Patent ID: 6816171
Filing Date: 2004-11-09
Classification: G09G

Abstract:
A device for automatically controlling images represented by video signals of a flat panel display in accordance with synchronizing signals, said device comprising:a micro-controller to discriminate modes according to the synchronizing signals, and to output an OSD (on screen display) control signal and pixel clock control signals according to the discriminated modes; a phase-locked loop to control timing of pixel clocks according to the pixel clock control signals of said micro-controller; an analog to digital converter to receive the video signals, to sample the video signals according to one of the pixel clocks from said phase-locked loop, and to convert the sampled video signals into digital video signals; and a video controller to receive the digital video signals transmitted from said analog-digital converter, to output the digital video signals according to the pixel clocks from the phase-locked loop and the OSD control signal from the micro-controller; and a panel driver to transfer the digital video received from the video controller to the flat panel display.