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1. 发明申请

WO2008130060A1 STRAY LIGHT COMPENSATION IN AMBIENT LIGHT SENSOR 审中-公开
标题翻译：环境光传感器中的轻度补偿
公开(公告)号：WO2008130060A1
公开(公告)日：2008-10-30
申请号：PCT/JP2008/058161
申请日：2008-04-21
申请人： SHARP KABUSHIKI KAISHA , HADWEN, Benjamin, James , BROWN, Christopher, James , COULSON, Michael, Paul , ZEBEDEE, Patrick
发明人： HADWEN, Benjamin, James , BROWN, Christopher, James , COULSON, Michael, Paul , ZEBEDEE, Patrick
IPC分类号： H01L31/10 , G02F1/1335
CPC分类号： H01L31/153 , G01J1/4228 , G01J1/44 , G01J1/46 , G01J2001/444 , G01J2001/446 , G02F1/13318 , G02F2001/133626 , H01L31/02164 , H01L31/03682 , H01L31/105
摘要： A method is provided of compensating for stray light in a light sensor having a detection photosensor (7) and a reference photosensor (20), the reference photosensor (7) being for use in compensating for stray light falling on the detection photosensor (20). The method comprises using the reference photosensor (20) at least in part to determine a bias voltage applied to the detection photosensor (7). Based on this method, a display device is provided comprising a backlight and a light sensor for determining an ambient light level with the effects of stray light from the backlight substantially removed, with means provided for controlling the intensity of the backlight in dependence upon the determined ambient light level.
摘要翻译：提供一种补偿具有检测光传感器（7）和参考光电传感器（20）的光传感器中的杂散光的方法，所述参考光传感器（7）用于补偿落在检测光传感器（20）上的杂散光，。该方法包括至少部分地使用参考光传感器（20）来确定施加到检测光传感器（7）的偏置电压。基于该方法，提供一种显示装置，其包括背光和光传感器，用于利用来自背光的杂散光的效果基本上被去除来确定环境光级，具有根据所确定的背景来控制背光的强度的装置环境光级别。

2. 发明申请

WO2009133791A1 PHOTOSENSITIVE STRUCTURE AND APPARATUS INCLUDING SUCH A STRUCTURE 审中-公开
标题翻译：含有这种结构的感光结构和装置
公开(公告)号：WO2009133791A1
公开(公告)日：2009-11-05
申请号：PCT/JP2009/057943
申请日：2009-04-15
申请人： SHARP KABUSHIKI KAISHA , HADWEN, Benjamin, James , COULSON, Michael, Paul
发明人： HADWEN, Benjamin, James , COULSON, Michael, Paul
IPC分类号： H01L31/10
CPC分类号： G02F1/13318 , G02F1/13454 , G02F2201/58 , G09G3/36 , G09G2360/144
摘要： A photosensitive structure comprises a plurality of photosenstivie regions (124) which are electrically in series. A light shading layer comprises a plurality of electrically conductive regions (501) disposed so as to shade the photosensitive regions (124) from light incident on a major surface of the structure. The conductive regions (501) are electrically isolated from each other.
摘要翻译：光敏结构包括电串联的多个照明区域（124）。遮光层包括多个导电区域（501），所述多个导电区域（501）设置成使得光敏区域（124）不会从入射到该结构的主表面上的光线遮蔽。导电区域（501）彼此电隔离。

