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公开(公告)号：US20070229452A1
公开(公告)日：2007-10-04
申请号：US11730257
申请日：2007-03-30
IPC分类号： G09G3/36
CPC分类号： G02F1/13318 , G01J1/4204 , G02F1/1336 , G02F1/136209 , G02F1/13624 , G02F2001/133618 , G02F2001/136245 , G09G3/3406 , G09G3/3648 , G09G2360/144
摘要： A liquid crystal display (LCD) 1 according to an embodiment of the present invention includes a liquid crystal panel having a TFT substrate 2, a CF substrate 25, and a liquid crystal layer 14 interposed between the two substrates; a TFT ambient light photosensor having a semiconductor layer 19L for detecting external light; a photodetector unit LS1 having a capacitor Cw in which a predetermined reference voltage is charged and a voltage charged by leakage current of the TFT ambient light photosensor is lowered; and an ambient light photosensor reader unit Re1 for reading a voltage charged in the capacitor for a predetermined read period. The photodetector unit is disposed on a first surface of the TFT substrate 2 that is in contact with the liquid crystal layer, and the surface of the photodetector unit except for the semiconductor layer 19L and its periphery is covered by a light-shielding layer 21. It is therefore possible to provide an LCD in which malfunction or reduced sensitivity of its ambient light photosensor due to light from its backlights is prevented with a simple structure.
摘要翻译： 根据本发明实施例的液晶显示器（LCD）1包括具有TFT基板2，CF基板25和插入在两个基板之间的液晶层14的液晶面板; 具有用于检测外部光的半导体层19L的TFT环境光感应器; 具有预定参考电压被充电的电容器Cw和TFT环境光电传感器的漏电流充电的电压的光检测器单元LS 1降低; 以及环境光光电传感器读取单元Re 1，用于在预定的读取周期内读取在电容器中充电的电压。 光检测器单元设置在与液晶层接触的TFT基板2的第一表面上，除了半导体层19L及其周边外的光检测器单元的表面被覆盖 因此可以提供一种LCD，其中以简单的结构防止由于来自其背光的光而导致的环境光传感器的故障或降低的灵敏度。
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公开(公告)号：US08810553B2
公开(公告)日：2014-08-19
申请号：US11730257
申请日：2007-03-30
CPC分类号： G02F1/13318 , G01J1/4204 , G02F1/1336 , G02F1/136209 , G02F1/13624 , G02F2001/133618 , G02F2001/136245 , G09G3/3406 , G09G3/3648 , G09G2360/144
摘要： A liquid crystal display (LCD) 1 according to an embodiment of the present invention includes a liquid crystal panel having a TFT substrate 2, a CF substrate 25, and a liquid crystal layer 14 interposed between the two substrates; a TFT ambient light photosensor having a semiconductor layer 19L for detecting external light; a photodetector unit LS1 having a capacitor Cw in which a predetermined reference voltage is charged and a voltage charged by leakage current of the TFT ambient light photosensor is lowered; and an ambient light photosensor reader unit Re1 for reading a voltage charged in the capacitor for a predetermined read period. The photodetector unit is disposed on a first surface of the TFT substrate 2 that is in contact with the liquid crystal layer, and the surface of the photodetector unit except for the semiconductor layer 19L and its periphery is covered by a light-shielding layer 21. It is therefore possible to provide an LCD in which malfunction or reduced sensitivity of its ambient light photosensor due to light from its backlights is prevented with a simple structure.
