公开(公告)号：US08772699B2

公开(公告)日：2014-07-08

申请号：US13254422

申请日：2010-01-07

申请人： Christopher Brown ,  Kohei Tanaka ,  Hiromi Katoh

发明人： Christopher Brown ,  Kohei Tanaka ,  Hiromi Katoh

IPC分类号： H03F3/08 ,  G06F3/038

CPC分类号： G06F3/0412 ,  G02F1/13338 ,  G02F2001/13312 ,  G06F3/042 ,  G09G3/3648

摘要： The present invention relates to a display device including a photosensor in a pixel region. The photosensor of the present invention includes a diode (D1) that receives incident light, reset signal wiring (RST) that supplies a reset signal, readout signal wiring (RWS) that supplies a readout signal, a storage node (INT) whose potential changes 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, an amplification element (C1) that amplifies the potential of the storage node in accordance with the readout signal, and a sensor switching element (M2) for reading out the potential amplified by the amplification element to output wiring (OUT) as sensor circuit output.

摘要翻译： 本发明涉及包括像素区域中的光电传感器的显示装置。 本发明的光传感器包括接收入射光的二极管（D1），提供复位信号的复位信号布线（RST），提供读出信号的读出信号布线（RWS），其电位变化的存储节点（INT） 根据在检测周期中由光检测元件接收的光量，检测周期是从提供复位信号直到提供读出信号时的放大元件（C1）放大存储节点的电位 以及用于读出由放大元件放大的电位以输出布线（OUT）作为传感器电路输出的传感器开关元件（M2）。

公开(公告)号：US08654266B2

公开(公告)日：2014-02-18

申请号：US13203687

申请日：2009-10-16

申请人： Hiromi Katoh ,  Kohei Tanaka ,  Christopher Brown

发明人： Hiromi Katoh ,  Kohei Tanaka ,  Christopher Brown

IPC分类号： G02F1/1335

CPC分类号： G01V8/20 ,  G01J1/06 ,  G01J1/32 ,  G01J1/44 ,  G02F1/13338 ,  G02F2001/13312 ,  G06F3/0412 ,  G06F3/042 ,  H04N5/361 ,  H04N5/3745

摘要： An optical sensor is provided with a photodiode (D1) which receives light in a first range, including light to be detected, and a photodiode (D2) which receives light in a second range other than the light to be detected. For instance, the photodiode (D1) receives light at all the incident angles, and the photodiode (D2) has a light blocking film on an incident light path so as to selectively receive only the incident light from the oblique directions. The differential between the output from the photodiode (D1) and that from the photodiode (D2) is read out as sensor output.

摘要翻译： 光学传感器设置有光接收器（D1），该光电二极管（D1）接收包括要检测的光在内的第一范围的光，以及在除被检测光之外的第二范围内接收光的光电二极管（D2）。 例如，光电二极管（D1）以所有入射角接收光，并且光电二极管（D2）在入射光路上具有遮光膜，以便仅选择性地仅接收来自倾斜方向的入射光。 读出来自光电二极管（D1）的输出与光电二极管（D2）的输出之间的差分作为传感器输出。

公开(公告)号：US20130218240A1

公开(公告)日：2013-08-22

申请号：US13401183

申请日：2012-02-21

申请人： Xiao-fan FENG ,  Hiromi KATOH

发明人： Xiao-fan FENG ,  Hiromi KATOH

IPC分类号： A61N5/06

CPC分类号： A61N5/0618 ,  A61M21/00 ,  A61M2021/0044 ,  A61M2205/3306 ,  A61M2230/06 ,  A61M2230/42 ,  A61M2230/50 ,  A61M2230/63 ,  A61N2005/0663 ,  H05B37/0218 ,  H05B37/0227 ,  Y02B20/46 ,  A61M2230/005

摘要： A system for influencing a state of a user includes a light source for emitting light influencing the state of the user. The system includes a light controller selectively controlling the emission of the light and an analysis engine which provides a signal to the light controller indicating a desired emission of the light. The system selectively directs blue light from the light source onto a material that retransmits it as a light different than blue light.

