公开(公告)号：US11158611B2

公开(公告)日：2021-10-26

申请号：US16620693

申请日：2018-06-08

Applicant: OSRAM OLED GmbH

Inventor： Ee Lian Lee ,  Tilman Eckert ,  Ralph Bertram ,  Kok Eng Ng ,  Anuarul Ikhwan Mat Nazri

IPC: H01L25/075 ,  H01L21/66 ,  H01L33/50 ,  H01L33/62

Abstract: An LED filament is disclosed. In an embodiment an LED filament includes a carrier composed of a material transparent to electromagnetic radiation, two electrical terminals located on the carrier and at least two radiation-emitting semiconductor chips arranged on the carrier, wherein the semiconductor chips are electrically connected to the electrical terminals, wherein undersides of the semiconductor chips are connected by way of an adhesive layer to the carrier, wherein the adhesive layers comprise a first conversion material, wherein the first conversion material is configured to shift at least a portion of a wavelength of radiation from the semiconductor chips, wherein the semiconductor chips comprise a conversion layer on upper sides and on lateral areas, wherein the conversion layers are configured to shift at least a portion of the wavelength of the radiation from the semiconductor chips, wherein a transparent matrix material mixed with a second conversion material covers the semiconductor chips, and wherein sedimented conversion layers with an increased concentration of the second conversion material cover the upper sides and lateral areas of the semiconductor chips.

公开(公告)号：US11662070B2

公开(公告)日：2023-05-30

申请号：US17259064

申请日：2019-07-10

Applicant: OSRAM OLED GmbH

Inventor： Frank Singer ,  Ralph Bertram ,  Andreas Dobner ,  Andreas Waldschik

IPC: F21S4/20 ,  F21V9/30 ,  B29C48/154 ,  B29C48/06 ,  B29C48/30 ,  H01L25/075 ,  H01L33/54 ,  B29K83/00 ,  B29L11/00 ,  B29L31/34

CPC classification number: F21S4/20 ,  B29C48/06 ,  B29C48/154 ,  B29C48/304 ,  F21V9/30 ,  H01L25/0753 ,  H01L33/54 ,  B29K2083/00 ,  B29K2995/0035 ,  B29L2011/0075 ,  B29L2031/3462

Abstract: A placement device for placing optoelectronic components on electrical lines includes a holding device for holding at least one electric line extending in a longitudinal direction, and an application device for arranging optoelectronic components on the at least one electrical line.

公开(公告)号：US11616175B2

公开(公告)日：2023-03-28

申请号：US16769531

申请日：2018-12-10

Applicant: Osram OLED GmbH

Inventor： Ralph Bertram ,  Ivar Tangring ,  Philipp Pust

IPC: H01L33/56 ,  H01L33/50 ,  C09K11/02

Abstract: The invention relates to a luminophore mixture which comprises at least one quantum dot luminophore and at least one functional material, the functional material is formed such that it scatters electromagnetic radiation and/or has a high density.