Patent ID: 6151011
Filing Date: 2000-11-21
Classification: G09G

Abstract:
A display driver circuit for writing a compound data word to a pixel of a display, said compound data word comprising a group of equally weighted data bits and a group of binary weighted data bits, said compound data word having a value at least partially defined by said group of equally weighted data bits and said group of binary weighted data bits said display driver circuit comprising:a compound data generator, configured to receive a binary-weighted data word, to convert at least one bit of said binary weighted data word to said group of equally weighted data bits, to include at least one other bit of said binary weighted data word in said group of binary weighted data bits, and to provide said compound data word at an output; andan output controller configured to provide display control signals at an output; andwhereby, responsive to said display control signals said display asserts each bit of said group of equally-weighted data bits on said pixel for a coequal time period, and asserts each bit of said group of binary-weighted data bits on said pixel for a time period dependent on an associated significance of each said binary-weighted bit; such that an output of said pixel corresponds to said value of said compound data word.