Patent ID: 7503823

Claim:
A method of producing an active matrix organic light-emitting device having banks provided in a row direction and in a column direction, and a plurality of organic light-emitting portions isolated from each other by the banks, each of the organic light-emitting portions comprising a first electrode, a plurality of organic EL layers, and a second electrode extending over the plurality of light-emitting portions, the method comprising: forming banks such that a height of a bank portion (i) of a row direction and a height of a bank portion (ii) of a column direction are different from each other, wherein the ratio of the height of the lower bank portion to the height of the higher bank portion is from ⅓ to ¾ and the height of the bank portion (ii) is uniform along the column direction; applying an organic EL material in a continuous manner along the higher bank portion, between the banks of the higher bank portion; drying the organic EL material such that the height of the lower bank portion is greater than the height of the plurality of the organic EL layers; and forming a second electrode to continuously extend over a plurality of light-emitting portions which are adjacent to each other in the row direction and in the column direction.