公开(公告)号：US20130249853A1

公开(公告)日：2013-09-26

申请号：US13722531

申请日：2012-12-20

Applicant: JAPAN DISPLAY WEST, INC.

Inventor： Toshihiko Tanaka

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: A detection device that detects the approach of a conductor includes: a sensor section including transmission and reception electrodes, and detecting the approach of the conductor to an intersection point where the transmission and reception electrodes intersect with each other; a voltage generating section generating an alternating voltage in which a rise and a fall of a voltage value according to first and second slopes are alternately repeated; a current generating section applying the alternating voltage to the transmission electrode to generate, in the reception electrode, an alternating current having a uniform current value according to the first or second slope while the voltage value of the alternating voltage is rising or falling; a signal generating section generating a detection signal vibrating with an amplitude according to a distance between the intersection point and the conductor; and a detecting section detecting the approach of the conductor to the intersection point.

Abstract translation: 检测导体接近的检测装置包括：传感器部分，包括发射和接收电极，并且检测导体与发送和接收电极相交的交点处的接近; 电压产生部分，其产生交替重复根据第一和第二斜率的电压值的上升和下降的交流电压; 电流产生部，向所述发送电极施加所述交流电压，以在所述接收电极中，在所述交变电压的电压值上升或下降的同时，根据所述第一或第二斜率产生具有均匀电流值的交流电流; 信号生成部，其生成以与所述交点和所述导体之间的距离为基准的振幅振动的检测信号; 以及检测部，检测导体对交点的接近。

公开(公告)号：US08963880B2

公开(公告)日：2015-02-24

申请号：US13722531

申请日：2012-12-20

Applicant: Japan Display West, Inc.

Inventor： Toshihiko Tanaka

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: A detection device that detects the approach of a conductor includes: a sensor section including transmission and reception electrodes, and detecting the approach of the conductor to an intersection point where the transmission and reception electrodes intersect with each other; a voltage generating section generating an alternating voltage in which a rise and a fall of a voltage value according to first and second slopes are alternately repeated; a current generating section applying the alternating voltage to the transmission electrode to generate, in the reception electrode, an alternating current having a uniform current value according to the first or second slope while the voltage value of the alternating voltage is rising or falling; a signal generating section generating a detection signal vibrating with an amplitude according to a distance between the intersection point and the conductor; and a detecting section detecting the approach of the conductor to the intersection point.

Abstract translation: 检测导体接近的检测装置包括：传感器部分，包括发射和接收电极，并且检测导体与发送和接收电极相交的交点处的接近; 电压产生部分，其产生交替重复根据第一和第二斜率的电压值的上升和下降的交流电压; 电流产生部，向所述发送电极施加所述交流电压，以在所述接收电极中，在所述交变电压的电压值上升或下降的同时，根据所述第一或第二斜率产生具有均匀电流值的交流电流; 信号生成部，其生成以与所述交点和所述导体之间的距离为基准的振幅振动的检测信号; 以及检测部，检测导体对交点的接近。

公开(公告)号：US20130229444A1

公开(公告)日：2013-09-05

申请号：US13741920

申请日：2013-01-15

Applicant: JAPAN DISPLAY WEST INC.

Inventor： Yasuyuki Teranishi ,  Takayuki Nakanishi ,  Toshihiko Tanaka ,  Hayato Kurasawa

IPC: G09G5/10

CPC classification number: G09G3/2077 ,  G09G3/2022 ,  G09G3/2074 ,  G09G3/3648 ,  G09G5/10 ,  G09G2300/0857 ,  G09G2310/04 ,  G09G2340/0435

Abstract: A display device in which pixels having a memory function are arranged includes a driving unit that performs display driving in a driving method that obtains a middle gradation by temporally changing gradation of each of the pixels in one period in which a plurality of frames are assumed, wherein the driving unit is configured to discontinuously write lower bits and higher bits of gradation data with respect to the pixels in a scanning direction in a unit of one line or a plurality of lines.

公开(公告)号：US20140362319A1

公开(公告)日：2014-12-11

申请号：US14328269

申请日：2014-07-10

Applicant: Japan Display West, Inc.

Inventor： Yutaka Sano ,  Takashi Kunimori ,  Toshihiko Tanaka ,  Masanori Yasumori

IPC: G02F1/133 ,  G02F1/1335 ,  G02F1/1362 ,  G01J1/42

CPC classification number: G02F1/13318 ,  G01J1/4204 ,  G02F1/1336 ,  G02F1/136209 ,  G02F1/13624 ,  G02F2001/133618 ,  G02F2001/136245 ,  G09G3/3406 ,  G09G3/3648 ,  G09G2360/144

Abstract: An LCD includes a liquid crystal panel having a TFT substrate, a CF substrate, and a liquid crystal layer interposed between the two substrates; a TFT ambient light photosensor having a semiconductor layer for detecting external light; a photodetector unit having a capacitor in which a predetermined reference voltage is charged and a voltage charged by leakage current of the TFT ambient light photosensor is lowered; and an ambient light photosensor reader unit for reading a voltage charged in the capacitor for a predetermined read period. The photodetector unit is disposed on a first surface of the TFT substrate that is in contact with the liquid crystal layer, and the surface of the photodetector unit except for the semiconductor layer and its periphery is covered by a light-shielding layer. Malfunction or reduced sensitivity of an ambient light photosensor due to light from backlights is prevented with a simple structure.

Abstract translation: LCD包括具有TFT基板，CF基板和插入在两个基板之间的液晶层的液晶面板; 具有用于检测外部光的半导体层的TFT环境光电传感器; 具有电容器的光检测器单元，其中预定参考电压被充电，并且TFT环境光光电传感器的漏电流充电的电压降低; 以及环境光光传感器读取单元，用于在预定的读取周期内读出在电容器中充电的电压。 光检测器单元设置在与液晶层接触的TFT基板的第一表面上，除了半导体层及其外围的光检测器单元的表面被遮光层覆盖。 通过简单的结构防止由于来自背光的光引起的环境光传感器的故障或降低的灵敏度。