Protection Modes
OLED Guard Pro offers four overlay modes, each with different visual characteristics and effectiveness.
Noise (Recommended)
The default and most effective mode. Renders an animated blue-noise pattern that exercises OLED sub-pixels subtly over time.
- Multi-octave sampling for natural-looking patterns
- Spatially decorrelated across screen regions
- Time-varying motion prevents the overlay itself from causing burn-in
- Adjustable speed and scale
Best for: All use cases. The noise pattern is subtle enough to be nearly invisible at low intensities.
Static
A uniform flat overlay that dims the screen evenly.
- Simplest mode — applies consistent dimming everywhere
- No animation or movement
- Lowest GPU usage
Best for: Simple dimming when you just want to reduce overall brightness.
Pixel Shift
Subtly shifts content by 1-2 pixels in a circular pattern over time.
- Prevents static content from staying in exactly the same position
- Very subtle — most users won't notice it
- Works alongside other modes
Best for: Supplementary protection — combines well with Noise mode.
Dithering
An animated Bayer matrix dithering pattern.
- Ordered dithering creates a structured overlay
- Animated to prevent static patterns
- More visible than Noise but effective at lower intensities
Best for: Users who prefer structured patterns over organic noise.
Automatic Mode
Instead of choosing a fixed mode, Automatic Mode uses a closed-loop feedback controller to adjust protection parameters in real-time based on what's actually on screen.
It monitors:
- Average brightness — how bright the screen content is
- Bright pixel ratio — what percentage of pixels are above the risk threshold
- Average exposure — accumulated burn-in risk across the screen
- Peak exposure — the worst hotspot on screen
- High-risk ratio — percentage of pixels in the danger zone
Based on these metrics, it continuously adjusts sensitivity, accumulation speed, recovery speed, and overlay intensity. No manual tuning required.