TECHNOLOGY FOCUS - ELECTRONICS - Preferred Component: The organic electroluminescent apparatus comprises a cathode, an anode and an organic film layer. An organic luminous layer is contained in the organic film layer between the cathode and anode. Preferred Component: The organic luminous layer in the organic film layer comprises the polyaryl substituted pyridine derivatives. The organic solvent is carbinol, ethanol, tetrahydrofuran, dichloromethane or dioxane. The unsubstituted 1-20C alkyl in R1, R'1, R3, R'3, R4 and R'4 is methyl, ethyl, propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, n-amyl, n-hexyl, n-heptyl or n-octyl. The substituted 1-20C alkyl in R1, R'1, R3, R'3, R4 and R'4 is methylol, 1-hydroxyethyl, 2-hydroxyethyl, 2-hydroxyisobutyl 1,2-dihydroxyethyl, 1,3-dihydroxyisopropyl, 2,3-dihydroxy-tert-butyl, 1,2,3-trihydroxypropyl, chloromethyl, 1-chloroethyl, 2-chloroethyl, 2-chloroisobutyl, 1,2-ethyl dichloride, 1,3-dichloride isopropyl, 2,3-dichloro-tert-butyl, 1,2,3-trichloropropyl, bromomethyl, 1-bromoethyl, 2-bromoethyl, 2-bromoisobutyl, 1,2-dibromoethyl, 1,3-dibromoisopropyl, 2,3-dibromo-tert-butyl, 1,2,3-tribromopropyl, iodomethyl, 1-iodoethyl, 2-iodoethyl, 2-iodoisobutyl, 1,2-diiodoethyl, 1,3-diiodoisopropyl, 2,3-diiodo-tert-butyl, 1,2,3-triiodopropyl, aminomethyl, 1-aminoethyl, 2-aminoethyl, 2-aminoisobutyl, 1,2-diaminoethyl, 1,3-diaminoisopropyl, 2,3-diamino-tert-butyl, or 1,2,3-triaminopropyl. The unsubstituted 5-20C cycloalkyl in R1, R'1, R3, R'3, R4 and R'4 is cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl. The substituted 5-20C cycloalkyl in R1, R'1, R3, R'3, R4 and R'4 is 4-methylcyclohexyl, adamantyl or norborneolalkyl. The 1-20C alkoxy in R1, R'1, R3, R'3, R4 and R'4 is a radical represented by -OR. The 6-60C aralkyl in R1, R'1, R3, R'3, R4 and R'4 is benzyl, 1-phenylethyl, 2-phenylethyl, 1-phenylisopropyl, 2-phenylisopropyl, phenyl-tert-butyl, alpha -naphthyl methyl, 1- alpha -naphthyl ethyl, 2- alpha -naphthyl ethyl, 1- alpha -naphthylisopropyl, 2- alpha -naphthylisopropyl, beta -naphthyl methyl, 1- beta -naphthyl ethyl, 2- beta -naphthyl ethyl, 1- beta -naphthylisopropyl, 2- beta -naphthylisopropyl, 1-pyrrolylmethyl, 2-(1-pyrrolyl) ethyl, p-methylbenzyl, m-methylbenzyl, o-methylbenzyl, p-chlorobenzyl, m-chlorobenzyl, o-chlorobenzyl, p-bromobenzyl, m-bromobenzyl, o-bromobenzyl, p-iodobenzyl, m-iodobenzyl, o-iodobenzyl, p-aminobenzyl, m-aminobenzyl, o-aminobenzyl, p-nitrobenzyl, m-nitrobenzyl, o-nitrobenzyl, p-cyanobenzyl, m-cyanobenzyl, o-cyanobenzyl, 