PixelExams

Large-screen examination

Put your TV screen through its paces.

Use full-screen patterns to examine a television for dead or stuck pixels, dirty screen effect, uneven lighting, gradient banding, crushed shadows, motion problems, sharpness, overscan, geometry, and image retention.

See what it checks
Remote-friendly controlsUse arrow keys and Enter, or use the large on-screen buttons with a mouse, touchpad, or touchscreen.
No test video requiredPixelExams generates every pattern directly in the browser at the TV's current resolution.
Private and localYour ratings and report stay in the browser. Nothing is transmitted to PixelExams.

A complete visual pass

What the TV exam checks

Run the suite in a dim room and again with ordinary room lighting. Sit at your normal viewing distance for motion and banding, then move closer for individual pixels.

RGB

Dead and stuck pixels

Black, white, red, green, and blue fields make non-working or permanently lit subpixels easier to spot.

Uniformity and DSE

Near-black, mid-gray, and bright fields reveal clouding, backlight bleed, vertical bands, tinting, and dirty screen effect.

Gradients and shadow detail

Grayscale steps and smooth ramps expose crushed blacks, clipped whites, posterization, and visible banding.

Motion handling

A controlled moving bar and object help reveal judder, blur, trailing, stutter, and aggressive motion processing.

Sharpness and overscan

Fine lines, edge markers, and a screen grid reveal lost edges, ringing, excessive sharpness, scaling, and cropping.

Geometry and retention

A true circle checks stretching while a checkerboard-to-gray sequence helps expose temporary or permanent image retention.

Ready when the room is

Begin the guided TV inspection

Each screen includes a short instruction and rating controls. The final summary can be printed or saved as a PDF.