| 摘要 |
Provided are a display device, and more particularly, a display device shared between a digital-to-analog converter for outputting a convergence signal and a digital-to-analog converter for outputting a dynamic focus signal, in a projection television using 3 cathode-ray tube projection optics. The display device includes a convergence and dynamic focus corrector and operation processor which corrects a convergence to adjust red and blue color images to a green color image using horizontal and vertical sync signals and controls a focus to converge focuses of portions of an image displayed on central and peripheral portions of a screen using the horizontal and vertical sync signals; a first digital-to-analog converter which converts corrected horizontal red, green, and blue signals and a dynamic focus control signal sequentially output from the convergence and dynamic focus corrector and operation processor into analog signals; a second digital-to-analog converter which converts corrected vertical red, green, and blue signals sequentially output from the convergence and dynamic focus corrector and operation processor into analog signals; and a multiplexer which selectively switches and outputs the analog signals output from the first and second digital-to-analog converters in response to a selection control signal output from the convergence and dynamic focus corrector and operation processor.
|
