公开(公告)号：US20230008186A1

公开(公告)日：2023-01-12

申请号：US17781932

申请日：2020-11-30

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Daniel RICHTER

IPC: H04N9/31

Abstract: A projection apparatus includes a light source for emitting light with an initial spectral distribution, an optical element, and a projection surface. The optical element is arranged in a beam path of light emitted from the light source between the light source and the projection surface. The optical element includes a number of pixels. The pixels of the optical element are each configured to convert light with the initial spectral distribution into light with a predetermined final spectral distribution different from the initial spectral distribution.

公开(公告)号：US20220293040A1

公开(公告)日：2022-09-15

申请号：US17636118

申请日：2020-08-18

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Daniel RICHTER ,  Marcel SEVERIN

IPC: G09G3/32

Abstract: A control method includes A) determining intrinsic activation times of individual semiconductor emitters of a display device. The display device includes a plurality of light-emitting semiconductor emitters with different intrinsic activation times. The method also includes B) determining and storing in each case an activation delay and/or a turn-on current change for each individual one of the semiconductor emitters. The method further includes C) energizing the individual semiconductor emitters according to the previously determined activation delay and/or turn-on current change, so that in a display mode of the display device the semiconductor emitters have equally long starting times for a light emission.

公开(公告)号：US20220180808A1

公开(公告)日：2022-06-09

申请号：US17602232

申请日：2020-03-11

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Daniel RICHTER

IPC: G09G3/3216

Abstract: A component for a display device, a display device and a method for operating the display device, a computer program and a storage medium are disclosed. The component comprises LED chips arranged in rows, wherein one red, one green and one blue LED chip are arranged alternately per row in the extension direction of the respective row and per column obliquely to the extension direction, and the rows have an offset from one another in the extension direction.

公开(公告)号：US20220320387A1

公开(公告)日：2022-10-06

申请号：US17624816

申请日：2020-06-25

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Daniel RICHTER ,  Brendan HOLLAND

IPC: H01L33/58 ,  H01L33/60 ,  H01L33/62 ,  G02B5/22 ,  H01S5/0232 ,  C09K11/06 ,  C09K11/02

Abstract: An optoelectronic component is specified comprising: at least one radiation-emitting semiconductor chip (1) which during operation emits electromagnetic radiation of a first wavelength range, and an absorber, wherein the absorber is predominantly transmissive to the emitted electromagnetic radiation of the first wavelength range, and the absorber absorbs at least 70% of the total radiation intensity of the electromagnetic spectrum of the visible light of the ambient light.

公开(公告)号：US20220319400A1

公开(公告)日：2022-10-06

申请号：US17610631

申请日：2020-04-27

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Brendan HOLLAND ,  Gunnar PETERSEN ,  Daniel RICHTER

IPC: G09G3/32

Abstract: A display apparatus includes a multiplicity of picture elements for emitting visible light in different colors in an adjustable manner by means of a plurality of semiconductor layer sequences. Each of the picture elements has a plurality of types of pixels and each type of pixels is configured for emitting light of a specific color. The pixels are each subdivided into a plurality of sub-pixel. All the sub-pixels are configured for emitting light of the same color out of the display apparatus without further color change. At least two sub-pixels within each pixel have emission areas of different sizes. An electrical control unit is assigned to each pixel. The control units are each configured to automatically control the sub-pixels of a relevant pixel depending on an energization intensity in such a way that a light-emitting area of the relevant pixel increases in stepped fashion with the energization intensity.

公开(公告)号：US20220165192A1

公开(公告)日：2022-05-26

申请号：US17439165

申请日：2020-02-25

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Daniel RICHTER ,  Sven WEBER-RABSILBER ,  Marcel SEVERIN

IPC: G09G3/20

Abstract: A method for operating a visual display apparatus is specified. The apparatus comprises a first optoelectronic semiconductor component configured to emit electromagnetic radiation of a first wavelength and comprising a first intrinsic switch-on delay. The apparatus comprises a second optoelectronic semiconductor component configured to emit electromagnetic radiation of a second wavelength and comprising a second intrinsic switch-on delay. The second wavelength is different from the first wavelength. The first semiconductor component is operated with a first operating current according to a first actuation signal. The second semiconductor component is operated with a second operating current according to a second actuation signal. The first and/or the second actuation signal comprise a delay clock signal selected such that emissions of electromagnetic radiation from the first and second semiconductor components comprise a switch-on delay with respect to each other that is smaller than a difference of the first and second intrinsic switch-on delays.

公开(公告)号：US20230265981A1

公开(公告)日：2023-08-24

申请号：US17768698

申请日：2020-12-01

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Martin BRANDL ,  Clemens HOFMANN ,  Daniel RICHTER

IPC: F21S41/19 ,  F21S45/47 ,  F21S41/148 ,  F21S41/151

CPC classification number: F21S41/192 ,  F21S45/47 ,  F21S41/148 ,  F21S41/151 ,  F21Y2107/90

Abstract: The disclosure relates to a halogen lamp replacement, in particular for car headlights, having a carrier plate which is covered on both main surfaces by structured electrically conductive layers, to which at least one respective light-emitting component, in particular at least one respective light-emitting-diode chip, is attached, the carrier plate being designed to dissipate heat generated by the light-emitting components to a heat sink formed by a coupling structure.

公开(公告)号：US20210358348A1

公开(公告)日：2021-11-18

申请号：US17286361

申请日：2019-10-15

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Gunnar PETERSEN ,  Daniel RICHTER ,  Michael FOERSTER ,  Nicole BERNER ,  Konrad WAGNER

IPC: G09F9/37 ,  G09F9/33 ,  H01L33/50 ,  H01L25/075

Abstract: A light emitting cell for use as a pixel, the light emitting cell being configured to generate the three primary colors and to form different color tones therewith, comprising: a light emitting front surface, a rear surface, and a substrate arranged between the front and rear surface; a light source carried by the substrate; three luminous sections, comprising a blue luminous section, a light converting red luminous section, and a light converting green luminous section; and a primary color selection device capable of performing a repetitive movement at a certain frequency so that, during this movement, one of the luminous sections is alternately selected as a potential light emitting section, characterized in that the primary color selection device is a single mechanical component that serves to select all three luminous sections.