US 12,265,116 B2
Device and method for detecting light-emitting diode
Kuang-Hua Liu, Shenzhen (CN)
Assigned to Century Technology (Shenzhen) Corporation Limited, Shenzhen (CN)
Filed by Century Technology (Shenzhen) Corporation Limited, Shenzhen (CN)
Filed on Mar. 28, 2023, as Appl. No. 18/127,541.
Claims priority of application No. 202210430435.4 (CN), filed on Apr. 22, 2022.
Prior Publication US 2023/0341455 A1, Oct. 26, 2023
Int. Cl. G01R 31/26 (2020.01); G01N 21/95 (2006.01)
CPC G01R 31/2635 (2013.01) [G01N 21/95 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A device configured for detecting a plurality of light-emitting diodes (LEDs) bonded to a display substrate, the device comprising:
a power supply assembly configured to provide electrical signals to the plurality of LEDs;
a pressure fixture configured to apply a force to the power supply assembly, so that the power supply assembly directly contacts and electrically connects to at least one of the plurality of LEDs; and
a detector on a side of the pressure fixture away from the power supply assembly, the detector being configured for collecting images of the plurality of LEDs in a power-on state and determining whether each of the plurality of LEDs emits light according to the images, thereby detecting whether each of the plurality of LEDs emits light according to a normal standard.