OLEDs having increased external electroluminescence quantum efficiencies

    公开(公告)号:US07012363B2

    公开(公告)日:2006-03-14

    申请号:US10043849

    申请日:2002-01-10

    IPC分类号: H05B33/00

    摘要: OLED devices are disclosed having increased external electroluminescence quantum efficiencies, i.e., increased “out-coupling” efficiencies. OLED devices that have increased out-coupling efficiencies and that are also protected from environmental elements such as moisture and oxygen are also disclosed. The OLED device of the present invention comprises a substrate; an active region positioned on the substrate, wherein the active region comprises an anode layer, a cathode layer and a light-emitting layer disposed between the anode layer and the cathode layer; and a polymeric layer disposed (a) over the active region, (b) under the active region or (c) both over and under the active region. The polymeric layer has microparticles incorporated therein, and the microparticles are effective to increase the out-coupling efficiency of the OLED. In one embodiment, the OLED device comprises a composite barrier layer and the microparticles are incorporated in a polymeric planarizing sublayer of the composite barrier layer. The composite barrier layer in this embodiment also protects the OLED from damage caused by environmental elements such as moisture and/or oxygen.

    Molecular memory device
    75.
    发明授权
    Molecular memory device 有权
    分子记忆装置

    公开(公告)号:US06781868B2

    公开(公告)日:2004-08-24

    申请号:US10139747

    申请日:2002-05-07

    IPC分类号: G11C1300

    摘要: A novel memory cell is provided with an active region including a molecular system and ionic complexes distributed in the molecular system. A pair of write electrodes are arranged for writing information to the memory cell. The active region is responsive to an electric field applied between the pair of write electrodes for switching between an on state and an off state. The active region has a high impedance in the off state and a low impedance in the on state. A pair of read electrodes is used to detect whether the active region is in the on state or in the off state to read the information from the memory cell. Read electrodes may be made of different materials having different work functions to reduce leakage current.

    摘要翻译: 提供了一种新颖的记忆单元,其具有包括分子系统中分子系统和分子系统分布的离子络合物的活性区域。 布置一对写入电极用于将信息写入存储单元。 有源区域响应于在一对写入电极之间施加的电场,用于在导通状态和断开状态之间切换。 有源区在断开状态下具有高阻抗,在导通状态下具有低阻抗。 一对读取电极用于检测有源区域是处于导通状态还是处于断开状态以从存储单元读取信息。 读取电极可以由具有不同功函数的不同材料制成,以减少漏电流。

    Method of fabricating transparent contacts for organic devices
    76.
    发明授权
    Method of fabricating transparent contacts for organic devices 失效
    制造有机器件透明触点的方法

    公开(公告)号:US06596134B2

    公开(公告)日:2003-07-22

    申请号:US09468986

    申请日:1999-12-21

    IPC分类号: C23C1400

    摘要: A multicolor organic light emitting device employs vertically stacked layers of double heterostructure devices which are fabricated from organic compounds. The vertical stacked structure is formed on a glass base having a transparent coating of ITO or similar metal to provide a substrate. Deposited on the substrate is the vertical stacked arrangement of three double heterostructure devices, each fabricated from a suitable organic material. Stacking is implemented such that the double heterostructure with the longest wavelength is on the top of the stack. This constitutes the device emitting red light on the top with the device having the shortest wavelength, namely, the device emitting blue light, on the bottom of the stack. Located between the red and blue device structures is the green device structure. The devices are configured as stacked to provide a staircase profile whereby each device is separated from the other by a thin transparent conductive contact layer to enable light emanating from each of the devices to pass through the semitransparent contacts and through the lower device structures while further enabling each of the devices to receive a selective bias. The devices are substantially transparent when de-energized, making them useful for heads-up display applications.

