Patent ID: 9030509
Filing Date: 2015-05-12
Classification: G06F,G09G

Abstract:
1. A display device comprising: a display panel having a display area on which a plurality of pixels each including a plurality of sub-pixels whose colors are different from each other are arranged in a matrix manner; and a plurality of position information patterns arranged on the display area and each representing information regarding a position thereof on the display area, wherein each position information pattern is formed of a plurality of optically readable marks that are formed from a material that transmits visible light, on the display area, the plurality of sub-pixels whose colors are different from each other are repeatedly aligned in a determined alignment direction, and a length L between both ends of the mark in the alignment direction meets a relational expression of n×P+w≦L≦(n+1)×P−w (n is an integer of 0 or greater) where a width of the sub-pixel in the alignment direction is w and a pitch between the pixels in the alignment direction is P.