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1. 发明授权

US08334853B2 Light sensor circuit and driving method thereof and touch screen panel having the same 有权
标题翻译：光传感器电路及其驱动方法和具有该光传感器电路的触摸屏面板
公开(公告)号：US08334853B2
公开(公告)日：2012-12-18
申请号：US12662987
申请日：2010-05-14
申请人： Do-Youb Kim , Yong-Sung Park , Deok-Young Choi , Soon-Sung Ahn , In-Ho Choi , Tae-Jin Kim , Joo-Hyeon Jeong , Brent Jang , Ki-Ju Im
发明人： Do-Youb Kim , Yong-Sung Park , Deok-Young Choi , Soon-Sung Ahn , In-Ho Choi , Tae-Jin Kim , Joo-Hyeon Jeong , Brent Jang , Ki-Ju Im
IPC分类号： G06F3/042
CPC分类号： G06F3/0412 , G02F1/13338 , G06F3/042 , H01L27/14643
摘要： A light sensor circuit, includes a light receiving element coupled to a first power supply, a capacitor coupled between the light receiving element and a second power supply, a first transistor including a gate electrode coupled to a first electrode of the capacitor, and a second transistor including a gate electrode coupled to a selection signal line, wherein the first transistor is coupled between the selection signal line and a first electrode of the second transistor, and the second transistor is coupled between a second electrode of the first transistor and an output signal line.
摘要翻译：一种光传感器电路，包括耦合到第一电源的光接收元件，耦合在光接收元件和第二电源之间的电容器，包括耦合到电容器的第一电极的栅电极的第一晶体管，晶体管，其包括耦合到选择信号线的栅电极，其中所述第一晶体管耦合在所述选择信号线和所述第二晶体管的第一电极之间，并且所述第二晶体管耦合在所述第一晶体管的第二电极和输出信号线。

2. 发明申请

US20110233387A1 Light sensor circuit and driving method thereof 失效
标题翻译：光传感器电路及其驱动方法
公开(公告)号：US20110233387A1
公开(公告)日：2011-09-29
申请号：US13064115
申请日：2011-03-07
申请人： Do-Youb Kim , Yong-Sung Park , Tae-Jin Kim , Deok-Young Choi , Joo-Hyeon Jeong , Soon-Sung Ahn , In-Ho Choi , Brent Jang , Ki-Ju Im
发明人： Do-Youb Kim , Yong-Sung Park , Tae-Jin Kim , Deok-Young Choi , Joo-Hyeon Jeong , Soon-Sung Ahn , In-Ho Choi , Brent Jang , Ki-Ju Im
IPC分类号： G01J1/46
CPC分类号： G01J1/46
摘要： Embodiments provide a light sensor circuit for a flat panel display which improves resolution at low luminance and increases the range of sensible ambient light by divisionally driving a frame period, in which light is sensed, into a plurality of sub-frames, and a method of driving the light sensor circuit.
摘要翻译：实施例提供了一种用于平板显示器的光传感器电路，其提高了低亮度下的分辨率，并且通过将感测到光的帧周期分割为多个子帧而增加了感性环境光的范围，以及一种方法驱动光传感器电路。

3. 发明授权

US08704812B2 Light sensing circuit having a controlled light sensing period or a controlled current output period according to ambient temperature, method of controlling the same, and touch panel comprising the light sensing circuit 有权
标题翻译：具有根据环境温度的受控光感测周期或受控电流输出周期的光感测电路，其控制方法和包括光感测电路的触摸面板
公开(公告)号：US08704812B2
公开(公告)日：2014-04-22
申请号：US12612241
申请日：2009-11-04
申请人： Deok-Young Choi , Yong-Sung Park , Do-Youb Kim , Soon-Sung Ahn , In-Ho Choi
发明人： Deok-Young Choi , Yong-Sung Park , Do-Youb Kim , Soon-Sung Ahn , In-Ho Choi
IPC分类号： G06F3/038 , G09G5/00
CPC分类号： G01J1/44 , G01J1/02 , G01J1/0252 , G06F3/042
摘要： A light sensing circuit, a method of controlling the same, and a touch panel including the light sensing circuit. In the method of controlling the light sensing circuit, including sensing light incident on a photodiode, generating current corresponding to the brightness of the sensed light, amplifying the current using a driving transistor, and outputting the amplified current, the ambient temperature is sensed, and a time period during which the light is sensed by the photodiode or the amplified current is output is controlled by the sensed ambient temperature. Thus, the sensitivity of the light sensing circuit may be constantly maintained without being influenced by the ambient temperature.
摘要翻译：光感测电路，其控制方法和包括光感测电路的触摸面板。在控制光感测电路的方法中，包括感测入射在光电二极管上的光，产生对应于感测光的亮度的电流，使用驱动晶体管放大电流，并输出放大的电流，感测环境温度，由光电二极管或放大电流感测光的时间段由感测到的环境温度控制。因此，光感测电路的灵敏度可以不受环境温度的影响而恒定地保持。

