Patent ID: 7626593

Claim:
An apparatus for transmitting an image data within a display device, comprising: a data converter converting an N-bit data, wherein N is a positive integer, into an (N−1)-bit data and concurrently generating a restoring signal; and a data restorer restoring the (N−1)-bit data to the N-bit data in accordance with a value of the restoring signal, wherein if the N-bit data has a gray level value less than half of a highest N-bit gray level value, the data converter converts the N-bit data into a first (N−1)-bit data and generates the restoring signal having a first logic level, wherein the first (N−1)-bit data is (N−1) bits excluding a most significant bit from the N-bit data, wherein if the N-bit data has a gray level value more than half of the highest N-bit gray level value, the data converter converts the N-bit data into a second (N−1)-bit data and generates the restoring signal having a second logic level, wherein the second (N−1)-bit data is inverted from (N−1) bits excluding the most significant bit from the N-bit data, wherein the data converter includes a look-up table or a memory unit for mapping the N-bit data into the (N−1)-bit data, and wherein the data restorer includes a look-up table and a memory unit for mapping the (N−1)-bit data into the N-bit data to restore the N-bit data.