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    • 6. 发明申请
    • ORGANIC LIGHT EMITTING DEVICE AND MATERIALS FOR USE IN SAME
    • US20130306961A1
    • 2013-11-21
    • US13995216
    • 2011-02-11
    • Hitoshi YamamotoMichael S. WeaverJulia J. BrownKazuki NishimuraToshihiro IwakumaTomoki KatoMitsunori Ito
    • Hitoshi YamamotoMichael S. WeaverJulia J. BrownKazuki NishimuraToshihiro IwakumaTomoki KatoMitsunori Ito
    • H01L51/50
    • H01L51/5028H01L51/0059H01L51/0067H01L51/0072H01L51/0085H01L51/5016
    • The present invention provides an OLED in which an organic thin film emissive layer comprising a single layer or plural layers between a cathode and an anode, wherein the organic thin film layer comprises at least one organic light emitting layer, wherein at least one light emitting layer comprises at least one host material and at least one phosphorescent emitter material, wherein the host material comprises a substituted or unsubstituted hydrocarbon compound having the chemical structure represented by the following formula: wherein at least one of Ar1 to Ar3 is represented by the following formula: wherein at least X1 to X3 are independently a nitrogen atom or CR2, provided that two of X1 to X3 are a nitrogen atom, R1 is a linear or branched alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 3 to 10 ring carbon atoms, a substituted or unsubstituted silyl group, an aryl group having 6 to 50 ring carbon atoms, a heteroaryl group having 5 to 50 ring atoms, a halogen atom or a cyano group, R2 is a hydrogen atom or a group represented by R1, a is an integer of 1 to 2 and n is an integer of 0 to 3, L1 is a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, L2 is a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heteroarylene group having 5 to 50 ring atoms, at most two of Ar1 to Ar3 that are not the group of formula (2) are independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, when L1, L2 and/or at most two of Ar1 to Ar3 that are not the group of formula (2) are a substituted group, the substitutes are independently a linear or branched alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 3 to 10 ring carbon atoms, a substituted or unsubstituted silyl group, an aryl group having 6 to 14 ring carbon atoms, a heteroaryl group having 5 to 20 ring atoms, a halogen atom or a cyano group, when two or more of Ar1 to Ar3 are the groups of formula (2), the groups of formula (2) may be the same or different, when a is 2, R1s may be the same or different, and when n is 2 or more, L2s may be the same or different; and the phosphorescent emitter material comprises a phosphorescent organometallic complex having a substituted chemical structure represented by one of the following partial chemical structures represented by the following formulas: wherein each R is independently selected from the group consisting of H, alkyl, alkenyl, alkynyl, CN, CF3, CnF2n+1, trifluorovinyl, CO2R, C(O)R, NR2, NO2, OR, halo, aryl, heteroaryl, substituted heteroaryl or a heterocyclic group.
    • 7. 发明申请
    • ORGANIC LIGHT EMITTING DEVICE AND MATERIALS FOR USE IN SAME
    • US20130306960A1
    • 2013-11-21
    • US13995193
    • 2011-02-11
    • Hitoshi YamamotoMichael S. WeaverJulia J. BrownKazuki NishimuraToshihiro IwakumaMitsunori Ito
    • Hitoshi YamamotoMichael S. WeaverJulia J. BrownKazuki NishimuraToshihiro IwakumaMitsunori Ito
    • H01L51/50
    • H01L51/5028H01L51/0054H01L51/0058H01L51/0059H01L51/0072H01L51/0085H01L51/5012
    • The present invention provides an OLED in which an organic thin film emissive layer comprising a single layer or plural layers between a cathode and an anode, wherein the organic thin film layer comprises at least one organic light emitting layer, wherein at least one light emitting layer comprises at least one host material and at least one phosphorescent emitter material, wherein the host material comprises a substituted or unsubstituted hydrocarbon compound having the chemical structure represented by the following formula (1): wherein R2 represents a hydrogen atom, a benzene ring, a condensed aromatic hydrocarbon ring, a dibenzofuran ring or a group represented by Ar3—R3; Ar1 to Ar3 each independently represent a benzene ring, a condensed aromatic hydrocarbon ring or a dibenzofuran ring; R1 and R3 each independently represent a hydrogen atom, a benzene ring, a condensed aromatic hydrocarbon ring, or a dibenzofuran ring; the condensed aromatic hydrocarbon ring represented by R1 to R3 and Ar1 to Ar3 is selected from the group consisting of a naphthalene ring, a chrysene ring, a fluoranthene ring, a triphenylene ring, a phenanthrene ring, a benzophenanthrene ring, a dibenzophenanthrene ring, a benzotriphenylene ring, a benzochrysene ring, and a benzo[b]fluoranthene ring; and R1 to R3, Ar1 to Ar3 and 2,7-disubstituted naphthalene ring each independently may have one or more substituents; with the proviso that when Ar1 and Ar2 each represents a condensed aromatic hydrocarbon constituted by four or more-membered ring, Ar1 and Ar2 are different from each other; wherein when Ar1 and Ar2 each represents a benzene ring, R1 and R2 cannot both be a hydrogen atom or a naphthalene ring at the same time; and when R1 and R2 each represents a hydrogen atom, Ar1 and Ar2 cannot both be a naphthalene ring at the same time or a combination of a naphthalene ring and a benzene ring; and the phosphorescent emitter material comprises a phosphorescent organometallic complex having a substituted chemical structure represented by one of the following partial chemical structures represented by the following formulas: wherein each R is independently selected from the group consisting of H, alkyl, alkenyl, alkynyl, CN, CF3, CnF2n+1, trifluorovinyl, CO2R, C(O)R, NR2, NO2, OR, halo, aryl, heteroaryl, substituted heteroaryl or a heterocyclic group.
    • 9. 发明授权
    • Electrophoretic display sheet, electrophoretic display, method for producing electrophoretic display, and electronic apparatus
    • 电泳显示片,电泳显示器,电泳显示器的制造方法和电子设备
    • US08427735B2
    • 2013-04-23
    • US12797128
    • 2010-06-09
    • Hitoshi Yamamoto
    • Hitoshi Yamamoto
    • G02B26/00
    • G02F1/167G02F2001/1678
    • An electrophoretic display sheet includes: a substrate; at least one kind of electrophoretic particles; an electrophoretic dispersion liquid containing the at least one kind of electrophoretic particles; a microcapsule having a shell for enclosing the electrophoretic dispersion liquid therein; a microcapsule-containing layer provided on a surface side of the substrate to contain the microcapsule; and a binder having a function of retaining the microcapsule and having viscosity under room temperature, the microcapsule-containing layer including the microcapsule and the binder; and the electrophoretic particles being contained in the electrophoretic dispersion liquid in a ratio of 30% to 60% wt. with respect to a weight of the electrophoretic dispersion liquid.
    • 电泳显示片包括:基板; 至少一种电泳粒子; 含有所述至少一种电泳粒子的电泳分散液; 一种具有壳体的微胶囊,用于在其中包封电泳分散液; 设置在所述基板的表面侧以容纳所述微胶囊的含微胶囊的层; 以及具有保持微胶囊并且在室温下具有粘度的功能的粘合剂,所述含微胶囊的层包含微胶囊和粘合剂; 并且电泳粒子以30%至60%重量比的比例包含在电泳分散液中。 相对于电泳分散液的重量。