3. 发明申请

WO2008096892A1 A LIGHT SENSING SYSTEM 审中-公开
标题翻译：感光系统
公开(公告)号：WO2008096892A1
公开(公告)日：2008-08-14
申请号：PCT/JP2008/052379
申请日：2008-02-06
申请人： SHARP KABUSHIKI KAISHA , BROWN, Christopher, James , HADWEN, Benjamin, James
发明人： BROWN, Christopher, James , HADWEN, Benjamin, James
IPC分类号： H01L31/10 , G02F1/133 , G02F1/1368 , H01L27/14
CPC分类号： H01L27/1446 , G02F1/13318 , G02F1/133555 , G02F1/13454 , G02F1/136209 , G09G3/3406 , G09G3/3648 , G09G2360/144 , H01L31/153
摘要： A light sensing system comprises a first light sensor (21'), a second light sensor (21) and a first light shielding material (24) disposed over the first light sensor (21') but not over the second light sensor (21) so as to block ambient light from being incident on the first light sensor (21). A first electrically conductive material (23a) is disposed between the first light shielding layer (24) and the first light sensor and a second electrically conductive material (23b) is disposed over the second light sensor. The second electrically conductive material (23b) is at least partially light-transmissive. Providing the first electrically conductive material (23a) between the first light shielding layer (24) and the first light sensor eliminates any parasitic capacitance that would otherwise be set up by the light shielding layer (24) (which is typically a metallic layer). Providing the second electrically conductive material (23b) over the second light sensor ensures that the two light sensors are as closely electrically matched to one another as possible. Thus, a difference between the output of the first light sensor and the output of the second light sensor may reliably be taken as an indication of the level of ambient light.The first electrically conductive material (23a) and the second electrically conductive material (23b) may be provided by disposing a layer of electrically conductive material, which is at least partially light-transmissive, so as to cover both light sensors.
摘要翻译：光感测系统包括第一光传感器（21'），第二光传感器（21）和设置在第一光传感器（21'）之上但不在第二光传感器（21）上的第一遮光材料（24）以阻止环境光入射到第一光传感器（21）上。第一导电材料（23a）设置在第一遮光层（24）和第一光传感器之间，第二导电材料（23b）设置在第二光传感器上。第二导电材料（23b）至少部分是透光的。在第一遮光层（24）和第一光传感器之间提供第一导电材料（23a）消除了否则由遮光层（通常为金属层）设置的寄生电容。在第二光传感器上提供第二导电材料（23b）确保两个光传感器尽可能彼此紧密地电气匹配。因此，可以可靠地将第一光传感器的输出与第二光传感器的输出之间的差作为环境光的水平的指示。第一导电材料（23a）和第二导电材料（23b））可以通过设置至少部分透光的导电材料层来覆盖两个光传感器来提供。

4. 发明申请

WO2009133829A1 THIN FILM TRANSISTOR AND ACTIVE MATRIX DISPLAY 审中-公开
标题翻译：薄膜晶体管和有源矩阵显示
公开(公告)号：WO2009133829A1
公开(公告)日：2009-11-05
申请号：PCT/JP2009/058219
申请日：2009-04-20
申请人： SHARP KABUSHIKI KAISHA , NICHOLAS, Gareth , HADWEN, Benjamin, James , SHAH, Sunay
发明人： NICHOLAS, Gareth , HADWEN, Benjamin, James , SHAH, Sunay
IPC分类号： H01L29/786
CPC分类号： H01L29/78609 , G02F2201/58 , H01L29/78615
摘要： A thin film transistor is formed in a semi-conductor island on an insulating substrate. The transistor comprises a source (1502) and a drain (1504) of first conductivity type and a channel (1508) of a second opposite conductivity type. The channel is overlapped by one or more insulated gates (1510) and is provided with isolation diodes. Each isolation diode comprises a first region (1506) which is lightly doped and a second region (1512) which is heavily doped and of the second conductivity type. The diodes are not overlapped by the gate (1510). The first and second regions (1506, 1512) extend away from the channel (1508) by less than the length of the adjacent source or drain. The lightly doped region (1506) extends away from the source or drain and the heavily doped region (1512) extends away from the lightly doped region such that the first and second regions (1506, 1512) form a p-n junction with the adjacent source or drain in a direction orthogonal to the main conduction path of the transistor but not parallel to the main conduction path.
摘要翻译：薄膜晶体管形成在绝缘基板上的半导体岛中。晶体管包括第一导电类型的源极（1502）和漏极（1504）和具有第二相反导电类型的沟道（1508）。通道由一个或多个绝缘栅极（1510）重叠，并且设置有隔离二极管。每个隔离二极管包括轻度掺杂的第一区域（1506）和重掺杂的第二导电类型的第二区域（1512）。二极管不与栅极重叠（1510）。第一和第二区域（1506,1512）远离通道（1508）延伸小于相邻源极或漏极的长度。轻掺杂区域（1506）远离源极或漏极延伸，并且重掺杂区域（1512）远离轻掺杂区域延伸，使得第一和第二区域（1506,1512）与相邻源形成pn结，或在与晶体管的主导通路正交的方向上漏极，但不平行于主导通路径。

