📄️ SMIL Standard
Complete guide to SMIL (Synchronized Multimedia Integration Language) - the W3C standard for digital signage playlist definition, content scheduling.
📄️ POPAI/Shop! Standards
Complete guide to POPAI (Shop! Association) standards for digital signage in retail environments, including display classification, measurement guidelines.
📄️ DPAA Standards
Complete guide to DPAA (Digital Place Based Advertising Association) standards for digital out-of-home advertising, including measurement, verification.
📄️ Screen Resolutions
Complete guide to screen resolutions for digital signage displays - HD, Full HD, 4K, 8K specifications, aspect ratios, pixel density.
📄️ Content Formats
Complete guide to content formats for digital signage - video codecs (H.264, H.265), image formats (JPEG, PNG, WebP), audio specs.
📄️ Display Brightness (Nits)
How many nits a digital signage display needs by environment: indoor 350-700, storefront 2,500-4,000, full sun 5,000+. Brightness chart, sunlight readability, night dimming rules.
📄️ Power and Running Cost
How much electricity digital signage uses: watts by screen size, annual kWh and cost per screen, player power draw, and the settings that cut the bill most.
📄️ Network Bandwidth
How much internet digital signage needs: bandwidth per screen by content type, why playback is local not streamed, sizing a fleet, and cellular data budgets.
📄️ Codec Support Matrix
Which codecs each digital signage player decodes in hardware: H.264, H.265/HEVC, VP9, AV1 across Raspberry Pi, Android, Chrome OS, Windows and iPad, plus the Pi 5 H.264 trap.
📄️ Digital Signage Network Architecture: CMS, Players, Delivery
How a digital signage network is built: cloud or on-premise CMS, caching players, outbound HTTPS, bandwidth per screen, VLANs, monitoring, failover and scale.
📄️ QR Code Size and Scan Distance
How big a QR code must be on a digital sign: the 10:1 distance rule, sizes in inches and pixels for 43 to 75 inch 1080p screens, quiet zone and timing.
📄️ Color Contrast
Readable color combinations for digital signage with computed WCAG 2.2 contrast ratios, why screens need 7:1, color-blind safe pairs and a worked example.
📄️ Display Lifespan and 24/7 Ratings
How long digital signage screens last: hours to half brightness, years at 12, 16 and 24 hours a day, 16/7 vs 24/7 duty ratings, what fails first, budgets.
📄️ IP Ratings for Outdoor Signage
IP ratings for outdoor digital signage explained: IEC 60529 digit tables, IP54 vs IP55 vs IP65 vs IP66, which rating for each location, IK impact ratings.
📄️ Temperature and Ventilation
Operating temperature and ventilation for digital signage screens and players: typical ranges, heat sources, clearance, fan sizing, throttling, cold starts.
📄️ Image Sizes
Digital signage image sizes in pixels: 1920x1080, 1080x1920, 3840x2160, zone sizes for L-bars and tickers, video walls, formats and file-size targets.
📄️ Aspect Ratios
Digital signage aspect ratios explained: 16:9, 9:16, 4:3, 21:9, 32:9 stretch bars and LED walls, with letterbox, crop and stretch math and safe crop zones.
📄️ Video File Size and Bitrate
How big are digital signage videos? MB = Mbps x seconds / 8, file size per minute at 720p, 1080p and 4K, minutes per 1 GB and 3 GB, and download times.
📄️ Safe Area and Margins
Safe area and margins for digital signage: TV overscan and how to turn it off, title-safe 90 percent and action-safe 93 percent pixel sizes, bezels and tickers.
📄️ TV and Display Dimensions
Width and height of 32 to 98 inch TVs and displays in inches and cm from the 16:9 formula, plus portrait sizes, area, PPI and video wall totals.