Patent ID: 9165521
Filing Date: 2015-10-20
Classification: G09G

Abstract:
1. A liquid crystal display device comprising: a pixel portion including a plurality of pixels arranged in m rows and n columns; a driver circuit configured to input a first image signal for controlling transmission of light of one of a first color and a third color to n pixels arranged in a first row to n pixels arranged in an A-th row (A is a natural number less than or equal to m/2), and a second image signal for controlling transmission of light of one of a second color and a fourth color to n pixels arranged in a (A+1)-th row to n pixels arranged in a 2A-th row; a backlight provided behind the pixel portion, the backlight comprising a plurality of backlight units arranged in a matrix, wherein each of the backlight units comprises a plurality of light sources emitting lights, and the light sources emit light of respective colors; and a backlight control circuit configured to irradiate the n pixels arranged in the first row to n pixels arranged in a B-th row (B is a natural number less than or equal to A/2) with the light of the one of the first color and the third color, and irradiate the n pixels arranged in the (A+1)-th row to n pixels arranged in a (A+B)-th row with the light of the one of the second color and the fourth color among the plurality of backlight units in a period that the driver circuit inputs the first image signal to n pixels arranged in a (B+1)-th row to the n pixels arranged in the A-th row, and the second image signal to n pixels arranged in a (A+B+1)-th row to the n pixels arranged in the 2A-th row, and configured to irradiate the n pixels arranged in the (B+1)-th row to the n pixels arranged in the A-th row with the light of the one of the first color and the third color, and irradiate the n pixels arranged in the (A+B+1)-th row to the n pixels arranged in the 2A-th row with the light of the one of the second color and the fourth color among the plurality of backlight units after the period, wherein, to display a first image, each of the light of the first color and the second color is formed by turning on any one of the light sources, wherein, to display a second image after displaying the first image, each of the light of the third color and the fourth color is formed by turning on at least two of the light sources, wherein the driver circuit is configured to input the first image signal and the second image signal, concurrently, and wherein a part of an irradiating period of the n pixels arranged in the first row to the n pixels arranged in the B-th row with the light of the one of the first color and the third color and the n pixels arranged in the (A+1)-th row to the n pixels arranged in the (A+B)-th row with the light of the one of the second color and the fourth color and a part of an irradiating period of the n pixels arranged in the (B+1)-th row to the n pixels arranged in the A-th row with the light of the one of the first color and the third color and the n pixels arranged in the (A+B+1)-th row to the n pixels arranged in the 2A-th row with the light of the one of the second color and the fourth color overlap with each other.