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Large-area organic electroluminescence area light source and electrode extraction method thereof

A technology of electrode extraction and electroluminescence, which is applied to electroluminescence light sources, electric light sources, light sources, etc., can solve problems such as inability to work, temperature rise of display panels, and reduction of practical possibilities of display panels, so as to save electricity costs and reduce The effect of electricity demand

Inactive Publication Date: 2013-03-27
江苏广发光电科技有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

These two practical features will cause the temperature of the display panel to rise. Due to the uneven heat dissipation of the display, the local area of ​​the display will generate too much heat, and the working life of the panel will be low or it will burn out directly and fail to work.
In this case, the possibility of practical application of the display panel is obviously reduced, so it is required that the display for organic electroluminescence lighting must have a good heat dissipation function

Method used

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  • Large-area organic electroluminescence area light source and electrode extraction method thereof
  • Large-area organic electroluminescence area light source and electrode extraction method thereof
  • Large-area organic electroluminescence area light source and electrode extraction method thereof

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Embodiment Construction

[0021] A counterfeit embodiment of the present invention is described as follows in conjunction with the accompanying drawings: see figure 1 As shown, the ITO thin film 1 is made on the glass substrate. The ITO on the ITO substrate is distributed in a dot matrix, and its upper end is distributed in strips. The regularized pattern and heat conduction function of this invention are realized through the mask etching process. Layer 2 is made on the ITO film 1 to form the anode. On the one hand, it can achieve uniform light emission due to its good electrical conductivity, and on the other hand, it can achieve high heat dissipation performance due to its good heat dissipation. The organic material layer 3 is deposited by the method, and then the metal electrode layer 4 is vapor-deposited. By connecting the positive electrode ITO thin film 1 and the negative electrode metal electrode layer 4, the organic material layer 4 is supplied with direct current to drive light emission. The ...

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Abstract

Disclosed are a large-area organic electroluminescence area light source and an electrode extraction method thereof. The large-area organic electroluminescence area light source comprises an ITO (indium tin oxide) glass substrate, an organic material layer and a metal electrode layer. ITO is disturbed in a arrayed block form on the ITO glass substrate and the upper end of the ITO is distributed in a strip form. A metal heat conducting functional layer is distributed in a strip form on the ITO glass substrate and form an anode along with the ITO. The organic material layer is evaporated on the ITO and the metal heat conducting functional layer. The metal electrode layer is completely evaporated on the organic material layer to from a cathode. The electrode extraction method is characterized in that regular patterns of the ITO distributed in the arrayed block form on the ITO glass substrate can be square and of various shapes such as 'E' shape in a visual testing chart in actual application. By the heat conducting functional layer, good and fast radiation and even light emission are achieved, and a display is enabled to have the functions of good radiation and even light emission. In addition, the large-area organic electroluminescence area light source is efficient, energy-saving and environment-friendly.

Description

Technical field: [0001] The invention relates to an electrode extraction method of a large-area organic electroluminescence surface light source, that is, an electrode extraction method of a large-area organic electroluminescence surface light source with uniform light emission and good heat dissipation. Background technique: [0002] Organic Light Emitting Device (OLED) is widely used in flat panel displays, backlight modules and lighting due to its characteristics of ultra-thin, high brightness, fast response, low power consumption, high efficiency and simple production. The principle of luminescence is to deposit a very thin organic material between two electrodes, and apply direct current to the organic luminescent material to make it luminous. [0003] The practical features of organic electroluminescent lighting displays are high brightness, generally 100-500cd / m 2 Between, the highest brightness can reach 2,000~3,000cd / m 2 ; The second is long-term stable lighting, ...

Claims

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Application Information

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IPC IPC(8): H05B33/12H01L51/52
Inventor 吕燕芳于方方廖翊诚刘功龙尚玉柱
Owner 江苏广发光电科技有限公司
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