Patent ID: 8035299

Claim:
An organic EL display comprising: a member made of an organic material; a gas barrier layer on the member; and an organic EL unit on the gas barrier layer, wherein the gas barrier layer comprises AlxTiyOz, wherein Al represents aluminum, Ti represents titanium, O represents oxygen, x represents the ratio of atoms of Al, y represents the ratio of atoms of Ti, and z represents the ratio of atoms of O, wherein a Ti-atom ratio of the gas barrier layer is given in the units of atom % and defined by the following equation: Ti-atom ratio={y/(x+y)}·100, wherein the gas barrier layer has a first portion at a first interface with the member and a second portion at a second interface with the organic EL unit, wherein the Ti-atom ratio of the first portion is 0 atom %, wherein the Ti-atom ratio of the second portion is greater than or equal to 10 atom %, wherein the first portion of the gas barrier layer has a first thickness from the first interface toward the second interface, wherein the first thickness is greater than or equal to 20 nanometers, wherein the second portion of the gas barrier layer has a second thickness from the second interface toward the first interface, and wherein the second thickness is greater than or equal to 10 nanometers.