Invention Grant
- Patent Title: Process for producing a layer composite consisting of a luminescence conversion layer and a scattering layer
- Patent Title (中): 用于制造由发光转换层和散射层组成的层复合物的方法
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Application No.: US13817596Application Date: 2011-07-20
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Publication No.: US08748201B2Publication Date: 2014-06-10
- Inventor: Stephan Preuss , Thomas Bemmerl
- Applicant: Stephan Preuss , Thomas Bemmerl
- Applicant Address: DE
- Assignee: OSRAM Opto Semiconductors GmbH
- Current Assignee: OSRAM Opto Semiconductors GmbH
- Current Assignee Address: DE
- Agency: DLA Piper LLP (US)
- Priority: DE102010034923 20100820
- International Application: PCT/EP2011/062470 WO 20110720
- International Announcement: WO2012/022576 WO 20120223
- Main IPC: H01L33/60
- IPC: H01L33/60

Abstract:
A process of producing a layer composite includes a luminescence conversion layer and a scattering layer, wherein a press having a first pressing tool with a cavity and a second pressing tool is used including introducing a first polymer including a luminescence conversion substance into the cavity, inserting a film between the first and second tools, closing the press and carrying out a first pressing, hardening the first polymer to form a luminescence conversion layer in the press, opening the press, wherein the luminescence conversion layer adhering to the film remains in the press, introducing a second polymer including scattering particles into the cavity, closing the press and carrying out a second pressing, hardening the second polymer to form a scattering layer disposed on the luminescence conversion layer, opening the press, and removing the support film with the layer composite including the luminescence conversion layer and the scattering layer.
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