Patent ID: 8118633
Filing Date: 2012-02-21
Classification: C09K,G09G,H01L

Abstract:
1. A method of producing an organic electroluminescence type two-dimensional color image display panel having multiple pixels arrayed and each formed by arranging organic EL devices each having at least red, green, and blue luminescent colors in a certain order in a horizontal direction (h) as a group of sub-pixels, each of the organic EL devices having a first electrode, a second electrode, and an organic light emitting layer provided between the first electrode and the second electrode, and a value for a ratio k/r of a deviation amount k in the horizontal direction between a position of a center of gravity of any one of the sub-pixels and a position of a center of gravity of a sub-pixel adjacent to the sub-pixel in a vertical direction and having the same luminescent color to a repetition pitch r of sub-pixels adjacent to each other in the horizontal direction and having the same luminescent color is one of 1/2 and 1/3, comprising: forming multiple first electrodes two-dimensionally arrayed on a substrate; depositing an organic light emitting material having at least red, green, and blue luminescent colors at positions where the multiple first electrodes are formed through multiple through-holes of a mask having the multiple through-holes for each luminescent color; and forming a second electrode, wherein: in the formation of the multiple first electrodes, the multiple first electrodes each having a planar shape with a pair of two parallel sides and being spaced apart from each other in every adjacent organic EL device and are one-dimensionally arrayed so that a first side of the two parallel sides of each electrode is aligned with a straight line, and a second side of the two parallel sides of the electrode is also aligned with a straight line, and the multiple first electrodes are two-dimensionally arrayed so that one-dimensional arrays of the multiple first electrodes are in a shape of stripes arranged parallel to each other while being slanted with respect to a vertical line; and in the deposition of the organic light emitting materials, the mask in which the multiple through-holes are formed into a shape of stripes to correspond to stripes obtained by forming the multiple first electrodes is aligned so that the stripes obtained by forming the multiple first electrodes and the multiple through-holes of the mask are opposed to each other before the organic light emitting materials are deposited by vacuum depositing.