1. What is Display Bandwidth?

Display bandwidth refers to the amount of data required to refresh a display per second. It's calculated based on the resolution, refresh rate, and color depth of the display.

2. How Does the Calculator Work?

The calculator uses the display bandwidth equation:

Where:

• \( width \) — Horizontal resolution in pixels
• \( height \) — Vertical resolution in pixels
• \( refresh\_rate \) — Display refresh rate in Hz
• \( color\_depth \) — Bits per pixel

Explanation: The equation calculates the total bits per second needed to refresh the entire display at the specified rate with the given color depth.

3. Importance of Display Bandwidth Calculation

Details: Knowing the display bandwidth is crucial for designing display interfaces, selecting appropriate cables, and ensuring the video source can provide enough data for the display.

4. Using the Calculator

Tips: Enter the display width and height in pixels, refresh rate in Hz, and color depth in bits. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How does color depth affect bandwidth?
A: Higher color depth (more bits per pixel) directly increases bandwidth requirements proportionally.

Q2: What's a typical bandwidth for 4K displays?
A: A 4K display (3840×2160) at 60Hz with 24-bit color requires about 11.94 Gbps bandwidth.

Q3: Does this account for compression or overhead?
A: No, this is the raw uncompressed bandwidth. Actual interface requirements may be higher due to protocol overhead.

Q4: How does refresh rate affect bandwidth?
A: Bandwidth increases linearly with refresh rate. Doubling the refresh rate doubles the bandwidth requirement.

Q5: What interfaces support high bandwidth displays?
A: Modern interfaces like DisplayPort 1.4 (32.4 Gbps) and HDMI 2.1 (48 Gbps) support high bandwidth requirements.