专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08803791B2 Display device 有权
标题翻译：显示设备
公开(公告)号：US08803791B2
公开(公告)日：2014-08-12
申请号：US13511957
申请日：2010-11-30
申请人： Yasuhiro Sugita , Kohei Tanaka , Hiromi Katoh , Christopher Brown
发明人： Yasuhiro Sugita , Kohei Tanaka , Hiromi Katoh , Christopher Brown
IPC分类号： G09G3/36 , G02F1/1362 , G06F3/042 , G06F3/041 , G02F1/133
CPC分类号： G06F3/0412 , G02F1/13624 , G02F2001/13312 , G06F3/042 , G09G3/3648 , G09G2300/0426 , G09G2360/144
摘要： Provided is a display device that includes an optical sensor having a high sensitivity in which a potential difference of an accumulation node due to an illuminance difference on a light receiving surface after boosting is set greater than a potential difference of the same at an end of an integration period. The display device includes an optical sensor in a pixel region. The optical sensor includes a diode D1; a reset signal line RST for supplying a reset signal; a readout signal line RWS for supplying a readout signal; an accumulation node having a potential (VINT) that varies with an amount of light received by the diode D1 during a period from supply of the reset signal to supply of the readout signal; an amplifying element C1 for amplifying VINT according to the readout signal; and a sensor switching element M2 for reading out the amplified potential and outputting the same to an output line. A potential of a light shielding film LS provided on a back side of the diode is fixed to a constant potential VLS satisfying the following formula: VLS≧VRST.H.
摘要翻译：提供一种显示装置，其具有高感光度的光学传感器，其中由于在升压之后的受光面上的照度差引起的累积节点的电位差设定为大于其末端的电位差，整合期显示装置包括像素区域中的光学传感器。光学传感器包括二极管D1; 用于提供复位信号的复位信号线RST; 用于提供读出信号的读出信号线RWS; 累积节点具有在从复位信号的供给到读出信号的供给期间随二极管D1接收的光量而变化的电位（VINT）; 用于根据读出信号放大VINT的放大元件C1; 以及用于读出放大电位并将其输出到输出线的传感器开关元件M2。设置在二极管背面的遮光膜LS的电位固定为满足以下公式的恒定电位VLS：VLS≥VRST.H。

2. 发明申请

US20120261557A1 DISPLAY DEVICE 有权
标题翻译：显示设备
公开(公告)号：US20120261557A1
公开(公告)日：2012-10-18
申请号：US13511957
申请日：2010-11-30
申请人： Yasuhiro Sugita , Kohei Tanaka , Hiromi Katoh , Christopher Brown
发明人： Yasuhiro Sugita , Kohei Tanaka , Hiromi Katoh , Christopher Brown
IPC分类号： H01L31/12
CPC分类号： G06F3/0412 , G02F1/13624 , G02F2001/13312 , G06F3/042 , G09G3/3648 , G09G2300/0426 , G09G2360/144
摘要： Provided is a display device that includes an optical sensor having a high sensitivity in which a potential difference of an accumulation node due to an illuminance difference on a light receiving surface after boosting is set greater than a potential difference of the same at an end of an integration period. The display device includes an optical sensor in a pixel region. The optical sensor includes a diode D1; a reset signal line RST for supplying a reset signal; a readout signal line RWS for supplying a readout signal; an accumulation node having a potential (VINT) that varies with an amount of light received by the diode D1 during a period from supply of the reset signal to supply of the readout signal; an amplifying element C1 for amplifying VINT according to the readout signal; and a sensor switching element M2 for reading out the amplified potential and outputting the same to an output line. A potential of a light shielding film LS provided on a back side of the diode is fixed to a constant potential VLS satisfying the following formula: VLS≧VRST.H.
摘要翻译：提供一种显示装置，其具有高灵敏度的光学传感器，其中由于在升压之后的受光面上的照度差导致的累积节点的电位差被设定为大于其末端的电位差整合期显示装置包括像素区域中的光学传感器。光学传感器包括二极管D1; 用于提供复位信号的复位信号线RST; 用于提供读出信号的读出信号线RWS; 累积节点具有在从复位信号的供给到读出信号的供给期间随二极管D1接收的光量而变化的电位（VINT）; 用于根据读出信号放大VINT的放大元件C1; 以及用于读出放大电位并将其输出到输出线的传感器开关元件M2。设置在二极管背面的遮光膜LS的电位固定为满足以下公式的恒定电位VLS：VLS≥VRST.H。

