Patent ID: 6141092
Filing Date: 2000-10-31
Classification: A61B,G01J

Abstract:
A method for measuring a flicker level, comprising the steps of:apply a voltage to a liquid crystal display (LCD) panel such that light passing through liquid crystal material provided in the LCD panel is emitted from the LCD panel, the LCD panel varying in transmissivity of light according to the voltage applied to the LCD panel;detecting a brightness L of the light emitted from the LCD panel;determining a maximum brightness value Lmax and a minimum brightness value Lmin; andintroducing the maximum brightness value Lmax and the minimum brightness value Lmin into a retina responsiveness function according to the brightness L to attain a flicker level value of R(Lmax)-R(Lmin),wherein the retina responsiveness function is a function of a strength of light passing through a pupil of human eyes.