5. 发明申请

WO2008044749A1 PHOTOSENSOR AND AMBIENT LIGHT SENSOR 审中-公开
标题翻译：光电传感器和环境光传感器
公开(公告)号：WO2008044749A1
公开(公告)日：2008-04-17
申请号：PCT/JP2007/069900
申请日：2007-10-04
申请人： SHARP KABUSHIKI KAISHA , HADWEN, Benjamin, James , BROWN, Christopher, James
发明人： HADWEN, Benjamin, James , BROWN, Christopher, James
IPC分类号： H01L31/10 , G02F1/133
CPC分类号： G01J1/44 , G01J1/1626 , G01J1/4204 , G09G3/3406 , G09G2360/144 , H01L31/105 , H01L31/111
摘要： A method of operating a photosensor comprising: applying a bias voltage to a photosensor (12) comprising n (n > 1) photo-sensitive elements (8) connected in series, and determining the photocurrent in the photosensor (12) at a time when the applied bias voltage across the photosensor maintains the photosensor at or close to the point at which it has the greatest signal-to-noise ratio. This may conveniently be done by determining the current in the photosensor at a time when the applied bias voltage across the photosensor is equal or approximately equal to n x Vbi, where Vbi is the bias voltage about which the current in a single one of the photo-sensitive elements (8), in the dark, changes sign. In an embodiment in which the photo-sensitive elements (8) are photodiodes, the bias voltage Vbi is the "built-in" voltage of the photodiodes. The photocurrent generated when n series-connected photodiodes are illuminated is approximately equal to the photocurrent generated when one photodiode is illuminated. However, the leakage current (i.e., the dark current) for the n series-connected photodiodes is significantly lower than the leakage current for one photodiode. The signal-to-noise-ratio is therefore significantly increased.
摘要翻译：一种操作光传感器的方法，包括：将偏置电压施加到包括串联连接的n（n> 1）个光敏元件（8）的光电传感器（12），并且在光电传感器（12）中确定光电流光电传感器两端施加的偏置电压将光电传感器保持在或接近于具有最大信噪比的点。这可以通过确定光电传感器中的电流在光电传感器上施加的偏置电压等于或近似等于nx Vbi的时间来确定光电传感器的电流，其中Vbi是单个光电传感器中的电流的偏置电压，敏感元素（8），在黑暗中改变迹象。在光敏元件（8）是光电二极管的实施例中，偏置电压Vbi是光电二极管的“内置”电压。当n个串联连接的光电二极管被照亮时产生的光电流近似等于当一个光电二极管被照亮时产生的光电流。然而，n个串联连接的光电二极管的漏电流（即暗电流）明显低于一个光电二极管的漏电流。因此，信噪比显着增加。