4. 发明申请

US20100012823A1 TOUCH PANEL DRIVING CIRCUIT REMOVING CURRENT DUE TO HEAT OF FINGER AND TOUCH PANEL COMPRISING THE SAME 有权
标题翻译：触控面板驱动电路由于手指和包括其的触控面板的热而移除电流
公开(公告)号：US20100012823A1
公开(公告)日：2010-01-21
申请号：US12502167
申请日：2009-07-13
申请人： Soon-Sung Ahn , Yong-Sung Park , Do-Youb Kim , Deok-Young Choi , In-Ho Choi
发明人： Soon-Sung Ahn , Yong-Sung Park , Do-Youb Kim , Deok-Young Choi , In-Ho Choi
IPC分类号： H01J40/14
CPC分类号： G06F3/042
摘要： Provided is a driving circuit of a photosensing touch panel including: a first photodiode coupled between a first voltage source and a sensing node and for generating a first current in accordance with a brightness of an external incident light and a heat of a finger; a second photodiode coupled between the sensing node and a second voltage source and for generating a second current in accordance with the heat of the finger, the second photodiode being shielded from the external incident light; and an amplifier circuit for detecting the brightness of the external incident light regardless of the heat of the finger by subtracting the second current from the first current at the sensing node.
摘要翻译：提供了一种感光触摸面板的驱动电路，包括：耦合在第一电压源和感测节点之间的第一光电二极管，用于根据外部入射光的亮度和手指的热量产生第一电流; 第二光电二极管，耦合在所述感测节点和第二电压源之间，并且用于根据所述手指的热量产生第二电流，所述第二光电二极管屏蔽所述外部入射光; 以及放大器电路，用于通过从感测节点处的第一电流减去第二电流来检测外部入射光的亮度，而不管手指的热量。

5. 发明授权

US08289298B2 Light sensing circuit, method of driving the same, and touch panel including the light sensing circuit 有权
标题翻译：光感测电路，驱动电路的方法以及包括光感测电路的触摸面板
公开(公告)号：US08289298B2
公开(公告)日：2012-10-16
申请号：US12568931
申请日：2009-09-29
申请人： Deok-Young Choi , Yong-Sung Park , Do-Youb Kim , Soon-Sung Ahn , In-Ho Choi
发明人： Deok-Young Choi , Yong-Sung Park , Do-Youb Kim , Soon-Sung Ahn , In-Ho Choi
IPC分类号： G06F3/042
CPC分类号： G06F3/0412 , G06F3/042
摘要： A light sensing circuit, a method of driving the same, and a touch panel including the light sensing circuit, the light sensing circuit including a photodiode generating current according to the brightness of light incident from the outside; a driving transistor having a first electrode to which a first power voltage is applied, a second electrode, and a gate electrode electrically connected to a cathode of the photodiode; a first reset transistor having a first electrode to which an initialization voltage is applied, a second electrode connected to the gate electrode of the driving transistor, and a gate electrode to which a previous scan signal is applied; and a shielding capacitor disposed between the gate electrode of the driving transistor and the cathode of the photodiode. Accordingly, the brightness of light incident on the photodiode can be accurately determined by initializing the cathode of the photodiode by using a constant voltage.
摘要翻译：光感测电路，其驱动方法以及包括光感测电路的触摸面板，所述光感测电路包括根据从外部入射的光的亮度产生电流的光电二极管; 具有施加有第一电源电压的第一电极的驱动晶体管，与所述光电二极管的阴极电连接的第二电极和栅电极; 第一复位晶体管，具有施加初始化电压的第一电极，连接到驱动晶体管的栅电极的第二电极和施加了先前扫描信号的栅电极; 以及设置在驱动晶体管的栅电极和光电二极管的阴极之间的屏蔽电容器。因此，通过使用恒定电压初始化光电二极管的阴极，可以准确地确定入射到光电二极管上的光的亮度。

