Patent ID: 9728148
Date: 2017-08-08
CPC Classifications: G09G

Claim:
1. A color-field sequential liquid crystal display apparatus that divides one frame period into a plurality of fields and displays different colors in different fields to perform color display, the liquid crystal display apparatus comprising: a liquid crystal panel on which an image is displayed; a backlight that irradiates the liquid crystal panel with light; an input image data separation unit that separates input image data into input gradation data for every field; a data compensation unit that determines applied gradation data, which corresponds to voltage to be applied to the liquid crystal panel, by compensating the input image data while acquiring liquid crystal state data, which corresponds to expected attained gradation at the end of each field; a liquid crystal panel driving unit that drives the liquid crystal panel on the basis of the applied gradation data; and a backlight driving unit that drives the backlight so that the liquid crystal panel is irradiated with light of different colors in different fields, wherein the data compensation unit includes wherein the applied gradation data determiner determines the applied gradation data so that a display luminance in each field is a display luminance corresponding to the input gradation data resulting from the separation by the input image data separation unit, and wherein a provision of the liquid-crystal state data acquirer and the applied gradation data determiner for every field composing one frame period allows the applied gradation data about an arbitrary displayed field to be determined by acquiring the liquid crystal state data about a first previous field of the displayed field on the basis of the input gradation data about the first previous field of the displayed field and the liquid crystal state data about a second previous field of the displayed field and compensating the input gradation data about the displayed field on the basis of the acquired liquid crystal state data.