WHAT IS OLED AND HOW DOES IT WORK? | FEATURES OF OLED

WHAT IS OLED AND HOW DOES IT WORK? | FEATURES OF OLED

The “OLED” in OLED TV stands for “organic light-emitting diode. At present  OLED  is the future of the all LED Technologies

WHAT IS OLED TECHNOLOGY AND ITS FEATURES?

OLED stands for Organic Light-Emitting Diode, with "organic" referring to the carbon film that sits inside the panel before the glass screen. OLED, an advanced form of LED, stands for organic light-emitting diode. Unlike LED, which uses a backlight to provide light to pixels, OLED relies on an organic material made of hydrocarbon chains to emit light when in contact with electricity.

 A display technology that consists of small dots of organic polymer which emit light when charged with electricity. OLED displays have several advantages over the LCDs. They are thinner, lighter, brighter, need less power, have better viewing angles, contrast and response time for video and animation. OLEDs are also cheaper and easier to manufacture. On the other hand, LCDs offer better legibility in bright ambient light .Everything They might sound alike, but the processes are completely different.

 OLED panels emit their own light when an electric current is passed through, whereas cells in a LCD-LED display require an external light source, like a giant backlight, for brightness. This backlight is what separated LCD screens from their LED variants. A traditional LCD screen has a backlight (called a cold-cathode fluorescent light, or CCFL) which is uniform across the entire back of the screen.

This means that whether the image is black or white, it is being lit by exactly the same brightness across the panel. This reduces what we call "hotspots," or areas of super bright light, because the actual light source illuminating them is uniform.

This all started a few years back when engineers at companies like Samsung and Sony introduced an array of LEDs as a backlight, which meant that if a certain part of the screen was black then those LEDs behind that portion could be turned off to make it appear blacker. This is what separates OLEDs from LCD/LED displays. In an OLED TV display, the pixels themselves are the things producing the light, and so when they need to be black they are able to turn off completely, rather than relying on a backlight to turn off on their behalf.

HOW DOES OLED WORKS?

An OLED screen includes a number of components. Within the structure, called the substrate, is a cathode that provides electrons, an anode that "pulls" the electrons, and a middle portion (the organic layer) that separates them.

Inside the middle layer are two additional layers, one of which is responsible for producing the light and the other for catching the light. 

The color of the light that's seen on the OLED display is affected by red, green, and blue layers attached to the substrate. When color is to be black, the pixel can be turned off to ensure that no light is generated for that pixel.

This method to create black is very different than the one used with LED. When a to-be black pixel is set to black on an LED screen, the pixel shutter is closed but the backlight is still emitting light, meaning it never quite goes all the way dark.

 WHERE DOES OLED TECHNOLOGY USED?

OLED displays are used in televisions, laptop and desktop computers, cellular phones, digital video cameras, DVD players, PDS’s (personal digital assistants) and car stereos. New technologies that build on the OLED include the FOLED (flexible organic light-emitting display), which promises to bring portable, roll-up displays to the consumer market within the next few years. According to market analysts Display Search, OLED display revenues will grow to $4.5 B by 2011, up from $0.5 B in 2006.

 SOME COMMON & FREQUENTLY ASKED QUESTIONS (FAQ's)    

1. Is OLED better than LED? They're different. OLED excels in some areas, such as contrast, color accuracy, and black levels – though the low brightness might rub you the wrong way.

 2. Why is OLED so expensive? They're expensive and difficult to produce, with a lot of models suffering breakages while on the factory line. 

3.Is OLED better than 4K? OLED TVs itself have a crisp 4K resolution, but most of the 4K TVs don't have OLED panels.

ADVANTAGES AND DISADVANTAGES OF OLED

ADVANTAGES

1. OLED have best Picture quality than any other technologies.

OLED SCREEN OF IPHONE

2. OLED have Better viewing angle,  High contrast and vivid colors.

3. No Ghosting while watching the Tv.

4. The result is remarkably dark blacks in an image, and when you combine this with the   brightness of the whites an OLED panel is able to produce you're left with a fantastically vibrant image.

DISADVANTAGES

   Mainly  there are only two disadvantages, and they are

    1.There is a chance of screen burning.

    2. High cost for  OLED Technlogy.

Hope you found the information that your searching for, Please feel free to share this blog . If you have any queries leave in the comment section

THANK YOU visit again..