Digital Signage Glossary
A comprehensive reference of digital signage terminology, acronyms, and industry-specific terms.
A
API (Application Programming Interface)
A set of protocols and tools that allow different software applications to communicate. In digital signage, APIs enable integration with external data sources, automation, and custom development.
Aspect Ratio
The proportional relationship between a display's width and height. Common ratios include 16:9 (widescreen), 9:16 (portrait), 4:3 (legacy), and 32:9 (ultra-wide).
AV over IP
Audio/Video transmission over standard IP networks, replacing traditional HDMI/SDI cabling for video distribution.
B
Bandwidth
The data transmission capacity of a network connection. Higher bandwidth enables faster content downloads and supports streaming video.
Bezel
The frame surrounding a display screen. "Thin bezel" or "bezel-less" displays are preferred for video walls to minimize gaps between screens.
Brightness (Nits)
Measure of display luminance in candelas per square meter (cd/m²), also called "nits." Indoor displays typically range 300-500 nits; outdoor displays require 2,500+ nits.
C
CDN (Content Delivery Network)
A distributed network of servers that delivers content to users based on geographic location, improving download speeds and reliability.
CMS (Content Management System)
Software platform for creating, organizing, scheduling, and distributing digital signage content. Examples include SignageStudio, Scala, and Signagelive.
Commercial Display
A display specifically designed for professional/business use, featuring extended operation hours (24/7), higher brightness, and better durability than consumer TVs.
Content Loop
A sequence of media items that plays repeatedly. The duration of one complete cycle through all content is the "loop time."
D
Dayparting
Scheduling different content to play at different times of day. For example, breakfast menu in the morning, lunch menu at midday.
Direct View LED
Large-format displays made of individual LED modules, commonly used for outdoor advertising and large venue installations.
DOOH (Digital Out-of-Home)
Digital advertising displayed in public spaces such as billboards, transit stations, and retail environments.
Dwell Time
The amount of time a viewer spends looking at or in proximity to a digital sign.
E
Edge Blending
A technique for seamlessly joining multiple projectors to create a single large image by blending overlapping edges.
Endpoint
In digital signage, an endpoint refers to a media player or display device on the network.
F
Failover
Automatic switching to a backup system or content when the primary system fails.
FIDS (Flight Information Display System)
Digital signage specifically designed for airport departure and arrival information.
H
HDCP (High-bandwidth Digital Content Protection)
Copy protection technology that prevents unauthorized copying of digital content transmitted over HDMI/DisplayPort.
HDMI (High-Definition Multimedia Interface)
Standard connector for transmitting uncompressed video and audio from a media player to a display.
HTML5
The latest version of HTML, widely used for creating interactive and animated digital signage content that runs in web browsers.
I
Impression
A single instance of content being displayed to a potential viewer. Used for measuring advertising reach.
Interactive Digital Signage
Displays that respond to user input via touch screens, gestures, mobile devices, or sensors.
K
Kiosk
A self-service terminal with an interactive display, typically used for wayfinding, check-in, or information lookup.
L
LED (Light-Emitting Diode)
Display technology using arrays of LEDs. Can refer to LED-backlit LCD displays or direct-view LED panels.
LCD (Liquid Crystal Display)
Display technology using liquid crystals and backlighting. The most common display type for indoor digital signage.
M
Media Player
The computing device that renders and displays digital signage content on a screen. Can be dedicated hardware, a PC, or integrated into the display (SoC).
Menu Board
Digital display showing menu items and prices, commonly used in restaurants and quick-service establishments.
N
Network Digital Signage
A digital signage system where multiple displays are connected and managed over a network from a central CMS.
Nit
Unit of luminance equal to one candela per square meter (cd/m²). Used to measure display brightness.
O
On-Premise (On-Prem)
Software or infrastructure installed and run on a company's own servers rather than in the cloud.
OOH (Out-of-Home)
Advertising that reaches consumers outside their homes, including billboards, transit ads, and digital signage.
P
Pixel Pitch
The distance between the center of adjacent pixels on an LED display, measured in millimeters. Smaller pitch = higher resolution.
Playlist
An ordered sequence of content items scheduled to play in a specific order.
PoP (Proof of Play)
Documentation verifying that specific content played at specific times on specific displays. Essential for advertising accountability.
Portrait Mode
Display orientation where the screen is taller than it is wide (9:16 aspect ratio).
Q
QSR (Quick Service Restaurant)
Fast-food or fast-casual restaurants, a major vertical market for digital menu boards.
R
Resolution
The number of pixels in a display, typically expressed as width × height (e.g., 1920×1080 for Full HD).
RSS (Really Simple Syndication)
A web feed format used to deliver regularly updated content like news headlines to digital signage.
S
SaaS (Software as a Service)
Cloud-based software delivery model where the application is hosted by the provider and accessed via the internet.
SMIL (Synchronized Multimedia Integration Language)
W3C standard XML-based language for describing multimedia presentations, used in digital signage for playlist definitions.
SoC (System-on-Chip)
A media player built into a commercial display, eliminating the need for an external player device. Examples: Samsung Tizen, LG webOS.
Stretch Display
A display with an ultra-wide aspect ratio (typically 16:4.5 or similar), used for shelf-edge signage and unique installations.
T
Touch Screen
A display that can detect and respond to touch input, enabling interactive digital signage applications.
Ticker
A scrolling text display, often used for news headlines or stock prices.
V
Video Wall
Multiple displays arranged in a grid to create a single large viewing area. Common configurations include 2×2, 3×3, and custom arrangements.
Video Wall Controller
Hardware or software that distributes content across multiple displays in a video wall configuration.
W
Wayfinding
Digital signage used to help people navigate through a space, showing maps, directions, and location information.
Widget
A small, self-contained content element that displays specific information (clock, weather, social feed, etc.) within a digital signage layout.
Z
Zone
A defined area within a digital signage layout where specific content plays. Multiple zones allow different content to appear simultaneously on screen.
Acronym Quick Reference
| Acronym | Full Term |
|---|---|
| API | Application Programming Interface |
| CEC | Consumer Electronics Control |
| CMS | Content Management System |
| CPM | Cost Per Mille (Thousand) |
| DOOH | Digital Out-of-Home |
| DSP | Demand-Side Platform |
| FHD | Full High Definition (1080p) |
| GPU | Graphics Processing Unit |
| HDCP | High-bandwidth Digital Content Protection |
| HDMI | High-Definition Multimedia Interface |
| HDR | High Dynamic Range |
| IP | Ingress Protection / Internet Protocol |
| IPS | In-Plane Switching |
| KPI | Key Performance Indicator |
| LCD | Liquid Crystal Display |
| LED | Light Emitting Diode |
| NFC | Near Field Communication |
| NOC | Network Operations Center |
| NTP | Network Time Protocol |
| OLED | Organic Light-Emitting Diode |
| OOH | Out-of-Home |
| OPS | Open Pluggable Specification |
| OTA | Over-the-Air |
| PoE | Power over Ethernet |
| POS | Point of Sale |
| PoP | Proof of Play |
| QHD | Quad High Definition |
| QSR | Quick Service Restaurant |
| RFID | Radio-Frequency Identification |
| ROI | Return on Investment |
| RTSP | Real-Time Streaming Protocol |
| SaaS | Software as a Service |
| SDK | Software Development Kit |
| SMIL | Synchronized Multimedia Integration Language |
| SoC | System on Chip |
| SSP | Supply-Side Platform |
| UHD | Ultra High Definition (4K) |
| VESA | Video Electronics Standards Association |
Frequently Asked Questions
This glossary is continuously updated. Last revision: February 2026.