US 11,718,220 B2
Compensating for failed pixels in pixelated vehicle headlamps
Dietrich Bonart, Bad Abbach (DE); Michael Weis, Planegg (DE); Gernot Unterweger, Latschach (AT); Salvatore Piccolella, Padua (IT); and Adolfo De Cicco, Castel d'Azzano (IT)
Assigned to Infineon Technologies AG, Neubiberg (DE)
Filed by Infineon Technologies AG, Neubiberg (DE)
Filed on Jan. 19, 2021, as Appl. No. 17/152,519.
Prior Publication US 2022/0227286 A1, Jul. 21, 2022
Int. Cl. B60Q 1/14 (2006.01); H05B 45/44 (2020.01); H05B 45/12 (2020.01); B60Q 1/08 (2006.01)
CPC B60Q 1/1423 (2013.01) [B60Q 1/08 (2013.01); H05B 45/12 (2020.01); H05B 45/44 (2020.01)] 17 Claims
OG exemplary drawing
 
9. A method comprising:
manufacturing a driver circuit for driving a plurality of lighting elements of a vehicle headlamp based on information, wherein the information compensates for one or more failed elements of the plurality of lighting elements, wherein the information includes standard driving values for active pixels surrounded by other active pixels, and compensating driving values for one or more active pixels that are neighboring one or more failed pixels, wherein the compensating driving values are larger than the standard driving values so as to compensate for the one or more failed pixels;
calibrating the plurality of lighting elements to measure cross-talk in a manufacturing stage; and
defining the information based on the calibrating.