Notes from the optical side of the LED industry — measurement, specification, and the things spec sheets leave out. Written for integrators, consultants and anyone who has to put numbers into a tender.
- Moire Pattern on LED Walls: Why Scan Lines FollowTwo artifacts, two kinds of physics — and one reason they crawl together.
- Control Room Video Walls: The Specs That MatterTwelve-hour shifts, dark UI, overhead light. What to specify instead of peak nits.
- LED Contrast Ratio Is a Property of the Room, Not the ScreenSCI, SCE and gloss — three numbers that make black level and glare specifiable.
- Screen Door Effect Fixes That Cost You the PictureDiffusion fills gaps but compresses grey scale. Diffraction does not.
- Dirty Screen Effect on LED Walls: A Noise Problem, Not a Colour OneWhy anti-glare haze costs more than it saves, and what to measure instead.
- Every LED Wall Says COB. That Label Tells You Nothing.Packaging is a commodity. The surface is the product.
- COB's Blind Box: Why Wavelength Binning Comes FirstFront-view colour shift starts at the chip bin, not the factory.
- Why Two LED Walls With the Same Colour Gamut Look Nothing AlikeDominant wavelength is hue. Perceived saturation lives in black level.
- LED in a Sanctuary: Why Peak Brightness Is the Wrong QuestionWorship spaces reward restraint: black level, low-brightness grey scale, reflectance.
See the difference instead of reading about it. NovaVista runs remote live demos and can supply evaluation panels for side-by-side testing against your current reference wall.