Pixel structure, image sensor and terminal

Abstract

The embodiment of the invention discloses a pixel structure, an image sensor and a terminal. The pixel structure comprises a first sub-pixel structure, the first sub-pixel structure comprises a firsttype of photoelectric conversion units and a second type of photoelectric conversion units which are stacked; the corresponding relationship between the wavelength and the penetration depth is utilized, the first type of photoelectric conversion units at a shallow position absorb optical signals of a first specific wavelength, and the second type of photoelectric conversion units at the deeper position absorb optical signals of a second specific wavelength; moreover, the first type of photoelectric conversion units absorb the optical signals of the first specific wavelength according to the resonance wavelength of the photosensitive area, and the size of the photosensitive area of the first type of photoelectric conversion units is adjusted to ensure that the photoelectric conversion unitshave high quantum efficiency, thereby meeting the requirements of the image sensor for small size and high pixel.

Description

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AI Technical Summary

Benefits of technology

This technology allows for creation of an improved pixel design with multiple types of photovoltaic units arranged together on top of each other. Each layer contains two different components: one converts certain colors into electrical energy while another captures them onto special materials like crystals or silicon chips. These layers can be used alone or combined to achieve higher levels of sensitivity without increasing their overall dimensions.

Problems solved by technology

This patented technology describes an imaging device called Fovex 3 which captures images from various colored lights at varying distances downward through space. Its technical problem being addressed by researchers is how to improve its performance while reducing sensitivity issues caused by interference patterns or other factors such as chromatic aberrations due to differences in optical properties across multiple pixels.

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