Organic electroluminescence displaying apparatus with air eliminative agent
A display device and luminescence technology, which is applied in the direction of electroluminescent light source, electric solid device, electric light source, etc., can solve the problems of pollution, affecting the life and stability of the device, and short life, so as to reduce pollution and improve reliability , the effect of prolonging the service life
Inactive Publication Date: 2009-02-04
SHAANXI UNIV OF SCI & TECH
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Problems solved by technology
The lifespan of an OLED device depends on the selected organic material on the one hand, and on the other hand the packaging of the device; because the organic material is very unstable, if the OLED device is not well packaged, the organic material will be mixed with the water vapor in the vacuum chamber, Oxygen and other gases react and will easily fail, resulting in a reduction in the life of the entire OLED device; even if the OLED device is well packaged, some components in the OLED device will release certain gases and water vapor under working conditions, which will affect the device. life and stability, which limits the process of industrialization of OLED devices
The main reason for the short life is that the organic electroluminescent material is polluted by the residual gas in the screen and the gas released when the luminescent material is working, making it invalid.
Method used
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[0008] Below in conjunction with accompanying drawing, structural principle and working principle of the present utility model are described in further detail.
[0009] see below figure 1 and down figure 2 , the present invention comprises an upper glass substrate 5 and a lower glass substrate 2, an ITO anode 6 is arranged below the upper glass substrate 5, a metal cathode 4 is plated on the lower surface of the functional layer 3, and the upper and lower glass plates 5, 2 are automatically The inner sealing frame glue 8 and the outer sealing frame glue 7 are arranged from the inside to the outside, and the vacuum chamber 11 and the isolation chamber 9 formed by the inner and outer sealing glue. A getter 1 is also provided.
[0010] Said air getter is an alloy material mixed and smelted from metals with good air absorption properties, including barium, calcium, palladium, etc., and other types of getters used in picture tubes, solar vacuum tubes, and mercury-sodium lamps. ...
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A kind of organic electroluminescence display device with degassing agent is consisted with upper glass foundation plate and lower glass foundation plate. The lower glass foundation plate is ITO glass which forms the anode of device through photo-etching. The ITO anode is coated with various functional layer and metal cathode in turn. Vacuum cavity and insulation cavity, which connect by through hole, are arranged from inside to outside between the upper glass foundation plate and lower glass foundation plate. There are degassing agents in the insulation cavity. This invention introduces insulation cavity with degassing agents in the side face of OLED device. Thus, it does not occupy available space of display screen. The introduced degassing agents can decrease pollution question of vacuum cavity. The degassing agents can further absorb the remaining gas in the screen.
Description
technical field [0001] The invention relates to an organic electroluminescent display device, in particular to an organic electroluminescent display device with a getter. Background technique [0002] At present, the display technology has developed from the common hot cathode ray tube (CRT), liquid crystal display (LCD), and plasma flat panel display device (PDP) to today's organic electroluminescent display device (OLED); OLED devices and other display devices It has greater advantages than that, specifically manifested in the advantages of low working voltage, low production cost, low energy consumption, thinner, higher brightness and definition. However, the lifespan of OLED flat panel display devices is one of the most important obstacles to its practical application. The lifespan of an OLED device depends on the selected organic material on the one hand, and on the other hand the packaging of the device; because the organic material is very unstable, if the OLED devic...
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IPC IPC(8): H01L51/50H01L51/52H01L27/32H05B33/12H05B33/04
Inventor 张方辉李新贝刘倩牟强马颖李亚利李志贤李欣
Owner SHAANXI UNIV OF SCI & TECH