6. 发明授权

US08183518B2 Touch panel driving circuit removing current due to heat of finger and touch panel comprising the same 有权
标题翻译：触摸面板驱动电路由于手指和包含该手指的触摸面板的热而去除电流
公开(公告)号：US08183518B2
公开(公告)日：2012-05-22
申请号：US12502167
申请日：2009-07-13
申请人： Soon-Sung Ahn , Yong-Sung Park , Do-Youb Kim , Deok-Young Choi , In-Ho Choi
发明人： Soon-Sung Ahn , Yong-Sung Park , Do-Youb Kim , Deok-Young Choi , In-Ho Choi
IPC分类号： G06M7/00 , G06F3/041
CPC分类号： G06F3/042
摘要： Provided is a driving circuit of a photosensing touch panel including: a first photodiode coupled between a first voltage source and a sensing node and for generating a first current in accordance with a brightness of an external incident light and a heat of a finger; a second photodiode coupled between the sensing node and a second voltage source and for generating a second current in accordance with the heat of the finger, the second photodiode being shielded from the external incident light; and an amplifier circuit for detecting the brightness of the external incident light regardless of the heat of the finger by subtracting the second current from the first current at the sensing node.
摘要翻译：提供了一种感光触摸面板的驱动电路，包括：耦合在第一电压源和感测节点之间的第一光电二极管，用于根据外部入射光的亮度和手指的热量产生第一电流; 第二光电二极管，耦合在所述感测节点和第二电压源之间，并且用于根据所述手指的热量产生第二电流，所述第二光电二极管屏蔽所述外部入射光; 以及放大器电路，用于通过从感测节点处的第一电流减去第二电流来检测外部入射光的亮度，而不管手指的热量。

7. 发明申请

US20100097354A1 LIGHT SENSING CIRCUIT, TOUCH PANEL INCLUDING THE SAME, AND METHOD OF DRIVING THE LIGHT SENSING CIRCUIT 有权
标题翻译：光感测电路，包括其的触控面板以及驱动光感测电路的方法
公开(公告)号：US20100097354A1
公开(公告)日：2010-04-22
申请号：US12581292
申请日：2009-10-19
申请人： Soon-Sung AHN , Yong-Sung Park , Do-Youb Kim , Deok-Young Choi , In-Ho Choi
发明人： Soon-Sung AHN , Yong-Sung Park , Do-Youb Kim , Deok-Young Choi , In-Ho Choi
IPC分类号： G06F3/042 , H01J43/30
CPC分类号： G06F3/0412 , G06F3/042
摘要： A light sensing circuit of a touch panel includes a photodiode including an anode and a cathode; a driving transistor including a gate electrode connected to the cathode of the photodiode, a first electrode to receive a first ground voltage, and a second electrode; a first switching transistor including a first electrode connected to the second electrode of the driving transistor, a second electrode to output a data signal, and a gate electrode to receive a scan signal; a first capacitor including a first terminal connected to the cathode of the photodiode, and a second terminal; and a voltage compensating unit to apply a compensation voltage to the second terminal of the first capacitor.
摘要翻译：触摸面板的感光电路包括：包括阳极和阴极的光电二极管; 驱动晶体管，其包括连接到所述光电二极管的阴极的栅电极，接收第一接地电压的第一电极和第二电极; 第一开关晶体管，包括连接到驱动晶体管的第二电极的第一电极，输出数据信号的第二电极和用于接收扫描信号的栅电极; 第一电容器，包括连接到所述光电二极管的阴极的第一端子和第二端子; 以及电压补偿单元，用于向第一电容器的第二端施加补偿电压。

8. 发明申请

US20100097350A1 PHOTO SENSING DEVICE, PHOTO SENSING CIRCUIT, TOUCH PANEL, AND METHOD OF SENSING OUTPUT VALUE OF PHOTO SENSING ELEMENT 有权
标题翻译：照片感光装置，照相感光电路，触控面板和感光元件的输出值的方法
公开(公告)号：US20100097350A1
公开(公告)日：2010-04-22
申请号：US12568055
申请日：2009-09-28
申请人： Deok-Young CHOI , Yong-Sung Park , Do-Youb Kim , Soon-Sung Ahn , In-Ho Choi
发明人： Deok-Young CHOI , Yong-Sung Park , Do-Youb Kim , Soon-Sung Ahn , In-Ho Choi
IPC分类号： G06F3/042 , G09G5/00
CPC分类号： G06F3/042 , G06F3/0412
摘要： A photo sensing device, a photo sensing circuit, a touch panel, and a method of sensing an output value of a photo sensing element, in order to remove the influence of a threshold voltage. The device includes a photo sensing unit generating a sensing current according to an intensity of incident light, a driving unit outputting a driving current according to the sensing current generated by the photo sensing unit, and a scanning unit outputting on a data line the driving current of the driving unit in a first mode corresponding to the photo sensing unit gathering light for a predetermined period of time and outputting the driving current in a second mode corresponding to the photo sensing unit initializing.
摘要翻译：光感测装置，感光电路，触摸面板以及检测感光元件的输出值的方法，以便消除阈值电压的影响。该装置包括：感光单元，根据入射光的强度产生感测电流;驱动单元，根据感光单元产生的感测电流输出驱动电流;以及扫描单元，在数据线上输出驱动电流所述驱动单元以对应于所述光感测单元收集预定时间段的第一模式，并以对应于所述感光单元初始化的第二模式输出所述驱动电流。