1-chloro-2-phenylisopropyl or triphenylmethyl. The 6-50C aryl in R1, R'1, R3, R'3, R4 and R'4 is phenyl, 1-naphthyl, 2-naphthyl, 1-anthryl, 2-anthryl, 9-anthryl, 1-phenanthryl, 2-phenanthryl, 2-phenanthryl, 3-phenanthryl, 9-phenanthryl, 1-naphtetraphenyl, 2-naphtetraphenyl, 9-naphtetraphenyl, 1-pyrenyl, 2-pyrenyl, 4-pyrenyl, 2-biphenylyl, 3-biphenylyl, 4-biphenylyl, p-terphenyl-4-yl, p-terphenyl-3-yl, p-terphenyl-2-yl, m-terphenyl-4-yl, m-terphenyl-3-yl, m-terphenyl-2-yl, o-tolyl, m-tolyl, p-tolyl, p-tert-butyl phenyl, p-(2-phenylpropyl) phenyl, 3-methyl-2-naphthyl, 4-methyl-1-naphthyl, 4-methyl-1-anthryl, 4'-methylbiphenylyl or 4"-tert-butyl-p-terphenyl-4-yl. The 6-50C aryloxy in R1, R'1, R3, R'3, R4 and R'4 is a radical represented by -OAr1. The aromatic 5-50C heterocyclic in R1, R'1, R3, R'3, R4 and R'4 are 1-pyrryl, 2-pyrryl, 3-pyrryl, pyridyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, 1-indyl, 2-indyl, 3-indyl, 4-indyl, 5-indyl, 6-indyl, 7-indyl, 1-isoindyl, 2-isoindyl, 3-isoindyl, 4-isoindyl, 5-isoindyl, 6-isoindyl, 7-isoindyl, 2-furanyl, 3-furanyl, 2-benzofuranyl, 3-benzofuranyl, 4-benzofuranyl, 5-benzofuranyl, 6-benzofuranyl, 7-benzofuranyl, 1-isobenzofuranyl, 3-isobenzofuranyl, 4-isobenzofuranyl, 5-isobenzofuranyl, 6-isobenzofuranyl, 7-isobenzofuranyl, 2-quinolyl, 3-quinolyl, 4-quinolyl, 5-quinolyl, 6-quinolyl, 7-quinolyl, 8-quinolyl, 1-isoquinolyl, 3-isoquinolyl, 4-isoquinolyl, 5-isoquinolyl, 6-isoquinolyl, 7-isoquinolyl, 8-isoquinolyl, 2-quinoxalinyl, 5-quinoxalinyl, 6-quinoxalinyl, 1-carbazyl, 2-carbazyl, 3-carbazyl, 4-carbazyl, 0-carbazyl, 1-phenanthridinyl, 2-phenanthridinyl, 3-phenanthridinyl, 4-phenanthridinyl, 6-phenanthridinyl, 7-phenanthridinyl, 8-phenanthridinyl, 9-phenanthridinyl, 10-phenanthridinyl, 1-acridinyl, 2-acridinyl, 3-acridinyl, 4-acridinyl, 9-acridinyl, 1,7-phenanthrolin-2-yl, 1,7-phenanthrolin-3-yl, 1,7-phenanthrolin-4-yl, 1,7-phenanthrolin-5-yl, 1,7-phenanthrolin-6-yl, 1,7-phenanthrolin-8-yl, 1,7-phenanthrolin-9-yl, 1,7-phenanthrolin-10-yl, 1,8-phenanthrolin-2-yl, 1,8-phenanthrolin-3-yl, 1,8-phenanthrolin-4-yl, 1,8-phenanthrolin-5-yl, 1,8-phenanthrolin-6-yl, 1,8-phenanthrolin-7-yl, 1,8-phenanthrolin-9-yl, 1,8-phenanthrolin-10-yl, 1,9-phenanthrolin-2-yl, 1,9-phenanthrolin-3-yl, 1,9-phenanthrolin-4-yl, 1,9-phenanthrolin-5-yl, 1,9-phenanthrolin-6-yl, 1,9-phenanthrolin-7-yl, 1,9-phenanthrolin-8-yl, 1,9-phenanthrolin-10-yl, 