Pixel array of CIS

Abstract

The invention discloses a pixel array of a CIS, and belongs to the field of integrated circuits. The pixel array of the CIS sequentially comprises a base, a metal layer and a micro lens layer from bottom to top, wherein a sensor layer used for carrying out photoelectric conversion on incident light in an optical path is arranged in the base , the metal layer is used for transmitting electric signals under the photoelectric conversion to a peripheral circuit to enable the electric signals to be processed, the micro lens layer is made of gradient refractive index materials so as to enable the incident light to form two different optical paths, and therefore digital images simulating the left eye path and the right eye path are formed through the processing of the peripheral circuit. According to the pixel array of the CIS, due to the fact that the micro lens layer is made of the gradient refractive index materials and the incident light is made to form the two different optical paths, the digital images simulating the left eye path and the right eye path are formed through the processing of the peripheral circuit. An image sensor is used by the digital images based on the left eye path and the right eye path, and therefore the binocular stereoscopic vision of human eyes is achieved.

Description

technical field [0001] The invention belongs to the field of integrated circuits, and in particular relates to a CIS pixel array. Background technique [0002] Image sensors are widely used in civil and commercial applications. Currently, the image sensor consists of a CMOS image sensor (CMOS IMAGE SENSOR, hereinafter referred to as CIS) and a charge-coupled image sensor (Charge-coupled Device, hereinafter referred to as CCD). Compared with CIS, CCD has higher power consumption and greater difficulty in integration, while the latter has low power consumption, easy integration and higher resolution. Although, in terms of image quality, CCD may be better than CIS. However, with the continuous improvement of CIS technology, the image quality of some CIS is close to that of CCD with the same specification. [0003] For CCD, on the one hand, it is the first choice in professional scientific research and industrial fields because of its high signal-to-noise ratio; on the other ...

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It can be seen that the cost of building such a system is quite high

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