公开(公告)号：US09235291B2

公开(公告)日：2016-01-12

申请号：US13517987

申请日：2010-11-15

申请人： Atsushi Okada ,  Kazuhiro Maeda ,  Ichiroh Shiraki

发明人： Atsushi Okada ,  Kazuhiro Maeda ,  Ichiroh Shiraki

IPC分类号： G06F3/038 ,  G06F3/042 ,  G06F1/32 ,  G06F3/041 ,  G09G3/36

CPC分类号： G06F3/042 ,  G06F1/3203 ,  G06F3/0412 ,  G06F3/0416 ,  G09G3/3648 ,  G09G2310/04 ,  G09G2330/022 ,  G09G2360/144

摘要： In a display device with optical sensors, a mode control portion (24) determines a mode to be a normal mode in which to operate a recognition processing portion (22) or a standby mode in which to stop the recognition processing portion (22) from operating. In transition from the normal mode to the standby mode, a decimated image memory (25) stores a decimated image having a smaller number of pixels than a scan picture. The mode control portion (24) performs pixel-by-pixel comparison between the stored decimated image and an image supplied anew, which is obtained by averaging decimated images for two consecutive frames, and causes transition from the standby mode to the normal mode when the number of pixels whose difference in pixel values is greater than or equal to a first threshold is greater than or equal to a second threshold. As a result, it is rendered possible to inhibit erroneous determination and promptly detect a touch position after a quick exit from the standby mode.

摘要翻译： 在具有光学传感器的显示装置中，模式控制部分（24）确定将操作识别处理部分（22）的正常模式或将停止识别处理部分（22）的待机模式 操作。 在从正常模式到待机模式的转变中，抽取图像存储器（25）存储具有比扫描图像少的像素数量的抽取图像。 模式控制部分（24）在存储的抽取图像和重新提供的图像之间进行逐像素比较，该图像是通过对两个连续的帧的抽取图像进行平均而获得的，并且当从该待机模式转换到正常模式时 像素值的差异大于或等于第一阈值的像素数目大于或等于第二阈值。 结果，可以在快速退出待机模式之后抑制错误的确定并且迅速地检测到触摸位置。

公开(公告)号：US20120256883A1

公开(公告)日：2012-10-11

申请号：US13517987

申请日：2010-11-15

申请人： Atsushi Okada ,  Kazuhiro Maeda ,  Ichiroh Shiraki

发明人： Atsushi Okada ,  Kazuhiro Maeda ,  Ichiroh Shiraki

IPC分类号： G06F3/042

CPC分类号： G06F3/042 ,  G06F1/3203 ,  G06F3/0412 ,  G06F3/0416 ,  G09G3/3648 ,  G09G2310/04 ,  G09G2330/022 ,  G09G2360/144

摘要： In a display device with optical sensors, a mode control portion (24) determines a mode to be a normal mode in which to operate a recognition processing portion (22) or a standby mode in which to stop the recognition processing portion (22) from operating. In transition from the normal mode to the standby mode, a decimated image memory (25) stores a decimated image having a smaller number of pixels than a scan picture. The mode control portion (24) performs pixel-by-pixel comparison between the stored decimated image and an image supplied anew, which is obtained by averaging decimated images for two consecutive frames, and causes transition from the standby mode to the normal mode when the number of pixels whose difference in pixel values is greater than or equal to a first threshold is greater than or equal to a second threshold. As a result, it is rendered possible to inhibit erroneous determination and promptly detect a touch position after a quick exit from the standby mode.

摘要翻译： 在具有光学传感器的显示装置中，模式控制部分（24）确定将操作识别处理部分（22）的正常模式或将停止识别处理部分（22）的待机模式 操作。 在从正常模式到待机模式的转变中，抽取图像存储器（25）存储具有比扫描图像少的像素数量的抽取图像。 模式控制部分（24）在存储的抽取图像和重新提供的图像之间进行逐像素比较，该图像是通过对两个连续的帧的抽取图像进行平均而获得的，并且当从待机模式转换到正常模式时 像素值的差异大于或等于第一阈值的像素数大于或等于第二阈值。 结果，可以在快速退出待机模式之后抑制错误的确定并且迅速地检测到触摸位置。

