Driving substrate, preparation method thereof and display panel

By designing an electrode pattern with a slope-climbing region in the first electrode layer of the driving substrate and forming the second and third electrode layers, the problem of falling off of the transparent electrode layer caused by metal stress is solved, and the capacitance value of the double-layer capacitor and the competitiveness of the product are improved.

CN119689756AActive Publication Date: 2025-03-25HEFEI BOE OPTOELECTRONIC TECH CO LTD +1
14 Cites 0 Cited by

Patent Information

Application Number
CN202411866851.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-03-25
Estimated Expiration
2044-12-17

AI Technical Summary

Technical Problem

The three-layer metal electrode in the existing dual-capacitance design adopts a block-shaped surface structure, which leads to the accumulation of metal stress in the pixel electrode and causes the problem of the transparent electrode layer falling off.

Method used

A driving substrate is designed, wherein the first electrode layer has a plurality of first electrode patterns having the first slope climbing region are arranged at intervals in the capacitor region, and a second electrode layer and a third electrode layer are formed on the first electrode pattern, and the overlap area between the electrode layers is increased by using the slope climbing structure of the first electrode pattern.

Benefits of technology

By increasing the overlap area between the electrode layers, the capacitance value of the double-layer capacitor is effectively increased, the stress of the metal electrode is released, the problem of transparent electrode layer falling off, and the competitiveness of the product is enhanced.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention provides a driving substrate, a preparation method thereof and a display panel, and relates to the technical field of display, the driving substrate comprises a switch area and a capacitor area arranged on at least one side of the switch area, and the driving substrate comprises a substrate; the first electrode layer, the second electrode layer and the third electrode layer are sequentially arranged on one side of the substrate in a stacked mode, the first electrode layer is arranged close to the substrate, the orthographic projection of the second electrode layer and the orthographic projection of the first electrode layer on the substrate are at least partially overlapped, and the orthographic projection of the third electrode layer and the orthographic projection of the second electrode layer on the substrate are at least partially overlapped; wherein the first electrode layer comprises a plurality of first electrode patterns which are arranged in the capacitor region at intervals, each first electrode pattern comprises a first climbing region, the thickness of the first electrode pattern in the first climbing region is gradually reduced along a first direction, and the first direction is a direction from the central region of the first electrode pattern to the edge of the first electrode pattern.
Need to check novelty before this filing date? Find Prior Art