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公开(公告)号：US20120037905A1
公开(公告)日：2012-02-16
申请号：US13265766
申请日：2009-11-20
IPC分类号： H01L31/153
CPC分类号： H01L31/101 , G02F1/13318 , G02F1/1362 , G02F2201/58 , G06F3/0412
摘要： A display device of the present invention includes a display panel (101) including a photodiode (17), which generates a current having a magnitude corresponding to an intensity of light incident on the photoelectric conversion element; and, a backlight (108) for irradiating light from behind the photodiode (17) to beyond a front surface of the display panel (101), wherein: the photodiode (17) includes an activating layer made of hydrogenated a-Si; the light source (108) has a peak wavelength within a range from 780 nm or more to 830 nm or less; and the display device further includes a light blocking member (15) for blocking light having a wavelength less than 780 nm, the light blocking member (15) being provided between a front surface of the display panel (101) and the photodiode (17) and over the photodiode (17). With this, the present invention can perform a stable sensing operation under various environments because the display device is configured to reduce the outside-light-caused noise to the optical sensor and the display device is therefore less susceptible to environment surrounding the display device (outside light intensity etc.).A display device of the present invention includes a display panel (101) including a photodiode (17), which generates a current having a magnitude corresponding to an intensity of light incident on the photoelectric conversion element; and, a backlight (108) for irradiating light from behind the photodiode (17) to beyond a front surface of the display panel (101), wherein: the photodiode (17) includes an activating layer made of hydrogenated a-Si; the light source (108) has a peak wavelength within a range from 780 nm or more to 830 nm or less; and the display device further includes a light blocking member (15) for blocking light having a wavelength less than 780 nm, the light blocking member (15) being provided between a front surface of the display panel (101) and the photodiode (17) and over the photodiode (17). With this, the present invention can perform a stable sensing operation under various environments because the display device is configured to reduce the outside-light-caused noise to the optical sensor and the display device is therefore less susceptible to environment surrounding the display device (outside light intensity etc.).
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公开(公告)号：US20120013595A1
公开(公告)日：2012-01-19
申请号：US13259024
申请日：2009-10-27
CPC分类号： G06F3/044 , G02F1/13338 , G02F2001/13312 , G06F3/0412 , G06F3/042 , G06F2203/04106 , G09G3/3648 , H01L31/02019 , H03F3/08
摘要： A display device includes, in a display region, a first circuit including a photodiode (62b), a first capacitor (62c), a second capacitor (62d), and an output amplifier (62a). A cathode of the photodiode (62b), one end of the first capacitor (62c), one end of the second capacitor (62d), and an input of the output amplifier (62a) are connected with one another via a first node (netA). An electrode at the other end of the second capacitor (62d) is provided on a substrate having a display surface of a display panel, and an electrode at the one end of the second capacitor (62d) is positioned to be away from the display surface in a thickness direction of the display panel in such a manner as to face the electrode at the other end of the second capacitor (62d).
摘要翻译： 显示装置在显示区域包括包括光电二极管（62b），第一电容器（62c），第二电容器（62d）和输出放大器（62a）的第一电路。 光电二极管（62b）的阴极，第一电容器（62c）的一端，第二电容器（62d）的一端和输出放大器（62a）的输入端经由第一节点（netA ）。 第二电容器（62d）的另一端的电极设置在具有显示面板的显示面的基板上，第二电容器（62d）的一端的电极位于显示面 在所述显示面板的厚度方向上以与所述第二电容器（62d）的另一端的电极相对的方式。
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公开(公告)号：US20120013574A1
公开(公告)日：2012-01-19
申请号：US13258868
申请日：2009-10-27
CPC分类号： G06F3/042 , G02F1/13338 , G02F2001/13312 , G06F3/0412 , G06F3/0414
摘要： A display device includes: an optical sensor circuit provided in a display region, the optical sensor circuit including a light-receiving element and detecting intensity of light incident to the light-receiving element; and a pressure detection circuit which detects pressure applied to a display surface of a display panel on a basis of a change of the display surface in a panel thickness direction which change is caused by the pressure, with respect to a region in which the pressure is to be detected, both of the detection of the pressure by the pressure detection circuit and the detection of the intensity of the light by the optical sensor circuit being carried out within a period allocated to acquisition of detection data concerning the pressure in the display region.