公开(公告)号：US20120154354A1

公开(公告)日：2012-06-21

申请号：US13391654

申请日：2010-07-12

申请人： Sachio Tsujino ,  Yousuke Nakagawa ,  Kazuhiro Maeda ,  Ichiroh Shiraki ,  Hiroaki Sugiyama ,  Nobuhiro Kuwabara

发明人： Sachio Tsujino ,  Yousuke Nakagawa ,  Kazuhiro Maeda ,  Ichiroh Shiraki ,  Hiroaki Sugiyama ,  Nobuhiro Kuwabara

IPC分类号： G09G5/02 ,  G01J1/46

CPC分类号： H01L27/14643 ,  G06F3/0412 ,  G06F3/042 ,  H04N5/357

摘要： By reducing the potential drop of a storage node that occurs due to feedthrough, the capacitance of a storage capacitor is reduced and sensor sensitivity is improved. In a photosensor, the first terminal of a storage capacitor (C2) and the gate of a MOS transistor (M1), which outputs a signal in accordance with the potential of a storage node (N2), are connected to the storage node (N2). A forward biased pulse voltage is supplied to the anode of a first photodiode (DS) in a reset period, and a reverse biased voltage is supplied to the anode of the first photodiode in a storage period and a readout period. A reverse biased voltage is supplied to the anode of a second photodiode (DM) in all operation periods. A voltage that keeps the potential of the storage node lower than the threshold value of the MOS transistor (M1) is supplied to the second terminal of the storage capacitor in the reset period and the storage period, and a voltage that thrusts the potential of the storage node (N2) upward to the threshold value of the MOS transistor (M1) or higher is supplied to the second terminal of the storage capacitor in the readout period.

摘要翻译： 通过减少由于馈通而发生的存储节点的潜在下降，存储电容器的电容降低并且传感器灵敏度得到改善。 在光电传感器中，根据存储节点（N2）的电位输出信号的存储电容器（C2）的第一端子和MOS晶体管（M1）的栅极连接到存储节点（N2 ）。 在复位周期中将正向偏置脉冲电压提供给第一光电二极管（DS）的阳极，并且在存储周期和读出周期中向第一光电二极管的阳极提供反向偏置电压。 在所有操作周期中，向第二光电二极管（DM）的阳极提供反向偏置电压。 在复位期间和保存期间，保持存储节点的电位低于MOS晶体管（M1）的阈值的电压被提供给存储电容器的第二端子，并且将电压 存储节点（N2）向上升到MOS晶体管（M1）或更高的阈值，在读出期间提供给存储电容器的第二端。

公开(公告)号：US20120313913A1

公开(公告)日：2012-12-13

申请号：US13581208

申请日：2010-11-24

申请人： Ichiroh Shiraki ,  Kazuhiro Maeda ,  Sachio Tsujino ,  Hiroaki Sugiyama ,  Yousuke Nakagawa

发明人： Ichiroh Shiraki ,  Kazuhiro Maeda ,  Sachio Tsujino ,  Hiroaki Sugiyama ,  Yousuke Nakagawa

IPC分类号： G09G5/00

CPC分类号： G06K9/0004 ,  G06F3/0412 ,  G06K9/00013 ,  G09G3/3648 ,  G09G2300/0426 ,  G09G2360/144 ,  G09G2360/147

摘要： Detection signals of respective photo sensor circuits (senS, senD, senON, and senOFF) are activated so as to be output at once for each group of prescribed plural number of sensor rows (LSk) by a row driver (6). Within the prescribed number of sensor rows (LSk), photo sensor circuits (senS, senD, senON, and senOFF) sharing the same power line (SL2, SL5, . . . ) between at least two different sensor rows (LSk) are included. The detection signals of the respective photo sensor circuits (senS, senD, senON, and senOFF) in the prescribed number of sensor rows (senS, senD, senON, and senOFF) are output via mutually different output lines (SL1/SL3, SL4/SL6, . . . ).