3. 发明授权

US09001096B2 Display device 有权
标题翻译：显示设备
公开(公告)号：US09001096B2
公开(公告)日：2015-04-07
申请号：US13511967
申请日：2010-11-30
申请人： Yasuhiro Sugita , Kohei Tanaka , Christopher Brown
发明人： Yasuhiro Sugita , Kohei Tanaka , Christopher Brown
IPC分类号： G06F3/038 , G09G5/00 , H01L27/146 , G09G3/36
CPC分类号： H01L27/14609 , G09G3/3648 , G09G2320/0233 , G09G2360/141 , G09G2360/148
摘要： Provided is a display device that has excellent accuracy in image capturing by improving linearity of sensitivity characteristics of a photodiode. An optical sensor provided on an active matrix substrate of the display device includes; a photodiode (D1a) for receiving incident light; a reset signal line (RSTa) for supplying a reset signal RST to the optical sensor; a readout signal line (RWSa) for supplying a readout signal RWS to the optical sensor; and a sensor switching element (M1a) for reading out a photoelectric current output from the photodiode (D1a), according to the readout signal, during a period from the supply of the reset signal to the supply of the readout signal. A potential VLS of a light shielding film (LS) provided on a back side of the photodiode (D1a) is caused to be a high level potential during a period that at least partially overlaps a period while the reset signal is supplied.
摘要翻译：提供了一种通过提高光电二极管的灵敏度特性的线性度而具有优异的图像捕获精度的显示装置。提供在显示装置的有源矩阵基板上的光学传感器包括：用于接收入射光的光电二极管（D1a）复位信号线（RSTa），用于向光学传感器提供复位信号RST; 读出信号线（RWSa），用于向光学传感器提供读出信号RWS; 以及在从复位信号的供给到读出信号的供给期间，根据读出信号，读出从光电二极管（D1a）输出的光电流的传感器开关元件（M1a）。设置在光电二极管（D1a）的背面的遮光膜（LS）的电位VLS在复位信号被提供期间至少部分地与周期重叠的时间段内变为高电平电位。

4. 发明申请

US20120293475A1 DISPLAY DEVICE 有权
标题翻译：显示设备
公开(公告)号：US20120293475A1
公开(公告)日：2012-11-22
申请号：US13511967
申请日：2010-11-30
申请人： Yasuhiro Sugita , Kohei Tanaka , Christopher Brown
发明人： Yasuhiro Sugita , Kohei Tanaka , Christopher Brown
IPC分类号： G09G5/00
CPC分类号： H01L27/14609 , G09G3/3648 , G09G2320/0233 , G09G2360/141 , G09G2360/148
摘要： Provided is a display device that has excellent accuracy in image capturing by improving linearity of sensitivity characteristics of a photodiode. An optical sensor provided on an active matrix substrate of the display device includes; a photodiode (D1a) for receiving incident light; a reset signal line (RSTa) for supplying a reset signal RST to the optical sensor; a readout signal line (RWSa) for supplying a readout signal RWS to the optical sensor; and a sensor switching element (M1a) for reading out a photoelectric current output from the photodiode (D1a), according to the readout signal, during a period from the supply of the reset signal to the supply of the readout signal. A potential VLS of a light shielding film (LS) provided on a back side of the photodiode (D1a) is caused to be a high level potential during a period that at least partially overlaps a period while the reset signal is supplied.
摘要翻译：提供了一种通过提高光电二极管的灵敏度特性的线性度而具有优异的图像捕获精度的显示装置。提供在显示装置的有源矩阵基板上的光学传感器包括：用于接收入射光的光电二极管（D1a）复位信号线（RSTa），用于向光学传感器提供复位信号RST; 读出信号线（RWSa），用于向光学传感器提供读出信号RWS; 以及在从复位信号的供给到读出信号的供给期间，根据读出信号，读出从光电二极管（D1a）输出的光电流的传感器开关元件（M1a）。设置在光电二极管（D1a）的背面的遮光膜（LS）的电位VLS在复位信号被提供期间至少部分地与周期重叠的时间段内变为高电平电位。

5. 发明申请

US20120262424A1 Display Device 审中-公开
标题翻译：显示设备
公开(公告)号：US20120262424A1
公开(公告)日：2012-10-18
申请号：US13497268
申请日：2010-06-08
申请人： Kohhei Tanaka , Yasuhiro Sugita , Kaoru Yamamoto , Christopher Brown
发明人： Kohhei Tanaka , Yasuhiro Sugita , Kaoru Yamamoto , Christopher Brown
IPC分类号： G06F3/042
CPC分类号： G06F3/0412 , G06F3/042 , G09G3/34 , G09G3/3406 , G09G2300/08 , G09G2310/0237 , G09G2360/144 , G09G2360/145
摘要： A plurality of sensor pixel circuits each including two photodiodes, one accumulation node accumulating charge corresponding to an amount of light, and a read transistor having a control terminal connected to the accumulation node are arranged in a pixel region. In accordance with a clock signal, when a backlight is turned on, a transistor turns on, a current flows through the photodiode, and a potential at the accumulation node drops. When the backlight is turned off, a transistor turns on, a current flows through the photodiode, and the potential at the accumulation node rises. Sensitivity characteristics of the two photodiodes may be changed using the clock signal. The sensor pixel circuit described above is 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：每个包括两个光电二极管的多个传感器像素电路，一个累积节点累积对应于光量的电荷，以及具有连接到累积节点的控制端子的读出晶体管被布置在像素区域中。根据时钟信号，当背光源导通时，晶体管导通，电流流过光电二极管，并且累积节点处的电位下降。当背光被关闭时，晶体管导通，电流流过光电二极管，并且累积节点的电位上升。可以使用时钟信号来改变两个光电二极管的灵敏度特性。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。

6. 发明申请

US20120176356A1 DISPLAY DEVICE 审中-公开
标题翻译：显示设备
公开(公告)号：US20120176356A1
公开(公告)日：2012-07-12
申请号：US13497358
申请日：2010-06-08
申请人： Naru Usukura , Hiromi Katoh , Yasuhiro Sugita , Kohhei Tanaka , Kaoru Yamamoto , Christopher Brown
发明人： Naru Usukura , Hiromi Katoh , Yasuhiro Sugita , Kohhei Tanaka , Kaoru Yamamoto , Christopher Brown
IPC分类号： G09G5/00
CPC分类号： G06F3/042 , G06F3/0416 , G09G3/3406 , G09G2360/144
摘要： A plurality of sensor pixel circuits are disclosed for detecting a difference between an amount of light when a backlight is turned on and an amount of light when the backlight is turned off are arranged in a pixel region. The backlight is turned on and off a plurality of times, respectively, in a one-frame period. Each of reset for the sensor pixel circuits and read from the sensor pixel circuits is performed in parallel, each in a line sequential manner over almost the one-frame period. A plurality of sensor pixel circuits of two types for separately detecting an amount of light when the backlight is turned on and an amount of light when the backlight is turned off may be arranged in the pixel region, and a difference circuit may be used for obtaining a difference between the two types of amounts of light.
摘要翻译：公开了多个传感器像素电路，用于检测当背光源导通时的光量与背光源被关闭时的光量之间的差异被布置在像素区域中。背光源分别在一帧周期内分别打开和关闭多次。传感器像素电路的复位和从传感器像素电路读取的每一个在几乎一个帧周期中并行执行，每个以一行的顺序方式执行。可以在像素区域中配置多个用于分别检测背光源导通时的光量和背光源截止时的光量的两种传感器像素电路，差分电路可以用于获得两种光量之间的区别。

