Importance

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Abstract

Display and optical pointer systems and related methods are disclosed that utilize LEDs in a display device to respond to optical signals from optical pointing devices. In part, the disclosed embodiments relate to displays with arrays of LEDs and associated pointing devices that communicate with individual LEDs in the arrays using visible light. The LED arrays can produce images directly as in LED billboards and sports arena scoreboards or can produce the backlight for LCD screens for instance. The pointing devices communicate with individual pixels or groups of pixels using a beam of light that may or may not be modulated with data, which is detected by the LEDs in the array that are exposed to the beam. Periodically, the LEDs in an array stop producing light and are configured with an associated driver device to detect light from the pointing device. Such configurations enable the user to point and click at on screen displays much like a computer mouse.

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First Claim