公开(公告)号：US4648691A

公开(公告)日：1987-03-10

申请号：US218582

申请日：1980-12-19

申请人： Koichi Oguchi ,  Minoru Hosokawa ,  Satoru Yazawa ,  Mitsuo Nagata

发明人： Koichi Oguchi ,  Minoru Hosokawa ,  Satoru Yazawa ,  Mitsuo Nagata

IPC分类号： G02F1/136 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/139 ,  G09F9/30 ,  G02F1/13

CPC分类号： G02F1/133504 ,  G02F1/133553 ,  G02F1/136277 ,  G02F1/13725 ,  G02F2203/02

摘要： A liquid crystal display device wherein display elements are arranged in a matrix display on a substrate and the display is driven in response to external display signals is provided. The display device includes a thin film layer having a rugged diffusing surface and an opposed transparent electrode plate spaced apart from the thin film layer. A guest-host liquid crystal material including a pleochroic dye is utilized. The thin film layer may be a metal film such as, aluminum, an aluminum alloy, silver or a silver alloy having a rugged surface for providing a diffused white surface formed by vaccum evaporation, sputtering, heat-treatment, recrystallization or etching.

摘要翻译： 一种液晶显示装置，其中显示元件被布置在基板上的矩阵显示器中，并且响应于外部显示信号而驱动显示器。 显示装置包括具有凹凸漫射面的薄膜层和与薄膜层隔开的相对的透明电极板。 使用包含多色染料的客体主体液晶材料。 薄膜层可以是金属膜，例如具有凹凸表面的铝，铝合金，银或银合金，用于提供通过真空蒸发，溅射，热处理，再结晶或蚀刻形成的扩散的白色表面。

公开(公告)号：US4429305A

公开(公告)日：1984-01-31

申请号：US154354

申请日：1980-05-29

申请人： Minoru Hosokawa ,  Koichi Oguchi ,  Satoru Yazawa

发明人： Minoru Hosokawa ,  Koichi Oguchi ,  Satoru Yazawa

IPC分类号： G02F1/133 ,  G02F1/136 ,  G02F1/1368 ,  G09G3/36

CPC分类号： G09G3/3648 ,  G09G2300/0876

摘要： A matrix liquid crystal display circuit includes a selecting transistor connected to the picture element and a capacitor for each picture element of the matrix. The other picture element and capacitor terminals connect to common electrodes and the transistor gates in each row connect to a common electrode. In each column a common source line connects to the sources of the transistors and a signal sampling circuit periodically applies an image signal to the source line of each column in sequence. No amplification is used between the sampling circuit and the transistor sources. Metallic leads serve as the source lines, but other circuits and components are integrated on a common substrate.

摘要翻译： 矩阵液晶显示电路包括连接到像素的选择晶体管和矩阵的每个像素的电容器。 其他像素和电容器端子连接到公共电极，并且每行中的晶体管栅极连接到公共电极。 在每列中，公共源极线连接到晶体管的源极，并且信号采样电路周期性地将图像信号施加到每列的源极线。 在采样电路和晶体管源之间不使用放大。 金属引线用作源极线，但是其它电路和部件集成在公共基板上。

公开(公告)号：US4393380A

公开(公告)日：1983-07-12

申请号：US153973

申请日：1980-05-28

申请人： Minoru Hosokawa ,  Masayuki Ikeda ,  Satoru Yazawa

发明人： Minoru Hosokawa ,  Masayuki Ikeda ,  Satoru Yazawa

IPC分类号： G02F1/1362 ,  G09G3/36 ,  H04N3/12

CPC分类号： G02F1/136277 ,  G09G3/3648 ,  H04N3/127 ,  G02F1/13454 ,  G02F1/136213 ,  G09G2300/0876 ,  G09G3/3614

摘要： A matrix liquid crystal display circuit operates on a level of AC voltage equal to the voltage required for DC drive. The circuit includes a selecting transistor connected to the picture element and a capacitor for each picture element of the matrix. The capacitor in each row connects to a common electrode and the transistor gates in each row connect to a common electrode. The voltage level of the common capacitor electrode is shifted periodically relative to a reference voltage in order to invert the image signal polarity across the picture element and produce an AC drive. Inverted image signals of similar voltage level are alternately sampled.

摘要翻译： 矩阵液晶显示电路的工作电压等于直流驱动所要求的电压。 电路包括连接到像素的选择晶体管和矩阵的每个像素的电容器。 每行中的电容器连接到公共电极，并且每行中的晶体管栅极连接到公共电极。 公共电容器电极的电压相对于参考电压周期性移位，以便反转图像信号极性跨越图像元素并产生AC驱动。 具有类似电压电平的反相图像信号被交替采样。

公开(公告)号：US4743096A

公开(公告)日：1988-05-10

申请号：US8894

申请日：1987-01-30

申请人： Yoichi Wakai ,  Satoru Yazawa ,  Hiroaki Ikejiri ,  Yoshiro Uchikawa ,  Masahide Isuda

发明人： Yoichi Wakai ,  Satoru Yazawa ,  Hiroaki Ikejiri ,  Yoshiro Uchikawa ,  Masahide Isuda

IPC分类号： G09G3/20 ,  G09G3/36 ,  G02F1/13

CPC分类号： G09G3/367 ,  G09G3/2014

摘要： The present invention provides, in an active matrix liquid crystal display device of the type including non-linear elements, for the application of an ON pulse-width modulation signal by the data line driving circuit at the rearward end of each selected period, during which the voltage corresponding to the duty-cycle of the selected signal is applied to the liquid crystal layer. The result is accurate reproduction of gray-scale images in the display under conditions of high duty-cycle driving. Further, cross-talk between columns caused by the data signal is controlled by supplying a signal voltage which eliminates the residual charges in the liquid crystal layer at the end of each selected period.

