Photoelectric detection circuit comprising a first photoelectric sensing element for optical signal detection and a second photosensing element with a light shield

A photoelectric detection circuit, comprising a first sub-circuit and a second sub-circuit,

• wherein the first sub-circuit comprises a first photoelectric sensing element, and the second sub-circuit comprises a second photoelectric sensing element;
• an electrical characteristic of the first photoelectric sensing element is substantially identical to an electrical characteristic of the second photoelectric sensing element, and the second photoelectric sensing element is shielded to prevent light from being incident on the second photoelectric sensing element;
• the photoelectric detection circuit further comprises a shading element:
• the first sub-circuit is stacked with the second sub-circuit, and the first sub-circuit is above the second sub-circuit;
• and
• the shading element is located between the first sub-circuit and the second sub-circuit, and covers the second photoelectric sensing element so that the light incident on the second photoelectric sensing element is shielded.

A photoelectric detector comprising at least one photoelectric detection circuit,

• wherein the photoelectric detection circuit comprises a first sub-circuit and a second sub-circuit;
• the first sub-circuit comprises a first photoelectric sensing element, and the second sub-circuit comprises a second photoelectric sensing element;
• an electrical characteristic of the first photoelectric sensing element is substantially identical to an electrical characteristic of the second photoelectric sensing element, and the second photoelectric sensing element is shielded to prevent light from being incident on the second photoelectric sensing element;
• and
• the first sub-circuit is stacked with the second sub-circuit, and the first sub-circuit is above the second sub-circuit, and so that the light incident on the second photoelectric sensing element is shielded by the first sub-circuit.