PIXEL CIRCUIT, DISPLAY DEVICE, AND METHOD FOR DRIVING SAME

    公开(公告)号:US20180174507A1

    公开(公告)日:2018-06-21

    申请号:US15579989

    申请日:2016-06-29

    Abstract: The purpose of the present invention is to suppress the fluctuation of a data line voltage that occurs when an analog voltage signal is sampled and held in a data line in a display device provided with a current-driven display element. Transistors (SWr, SWG, SWb) of each demultiplexer (252) are successively switched on, for each predetermined period, in a selection period of a write control line (SW_LR(i)). In a period when the transistor (SWr) is switched on, an analog video signal (Dj) from a data voltage output unit circuit (211d) is applied to a data line (SLrj) and a pixel circuit (50r). When the transistor SWr is then switched off, the voltage held by the data line (SLrj) decreases below the voltage of the analog video signal (Dj) due to a parasitic capacitance (Cssdr). However, the voltage of a voltage fluctuation compensation line (G3_Cnt (i)) changes from a low level to a high level within the selection period. This causes the voltage of the data line (SLrj) to rise via a capacitor (Ccnt), and the decrease in voltage to be compensated for.

    METHOD FOR PRODUCING ORGANIC ELECTROLUMINESCENT DISPLAY PANEL
    14.
    发明申请
    METHOD FOR PRODUCING ORGANIC ELECTROLUMINESCENT DISPLAY PANEL 有权
    用于生产有机电致发光显示面板的方法

    公开(公告)号:US20170033322A1

    公开(公告)日:2017-02-02

    申请号:US15101285

    申请日:2014-09-17

    CPC classification number: H01L51/56 H01L27/3211 H01L51/0017 H01L51/5012

    Abstract: The method for producing an organic EL display panel includes, in the given order, the steps of: forming a first light-emitting layer by forming a film from a luminescent material of a first luminescent color in a first pixel; performing the etching treatment to remove, while leaving the first light-emitting layer to remain, a thin film of the luminescent material of the first luminescent color which adhered to the second pixel in the step; forming a second light-emitting layer by forming a film from a luminescent material of a second luminescent color different from the first luminescent color in the second pixel; and performing the etching treatment to remove, while leaving the second light-emitting layer to remain, a thin film of the luminescent material of the second luminescent color which adhered to the first pixel in the step.

    Abstract translation: 有机EL显示面板的制造方法按照给定的顺序包括以下步骤:通过在第一像素中由第一发光颜色的发光材料形成膜而形成第一发光层; 进行蚀刻处理以在留下第一发光层的同时留下第一发光颜色的发光材料的薄膜,该薄膜在步骤中粘附到第二像素; 通过在第二像素中从与第一发光颜色不同的第二发光颜色的发光材料形成膜形成第二发光层; 并且在所述步骤中执行所述蚀刻处理以除去粘附到所述第一像素的所述第二发光颜色的发光材料的薄膜,同时留下所述第二发光层。

    ORGANIC ELECTROLUMINESCENT ELEMENT AND ORGANIC ELECTROLUMINESCENT PANEL
    15.
    发明申请
    ORGANIC ELECTROLUMINESCENT ELEMENT AND ORGANIC ELECTROLUMINESCENT PANEL 有权
    有机电致发光元件和有机电致发光面板

    公开(公告)号:US20160359128A1

    公开(公告)日:2016-12-08

    申请号:US15117771

    申请日:2015-02-10

    Abstract: The present invention provides an organic EL element having high luminous efficacy and productivity and an organic EL panel including the organic EL element. The organic electroluminescent element of the present invention includes, in the given order, an anode, a hole-transport layer, a luminescent unit, an electron-transport layer, and a cathode. The luminescent unit includes a mixed light-emitting layer and includes a luminescent dopant layer at least between the hole-transport layer and the mixed light-emitting layer or between the electron-transport layer and the mixed light-emitting layer. The mixed light-emitting layer contains a first luminescent host material and a first luminescent dopant material. The luminescent dopant layer consists essentially of a second luminescent dopant material and is thinner than the mixed light-emitting layer.

    Abstract translation: 本发明提供了具有高发光效率和生产率的有机EL元件和包含有机EL元件的有机EL面板。 本发明的有机电致发光元件按照给定的顺序包括阳极,空穴传输层,发光单元,电子传输层和阴极。 发光单元包括混合发光层,并且至少在空穴传输层和混合发光层之间或电子传输层和混合发光层之间包括发光掺杂剂层。 混合发光层含有第一发光主体材料和第一发光掺杂剂材料。 发光掺杂剂层基本上由第二发光掺杂剂材料构成,并且比混合发光层薄。

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