The invention provides a compound, a display panel and a
display device. The compound has the structure shown in formula (I), L represents substituted or unsubstituted phenyl, naphthyl, pyridyl, pyrimidinyl and pyrazinyl; D is an
electron-donating group and independently selected from any one of substituted or unsubstituted phenyl,
biphenyl, naphthyl, anthryl, phenanthryl,
acenaphthylene, pyrenyl,peryl, flurenyl, spiro bifluorenyl, benzophenanthryl,
benzanthracene, fluoranthryl, picene, furyl, benzofuryl, dibenzofuryl, thienyl, benzothienyl, dibenzothienyl,
phenoxazine, thianthryl, carbazolyl, acridinyl and diarylamino. The designed compound has a TADF characteristic and can emit light by
triplet exciton of traditional
fluorescence molecular transition inhibition so as to improve the device efficiency.