Tuesday, November 15, 2016

What is WebOS Signage ?

Discover webOS Signage

webOS Signage is a web-centric platform that powers the LG Digital Signage. It is developer-friendly and provides powerful features for you to leverage for creating feature in rich web apps. Best of all, webOS Signage is compatible with the programming languages and technologies you are already familiar with, like HTML, JavaScript, CSS, and more, so you can choose the way you want to develop.
Let’s start by getting to know the merits of webOS Signage.



webOS Signage is a web-based platform and provides execution environment for web apps. The platform supports cross browser which means that you can build web-based apps in HTML5, CSS, and JavaScript while saving time and labor costs.
These "one-source multi-use" HTML5-based apps can run on any platform or device, and  you can access your content directly from any device with an Internet connection.


webOS Signage improves your experience through intuitive Launcher. The Launcher provides convenient and user-friendly experience to make apps executed simply and easily. Also, webOS OSD (On Screen Display) is designed more freshly and simply compared to existing Signage products.
The following figure shows the Launcher loaded on webOS Signage. You can navigate apps and enter into settings easily from the Launcher screen.
Launcher loaded on webOS Signage
① SettingsLaunches the Settings menus.
② Input ListShows all available inputs in Launcher.
③ Recent CardDisplays recents tile for most recently used app.
④ InformationDisplays overall status of the Signage for you to check at a glance.
⑤ File ManagerMoves, copies, or deletes files from internal to external memory.
⑥ My MediaBrowses and plays files stored in a USB storage device.
⑦ SuperSign ContentsPlays back the stored files using the Export option in SuperSign Manager.
To get information on SuperSign, click supersign_logo.png.
⑧ InputsShows input modes in each tile.


webOS Signage eliminates the need for an external media player and simplifies installation and maintenance. Without external media player, running contents such as menu board or advertisements by only using SoC and webOS function reduces TCO (Total Cost of Ownership). Installation and maintenance become simple as well because only power and LAN connection are required.


webOS Signage allows various app deploying scenarios. Developers can choose the appropriate scenario according to their own situation.
  • Local Storage Deploying Scenario: Launches a web app from local storage. You should deploy the app with web server or USB storage.
  • USB storage Deploying Scenario: Runs a web app directly from USB storage attached to your computer.
  • Remote Server Deploying Scenario: Runs a web app from remote server.
For detailed description, see Deploying Your App.


You can use our SDK and get technically supported fully from LG Signage Support team when developing apps on webOS Signage. Our developer website provides webOS Signage SDK download, technical documents, forums to make customers develop their apps in more convenient environment.
The SDK includes SCAP library and documents that can be used to develop your apps for webOS Signage.
Only contracted partner developers with DA (Development Agreement) can download SDK, read technical documents, and use partner forums in this developer site.


webOS Signage is based on webOS that is specialized for signage display. You can develop web apps using the SCAP library along with a web app framework such as jQuery. SCAP library allows your web app to control the device or get information from the webOS Signage resources. The following diagram illustrates webOS Signage architecture.
The key components of webOS Signage are described below:
Web ApplicationA web application for commercial display that is developed with HTML, CSS, JavaScript, JavaScript Library (e.g. jQuery), UI Framework (e.g. Bootstrap), and SCAP library.
SCAP LibrarySCAP (Signage Common Application Platform) library provides functions that manage device settings and hardware resources, and web application. For more information, see Using SCAP Library.
webOS Signage System ResourcesA set of resources that is specified for running webOS Digital Signage device.

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