SOLVED: To make it possible to embody a high light utilization efficiency and high contrast ratio by specifying the product of the thickness and refractive index anisotropy of a phase plate nearly to half the central wavelength of incident light. SOLUTION: The refractive index anisotropy of the phase plate 14 is expressed as Dn PH and the layer thickness thereof as dPH. The relation between the sum Ir of the intensity of the boundary reflected light generated between the phase plate 14 and a liquid crystal layer 8, the retardation (dPH×Dn PH) of the phase plate 14 and the light intensity I0 superposed on image light is expressed like the equation; I0 =Ir Tp Sin (2πdPH×Dn PH/λ). In order to minimize I0 , dPH×Dn PH is merely necessitated to be set at λ/2. Then, the value of the retardation of the phase plate 14 is set at the value of nearly half the central wavelength of the incident light which is made incident on the liquid crystal display element. Namely, the phase plate 14 has a function as a half-wave plate. The phase plate 14 is formed by holding a phase film with two sheets of glass substrates to prevent the change in the retardation of the phase film by the strain and stress occurring in heat, etc.

100. 发明专利

JPH10333118A REFLECTION TYPE LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH10333118A
公开(公告)日：1998-12-18
申请号：JP14043397
申请日：1997-05-29
申请人： HITACHI LTD
发明人： TSUMURA MAKOTO , SATO HIDEO , HIROTA SHOICHI , ADACHI MASAYA , TAKEMOTO KAYAO
IPC分类号： G02F1/133 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To provide the reflection type liquid crystal display device which has a large voltage setting margin of a counter substrate potential to a flicker, can easily obtain a high contrast ratio, and eliminates the possibility that saturation luminance is spoiled. SOLUTION: The reflection type liquid crystal display device inverts the polarity of a voltage applied to each pixel 11 at frame cycles and changes the directions of the polarity inversion in order from a row to a column and from a column to a raw. For the purpose, row inversion driving is done for a 1st frame and then row inversion is done for a 2nd frame. For a 3rd frame, row inversion driving which is made opposite in voltage polarity from the 1st frame and for a final 4th frame, column inversion driving which is opposite in voltage polarity from the 2nd frame is performed; and those four kinds of frames are repeated sequentially as a basic cycle. Means lateral electric field intensity between pixels is lowered and the generation of a domain can be suppressed.

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