1,10-phenanthrolin-2-yl, 1,10-phenanthrolin-3-yl, 1,10-phenanthrolin-4-yl, 1,10-phenanthrolin-5-yl, 2,9-phenanthrolin-1-yl, 2,9-phenanthrolin-3-yl, 2,9-phenanthrolin-4-yl, 2,9-phenanthrolin-5-yl, 2,9-phenanthrolin-6-yl, 2,9-phenanthrolin-7-yl, 2,9-phenanthrolin-8-yl, 2,9-phenanthrolin-10-yl, 2,8-phenanthrolin-1-yl, 2,8-phenanthrolin-3-yl, 2,8-phenanthrolin-4-yl, 2,8-phenanthrolin-5-yl, 2,8-phenanthrolin-6-yl, 2,8-phenanthrolin-7-yl, 2,8-phenanthrolin-9-yl, 2,8-phenanthrolin-10-yl, 2,7-phenanthrolin-1-yl, 2,7-phenanthrolin-3-yl, 2,7-phenanthrolin-4-yl, 2,7-phenanthrolin-5-yl, 2,7-phenanthrolin-6-yl, 2,7-phenanthrolin-8-yl, 2,7-phenanthrolin-9-yl, 2,7-phenanthrolin-10-yl, 1-phenazinyl, 2-phenazinyl, 1-phenothiazinyl, 2-phenothiazinyl, 3-phenothiazinyl, 4-phenothiazinyl, 10-phenothiazinyl, 1-phenoxazinyl, 2-phenoxazinyl, 3-phenoxazinyl, 4-phenoxazinyl, 10-phenoxazinyl, 2-oxazolyl, 4-oxazolyl, 5-oxazolyl, 2-oxadiazolyl, 5-oxadiazolyl, 3-furazanyl, 2-thienyl, 3-thienyl, 2-methylpyridin-1-yl, 3-methylpyridin-1-yl, 3-methylpyridin-2-yl, 3-methylpyridin-4-yl, 3-methylpyridin-5-yl, 2-tert-butyl-pyrrol-4-yl, 3-(2-phenylpropyl)pyrrol-1-yl, 2-methyl-1-indyl, 4-methyl-1-indyl, 2-methyl-3-indyl, 4-methyl-3-indyl, 2-tert-butyl -1-indyl, 4-tert-butyl -1-indyl, 2-tert-butyl-3-indyl or 4-tert-butyl-3-indyl. Fluoromethyl in R2, R'2, R5 and R'5 is monofluoro, difluoro or trifluoro substituted methyl. The 2-20C ester radical in R2, R'2, R5 and R'5 is methoxycarbonyl, ethoxycarbonyl, propyl ester radical, isopropyl ester radical, n-butyl ester radical, sec-butyl ester radical, isobutyl ester radical, n-amyl ester radical, n-hexyl ester radical, n-heptyl ester radical or n-octyl ester radical.R=alkyl which is Me, Et, propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, n-amyl, n-hexyl, n-heptyl, n-octyl, methylol, 1-hydroxyethyl, 2-hydroxyethyl, 2-hydroxyisobutyl 1,2-dihydroxyethyl, 1,3-dichloroisopropyl, 2,3-dichloro-tert-butyl, 1,2,3-trichloropropyl, bromomethyl, 1-bromoethyl, 2-bromoethyl, 2-bromoisobutyl, 1,2-dibromoethyl, 1,3-dibromoisopropyl, 2,3-dibromo-tert-butyl, 1,2,3-tribromopropyl, iodomethyl, 1-iodoethyl, 2-iodoethyl, 2-iodoisobutyl, 1,2-diiodoethyl, 1,3-diiodoisopropyl, 2,3-diiodo-tert-butyl, 1,2,3-triiodopropyl, iodomethyl, 1-iodoethyl, 2-iodoethyl, 2-iodoisobutyl, 1,2-diiodoethyl, 1,3-diiodoisopropyl, 2,3-diiodo-tert-butyl, 1,2,3-triiodopropyl, aminomethyl, 1-aminoethyl, 2-aminoethyl, 2-aminoisobutyl, 2-aminoisobutyl, 1,2-diaminoethyl, 