| US 7,602,370 B2 | ||
| Liquid crystal display device | ||
| Tsunenori Yamamoto, Tokyo (Japan); Daisuke Kajita, Tokyo (Japan); and Ikuo Hiyama, Tokyo (Japan) | ||
| Assigned to Hitachi Displays, Ltd., Chiba (Japan) | ||
| Filed on Nov. 09, 2004, as Appl. No. 10/984,072. | ||
| Claims priority of application No. 2004-016209 (JP), filed on Jan. 23, 2004. | ||
| Prior Publication US 2005/0162584 A1, Jul. 28, 2005 | ||
| Int. Cl. G09G 3/36 (2006.01) | ||
| U.S. Cl. 345—102 [345/88] | 9 Claims |
| 1. A liquid crystal display device comprising:
a liquid crystal display unit for displaying an image;
light sources of three original colors of red, green, and blue independently;
a backlight unit controllable for each color that radiates light at said liquid crystal display unit;
a display controller for controlling a display of the liquid crystal display unit; and
an emission control circuit for controlling an emission of at least one color of the backlight unit,
wherein said emission control circuit divides an emission period of at least one color of the backlight unit in a sequential
emission period within a one-frame period into a plurality of sub-emission periods, and performs control so that emission
start timing and emission end timing in the sequential emission period within the one-frame period of the at least one color
match in three original colors and so that an emission center of the at least one sub-mission period in the sequential emission
period within the one-frame period of the at least one color matches in the three original colors,
wherein an emission length of one color emitting light differs from an emission length of another color emitting light within
the one sub-emission period in the one frame.
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