Display device, display apparatus and method of adjusting a color shift of white light in same

Abstract

A display device includes: an optical cavity portion; and a light emitting layer, wherein a peak wavelength of an internal emission spectrum of the light emitting layer is identical to a peak wavelength of a multiple interference filter spectrum of the optical cavity portion, and wherein a color shift Δuv of white light in the display device at a viewing angle of 60° is less than or equal to 0.015. A method of adjusting a color shift of white light in a display device includes: setting a peak wavelength of a multiple interference filter spectrum obtained by an optical cavity portion in the display device equal to a peak wavelength of an internal emission spectrum of a light emitting layer in the display device; and adjusting a position of the light emitting layer in a thickness direction thereof

1 . A method of adjusting a color shift of white light in a display device comprising:
 setting a peak wavelength of a multiple interference filter spectrum obtained by an optical cavity portion in the display device equal to a peak wavelength of an internal emission spectrum of a light emitting layer in the display device; and   adjusting a position of the light emitting layer in a thickness direction thereof.   
     
     
         2 . A method according to  claim 1 , wherein the position of the light emitting layer is adjusted in a thickness direction thereof while maintaining a constant optical distance of the optical cavity portion. 
     
     
         3 . A method according to  claim 1 , wherein the position of the light emitting layer is adjusted relative to a substrate on which the optical cavity portion is formed. 
     
     
         4 . A method according to  claim 1 , wherein the display device forms a subpixel which emits light of a color selected from the group consisting of red, green and blue.