If you’ve ever used a monitor with an IPS LCD panel, you might have noticed a soft glow or faint light coming from the corners or edges of the screen, especially when viewing dark scenes or working in a dimly lit room. This phenomenon, often referred to as “IPS glow,” is a common topic of discussion among tech enthusiasts and everyday users alike. But what exactly causes it, and is it something you should worry about? Let’s break it down.
IPS (In-Plane Switching) technology is praised for its superior color accuracy, wide viewing angles, and consistent image quality. Unlike older LCD panel types like TN (Twisted Nematic) or VA (Vertical Alignment), IPS panels align liquid crystals horizontally, which helps maintain color fidelity even when viewed from extreme angles. However, this design also contributes to IPS glow. The glow occurs because light from the backlight can leak slightly around the edges or corners of the screen, particularly in dark environments. This isn’t a defect—it’s a side effect of the technology itself.
You might wonder how IPS glow differs from backlight bleed, another issue that plagues LCD displays. While both involve unwanted light, backlight bleed is usually caused by uneven pressure on the panel or manufacturing inconsistencies, resulting in patches of light along the edges. IPS glow, on the other hand, is uniform and shifts depending on your viewing angle. If you tilt the screen or move your head, the glow may appear stronger or fade away, which doesn’t happen with backlight bleed.
So, does this mean IPS panels are flawed? Not necessarily. Most users consider IPS glow a minor trade-off for the benefits the technology offers. Photographers, graphic designers, and video editors often prefer IPS displays because of their color precision, even if some glow is present in low-light conditions. Gamers, too, appreciate the vibrant visuals and wide viewing angles, though those who play dark, atmospheric games might find the glow slightly distracting.
There are ways to minimize IPS glow if it bothers you. Adjusting your room lighting can make a big difference—avoid using your monitor in complete darkness, as this exaggerates the glow. Lowering the screen’s brightness setting to a comfortable level also helps. Some users enable features like “local dimming” if their display supports it, though this is more common in high-end monitors or TVs. If you’re shopping for a new IPS panel, look for models with anti-glare coatings or advanced backlight designs, as these can reduce the effect.
It’s worth noting that not all IPS panels are created equal. Higher-quality displays, like those from trusted manufacturers, often use refined manufacturing techniques to keep IPS glow to a minimum. For example, panels with thinner bezels or better light-sealing materials tend to perform better in dark environments. If you’re unsure where to start, websites like displaymodule offer detailed comparisons and recommendations for displays that balance performance and visual comfort.
What about alternatives? VA panels are known for deeper blacks and less glow, making them popular for media consumption in dark rooms. However, they typically have narrower viewing angles and slower response times compared to IPS. TN panels, while affordable and fast, suffer from poor color reproduction and limited viewing angles. Ultimately, the choice depends on your priorities. If color accuracy and viewing angles matter most, IPS remains a strong contender—just be prepared to manage a bit of glow.
As display technology evolves, manufacturers are finding ways to address IPS glow. Newer innovations like mini-LED backlighting and OLED displays promise better contrast and reduced light leakage. However, these technologies come with their own trade-offs, such as higher costs or potential burn-in risks. For now, IPS panels continue to strike a balance between quality and accessibility, making them a go-to choice for many professionals and casual users.
In summary, IPS glow is a natural characteristic of the technology, not a flaw. While it can be noticeable in specific scenarios, it rarely impacts the overall usability of the display. By understanding how it works and taking simple steps to mitigate it, you can enjoy the benefits of IPS without letting the glow overshadow your experience. Whether you’re editing photos, gaming, or binge-watching your favorite shows, knowing what to expect helps you make informed decisions—and maybe even appreciate the science behind your screen.