Have you noticed that when filming LED displays with your phone, some screens show visible streaks while others don’t? This difference stems from the LED display refresh rate. Let’s dive into its key aspects.
What is LED Display Refresh Rate?
LED display refresh rate refers to the number of times an LED screen refreshes its image per second, measured in “Hz.” This rate directly impacts image stability. For instance, when captured by a high-speed camera, LED displays with low refresh rates exhibit visible water ripple effects and motion blur, whereas those with high refresh rates produce images free of noticeable patterns.
Why LED Display Refresh Rate Matters
When encountering stunning large-screen visuals, we often pause to take photos. However, not all LED displays deliver photographic results matching their real-world appearance.
Screens with lower refresh rates may produce photos marred by visible water ripple effects. Conversely, high refresh rate LED displays deliver superior photographic results, enhancing their visual appeal in photographs.
Differences in LED Display Refresh Rates During Photography
In daily life, common screen refresh rates include 60Hz, 120Hz, and 140Hz. However, LED display refresh rates differ significantly, typically ranging from 1920Hz to 7680Hz. While these differences are imperceptible to the naked eye, let’s explore how varying refresh rates impact camera photography.
Screen Pattern
At lower refresh rates, images and videos captured from LED displays may exhibit water-like ripples, compromising shooting quality. High refresh rate LED displays eliminate these ripples, making them more camera-friendly. This point was previously addressed in the section on the importance of LED display refresh rates.
Scan Rate
Regarding scan rate, lower LED display refresh rates result in slower scanning speeds. Under these conditions, filming may produce noticeable scan lines—black stripes caused by the display’s refresh rate failing to keep pace with the camera’s speed.
Response Rate
During filming, different LED display refresh rates also result in varying response rates for captured live footage. Lower refresh rates yield slower response rates, which become highly noticeable in filmed live images. Conversely, higher refresh rates provide faster response rates, delivering superior performance in filming and making them suitable for various high-end applications.
Price
The refresh rate of an LED display is determined by its IC. Only high-performance ICs can achieve high refresh rates, and these ICs carry higher costs. Consequently, higher refresh rates correspond to higher prices. Overall, LED displays with high refresh rates like, 7680Hz offer the best shooting experience but also command the highest prices.
Common Misconceptions About LED Display Refresh Rates
Many people fall into a refresh rate misconception: Can the refresh rate be increased after an LED display is installed? The refresh rate of an LED display cannot be adjusted post-installation. It is determined during manufacturing.
Therefore, if you desire a higher refresh rate, consult HOLA-LED’s professional team in advance. We will help you achieve a higher LED display refresh rate.
How to Select the Refresh Rate for Your LED Display
In everyday applications like promotional filming, photo check-ins, or live streaming, pursuing a superior experience often means opting for a higher refresh rate. It’s important to note that higher refresh rates come with a higher price tag. This premium cost reflects enhanced quality, so choose an LED display that aligns with your budget and specific requirements.
