| US 7,522,172 B2 | ||
| Display device | ||
| Susumu Tanase, Kadoma (Japan); Atsuhiro Yamashita, Osaka (Japan); Yukio Mori, Hirakata (Japan); Haruhiko Murata, Ibaraki (Japan); Koji Marumo, Gifu (Japan); and Kazunobu Mameno, Kyoto (Japan) | ||
| Assigned to Sanyo Electric Co., Ltd., Moriguchi, Osaka (Japan) | ||
| Filed on May 24, 2006, as Appl. No. 11/439,207. | ||
| Claims priority of application No. 2005-152058 (JP), filed on May 25, 2005. | ||
| Prior Publication US 2006/0268003 A1, Nov. 30, 2006 | ||
| Int. Cl. G06T 15/00 (2006.01) | ||
| U.S. Cl. 345—603 [345/600; 345/694; 348/222.1; 347/13; 347/19; 347/42] | 18 Claims |
| 1. A display device comprising:
an RGB-RGBX conversion circuit that converts RGB signals fed thereto into RGBX signals, where X represents a predetermined
color other than R, G, and B;
a display panel that displays an image based on the RGBX signals obtained from the RGB-RGBX conversion circuit, the display
panel being composed of a plurality of dots each composed of four unit pixels that are an R pixel, a G pixel, a B pixel, and
an X pixel;
a defect position specifier that specifies, if a unit pixel is found defective, a position of the defective pixel on the display
panel;
the RGB-RGBX conversion circuit having a conversion rate controller that controls a conversion rate at which, when the RGB
signals are converted into the RGBX signals, the RGB signals are converted into an X signal according to the position specified
by the defect position specifier;
the conversion rate controller makes the conversion rate for at least one unit pixel adjacent to the defective pixel different
from a standard conversion rate set for the entire display panel.
|