Non-contact probe-free Nano-LED / Micro-LED mass detection method

Abstract

The invention discloses a non-contact probe-free Nano-LED / Micro-LED mass detection method. The method is suitable for a mass detection device. The mass detection device comprises a coil power supply module, a Tesla coil module and a to-be-detected light-emitting pixel array module. The method comprises the following steps: placing a light-emitting pixel array module to be detected on an opposite surface of a secondary side coil, and enabling pointed cone-shaped structure ends of light-emitting pixels to face the secondary side coil; the coil power supply module is controlled to supply power, so that the secondary side coil generates a high-frequency alternating electromagnetic field, and each light-emitting pixel point in the high-frequency alternating electromagnetic field generates induced voltage and breaks down air between the light-emitting pixel point and the secondary side coil to generate plasma jet; charges in the plasma jet are injected into the light-emitting pixel points to enable the light-emitting pixel points to be electroluminescent; collecting a light-emitting image of the light-emitting pixel array module to be detected; and determining whether each light-emitting pixel point is qualified or not according to the light-emitting image. Damage to the pixel points in the detection process is avoided, meanwhile, the detection efficiency is improved, and the detection energy consumption is reduced.

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