摘要翻译： 根据本发明实施例的液晶显示器（LCD）1包括具有TFT基板2，CF基板25和插入在两个基板之间的液晶层14的液晶面板; 具有用于检测外部光的半导体层19L的TFT环境光传感器; 具有预定参考电压被充电的电容器Cw和TFT环境光电传感器的漏电流充电的电压的光检测器单元LS1降低; 以及环境光光传感器读取器单元Re1，用于读取在预定读取周期内在电容器中充电的电压。 光检测器单元设置在与液晶层接触的TFT基板2的第一表面上，除了半导体层19L及其周边之外的光检测器单元的表面被遮光层21覆盖。 因此，可以提供一种LCD，其中以简单的结构防止由于其背光的光而导致的环境光传感器的故障或降低的灵敏度。
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公开(公告)号：US08379005B2
公开(公告)日：2013-02-19
申请号：US11510557
申请日：2006-08-28
CPC分类号： G09G3/3406 , G02F2001/13312 , G09G3/3648 , G09G2300/0426 , G09G2300/0456 , G09G2320/0626 , G09G2360/144
摘要： A liquid crystal display device 1 having a liquid crystal display panel and an illuminating means controlled according to the output of the light sensing component. The light sensing component is deployed at the periphery of the TFT substrate's display area DA and uses a thin film transistor as photosensor. A capacitor C is connected between source and drain electrodes SL, DL for such TFT photosensor. One of the capacitor's terminals is connected to a standard voltage source VS via a switch element SW, and the other to the common electrode 26. Voltage that is always lower than the voltage applied to the common electrode by an amount corresponding to a reverse bias voltage is applied to the gate electrode GL for the TFT photosensor. The capacitor's voltage a certain time after the switch element turns off is output.
摘要翻译： 具有液晶显示面板的液晶显示装置1和根据感光部件的输出控制的照明装置。 光感测部件配置在TFT基板的显示区域DA的周围，并且使用薄膜晶体管作为光电传感器。 电容器C连接在用于这种TFT光电传感器的源极和漏极SL，DL之间。 电容器端子中的一个通过开关元件SW连接到标准电压源VS，另一个连接到公共电极26.电压总是低于施加到公共电极上的电压与反向偏置电压相对应的电压 施加到TFT光电传感器的栅电极GL。 输出开关元件关闭后一定时间内的电容器电压。
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公开(公告)号：US20070188441A1
公开(公告)日：2007-08-16
申请号：US11701498
申请日：2007-02-02
IPC分类号： G09G3/36
CPC分类号： G09G3/3406 , G02F1/13318 , G02F2201/58 , G09G2360/144
摘要： A display 10 according to one embodiment of the invention includes a display panel having an active matrix substrate and a color filter substrate, a lighting unit for the display panel, ambient light photosensors 321 to 326, a controller that controls luminous intensity of the lighting unit based on outputs from the ambient light photosensors 321 to 326, and a spectral sensitivity adjustor provided at a position on the color filter substrate corresponding to the ambient light photosensors 321 to 326 in order to make the spectral sensitivity of the ambient light photosensors 321 to 326 match human visual sensitivity. The spectral sensitivity adjustor may be a color filter or a polarizing filter. The display thus structured automatically and stably controls on/off of its backlights depending on the brightness of the surroundings with a sensitivity corresponding to human visual sensitivity.
摘要翻译： 根据本发明的一个实施例的显示器10包括具有有源矩阵基板和滤色器基板的显示面板，用于显示面板的照明单元，环境光感应器32 1至32 控制器，其基于来自环境光感应器32 1至32 6的输出控制照明单元的发光强度，以及提供的光谱灵敏度调节器 在彩色滤光片基板上对应于环境光光敏元件32 1至32＆lt; 6＆lt; 6＆gt;之间的位置处，以便使环境光光敏元件32 1的光谱灵敏度 至32 匹配人类视觉灵敏度。 光谱灵敏度调节器可以是滤色器或偏振滤光器。 根据周围环境的亮度，自动稳定地显示其背光的开/关的显示，其灵敏度对应于人的视觉灵敏度。
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公开(公告)号：US20070046619A1
公开(公告)日：2007-03-01
申请号：US11510557
申请日：2006-08-28
IPC分类号： G09G3/36
CPC分类号： G09G3/3406 , G02F2001/13312 , G09G3/3648 , G09G2300/0426 , G09G2300/0456 , G09G2320/0626 , G09G2360/144
摘要： A liquid crystal display device 1 of the invention has a liquid crystal display panel in which a liquid crystal layer 14 is provided between a TFT substrate 2 and a CF substrate 25 that has a common electrode 26, a light sensing component LS1 with a TFT photosensor that senses external light, and an illuminating means controlled according to the output of the light sensing component. The light sensing component is deployed at the periphery of the TFT substrate's display area DA and uses a thin film transistor as photosensor. A capacitor C is connected between source and drain electrodes SL, DL for such TFT photosensor. One of the capacitor's terminals is connected to a standard voltage source VS via a switch element SW, and the other to the common electrode 26. Voltage that is always lower than the voltage applied to the common electrode by an amount corresponding to a reverse bias voltage is applied to the gate electrode GL for the TFT photosensor. The capacitor's voltage a certain time after the switch element turns off is output. As a result, it will be possible to provide a liquid crystal display device in which the light sensing component incorporated in the liquid crystal display panel is not susceptible to the influence of the drive signals for the display panel, and in which the light sensing component does not induce deterioration of the liquid crystals.
