NOVELTY - A polycyclic ring-containing compound (I) or (II) is new.    USE - New polycyclic ring-containing compound is used for organic electronic device e.g. organic light emitting device, organic solar cell, organophotoreceptor and organic transistor (all claimed).    ADVANTAGE - The organic electronic device using polycyclic ring-containing compound has excellent driving stability, durability and thermal stability.    DETAILED DESCRIPTION - A polycyclic ring-containing compound of formula (I) or (II) is new.    X=S, NR or O;    R=H, 1-30C alkyl or 6-60C aryl;    n,m=0-4;    p=0-3;    R1-R3=1-12C alkyl, 3-12C cycloalkyl, 2-12C heterocycloalkyl, 2-12C alkenyl, 1-12C alkoxy, arylamine, aralkylamino, 2-30C heteroaryl containing O, N or S, 3-40C heteroarylamine containing O, N or S (all optionally substituted), H, D, fluoro, nitro, trimethylsilyl or triphenyl silane;    or R1+R2+R3=aromatic, aliphatic, or heterocylic ring;    Ar=H, D, halo, amino, nitro, amido, 1-30C alkoxy, 6-30C aryloxy, 1-30C t-alkyloxy, 1-30C alkylamine, 6-60C aralkylamine, 6-60C arylamine (all optionally substituted by group A), or 6-60C aryl, 3-60C heteroaryl, boron, (un)substituted silyl, (un)substituted ester (all optionally substituted by group B');    Ar+adjacent groups=spiro bond or aliphatic hetero ring or aromatic heterocylic ring;    group A=halo, amino, nitro, 1-30C alkyl, 2-30C alkenyl, 1-30C alkoxy, 3-30C cycloalkyl, 2-30C heterocycloalkyl, 6-60C aryl and/or 3-60C heteroaryl;and    group B'=halo, amino, nitro, 1-30C alkyl, 2-30C alkenyl, 1-30C alkoxy, 6-30C aryloxy, 1-30C t-alkyloxy, 3-30C cycloalkyl, 2-30C heterocycloalkyl, (un)substituted 1-30C alkylamine, (un)substituted 1-30C aralkylamine, (un)substituted 6-60C arylamine, 6-60C aryl or 3-60C heteroaryl.    An INDEPENDENT CLAIM is included for organic electronic device, which comprises a primary electrode, secondary electrode and an organic layer containing polycyclic ring-containing compound (I) or (II) formed between the primary electrode and secondary electrode.