NOVELTY - A compound (I) including indole derivative, is new.    USE - New compound including indole derivative is used as luminescent material, host material, dopant material, hole injection material, hole transport material, electron injection material, or electron transport material in organic electronic device e.g. organic light-emitting device, organic solar cell, organophotoreceptor drum, and organic thin film transistor used in terminals (all claimed). Uses include but are not limited to personal digital assistants, electronic dictionaries, remote controls, navigation systems, game consoles, cellular phones, and televisions.    ADVANTAGE - The new compound provides organic electronic devices having excellent efficiency and durability, and low drive voltage.    DETAILED DESCRIPTION - A compound of formula (I) including indole derivative, is new.    R1-R3,X=optionally substituted 6-60C aryl or 5-60C heterocyclyl, H, halo, cyano, nitrile, 1-60C alkyl, 1-60C alkoxy, 1-60C alkylamino, 1-60C arylamino, 1-60C alkylthiophenyl, 6-60C arylthiophenyl, 2-60C alkenyl, 2-60C alkynyl, 3-60C cycloalkyl, 6-60C aryl, 6-60C aryl substituted by deuterium, 8-60C arylalkenyl, or silyl, boronyl, germanyl or 5-60C heterocyclyl (all optionally substituted), amino (substituted by substituent(s) chosen from aryl, arylalkyl or arylalkenyl (all optionally substituted)), or condensed ring group of 6-60C aromatic ring and 4-60C aliphatic ring, and, each of them is arbitrary group chosen from H, halo, nitro, cyano, or aliphatic hydrocarbyl, aryl, or heteroaryl (all optionally substituted);    n=1-3;    Ar1,Ar2=halo, alkyl, alkenyl, or aryl, arylalkyl, arylalkenyl, heterocyclyl, carbazolyl, or fluorenyl (all optionally substituted), nitrile, or acetylene, and each of them is optionally substituted 1-60C alkyl, 1-60C alkoxy, 1-60C aryl, carbazolyl, or fluorenyl, or is optionally substituted by substituent(s) chosen from halo, alkyl, alkenyl, alkoxy, optionally substituted arylamino, aryl, carbazolyl, fluorenyl, nitrile, and acetylene, and is chosen from heterocyclyl including O, N, and S, hydroxy, carboxy, nitrile, nitro, halo, -(R')(R"), -CO-N(R')(R"), and -COOR';    L=bivalent or trivalent optionally substituted aliphatic hydrocarbyl or bivalent linking group;and    m=0-3.    INDEPENDENT CLAIMS are included for the following:    (1) organic electronic device consisting of organic layer(s) containing compound (I); and    (2) terminal including the display device and a controller for operating the display device.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the organic electroluminescent device. (Drawing includes non-English language text)    Electrodes (102,108)    Hole implant layer (103)    Hole transport layer (104)    Light-emitting layer (105)    Electron injection layer (106)    Electron transport layer (107)