Backlight Bleed & IPS Glow Test
Inspect edge light leakage, corner IPS glow, and diffuser clouding on IPS, VA, and LED displays. Click to enter Fullscreen mode in a dark room.
Backlight Bleed (Hardware)
Occurs when the bezel frame pinches the LCD matrix, allowing internal LED light to spill around the edges. Bleed does not shift with viewing angles.
IPS Glow (Optical)
A natural physical characteristic of In-Plane Switching liquid crystals. IPS glow changes in intensity and moves when you change your viewing angle.
OLED Infinite Contrast
OLED and AMOLED screens have zero backlight bleed and zero IPS glow because each pixel produces its own light and powers off completely.
How to Accurately Test for Backlight Bleed
- Turn Off Ambient Room Lights: Backlight bleed is only noticeable in dark or dimly lit rooms.
- Set Normal Brightness: Calibrate your display to 120–150 nits (roughly 30% to 50% brightness on most gaming monitors) rather than 100% max.
- Enter Fullscreen Mode: Click the viewport above or press F.
- Step Back 3–4 Feet: Look straight at the center of the panel. Light bleeding will appear as static yellowish or white plumes escaping from the frame edges.
Record Video Proof for RMA Claims
Need to return a defective monitor? Record your test in fullscreen and download a high-definition video file to submit to customer support.
Pre-Built Screen Test Modules
Run dedicated hardware-level automated test patterns to diagnose panel defects, calibration anomalies, response times, and subpixel clarity.
Dead & Stuck Pixel Scanner
Automatically cycles through high-contrast primary RGB and CMY solid colors to easily spot permanently dead (black) or stuck (single color) subpixels.
Backlight Bleed & IPS Glow
Presents a 100% pure black field with subtle corner and edge quadrant markers to inspect light leakage on IPS, VA, and edge-lit LED displays.
OLED Burn-in & Ghosting
High-frequency rapid color cycling and noise dithering to unstick stubborn pixels, test for image retention, and exercise OLED phosphors.
Color Uniformity & Banding
Renders ultra-smooth horizontal/vertical color ramps and grayscale steps to diagnose color stepping, banding, and dirty screen effect (DSE).
Contrast & Gamma Matrix
32-step shadow detail (0%–15% IRE) and highlight blocks (85%–100% IRE) to detect crushed shadow blacks and clipped highlight whites.
Motion Blur & UFO Refresh Rate
High-speed animated UFO objects moving at pixel-synchronized velocities with real-time FPS/Hz detection to test display ghosting and MPRT.
Text & Subpixel Clarity
High-density 1-pixel micro-grids and font rendering tests across varied point sizes to check ClearType antialiasing and RGB/BGR subpixel layouts.
Ambient Ring Light & Glow
Transforms your monitor into a soft studio ring light or warm ambient glow for Zoom video calls, streaming, and soft night desk lighting.
Solid Color Palette & Custom Shade Generator
Select from standardized screen calibration shades or generate custom RGB/Kelvin values for panel analysis, photography backdrops, and ambient lighting.