Patent ID: 9680124
Date: 2017-06-13
CPC Classifications: H01L,H05B,Y02B,Y02E

Claim:
1. An organic electroluminescent device, comprising: a first electrode having an upper face, the first electrode being light transmissive; an organic light emitting layer provided on the first electrode; a second electrode provided on the organic light emitting layer, the second electrode including a plurality of conductive parts, the conductive parts extending in a first direction parallel to the upper face and being arranged in a second direction, the second direction being parallel to the upper face and intersecting with the first direction, the second electrode being light reflective, and when a length of each of the conductive parts in the second direction is set to W1 (micrometer), and a pitch of each of the conductive parts is set to P1 (micrometer), the W1 and the P1 satisfying a relationship of W1≧−647(1−W1/P1)+511 and a relationship of W1≦−882(1−W1/P1)+847, (1−W1/P1) being not less than 0.55 and not more than 0.85, and the W1 being not less than 75 μm and not more than 300 μm; and an insulating layer provided on the first electrode, the insulating layer including the organic light emitting layer being provided on the insulating layer, the first electrode having a plurality of exposed parts exposed by the openings, and each of the conductive parts overlapping with any of the exposed parts when projected onto a plane parallel to the upper face.