Manufacturing method of organic flat light-emitting devices

• US 6,924,160 B2
• Filed: 12/05/2002
• Issued: 08/02/2005
• Est. Priority Date: 12/31/2001
• Status: Expired due to Term

• Current Assignee: III Holdings 1, LLC (Intellectual Ventures LLC)
• Original Assignee: RITDISPLAY CORPORATION
• Inventors: Wei, Mao-Kuo, Wang, Jih-Yi
• Primary Examiner(s): Kielin, Erik
• Assistant Examiner(s): Dolan, Jennifer M
• Application Number:
  US10/310,056
• Publication Number:
  US 20030124752A1
• Time in Patent Office: 971 Days
• Field of Search: 438/22, 438/27, 438/29, 438/30, 438/31, 438/32, 438/34, 438/35, 438/99, 257/40, 257/79, 257/88, 257/91, 257/95, 257/98, 428/698, 313504-509, 313/113
• US Class Current: 438/29
• CPC Class Codes: H10K 50/858 comprising refractive means, e.g. lenses
• CPC Class Codes: H10K 59/879 comprising refractive means, e.g. lenses
• CPC Class Codes: H10K 71/00 Manufacture or treatment specially adapted for the organic devices covered by this subclass

Abstract

A manufacturing method of organic flat light-emitting devices includes the following steps. First, a transparent substrate is provided, which has several microstructures on its first surface and the microstructures have a maximum height of 100 μm from the first surface. Second, a transparent anode is formed on the second surface of the transparent substrate that is opposite to the first surface. Thirdly, at least one organic electro-luminescent layer is formed on the transparent anode. Finally, a metal cathode is formed on the organic electro-luminescent layer. Another manufacturing method of organic flat light-emitting devices includes the steps of: forming a transparent thin film on a first surface of a transparent substrate, the transparent thin film having a plurality of microstructures with a maximum height of 100 μm; forming a transparent anode on a second surface of the transparent substrate opposite to the first surface; forming at least one organic electro-luminescent layer; and forming a metal cathode on the organic electro-luminescent layer.

Claims

1. A manufacturing method of organic flat light-emitting devices, comprising the steps of:

providing a transparent substrate, which has a first surface and a second surface, the first surface being formed with a plurality of microstructures and each of the microstructures having a curved surface, wherein the curved surface is a protruding surface having a square border;

forming a transparent anode on the second surface of the transparent substrate;

forming at least one organic electro-luminescent layer; and

forming a metal cathode on the organic electro-luminescent layer.

2. The manufacturing method of claim 1, wherein the square border has a side length between 10 μ

m and 50 μ

m.