Display correctiing circuit for organic EL panel, display correctiing circuit and display device

    公开(公告)号:AU2008246695A1

    公开(公告)日:2008-11-13

    申请号:AU2008246695

    申请日:2008-04-24

    Applicant: JOLED INC

    Abstract: There is provided a display adjusting circuit for performing adjustment for display on a video signal to be supplied to an organic electroluminescence panel, the display adjusting circuit of the organic electroluminescence panel, comprising a linear gamma circuit where a video signal on which a predetermined gamma adjustment has been performed is supplied to be converted into a video signal with a linear gamma characteristic by cancelling the gamma adjustment of the supplied video signal and to be output, an adjusting circuit to which the video signal output from the linear gamma circuit is supplied, and a panel gamma circuit where the video signal output from the adjusting circuit is supplied to be converted into a video signal with a gamma characteristic corresponding to a gamma characteristic of the organic electroluminescence panel and to be output, the adjusting circuit including a detecting unit for detecting a driving state or a driving history of the organic electroluminescence panel from the supplied video signal, an adjusting unit for performing adjustment on the video signal supplied to the organic electroluminescence panel by a detecting output of the detecting unit.

    Display device, method for correcting luminance nonuniformity and computer program

    公开(公告)号:AU2008273295B2

    公开(公告)日:2013-08-01

    申请号:AU2008273295

    申请日:2008-07-11

    Applicant: JOLED INC

    Abstract: A display device is provided with a nonuniformity correction information storage section (164), which stores nonuniformity correction information for correcting luminance nonuniformity of a display section; and a correcting section (130), which corrects luminance nonuniformity of the display section by performing signal processing to a video signal having linear characteristics, by reading out nonuniformity correction information from the nonuniformity correction information storage section (164). The nonuniformity correcting section (130) corrects emission nonuniformity of the display section by combining first correction, i.e., correctionin the horizontal direction or vertical direction of the display section, and second correction, i.e., correction of a portion where luminance nonuniformity is generated on the display section.

    Display apparatus, display apparatus driving method, and computer program

    公开(公告)号:AU2008258912B2

    公开(公告)日:2013-12-05

    申请号:AU2008258912

    申请日:2008-06-02

    Applicant: JOLED INC

    Abstract: A display apparatus comprises a light emission amount calculating part that calculates a light emission amount from a video signal having a linearity characteristic; a light emission amount parameter calculating part that calculates, based on the calculated light emission amount, a light emission amount parameter corresponding to the light emission amount for each pixel or each pixel group comprising a plurality of pixels; a light emission amount parameter storing part that stores the calculated light emission amount parameters with each of the calculated light emission amount parameters being associated with the respective pixel or pixel group; a peak detecting part that determines the peak value from among all of the stored light emission amount parameters associated with the respective pixels or pixel groups; a coefficient calculating part that calculates, based on the detected peak value, a coefficient to be used for adjusting the brightness; and a coefficient multiplying part that multiplies the video signal by the calculated coefficient and outputs it.

    Display device, picture signal processing method, and program

    公开(公告)号:AU2008273388B2

    公开(公告)日:2013-08-15

    申请号:AU2008273388

    申请日:2008-07-08

    Applicant: JOLED INC

    Abstract: A display unit having a display section where luminescent elements that are self-luminescent depending on the amount of the current are arranged in a matrix pattern. The display unit includes a luminescence amount specifying section to set up a reference duty for specifying the luminescence amount per unit time for each of the luminescent elements according to the video information of incoming video signals, and an adjustment section that adjusts an actual duty for specifying a luminescence time required for the luminescent elements to produce luminescence per unit time on the basis of the reference duty to fall within a specified range and that adjusts the gain of the video signals such that the luminescence amount specified by the actual duty and the gain of the video signals may be the same as that specified by the reference duty.

