Optical recording medium
    12.
    发明专利

    公开(公告)号:AU744048B2

    公开(公告)日:2002-02-14

    申请号:AU6747398

    申请日:1998-04-08

    Applicant: SONY CORP

    Abstract: An optical recording medium having a structure that a recording layer containing organic coloring matter and a reflecting layer are sequentially formed on a light-transmissive substrate thereof so that an information signal is recorded/reproduced when the optical recording medium is irradiated with a laser beam made incident on the light-transmissive substrate, the optical recording medium incorporating: a light absorbing layer which is formed more adjacent to an incident point of the laser beam as compared with the reflecting layer, through which the laser beam passes and which absorbs light in an absorption wavelength region for the recording layer. Photo-deterioration of the recording layer composed of organic coloring matter occurs owing to a portion of natural light which has the wavelength which exists in the absorbing wavelength region for the organic coloring matter. In the optical recording medium having the above-mentioned light absorbing layer, natural light made incident on the reflecting layer is shielded by the reflecting layer. Therefore, the recording layer is not irradiated with natural light. A portion of light of natural light made incident on the substrate which has the wavelength which exists in the absorbing wavelength region for the organic coloring matter is absorbed by the light absorbing layer and, therefore, attenuated. As a result, the quantity of light with which the recording layer is irradiated can be reduced.

    15.
    发明专利
    未知

    公开(公告)号:DE60040124D1

    公开(公告)日:2008-10-16

    申请号:DE60040124

    申请日:2000-07-28

    Applicant: SONY CORP

    Abstract: An organic electroluminescent device of the type comprises an organic layer which has a luminescent region and contains at least one styryl compound represented by the following general formula (1) wherein R and R independently represent an aryl group of the following general formula (2), (3) or (4) wherein R to R independently represents a specific substituent group such as a hydrogen atom, a methoxy group or the like, and X represents a substituted or unsubstituted aryl or cyclic hydrocarbon group.

    17.
    发明专利
    未知

    公开(公告)号:DE69911303T2

    公开(公告)日:2004-07-01

    申请号:DE69911303

    申请日:1999-05-17

    Applicant: SONY CORP

    Abstract: An organic electroluminescent device of the type comprises an organic layer 5, 5a or 5b having a luminescent region and provided between an anode 2 and a cathode 3. The organic layer contains a distyryl compound represented by the following general formula (1). Chemical Formula 1 wherein R , R , R and R are, respectively, groups which may be the same or different and independently represent an aryl group of the following general formula (2). in which R , R , R , R and R may be the same or different and, respectively, represent a hydrogen atom provided that at least one of them is a saturated or unsaturated alkoxyl group or an alkyl group, and R , R , R and R may be the same or different and, respectively, represent a hydrogen atom provided that at least one of them represents a cyano group, a nitro group or a halogen atom.

    18.
    发明专利
    未知

    公开(公告)号:ID24594A

    公开(公告)日:2000-07-27

    申请号:ID991167

    申请日:1998-04-08

    Applicant: SONY CORP

    Abstract: An optical recording medium having a structure that a recording layer containing organic coloring matter and a reflecting layer are sequentially formed on a light-transmissive substrate thereof so that an information signal is recorded/reproduced when the optical recording medium is irradiated with a laser beam made incident on the light-transmissive substrate, the optical recording medium incorporating: a light absorbing layer which is formed more adjacent to an incident point of the laser beam as compared with the reflecting layer, through which the laser beam passes and which absorbs light in an absorption wavelength region for the recording layer. Photo-deterioration of the recording layer composed of organic coloring matter occurs owing to a portion of natural light which has the wavelength which exists in the absorbing wavelength region for the organic coloring matter. In the optical recording medium having the above-mentioned light absorbing layer, natural light made incident on the reflecting layer is shielded by the reflecting layer. Therefore, the recording layer is not irradiated with natural light. A portion of light of natural light made incident on the substrate which has the wavelength which exists in the absorbing wavelength region for the organic coloring matter is absorbed by the light absorbing layer and, therefore, attenuated. As a result, the quantity of light with which the recording layer is irradiated can be reduced.

    20.
    发明专利
    未知

    公开(公告)号:DE60044174D1

    公开(公告)日:2010-05-27

    申请号:DE60044174

    申请日:2000-10-31

    Applicant: SONY CORP

    Abstract: An organic electroluminescent device has a single hetero structure comprising, on a glass substrate, an ITO transparent electrode, a hole transport layer, an electron transport layer and a metal electrode superposed in this order wherein a hole-blocking layer containing a bathophenanthroline derivative of the following general formula is interposed between the hole transport layer and the electron transport layer. In this way, the electron-hole-re-combination in the hole transporting luminescent layer can be promoted. General Formula of Bathophenanthoroline Derivative: wherein X and Y may be the same or different and independently represent a hydrogen atom except the case where a hydrogen atom is at the 2 or 9 position, a substituted or unsubstituted alkyl group except the case where a methyl group is at the 2 or 9 position, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted amino group, a halogen atom, a nitro group, a cyano group or a hydroxyl group provided that at least one of these groups is contained at an arbitrary position.

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