7. 发明授权

US08759739B2 Optical sensor and display apparatus 有权
标题翻译：光学传感器和显示装置
公开(公告)号：US08759739B2
公开(公告)日：2014-06-24
申请号：US13377100
申请日：2010-06-15
申请人： Kohei Tanaka , Christopher Brown
发明人： Kohei Tanaka , Christopher Brown
IPC分类号： G01J1/44
CPC分类号： G06F3/0412 , G02F1/13318 , G02F2203/60 , G06F3/042 , G09G3/3648 , G09G2320/041 , G09G2360/144
摘要： Provided are an optical sensor having a wider dynamic range with reduced temperature dependence, and a display apparatus in which these optical sensors are used. An optical sensor includes an accumulation node (INT); a reset signal line (RST); a readout signal line (RWS); a photodiode (D1) (photodetecting element); a photodiode (D2) (reference element) that has a light-shielding layer; a thin-film transistor (M1) (first switching element) that outputs a potential of the accumulation node (INT) in response to the readout signal during a sensing period; and a thin-film transistor (M2) (second switching element) that is provided between the accumulation node (INT) and the photodiode (D2), and that electrically separates the accumulation node (INT) from the photodiode (D2) when the potential of the accumulation node (INT) upon supply of the readout signal is higher than a potential on a side of the photodiode (D2) opposite to the accumulation node (INT).
摘要翻译：提供了具有较低温度依赖性的较宽动态范围的光学传感器，以及使用这些光学传感器的显示装置。光学传感器包括累积节点（INT）; 复位信号线（RST）; 读出信号线（RWS）; 光电二极管（D1）（受光元件）; 具有遮光层的光电二极管（D2）（参考元件）在感测期间响应于读出信号而输出累积节点（INT）的电位的薄膜晶体管（M1）（第一开关元件）以及设置在所述累积节点（INT）和所述光电二极管（D2）之间的电薄膜晶体管（M2）（第二开关元件），并且当所述电位（D2）与所述光电二极管在提供读出信号时，累积节点（INT）的电位高于与累积节点（INT）相反的光电二极管（D2）侧的电位。

8. 发明申请

US20120187455A1 PHOTOSENSOR AND DISPLAY DEVICE 审中-公开
标题翻译：照相机和显示设备
公开(公告)号：US20120187455A1
公开(公告)日：2012-07-26
申请号：US13383382
申请日：2010-07-26
申请人： Christopher Brown , Kohei Tanaka
发明人： Christopher Brown , Kohei Tanaka
IPC分类号： H01L27/148
CPC分类号： H01L31/101 , G01J1/04 , G01J1/0407 , G01J1/46 , G02F1/13318 , H01L27/14609
摘要： The sensitivity of a photosensor is improved without decreasing read-out efficiency. The photosensor includes: a photodiode (D1) that converts received light into an electric current; a light shielding film (LS) that generates a parasitic capacitance between the photodiode (D1) and itself, a control signal line (RWST) that supplies a storage node (INT) with a reset signal and a read-out signal via the photodiode (D1); and a transistor (M2) connected with the storage node (INT) and an output line (OUT) for outputting, to the output line (OUT), an output signal corresponding to the potential of the storage node (INT) in response to the read-out signal.
摘要翻译：提高光传感器的灵敏度，而不会降低读出效率。光电传感器包括：将接收的光转换成电流的光电二极管（D1）; 在所述光电二极管（D1）与其自身之间产生寄生电容的遮光膜（LS），经由所述光电二极管向所述存储节点（INT）提供复位信号和读出信号的控制信号线（RWST） D1）; 以及与存储节点（INT）连接的晶体管（M2）和输出线（OUT），用于响应于存储节点（INT）向输出线（OUT）输出与存储节点（INT）的电位相对应的输出信号读出信号。

