Burn in fix

▶ DisplayTest app Freature.

0. Fix Burn-in & DeadPixel
- Display will rapidly filcker, it will fix burn-in and dead pixel on your screen.

1. Find Dead Pixel
- You can find dead pixels by showing different colors on a full screen.

2. Contrast Check
- You can use contrast to check the status of the display.

3. Sharpness Check
- You can check your screen, using sharpness feature.

4. Viewing angle Check
- You can check various angles to see if the viewing angle is correct.

5. burn-in check
- The slide provides an easy way to see where the burnout is located.