To improve the LED screen refresh rate, make sure to use driver IC hardware with an embedded SRAM (static random-access memory), a high-quality PCB layout for your design, and good software like Novastar, Linsn, Colorlight, etc.
The refresh rate must be at least 1920Hz or more for beautiful, flicker-free images on your screen. We’ll discuss in this article some basic concepts you should know about your LED screen refresh rate.
Read more to learn about:
- What is the refresh rate?
- Difference between refresh rate and frame rate.
- Ways to improve your LED screen refresh rate.
- Effects of bad/low refresh rate.
- And other LED screen refresh rate-related information.
2. What Is A Refresh Rate?
The refresh rate refers to the number of times per second the LED screen refreshes its images. It is usually measured and written in hertz (Hz).
The images displayed on your screen result from each LED refreshing hundreds or thousands of times (depending on how low or high the refresh rate of your LED screen is).
For example, a refresh rate of 3840Hz means that the LEDs refreshed 3840 times in one second to draw an image. This refreshment is impossible for the human eye to perceive.
A Regular LED screen needs around 1000Hz. However, for professional uses, it is best to have a higher refresh rate.
If you want to photograph your LED screen or your screen may appear on video, film, or live feed, you will need to have a high refresh rate to produce flicker-free images/footage. In this case, the LED screen requires 2000Hz – 3000Hz or above for regular broadcasting.
A high refresh rate allows displaying of moving images to be more precise and smoother. Especially if the refresh rate matches the camera’s frequencies, it will prevent blinking, and the captured images will look perfect to the audience.
Most modern LED screens can now have up to 10000 Hz, but a refresh rate this high may already result in reduced brightness.
3. What’s The Difference Between Frame Rate And Refresh Rate?
Many often confuse refresh rate with frame rate. While refresh rate is when the LEDs update their colors to draw images on the screen, frame rate refers to the number of frames or images displayed per second.
The refresh rate is usually a lot higher than the frame rate. When an LED screen refreshes, it will repeat the same frame (content), matching the frame rate to the refresh rate.
A regular LED video screen has 24fps to 30 fps, but it can go as high as 60fps up to 120fps. For example, if you have 30fps video content displaying on an LED screen with a 300 Hz refresh rate, the video processor repeats every frame ten (10) times to make the 30 edges fill a full second on the LED screen.
In other words, the frame rate refers to the content itself, while the refresh rate refers to the signal.
4. What Are The Ways To Improve LED Screen Refresh Rate?
Use hardware like driver IC that adopts a high refresh rate. Check for the refresh rate model of your LED screen before buying it, and make sure that you discuss it with your LED screen supplier.
Driver IC with model numbers ICN2153 and MBI5252 has a high refresh rate. Although, these models have adjusted brightness and may affect the screen grayscale feature.
Driver IC with PWM (pulse width modulated) is also a sound choice for a better refresh rate and grayscale. Look for models MBI5153 or ICND2055.
- PCB Design
Use a high-frequency PCB layout for your design. It is also helpful in meeting your needs, especially when incorporating a special signal requirement into your LED screen components.
Use high-quality software that matches your LED screen. The most commonly used software is Novastar, Colorlight, Linsn, and others. Good quality and fitting software ensure smooth playing and display of images.
5. How Does Poor Refresh Rate Affect LED Screen?
It is sometimes impossible to test the refresh rate of an LED screen by just looking at it with your own eyes. The actual test is to shoot an image using a good-quality camera like a DSLR to see if your LED screen has a high refresh rate.
- Black Scan Lines
These lines are horizon lines that appear on your screen when shot by or viewed through a camera.
Another effect of having a low refresh rate is having indiscernible flickers on your screen, especially when displaying HD video content.
- Trailing Smears
Smeared images on your LED screen will make the picture displays look torn off and unnatural.
- Mosaic Effect
It is often called ghost effects, where tiny colorful dots/blocks are shown on the screen. It makes the images look pixelated and unpleasant to see.
- Uneven Color
Some discoloration may also appear due to the low refresh rate. And both black and white images may not appear pure black and white.
All these adverse effects of having a low refresh rate may not only cause dissatisfaction among your viewers, but they may also cause eye soreness and irritation. It is also not helpful for your brand or event to showcase your ads or visual displays on a “not-picture-perfect” screen.
It will reflect your reputation and may result in lower audience engagement. Your HD visual displays that you worked hard for or paid for will not be given justice on screen with the issues mentioned above.
Refresh rate is one of the most overlooked LED screen features/specifications. While the screen resolution, screen brightness, viewing distance/angle, etc., are essential to delivering a high-quality audio-visual display, refresh rate is just as important as them.
The goal of using an LED screen in the first place is to provide your audience with a viewing experience that will get their attention and engage them. But having bright and colorful images is not enough to entice them.
You also have to make sure that the photos are clear, smooth, and look perfect to the audience and their camera.
Hence, when purchasing your LED screen, consider examining the hardware, PCB design, and software used by your LED display manufacturer. It is also best to discuss your goals with your supplier. That way, they know what you want and what you expect with your LED screen.
Understandably, as a business owner, you want to be sure of the quality and performance of the LED screen you will buy since it can make or break your goals.
Here at YUCHIP, we prioritize the needs and requirements of our clients. Our goal is to help them achieve their business goals through our high-end and high-quality LED screen products.
We are a trusted and leading LED screen manufacturer and provider of LED solutions applicable to various environments. Also, we will take care of all your LED needs with our packaged products and services. We can also customize solutions specifically designed for your requirements.
We used the highest quality LED materials and components to ensure that your LED display screen will deliver superb performance and picture-perfect display quality.
Should you have a pressing question regarding our product refresh rate and other specifications, please feel free to leave us a message.