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：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：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：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：US20110149174A1

公开(公告)日：2011-06-23

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： H04N5/66 ,  G09G5/00

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。

公开(公告)号：US20110181568A1

公开(公告)日：2011-07-28

申请号：US13120428

申请日：2009-06-09

申请人： Hiroaki Sugiyama ,  Kazuhiro Maeda ,  Ichiro Shiraki

发明人： Hiroaki Sugiyama ,  Kazuhiro Maeda ,  Ichiro Shiraki

IPC分类号： G06F3/038

CPC分类号： G09G3/3648 ,  G02F1/13318 ,  G02F1/1354 ,  G02F1/136286 ,  G02F2001/13312 ,  G06F3/0412 ,  G06F3/042

摘要： Outside provision of first row lines (CS(1) and CS(2)) is identical between a first picture element row (R1) and a second picture element row (R2) of each picture element row pair (20) in terms of whether each first row line is provided, with respect to picture element electrodes (ER(1), EG(1), EB(1), ER(2), EG(2), and EB(2)), so as to be closer to a photosensor circuit (SC) or farther from the photosensor circuit (SC).

摘要翻译： 第一行线（CS（1）和CS（2））的外部设置在每个像素行对（20）的第一图像元素行（R1）和第二图像元素行（R2）之间是否相同 相对于图像元素电极（ER（1），EG（1），EB（1），ER（2），EG（2）和EB（2））提供每个第一行线，以便 更靠近光电传感器电路（SC）或离光电传感器电路（SC）更远。

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：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。

公开(公告)号：US20130057528A1

公开(公告)日：2013-03-07

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

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：US20110157116A1

公开(公告)日：2011-06-30

申请号：US13059161

申请日：2009-06-09

申请人： Ichiro Shiraki ,  Kazuhiro Maeda ,  Hiroaki Sugiyama

发明人： Ichiro Shiraki ,  Kazuhiro Maeda ,  Hiroaki Sugiyama

IPC分类号： G06F3/038

CPC分类号： G09G3/3648 ,  G09G2320/0233 ,  G09G2360/145 ,  H01L31/145

摘要： Provided is a display device including a sensor row driver (6) which sequentially outputs a read-out signal (RW) for causing each pair of picture element area groups, which includes both a first picture element area (PIX1) and a second picture element area (PIX2) as detection picture element areas and is made up of two picture element rows, to simultaneously output a photodetection signal of each of the first picture element areas (PIX1) and a dark current detection signal of each of the second picture element areas (PIX2). In each pair of the picture element area groups, outputs of the detection picture element areas are connected to different output lines (RSL1, RSL2).

摘要翻译： 提供了一种显示装置，其包括传感器行驱动器（6），其顺序地输出用于使每对图像元素区域组的读出信号（RW），其包括第一图像元素区域（PIX1）和第二图像元素 区域（PIX2）作为检测图像元素区域，并且由两个图像元素行构成，以同时输出第一像素区域（PIX1）中的每一个的每个的第一像素区域和第二像素区域的暗电流检测信号 （PIX2）。 在每对像素区域组中，检测像素区域的输出连接到不同的输出线（RSL1，RSL2）。