摘要翻译： 本发明的液晶显示装置1具有液晶显示面板，其中液晶层14设置在TFT基板2和具有公共电极26的CF基板25之间，具有TFT的光感测部件LS 1 感测外部光的光电传感器，以及根据光检测部件的输出控制的照明装置。 光感测部件配置在TFT基板的显示区域DA的周围，并且使用薄膜晶体管作为光电传感器。 对于这种TFT光电传感器，电容器C连接在源电极和漏电极S L L，D L L之间。 电容器的端子中的一个通过开关元件SW连接到标准电压源V SUB，另一个连接到公共电极26.电压总是低于通过公共电极施加到公共电极的电压 将对应于反向偏置电压的量施加到用于TFT光电传感器的栅电极G L L。 输出开关元件关闭后一定时间内的电容器电压。 结果，可以提供一种液晶显示装置，其中结合在液晶显示面板中的感光元件不受显示面板的驱动信号的影响，并且其中感光部件 不会引起液晶的劣化。
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6.发明授权公开(公告)号：US07936346B2
公开(公告)日：2011-05-03
申请号：US11902689
申请日：2007-09-25
申请人： Takashi Kunimori , Yutaka Sano , Masanori Yasumori
发明人： Takashi Kunimori , Yutaka Sano , Masanori Yasumori
IPC分类号： G09G5/00
CPC分类号： G02F1/13318 , G02F1/1362 , G02F2001/133626 , G09G3/3406 , G09G3/3611 , G09G2300/043 , G09G2320/0219 , G09G2330/022
摘要： A liquid crystal display device 1 according to an embodiment of the present invention includes a liquid crystal display panel, a photodetector unit LS1 that is built into the liquid crystal display panel and has a TFT ambient light photosensor, an ambient light photosensor reader Re1 for reading a voltage due to photo-leakage from the TFT ambient light photosensor, and a control means 20 for controlling the photodetector unit and the ambient light photosensor reader, and a backlight 24, etc., according to an output from the ambient light photosensor reader. The photodetector unit has a switching element SW2 coupled between a source line coupled to the TFT ambient light photosensor's source electrode SL and a drain line coupled to the TFT ambient light photosensor's drain electrode DL. The control means 20 makes the source line and the drain line of the TFT ambient light photosensor be coupled to a common potential when changing a gate voltage of the TFT ambient light photosensor by keeping the switching element SW2 turned on. It is therefore possible to provide a liquid crystal display device that utilizes a thin film transistor as an ambient light photosensor and prevents degradation of an ambient light photosensor element due to a biased polarity voltage applied to the gate electrode.
