Hybrid multi-spectrum photosensitive pixel group, photosensitive device, and photosensitive system

摘要

The present invention relates to a mixed multi-spectrum light-sensing pixel group, a light-sensing device, and a light-sensing system. The mixed multi-spectrum light-sensing pixel group includes at least one chemical coating light-sensing pixel and at least one semiconductor light-sensing pixel. In the present invention, the chemical coating light-sensing pixel and the semiconductor light-sensing pixel are combined to generate a mixed multi-spectrum light-sensing pixel, numerous color signals and other spectral signals may be simultaneously obtained, energy of incident photons can be maximally utilized, and the theoretical upper limit of photoelectric conversion efficiency is achieved or approximately achieved; colors may be completely reconstructed, and meanwhile images of other spectrums including an ultraviolet image, a near-infrared image, and a far-infrared image are obtained.

主权项

1. A mixed multi-spectrum light-sensing device, comprising at least two light-sensing pixel layers, wherein the light-sensing pixel layers each comprise a chemical coating light-sensing pixel layer and a semiconductor light-sensing layer, at least one chemical coating light-sensing pixel is arranged at the chemical coating light-sensing pixel layer and at least one semiconductor light-sensing pixel is arranged at the semiconductor light-sensing pixel layer;
wherein the at least one chemical coating light-sensing pixel layer is arranged above the at least one semiconductor light-sensing pixel layer; or, wherein the at least one chemical coating light-sensing pixel layer is arranged below the at least one semiconductor light-sensing pixel layer; wherein two neighboring layers of the light-sensing pixel layers are each provided with a reading circuit; or two neighboring layers of the light-sensing pixel layers share a reading circuit, wherein the reading circuit is a reading circuit for an active pixel, a reading circuit for a passive pixel, or a mixed reading circuit for an active pixel and a passive pixel, wherein a sharing manner of the reading circuit comprises a single-layered or upper-and-lower-layer 4-point sharing manner, a single-layered or upper-and-lower-layer 6-point sharing manner, a single-layered or upper-and-lower-layer 8-point sharing manner, or a single-layered or upper-and-lower-layer any-number-of-point sharing manner; wherein the reading circuit comprises a first combining unit configured to perform pair-wise combining and sampling on proximate same-row different-column, different-row same-column, or different-row different-column pixels in a pixel array of each light-sensing pixel layer, to obtain sampling data of a first combining pixel; and a second combining unit configured to perform combining and sampling on the sampling data of the first combining pixel obtained by the first combining unit to obtain sampling data of a second combining pixel, wherein a pixel combining manner of the first combining unit or the second combining unit is a charge addition manner between same or different color pixels or a signal average manner between different color pixels, wherein the pixel combining manner between different color pixels conforms to a manner of color space conversion, so as to satisfy a color reconstruction requirement.