Method for operating a lighting device for a motor vehicle and lighting device for a motor vehicle

DE102019101710B4Active Publication Date: 2026-07-16HELLA GMBH & CO KGAA
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
DE102019101710
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2019-01-24
Publication Date
2026-07-16
Estimated Expiration
2039-01-24

AI Technical Summary

Technical Problem

Existing lighting devices with LED matrices or high-resolution headlights suffer from disturbing visual effects due to gaps in light distribution caused by failed LEDs or pixels, which can lead to reduced user acceptance despite meeting legal minimum requirements.

Method used

A method and device that adjust the brightness of adjacent non-defective pixels or sections to create a smooth transition from the failed pixel, minimizing the visibility of gaps by reducing brightness more for adjacent pixels closer to the failure and less for those further away, using control means to recalibrate the light distribution.

Benefits of technology

The method and device effectively reduce the visibility of gaps in light distribution, enhancing user acceptance by creating a more homogeneous illumination.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 00000000_0000_ABST
    Figure 00000000_0000_ABST
Patent Text Reader

Abstract

A method for operating a lighting device for a motor vehicle, which has light-controlling means or a plurality of light sources for the targeted generation of pixels of a light distribution (1), wherein, in the event of a failure of at least one pixel (2) of the light distribution (1) caused by a defect in a section of the light-controlling means or by a failure of one of the light sources, at least one non-defective section of the light-controlling means or at least one of the non-failing light sources is controlled in order to correct the light distribution (1), characterized in that the at least one non-defective section of the light-controlling means or the at least one of the non-failing light sources is controlled in such a way that at least one pixel (3, 4, 5, 6) of the light distribution (1), which is adjacent to the at least one failed pixel (2), is reduced in its brightness.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Light-emitting diode device with compensating mechanism

    CN101945513A

  • Light module for a lighting device of a motor vehicle, as well as a lighting device of a motor vehicle with such a light module

    DE102009060791A1

  • Method for detecting pixel element states of a matrix headlight of a matrix headlight system

    DE102018101686B3

  • CN000101945513A