Ambilight

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Television with Ambilight Spectra light effects

Ambilight, which is short for Ambient Lighting Technology, is a feature invented by Philips Electronics, generating light effects around the TV that correspond to the video content. The effect, the company claims, is a larger virtual screen and a more immersive viewing experience. In addition, Philips claims that it reduces viewer eye strain. Ambilight also reduces the visibility of a typical LCD problem: backlight bleed.

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[edit] Versions

Ambilight is marketed in several versions, mostly depending on the number of independent light channels, anywhere from one to four or more.

The Ambilight Spectra name refers to a frame surrounding the display panel that lights up in colors matching the edges of the displayed image, in addition to illuminating the wall behind the television screen.

AmBX is a version of Ambilight designed for PC gaming. Similarly, light effects occur resulting from in-game events and actions.

[edit] Patents

The concept of adapting ambient light with a video display already existed, but proposed solutions required a separate channel for the light effects in addition to the video and audio channels. Ambilight uses the video channel itself to generate color and the concepts as well as various methods of calculating the color from the video signal are protected by patents.[1][2]

[edit] References

  1. ^ Method and system for controlling an ambient light and lighting unit. International patent application WO 2004006570 (2004).
  2. ^ Ambient lighting derived from video content and with broadcast influenced by perceptual rules and user preferences International patent application WO 2006003624 (2006). There are several other patents as well, although it is not clear which ones actually cover the Ambilight systems that are being sold.

[edit] External links