BACK-EMITTING OLED DEVICE

摘要

An OLED device includes a transparent anode of given sheet resistance R1, a cathode of given sheet resistance R2, the ratio r=R2/R1 ranging from 0.1 to 5, a first anode electrical contact and a first cathode electrical contact which is offset from the anode electrical contact, for any point B1 of each anode contact, on defining a distance D1 between the point B1 and a point C1 of the contact surface which is closest to the point B1, and on defining a distance L1 between the point B1 and a point X1 of a second edge of the active zone opposite from the first edge, passing through C1, then the following criteria are defined:
if 0.1≦r<1.75, then 20%

主权项

1. An organic light-emitting diode device, comprising:
a transparent substrate with a first main face comprising a stack comprising in this order, starting from said first main face:
a lower electrode forming an anode, which is transparent, the anode having a resistance R1,an organic light-emitting system above the anode,an upper electrode forming a cathode, arranged above the organic light-emitting system, the cathode having a sheet resistance R2, the ratio r=R2/R1 ranging from 0.1 to 5, the anode, the organic light-emitting system and the cathode defining an active, common zone,along a first edge of the active common zone, a first anode electrical contact,a first cathode electrical contact which is offset from the first anode electrical contact, the first cathode electrical contact having a contact surface, and above the organic light-emitting system, away from the first main face, a reflector covering the active zone, wherein, for any point B1 of the first anode electrical contact, on defining a distance D1 between said point B1 and a point C1 of the contact surface which is closest to said point B1, and on defining a distance L1 between said point B1 and a point X1 of a second edge of the active common zone opposite from the first edge, passing through C1, then the following criteria are defined:
if 0.1≦r<1.75, then 20%