CMOS image sensor having wide dynamic range and sensing method thereof
a technology of image sensor and dynamic range, which is applied in the field of cmos image sensor, can solve the problems of not being able to say which method is remarkably superior, and achieve the effects of wide dynamic range, wide dynamic range, and improved dynamic rang
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[0036]In a CMOS image sensor including an array of unit pixel according to the present invention, the unit pixel is connected to a first output signal line and a second output signal line that are arranged in each column of the array.
[0037]Further, the unit pixel includes a photodiode; a first processing unit connected to the photodiode, that amplifies a first floating diffusion voltage formed by being provided with electrons accumulated in the photodiode during a first exposure integration time and transmits the amplified voltage to the first output signal line; a second processing unit connected to the photodiode, that amplifies a second floating diffusion voltage formed by being provided with electrons accumulated in the photodiode during a second exposure integration time which is separated from the first exposure integration time and transmits the amplified voltage to the second output signal line; and an erasing transfer gate transistor arranged between the photodiode and a po...
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