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AMOLED DISPLAY Luminous Principle

At present, AMOLED display technology has become a lot of consumer attention technology, Samsung's mobile phone has been using this screen, but it is difficult to promote, and the field of large-screen display is hard to find large-screen AMOLED device trace, which is why? Here we may wish to first introduce this unique display technology

AMOLED is an OLED display technology, also known as active matrix OLED display technology, AMOLED is the English Active-matrix organic light emitting diode shorthand, the Chinese full name is the active matrix organic light-emitting diode or active matrix organic light-emitting diodes. AMOLED screen structure has three layers, AMOLED screen + TouchScreenPanel (touch screen panel) + outside the protection of glass. AMOLED is an OLED technology, OLED represents it is a self-luminous display, the use of multi-layer organic compounds to achieve independent R, G, B three-color light. Super AMOLED dazzling screen in determining the color reduction ability of the core indicators - color gamut and color fidelity has been the highest score. WQXGA-level high-definition screen in the outdoor visibility has also been "ExcellentA", which makes GALAXYTabS outdoor light has excellent visibility.

AMOLED light principle

AMOLED screen in the development process derived from a lot of different versions, such as AMOLED, SuperAMOLED, SuperAMOLEDPlus and SuperAMOLEDAdvanced and so on. AMOLED is based on organic luminous bodies, and thousands of light sources that emit only one of the three colors of red, green, or blue are placed in a specific form on the substrate of the screen, When the voltage is applied when the red, green or blue, the voltage conversion also need to rely on TFT, in the adjustment of the proportion of the three primary colors before they can send a variety of colors.

The pace of development is fast

AMOLED practical footsteps because of the faster, and now has become the mainstream of OLED technology, which inherited the OLED material energy-saving, ultra-thin and flexible features, but the current development is not mature, due to the blue OLED luminous material life problems Less than the solution, affecting the overall life of the display screen, and also because of this problem, the screen color also appeared a problem (not frequent use of blue OLED material reasons), so this defect caused by life, color and cost disadvantages , Making AMOLED can not be promoted. And this problem has also seriously affected the AMOLED large-scale process, large equipment, higher life expectancy, although the current technology has been able to AMOLED screen life of more than 10,000 hours, but for television and other equipment, equipment, High, can not solve the life problem, a lot of evaporation of some blue OLED material, can solve this problem to a certain extent, but the composition of the blue OLED too much, the screen color can not be guaranteed, so AMOLED large-scale encounter "dystocia "

With the discussion of AMOLED light principle, the development of the situation, we then analyze the advantages and disadvantages of AMOLED display technology, AMOLED with thinner and lighter, active light without backlight, no angle problem, high definition, high brightness, fast response , Low energy consumption, the use of a wide temperature range, strong seismic capacity, can achieve soft display and other characteristics, many of which are difficult to achieve TFT LCD panel features, the following continue to recognize AMOLED display technology.

Super AMOLED lacks

Samsung has been in their own flagship models on the use of Super AMOLED screen, which is AMOLED excellent display technology, but for Super AMOLED outside evaluation is controversial, Super AMOLED Samsung is not their own invention and exclusive , Because Samsung's large-scale production of TFT-LCD screen has accumulated a lot of experience and technology, coupled with a lot of R & D investment in OLED and frequent use of their products Super AMOLED screen, resulting in people mistakenly believe that Super AMOLED is Samsung's own unique technology. Super AMOLED has been criticized for several reasons, the first is the reduction of color as IPS screen, Samsung Super AMOLED screen that the graphics color is often very bright, too full, the color of the performance of the vulgar, but the This is actually in order to meet the public taste of Samsung deliberately to the color of the screen is very beautiful caused by the transfer. To please the eye, or focus on the reduction of color, which is a personal like the problem, in fact, and the relationship between the screen is not.

Early Super AMOLED screen burning screen phenomenon, the so-called burning screen refers to the screen if a long time to display a still image of the screen, it will leave blur. Early Super AMOLED screen does exist this problem, but with the OLED screen continues to evolve and develop, this phenomenon has become less and less. There are Samsung's screen has been sprayed is the use of PGB-type lattice array, PGB-type lattice array relative to the RGB-type lattice array, grainy stronger, in the 720P and lower resolution of the era, this problem is particularly evident, But in the Galaxy S4 1080P screen this problem has been a great deal of solution. The GalaxyS5 screen than the GalaxyS4 screen type dot matrix arrangement is more reasonable, this problem is not Super AMOLED short board where.

Continuously Innovative Super AMOLED

Although Super AMOLED shortcomings, but not nothing. Super AMOLED advantages are also many. You can see that the new Super AMOLED OLED does not require backlighting, based on OLED will be self-luminous, so Super AMOLED LCD does not exist as the same light leakage phenomenon. In addition Super AMOLED in the display of black, the basic in the non-working state, so the screen will appear more black, and lower power consumption. Compared to LCD, OLED display panel thinner, in the design of finished products, you can save more space. LCD because the LCD as a fluid, can not adapt to too frequent bending, the current look can only barely cope with the fixed shape of the curved display. But OLED is different, OLED can bend, in the future wearable device OLED will be greater role. Samsung has proved on the Galaxy S5 Super AMOLED can do better, Super AMOLED future prospects worthy of our expectations.


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