    摘要翻译: 多色有机发光器件采用由有机化合物制成的双异质结构器件的垂直层叠层。 垂直堆叠结构形成在具有ITO或类似金属的透明涂层的玻璃基底上以提供基底。 沉积在衬底上的是三个双异质结构器件的垂直堆叠布置,每个由异质结构器件制成,每个由合适的有机材料制成。 实施堆叠,使得具有最长波长的双异质结构位于堆叠的顶部。 这构成在顶部发射红光的装置,其中装置具有最短波长,即发射蓝光的装置,在堆叠的底部。 位于红色和蓝色的设备结构之间是绿色设备结构。 这些器件被配置为堆叠以提供阶梯轮廓,由此每个器件通过薄的透明导电接触层与另一个分离,以使来自每个器件的光能够透过半透明触点并通过下部器件结构,同时进一步启用 每个设备接收选择性偏差。 当断电时,这些器件基本上是透明的,使得它们对于平视显示器应用是有用的。

    Transparent contacts for organic devices
    77.
    发明授权
    Transparent contacts for organic devices 有权
    有机器件的透明触点

    公开(公告)号:US06548956B2

    公开(公告)日:2003-04-15

    申请号:US09726482

    申请日:2000-12-01

    IPC分类号: H01J162

    摘要: A multicolor organic light emitting device employs vertically stacked layers of double heterostructure devices which are fabricated from organic compounds. The vertical stacked structure is formed on a glass base having a transparent coating of ITO or similar metal to provide a substrate. Deposited on the substrate is the vertical stacked arrangement of three double heterostructure devices, each fabricated from a suitable organic material. Stacking is implemented such that the double heterostructure with the longest wavelength is on the top of the stack. This constitutes the device emitting red light on the top with the device having the shortest wavelength, namely, the device emitting blue light, on the bottom of the stack. Located between the red and blue device structures is the green device structure. The devices are configured as stacked to provide a staircase profile whereby each device is separated from the other by a thin transparent conductive contact layer to enable light emanating from each of the devices to pass through the semitransparent contacts and through the lower device structures while further enabling each of the devices to receive a selective bias. The devices are substantially transparent when de-energized, making them useful for heads-up display applications.

    摘要翻译: 多色有机发光器件采用由有机化合物制成的双异质结构器件的垂直层叠层。 垂直堆叠结构形成在具有ITO或类似金属的透明涂层的玻璃基底上以提供基底。 沉积在衬底上的是三个双异质结构器件的垂直堆叠布置,每个由异质结构器件制成,每个由合适的有机材料制成。 实施堆叠,使得具有最长波长的双异质结构位于堆叠的顶部。 这构成在顶部发射红光的装置,其中装置具有最短波长,即发射蓝光的装置,在堆叠的底部。 位于红色和蓝色的设备结构之间是绿色设备结构。 这些器件被配置为堆叠以提供阶梯轮廓,由此每个器件通过薄的透明导电接触层与另一个分离,以使来自每个器件的光能够透过半透明触点并通过下部器件结构,同时进一步启用 每个设备接收选择性偏差。 当断电时,这些器件基本上是透明的,使得它们对于平视显示器应用是有用的。

    Method for depositing a patterned layer of material over a substrate
    78.
    发明授权
    Method for depositing a patterned layer of material over a substrate 有权
    在衬底上沉积图案化材料层的方法

    公开(公告)号:US06458426B1

    公开(公告)日:2002-10-01

    申请号:US09717351

    申请日:2000-11-22

    IPC分类号: B05D128

    摘要: This application relates to a method of depositing a patterned layer of material, such as organic material, over a substrate or organizing materials over a substrate. The method involves using a stamp having at least one conductive pathway and an insulating layer to transfer material from a solution to a substrate in a specified pattern. The stamp may be used multiple times to transfer a similar pattern of organic material to multiple substrates or to different portions of the same substrate. The transferred material may then be preferably used as a photolithographic mask for nano-patterning the substrate. This application also relates to a stamp that may be used in depositing a patterned layer of material onto a substrate, a method of forming such a stamp, and a method of depositing a layer of oriented molecules over a substrate.

    摘要翻译: 本申请涉及在衬底上沉积诸如有机材料的图案化层材料层或在衬底上组织材料的方法。 该方法包括使用具有至少一个导电通路的印模和绝缘层以特定的图案将材料从溶液转移到基底。 印模可以多次使用以将相似图案的有机材料转移到多个基板或相同基底的不同部分。 然后可以将转移的材料用作用于纳米图案化衬底的光刻掩模。 本申请还涉及可以用于将图案化的材料层沉积到衬底上的印模,形成这种印模的方法以及在衬底上沉积定向分子层的方法。