摘要翻译： 各光电传感器电路（senS，senD，senON，senOFF）的检测信号被激活，以便通过行驱动器（6）为每组规定的多个传感器行（LSk）一次输出。 在规定数量的传感器行（LSk）内，包括在至少两个不同传感器行（LSk）之间共享同一电力线（SL2，SL5 ...）的光电传感器电路（senS，senD，senON和senOFF） 。 在规定数量的传感器列（senS，senD，senON和senOFF）中的各个光电传感器电路（senS，senD，senON和senOFF）的检测信号通过相互不同的输出线（SL1 / SL3，SL4 / SL6，...）。

公开(公告)号：US08780101B2

公开(公告)日：2014-07-15

申请号：US13391654

申请日：2010-07-12

申请人： Sachio Tsujino ,  Yousuke Nakagawa ,  Kazuhiro Maeda ,  Ichiroh Shiraki ,  Hiroaki Sugiyama ,  Nobuhiro Kuwabara

发明人： Sachio Tsujino ,  Yousuke Nakagawa ,  Kazuhiro Maeda ,  Ichiroh Shiraki ,  Hiroaki Sugiyama ,  Nobuhiro Kuwabara

IPC分类号： G09G5/00

CPC分类号： H01L27/14643 ,  G06F3/0412 ,  G06F3/042 ,  H04N5/357

摘要： By reducing the potential drop of a storage node that occurs due to feedthrough, the capacitance of a storage capacitor is reduced and sensor sensitivity is improved. In a photosensor, the first terminal of a storage capacitor (C2) and the gate of a MOS transistor (M1), which outputs a signal in accordance with the potential of a storage node (N2), are connected to the storage node (N2). A forward biased pulse voltage is supplied to the anode of a first photodiode (DS) in a reset period, and a reverse biased voltage is supplied to the anode of the first photodiode in a storage period and a readout period. A reverse biased voltage is supplied to the anode of a second photodiode (DM) in all operation periods. A voltage that keeps the potential of the storage node lower than the threshold value of the MOS transistor (M1) is supplied to the second terminal of the storage capacitor in the reset period and the storage period, and a voltage that thrusts the potential of the storage node (N2) upward to the threshold value of the MOS transistor (M1) or higher is supplied to the second terminal of the storage capacitor in the readout period.

摘要翻译： 通过减少由于馈通而发生的存储节点的潜在下降，存储电容器的电容降低并且传感器灵敏度得到改善。 在光电传感器中，根据存储节点（N2）的电位输出信号的存储电容器（C2）的第一端子和MOS晶体管（M1）的栅极连接到存储节点（N2 ）。 在复位周期中将正向偏置脉冲电压提供给第一光电二极管（DS）的阳极，并且在存储周期和读出周期中向第一光电二极管的阳极提供反向偏置电压。 在所有操作周期中，向第二光电二极管（DM）的阳极提供反向偏置电压。 在复位期间和保存期间，保持存储节点的电位低于MOS晶体管（M1）的阈值的电压被提供给存储电容器的第二端子，并且将电压 存储节点（N2）向上升到MOS晶体管（M1）或更高的阈值，在读出期间提供给存储电容器的第二端。

公开(公告)号：US20130162602A1

公开(公告)日：2013-06-27

申请号：US13810214

申请日：2011-04-25

申请人： Yousuke Nakagawa ,  Kazuhiro Maeda ,  Sachio Tsujino ,  Hiroaki Sugiyama ,  Ichiroh Shiraki

发明人： Yousuke Nakagawa ,  Kazuhiro Maeda ,  Sachio Tsujino ,  Hiroaki Sugiyama ,  Ichiroh Shiraki

IPC分类号： G06F3/042

CPC分类号： H01L27/14601 ,  G06F3/0412 ,  G06F3/042 ,  G09G3/3406 ,  G09G3/3648

摘要： A plurality of sensor circuits each including an optical sensor and a charge retention transistor each provided between a reset line and an accumulation node are arranged in a pixel region of a display device. In a sensing period, a LOW-level voltage is applied as a reset cancellation voltage to the reset line RSTa, and a HIGH-level voltage is applied to a control line CLKa to control the charge retention transistor to be in an ON state. In a period other than the sensing period, the LOW-level voltage is applied to the control line CLKa to control the charge retention transistor to be in an OFF state, and the HIGH-level voltage is applied as a retention voltage to the reset line RSTa. Thus, a drain-source voltage Vds of the charge retention transistor is lowered, a leakage current through the charge retention transistor is reduced, and a light detection accuracy is enhanced. A substantially middle voltage between a reset voltage and a voltage at an accumulation node at the sensing of a maximum amount of light may be used as the retention voltage.

