Patent ID: 8350471
Filing Date: 2013-01-08
Classification: G02B,H01L

Abstract:
1. An EL display panel comprising: an EL substrate having pixels arranged in a matrix, the pixels each including a first light-emitting unit that emits red light, a second light-emitting unit that emits green light, and a third light-emitting unit that emits blue light; a color filter base facing a light-emitting side of the EL substrate; color filter banks disposed on a surface of the color filter base facing the EL substrate, the color filter banks partitioning the surface of the color filter base into portions respectively corresponding to the pixels of the EL substrate and further partitioning each of the portions of the color filter base into a first area, a second area, and a third area that respectively correspond to the first light-emitting unit, the second light-emitting unit, and the third light-emitting unit; a first color filter layer having a concave shape and defined by (i) top surfaces of a pair of color filter banks defining the first area, (ii) opposing lateral surfaces of the pair of color filter banks defining the first area, and (iii) the first area, the first color filter layer transmitting red light; a second color filter layer having a concave shape and defined by (i) top surfaces of a pair of color filter banks defining the second area, (ii) opposing lateral surfaces of the pair of color filter banks defining the second area, and (iii) the second area, the second color filter layer transmitting green light; a third color filter layer having a concave shape and defined by (i) top surfaces of a pair of color filter banks defining the third area, (ii) opposing lateral surfaces of the pair of color filter banks defining the third area, and (iii) the third area, the third color filter layer transmitting blue light; and a resin layer filling space between each of the pixels of the EL substrate and the corresponding color filter layers formed in the corresponding portion of the color filter base, wherein a common color filter bank between two portions of the color filter base corresponding to a first pixel and a second pixel that are adjacent to each other has a greater width than color filter banks between the first, second, and third areas in each of the portions of the color filter base, a portion of a color filter layer formed with respect to an outermost area that is adjacent to the second pixel, among the first, second, and third areas corresponding to the first pixel, covers a top surface of a color filter bank closest to the second pixel, among a pair of color filter banks defining the outermost area, the portion of the color filter layer extending towards the second pixel and having a greater length than a portion of the color filter layer formed with respect to the outermost area that covers a top surface of a color filter bank opposing the color filter bank closest to the second pixel, and an interval between (i) the portion of the color filter layer formed with respect to the outermost area that covers the top surface of the color filter bank closest to the second pixel, among the pair of color filter banks defining the outermost area, and (ii) a portion of a color filter layer formed with respect to an area adjacent to the first pixel, among the first, second, and third areas corresponding to the second pixel, that covers a top surface of a color filter bank closest to the first pixel, among a pair of color filter banks defining the area adjacent to the first pixel, equals or falls within a predetermined range of approximation to intervals between portions of adjacent color filter layers that cover top surfaces of color filter banks between the first, second, and third areas in each of the portions of the color filter base.