Patent ID: 8493420

Claim:
A driving method of a liquid crystal sub-pixel, wherein a transmittance of the liquid crystal sub-pixel is T 0 when applying a bias voltage V 0 to the liquid crystal sub-pixel, a transmittance variation of the liquid crystal sub-pixel is So when the bias voltage V 0 is changed by a variation of liquid crystal voltage ΔV LC , and the driving method comprises: dividing the liquid crystal sub-pixel into display regions in a number of n, n>2, and applying bias voltages V k respectively to the n display regions and 1<k<n, wherein at least one of the bias voltages V k is greater than the bias voltage V 0 , and at least another one of the bias voltages V k is smaller than the bias voltage V 0 , such that a transmittance of the liquid crystal sub-pixel divided into the n display regions is T sub-pixel satisfying equation (1) and equation (2); wherein the equation (1) is: T 0 = T sub ⁢ - ⁢ pixel = ∑ k = 1 n ⁢ a k × T k ⁡ ( V k ) ∑ k = 1 n ⁢ a k , ( 1 ) and wherein the equation (2) is: S sub ⁢ - ⁢ pixel = ∑ k = 1 n ⁢ a k × S k ⁡ ( V k ) ∑ k = 1 n ⁢ a k < S 0 , ( 2 ) wherein a transmittance of each of the display regions is T k (V k ), an area of each of the display regions is a k , a transmittance variation in each of the display regions is S k (V k ), when the bias voltage V k in each of the display regions is changed by the variation of liquid crystal voltage ΔV LC , and a transmittance variation of the liquid crystal sub-pixel with n display regions is S sub-pixel .