Patent ID: 9345074
Filing Date: 2016-05-17
CPC Classification: G09G,H01L,H05B

Claim Text:
1. An organic EL display apparatus which includes a light emitting portion using organic electroluminescence, and in which pixels of a plurality of colors emitting lights in mutually different emission wavelength bands by using light from the light emitting portion are disposed in a display region, the apparatus comprising: an electrochromic element or a plurality of kinds of electrochromic elements that develop mutually different colors, the electrochromic element being disposed in the display region; and a driver that applies a DC voltage to the electrochromic elements, wherein each of the electrochromic elements has a peak of a transmission spectrum during color development in any one of the emission wavelength bands of the pixels corresponding to the plurality of colors, wherein chromaticity of image display can be adjusted by controlling a color development intensity of the electrochromic element by using the DC voltage, wherein the driver includes: wherein the DC voltage which is to be applied to each of the electrochromic elements is set on the basis of the measured total driving time and the correspondence relationship.