摘要翻译： 在显示装置的像素区域中配置有各自包括设置在复位线和累积节点之间的光学传感器和电荷保持晶体管的多个传感器电路。 在感测期间，将低电平电压作为复位消除电压施加到复位线RSTa，并且将高电平电压施加到控制线CLKa以将电荷保持晶体管控制在导通状态。 在感测期间以外的期间，将低电平电压施加到控制线CLKa，以将电荷保持晶体管控制为截止状态，并且将高电平电压作为保持电压施加到复位线 RSTa。 因此，电荷保持晶体管的漏极 - 源极电压Vds降低，通过电荷保持晶体管的漏电流减小，光检测精度提高。 可以使用在检测最大光量时在复位电压和累积节点处的电压之间的实质中等电压作为保持电压。

公开(公告)号：US09069412B2

公开(公告)日：2015-06-30

申请号：US13697876

申请日：2011-05-19

申请人： Kohei Tanaka ,  Yasuhiro Sugita ,  Kazuhiro Maeda ,  Hiroaki Sugiyama

发明人： Kohei Tanaka ,  Yasuhiro Sugita ,  Kazuhiro Maeda ,  Hiroaki Sugiyama

IPC分类号： G06F3/038 ,  G06F3/042 ,  G06F3/041 ,  G09G3/34

CPC分类号： G06F3/042 ,  G06F3/0412 ,  G09G3/3406 ,  G09G2360/145

摘要： Provided is a display device having a photodetecting element in a pixel, and having an input function that is not dependent on light environments. This is a display device having an optical sensor in a pixel region. The optical sensor includes a first sensor pixel circuit that outputs a sensor signal corresponding to electric charges accumulated during an accumulation period in an ON time of a light source for the sensor; and a second sensor pixel circuit that that outputs a sensor signal corresponding to electric charges accumulated during an accumulation period in an OFF time of the light source. A sensor driving circuit for driving the first sensor pixie circuit and the second sensor pixel circuit supplies reset signals (RST1, RST2) to the first sensor pixel circuit and the second sensor pixel circuit, respectively, during vertical flyback periods in pixel display in the pixel region.

摘要翻译： 提供了一种在像素中具有受光元件并具有不依赖于光环境的输入功能的显示装置。 这是在像素区域中具有光学传感器的显示装置。 光传感器包括第一传感器像素电路，其输出对应于在传感器的光源的接通时间期间在累积周期期间累积的电荷的传感器信号; 以及第二传感器像素电路，其输出与在光源的OFF时间期间的累积期间累积的电荷对应的传感器信号。 用于驱动第一传感器像素电路和第二传感器像素电路的传感器驱动电路在像素的像素显示期间的垂直回扫期间分别向第一传感器像素电路和第二传感器像素电路提供复位信号（RST1，RST2） 地区。

公开(公告)号：US20140375622A1

公开(公告)日：2014-12-25

申请号：US14375832

申请日：2012-07-09

申请人： Yousuke Nakagawa ,  Kazuhiro Maeda

发明人： Yousuke Nakagawa ,  Kazuhiro Maeda

IPC分类号： G09G3/36

CPC分类号： G09G3/3674 ,  G09G3/2092 ,  G09G3/3225 ,  G09G3/3614 ,  G09G2310/0224 ,  G09G2320/0219

摘要： A scanning order calculating portion (23) included in a display control circuit (200) determines the order of selecting all rows by repeating the following: the row for which the total amount of potential variation relative to a reference row is the lowest is selected as a subsequent row, and the row having been selected as the subsequent row is used as the next reference row in a similar operation to determine the next row to be set as a subsequent row. A scanning order setting portion (24) controls an address outputting portion (26) such that the scanning signal lines are selected in the determined order, and also controls digital image signals DV outputted by output frame memory (22). Power consumed by driving video signal lines can be reduced by selecting the scanning signal lines in such an order that the total amount of potential variation of the video signal lines becomes smaller.

