Patent ID: 7696968

Claim:
A method of gamma correction for a liquid crystal display (LCD) with color-sequential display, wherein the LCD comprises an LCD panel having a plurality of gate lines, a plurality of data lines, and a plurality of pixels spatially arranged in a matrix, each pixel being defined between two neighboring gate lines and two neighboring data lines crossing the two neighboring gate lines, and being capable of displaying n bits of image data, comprising the steps of: a. dividing the LCD panel along a gate scanning direction into N areas, {A j }, j=1, 2, 3, . . . , N, N being an integer greater than one, wherein each area A j is characterized with a corresponding light transmittance, T j , which is a function of a voltage V j applied to the area A j , T j =F j (V j ); b. selecting a desired gamma curve; and c. determining grey level voltages, V j0 , V j1 , . . . , V jL , . . . of each area A j for each of a set of grey levels, {L}, L=0, 1, 2, . . . , (2 n −1), from the corresponding function T j =F j (V j ) and the desired gamma curve such that when the grey level voltages V 1L , V 2L , . . . , and V NL are respectively applied to the N areas {A j } for a grey level, L, a light transmittance through each area A j is substantially uniform and equal to a corresponding brightness, B L .