摘要翻译： 根据本发明实施例的液晶显示装置1包括液晶显示面板，内置于液晶显示面板中的具有TFT环境光光电传感器的光检测器单元LS1，用于读取的环境光光电传感器读取器Re1 来自TFT环境光电传感器的光泄漏的电压，以及根据环境光光传感器读取器的输出控制光电检测器单元和环境光光电传感器读取器的控制装置20以及背光源24等。 光电检测器单元具有耦合在耦合到TFT环境光电传感器的源电极SL的源极线和耦合到TFT环境光电传感器的漏电极DL的漏极线之间的开关元件SW2。 当通过保持开关元件SW2导通来改变TFT环境光光电传感器的栅极电压时，控制装置20使TFT环境光传感器的源极线和漏极线耦合到共同的电位。 因此，可以提供一种使用薄膜晶体管作为环境光光电传感器的液晶显示装置，并且防止由于施加到栅电极的偏置极性电压而导致的环境光光电传感元件的劣化。
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公开(公告)号：US20080079860A1
公开(公告)日：2008-04-03
申请号：US11902689
申请日：2007-09-25
申请人： Takashi Kunimori , Yutaka Sano , Masanori Yasumori
发明人： Takashi Kunimori , Yutaka Sano , Masanori Yasumori
IPC分类号： G02F1/13357 , G02F1/1368
CPC分类号： G02F1/13318 , G02F1/1362 , G02F2001/133626 , G09G3/3406 , G09G3/3611 , G09G2300/043 , G09G2320/0219 , G09G2330/022
摘要： A liquid crystal display device 1 according to an embodiment of the present invention includes a liquid crystal display panel, a photodetector unit LS1 that is built into the liquid crystal display panel and has a TFT ambient light photosensor, an ambient light photosensor reader Re1 for reading a voltage due to photo-leakage from the TFT ambient light photosensor, and a control means 20 for controlling the photodetector unit and the ambient light photosensor reader, and a backlight 24, etc., according to an output from the ambient light photosensor reader. The photodetector unit has a switching element SW2 coupled between a source line coupled to the TFT ambient light photosensor's source electrode SL and a drain line coupled to the TFT ambient light photosensor's drain electrode DL. The control means 20 makes the source line and the drain line of the TFT ambient light photosensor be coupled to a common potential when changing a gate voltage of the TFT ambient light photosensor by keeping the switching element SW2 turned on. It is therefore possible to provide a liquid crystal display device that utilizes a thin film transistor as an ambient light photosensor and prevents degradation of an ambient light photosensor element due to a biased polarity voltage applied to the gate electrode.
摘要翻译： 根据本发明的实施例的液晶显示装置1包括液晶显示面板，内置于液晶显示面板中并具有TFT环境光光电传感器的光电检测器单元LS 1，环境光光电传感器读数器Re 1 用于从TFT环境光电传感器读出由于光泄漏引起的电压，以及用于控制光电检测器单元和环境光光电传感器读取器的控制装置20以及根据环境光光电传感器的输出的背光源24等 读者。 光检测器单元具有开关元件SW 2，该开关元件SW 2耦合在耦合到TFT环境光电传感器的源电极S L L的源极线和耦合到TFT环境光电传感器的漏电极D L的漏极线之间 。 控制装置20使TFT环境光光电传感器的源极线和漏极线通过保持开关元件SW 2导通而改变TFT环境光光电传感器的栅极电压而耦合到公共电位。 因此，可以提供一种使用薄膜晶体管作为环境光光电传感器的液晶显示装置，并且防止由于施加到栅电极的偏置极性电压而导致的环境光光电传感元件的劣化。
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公开(公告)号：US20080049004A1
公开(公告)日：2008-02-28
申请号：US11775520
申请日：2007-07-10
IPC分类号： G09G3/36 , G02F1/1335
CPC分类号： G02F1/13318 , G09G2360/144
摘要： A liquid crystal display device of the invention has: a display panel with an active matrix substrate 2 and a second substrate of transparent material deposed opposite that substrate; an illuminating unit that illuminates the display panel; and a photosensing unit that is provided on the active matrix substrate and has an ambient light photosensor that senses external light. The ambient light photosensor is constituted of a thin film transistor. At least the source electrode SL and drain electrode DL of the thin film transistor are covered by a shielding transparent electrode 6, with transparent insulator 3 and 5 interposed. The transparent electrode 6 is electrically connected to the drain electrode DL, and moreover is connected to a power source supplying constant voltage. Thanks to such structure, a display device is provided in which the ambient light photosensor is built into a panel substrate so as not to be affected by external noise and the peripheral circuits.
