Managing Screen Resolution

This topic describes the standard application screen resolutions, and how to implement your application to fit Samsung TV screens.

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Related Info

• Screen API
• SystemInfo API
• AVPlay API

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The standard application screen resolution depends on the Samsung TV model group.

Product	Standard Resolution (px)	Aspect Ratio
Samsung UHD TV	1920x1080	16:9
Samsung FHD TV	1280x720	16:9

Table 1. Samsung TV standard resolutions

When the application screen resolution is larger than the standard resolution, it is automatically resized to fit the screen. For example, an application that is created for a 1920x1080 px screen fills a Samsung UHD TV screen, and is resized to fit the smaller Samsung FHD TV screen.

If the aspect ratio of the application is not 16:9, the application screen is scaled by reducing the horizontal dimension to 1920 px. This can cause whitespace or scroll bars to appear around your application.

Defining a Viewport Resolution

If your application does not follow the standard resolutions, you must define a viewport resolution to fit the application to a TV screen. Define the viewport resolution using the meta viewport element in the "index.html" file header.

For example, if your application resolution is 1600x900 px, set the viewport width to 1600 px. This makes the TV treat its screen width as 1600 px.

<meta name='viewport' content='width=1600, user-scalable=no'>

Retrieving Screen Resolution Information

You can retrieve the screen resolution of a Samsung TV in 2 ways:

• Using the Web standard Screen API:

  console.log(screen.height);
  console.log(screen.width);
  

• Using the Tizen SystemInfo API:

  tizen.systeminfo.getPropertyValue('DISPLAY', function(result) {
    console.log(result.resolutionWidth);
    console.log(result.resolutionHeight);
  });