Photosensitive assembly and preparation method thereof, array substrate and display device
A technology of photosensitive components and photodiodes, which is applied in the direction of electrical components, electric solid devices, semiconductor devices, etc., can solve the problems of affecting the contrast of fingerprints, the small signal-to-noise ratio of photodiodes, and the effect of photodiodes on fingerprint recognition, etc., so as to improve the contrast , Improve the detection effect and improve the accuracy
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0031] An embodiment of the present invention provides a photosensitive component, such as figure 1 As shown, it includes: a switch unit 10, the switch unit 10 includes an active layer 11; a photodiode 20, the photodiode 20 includes a P-type semiconductor layer 22 and an N-type semiconductor layer 21 that are stacked, wherein the N-type semiconductor layer 21 includes an The opposite portion facing the P-type semiconductor layer 22 and the extension portion ex...
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