摘要翻译： 显示装置包括：设置在显示区域的光学传感器电路，所述光学传感器电路包括光接收元件，并检测入射到所述光接收元件的光的强度; 以及压力检测电路，其基于显示面在面板厚度方向上的变化来检测施加到显示面板的显示面上的压力，所述变化是由压力引起的，相对于压力为 要被检测时，通过压力检测电路的压力检测和由光学传感器电路检测光的强度在分配用于获取关于显示区域内的压力的检测数据的时间段内执行。
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公开(公告)号：US08717334B2
公开(公告)日：2014-05-06
申请号：US13258868
申请日：2009-10-27
IPC分类号： G06F3/041
CPC分类号： G06F3/042 , G02F1/13338 , G02F2001/13312 , G06F3/0412 , G06F3/0414
摘要： A display device includes: an optical sensor circuit provided in a display region, the optical sensor circuit including a light-receiving element and detecting intensity of light incident to the light-receiving element; and a pressure detection circuit which detects pressure applied to a display surface of a display panel on a basis of a change of the display surface in a panel thickness direction which change is caused by the pressure, with respect to a region in which the pressure is to be detected, both of the detection of the pressure by the pressure detection circuit and the detection of the intensity of the light by the optical sensor circuit being carried out within a period allocated to acquisition of detection data concerning the pressure in the display region.
摘要翻译： 显示装置包括：设置在显示区域的光学传感器电路，所述光学传感器电路包括光接收元件，并检测入射到所述光接收元件的光的强度; 以及压力检测电路，其基于显示面在面板厚度方向上的变化来检测施加到显示面板的显示面上的压力，所述变化是由压力引起的，相对于压力为 要被检测时，通过压力检测电路的压力检测和由光学传感器电路检测光的强度在分配用于获取关于显示区域内的压力的检测数据的时间段内执行。
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5.发明申请OPTICAL SENSOR CIRCUIT, DISPLAY DEVICE AND METHOD FOR DRIVING OPTICAL SENSOR CIRCUIT 审中-公开光传感器电路，用于驱动光传感器电路的显示装置和方法公开(公告)号：US20120019496A1
公开(公告)日：2012-01-26
申请号：US13258775
申请日：2009-10-27
IPC分类号： G09G5/00 , H01L31/0368 , H01L29/786 , H01L31/0376
CPC分类号： G01J1/46 , G01J1/0209 , G01J1/0228 , G02F1/13338 , G02F2001/13312 , H01L27/12 , H01L27/14612 , H01L27/14692
摘要： A field-effect transistor (62a) has a back gate (62ag2). The back gate (62ag2), a cathode of a photodiode (62b), and a first end of a first capacitor (62c) are connected with each other via a first node (netA). An anode of the photodiode (62b) is connected with a first line (Vrst). A second end of the first capacitor (62c) is connected with a second line (Csn). A gate (62ag1) of the field-effect transistor (62a) is connected with a third line (Vrwn), and a drain of the filed-effect transistor (62a) is connected with a fourth line (Vsm). A source of the field-effect transistor (62a) is an output of an output amplifier (62a).
