What is the OLED screen?

Smartphone development so far has reached the quad-core processor and 2G memory configuration, which in terms of hardware can already be said to be quite high. Like most of the computers we use now, they are only dual-core. In terms of hardware configuration, the current cell phone in terms of CPU and memory to improve ability has been very limited, and cell phone performance is also in the excess stage. Therefore, in 2013, the major cell phone brand manufacturers in the camera, screen, and appearance continued to battle.



Samsung's hottest-selling Galaxy S4 uses Samsung's own most advanced Full HD Super AMOLED screen with a resolution of 1920 x 1080 and a pixel density of 441 PPI (pixels per inch). Motorola also plans to develop a phone called Moto X, which will also use an OLED screen. There are also rumors that Google Glass also plans to use Samsung's OLED screen. Apple's iWatch will also use a 1.5-inch OLED screen. Why do the world's top manufacturers produce flagship devices that have OLED screens?


  The OLED, or organic electroluminescent display, uses a very thin coating of organic materials and a glass or transparent plastic substrate. When there is an electric current, these organic materials will glow. Furthermore, OLED display screens have a wide viewing angle and can save a significant amount of energy.


  What are the advantages of OLED over LCD (liquid crystal) screens for cell phones, which are commonly available on the market today? The direct light-emitting OLED response speed is faster than LCD by more than 1000 times, and the brightness is far greater than LCD, so we do not have to worry about the phone screen under the sun to see clearly. The LCD screen is illuminated by the background light through the liquid crystal body, and then through the color filter processing color pixels, part of the light will In the color filter attenuation, which causes the background light to use a lot of electricity and is not clear in the sunlight display, In addition, the material of OLED screens can be made into an ultra-thin type using a nano process to produce it.


  OLED production technology is mainly in the hands of Samsung, LG, Sharp, etc. For real use in cell phones, its cost is still expensive, and mass production has not yet begun.


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