Patent ID: 8717260
Filing Date: 2014-05-06
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 light, a second light-emitting unit that emits light, and a third light-emitting unit that emits 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 adjacent to the second pixel, among the first, second, and third areas corresponding to the first pixel, that 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, extends towards the second pixel and overlaps 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, and 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 the portion of the color filter layer formed with respect to the area adjacent to the first pixel that covers the top surface of the color filter bank closest to the first pixel, among the pair of color filter banks defining the area adjacent to the first pixel, overlap each other above the common color filter bank.