What is the difference between 4K and OLED TV?

Answer this question

  • What is the difference between 4K and OLED TV?


Answer #1 | 29/12 2013 02:37
4k is pixel count. oled is how lights are generated
Answer #2 | 02/01 2014 15:34
4K -- also known as UHD TV -- is a digital video format; it simply describes a screen that is capable of showing a 3840 pixel x 2160 pixel picture. 4K TVs, as we're currently seeing them on the market, come in LED. OLED, by contrast, is a technology (like plasma, or LCD/LED) that is being fitted in OLED TVs as their display type. The OLEDs currently on the market are 1080p. The biggest known downfall to OLEDs is that they don't exactly have the longest life span as their colors tend to "decay" over a short amount of time. Their ability to display colors effectively is still not as accurate as other display types. Like everything else, these issues will be corrected as time goes on. It's just like all of the issues that Plasma had when it first came out, with ghosting and screen burn-in.
Answer #3 | 29/12 2013 07:18
first of all, 4k is NOT a pixel count. 4k stands for the number of scan lines, being 4096 exactly. 4k is the scan resolution used for hollywood movies when they are edited or SGI effects are added. 4k video equipment was developed by Kodak in the 1980s for electronic film editing. the number of pixels across each scan is dependent on the widescreen aspect ratio, some films are stretched wider than others so that is not a standardized number. in the case of 16:9 used in television sets, that would be 7282 giving a total pixel count of 30 Megapixels per frame. to compare, HDTV is 1088 scan lines (the top and bottom four lines are encoded but not displayed) and has a 2 MP size frame. This size was selected because that represents the limiting visual resolution for a normal sized home display (3 - 5 foot size). 4k is used for theatrical size display on the order of 15 to 20 foot size. So unless you have a humongous sized living room, a 4k display is of no practical value, you won't see any difference over normal HDTV. So while that may be the future of video for people with more money than brains, i wouldn't save my money up to get one. Modern digital TV sets work mostly by having an LCD mask for the picture elements, and a color light source. The LCD can be transparent to let light through, or progressively darken to opaque. If the display uses LEDs, they are just a light source to illuminate the LCD mask. The next phase of display development is to eliminate the LCD, and have a pixel sized LED be both the light source and the picture element. This requires a pretty hefty sized display to fit 2 million LEDs in it. This has merit mostly for large displays, perhaps the 20 foot size you need for 4k.

Possible answer