Image sensor and control method thereof
AssigneeVisEra Technologies Company Limited
InventorsLai-Hung Lai, Wen-Yu Shih, Chin-Chuan Hsieh
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Abstract
The present disclosure provides an image sensor and control method thereof. The image sensor includes a first transparent conductive layer, a second conductive layer, an optical sensor and a semiconductor substrate. The optical sensor is arranged between the first transparent conductive layer and the second conductive layer, and includes a photoelectric conversion layer, wherein the photoelectric conversion layer has a thickness ranging from 500 to 10000 nm, and the optical sensor has a plurality of absorption spectrum ranges. The semiconductor substrate is below the second conductive layer.
Claims20
An image sensor, comprising:
- a first transparent conductive layer;
- a second conductive layer;
- and
- an optical sensor arranged between the first transparent conductive layer and the second conductive layer, and comprising a photoelectric conversion layer, wherein the photoelectric conversion layer has a thickness ranging from 500 to 10000 nm, and the optical sensor has a plurality of absorption spectrum ranges;
- and
- a semiconductor substrate below the second conductive layer.
A control method of image sensor, wherein the image sensor comprises an optical sensor, and the control method comprises:
- determining to operate the image sensor in one of a plurality of operation modes;
- adjusting a bias voltage applied to the optical sensor to a first voltage level when the image sensor is determined to operate in a narrowband mode of the plurality of operation modes, so that the optical sensor has a first absorption spectrum range;
- and
- adjusting the bias voltage to a second voltage level different from the first voltage level when the image sensor is determined to operate in a broadband mode or a wideband mode of the plurality of operation modes, so that the optical sensor has a second absorption spectrum range or a third absorption spectrum range, wherein the second absorption spectrum range and the third absorption spectrum range both are wider than the first absorption spectrum range.
Dependencies are inferred from the claim text.