What Is “Blooming” or the “Halo Effect” on a Monitor or TV – Guide
Blooming, also known as the halo effect, is a display artifact that occurs when very bright objects are placed or moved to darker areas of the scene. We have a perfect example in an image of a starry sky. What happens is that a kind of halo appears around the object itself, that’s why it’s called the halo effect. An issue associated with local matrix dimming on Smart LED TVs, as OLED technology does not have this issue. It should be noted that organic LED panels are able to turn the pixels on and off individually and are self-emissive, which means that they can achieve a perfect black with no blooming issues. However, LED-backlit LCD screens use a full-array local dimming system for most televisions or edge-lit local dimming for displays. In the case of full-matrix local browning systems, they are most affected by flowering. Blooming, also known as the halo effect, is an artistic representation that occurs when light streams from isolated bright objects on a screen to the dark areas around them. This creates a kind of aura around the object, hence the name “halo effect”. Associated with a full range of local dimming on LED screens. Manufacturers of monitors and TVs use two main types of LCD screens that are LED and OLED backlit. While OLED displays are self-emissive and can turn off individual pixels for perfect blacks, LED-backlit LCD displays must rely on full-array local dimming or edge lighting to produce deeper black levels.
What causes bloom or halo effect
For better backlighting, LCD TV manufacturers add an LED system behind the screen, divided into dimming zones. When a scene needs to show a bright object surrounded by dark areas (the starry sky example is perfect), the LED section behind the object lights up while the rest of the areas remain dimmed. The problem is that light from the illuminated area spreads to the surrounding unilluminated areas, causing a slight glow. This creates an annoying halo around the shiny object. We see this in the subtitles to give another example. Saying that all LED-backlit LCD TVs with full matrix local dimming suffer from blooming. Although the halo effect may vary depending on the number of local dimming zones. That’s why this section is so important: the more local dimming zones a television has, the less the flowering effect.
How to know if there is blooming on your TV
The truth is, it is very easy to determine if your TV is suffering from flowering issues. All you have to do is do a quick search on YouTube and you’ll see that there’s no shortage of options to see if your TV is suffering from the dreaded halo effect. LG is a big supporter of OLED technology, which is logical considering it’s the biggest supplier of organic light-emitting diode panels today, so the Seoul-based manufacturer also released some videos showing you. how to to define up your TV to the will put sample.
How to avoid blooming or halo effect
Unfortunately, there are few options to solve this problem, other than buying a TV with more dimming zones or an OLED model. But you can reduce this annoying problem a bit. For example, some televisions allow local dimming to be adjusted locally. The lower it is, the less bright the images are affected by the bloom effect. But in return, of course, you lose the contrast ratio. You can also lower the backlight to reduce flowering. As you may have seen, this aberration is a common problem with an LCD TV, especially mid-range models. Therefore, if you want to avoid the halo effect, you should bet on an OLED Smart TV or an LCD model with a greater number of attenuation zones.
Final note
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