| abstract |
OLED display panel comprising a first electrode (102, 202, 302) and a second electrode (105, 205, 305), wherein between the first electrode (102, 202, 302) and the second electrode (105, 205, 305 ) a laminate comprising a light emitting layer (103, 203, 303) and an electron transport layer (104, 204, 304) is arranged, and the material of the electron transport layer (104, 204, 304) comprises an electron transport material having a structure represented by the formula (I): wherein in formula (I) a, b and c are each independently selected from the group consisting of CR 4 and N, where R 4 is one or a combination of at least two selected from the group consisting of a hydrogen atom, a substituted or unsubstituted hydrocarbyl, a heterocyclic group, a halogen atom, a nitro group, a cyano group, -OR 7 , -SR 8 and -COOR 9 , where R 5 , R 6 , R 7 , R 8 and R 9 are each independently one or a combination of at least two selected from the group consisting of a hydrogen atom, a substituted or unsubstituted hydrocarbyl and a heterocyclic group, wherein in formula (I) R 1 , R 2 and R 3 are each independently one or a combination of at least two selected from the group consisting of a hydrogen atom, a deuterium atom, a substituted or unsubstituted hydrocarbyl and a heterocyclic group. |