摘要翻译： 本发明提供一种包括非线性元件的有源矩阵液晶显示装置，用于在每个选定时段的后端由数据线驱动电路施加ON脉宽调制信号，在此期间 对应于所选信号的占空比的电压被施加到液晶层。 结果是在高占空比驱动的条件下在显示器中准确地再现灰度图像。 此外，通过在每个选定的周期结束时提供消除液晶层中残留电荷的信号电压来控制由数据信号引起的列之间的串扰。

公开(公告)号：US06429780B1

公开(公告)日：2002-08-06

申请号：US09598362

申请日：2000-06-21

申请人： Satoru Yazawa ,  Naoki Miyashita

发明人： Satoru Yazawa ,  Naoki Miyashita

IPC分类号： G08B2100

CPC分类号： B62D15/02 ,  G01D3/08 ,  G01D5/3473 ,  G01D5/36

摘要： A failure detection method for a steering wheel sensor which includes a center sensor determining a position of a steering wheel center and a steering wheel angle sensor determining a steering wheel angle. A steering wheel center is first determined by the center sensor. The steering wheel angle is determined at said steering wheel center by the steering wheel sensor. A failure of the steering wheel sensor is considered to occur if no steering wheel center is determined by the center sensor when the steering wheel turns 360 degrees from the first determined steering wheel angle.

摘要翻译： 一种用于方向盘传感器的故障检测方法，其包括确定方向盘中心的位置的中心传感器和确定方向盘角度的方向盘角度传感器。 方向盘中心首先由中心传感器确定。 通过方向盘传感器在所述方向盘中心处确定方向盘角度。 当方向盘从第一确定的方向盘角度转动360度时，如果在中心传感器不确定方向盘中心的情况下，则认为发生方向盘传感器的故障。

公开(公告)号：US4431272A

公开(公告)日：1984-02-14

申请号：US260612

申请日：1981-05-05

申请人： Satoru Yazawa ,  Shunji Banda ,  Kenichi Endo

发明人： Satoru Yazawa ,  Shunji Banda ,  Kenichi Endo

IPC分类号： G02F1/1335 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/13

CPC分类号： G02F1/13439 ,  G02F1/133553 ,  G02F1/1362 ,  G02F2203/02

摘要： A liquid crystal display device including an opaque reflective electrode on the lower plate of the device is provided. The surface of the electrode is a rugged surface wherein the average angle of inclination of an inclined plane passing through the inclined regions of the rugged surface is 30 degrees or less with respect to a horizontal plane coinciding with the surface of the lower plate. The area where the angle of inclination of the rugged portions is greater than 40 degrees occupies 30% or less of the surface area of the electrode. The average pitch of the rugged regions of the electrode surface is greater than 3 .mu.m and the depth of the rugged region is about 0.2 .mu.m on the average, but less than 5 .mu.m.The opaque electrode is formed from a metal having a reflectance of 80% or more with respect to incident light entering from a direction substantially vertical to the lower plate. The electrode is preferably an aluminum electrode and the rugged surface is obtained by first depositing an insulating layer of SiO.sub.2 by CVD and selectively etching the layer of SiO.sub.2 at an angle of between 0 degrees and 30 degrees to form a rugged surface. Alternatively, the SiO.sub.2 layer is treated by plasma spray and a resist is applied thereto. A widened viewing angle for a display utilizing a polarizer and a guest-host liquid crystal or a colored liquid crystal is obtained by utilizing the rugged electrode in accordance with the invention.

摘要翻译： 提供了一种液晶显示装置，其在装置的下板上包括不透明反射电极。 电极的表面是凹凸表面，其中穿过凹凸表面的倾斜区域的倾斜平面的平均倾角相对于与下板的表面重合的水平面为30度或更小。 凹凸部的倾斜角度大于40度的区域占电极表面积的30％以下。 电极表面粗糙区域的平均间距大于3μm，粗糙区域的平均深度平均约为0.2μm，但小于5μm。 不透明电极由相对于从基板垂直于下板的方向入射的入射光的反射率为80％以上的金属形成。 电极优选为铝电极，并且通过首先通过CVD沉积SiO 2绝缘层并且以0度和30度之间的角度选择性地蚀刻SiO 2层以形成粗糙表面来获得粗糙表面。 或者，通过等离子体喷涂处理SiO 2层，并向其施加抗蚀剂。 通过利用根据本发明的粗糙电极，可以获得利用偏振器和客体主体液晶或彩色液晶的显示器的加宽视角。