摘要翻译： 用于影响用户状态的系统包括用于发射影响用户状态的光的光源。 该系统包括选择性地控制光的发射的光控制器和分析引擎，该分析引擎向光控制器提供指示期望的光发射的信号。 系统选择性地将来自光源的蓝光引导到作为不同于蓝光的光重新发射的材料。

公开(公告)号：US20130112880A1

公开(公告)日：2013-05-09

申请号：US13810482

申请日：2011-07-22

申请人： Hiromi Katoh ,  Naru Usukura

发明人： Hiromi Katoh ,  Naru Usukura

IPC分类号： G01J5/10

CPC分类号： G06F3/0412 ,  G06F3/042

摘要： A photosensor-equipped display device is provided having a combination of visible and non-visible light sources where a voltage drop is minimized when the non-visible light sources are turned on. The display device includes: a plurality of infrared LEDs (3b); photosensors (9) provided in a pixel region (4) for detecting reflected light originating from the infrared LEDs (3b); a sensor row driver circuit (7) configured to supply a sensor drive signal to the photosensors (9); an amplifier circuit (6) configured to amplify a signal read from the photosensors (9) in response to the sensor drive signal and output a photosensor signal; a signal processing circuit (20) configured to process the photosensor signal output from the amplifier circuit (6); and a backlight control circuit (13) configured to control on and off of the infrared LEDs (3b). The plurality of photosensors (9) are divided into a plurality of sensor groups in the pixel region (4). The light source control circuit (13) causes separate sets of infrared LEDs (3b), corresponding to the sensor groups, to be on during different time periods.

摘要翻译： 提供了一种具有光电传感器的显示装置，其具有可见光和不可见光源的组合，其中当不可见光源被接通时电压降最小化。 显示装置包括：多个红外LED（3b）; 设置在用于检测来自红外LED（3b）的反射光的像素区域（4）中的光传感器（9）; 传感器行驱动电路（7），被配置为向光电传感器（9）提供传感器驱动信号; 放大器电路（6），被配置为响应于所述传感器驱动信号放大从所述光电传感器（9）读取的信号并输出​​光传感器信号; 信号处理电路（20），被配置为处理从放大器电路（6）输出的光电传感器信号; 以及被配置为控制所述红外LED（3b）的开和关的背光控制电路（13）。 多个光电传感器（9）在像素区域（4）中分成多个传感器组。 光源控制电路（13）使不同时间段内对应于传感器组的分开的一组红外LED（3b）导通。

公开(公告)号：US08427463B2

公开(公告)日：2013-04-23

申请号：US12594995

申请日：2008-04-09

申请人： Hiromi Katoh ,  Kazuhiro Maeda ,  Christopher Brown

发明人： Hiromi Katoh ,  Kazuhiro Maeda ,  Christopher Brown

IPC分类号： G09G5/00

CPC分类号： G09G3/3648 ,  G02F1/13338 ,  G02F2001/13312 ,  G09G3/3614 ,  G09G2310/0251

摘要： A liquid crystal display device having an image input function capable of suppressing the degradation of image quality of a display image and a captured image caused by a parasitic capacitance is provided. The liquid crystal display device, which includes an active matrix substrate (1), a counter substrate (2), and a liquid crystal layer and performs inversion driving, includes a photodetection part provided on the matrix substrate (1) for each or at least two of the active elements, and a sensor drive part (5). The photodetection part includes a photodiode and a capacitance storing charge, and outputs a photodetective signal VSOUT whose level changes in accordance with the amount of the stored charge. The sensor drive part (5) outputs, to the photodetection part, a reset signal that resets the charge in the capacitance and a reading signal that causes the photodetection part to output a photodetective signal during a period in which the polarity is set to be a predetermined one, and a current supplied to the active elements does not vary after the completion of the inversion of the polarity.

摘要翻译： 提供具有能够抑制显示图像的图像质量劣化的图像输入功能和由寄生电容引起的拍摄图像的液晶显示装置。 包括有源矩阵基板（1），对置基板（2）和液晶层并进行反转驱动的液晶显示装置包括：每个或至少设置在矩阵基板（1）上的光检测部 两个有源元件，以及传感器驱动部件（5）。 光检测部分包括光电二极管和电容存储电荷，并输出其电平根据所存储的电荷量而变化的光电检测信号VSOUT。 传感器驱动部（5）向光检测部输出复位信号，复位信号使电容中的电荷复位，以及读取信号，使得光检测部在极性被设定为 提供给有源元件的电流在极性反转完成后不变化。

