The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 2019
Filed:
Dec. 13, 2014
Organic light emitting device having protrusion formed of transparent material and display apparatus
Boe Technology Group Co., Ltd., Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
An organic light emitting device and a display apparatus are disclosed. The organic light emitting device includes an array substrate and a package substrate (); on a side of the package substrate () facing the array substrate, there is provided a protrusion () formed of a first transparent material, a surface of the protrusion () is also covered with a transparent layer () formed of a second transparent material, and the refractive index of the second transparent material is larger than the refractive index of the first transparent material. With the organic light emitting device, a part of light that is emitted from an organic light-emitting layer () and irradiated to a surface of the protrusion () is totally reflected and changed in optical paths to decrease incident light totally reflected at a boundary between the package substrate () and the outside air, and light that has been changed in optical paths is irradiated out through the package substrate () more easily, thereby improving the output efficiency of light.