摘要翻译： 场效应晶体管（62a）具有背栅（62ag2）。 背栅（62ag2），光电二极管（62b）的阴极和第一电容器（62c）的第一端经由第一节点（netA）彼此连接。 光电二极管（62b）的阳极与第一线（Vrst）连接。 第一电容器（62c）的第二端与第二线（Csn）连接。 场效应晶体管（62a）的栅极（62ag1）与第三线（Vrwn）连接，并且场效应晶体管（62a）的漏极与第四线（Vsm）连接。 场效应晶体管（62a）的源极是输出放大器（62a）的输出。
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公开(公告)号：US20120092302A1
公开(公告)日：2012-04-19
申请号：US13379783
申请日：2010-02-26
申请人： Hajime Imai , Takuya Watanabe , Atsuhito Murai , Hideki Kitagawa
发明人： Hajime Imai , Takuya Watanabe , Atsuhito Murai , Hideki Kitagawa
IPC分类号： G06F3/042
CPC分类号： H01L27/1214 , G02F1/13318 , G06F3/0412 , G06F3/042 , G09G3/3225 , G09G2300/0809 , G09G2360/14 , H01L27/12 , H01L27/3269 , H01L31/03682 , H01L31/03762 , H01L31/1136 , Y02E10/546 , Y02E10/548
摘要： It is an object of the present invention to provide a display device equipped with a display panel that is provided with a photo-detection section with improved accuracy of detecting a touch position. A display panel (11) of an organic EL display device (10) includes a photo-detection section (40) that detects reflected light when a screen is touched by a finger or the like. The photo-detection section (40) includes a photodiode (41) that receives the reflected light, and an output amplifier (42) that outputs an output voltage corresponding to the amount of the received light. If an a-Si diode is used for such a photodiode (41), a sufficiently large signal difference in sensitivity between the bright state and the dark state can be achieved. Also, if a p-Si amplifier is used for the output amplifier (42), the output voltage becomes the saturation voltage at the time of read-out. This allows the p-Si amplifier to directly output the large sensitivity difference detected by the a-Si diode as a large difference in the output voltage.
摘要翻译： 本发明的目的是提供一种配备有显示面板的显示装置，该显示面板具有提高检测触摸位置的精度的光检测部。 有机EL显示装置（10）的显示面板（11）具有检测手指等触摸屏幕时的反射光的光检测部（40）。 光检测部分（40）包括接收反射光的光电二极管（41）和输出与接收光量对应的输出电压的输出放大器（42）。 如果对这种光电二极管（41）使用a-Si二极管，则可以实现明亮状态和暗态之间的足够大的灵敏度信号差。 此外，如果使用p-Si放大器作为输出放大器（42），则输出电压成为读出时的饱和电压。 这允许p-Si放大器直接输出由a-Si二极管检测的大的灵敏度差，作为输出电压的大差异。
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公开(公告)号：US08749528B2
公开(公告)日：2014-06-10
申请号：US13379783
申请日：2010-02-26
申请人： Hajime Imai , Takuya Watanabe , Atsuhito Murai , Hideki Kitagawa
发明人： Hajime Imai , Takuya Watanabe , Atsuhito Murai , Hideki Kitagawa
IPC分类号： G06F3/042
CPC分类号： H01L27/1214 , G02F1/13318 , G06F3/0412 , G06F3/042 , G09G3/3225 , G09G2300/0809 , G09G2360/14 , H01L27/12 , H01L27/3269 , H01L31/03682 , H01L31/03762 , H01L31/1136 , Y02E10/546 , Y02E10/548
摘要： A display panel of an organic EL display device includes a photo-detection section that detects reflected light when a screen is touched by a finger or the like. The photo-detection section includes a photodiode that receives the reflected light, and an output amplifier that outputs an output voltage corresponding to the amount of the received light. If an a-Si diode is used for such a photodiode, a sufficiently large signal difference between the bright state and the dark state can be achieved. Also, if a p-Si amplifier is used for the output amplifier, the output voltage becomes the saturation voltage at the time of read-out. This allows the p-Si amplifier to directly output the large difference detected by the a-Si diode as a large difference in the output voltage.
