Method for preparing indolenaphthopyrans

    公开(公告)号:US11629151B2

    公开(公告)日:2023-04-18

    申请号:US17416079

    申请日:2018-12-21

    摘要: Provided is a synthetic intermediate for the preparation of photochromic indolenaphthopyran compounds having the core skeletal structure of Formula (I): wherein m is 0 to 4, n is 0 to 4, R1 and R2 are each independently hydroxyl, cyano, (meth)acrylate, amino, halo, substituted or unsubstituted alkyl, boronic ester, boronic acid, polyether, polyester, polycarbonate, polyurethane, substituted or unsubstituted aryl, substituted or unsubstituted heterocycloaryl, substituted or unsubstituted heteroaryl, substituted or unsubstituted alkoxy, substituted or unsubstituted aryloxy, substituted or unsubstituted alkylthio, substituted or unsubstituted arylthio, ketone, aldehyde, ester, carboxylic acid, carboxylate, amide, carbonate, carbamate, urea, siloxane, alkoxysilane, or polysiloxane; R3 is substituted or unsubstituted 2-pyridyl or substituted or unsubstituted 2-quinolyl; and R4 is hydrogen, substituted or unsubstituted alkyl, alkoxymethyl, substituted or unsubstituted silyl, or acyl. Also provided is a process for producing an indolenaphthol compound which includes cyclizing the phenylnaphthol compound of Formula (I) in the presence of a catalyst.

    COMPOUND, POLYMER, AND ORGANIC MATERIAL, AND OPTICAL APPARATUS, OPTICAL PART, AND IMAGE DISPLAY APPARATUS USING THE ORGANIC MATERIAL

    公开(公告)号:US20220289678A1

    公开(公告)日:2022-09-15

    申请号:US17625674

    申请日:2020-06-19

    摘要: To provide a compound that is capable of improving the function of an organic material.
    The present technology provides a compound represented by the following general formula (1). In the general formula (1), X1 represents an oxygen atom, a nitrogen atom, a phosphorus atom, a carbon atom, or a silicon atom.
    Y1 and Y2 each represent a benzene ring or a naphthalene ring, and both Y1 and Y2 do not represent benzene rings.
    R1 to R3 each represent a hydrogen or a substituent group represented by *—Z1(R4)d (* represents a bonding site).
    Z1 represents a single bond, a saturated hydrocarbon group having a valence of 2 or higher, or an unsaturated hydrocarbon group having a valence of 2 or higher, the saturated hydrocarbon group or the unsaturated hydrocarbon group optionally having an ether bond and/or a thioether bond.
    R4 represents a hydrogen or a polymerizable substituent group.

    Organic light-emitting diode having alleviated luminance reduction in low dynamic range

    公开(公告)号:US11251378B2

    公开(公告)日:2022-02-15

    申请号:US15763090

    申请日:2016-09-13

    申请人: SFC CO., LTD.

    摘要: The present disclosure relates to an organic light-emitting diode which can operate at a low voltage with high efficiency and exhibits the effect of having an alleviated luminance reduction rate in a low dynamic range. More particularly, the organic light-emitting diode comprises: a first electrode; a second electrode facing the first electrode; and a light-emitting layer and a charge balance control layer arranged sequentially between the first and the second electrode, wherein the light-emitting layer includes at least one of amine derivative compounds represented by the following Chemical Formula A and the charge balance control layer includes at least one of anthracene derivative compounds represented by the following Chemical Formula B or C. The structures of Chemical Formulas A, B, and C are as defined in the specification.

    ORGANIC LIGHT EMITTING DEVICE
    8.
    发明申请

    公开(公告)号:US20220029102A1

    公开(公告)日:2022-01-27

    申请号:US17495551

    申请日:2021-10-06

    摘要: An organic light emitting device including an anode; a hole transport region on the anode; an emission layer on the hole transport region; an electron transport region on the emission layer; and a cathode on the electron transport region, wherein the hole transport region includes: a first hole transport layer including a first hole transport material represented by the following Formula 1 or a second hole transport material represented by the following Formula 2; and a second hole transport layer on the first hole transport layer, the second hole transport layer including a third hole transport material represented by the following Formula 3 or a fourth hole transport material represented by the following Formula 4: