公开(公告)号：US10893585B2

公开(公告)日：2021-01-12

申请号：US16456858

申请日：2019-06-28

Applicant: Lumileds LLC

Inventor： Ronald Bonne ,  Udo Karbowski

IPC: H05B45/10 ,  B60Q1/14

Abstract: A LED controller for an LED pixel array includes a serial interface to an external data bus, along with an address generator connected to the serial interface and the LED pixel array. An image frame buffer is connected to the interface to receive image data and further connected to the address generator to receive an image frame buffer address. A command and control module is connected to the serial interface and configured to modify image frame buffer output signals. A calibration data storage module is connected to the command and control module to store calibration data related to pixel voltage response in the LED pixel array.

公开(公告)号：US20230417387A1

公开(公告)日：2023-12-28

申请号：US18340451

申请日：2023-06-23

Applicant: LUMILEDS LLC

Inventor： Barbara Roswitha Mülders ,  Udo Karbowski

IPC: F21S43/15 ,  F21S43/14 ,  F21S43/19

CPC classification number: F21S43/15 ,  F21S43/14 ,  F21S43/195 ,  F21Y2115/10

Abstract: A flexible three dimensional display assembly is provided. The flexible display assembly includes electrically interconnected light emitting elements, a flexible lattice fixture and a display bezel. The light emitting elements are electrically interconnected by a system of conductors. The light emitting elements are coupled to the flexible lattice fixture by an arrangement of structurally interconnected framing cells that receive pairs of the light emitting elements. The flexible lattice fixture is secured to the substrate of the display bezel such that the pairs of light emitting elements are maintained in optical alignment with corresponding pairs of apertures of the display bezel.

公开(公告)号：US11031579B2

公开(公告)日：2021-06-08

申请号：US16753707

申请日：2018-09-14

Applicant: Lumileds LLC

Inventor： Florent Monestier ,  Udo Karbowski

IPC: H01L27/32 ,  H01L51/56 ,  H01L51/50

Abstract: The invention describes a method of manufacturing an OLED device (1) comprising an OLED (10) and an integrated negative overvoltage protection diode (11), which method comprises at least the steps of: depositing a first OLED electrode (100) and a separate second OLED electrode contact (101C) on a carrier (12), which second OLED electrode contact (101C) incorporates a first overvoltage protection diode electrode (110); depositing an organic material layer stack (14) to define an active region (14OLED) of the OLED (10) and an active region (14OPD) of the overvoltage protection diode (11); depositing a second OLED electrode (101) to extend over the active region (14OLED) of the OLED (10) and the second OLED electrode contact (101C); and depositing a second overvoltage protection diode electrode (111) to extend over the active region (14OPD) of the overvoltage protection diode (11) and the first OLED electrode (100).

公开(公告)号：US10932336B2

公开(公告)日：2021-02-23

申请号：US16456858

申请日：2019-06-28

Applicant: Lumileds LLC

Inventor： Ronald Bonne ,  Udo Karbowski

IPC: H05B45/10 ,  B60Q1/14

Abstract: A LED controller for an LED pixel array includes a serial interface to an external data bus, along with an address generator connected to the serial interface and the LED pixel array. An image frame buffer is connected to the interface to receive image data and further connected to the address generator to receive an image frame buffer address. A command and control module is connected to the serial interface and configured to modify image frame buffer output signals. A calibration data storage module is connected to the command and control module to store calibration data related to pixel voltage response in the LED pixel array.

公开(公告)号：US12075540B2

公开(公告)日：2024-08-27

申请号：US17925566

申请日：2021-05-17

Applicant: LUMILEDS LLC

Inventor： Christian Kalkschmidt ,  Udo Karbowski

IPC: H05B45/30 ,  H05B45/325 ,  H05B45/48

CPC classification number: H05B45/48 ,  H05B45/325

Abstract: A lighting unit includes a power supply that provides a maximum voltage and multiple LED lighting circuits. Each of the LED lighting circuits includes an LED string, multiple switches, a switching sequencer and a switch controller. The LED string includes multiple series-connected emitters having a total forward voltage that exceeds the maximum voltage of the power supply. Each of the switches is coupled in parallel with a respective LED of the LED string. The switching sequencer provides a sequence of switching patterns such that a total forward voltage of simultaneously active LEDs in each switching pattern does not exceed the maximum voltage of the power supply. The switch controller actuates switches according to each of the switching patterns in the sequence. The LED string of each of the plurality of LED lighting circuits is arranged in a two-dimensional array.

