Display apparatus with digital output palette

A digital display data processing apparatus comprising:

• a display screen for producing a pixel of an image in response to a pixel word;
• a timing receiver for receiving a pixel clock signal from an external video source;
• shift clock generator logic for multiplying the pixel clock signal by the number of bits in the pixel word to produce a shift clock signal;
• and
• deserialiser logic for receiving an input video bit stream at the shift clock signal rate to generate the pixel word.

A computer system comprising.

• a processor;
• a memory;
• and
• a display system including a digital video source coupled to a digital display device through a digital interface having a timing channel for carrying a pixel clock signal from the digital video source to the digital display device, and a digital video channel for carrying a digital video bit stream from the digital video source to the digital display device, wherein the digital video source includes a pixel clock generator for generating the pixel clock signal, palette logic for outputting a pixel word on each pulse of the pixel clock signal, first shift clock logic for multiplying the pixel clock signal by the number of bits in the pixel word to produce a shift clock signal, and serialiser logic for serially outputting the pixel word in the digital video bit stream at the shift clock signal rate, and wherein the digital display device includes a display screen for producing a pixel of an image in response to the pixel word, second shift clock logic for multiplying the pixel clock signal by the number of bits in the pixel word, and deserialiser logic for receiving the serially outputted pixel word in the digital video bit stream from the serialiser logic at the shift clock signal rate to re-generate the pixel word from the digital video bit stream.