Abstract
On the basis of an 60 inch all solid laser television (TV) prototype, a chrominance signal conversion model from an original TV to a laser TV was established. By researching the characteristics of laser display, the conversion matrix between traditional phosphor TV color system and laser TV color system was derived by using a three color laser (red: 660 nm, green: 532 nm, blue: 457 nm) as primary-color. A gamut conversion circuit between the two color systems was given by utilizing a decode module, a Field Programming Gate Array (FPGA) controlling circuit and a coding module. The roles of these models and their working processing were analyzed, and the gamut conversion to the high-definition video signal was achieved. 11 feature colors displayed with the laser TV and the traditional phosphor TV respectively were measured and compared after conversion and the gamut conversion error is less than 9.8%. The experiment obtains an excellent result of gamut conversion and verifies the color-recurrent ability of high-definition laser TVs.
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