Patent ID: 7348950
Filing Date: 2008-03-25
Classification: G09G

Abstract:
1. In a liquid crystal display (LCD) panel having a number of LCD pixels, a method for providing a LCD pixel response time corresponding to a period of time required for a selected LCD pixel at a starting pixel value to reach a target pixel value associated with an overdrive pixel value, comprising: modeling response of each of the LCD pixels as a second order dynamical system represented as a second order differential equation (m{umlaut over (x)}+kv+x=p) wherein x, v and p represent an LCD pixel value, an associated change in pixel value with respect to time, and an applied LCD pixel voltage, respectively, and wherein m and k represent an LCD pixel mass and associated pixel damping factor, respectively; calculating LCD pixel response data of the selected pixel under the influence of the applied voltage p based upon the second order differential equation m{umlaut over (x)}+kv+x=p when the selected LCD pixel has an initial LCD pixel value of x determining a best fit (m, k) pair values, wherein the best fit (m,k) values are those values of m and k that result in a calculated LCD pixel response that most-nearly matches a measured LCD pixel response for the LCD panel; and calculating α wherein α 1 and α 2 are roots of the second order differential equation m{umlaut over (x)}+kv+x=p.