Smartphone screens will be laser repaired

Vertical or horizontal green line problem is one of the problems experienced in smartphones, regardless of brand and model. Laser repair of OLED panels is a new way of solving display problems. The new machine, which has appeared in China, will help both manufacturers and consumers save money.

New method: laser repair

OLED panels are manufactured using a process called excimer laser annealing (ELA), in which a layer of amorphous silicon is placed and then converted into polycrystalline silicon using a pulsed laser to create microscopic conductive wires that connect all the pixels of the panel. When any part of this complex cable network is damaged, it can cause parts of the screen to malfunction and create visual defects such as a vertical green or pink line.

No need to remove the screen, disconnect the power

Operated by a technician who uses a powerful microscope to analyze the microscopic structure of the OLED, this new machine uses the same laser technology to repair and reshape broken wire traces. Repairs can often be made even when the OLED panel is adhered to under the top layer of protective glass and the panel is operational. In this way, the technician can immediately see whether the repair was successful or not.

Applicable to OLED panels only

Especially in smartphones using OLED panels, the screen is one of the most expensive components, and if it is damaged, it is costly to repair. It should be noted that this machine, which benefits both the manufacturer and the consumer, does not repair all screens with cracks or scratches. The repair process can only be applied to OLED panels.