公开(公告)号：US20120287085A1

公开(公告)日：2012-11-15

申请号：US13519616

申请日：2010-10-22

申请人： Ryuzo Yuki ,  Naru Usukura ,  Hiromi Katoh

发明人： Ryuzo Yuki ,  Naru Usukura ,  Hiromi Katoh

IPC分类号： G06F3/042

CPC分类号： G06F3/0412 ,  G06F3/0416 ,  G06F3/042 ,  G09G3/3406 ,  G09G3/3648 ,  G09G2310/0237 ,  G09G2310/061

摘要： A liquid crystal display device is provided with a liquid crystal panel 20 including a plurality of optical sensors, a white backlight 31, and an infrared backlight 32. The infrared backlight 32 is turned on and off with predetermined timings. One part of the optical sensors detect light at the time of turn-on of the infrared backlight 32, and the other part of the optical sensors detect light at the time of turn-off of the infrared backlight 32. One part of the optical sensors is specified as operating optical sensors. A drive circuit of the liquid crystal panel 20 includes a black insertion unit 11, and drives the liquid crystal panel 20 so as to partially perform black display corresponding to the operating optical sensors. This widens an effective region of the optical sensor included in the display device.

摘要翻译： 液晶显示装置设置有包括多个光学传感器，白色背光源31和红外线背光源32的液晶面板20.红外线背光源32以预定的定时被接通和断开。 光传感器的一部分在红外线背光源32的接通时检测光，另一部分的光学传感器在红外线背光源32的关断时检测光。一部分光学传感器 被指定为操作光学传感器。 液晶面板20的驱动电路包括黑色插入单元11，并且驱动液晶面板20，以部分地执行与操作的光学传感器对应的黑色显示。 这扩大了包括在显示装置中的光学传感器的有效区域。

公开(公告)号：US20120176355A1

公开(公告)日：2012-07-12

申请号：US13497354

申请日：2010-06-08

申请人： Yasuhiro Sugita ,  Kohhei Tanaka ,  Kaoru Yamamoto ,  Hiromi Katoh

发明人： Yasuhiro Sugita ,  Kohhei Tanaka ,  Kaoru Yamamoto ,  Hiromi Katoh

IPC分类号： G09G5/00

CPC分类号： G06F3/0412 ,  G06F3/0416 ,  G06F3/042 ,  G09G3/3406 ,  G09G2360/144 ,  G09G2360/148

摘要： A plurality of first sensor pixel circuits each sensing light during a sensing period when a backlight is turned on and retaining the amount of sensed light otherwise in accordance with a clock signal and a plurality of second sensor pixel circuits each sensing light during a sensing period when the backlight is turned off and retaining the amount of sensed light otherwise in accordance with a clock signal are arranged in a pixel region. The sensor pixel circuits of two types are connected to different output lines, so that a difference between two output signals is obtained at the outside of the sensor pixel circuit. The sensor pixel circuits described above are used for detecting a difference between an amount of light to be incident when the backlight is turned on and an amount of light to be incident when the backlight is turned off.

摘要翻译： 多个第一传感器像素电路，每个在感测时段期间感测光，当背光被接通时，并且在感测时段期间根据时钟信号和多个第二传感器像素电路保持感测光的量，否则每个感测光都感测到光 背光源被关闭，并且保持根据时钟信号的感测光量保持在像素区域中。 两种类型的传感器像素电路连接到不同的输出线，从而在传感器像素电路的外部获得两个输出信号之间的差异。 上述传感器像素电路用于检测当背光被接通时要入射的光量与当背光被关闭时入射的光量之间的差异。

公开(公告)号：US08110887B2

公开(公告)日：2012-02-07

申请号：US12602395

申请日：2008-06-12

申请人： Christopher Brown ,  Hiromi Katoh

发明人： Christopher Brown ,  Hiromi Katoh

IPC分类号： H01L31/102

CPC分类号： H01L31/02165 ,  G02F1/13318 ,  G02F1/1362 ,  G02F1/136209 ,  G02F2001/13312 ,  H01L31/02164 ,  H01L31/035281 ,  H01L31/105 ,  Y02E10/50

摘要： Provided are a photodetector capable of suppressing variations in the output characteristics among photodiodes, and a display device provided with the photodetector. A display device in use has an active matrix substrate (20) including a transparency base substrate (2), a plurality of active elements and a photodetector. The photodetector includes a light-shielding layer (3) provided on the base substrate (2), and a photodiode (1) arranged on an upper layer of the light-shielding layer (3). The light-shielding layer (3) is overlapped with the photodiode (1) in the thickness direction of the base substrate (2). The photodiode (1) includes a silicon layer (11) insulated electrically from the light-shielding layer (3). The silicon layer (11) includes a p-layer (11c), an i-layer (11b) and an n-layer (11a) that are provided adjacent to each other in the planar direction. The p-layer (11c) is formed so that its area (length Lp) will be larger than the area (length Ln) of the n-layer (11a).