公开(公告)号：US20230403771A1

公开(公告)日：2023-12-14

申请号：US18207556

申请日：2023-06-08

Applicant: Lumileds LLC

Inventor： Ronald Johannes Bonne ,  Udo Karbowski

IPC: H05B45/10 ,  B60Q1/14

CPC classification number: H05B45/10 ,  B60Q1/143 ,  B60Q2300/45 ,  B60Q2300/42 ,  B60Q2300/054

Abstract: A LED controller for an LED pixel array includes an image frame buffer to receive image data and a standby image buffer connected to the image frame buffer to hold a standby image. A command and control module connected is configured to substitute the standby image in the standby image buffer for the image in the image frame buffer when image data is unavailable.

公开(公告)号：US11284489B2

公开(公告)日：2022-03-22

申请号：US16951990

申请日：2020-11-18

Applicant: Lumileds LLC

Inventor： Manuel Grave ,  Udo Karbowski

IPC: H05B45/395 ,  H05B45/20 ,  H05B45/46 ,  H01L25/075 ,  H01L25/16 ,  H01L33/62

Abstract: An LED lighting package is described that contains a first LED string with a plurality of series-connected light-emitting diodes and a first linear regulator arranged to determine the current through the first LED string. At least one further LED string includes a plurality of series-connected light-emitting diodes of a different color, and a further linear regulator is arranged to determine the current through that LED string. The different colored LED strings are connected in parallel. A common voltage supply is used for the LED strings. The number of light-emitting diodes in the first LED string exceeds the number of light-emitting diodes in each further LED string (, and the number of light-emitting diodes in each LED string is chosen such that the total forward voltage of a further LED string is essentially the same as the total forward voltage of the first LED string.

公开(公告)号：US11028981B2

公开(公告)日：2021-06-08

申请号：US16787918

申请日：2020-02-11

Applicant: Lumileds LLC

Inventor： Udo Karbowski ,  Christian Kleijnen ,  Josef Schug

IPC: F21S4/24 ,  F21V23/06 ,  B60Q3/56 ,  F21Y103/10 ,  F21Y115/10

Abstract: Lighting device, in particular for automotive applications, comprising a plurality of lighting elements, wherein each lighting element comprises at least one or more light emitting diodes (LEDs). The lighting device comprises a first connector for connecting the lighting device to a lighting driver. The lighting elements are arranged in a row in order to form a luminous band. The plurality of lighting elements is divided into more than one group, each group consisting of at least one or more lighting elements. The lighting elements of one group are electrically connected in series. The groups are electrically connected in parallel in order to control each group individually.

公开(公告)号：US20200274111A1

公开(公告)日：2020-08-27

申请号：US16753707

申请日：2018-09-14

Applicant: Lumileds LLC

Inventor： Florent Monestier ,  Udo Karbowski

IPC: H01L51/56 ,  H01L27/32

Abstract: The invention describes a method of manufacturing an OLED device (1) comprising an OLED (10) and an integrated negative overvoltage protection diode (11), which method comprises at least the steps of: depositing a first OLED electrode (100) and a separate second OLED electrode contact (101C) on a carrier (12), which second OLED electrode contact (101C) incorporates a first overvoltage protection diode electrode (110); depositing an organic material layer stack (14) to define an active region (14OLED) of the OLED (10) and an active region (14OPD) of the overvoltage protection diode (11); depositing a second OLED electrode (101) to extend over the active region (14OLED) of the OLED (10) and the second OLED electrode contact (101C); and depositing a second overvoltage protection diode electrode (111) to extend over the active region (14OPD) of the overvoltage protection diode (11) and the first OLED electrode (100).

公开(公告)号：US12232227B2

公开(公告)日：2025-02-18

申请号：US18207556

申请日：2023-06-08

Applicant: Lumileds LLC

Inventor： Ronald Johannes Bonne ,  Udo Karbowski

IPC: H05B45/10 ,  B60Q1/14

Abstract: A LED controller for an LED pixel array includes an image frame buffer to receive image data and a standby image buffer connected to the image frame buffer to hold a standby image. A command and control module connected is configured to substitute the standby image in the standby image buffer for the image in the image frame buffer when image data is unavailable.