Display device

By setting a nanoparticle layer in the display device, the surface-modified nanoparticles with hydrophobic functional groups are used to suppress water penetration and hydrogen diffusion, thus solving the problems of oxidation and decreased conductivity of the gate driver and improving the reliability and driving characteristics of the display device.

CN116347929BActive Publication Date: 2026-06-23LG DISPLAY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
LG DISPLAY CO LTD
Filing Date
2022-12-23
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In the prior art, problems exist such as oxidation or degradation of the gate driver caused by moisture penetration and decreased conductivity due to hydrogen diffusion generated during the deposition process, especially in gate drivers using oxide semiconductor thin film transistors.

Method used

A nanoparticle layer is set in the display device, and the surface-modified nanoparticles with hydrophobic functional groups are used to suppress water penetration and prevent hydrogen diffusion to the gate driver during the deposition of the encapsulation layer. The nanoparticle layer overlaps with the gate driver by setting the opening of the planarization layer.

Benefits of technology

This improves the reliability and driving characteristics of the display device, prevents the degradation of gate driver performance due to moisture penetration and hydrogen diffusion, and achieves high reliability and excellent driving characteristics.

✦ Generated by Eureka AI based on patent content.

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    Figure CN116347929B_ABST
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Abstract

The present disclosure relates to a display device. The display device includes a substrate in which a display area and a non-display area are defined, a thin film transistor disposed on the substrate corresponding to the display area, a gate driver disposed on the substrate corresponding to the non-display area, a protection layer disposed to cover the thin film transistor and the gate driver, a planarization layer disposed on the protection layer and including a plurality of openings exposing at least a portion of the protection layer in the non-display area, an organic light emitting diode disposed on the planarization layer so as to be electrically connected to the thin film transistor in the display area, and a nanoparticle layer disposed above the protection layer overlapping the plurality of openings. The nanoparticle layer includes nanoparticles surface-modified with a hydrophobic functional group.
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