Patent ID: 8941563
Filing Date: 2015-01-27
Classification: G09G

Abstract:
1. A high dynamic range display device comprising: a first light-source having a first modulator to generate primary modulated light rays; a second light-source having a second modulator operable independently of the first light-source and the first modulator to generate secondary modulated light rays; and one or more optical components disposed between the first light-source and the first modulator and the second light-source and the second modulator for focusing the primary modulated light rays onto the second light-source and the second modulator, the second light-source and the second modulator being transparent and being disposed relative to the first light-source such that the primary modulated light rays generated by the first light-source are focused on and are transmittable through the second light-source and the second modulator whereby a composite light-output comprising both primary and secondary modulated light rays is generated, the composite light-output having a greater luminance dynamic range than either the primary modulated light rays or the secondary modulated light rays.