OLED stands for Organic Light Emitting Diode. Basically, OLED TVs use organic materials in their panels that can glow when an electric current passes through them. The conventional display panel of an LED TV, on the other hand, consists of an LCD screen backlit by small LEDs behind the LCD panel. The main difference between regular LEDs and OLEDs is that OLEDs light up individual pixels while conventional LED panels light up the entire screen. The display's flash control in pixels enables OLED displays to achieve higher contrast and excellent color accuracy. With OLED it is possible to reproduce true black as the pixels can be completely turned off - which is not possible on LED TVs.
In addition, OLED has taken a huge leap over conventional LEDs in terms of response time. OLED is touted to be 1,000 times faster, meaning there won't be a noticeable blur with fast-moving images. If you want to get the best picture, an OLED screen should be your choice. They display true colors with perfect blacks. But they cannot become extremely bright.
The bigger problem with OLEDs, however, is color burnout. If you watch a TV channel or content with a static element, such as a logo, the logo will “burn” on the screen. This is the recording process. Burning occurs when the same content with a static element is viewed for hundreds of hours. While this problem is unlikely with normal TV usage, if you watch only one channel or just play a game for hours, there's a chance that the OLED TV will develop screen burn-in on areas with static content.
QLEDs are quantum dot LEDs that are nothing but microscopic molecules (nanoscale semiconductor crystals) that, when impacted by incident light, emit light of their different colors. They have a good ability to absorb and emit light, so they are suitable for creating vivid images. The biggest advantage of QLEDs aside from the very good picture quality is that they can be a lot brighter than OLEDs. Some of the high-end QLEDs on the market have 2000 nits of brightness. This means that no matter how bright your room is, you can still enjoy content on your QLED TV without worrying about reflections on the screen.
HDR (High Dynamic Range) is generally a technology that improves two important factors: contrast ratio and color accuracy, of the content on the TV. With HDR, the bright parts of the image will be much brighter. So it looks like the image has more depth. The color range also expands to show brighter blues, greens, reds, and everything in between. As a result, HDR-compatible movies push TVs to their limits, with brighter highlights, perfect blacks, and a wider color gamut.
Now there is no single HDR but several of them. HDR10 is an example. TV manufacturers can use this HDR format without paying royalties.
HDR10 uses static metadata. Metadata is additional data provided to the TV to tell the TV how to display HDR content. Static metadata means that this data is embedded one at a time. This is different from dynamic data where instructions are given scene by scene or sometimes even frame by frame. Dynamic metadata means more refined HDR. This is what distinguishes the newer HDR10 format known as HDR10+. Many of today's new mid-to-high-end TVs have HDR10+.
Better than HDR10+ is the exclusive Dolby Vision format HDR. This HDR format is often associated with Dolby Atmos or Dolby Digital sound systems, and the TVs that come with both are marketed as Dolby Cinema TVs. Since Dolby Vision is a proprietary format, most premium brands can afford to add Dolby Vision HDR to their TVs. Dolby Vision uses dynamic metadata. Dolby Vision outperforms HDR10+ by supporting 12-bit color depth. While this difference may not seem like a big deal, it has profound implications when it comes to color reproduction. With 12-bit, Dolby Vision HDR TV can produce up to 68 billion colors compared to the 1 billion colors produced with HDR10 or HDR10+.
Like HDR10, Dolby has upgraded the Dolby Vision service. Dolby Vision IQ has all the functionality of Dolby Vision including 12-bit color depth and dynamic metadata processing. However, the added functionality is that Dolby Vision IQ HDR-enabled TVs use dynamic metadata to display HDR content.
So we've covered the key technologies that have revolutionized TVs. When it comes to displaying accurate colors and contrasts, OLED is arguably the best display technology. QLED gives it tough competition. In fact, it surpasses OLED in terms of durability and brightness. HDR is another important technology to consider when buying a new TV. Dolby Vision IQ is probably the best HDR technology available.
Hopefully, with this post, you now know about the Newest Technologies Of TV in the world and you will make a more informed decision when buying a new TV.