| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a passive matrix type organic EL display panel having excellent second electrode separability and durability in a state where its thickness is reduced. <P>SOLUTION: First electrodes 13 are formed into parallel stripe-like shapes on a substrate 12, and a plurality of electrically insulating barrier ribs 14 are formed in a state perpendicularly crossing the first electrodes 13. A plurality of second electrodes 16 are formed to perpendicularly cross the first electrodes 13, and organic electroluminescent layers 15 are formed between the first electrodes 13 and the second electrode layers 16. The first electrodes 13, the barrier ribs 14, the organic EL layers 15 and the second electrodes 16 are sealed by a sealing film 17. Each barrier rib 14 is formed to have an inverse tapered portion 14b with a widened distal end. The angle θ defined by each tapered surface of the inverse tapered portion and a plane parallel with the substrate 12 is 50° to 80°, and the height H of the barrier rib is 1.5-6.0 μm. The sealing film 17 is formed of silicon nitride, and its thickness is 0.7-4.0 μm. <P>COPYRIGHT: (C)2007,JPO&INPIT |