1,3-diaminoisopropyl, 2,3-diamino-tert-butyl, 1,2,3-triaminopropyl; cyanomethyl, 1-cyanoethyl, 2-cyanoethyl, 2-cyanoisobutyl, 1,2-dicyanoethyl, 1,3-dicyanoisopropyl, 2,3-dicyano-tert-butyl, 1,2,3-tricyanopropyl, nitromethyl, 1-nitroethyl, 2-nitroethyl, 2-nitroisobutyl, 1,2-dinitroethyl, 1,3-dinitroisopropyl, 2,3-dinitro-tert-butyl, or 1,2,3-trinitropropyl;andAr1=Ph, 1-naphthyl, 2-naphthyl, 1-anthryl, 2-anthryl, 9-anthryl, 1-phenanthryl, 2-phenanthryl, 2-phenanthryl, 3-phenanthryl, 4-phenanthryl, 9-phenanthryl, 1-naphtetraphenyl, 2-naphtetraphenyl, 9-naphtetraphenyl, 1-pyrenyl, 2-pyrenyl, 4-pyrenyl, 2-biphenylyl, 3-biphenylyl, 4-biphenylyl, p-terphenyl-4-yl, p-terphenyl-3-yl, p-terphenyl-2-yl, m-terphenyl-4-yl, m-terphenyl-3-yl, m-terphenyl-2-yl, o-tolyl, m-tolyl, p-tolyl, p-tert-butyl phenyl, p-(2-phenylpropyl) phenyl, 3-methyl-2-naphthyl, 4-methyl-1-naphthyl, 4-methyl-1-anthryl, 4'-methyl biphenylyl or 4"-tert-butyl-p-terphenyl-4-yl, 2-pyrryl, 3-pyrryl, pyridyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, 2-indyl, 3-indyl, 4-indyl, 5-indyl, 6-indyl, 7-indyl, 1-isoindyl, 3-isoindyl, 4-isoindyl, 5-isoindyl, 6-isoindyl, 7-isoindyl, 2-furyl, 3-furyl, 2-benzofuranyl, 3-benzofuranyl, 4-benzofuranyl, 5-benzofuranyl, 6-benzofuranyl, 7-benzofuranyl, 1-isobenzofuranyl, 3-isobenzofuranyl, 4-isobenzofuranyl, 5-isobenzofuranyl, 6-isobenzofuranyl, 7-isobenzofuranyl, 2-quinolyl, 3-quinolyl, 4-quinolyl, 5-quinolyl, 6-quinolyl, 7-quinolyl, 8-quinolyl, 1-isoquinolyl, 3-isoquinolyl, 4-isoquinolyl, 5-isoquinolyl, 6-isoquinolyl, 7-isoquinolyl, 8-isoquinolyl, 2-quinoxalinyl, 5-quinoxalinyl, 6-quinoxalinyl, 1-carbazyl, 2-carbazyl, 3-carbazyl, 4-carbazyl, 1-phenanthridinyl, 2-phenanthridinyl, 3-phenanthridinyl, 4-phenanthridinyl, 6-phenanthridinyl, 7-phenanthridinyl, 8-phenanthridinyl, 9-phenanthridinyl, 10-phenanthridinyl, 1-acridinyl, 2-acridinyl, 3-acridinyl, 4-acridinyl, 9-acridinyl, 1,7-phenanthrolin-2-yl, 1,7-phenanthrolin-3-yl, 1,7-phenanthrolin-4-yl, 1,7-phenanthrolin-5-yl, 1,7-phenanthrolin-6-yl, 1,7-phenanthrolin-8-yl, 1,7-phenanthrolin-9-yl, 1,7-phenanthrolin-10-yl, 1,8-phenanthrolin-2-yl, 1,8-phenanthrolin-3-yl, 1,8-phenanthrolin-4-yl, 1,8-phenanthrolin-5-yl, 1,8-phenanthrolin-6-yl, 1,8-phenanthrolin-7-yl, 1,8-phenanthrolin-9-yl, 1,8-phenanthrolin-10-yl, 1,9-phenanthrolin-2-yl, 1,9-phenanthrolin-3-yl, 1,9-phenanthrolin-4-yl, 1,9-phenanthrolin-5-yl, 1,9-phenanthrolin-6-yl, 1,9-phenanthrolin-7-yl, 1,9-phenanthrolin-8-yl, 1,9-phenanthrolin-10-yl, 