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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