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US 2003/0151358 A1Published application
Organic EL display device
AssigneeNEC Corporation
InventorDaisuke Iga
Life of this patent
Estimating the term…
Abstract
An organic electroluminescence (EL) display unit includes a plurality of pixels formed on a glass substrate and each including a TFT area and a luminescence area. An edge cover film covers the TFT area and exposes the luminescence area through a window formed in the edge cover film. The edge of the edge cover film adjacent to the window has a taper angle equal to or smaller than 30 degrees. This taper angle is obtained by a post-baking treatment in addition to a step alleviating film formed in the luminescence area to underlie the organic EL element.
Claims6
An organic electroluminescence (EL) display unit comprising:
- a transparent insulator substrate, and a plurality of pixels overlying said transparent substrate and each including a TFT area and a luminescence area, said TFT area receiving therein a TFT and including an edge cover film covering said TFT, said luminescence area having an organic EL element and a window formed in said edge cover film for exposing therefrom said organic EL element, an edge of said edge cover film adjacent to said window having a taper angle equal to or smaller than 30 degrees.
Dependencies are inferred from the claim text.