Evaluate your monitor's viewing angle performance with colored angle wedges, a full-width grayscale ramp, and a uniform gray screen. Detect color shifts, brightness drop-off, and washout at extreme viewing angles.
Start with Angle Wedges mode and position yourself centered at normal viewing distance.
Move your head to the side until you reach a 45-75° viewing angle relative to the screen.
Check if colors remain vivid or if they wash out and shift. Text labels show the approximate viewing angle at each wedge.
Switch to Grayscale Ramp and Uniform Gray modes to check for banding, brightness drop-off, and color tinting at angles.
What is Viewing Angle Test?
Different display technologies handle off-center viewing very differently. IPS panels maintain color accuracy at wide angles but suffer from IPS glow. TN panels shift colors dramatically when viewed from below. VA panels lose contrast at angles. OLEDs maintain near-perfect color at all angles.
This tool provides three test patterns:
Angle Wedges: Colored segments radiate from center with angle markers at 0°, 15°, 30°, 45°, 60°, and 75°. Move your head to each angle — colors should remain vivid and accurate.
Grayscale Ramp: A 10-step gradient from black to white spans the full screen width. Viewed from an angle, the ramp should remain smooth without banding, inversion, or color tinting.
Uniform Gray: A 50% gray screen reveals brightness drop-off, color shifts, and IPS glow when viewed off-center.
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FAQ
What viewing angle is considered good?
IPS panels typically maintain accurate color up to 178° (89° from center). TN panels usually start shifting color at 30-45° horizontally, and much sooner vertically. OLEDs maintain near-perfect color at all angles. If colors shift noticeably before 45°, your panel has limited viewing angles.
What is IPS glow and how do I spot it?
IPS glow is a silvery or orange sheen visible on dark content when viewed at an angle — most noticeable in the corners. Use the Uniform Gray screen in a dim room and move your head to check for glowing patches at the corners.
How does the grayscale ramp test viewing angles?
A good monitor shows a smooth, neutral gradient at all viewing angles. TN panels may show color inversion (dark becomes light) at certain angles. Banding (visible steps instead of smooth transitions) may appear on low-quality panels. The 10 steps should transition smoothly with no added color tint.
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