6. 发明申请

WO2010024112A1 METHOD OF AND APPARATUS FOR ACQUIRING AN IMAGE 审中-公开
标题翻译：用于获取图像的方法和装置
公开(公告)号：WO2010024112A1
公开(公告)日：2010-03-04
申请号：PCT/JP2009/064096
申请日：2009-08-04
申请人： SHARP KABUSHIKI KAISHA , MONTGOMERY, David James , HADWEN, Benjamin James , SHAH, Sunay , ZEFFER, Tamas
发明人： MONTGOMERY, David James , HADWEN, Benjamin James , SHAH, Sunay , ZEFFER, Tamas
IPC分类号： G02F1/133 , G02F1/13 , G02F1/1333 , G09F9/00
CPC分类号： G06K9/2036 , G06K7/1465
摘要： An apparatus for acquiring an image comprises a display (60), such as an LCD and backlight, for illuminating the object. A photosensor array (61) detects light reflected from the object. A controller (62) causes the display (60) and the photosensor array (61) to: illuminate the object (100); acquire (102) a first image (104) of the object; display a first illuminating pattern (106) for illuminating the object, which first illuminating pattern is derived (108) from the first image; and acquire (102) a second image (110) of the object illuminated by the first illuminating pattern (106). The controller (62) preferably causes the display (60) and the photosensor array (61) to: display a second illuminating pattern (112) for illuminating the object, which second illuminating pattern is derived (108) from at least the second image; and acquire a third image (114) of the object illuminated by the second illuminating pattern (112).
摘要翻译：用于获取图像的装置包括用于照亮对象的诸如LCD和背光的显示器（60）。光电传感器阵列（61）检测从物体反射的光。控制器（62）使显示器（60）和光电传感器阵列（61）照亮对象（100）; 获取（102）所述对象的第一图像（104）; 显示用于照亮所述物体的第一照明图案（106），从所述第一图像导出所述第一照明图案（108）; 并且获取（102）由所述第一照明图案（106）照亮的所述物体的第二图像（110）。控制器（62）优选地使显示器（60）和光电传感器阵列（61）从至少第二图像显示用于照亮对象的第二照明图案（112），该第二照明图案被导出（108）; 并且获取由第二照明图案（112）照亮的物体的第三图像（114）。

7. 发明申请

WO2008152922A1 SOLID STATE ILLUMINATION SYSTEM 审中-公开
标题翻译：固态照明系统
公开(公告)号：WO2008152922A1
公开(公告)日：2008-12-18
申请号：PCT/JP2008/059956
申请日：2008-05-23
申请人： SHARP KABUSHIKI KAISHA , ROSHAN, Rakesh , HADWEN, Benjamin, James , MONTGOMERY, David, James , HEFFERNAN, Jonathan
发明人： ROSHAN, Rakesh , HADWEN, Benjamin, James , MONTGOMERY, David, James , HEFFERNAN, Jonathan
IPC分类号： H05B37/02
CPC分类号： H05B33/0872 , G01J1/32 , G01J1/4204 , G01J3/10 , G01J3/50 , G01J3/505 , H05B33/0857 , H05B33/0869
摘要： An illumination system comprises at least two light sources (101,102,103) having different emission spectra to one another; a detection circuit (131,132,133) for sensing a light intensity using at least one of the light sources as a photosensor; and driving means (161,162,163) for driving the light source in dependence on the sensed spectral distribution of light. The emission spectrum of a light source with the smallest bandgap overlaps the emission spectrum of a light source with the second-smallest bandgap. The illumination system is possible to measure the intensity of light emitted by the light source with the smallest bandgap by putting the light source with the second-smallest bandgap in detection mode. The illumination system may also sense the spectral distribution of ambient light, to allow the output from the illumination system to be adjusted in dependence on the ambient light.
摘要翻译：照明系统包括彼此具有不同发射光谱的至少两个光源（101,102,103）; 用于使用所述光源中的至少一个作为光传感器感测光强度的检测电路（131,132,133）和驱动装置（161,162,163），用于根据检测到的光的光谱分布来驱动光源。具有最小带隙的光源的发射光谱与具有第二小带隙的光源的发射光谱重叠。照明系统可以通过将具有第二小带隙的光源放置在检测模式中来测量具有最小带隙的光源发射的光的强度。照明系统还可以感测环境光的光谱分布，以允许根据环境光来调节来自照明系统的输出。

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