Patent ID: 7029124
Filing Date: 2006-04-18
Classification: G02F

Abstract:
1. A tiled display apparatus with distortion control, comprising: a plurality of display devices, wherein each display device is subdivided into a plurality of sections, and the plurality of sections for each display device are capable of displaying a plurality of sectional images in response to display control signals applied to that display device, each display device including a dead-band region between each pair of adjacent sections; a screen; a plurality of lens assemblies optically coupled to the plurality of display devices for projecting the sectional images of the display devices to form a tiled image on the screen, at least one lens assembly being configured to provide magnification having a magnitude of greater than 1 such that the respective projected sectional image on the screen is larger than the corresponding sectional image on the display device, wherein the lens assemblies provide magnification to merge adjacent projected sectional images together to eliminate the dead-band regions from the tiled image; a detector that detects the tiled image and generates feedback signals, wherein the detector moves relative to an element displayed on the screen; and a display controller, coupled to the display devices and the detector, that generates the display control signals to display a commanded image on the screen, receives the feedback signals from the detector, and uses the feedback signals to reduce distortion on the screen.