Patent ID: 8884840

Claim:
A multi-display system comprising a multi-display screen formed by arranging a plurality of image display devices each having a display panel capable of displaying image information to lie side-by-side, the multi-display system comprising: a test pattern display controller that causes a plurality of predetermined display colors to be sequentially displayed in a predetermined display region on a periphery of each of the display panels; a transmitting unit that constitutes a plurality of transmission channels which are optical fibers each capable of transmitting an emitted light from the display region of each of the display panels; a spectral characteristics detector that detects spectral characteristics of the emitted light transmitted by each of the optical fibers; and an adjustment unit that adjusts, based on the spectral characteristics detected by the spectral characteristics detector, luminance and chromaticity of the image display device having the display panel that has outputted the emitted light having the spectral characteristics so that a difference from luminance and chromaticity of adjacent image display devices decreases, wherein the transmitting unit includes: a coupler that connects a plurality of first optical fibers provided in the display region of each of the display panels with a single second optical fiber connected to a single spectral characteristics detector for the plurality of image display devices so that the emitted light can be transmitted; switches that are attached to the respective first optical fibers and configured to be selectable between a transmission state where transmission of the emitted light in the respective first optical fibers allowed and a cut-off state where transmission of the emitted light in the first optical fibers is cut; and a switching controller that controls the respective switches so that the respective first optical fibers sequentially enter the transmission state in a predetermined order.