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What are the advantages of Plastic Organic Light Emitting Diode Screens (POLED) over conventional AMOLED screens and/or IPS LCD Screens?
1.POLED is usually brighter than IPS LCD Screens, more visible during daylight and capable of carrying more colours.
2.POLED provides current to every pixel individually as against AMOLED which provides current to an entire row of LED one at a time.
3.POLED is usually thinner than conventional AMOLED.
4.POLED is less susceptible to cracking and shattering from dropping than conventional AMOLED.
Select the correct answer using the codes below.
1 and 2 only
3 and 4 only
1 , 3 and 4 only
All of the above
These are technologies used in the screens of smartphones/tablets or PCs. Each type of screen has its own advantages and trade-offs relating to durability, power consumption, quality of display and flexibility. OLED (Organic Light Emitting Diodes) is a flat light emitting technology, made by placing a series of organic thin films between two conductors. When electrical current is applied, a bright light is emitted. OLEDs are emissive display that do not require a backlight and so are thinner and more efficient than LCD displays (which do require a white backlight). OLEDs are organic because they are made from carbon and hydrogen. POLED is an OLED panel that uses plastic as a substrate. OLED display offer improved image quality - better contrast, higher brightness, fuller viewing angle, a wider color range and much faster refresh rates and lower power consumption over an LCD display. Justification: Statement 2: PMOLED is an OLED control scheme in which each row or line in the display is controlled sequentially and one-by-one. In other words, passive matrix provides current to an entire row of LED one at a time. On the other hand, AMOLED or active-matrix OLED is a control scheme that uses thin-film transistor backplane to actively maintain a particular pixel state while other pixels are being addressed at the same time. This scheme allows each pixel to be controlled individually. Statement 1: IPS LCD is essentially brighter than OLED because of the addition of backlighting. This means that a POLED can be difficult to view outdoors or under direct sunlight. Also, one of the notable disadvantages of POLED is a shorter lifespan than IPS LCD or TN LCD panels. Statement 3: Typical AMOLED panels such as the Super AMOLED panel from Samsung use glass substrate. Using plastic substrates gives POLED several advantages. One of the advantages of POLED over conventional AMOLED is thinness. The plastic substrate is considerably half as thin as glass substrates, thus allowing manufacturers to produce thinner display panels that can be fitted into thinner devices. Another advantage of POLED is flexibility. Take note that LG G Flex was the first smartphone to feature a curved display thanks to its POLED panel. Plastic is essentially more flexible than glass. It is also worth mentioning that glass is rigid while plastic is easier to form into new shapes. Statement 4: Plastic OLED is also more durable than typical AMOLED. The flexibility of plastic gives some additional shock absorbance over glass. This durability also means POLED is less susceptible to cracking and shattering from dropping.
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