摘要翻译： 包括在显示控制电路（200）中的扫描顺序计算部分（23）通过重复以下来确定选择所有行的顺序：相对于参考行的电位变化的总量最低的行被选择为 后续行，并且已经被选择作为后续行的行被用作类似操作中的下一个参考行，以确定要设置为后续行的下一行。 扫描顺序设定部（24）控制地址输出部（26），使得以确定的顺序选择扫描信号线，并且还控制由输出帧存储器（22）输出的数字图像信号DV。 可以通过以使得视频信号线的电位变化的总量变得更小的顺序选择扫描信号线来减少驱动视频信号线所消耗的功率。

公开(公告)号：US20140028626A1

公开(公告)日：2014-01-30

申请号：US14110766

申请日：2012-04-09

申请人： Kazuhiro Maeda ,  Yousuke Nakagawa

发明人： Kazuhiro Maeda ,  Yousuke Nakagawa

IPC分类号： G06F3/044

CPC分类号： G06F3/044 ,  G06F3/0416 ,  G06F2203/04111 ,  G06F2203/04112

摘要： The touch panel (1a) of the present invention includes a plurality of driver electrodes (2), a plurality of detection electrodes (3) that extend in the column direction, and a complementary electrode (4), which extends in the direction in which the driver electrodes extend, and which forms a parasitic capacitance that corresponds to capacitance components that are not affected during detection of an object to be detected that comes into contact with or approaches the detection surface among the parasitic capacitances formed in the gaps between the driver electrodes (2) and the detection electrodes (3), in the gap from the detection electrodes (3).

摘要翻译： 本发明的触摸面板（1a）包括多个驱动电极（2），沿列方向延伸的多个检测电极（3）和互补电极（4），其在 驱动器电极延伸并且形成寄生电容，该寄生电容对应于检测待检测对象的电容分量，所述电容分量在形成在驱动电极之间的间隙中的寄生电容中接触或接近检测表面 （2）和检测电极（3）的距离。

公开(公告)号：US08593443B2

公开(公告)日：2013-11-26

申请号：US13061545

申请日：2009-07-07

申请人： Kazuhiro Maeda ,  Ichiro Shiraki ,  Hiroaki Sugiyama

发明人： Kazuhiro Maeda ,  Ichiro Shiraki ,  Hiroaki Sugiyama

IPC分类号： G06F3/038

CPC分类号： G06F3/0412 ,  G02F2001/13312 ,  G09G3/3648 ,  G09G3/3688 ,  G09G2360/144 ,  G09G2360/148

摘要： A display device includes a photosensor (81) in a pixel region (1) of an active matrix substrate (100). The photosensor (81) includes a photodetection element, reset signal wiring that supplies a reset signal RS to the photosensor (81), readout signal wiring that supplies a readout signal RW to the photosensor (81), and a sensor switching element for reading out the potential of the storage node to output wiring as sensor circuit output, the potential of the storage node having changed in accordance with the amount of light received by the photodetection element in a sensing period, the sensing period being from when the reset signal is supplied until when the readout signal is supplied. The potential of wiring having a parasitic capacitance with the storage node is fixed to a predetermined potential V0 at least either one of immediately before the readout signal RW and immediately before the reset signal RS.

摘要翻译： 显示装置包括在有源矩阵基板（100）的像素区域（1）中的光电传感器（81）。 光传感器（81）包括光检测元件，向光传感器（81）提供复位信号RS的复位信号布线，向光电传感器（81）提供读出信号RW的读出信号布线和用于读出的传感器开关元件 存储节点输出布线作为传感器电路输出的电位，存储节点的电位根据在感测周期中由光电检测元件接收的光量而改变，感测周期是从复位信号提供时 直到提供读出信号为止。 具有与存储节点的寄生电容的布线的电位在紧接在读出信号RW之前和紧接在复位信号RS之前的至少一个中固定到预定电位V0。