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TV : 4K, OLEDHDTV (1080P or 720P video resolution) has become the norm on digital TV sets. LCD, LED display TV models are commonplace. The new TV models offer Ultra High Definition UHD also known as 4K. Not quite true 4K resolution, the new 4K TV models do have the potential for four times the detail of the 1080P TVs. What do they cost? Not as much as you may think. What does 4K mean on a TV? The standard for HD is 1080p, measured by the number of vertical pixels. 4k measures the horizontal pixels instead, and any TV described as 4K will have a resolution of at least 3840 x 2160. The result is a picture with about 8.3 million pixels, or about four times as many as a standard HDTV.
Of course, a 4K TV has to have 4K source content to display. Upgrades will be required for TV broadcasters before UHD content is available and a ATSC 3.0 tuner is needed. Bluray 4K or UHD Bluray requires a UHD Bluray player as the standard Bluray players cannot play 4K Bluray discs. Online providers offer 4K content (Netflix). Called HEVC or High Efficiency Video Coding, the new compression method works only with compatible smart TVs. New Ultra HD sets coming out this year from several manufacturers, including LG, Samsung and Sony, will support HEVC. The good news is that 4K TVs will upscale their source content to give you fantastic video detail. • Samsung 4K TV Review OLED TVOLED (Organic light emitting diode) technology is based on an organic film emitting light under electric stimulus. LG TV is the main company offering OLED TV displays and currently offer bendable TV screens. LG will offer a plastic based TV screen which will be unbreakable and bend even more than the glass based OLED screens. OLED TV is expensive today but the potential is limitless. TV displays 1/2mm thin are possible. Because OLED displays do not require a backlight, pixels that are switched off are truly black, so OLED achieves deeper black levels and a higher contrast ratio when compared to LCD (liquid crystal display) TVs. Conventional cold cathode fluorescent lamp (CCFL) backlighting and other layers are no longer necessary. This makes possible a much thinner, lighter TV. OLED TV also uses much less power. OLED is a TV display panel technology, which displays video in new ways. ULTRA High Definition (UHD), also known as "4K," is a new resolution standard for video that will essentially quadruple current HD quality. Main OLED Panel Technologies: WOLED (White OLED): Uses white sub-pixels with filters (RGBW). It is generally more affordable and efficient, with excellent contrast, making it great for varied lighting conditions. Produced by LG TV. QD-OLED (Quantum Dot OLED): Combines a blue OLED source with quantum dots to create red and green. It provides a wider color gamut and higher, more vivid peak brightness, especially in bright, saturated colors. Produced by Samsung TV. Tandem OLED: Stacks multiple emitting layers to significantly increase brightness and panel lifespan, often used in high-end models, including WOLED-based implementations. Sony and Vizio OLED TV will use LG or Samsung OLED panels. TCL OLED panels are primarily produced by TCL CSOT (China Star Optoelectronics Technology), a subsidiary of TCL Technology that manufactures display panels. While TCL CSOT is actively developing its own OLED technology, TCL also sources high-end OLED panels from LG Display for its premium TVs. Columbia ISA Audio Video Empowering consumers through information |