# US 12,004,423 B2 · Organic light emitting device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,004,423 B2 - Document ID: US12004423B2 - Status: Granted - Kind: B2 - Application number: 17/057,419 - Filed: 2019-07-25 - Published: 2021-07-15 - Granted: 2024-06-04 - Earliest claimed: 2018-07-25 - Assignees: LG Chem, Ltd. - Applicants: LG Chem, Ltd. - Inventors: Jungoh Huh; Sung Kil Hong; Dong Uk Heo; Miyeon Han; Jae Tak Lee; Junghoon Yang; Heekyung Yun - Web page: https://patentgrep.com/patent/US12004423B2 ## CPC - H10K 85/615: {Polycyclic condensed aromatic hydrocarbons, e.g. anthracene} - H10K 85/654: {comprising only nitrogen as heteroatom (H10K85/652 takes precedence)} - H10K 85/6572: {comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole} - H10K 85/6574: {comprising only oxygen in the heteroaromatic polycondensed ring system, e.g. cumarine dyes} - H10K 50/11: characterised by the electroluminescent [EL] layers - H10K 50/131: {with spacer layers between the electroluminescent layers} - H10K 50/18: Carrier blocking layers - H10K 85/40: Organosilicon compounds, e.g. TIPS pentacene - H10K 2101/10: Triplet emission - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract An organic light emitting device having a first organic material layer that includes a compound of Chemical Formula 1 and the second organic material layer that includes a compound of Chemical Formula 2, ## Claims ### Claim 1 An organic light emitting device comprising: a first electrode; a second electrode provided opposite to the first electrode; and a first organic material layer and a second organic material layer provided between the first electrode and the second electrode, wherein the first organic material layer includes a compound of the following Chemical Formula 1; and the second organic material layer includes a compound of the following Chemical Formula 2: in Chemical Formula 1, L1 and L2 are the same as or different from each other, and each independently a direct bond; or a substituted or unsubstituted arylene group; R1 and R2 are the same as or different from each other, and each independently hydrogen; deuterium; a halogen group; a cyano group; a nitro group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted haloalkyl group; a substituted or unsubstituted haloalkoxy group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or bond to adjacent groups to form a substituted or unsubstituted ring; n1 is an integer of 0 to 7, and when n1 is 2 or greater, the two or more R1s are the same as or different from each other; n2 is an integer of 0 to 9, and when n2 is 2 or greater, the two or more -L2-R2s are the same as or different from each other; and n3 is 1 or 2, and when n3 is 2, substituents in the two parentheses are the same as or different from each other, and 1≤n2+n3≤10, in Chemical Formula 2, at least one of X1 to X3 is N, and the rest are CR; R and Ar1 to Ar3 are the same as or different from each other, and each independently hydrogen; deuterium; a cyano group; a nitrile group; a substituted or unsubstituted silyl group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted haloalkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or bond to adjacent groups to form a substituted or unsubstituted ring, and at least one of Ar1 to Ar3 is of the following Chemical Formula 3; L11 to L13 are the same as or different from each other, and each independently a direct bond; a substituted or unsubstituted arylene group; or a substituted or unsubstituted divalent heterocyclic group; and m1 to m3 are each an integer of 0 to 3, and when m1 to m3 are each 2 or greater, substituents in the two or more parentheses are the same as or different from each other, in Chemical Formula 3, any one of R11 to R26 is linked to any one of L11 to L13, and the rest are hydrogen; deuterium; a cyano group; a nitrile group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or bond to adjacent groups to form a substituted or unsubstituted ring. ### Claim 2 (depends on 1) The organic light emitting device of claim 1, wherein the first organic material layer and the second organic material layer are provided adjacent to each other. ### Claim 3 (depends on 1) The organic light emitting device of claim 1, wherein the first organic material layer is a light emitting layer. ### Claim 4 (depends on 3) The organic light emitting device of claim 3, wherein the light emitting layer includes one or more types of the compound of Chemical Formula 1 as a host of the light emitting layer. ### Claim 5 (depends on 1) The organic light emitting device of claim 1, wherein the second organic material layer is a hole blocking layer or an electron control layer. ### Claim 6 (depends on 1) The organic light emitting device of claim 1, wherein the compound of Chemical Formula 1 is selected from among the following structures: ### Claim 7 (depends on 1) The organic light emitting device of claim 1, wherein the compound of Chemical Formula 2 is selected from among the following structures: ### Claim 8 (depends on 3) The organic light emitting device of claim 3, further comprising one or more light emitting layers. ### Claim 9 (depends on 3) The organic light emitting device of claim 3, further comprising one or more light emitting layers having a maximum light emission peak appearing in a wavelength range different from a wavelength range of a maximum light emission peak that the light emitting layer including one or more types of the compound of Chemical Formula 1 has. ### Claim 10 (depends on 8) The organic light emitting device of claim 8, wherein the light emitting layer including one or more types of the compound of Chemical Formula 1 further includes a fluorescent dopant. ### Claim 11 (depends on 9) The organic light emitting device of claim 9, wherein the one or more light emitting layers having a maximum light emission peak appearing in a wavelength range different from a wavelength range of a maximum light emission peak that the light emitting layer including one or more types of the compound of Chemical Formula 1 has include a phosphorescent dopant.