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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。

3. 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。

4. 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。

5. 发明申请

US20120112047A1 SENSOR CIRCUIT AND DISPLAY APPARATUS 有权
标题翻译：传感器电路和显示设备
公开(公告)号：US20120112047A1
公开(公告)日：2012-05-10
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： G01J1/46 , H01J40/14
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。

6. 发明申请

US20110122111A1 DISPLAY DEVICE 审中-公开
标题翻译：显示设备
公开(公告)号：US20110122111A1
公开(公告)日：2011-05-26
申请号：US12995808
申请日：2009-03-06
申请人： Christopher Brown , Kohei Tanaka , Hiromi Katoh
发明人： Christopher Brown , Kohei Tanaka , Hiromi Katoh
IPC分类号： G09G3/36 , G09G5/00
CPC分类号： G06F3/0412 , G02F1/13338 , H01L27/14603 , H01L27/14623 , H04N1/00129 , H04N5/341 , H04N5/374 , H04N5/3741
摘要： A display device includes a photosensor on an active matrix substrate. The photosensor includes a photodetection element (D1) that receives incident light; reset signal wiring (RST) that supplies a reset signal to the photosensor; readout signal wiring (RWS) that supplies a readout signal to the photosensor; and a sensor switching element (M2) that, in accordance with the readout signal, reads out photocurrent that has been output from the photodetection element (D1) from when the reset signal is supplied until when the readout signal is supplied. The sensor switching element (M2) is a four-terminal amplifier having two control electrodes, such as a double gate TFT or a floating gate TFT.
摘要翻译：显示装置包括在有源矩阵基板上的光电传感器。光传感器包括接收入射光的光检测元件（D1）; 复位信号布线（RST），为复合信号提供给光电传感器; 向光传感器提供读出信号的读出信号线（RWS）; 以及传感器开关元件（M2），其根据读出信号从提供复位信号直到提供读出信号时读出从光电检测元件（D1）输出的光电流。传感器开关元件（M2）是具有两个控制电极的四端子放大器，例如双栅极TFT或浮栅TFT。

7. 发明申请

US20100308212A1 DIODE, PHOTODETECTOR CIRCUIT INCLUDING SAME, AND DISPLAY DEVICE 有权
标题翻译：二极管，光电转换器电路及其显示装置
公开(公告)号：US20100308212A1
公开(公告)日：2010-12-09
申请号：US12867151
申请日：2009-01-14
申请人： Kohei Tanaka , Christopher Brown
发明人： Kohei Tanaka , Christopher Brown
IPC分类号： H01L31/10 , H01L31/103 , G01D7/00
CPC分类号： H01L31/105 , G01J1/1626 , G01J1/46
摘要： Each of even-numbered photodiodes 1 and 2 for constituting a diode of the present invention (i) has regions (regions 1a through 1c and regions 2a through 2c) whose sizes in a certain direction are identical to sizes of regions of a reference diode 5, and (ii) has a channel width equal to ½ of a channel width W of the reference diode 5. The regions 1a through 1c and the regions 2a through 2c are arranged so as to (i) extend parallel to the certain direction which is provided parallel to a channel length L of the reference diode 5, and so as to be (ii) line-symmetric or point-symmetric to each other as a whole. The photodiodes 1 and 2 are electrically connected to each other in series so as to carry out an equivalent operation to that of the reference diode 5. Employing of the photodiodes 1 and 2 provides a configuration of diodes each having an identical characteristic and occupying a reduced area on a substrate.
摘要翻译：用于构成本发明的二极管的偶数个光电二极管1和2（i）具有在一定方向上的尺寸与参考二极管5的区域的尺寸相同的区域（区域1a至1c和区域2a至2c），和（ii）具有等于参考二极管5的通道宽度W的1/2的通道宽度。区域1a至1c和区域2a至2c被布置为（i）平行于某一方向延伸，设置为与参考二极管5的沟道长度L平行，并且（ii）作为整体彼此线对称或点对称。光电二极管1和2彼此串联电连接，以便执行与参考二极管5相同的操作。光电二极管1和2的使用提供二极管的结构，每个二极管具有相同的特性并占据减小的基底上的区域。

8. 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。

9. 发明授权

US08294079B2 Diode, photodetector circuit including same, and display device 有权
标题翻译：二极管，包括其的光检测器电路和显示装置
公开(公告)号：US08294079B2
公开(公告)日：2012-10-23
申请号：US12867151
申请日：2009-01-14
申请人： Kohei Tanaka , Christopher Brown
发明人： Kohei Tanaka , Christopher Brown
IPC分类号： H01L31/10 , H01L27/00
CPC分类号： H01L31/105 , G01J1/1626 , G01J1/46
摘要： Each of even-numbered photodiodes 1 and 2 for constituting a diode of the present invention (i) has regions (regions 1a through 1c and regions 2a through 2c) whose sizes in a certain direction are identical to sizes of regions of a reference diode 5, and (ii) has a channel width equal to ½ of a channel width W of the reference diode 5. The regions 1a through 1c and the regions 2a through 2c are arranged so as to (i) extend parallel to the certain direction which is provided parallel to a channel length L of the reference diode 5, and so as to be (ii) line-symmetric or point-symmetric to each other as a whole. The photodiodes 1 and 2 are electrically connected to each other in series so as to carry out an equivalent operation to that of the reference diode 5. Employing of the photodiodes 1 and 2 provides a configuration of diodes each having an identical characteristic and occupying a reduced area on a substrate.
摘要翻译：用于构成本发明的二极管的偶数个光电二极管1和2（i）具有在一定方向上的尺寸与参考二极管5的区域的尺寸相同的区域（区域1a至1c和区域2a至2c），和（ii）具有等于参考二极管5的通道宽度W的1/2的通道宽度。区域1a至1c和区域2a至2c被布置为（i）平行于某一方向延伸，设置为与参考二极管5的沟道长度L平行，并且（ii）作为整体彼此线对称或点对称。光电二极管1和2彼此串联电连接，以便执行与参考二极管5相同的操作。光电二极管1和2的使用提供二极管的结构，每个二极管具有相同的特性并占据减小的基底上的区域。

10. 发明申请

US20120091321A1 OPTICAL SENSOR AND DISPLAY APPARATUS 有权
标题翻译：光学传感器和显示设备
公开(公告)号：US20120091321A1
公开(公告)日：2012-04-19
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 , G01J1/46
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。

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