Display device

By stacking repair panels on the display panel and using connecting electrodes and conductive balls to achieve electrical connection, the problem of repairing display panel defects was solved, ensuring the emission efficiency and quality of the display device.

CN115620620BActive Publication Date: 2026-07-21SAMSUNG DISPLAY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SAMSUNG DISPLAY CO LTD
Filing Date
2022-07-06
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively repair defects in display panels that occur during manufacturing or use, especially damage to the emitter layer and common electrode.

Method used

By stacking repair panels on a display panel, electrical connections are achieved using connecting electrodes and conductive balls, and the repair panels are connected to the display panel via laser welding or conductive balls. The repair panel includes a repair substrate, connecting electrodes, repair electrodes, a repair emitting layer, and a repair common electrode, forming a repaired light-emitting element to replace the defective light-emitting element.

Benefits of technology

It enables effective repair of defective areas on the display panel, ensuring the overall emission efficiency and quality of the display device, and preventing defective areas from being visually identified as dark spots.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN115620620B_ABST
    Figure CN115620620B_ABST
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Abstract

A display device includes a display panel and a repair panel overlapping a region of the display panel. The display panel includes a substrate, a plurality of transistors on the substrate, and a first electrode connected to the transistors. The repair panel includes a repair substrate, a plurality of connection electrodes extending through the repair substrate and on opposite surfaces of the repair substrate, a first repair electrode connected to the connection electrodes, a first repair emission layer on the first repair electrode, and a repair common electrode on the first repair emission layer. In a region in which the display panel and the repair panel overlap each other, the first electrode and the first repair electrode are electrically connected to each other through the connection electrodes.
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