Detection panel and manufacturing method thereof

A detection panel, comprising:

• a photosensitive element, configured to sense a first light beam incident to the photosensitive element to generate a photosensitive signal;
• a drive circuit, configured to be coupled to the photosensitive element to acquire the photosensitive signal from the photosensitive element, wherein the drive circuit comprises a switch element;
• a reflective grating, which is on a side of the drive circuit where the first light beam is incident, and is configured to reflect at least a portion of the first light beam incident toward the switch element;
• and
• a transmission grating, which is on a side of the photosensitive element where the first light beam is incident and is configured to transmit at least a portion of the first light beam incident toward the photosensitive element,
• wherein the reflective grating and the transmission grating are in a same layer and are made of a same material.

A manufacturing method of a detection panel, comprising:

• forming a photosensitive element, wherein the photosensitive element is configured to sense a first light beam incident to the photosensitive element to generate a photosensitive signal;
• forming a drive circuit, comprising forming a switch element, wherein the drive circuit is configured to be coupled to the photosensitive element to acquire the photosensitive signal from the photosensitive element;
• forming a reflective grating, wherein the reflective grating is on a side of the drive circuit where the first light beam is incident, and is configured to reflect at least a portion of the first light beam incident toward the switch element;
• and
• forming a light conversion layer, wherein the first light beam has a first wavelength, and the light conversion layer is configured to convert a second light beam which is incident on the light conversion layer into the first light beam, and the second light beam has a second wavelength smaller than the first wavelength.