摘要翻译： 本发明的液晶显示装置具有：具有有源矩阵基板2的显示面板和与该基板相反的透明材料的第二基板; 照明单元，其照亮所述显示面板; 以及光敏单元，其设置在有源矩阵基板上并具有感测外部光的环境光传感器。 环境光电传感器由薄膜晶体管构成。 至少薄膜晶体管的源电极S L L和漏电极D L L被屏蔽透明电极6覆盖，透明绝缘体3和5被插入。 透明电极6与漏电极D L1电连接，此外与提供恒定电压的电源连接。 由于具有这样的结构，所以提供了一种显示装置，其中环境光传感器被内置在面板基板中，以免受到外部噪声和外围电路的影响。
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公开(公告)号：US07852440B2
公开(公告)日：2010-12-14
申请号：US11775520
申请日：2007-07-10
IPC分类号： G02F1/133
CPC分类号： G02F1/13318 , G09G2360/144
摘要： A liquid crystal display device of the invention has: a display panel with an active matrix substrate 2 and a second substrate of transparent material deposed opposite that substrate; an illuminating unit that illuminates the display panel; and a photosensing unit that is provided on the active matrix substrate and has an ambient light photosensor that senses external light. The ambient light photosensor is constituted of a thin film transistor. At least the source electrode SL and drain electrode DL of the thin film transistor are covered by a shielding transparent electrode 6, with transparent insulator 3 and 5 interposed. The transparent electrode 6 is electrically connected to the drain electrode DL, and moreover is connected to a power source supplying constant voltage. Thanks to such structure, a display device is provided in which the ambient light photosensor is built into a panel substrate so as not to be affected by external noise and the peripheral circuits.
摘要翻译： 本发明的液晶显示装置具有：具有有源矩阵基板2的显示面板和与该基板相反的透明材料的第二基板; 照明单元，其照亮所述显示面板; 以及光敏单元，其设置在有源矩阵基板上并具有感测外部光的环境光传感器。 环境光电传感器由薄膜晶体管构成。 至少薄膜晶体管的源电极SL和漏电极DL被屏蔽透明电极6覆盖，透明绝缘体3和5被插入。 透明电极6与漏电极DL电连接，此外与提供恒定电压的电源连接。 由于具有这样的结构，所以提供了一种显示装置，其中环境光传感器被内置在面板基板中，以免受到外部噪声和外围电路的影响。
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10.发明授权Display device having switching elements corresponding to individual pixels and dual ambient light photosensing unit 有权具有与各个像素对应的开关元件和双环境光感光单元的显示装置公开(公告)号：US07589305B2
公开(公告)日：2009-09-15
申请号：US12011909
申请日：2008-01-30
IPC分类号： H01L27/00
CPC分类号： G02F1/13318 , H01L27/12 , H01L31/153
摘要： With the related art, the choice of locations for disposition of ambient light photosensors is narrow, and consequently it is difficult to respond flexibly to user specifications for differing structures of the case. With a display device of the invention however, ambient light photosensors can be disposed laterally and longitudinally, enabling the intensity of light in longitudinal or lateral directions to be sensed at the same levels. Also, bridge-connecting together the longitudinally-disposed ambient light photosensors enables ambient light photosensors to be disposed close to the outer periphery of the display area in both the longitudinal and lateral directions. Thereby, the problems with the related art can be resolved.
摘要翻译： 利用相关技术，用于配置环境光光传感器的位置的选择是狭窄的，因此难以灵活地响应用户不同结构的用户规格。 然而，使用本发明的显示装置，可以横向和纵向地布置环境光光传感器，使得能够以相同的水平感测纵向或横向的光强度。 而且，将纵向设置的环境光光传感器桥连接在一起，使环境光光传感器能够在纵向和横向方向上靠近显示区域的外周设置。 因此，可以解决现有技术的问题。
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