9. 发明申请

US20120086671A1 CAPACITANCE VARIATION DETECTION CIRCUIT, AND DISPLAY DEVICE 审中-公开
标题翻译：电容变化检测电路和显示装置
公开(公告)号：US20120086671A1
公开(公告)日：2012-04-12
申请号：US13378934
申请日：2010-06-11
申请人： Christopher Brown , Hiromi Katoh , Kohei Tanaka
发明人： Christopher Brown , Hiromi Katoh , Kohei Tanaka
IPC分类号： G06F3/045
CPC分类号： G06F3/0412 , G06F3/044
摘要： A capacitance variation detection circuit is provided in which detection sensitivity to variations in the liquid crystal capacitance can be improved. A capacitance variation detection circuit (10) includes a first variable capacitance portion (CLC1) connected to the voltage supply line; a second variable capacitance portion (CLC2) connected in series with the first variable capacitance portion (CLC1); and a TFT (15) connected to the second variable capacitance portion (CLC2) to be driven depending on the capacitance value of the first variable capacitance (CLC1) and the capacitance value of the second variable capacitance (CLC2), to output an electrical signal corresponding to these capacitance values.
摘要翻译：提供一种电容变化检测电路，其中可以提高对液晶电容变化的检测灵敏度。电容变化检测电路（10）包括与电压供给线连接的第一可变电容部（CLC1）与第一可变电容部分（CLC1）串联连接的第二可变电容部分（CLC2）; 以及根据第一可变电容（CLC1）的电容值和第二可变电容（CLC2）的电容值而驱动的第二可变电容部分（CLC2）的TFT（15），以输出电信号对应于这些电容值。

10. 发明授权

US08658957B2 Sensor circuit and display apparatus 有权
标题翻译：传感器电路和显示装置
公开(公告)号：US08658957B2
公开(公告)日：2014-02-25
申请号：US13381291
申请日：2010-06-23
申请人： Christopher Brown , Hiromi Katoh , Kohei Tanaka
发明人： Christopher Brown , Hiromi Katoh , Kohei Tanaka
IPC分类号： H01L27/00
CPC分类号： H01L31/101 , G02F1/13318 , G02F1/13338 , G06F3/0412 , G06F3/044 , G09G2360/142 , G09G2360/144 , H01L27/1446
摘要： A sensor circuit or a display apparatus from which a highly accurate sensor output can be obtained includes a photodiode, a capacitor that is connected to the photodiode via an accumulation node and accumulates charges according to an electric current in the photodiode; a sensor switching element transistor that causes the accumulation node and an output line to be conductive with respect to each other in response to a readout signal and outputs an output signal according to the potential of the accumulation node to the output line; a variable capacitor that is provided between the accumulation node and an input electrode, and whose capacitance varies when a pressure is applied by a touching operation; and a control switching element transistor to which a control signal for switching conduction and non-conduction between the variable capacitor and the accumulation node is input.
摘要翻译：可以从其获得高精度传感器输出的传感器电路或显示装置包括光电二极管，经由累积节点连接到光电二极管的电容器，并根据光电二极管中的电流累积电荷; 传感器开关元件晶体管，其响应于读出信号使所述累积节点和输出线相对于彼此导电，并且根据所述累积节点的电位将输出信号输出到所述输出线; 设置在所述蓄积节点和输入电极之间的可变电容器，并且当通过触摸操作施加压力时，其电容变化; 以及输入用于切换可变电容器和累积节点之间的导通和非导通的控制信号的控制开关元件晶体管。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式