Patent ID: 7202845

Claim:
A liquid crystal display (LCD) device comprising: a decoder receiving an N-bit input gradation signal, said decoder converting said N-bit input gradation signal into a plurality of M-bit gradation signals; and a LCD having a plurality of pixels, said pixels having a plurality of sub-pixels, said LCD receiving said M-bit gradation signals, wherein a gradation and a brightness in each of said sub-pixels have a non-linear relation to each other, and a desired brightness for said pixel is selected by selecting a gradation in each of said sub-pixels, wherein N is greater than M, where N and M are positive integers, said device further comprising a memory storing therein a relation between a gradation and a brightness in each of said sub-pixels, wherein said relation in each of said sub-pixels is expressed as a table, and said memory stores said table therein, and said LCD displays said M-bit gradation signals without using Frame Rate Control (FRC).