Optical resonator type organic electroluminescent element
    3.
    发明授权
    Optical resonator type organic electroluminescent element 失效
    光谐振器型有机电致发光元件

    公开(公告)号:US06406801B1

    公开(公告)日:2002-06-18

    申请号:US09243479

    申请日:1999-02-03

    IPC分类号: H05B3312

    摘要: An optical resonator type organic electroluminescent element has a multilayered film mirror 30, a transparent electrode 12, an electron hole transportation layer 14 and a luminescent layer 16 configuring an organic layer, and a metallic electrode mirror 20, formed on a glass substrate 10. The optical resonator type organic electroluminescent element amplifies a specific wavelength (especially, in a range of about 30 nm toward a shorter wavelength side from a luminescence peak wavelength of the organic layer) in luminescence light by a minute optical resonator, which comprises the multilayered film mirror 30 and the metallic electrode mirror 20. It is determined that the minute optical resonator has an optical length L which is twice as long as a resonance wavelength, the organic layer has a thickness of 100 nm or more, and the transparent electrode has a thickness of 50 nm or more or a thickness so to have a sheet resistance of 30 &OHgr;/□ or less. Thus, the transparent electrode can be prevented from generating heat even when a large current is caused to flow into it, and the element characteristics can be reliably prevented from being deteriorated. Moreover, the reliability of this element can be improved because the organic layer containing the luminescent layer has a sufficient thickness.

    摘要翻译: 光谐振器型有机电致发光元件具有形成在玻璃基板10上的多层膜反射镜30,透明电极12,电子空穴传输层14和构成有机层的发光层16和金属电极镜20。 光谐振器型有机电致发光元件通过微小的光谐振器在发光中放大特定波长(特别是在距离有机层的发光峰值波长的较短波长侧在约30nm的范围内),其包括多层膜镜 30和金属电极镜20.确定微型光谐振器的光学长度L是谐振波长的两倍,有机层的厚度为100nm以上,透明电极的厚度 为50nm以上,厚度为30Ω/□以下。 因此,即使当大电流流入其中时,也可以防止透明电极产生热量,并且可以可靠地防止元件特性劣化。 此外,由于含有发光层的有机层具有足够的厚度,所以可以提高该元件的可靠性。

    Light source and display device
    8.
    发明授权
    Light source and display device 有权
    光源和显示设备

    公开(公告)号:US07205964B1

    公开(公告)日:2007-04-17

    申请号:US09530099

    申请日:2000-04-25

    IPC分类号: G09G3/30

    摘要: The invention provides electroluminescent (EL) elements, such that a red EL light source, a green EL light source and a blue EL light source emit red color light, green color light, and blue color light, respectively, and are disposed at the rear of liquid crystal display elements. Each EL light source includes an organic EL element in which an organic thin film emits light. Each EL light source has a structure in which an organic luminescent layer is sandwiched between an indium tin oxide (ITO) electrode and a metal electrode which have striped patterns which are orthogonal to each other, and sections (luminescent sections) at which the striped patterns of the ITO electrode and the metal electrode intersect with each other emit light. The luminescent sections are arrayed two-dimensionally on a glass substrate and illuminate the entire display area of the liquid crystal display element.

    摘要翻译: 本发明提供电致发光(EL)元件,使得红色EL光源,绿色EL光源和蓝色EL光源分别发射红色光,绿色光和蓝色光,并且设置在后面 的液晶显示元件。 每个EL光源包括其中有机薄膜发光的有机EL元件。 每个EL光源具有其中有机发光层夹在铟锡氧化物(ITO)电极和具有彼此正交的条纹图案的金属电极之间的结构,以及条形图案 的ITO电极和金属电极彼此相交发光。 发光部分在玻璃基板上二维排列并照亮液晶显示元件的整个显示区域。

    Micro-optical resonator type organic electroluminescent device
    9.
    发明授权
    Micro-optical resonator type organic electroluminescent device 失效
    微光谐振器型有机电致发光器件

    公开(公告)号:US5780174A

    公开(公告)日:1998-07-14

    申请号:US736726

    申请日:1996-10-25

    IPC分类号: H01L51/52 H05B33/12 H05B33/22

    摘要: A micro-optical resonator type organic electroluminescent device utilizing an organic electroluminescent material high in emission efficiency but broad in emission spectrum width, has a narrow half bandwidth in the emission peak and a superior forward directivity and an excellent monochromaticity in light not separate into components, wherein a micro-optical resonator is formed by a multi-layered mirror and a metal mirror. The optical length of the micro-optical resonator, calculated from the total thickness and the refractive index of a transparent conductive layer and a luminous layer placed between the multi-layered mirror and the metal mirror and also from the light penetration depth into the multi-layered mirror, is 1.5 times the wavelength of a desired light emitted from the device, and the desired light is set on the short wavelength side of the emission spectrum of the electroluminescent material.

    摘要翻译: 利用发光效率高,发射光谱宽度宽的有机电致发光材料的微光谐振器型有机电致发光元件,在发光峰值中具有窄的半带宽,并且具有优异的正向方向性和优异的单色性,不分离成元件, 其中微型光谐振器由多层反射镜和金属镜形成。 微透镜的光学长度由透明导电层和位于多层反射镜和金属反射镜之间的发光层的总厚度和折射率以及从多个透镜的透光深度计算, 分层反射镜是从器件发射的期望光的波长的1.5倍,并且期望的光被设置在电致发光材料的发射光谱的短波长侧。