Phosphor Display vs One Big Screen

Phosphor simulates a physical LED dot-matrix display on your screen. Send text, images, and animations to a virtual LED panel with authentic phosphor glow, dome highlights, and other visual effects. Control the display over your local network via a built-in HTTP API, or use the web admin panel from any browser on the same network. Supports scrolling text, static images, GIF playback, clock mode, and several generative animations. Features: - Metal-based SDF renderer with per-dot glow - Full RGB per-pixel grid control - 12 visual effect toggles (phosphor persistence, scanlines, CRT curvature, and more) - Built-in web admin panel with image upload - HTTP API for local network automation - Clock mode - Generative animations: rain, plasma, Game of Life, matrix, bouncing dot

ONE BIG SCREEN turns your iPhone, iPad, Mac, or Apple TV into a bold, glowing LED display you can hold up anywhere. Type a message, choose your colors and font, and light up the crowd at concerts, sporting events, parties, raves, rallies, and fan meet-ups. LED BANNERS • Scrolling or static text with a bright LED-matrix glow • Dozens of fonts and full color control • Speed, glow, letter spacing, and dot-grid tuning • Photo backgrounds — put any image behind your text • Eye-catching effects: rainbow, pulse, flicker, bounce, wave, spotlight, and more LIGHTSTICK MODE • Turn your whole screen into a glowing color panel • Fandom color presets, custom colors, and bold rally colors • Flashlight sync — solid, strobe, or pulse-to-the-beat (iPhone) • Setlist mode — auto-cycle colors for each song LIGHT UP TOGETHER • Group Mode syncs banners and colors across nearby phones • Scan a QR code to join — one host lights up the whole section SHARE IT • Export as GIF, video, or transparent video for social • Every saved banner becomes an iMessage sticker automatically EVERYWHERE • iPhone, iPad, Mac, and Apple TV — your banners sync via iCloud • Hold it up, prop it on a stand, or cast it to the big screen No ads. No subscription required. Just light it up. Note: Strobe, beat-sync, and blink features use rapid flashing light that may affect people with photosensitive epilepsy.