Inspired　by　human　sense　organs,　AI　is　advancing　toward　multimodal　perception,　with　display　technology　evolving　into　intelligent　human-computer　interaction　tools.　However,　hardware　networks　with　multimodal　responses　connected　by　different　devices　bring　problems　such　as　delayed　information　transfer　and　inefficiency.　Thus,　an　innovative　three-mode　photosensitive　synaptic　LED　(PSSL)　is　first　proposed　by　adding　a　photosensitive　layer　indacenodithiophene-benzothiadiazole　(IDTBT)　to　the　quantum-dot　light-emitting　diode　(QLED),　switched　by　changing　the　bias　voltage.　The　self-powered　PSSL　has　a　photoresponse　range　from　310　nm　to　808　nm　(ultraviolet-near-infrared,　UV-NIR).　The　device　exhibits　a　bipolar　response　under　red　and　UV　light　at　1　V.　When　the　voltage　reaches　the　turn-on　voltage,　the　PSSL　device　turns　into　a　neuromorphic　LED,　exhibiting　conductivity　enhancement　under　red-light　irradiation　and　suppression　under　UV-light　irradiation.　As　a　result,　the　PSSLs　are　expected　to　be　applied　in　the　field　of　optical　encryption　communication　and　in　neuromorphic　display.