![]() For example, we have behavioral targets for functions called gamma (for SDR video) and electro-optical transfer function (or EOTF, for HDR video), which specify how much light a TV should produce across a range of electrical stimulus levels. But what does it mean to have “scientific” standards for TVs? Essentially, it boils down to light and color production, two stimuli that can be easily measured.įor both SDR (standard dynamic range) and HDR (high dynamic range) content, there are designated light and color targets that a TV should hit. Scientific standards for HDTV performance have been in place since 1990, and scientific standards for UHD TV performance have been in place since 2015. Knowing some of these basic points before you start shopping around can simplify the process and narrow down your viable options. If you’re buying for a bedroom, you probably don’t need a huge screen.Īnd if your intended room is especially bright, you may want to spring for a premium LCD TV since such models get a lot brighter than budget LCD TVs or OLED TVs. If you’re not planning on playing video games or watching Blu-ray discs, you probably don’t need a TV with a 120 Hz refresh rate, which tends to raise the price. How much control do you have over competing light, such as from lamps and windows?.What’s the right screen size for the room?.What kind of content are you going to watch?.So start by asking yourself a few questions: The key thing to know about modern TVs is that shopping for a new one is less about avoiding a lemon and more about making sure you aren’t paying for features you don’t need or won’t use.īut the good news is that even affordable TVs tend to look excellent if you just want the basics. If you’re eager to buy a new TV but overwhelmed by all the jargon, check out our TV buying guide. The best LCD TVs can create very bright, vivid images.These TVs are our top picks from our various TV guides, which involved hundreds of hours of research and testing. Some of these sets also include local dimming, but it tends to be less effective than in sets with full-array backlights. Other sets are edge-lit, with the LEDs positioned on the sides of the screen. Typically, only pricier TVs have full-array backlights with local dimming. We’ve found that Mini LEDs can help improve contrast and black levels, and reduce halos around the edges of bright objects displayed against a dark background. Some newer sets have Mini LED backlights, which use a large number of even smaller LEDs that can be divided into more zones and locally dimmed. These models include a feature called local dimming, which divides the backlights into zones that can be dimmed or illuminated separately, depending on the scene. While they generally can’t deliver OLED-like black levels, they get better every year, especially models that use full-array backlights, where the LEDs are spread across the entire rear panel instead of just along the edges. (CR has conducted side-by-side testing of OLED and QD-OLED TVs.) And this year LG, which makes OLED TVs using a different technology (called WOLED), is promising to boost brightness on its best models.īut most TVs are LCD sets. Last year Samsung and Sony introduced a new type of OLED TV, called QD-OLED, that can produce a brighter overall image. OLED TVs also have essentially unlimited viewing angles, so the picture still looks great even if you’re not viewing the screen head-on. OLED sets do a great job of displaying the blackest parts of an image, so the deepest shadows can really look black, as in real life, rather than gray. Before you dive into the individual models, it pays to understand the two basic technologies used in today’s televisions: LCD TVs (also called LED TVs for the LED backlights that illuminate the screen) and OLED TVs, where each pixel generates its own light. ![]()
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