Organic light emitting diodes
    1.
    发明授权
    Organic light emitting diodes 有权
    有机发光二极管

    公开(公告)号:US07786670B2

    公开(公告)日:2010-08-31

    申请号:US10523604

    申请日:2003-07-30

    IPC分类号: H01J1/62

    摘要: This invention relates to organic light emitting diodes (OLEDs) and to methods for their manufacture. The invention provides an OLED element or display which enables contrast to be produced in an image. In accordance with the invention a layer of ink is patterned as a blocking layer between two OLED layers. The ink reduces or prevents conduction, i.e. movement of charge, between the two OLED layers in that area of the device. The ink may be dark in color, e.g. black, to increase the contrast ratio of the OLED. The blocking layer is provided between any two layers in the OLED and blocks the charge movement in these areas. The blocking layer may comprise a multiplicity of ink dots, the density of which determines the extent to which conduction is hindered. The blocking layer may be produced as a “grey-scale” pattern wherein the density of dots is varied across the pattern.

    摘要翻译: 本发明涉及有机发光二极管(OLED)及其制造方法。 本发明提供一种能够在图像中产生对比度的OLED元件或显示器。 根据本发明,一层油墨被图案化为两个OLED层之间的阻挡层。 油墨减少或防止在装置的该区域中的两个OLED层之间的传导,即电荷的移动。 墨水的颜色可能较暗,例如 黑色,以增加OLED的对比度。 阻挡层设置在OLED中的任何两层之间,并阻止这些区域中的电荷移动。 阻挡层可以包括多个墨点,其密度决定阻碍传导的程度。 可以将阻挡层制成为“灰度”图案,其中点的密度在整个图案上变化。

    Organic electronic devices
    2.
    发明授权
    Organic electronic devices 失效
    有机电子设备

    公开(公告)号:US07332369B2

    公开(公告)日:2008-02-19

    申请号:US10523644

    申请日:2003-07-30

    IPC分类号: H01L51/40

    摘要: A method for forming an organic electronic device, which method comprises the steps of: a) forming a negative image of a desired pattern on a substrate or device layer with a lift-off ink; b) coating a first device layer to be patterned on top of the negative image; c) coating one or more further device layers to be patterned on top of the first device layer to be patterned; and d) removing the lift-off ink and unwanted portions of the device layers above it, thereby leaving the desired pattern of device layers. The method allows the formation of a device structure wherein the device layers to be patterned are self-aligned. The method enables a multiplicity of layers to be patterned in a single set of printing and lift-off steps using one pattern which ensures the excellent vertical alignment of edges, which would be difficult to achieve by direct printing. Horizontal alignment can also be achieved. The size of the device features can be reduced below the actual printing resolution. Examples of organic electronic devices include OFETs, OLEDs, memory, sensing elements, solar cells, photo-sensors, photoreceptors for electrophotography and the like.

    摘要翻译: 一种用于形成有机电子器件的方法,所述方法包括以下步骤:a)用剥离油墨在衬底或器件层上形成所需图案的负像; b)在负图像的顶部涂覆待图案化的第一器件层; c)在待图案化的第一器件层的顶部涂覆待图案化的一个或多个其它器件层; 以及d)去除剥离墨水和其上方的装置层的不希望的部分,从而留下所需的装置层图案。 该方法允许形成器件结构,其中待图案化的器件层是自对准的。 该方法使得可以使用一种图案在单组打印和剥离步骤中图案化多个层,其确保边缘的优异垂直对准,这将难以通过直接印刷实现。 也可以实现水平对准。 设备特征的大小可以降低到实际打印分辨率以下。 有机电子器件的实例包括OFET,OLED,存储器,感测元件,太阳能电池,光电传感器,用于电子照相术的光感受器等。