US 12,446,124 B2
Display diagnostic system and method
Robert J. Kapinos, Durham, NC (US); Scott Li, Cary, NC (US); and Igor Stolbikov, Apex, NC (US)
Assigned to LENOVO (SINGAPORE) PTE. LTD, New Tech Park (SG)
Filed by LENOVO (SINGAPORE) PTE. LTD., Singapore (SG)
Filed on Oct. 5, 2023, as Appl. No. 18/481,811.
Prior Publication US 2025/0119993 A1, Apr. 10, 2025
Int. Cl. H05B 45/18 (2020.01); G06F 11/263 (2006.01); H05B 45/12 (2020.01); H05B 45/14 (2020.01); H05B 45/355 (2020.01); H05B 45/50 (2022.01); H05B 47/19 (2020.01)
CPC H05B 45/18 (2020.01) [G06F 11/263 (2013.01); H05B 45/12 (2020.01); H05B 45/14 (2020.01); H05B 45/355 (2020.01); H05B 45/50 (2020.01); H05B 47/19 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A display diagnostic system comprising:
a memory configured to store program instructions;
a sensor configured to monitor a parameter of a light emitter of a display device, the light emitter configured to emit light to illuminate a display screen of the display device, the light emitter powered by an inverter of the display device; and
one or more processors communicatively connected to the memory and the sensor, wherein the program instructions are executable by the one or more processors to:
receive a sensor signal generated by the sensor, the sensor signal indicative of the parameter of the light emitter monitored by the sensor at a first time;
determine that the light emitter is inactive at the first time based on the sensor signal; and
responsive to determining that the light emitter is expected to be active at the first time, generate a control signal indicating a fault state of the inverter.