3840Hz vs 7680Hz:
Which Refresh Rate Is Better for Cameras and XR?

Not always. 7680Hz provides a higher refresh rate, which can reduce visible flicker and improve motion smoothness in camera and XR applications. However, the benefit depends on the camera's shutter speed, frame rate, and the specific content. For many standard broadcast and event productions, 3840Hz is sufficient and may offer cost and power advantages. The choice should be based on the project's specific requirements, not just the highest number.

Camera shutter speed and frame rate are the most affected. When the shutter speed is very fast (e.g., 1/1000s or higher), the camera samples the LED screen for a very short time, which can capture the refresh cycle and cause visible flicker or banding. A higher refresh rate like 7680Hz can reduce this effect. Also, when using high-speed cameras or slow-motion capture, a higher refresh rate helps maintain smoothness. For standard 24/30fps shooting with typical shutter angles, 3840Hz is often adequate.

Generally, higher refresh rates can increase power consumption, but the actual difference depends on the driver IC design, LED efficiency, and overall system architecture. Some Uniview LED products with 7680Hz are designed with high-efficiency drivers that may mitigate the increase. However, power consumption should be verified from the specific product's datasheet, as it varies by model and configuration.

Yes, 3840Hz can be used for XR, especially for virtual production stages where cameras are used. Many XR setups require high refresh rates to avoid flicker and moiré patterns, and 3840Hz is often sufficient for standard camera systems. However, for high-end XR with fast-moving cameras or high-speed capture, 7680Hz may be recommended. The suitability depends on the camera's specifications and the production's requirements.

Consider the following factors: camera shutter speed and frame rate, the distance between camera and screen, the content type (e.g., fast motion, high contrast), and budget. If your production involves high-speed cameras, slow motion, or critical flicker-free requirements, 7680Hz may be worth the investment. For general broadcast, events, and corporate applications, 3840Hz often provides excellent performance at a lower cost. Always test with your actual camera setup to confirm.

Potential downsides include higher power consumption, increased heat generation, and possibly higher cost. Additionally, not all content or camera systems may fully utilize the higher refresh rate, so the benefit might not be noticeable in every scenario. It's important to evaluate the specific application to determine if the extra refresh rate is necessary.

Yes, Uniview LED provides products with both refresh rates. For example, the UHD series offers models with 3840Hz and 7680Hz, and the GX Pro series includes 3840Hz and 7680Hz configurations. The choice depends on the specific model and application. Always refer to the official datasheet for the exact specifications.