Patent ID: 9277209
Filing Date: 2016-03-01
CPC Classification: G09G,H04N

Claim Text:
1. A pattern position detection method for capturing patterns displayed on a display panel with a camera and detecting positions of images of the patterns on an imaging surface of the camera, the method comprising: a primary-color pattern imaging condition storing step of storing a first focus, a first shutter speed, and a first f-number for imaging primary-color patterns; a primary-color pattern capturing step of displaying primary-color patterns of one of primary colors red, green and blue at predetermined positions on the display panel and capturing the primary-color patterns with the camera using the first focus, the first shutter speed, and the first f-number stored by the primary-color pattern imaging condition storing step; a black image capturing step of displaying a black image on the display panel and capturing the black image with the camera using the first focus, the first shutter speed, and the first f-number stored by the primary-color pattern imaging condition storing step; and a primary-color pattern position detecting step of detecting positions of images of the primary-color patterns on the imaging surface based on a difference between an image captured in the primary-color pattern capturing step and an image captured in the black image capturing step, wherein the primary-color pattern is a pattern of plurality of dots arranged in a matrix form, different from pixel patterns of the display panel.