NOVELTY - Mixtures (blends) containing (A) conjugated polymer(s), (B) bridged carbazole unit(s) and (C) triplet emitter(s).    USE - In organic light-emitting diodes, solar cells, laser diodes, optical detectors and non-linear optical devices (claimed).    ADVANTAGE - Conjugated polymers and mixtures containing certain bridged carbazole units in combination with triplet emitters enable the production of LED's and other electronic components with distinct improvements in properties such as light emission efficiency and operating voltage.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for    (1) conjugated polymers (POLY4) containing (A) 1-99.9 mol% units of formula (I) and (B) 0.1-95 mol% triplet emitter(s)    (2) mixtures of POLY4 and other molecules which may be low molecular weight, oligomeric, dendritic or polymeric    (3) compounds of formula (LIX)    (4) electronic components (EC) with one or more active layers, at least one of which contains one or more of the claimed mixtures or polymers.    R = 1-40C (cyclo)alkylene (optionally substituted with R1 and optionally with one or more non-adjacent C atoms replaced by -NR2-, -O-, -S-, -CO-, -COO-, -CONR2- or -OCOO-), a 2-40C bivalent (hetero)aromatic ring system (optionally substituted with R1), optionally substituted vinylene, an acetylene unit or a combination of 2-5 of these systems, in which the aromatic units may also form part of a larger condensed system and any substituents R1 may be in any free position;    R1 = 1-22C alkyl or alkoxy (linear, branched or cyclic; optionally with C atoms replaced as above and optionally with H atom(s) replaced by F), 5-40C aryl or aryloxy (optionally with one or more C replaced by O, S or N and optionally substituted with non-aromatic groups R1), a vinyl or acetylene group, F, Cl, Br, I, NO2, CN, N(R2)2, B(R2)2 or Si(R2)3 (optionally with groups R1 forming mono- or poly-cyclic aliphatic or aromatic ring systems);    R2 = H, 1-22C (cyclo)alkyl (optionally with C atoms replaced by O, S, COO or OCOO and H replaced by F) or 5-40C aryl (optionally with C atoms replaced by O, S or N and optionally substituted with non-aromatic R2, which may combine to form a ring system);    n = 0, 1, 2, 3 or 4, with the proviso that n is not 4 if one linkage to the polymer chain is on this phenyl group and that n is not 3 or 4 if both links to the polymer are on this phenyl group;    X = the linkage to the polymer chain; and    Y = functional groups which undergo copolymerization under C-C or C-N linking conditions.