Organic light-emitting diode and method for manufacturing same
A light-emitting diode, organic technology, applied in the direction of organic semiconductor devices, semiconductor/solid-state device manufacturing, coatings, etc., can solve the problems of large refractive index, increased area, reduced overall transmittance, etc., to improve electrical performance, prevent and improve , The effect of preventing internal resistance
Inactive Publication Date: 2012-04-18
NEOVIEWKOLON CO LTD
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Problems solved by technology
As such, since the difference in refractive index between the substrate and the air layer is relatively large, the area where total reflection occurs increases, obnoxiously causing a problem of lowering the overall transmittance
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[0074] The first electrode 30 is generally called a bottom electrode, and is formed on the first substrate 12. The first electrode 30 is an anode that is a positive electrode, and is formed on the first substrate 12 by sputtering, ion plating, or thermal evaporation using an electron gun (e-gun). In this regard, according to an exemplary embodiment of the present invention, the first electrode 30 may be a transparent indium tin oxide ITO electrode, or an indium-zinc-oxide (indium-zinc-oxide) electrode that is transparent may be selected.
[0075] The second electrode 50 is generally called a top electrode, is disposed facing the first electrode 30 and is formed on the organic layer 70. The second electrode 50 is a cathode which is a negative electrode, and the negative electrode and the first electrode 30 which is a positive electrode have opposite charges. The second electrode 50 is arranged adjacent to the second substrate 14. The second electrode 50 may be formed of any one ...
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Abstract
The present invention relates to an organic light-emitting diode with improved optical transmittance, and to a method for manufacturing same. The organic light-emitting diode of the present invention comprises: a first substrate and a second substrate; a first electrode formed on the first substrate; an organic layer formed on the first electrode; a second electrode formed between the organic layer and the second substrate; and an antireflection layer formed on at least one surface of at least the first substrate or the second substrate, and which has a predetermined refractive index. The thus-configured present invention has said antireflection layer formed on any outer surface of at least the first substrate or the second substrate to thereby enhance optical transmittance, thus enhancing the reliability of products.
Description
Technical field [0001] The present invention relates to an organic light emitting diode, and more specifically, to an organic light emitting diode that improves the transmittance of light passing through a substrate in addition to the light transmittance of a transparent cathode, and a method for manufacturing the organic light emitting diode . Background technique [0002] Generally, an organic light emitting diode (OLED) includes a substrate, a bottom electrode formed on the substrate, an organic layer formed on the bottom electrode, and a top electrode formed on the organic layer. [0003] The organic light emitting diode emits light by using electrical conduction between the anode as the bottom electrode and the cathode as the top electrode. Specifically, the light emission of the organic light emitting diode occurs on the organic layer by means of the electrons of the top electrode and the holes of the bottom electrode, and the organic layer is provided on the top electrode a...
Claims
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IPC IPC(8): H01L51/52G02B1/11
CPCH01L51/5275H01L2251/308H01L51/5234H01L2251/5323H01L2251/306H10K50/828H10K50/858H10K2102/102H10K2102/3031H10K2102/103H10K50/86H10K2102/351
Inventor 河泳宝申慭澈金荣银任友彬朴显植
Owner NEOVIEWKOLON CO LTD