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    • 3. 发明申请
    • IMAGE PIXEL OF CMOS IMAGE SENSOR
    • CMOS图像传感器的图像像素
    • US20060284998A1
    • 2006-12-21
    • US11379419
    • 2006-04-20
    • Deuk PARKWon CHOIShin KANGJoo Ko
    • Deuk PARKWon CHOIShin KANGJoo Ko
    • H04N5/335
    • H01L27/14609H04N5/35518H04N5/361H04N5/3745
    • An image pixel of a CMOS image sensor in which a dark diode serving as a dark current source is directly connected to a photo diode so that a dark current generated in an image pixel can be minimized. Further, since noise which can be generated by the dark current can be reduced, a high S/N ratio is obtained, and dynamic range and low illumination characteristics are enhanced. In addition, operational characteristics at high temperature can be improved. The image pixel of a CMOS image sensor includes a photoelectric conversion element that is connected to a first node and ground terminal so as to generate a signal by using incident light, an electric current source that is connected to the first node and a power supply terminal so as to supply a dark current, a first switch that is connected to a second node, the power supply terminal, and the first node and that changes the potential of a node connected to the first node by using the signal charges accumulated in the first node so that the bias of the second node is changed, a second switch that is connected to the first switch and that receives a row selection signal so as to output a potential difference generated by the signal generated by the photoelectric conversion element to a column selection line, and a third switch that is connected between the first node and the power supply terminal and that receives a reset signal so as to reset the signal charges accumulated in the first node.
    • CMOS图像传感器的图像像素,其中用作暗电流源的暗二极管直接连接到光电二极管,使得可以使在图像像素中产生的暗电流最小化。 此外,由于可以减小由暗电流产生的噪声,所以可以获得高的S / N比,并提高动态范围和低照度特性。 此外,可以提高高温下的操作特性。 CMOS图像传感器的图像像素包括:光电转换元件,其连接到第一节点和接地端子,以便通过使用入射光产生信号;连接到第一节点的电流源和电源端子 以便提供暗电流,连接到第二节点的第一开关,电源端子和第一节点,并且通过使用累积在第一节点中的信号电荷来改变连接到第一节点的节点的电位 节点,使得第二节点的偏置改变;第二开关,其连接到第一开关并且接收行选择信号,以便将由光电转换元件产生的信号产生的电位差输出到列选择 线路和第三开关,其连接在第一节点和电源端子之间,并且接收复位信号,以便重置在第一节点和电源端子中积累的信号电荷 t节点。
    • 4. 发明申请
    • Image sensor for semiconductor light-sensing device and image processing apparatus using the same
    • 用于半导体光感测装置的图像传感器和使用其的图像处理装置
    • US20060266921A1
    • 2006-11-30
    • US11387696
    • 2006-03-24
    • Shin KangWon ChoiJoo KoDeuk Park
    • Shin KangWon ChoiJoo KoDeuk Park
    • H01L27/00
    • H01L27/14647H01L27/14621H01L27/14627H01L31/02162H04N9/045H04N2209/047
    • The invention relates to an image sensor and an image processing apparatus using the same having a color filter array with open window cells alternating with single color filter cells. The image sensor includes a lens array containing a plurality of microlenses, a color filter array having a plurality of open window cells and color filter cells, each corresponding to each microlens. The image sensor also includes a protection layer, and a pixel sensor array having a first photosensor sensing a first light passed through each color filter cell, a second photosensor formed under the first photosensor, sensing a second light passed through each color filter cell, a third photosensor sensing a third light passed through each open window cell, and a fourth photosensor formed under the third photosensor, sensing a fourth light passed through each open window cell.
    • 本发明涉及一种图像传感器和使用该图像传感器的图像处理装置,该图像处理装置具有与单色滤色器单元交替的开窗单元的滤色器阵列。 图像传感器包括包含多个微透镜的透镜阵列,具有多个开窗单元和滤色器单元的滤色器阵列,每个对应于每个微透镜。 图像传感器还包括保护层,以及像素传感器阵列,其具有感测通过每个滤色器单元的第一光的第一光电传感器,形成在第一光电传感器下方的第二光电传感器,感测通过每个滤色器单元的第二光, 感测通过每个打开窗口单元的第三光的第三光电传感器,以及形成在第三光电传感器下面的第四光电传感器,感测通过每个打开的窗口单元的第四个光。