![]() ![]() ![]() The other is the time taken for pixels to respond to new image data and change state. One is the time delay, known as lag or latency, between the output of video data from a device (like a console, PC or set top box) and a viewable image on a given screen. Winner: OLED, unambiguously Mini LED vs OLED: speed and response But as a self-emissive technology in which light is generated by the pixel itself, OLED does have clearly superior viewing angles to an LCD technology, including Mini LED. OLED panels are absolutely perfect when it comes to viewing angles. The basic approach of shining light through an array of liquid crystal cells remains and with it the same built-in limitations including the loss of colour control when viewing the panel off-axis. Mini LED TVs are simply the latest flavour of LCD panel, just with a more advanced backlight. The very name Mini LED is something of a misnomer. Samsung 2021 Mini LED TV (Image credit: Samsung) Mini LED vs OLED: viewing angles But remember that pure brightness isn’t the only metric that matters for HDR performance and contrast. Until proven otherwise, this is an easy win for Mini LED. Mini LED only promises to widen that gap. The majority of existing OLED panels typically achieve 200 nits of full-panel sustained brightness while the brightest LED-backlit LCD TVs can sustain as much as 800 nits across the entire panel. Sony claims its new OLED panel can hit retina-searing 1,300 nits, however, that's only over a very short time period over a small portion of the panel. Read our LG G1 OLED review for a screen that boasts 412 nits of brightness. OLED brightness has stepped up over the past few years. Since OLED can achieve essentially perfect black levels, the dynamic difference or contrast between light and dark pixels is dramatic. The traditional response is that they don’t need to be, thanks to inherently excellent contrast. Samsung 2021 Mini LED TV (Image credit: Samsung) Mini LED vs OLED: brightness As we’ll see, peak brightness won’t be a problem for Mini LED, but entirely eradicated artefacts like bright halos around dark objects won’t be possible either. And that means Mini LED’s HDR performance will be compromised. At least not with any Mini LED implementation that has so far been revealed. In other words, precision lighting for very detailed objects still won’t be possible with Mini LED. On a Mini LED set, it’s not even close: in a 4K panel with around 3,000 lighting zones, each backlight zone would actually drive around 2,700 pixels. Imagine the whole screen entirely black, save for a single pixel out of eight million in pure, bright white – because that’s totally doable on an OLED. By comparison, the per-pixel lighting of OLED means that a 4K set effectively has over eight million zones. That’s a big improvement on existing LCD TVs, but it still implies comparatively low resolution control over lighting and contrast. Upcoming Mini LED TVs are expected to have as many as 3,000 lighting zones. While Mini LED is intended to dramatically improve backlighting control in LCD TVs, it works a little bit differently to OLED. OLED is a self-emissive technology, which means each pixel is its own light source, enabling total control over brightness and contrast. OLED’s core advantage is its per-pixel lighting. We’ll find out whether Mini LED comes out on top for brightness, contrast, HDR performance and response. Below we’ll explore the key differences between Mini LED vs OLED. ![]()
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