摘要翻译： 提供一种能够抑制光电二极管之间的输出特性的变化的光检测器和具有该光检测器的显示装置。 使用的显示装置具有包括透明性基板（2），多个有源元件和光电检测器的有源矩阵基板（20）。 光电检测器包括设置在基底基板（2）上的遮光层（3）和布置在遮光层（3）的上层上的光电二极管（1）。 遮光层（3）在基底（2）的厚度方向与光电二极管（1）重叠。 光电二极管（1）包括与遮光层（3）电绝缘的硅层（11）。 硅层（11）包括在平面方向上彼此相邻设置的p层（11c），i层（11b）和n层（11a）。 形成p层（11c），使得其面积（长度Lp）将大于n层（11a）的面积（长度Ln）。

公开(公告)号：US20120002149A1

公开(公告)日：2012-01-05

申请号：US13203687

申请日：2009-10-16

申请人： Hiromi Katoh ,  Kohei Tanaka ,  Christopher Brown

发明人： Hiromi Katoh ,  Kohei Tanaka ,  Christopher Brown

IPC分类号： G02F1/1343 ,  G01J5/10 ,  G01J1/42

CPC分类号： G01V8/20 ,  G01J1/06 ,  G01J1/32 ,  G01J1/44 ,  G02F1/13338 ,  G02F2001/13312 ,  G06F3/0412 ,  G06F3/042 ,  H04N5/361 ,  H04N5/3745

摘要： An optical sensor is provided with a photodiode (D1) which receives light in a first range, including light to be detected, and a photodiode (D2) which receives light in a second range other than the light to be detected. For instance, the photodiode (D1) receives light at all the incident angles, and the photodiode (D2) has a light blocking film on an incident light path so as to selectively receive only the incident light from the oblique directions. The differential between the output from the photodiode (D1) and that from the photodiode (D2) is read out as sensor output.

摘要翻译： 光学传感器设置有光接收器（D1），该光电二极管（D1）接收包括要检测的光在内的第一范围的光，以及在除被检测光之外的第二范围内接收光的光电二极管（D2）。 例如，光电二极管（D1）以所有入射角接收光，并且光电二极管（D2）在入射光路上具有遮光膜，以便仅选择性地仅接收来自倾斜方向的入射光。 读出来自光电二极管（D1）的输出与光电二极管（D2）的输出之间的差分作为传感器输出。

公开(公告)号：US08013955B2

公开(公告)日：2011-09-06

申请号：US12444901

申请日：2007-06-19

申请人： Hiromi Katoh ,  Christopher Brown

发明人： Hiromi Katoh ,  Christopher Brown

IPC分类号： G02F1/1335

CPC分类号： G02F1/13338 ,  G02F1/133514 ,  G02F2001/13312

摘要： A liquid crystal display is provided that can achieve an improvement in sensitivity of a photodiode disposed within a display region of an active matrix substrate. To this end, a liquid crystal display is used that includes: an active matrix substrate 1 in which a plurality of pixels are arranged in matrix form; and a counter substrate in which a color filter is provided. In the liquid crystal display, the active matrix substrate 1 includes a photodiode 11 within a display region, and the color filter includes colored areas 6a to 6c that are in one-to-one correspondence with sub-pixels 5a to 5c that constitute a pixel. Each of the colored areas 6a to 6c includes a high-transmittance portion 31 having a transmittance higher than a transmittance of a periphery of the high-transmittance portion 31. Of these colored areas 6a to 6c, the colored area 6a is formed so that the high-transmittance portion 31 positionally coincides with an i layer 13 (light detection region) of the photodiode 11 in a thickness direction of the liquid crystal display.

摘要翻译： 提供一种液晶显示器，其可以实现设置在有源矩阵基板的显示区域内的光电二极管的灵敏度的提高。 为此，使用液晶显示器，其包括：以矩阵形式布置多个像素的有源矩阵基板1; 以及设置有滤色器的对置基板。 在液晶显示器中，有源矩阵基板1在显示区域内包括光电二极管11，并且滤色器包括与构成像素的子像素5a至5c一一对应的着色区域6a至6c 。 每个着色区域6a至6c包括具有高于高透光率部分31的周边的透射率的透射率的高透射率部分31.在这些着色区域6a至6c中，形成着色区域6a， 高透光率部31与液晶显示器的厚度方向的光电二极管11的i层13（光检测区域）位置重合。