OLED 演讲稿_oled的概念

OLED 演讲稿由刀豆文库小编整理，希望给你工作、学习、生活带来方便，猜你可能喜欢“oled的概念”。

Hello, My name is Wang Wenping.I will introduce you something about the OLED Technology.Let’s see the contents.I will show you the OLED definition, the developed history, the structure, the application and the advantage of OLED to LCD.First, it’s the definition.You can call the OLED in two kinds.It is called organic light emitting diode in USA, and it is called organic electroluminescence display in Japan.In 1963 the first organic electroluminescent(EL)based on anthracene single crystal，In 1987 first organic electroluminescent(EL)based on amorphous organic molecules，In 1990---First organic electroluminescent(EL)based on polymer;(Cambridge University);After then, it is used in several territorys.You can see it is used in MP3 display, cellular, digital camera and TV.We must know what the OLED structure is.There are two styles of drive mode, but I will just introduce the basic structure to you.If we amplify the cro section of the OLED, you can see there are two electrodes, cathode and anode.There are also three layers electron transporting layer, emitting layer and hole transporting layer.If I give a voltage from the cathode to the anode, it will emit.I want to show you the applications of OLED.From the developed history you can see OLED is most useful in mobile phone, PDA, smart phones, games and the vehicle display panel.From 2001 to 2009 it is used almost every display.In fact there is also something you cannot imagine.The transparent display, you can see the things acro it.The bending display, you can supposedly roll it up into a little cigar with a radius of one single centimeter.So you see the OLED has many advantage ,It is solid state devices.It has thin film.So it is lighter and thinner；it has high brightne and high resolution；It’s viewing angle is wide.the visual angle is greater than about 170 degrees；it has microsecond response speed, about 1000 times of LCD；there is no back light source in OLED so it has low energy consumption；The proce is more simple than LCD, but have low cost；It can work normally In 20℃~ 70 ℃.Because of these advantages the OLED is becoming available in commercial products and is expected to eventually replace LCD and PDP Technology.