    Tinte für organische Elektrolumineszenz

    公开(公告)号:DE102017117218B4

    公开(公告)日:2022-12-08

    申请号:DE102017117218

    申请日:2017-07-31

    Applicant: JOLED INC

    Abstract: Tinte für organische Elektrolumineszenz, dadurch gekennzeichnet, dass sie Folgendes umfasst:ein zur organischen Elektrolumineszenz beitragendes Material; undein organisches Lösungsmittel,wobei eine relative Energiedifferenz RED, die auf Hansen-Löslichkeitsparametern basiert, die dem zur organischen Elektrolumineszenz beitragenden Material beziehungsweise dem organischen Lösungsmittel zugeordnet werden, weniger als 0,5 beträgt,wobei das zur organischen Elektrolumineszenz beitragende Material ein Copolymer auf Fluorenbasis mit einem Molekulargewicht von 1000 oder weniger ist,das organische Lösungsmittel aus Dimethylsalicylat und 2-Cyclopenten-1-on ausgewählt ist,die relative Energiedifferenz (RED) durch die Formel (1) dargestellt wird:RED=Ra/Rowobei Rader Abstand zwischen den dem gelösten Stoff zugeordneten Hansen-Löslichkeitsparameter (HSP) und den dem Lösungsmittel zugeordneten HSP ist, wie durch die Formel (2) dargestellt:Ra={4(δDS−δDL)2+(δPS−δPL)2+(δHS−δHL)2}0,5wobei δDSdie auf die London-Dispersionskraft zurückzuführende Energie des gelösten Stoffs ist, δPSdie auf dipolare Wechselwirkung zurückzuführende Energie des gelösten Stoffs ist, δHSdie auf Wasserstoffbindung zurückzuführende Energie des gelösten Stoffs ist, δDLdie auf die London-Dispersionskraft zurückzuführende Energie des Lösungsmittels ist, δPLdie auf dipolare Wechselwirkung zurückzuführende Energie des Lösungsmittels ist und δHLdie auf Wasserstoffbindung zurückzuführende Energie des Lösungsmittels ist,wobei ROder Wechselwirkungsradius des gelösten Stoffs bestimmt wird, indem ein gelöster Stoff, dessen ROgesucht wird, und mehrere Arten von Lösungsmitteln, deren HSP bereits bekannt sind, präpariert wird, anschließend wird für jedes Lösungsmittel ein Löslichkeitstest mit dem gelösten Stoff durchgeführt wird, bei dem Löslichkeitstest die HSP, die einem Lösungsmittel zugeordnet werden, das Löslichkeit zeigt, und die HSP, die einem Lösungsmittel zugeordnet werden, das keine Löslichkeit zeigt, jeweils im Hansen-Raum eingetragen werden, anschließend auf Basis der eingetragenen HSP, die jedem Lösungsmittel zugeordnet werden, im Hansen-Raum eine virtuelle Kugel (Hansen-Kugel) gebildet wird, welche die HSP enthält, die einem Lösungsmittel zugeordnet werden, das Löslichkeit zeigt, während sie die HSP, die einem Lösungsmittel zugeordnet werden, das keine Löslichkeit zeigt, nicht beinhaltet, wobei der Radius der Hansen-Kugel Roist, und wobeies sich bei dem zur organischen Elektrolumineszenz beitragenden Material um ein lichtaussendendes Material handelt.

    Tinte für organische EL
    6.
    发明专利

    公开(公告)号:DE102017117218A1

    公开(公告)日:2018-02-01

    申请号:DE102017117218

    申请日:2017-07-31

    Applicant: JOLED INC

    Abstract: Gemäß einer Ausführungsform umfasst eine Tinte für organische EL ein zur organischen EL beitragendes Material und ein organisches Lösungsmittel. Eine relative Energiedifferenz, die auf Hansen-Löslichkeitsparametern basiert, die dem zur organischen EL beitragenden Material bzw. dem organischen Lösungsmittel zugeordnet werden, beträgt weniger als 0,5.

    Display device and method for driving display device

    公开(公告)号:AU2008273569B2

    公开(公告)日:2013-08-01

    申请号:AU2008273569

    申请日:2008-06-05

    Applicant: JOLED INC

    Abstract: A display device has a display section including pixels having light-emitting elements spontaneously emitting light depending on a current amount and pixel circuits for controlling current to be applied to the light emitting elements according to a video signal; scan lines for supplying a selection signal, which selects a pixel to be emitted, to the pixels at a predetermined scan cycle; data lines for supplying the video signal to the pixels; and transistors receiving the selection signal and driving the pixels, all of which are disposed in a matrix form. The display device comprises a gamma transformer for transforming the video signal so as to have a gamma characteristic and a transistor controller for controlling current-voltage characteristics of the transistors so as to have a linear characteristic if the gamma characteristic of the signal transformed by the gamma transformer is multiplied by the current-voltage characteristics of the transistors.

    Display device, video signal processing method, and program

    公开(公告)号:AU2008254089B2

    公开(公告)日:2013-05-02

    申请号:AU2008254089

    申请日:2008-05-19

    Applicant: JOLED INC

    Abstract: A display device includes a display unit formed by pixels arranged in a matrix. Each of the pixels has a light emitting element which emits light in accordance with a current amount and a pixel circuit which controls the current to be applied to the light emitting element according to a voltage signal. The display device includes: an average luminance calculation unit (200) which calculates an average of luminance of inputted video signals during a predetermined period; and a light emission time setting unit (202) which sets a real duty for defining the light emission time for causing the light emission elements to emit light for each frame in accordance with the average luminance calculated by the average luminance calculation unit (200). The light emission time setting unit (202) sets the real duty so that the light emission amount defined by a preset reference duty and a maximum luminance of the video signal is identical to the light emission amount defined by the set real duty and the average luminance.

    Display device, display device drive method, and computer program

    公开(公告)号:AU2008254180B2

    公开(公告)日:2012-12-06

    申请号:AU2008254180

    申请日:2008-05-15

    Applicant: JOLED INC

    Abstract: Provided is a display device including: a still image detection unit (122) which inputs a video signal having a linear characteristic and calculates an average value of signal levels of a video signal having a linear characteristic per pixel; a storage unit (150) which successively stores the average value calculated by the still image detection unit (122); a still image judging unit (162) which judges whether an image displayed on the current screen is a still image according to a difference between the average value stored in the storage unit (150) and the average value immediately before; a coefficient calculation unit (164) which calculates a coefficient to lower the luminance of an image to be displayed on a display unit when the still image judging unit (162) has judged that a still image is displayed on the current screen; and a signal level correction unit (128) which multiplies the video signal by the coefficient calculated by the coefficient calculation unit (164).

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