Patent ID: 7605791

Claim:
A liquid crystal display (LCD), comprising: a feed-forward circuit for comparing first digital data and second digital data, for generating a correction value based on the comparison, for applying the correction value to the second digital data to obtain corrected digital data, and for outputting the corrected digital data; and a liquid crystal display panel for receiving the corrected digital data, and for displaying an image corresponding to the corrected digital data; wherein the feed-forward circuit comprises: a first feed-forward path for comparing a number of bits represented as one among the first digital data and a number of bits represented as one among the second digital data, and for generating the correction value; a second feed-forward path for providing the second digital data; and a mixer for generating the corrected digital data by using the correction value of the first feed-forward path and the second digital data of the second feed-forward path; and wherein the first feed-forward path comprises: an ON-counter for counting the number of bits represented as one among the first digital data and the number of bits represented as one among the second digital data; a memory for storing the number of bits represented as one among the first digital data and the number of bits represented as one among the second digital data; an operator for receiving the number of bits represented as one among the first digital data and the number of bits represented as one among the second digital data which are stored in the memory, and for generating compensation data by means of operation; and a level regulator for receiving the compensation data, for applying a correction coefficient, and for generating the correction value.