9. 发明申请

US20100097334A1 LIGHT SENSING CIRCUIT, METHOD OF DRIVING THE SAME, AND TOUCH PANEL INCLUDING THE LIGHT SENSING CIRCUIT 有权
标题翻译：光感测电路，其驱动方法以及包含光感测电路的触控面板
公开(公告)号：US20100097334A1
公开(公告)日：2010-04-22
申请号：US12568931
申请日：2009-09-29
申请人： Deok-Young Choi , Yong-Sung Park , Do-Youb Kim , Soon-Sung Ahn , In-Ho Choi
发明人： Deok-Young Choi , Yong-Sung Park , Do-Youb Kim , Soon-Sung Ahn , In-Ho Choi
IPC分类号： G06F3/041 , H01J40/00
CPC分类号： G06F3/0412 , G06F3/042
摘要： A light sensing circuit, a method of driving the same, and a touch panel including the light sensing circuit, the light sensing circuit including a photodiode generating current according to the brightness of light incident from the outside; a driving transistor having a first electrode to which a first power voltage is applied, a second electrode, and a gate electrode electrically connected to a cathode of the photodiode; a first reset transistor having a first electrode to which an initialization voltage is applied, a second electrode connected to the gate electrode of the driving transistor, and a gate electrode to which a previous scan signal is applied; and a shielding capacitor disposed between the gate electrode of the driving transistor and the cathode of the photodiode. Accordingly, the brightness of light incident on the photodiode can be accurately determined by initializing the cathode of the photodiode by using a constant voltage.
摘要翻译：光感测电路，其驱动方法以及包括光感测电路的触摸面板，所述光感测电路包括根据从外部入射的光的亮度产生电流的光电二极管; 具有施加有第一电源电压的第一电极的驱动晶体管，与所述光电二极管的阴极电连接的第二电极和栅电极; 第一复位晶体管，具有施加初始化电压的第一电极，连接到驱动晶体管的栅电极的第二电极和施加了先前扫描信号的栅电极; 以及设置在驱动晶体管的栅电极和光电二极管的阴极之间的屏蔽电容器。因此，通过使用恒定电压初始化光电二极管的阴极，可以准确地确定入射到光电二极管上的光的亮度。

10. 发明授权

US08754875B2 Light sensing circuit, touch panel including the same, and method of driving the light sensing circuit 有权
标题翻译：光感测电路，包括其的触摸面板以及驱动光感测电路的方法
公开(公告)号：US08754875B2
公开(公告)日：2014-06-17
申请号：US12581292
申请日：2009-10-19
申请人： Soon-Sung Ahn , Yong-Sung Park , Do-Youb Kim , Deok-Young Choi , In-Ho Choi
发明人： Soon-Sung Ahn , Yong-Sung Park , Do-Youb Kim , Deok-Young Choi , In-Ho Choi
IPC分类号： G06F3/038 , H01L31/00
CPC分类号： G06F3/0412 , G06F3/042
摘要： A light sensing circuit of a touch panel includes a photodiode including an anode and a cathode; a driving transistor including a gate electrode connected to the cathode of the photodiode, a first electrode to receive a first ground voltage, and a second electrode; a first switching transistor including a first electrode connected to the second electrode of the driving transistor, a second electrode to output a data signal, and a gate electrode to receive a scan signal; a first capacitor including a first terminal connected to the cathode of the photodiode, and a second terminal; and a voltage compensating unit to apply a compensation voltage to the second terminal of the first capacitor.
摘要翻译：触摸面板的感光电路包括：包括阳极和阴极的光电二极管; 驱动晶体管，其包括连接到所述光电二极管的阴极的栅电极，接收第一接地电压的第一电极和第二电极; 第一开关晶体管，包括连接到驱动晶体管的第二电极的第一电极，输出数据信号的第二电极和用于接收扫描信号的栅电极; 第一电容器，包括连接到所述光电二极管的阴极的第一端子和第二端子; 以及电压补偿单元，用于向第一电容器的第二端施加补偿电压。

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