摘要翻译： 有机EL显示装置的显示面板包括：光检测部，其通过手指等触摸屏幕时检测反射光。 光检测部分包括接收反射光的光电二极管和输出与接收光量对应的输出电压的输出放大器。 如果对这种光电二极管使用a-Si二极管，则可以实现明亮状态和黑暗状态之间足够大的信号差。 另外，如果使用p-Si放大器作为输出放大器，则输出电压成为读出时的饱和电压。 这允许p-Si放大器直接输出由a-Si二极管检测的大的差异作为输出电压的大差异。
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8.发明申请OPTICAL SENSOR CIRCUIT, TWO-DIMENSIONAL COORDINATE DETECTION APPARATUS, INFORMATION PROCESSING APPARATUS, AND METHOD OF REFRESH-DRIVING OPTICAL SENSOR ELEMENT 审中-公开光传感器电路，二维坐标检测装置，信息处理装置以及刷新光传感器元件的方法公开(公告)号：US20120250033A1
公开(公告)日：2012-10-04
申请号：US13512946
申请日：2010-11-05
申请人： Hideki Kitagawa , Takuya Watanabe , Hajime Imai , Yukihiko Nishiyama , Atsuhito Murai , Kazunori Morimoto
发明人： Hideki Kitagawa , Takuya Watanabe , Hajime Imai , Yukihiko Nishiyama , Atsuhito Murai , Kazunori Morimoto
IPC分类号： G01B11/14
CPC分类号： G06F3/0428
摘要： An optical sensor circuit in accordance with the present invention detects, based on a change in the amount of light received when a pointer (P) is placed in a coordinate detection area (2) through which light from a light source (3) passes, coordinates of a position of the pointer (3) in the coordinate detection area (2). A first optical sensor circuit including an optical sensor element (41), which receives a larger amount of light due to its position relative to the light source (3), has a first wire to which a refresh signal (Shield_A) is supplied, the refresh signal (Shield_A) initializing a threshold characteristic that determines light sensitivity of the optical sensor element (41); whereas a second optical sensor circuit including an optical sensor element (42), which receives a smaller amount of light, has a second wire to which a refresh signal (Shield_B) is supplied independently of the refresh signal (Shield_A), the refresh signal (Shield_B) initializing a threshold characteristic of the optical element (42).
摘要翻译： 根据本发明的光学传感器电路基于当将指示器（P）放置在来自光源（3）的光通过的坐标检测区域（2）中时接收的光量的变化来检测， 坐标检测区域（2）中的指针（3）的位置的坐标。 包括由于其相对于光源（3）的位置而接收更大量的光的光学传感器元件（41）的第一光学传感器电路具有提供刷新信号（Shield_A）的第一布线， 刷新信号（Shield_A）初始化确定光学传感器元件（41）的光灵敏度的阈值特性; 而包括接收较少光量的光学传感器元件（42）的第二光学传感器电路具有第二导线，独立于刷新信号（Shield_A）提供刷新信号（Shield_B），刷新信号（Shield_A），刷新信号 Shield_B）初始化光学元件（42）的阈值特性。
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公开(公告)号：US08716709B2
公开(公告)日：2014-05-06
申请号：US13701117
申请日：2011-05-18
IPC分类号： G01N27/414 , H01L23/64 , H01L31/08
CPC分类号： G01N27/4141 , G02F1/133 , G02F1/13306 , H01L2924/0002 , H01L2924/00
摘要： The present invention provides an inexpensive display device that includes an ion sensor portion and a display and that can be miniaturized. The present invention is a display device that includes an ion sensor portion including an ion sensor circuit and a display including a display-driving circuit. The display device has a substrate, and at least one portion of the ion sensor circuit and at least one portion of the display-driving circuit are formed on the same main surface of the substrate.
摘要翻译： 本发明提供了一种廉价的显示装置，其包括离子传感器部分和显示器，并且可以小型化。 本发明是包括离子传感器部分的离子传感器部分和包括显示驱动电路的显示器的显示装置。 显示装置具有基板，离子传感器电路的至少一部分和显示驱动电路的至少一部分形成在基板的同一主面上。
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公开(公告)号：US20130240746A1
公开(公告)日：2013-09-19
申请号：US13701123
申请日：2011-05-18
IPC分类号： G01T1/24
CPC分类号： G01T1/24 , G01N27/4148
摘要： The present invention provides an ion sensor and a display device which are capable of detecting positive ions and negative ions with high precision, at low cost. The ion sensor includes: a field effect transistor; an ion sensor antenna; and a capacitor, the ion sensor antenna and one terminal of the capacitor connected to a gate electrode of the field effect transistor, the other terminal of the capacitor receiving voltage.
摘要翻译： 本发明提供了能够以低成本高精度地检测正离子和负离子的离子传感器和显示装置。 离子传感器包括：场效应晶体管; 离子传感器天线; 和电容器，离子传感器天线和电容器的一端连接到场效应晶体管的栅电极，电容器的另一端接受电压。
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