Display apparatus and method for fabricating the same
View Patent ↗An active-matrix-type display apparatus ensuring sufficient luminous intensity of display devices within a display plane and allowing improved display properties is provided. Such display apparatus having of a plurality of pixels comprises a lower electrode formed on a substrate; organic layers formed on the lower electrode; and an upper common electrode formed on the organic layers; in which a plurality of the pixels are partitioned by a rib larger in the thickness than the organic layers and having at least a conductive material layer; and the conductive material layer is electrically connected to the upper common electrode.
1. A method for fabricating a display apparatus having a plurality of pixels, the method comprising the steps of:
forming on a substrate a first electrode;
forming between adjacent ones of said plurality of pixels a rib having a conductive material, said rib being aligned substantially normal to the substrate;
placing a mask on said rib, said mask being aligned substantially parallel to said substrate, and forming on said first electrode a light emitting layer smaller in thickness than said rib using said mask; and
forming a second electrode on said light emitting layer and on and over said rib.
2. The method for fabricating a display apparatus as claimed in claim 1 , wherein said rib is made of an insulating material and a conductive material.
3. The method for fabricating a display apparatus as claimed in claim 1 , wherein said rib is formed so as to have a mesa-formed section such that the width of which becomes wider toward said substrate.
4. The method for fabricating a display apparatus as claimed in claim 2 , wherein said rib is formed so as to have a mesa-formed section such that the width of which becomes wider toward said substrate.
5. The method for fabricating a display apparatus as claimed in claim 1 , further comprising the steps of:
forming on said second electrode a protective film made of an insulating material or a conductive material; and
adhering on said protective film a second substrate using a photo-curing resin.
6. The method for fabricating a display apparatus as claimed in claim 1 , further comprising a step of forming an insulating film under said rib.
7. The method for fabricating a display apparatus as claimed in claim 1 , wherein said rib is formed in an island form in the step for forming said rib.
8. The method for fabricating a display apparatus as claimed in claim 1 , wherein said second electrode and said conductive material are made of different materials.
9. The method for fabricating a display apparatus as claimed in claim 1 , wherein said first electrode is higher in reflectivity of light than said second electrode.
10. The method for fabricating a display apparatus having a plurality of pixels, the method comprising the steps of:
forming on a substrate a field effective transistor having a first electrode, a second electrode and a third electrode;
forming on said field effective transistor an interlayer insulating film;
forming an opening to said interlayer insulating film;
forming on said interlayer insulating film on a lower electrode connected through said opening to said first electrode;
forming between adjacent ones of said plurality of pixels a rib having a conductive material, said rib being aligned substantially normal to said substrate;
placing a mask on said rib, said mask being aligned substantially parallel to said substrate, and forming on said lower electrode an organic layer having a light emitting layer smaller in thickness than said rib using said mask; and
forming on and over said said rib and said organic layer an upper electrode and a protective layer made of an insulating material or a conductive material while keeping said organic layer unexposed to the air.
11. The method for fabricating a display apparatus as claimed in claim 10 , wherein said rib is made of an insulating material and a conductive material.
12. The method for fabricating a display apparatus as claimed in claim 10 , wherein said rib is formed so as to have a mesa-formed section such that the width of which becomes wider toward said substrate.
13. The method for fabricating a display apparatus as claimed in claim 11 , wherein said rib is formed so as to have a mesa-formed section such that the width of which becomes wider toward said substrate.
14. The method for fabricating a display apparatus as claimed in claim 10 , further comprising a step of adhering on said protective film a second substrate using a photo-curing resin.
15. The method for fabricating a display apparatus as claimed in claim 10 , further comprising a step of forming an insulating film under said rib.
16. The method for fabricating a display apparatus as claimed in claim 10 , wherein said rib is formed in an island form in the step for forming said rib.
17. The method for fabricating a display apparatus as claimed in claim 10 , wherein said upper electrode and said conductive material layer are individually made of different materials.
18. The method for fabricating a display apparatus as claimed in claim 10 , wherein said lower electrode is higher in reflectivity of light than said upper electrode.