Contrast Test
Judge your monitor’s tonal depth and contrast via a black-white gradient.
▶ Start test · Contrast
Assess the black-to-white gradient and tonal depth. Arrow keys flip the gradient direction. a total of 2 steps
💡 Operation tips
- Click the right half of the screen to move to the next view; when the current project’s views are done it advances to the next project, and when every project is finished it exits fullscreen automatically.
- Click the left half of the screen to go back to the previous view; at the very first view it stops.
- After entering fullscreen, the top label and bottom buttons auto-hide after 3 seconds so you can view the screen unobstructed.
- Hover in the bottom-centre of the screen for 1 second to bring the label and buttons back; move away and they hide again after 1 second.
- The breathing test ends automatically after about 10 seconds.
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Contrast testing
Contrast is one of the most important picture-quality metrics — the brightness ratio between the whitest white and darkest black. Higher contrast means richer tonal depth and clearer shadow detail.
Kinds of contrast:
- Static contrast: the ratio of brightest to darkest in one scene. IPS ≈ 1000:1, VA ≈ 3000–5000:1, OLED theoretically infinite.
- Dynamic contrast: a number derived by dynamically adjusting the backlight — usually advertised very high but of limited real value.
- ANSI contrast: measures bright and dark areas simultaneously with a checkerboard, closest to real-world use.
How to judge your result:
- A smooth black-white transition, shadows without a muddy gray cast and no clipped highlights mean good contrast.
- High contrast matters most for dark-scene games, movies and reading.
- VA panels usually perform best here.
FAQ
What is static contrast?
The brightness ratio between the whitest white and darkest black in one scene. IPS is typically 1000:1, VA reaches 3000–5000:1, OLED is theoretically infinite. It represents the tonal range you can truly perceive.
Does dynamic contrast mean anything?
Dynamic contrast adapts the backlight to the scene, so the advertised number is huge (millions:1) — but real tonal range barely improves; it is largely marketing. Static and ANSI contrast are the values that matter.
Which panels do best on contrast?
VA usually wins: deeper blacks and clearer tonal steps. OLED, being self-emissive, produces true black with theoretically infinite contrast. IPS sits lowest of the three.
How do I judge good contrast?
On a black-white gradient, look for a smooth transition, no milky gray in the shadows and no clipped detail in the highlights. Pay attention to visible shadow detail — that’s key in FPS games.