Display apparatus using organic electroluminescent element and manufacturing method thereof
First Claim
1. A method for manufacturing a display apparatus including a substrate, a plurality of pixels formed on said substrate, and a barrier plate for separating adjoining pixels of said pixels from each other, each of said pixels having a lower layer portion including a wiring formed on said substrate, an upper portion including an organic electro-luminescent element, and a middle layer portion for insulating said lower layer portion and said upper layer portion from each other electrically, said method comprising the steps of:
- forming said lower layer portion including the wiring on said substrate;
forming said middle layer portion so as to cover said lower layer portion;
forming a contact hole connected with the wiring in said middle layer;
forming said organic electro-luminescent element on said middle layer portion to connect said organic electro-luminescent element with the wiring in said lower layer portion through the contact hole formed in said middle layer portion; and
disposing said barrier plate so as to overlap with a region including the contact hole, wherein;
said step of forming said organic electro-luminescent element is to form said organic electro-luminescent element composed of a reflective anode connected to said wiring, a transparent cathode disposed at a front face of said organic electro-luminescent element, and an organic layer held between the anode and the cathode, andthe organic layer emits light by recombination of a hole supplied from the anode and an electron supplied from the cathode, and furtherthe emitted light is taken out of the cathode disposed at the front face.
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Accused Products
Abstract
A display apparatus includes a substrate, a plurality of pixels formed on the substrate, and a barrier plate for separating adjoining pixels from each other. Each pixel includes a lower layer portion having wiring formed on the substrate, an upper layer portion having an organic electro-luminescent element, and a middle layer portion for insulating the lower layer portion and the upper layer portion from each other electrically. The organic electro-luminescent element is connected with the windings through a contact hole formed in the middle layer portion. The barrier plate is disposed in the upper layer portion so as to overlap with a region including a contact hole not suitable for forming the organic electro-luminescent element.
88 Citations
19 Claims
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1. A method for manufacturing a display apparatus including a substrate, a plurality of pixels formed on said substrate, and a barrier plate for separating adjoining pixels of said pixels from each other, each of said pixels having a lower layer portion including a wiring formed on said substrate, an upper portion including an organic electro-luminescent element, and a middle layer portion for insulating said lower layer portion and said upper layer portion from each other electrically, said method comprising the steps of:
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forming said lower layer portion including the wiring on said substrate; forming said middle layer portion so as to cover said lower layer portion; forming a contact hole connected with the wiring in said middle layer; forming said organic electro-luminescent element on said middle layer portion to connect said organic electro-luminescent element with the wiring in said lower layer portion through the contact hole formed in said middle layer portion; and disposing said barrier plate so as to overlap with a region including the contact hole, wherein; said step of forming said organic electro-luminescent element is to form said organic electro-luminescent element composed of a reflective anode connected to said wiring, a transparent cathode disposed at a front face of said organic electro-luminescent element, and an organic layer held between the anode and the cathode, and the organic layer emits light by recombination of a hole supplied from the anode and an electron supplied from the cathode, and further the emitted light is taken out of the cathode disposed at the front face. - View Dependent Claims (2, 3)
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4. A method for manufacturing a display apparatus comprising:
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forming a lower layer portion on a substrate, said lower layer portion including connecting wiring; forming a middle layer portion on a lower layer portion, said middle layer portion having a contact region and a light emitting region; forming a contact hole within said middle layer portion, said contact hole being disposed at said contact region; forming a reflective layer on said middle layer portion, said reflective layer being formed at said contact region and at said light emitting region, said reflective layer being electrically connected with said connecting wiring through said contact hole; forming a barrier plate over said contact region, said reflective layer being exposed within said light emitting region; forming an organic layer over said reflective layer, said organic layer being formed over said light emitting region; and forming a transparent layer over said organic layer, wherein said reflective layer, said organic layer and said transparent layer form an organic electro-luminescent element. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification