Patent ID: 8334883
Filing Date: 2012-12-18
Classification: G09G

Abstract:
1. A display apparatus comprising: an interface for accessing an image, wherein the image contains multispectral data; a reflective display driven by color primary signals for corresponding color primaries of the reflective display, wherein the reflective display renders the image by modulation of an ambient illuminant; a storage device which stores a spectral device model for the reflective display; a spectral power distribution measuring device to determine a spectral power distribution of a direct irradiance of a current ambient illuminant incident on the reflective display; and a controller to cyclically and repetitively estimate the spectral power distribution of the direct irradiance of the current ambient illuminant by using an output of the spectral power distribution measuring device, and to determine color primary signals for driving the reflective display by using all of the estimation of the spectral power distribution of the direct irradiance of the current ambient illuminant, the spectral device model, and the multispectral image data, such that the multispectral image data rendered on the reflective display simulates the appearance of the multispectral image data calorimetrically under the current ambient illuminant.