| US 7,602,959 B2 | ||
| Visual inspection apparatus and method of inspecting display panel using the visual inspection apparatus | ||
| In-Cheol Song, Chungcheongnam-do (Korea, Republic of); Il-Ho Lee, Chungcheongnam-do (Korea, Republic of); Min-Young Won, Gyeonggi-do (Korea, Republic of); and Chan-Hyang Lim, Gyeonggi-do (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co, Ltd., Suwon-Si (Korea, Republic of) | ||
| Filed on Mar. 03, 2006, as Appl. No. 11/367,138. | ||
| Claims priority of application No. 10-2005-0024115 (KR), filed on Mar. 23, 2005. | ||
| Prior Publication US 2006/0215898 A1, Sep. 28, 2006 | ||
| Int. Cl. G06K 9/00 (2006.01) | ||
| U.S. Cl. 382—141 [382/148; 382/151] | 9 Claims |
| 8. A method of inspecting a display panel, the method comprising:
mounting a display panel on a panel mounting unit of a work table;
displaying one of a white image, a black image, a specific color image, and a middle gray-scale image on the display panel;
photographing the display panel with a plurality of cameras arranged in a matrix while changing distances between the cameras;
and
checking for existence of a defect in the display panel from an image of the display panel photographed with the cameras,
with the use of a processor wherein the photographing of the display panel with the cameras includes vibrating the work table.
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