1,10-phenanthrolin-2-yl, 1,10-phenanthrolin-3-yl, 1,10-phenanthrolin-4-yl, 1,10-phenanthrolin-5-yl, 2,9-phenanthrolin-1-yl, 2,9-phenanthrolin-3-yl, 2,9-phenanthrolin-4-yl, 2,9-phenanthrolin-5-yl, 2,9-phenanthrolin-6-yl, 2,9-phenanthrolin-7-yl, 2,9-phenanthrolin-8-yl, 2,9-phenanthrolin-10-yl, 2,8-phenanthrolin-1-yl, 2,8-phenanthrolin-3-yl, 2,8-phenanthrolin-4-yl, 2,8-phenanthrolin-5-yl, 2,8-phenanthrolin-6-yl, 2,8-phenanthrolin-7-yl, 2,8-phenanthrolin-9-yl, 2,8-phenanthrolin-10-yl, 2,7-phenanthrolin-1-yl, 2,7-phenanthrolin-3-yl, 2,7-phenanthrolin-4-yl, 2,7-phenanthrolin-5-yl, 2,7-phenanthrolin-6-yl, 2,7-phenanthrolin-8-yl, 2,7-phenanthrolin-9-yl, 2,7-phenanthrolin-10-yl, 1-phenazinyl, 2-phenazinyl, 1-phenothiazinyl, 2-phenothiazinyl, 3-phenothiazinyl, 4-phenothiazinyl, 1-phenoxazinyl, 2-phenoxazinyl, 3-phenoxazinyl, 4-phenoxazinyl, 2-oxazolyl, 4-oxazolyl, 5-oxazolyl, 2-oxadizolyl, 5-oxadizolyl, 3-furazanyl, 2-thienyl, 3-thienyl, 2-methyl-pyrrol-1-yl, 2-methyl-pyrrol-3-yl, 2-methyl-pyrrol-4-yl, 2-methyl-pyrrol-5-yl, 3-methyl-pyrrol-1-yl, 3-methyl-pyrrol-2-yl, 3-methyl-pyrrol-4-yl, 3-methyl-pyrrol-5-yl, 2-tert-butyl pyrrol-4-yl, 3-(2-phenylpropyl)-pyrrol-1-yl, 2-methyl-1-indyl, 4-methyl-1-indyl, 2-methyl-3-indyl, 4-methyl-1-indyl, 2-tert-butyl-1-indyl, 4-tert-butyl-1-indyl, 2-tert-butyl-3-indyl or 4-tert-butyl-3-indyl.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (claimed): The derivatives are prepared by:(A) dissolving raw material of 2-bromo-1-1-hypnone with substituents R2, R3, R2'and R3'and pyridine (mol ratio of the two compositions is 1:1) in an organic solvent, stirring and filtering to obtain pyridine bromide;(B) under inert gases, mixing the obtained pyridine hydrobromide dialdehyde having substituents R1 and R'1 and pyridine having substituents R4, R'4, R5, and R'5 with a mol ratio of 2:1:2, mixing ammonium acetate as catalyst, dissolving the mixture in glacial acetic acid to reflux, filtering product out, and obtaining polyaryl-substituted pyridine derivatives by column chromatography or recrystallization; or(C) under inert gases, mixing the obtained pyridine bromide, diketone having substituents R1, R'1, R5 and R'5 and benzaldehyde having substituents R4 and R'4 with a mol ratio of 2:1:2, mixing ammonium acetate as catalyst, dissolving the mixture in glacial acetic acid to reflux, filtering product out, and obtaining polyaryl-substituted pyridine derivatives by column chromatography or recrystallization.