Display Device Input Sensing Panel Barrier Ribs Scratch Resistance
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Solution Overview
Problem
Current display devices face challenges in enhancing product reliability, particularly in the design of input sensing panels, where the integration of sensing electrodes and connecting lines can lead to issues such as scratch resistance and reliability due to the proximity and potential contact of these components.
Innovation Solution
The proposed display device incorporates an input sensing panel with a base substrate, conductive layers, sensing insulation layers, and barrier ribs, where the barrier ribs are made of insulating material and alternate with connecting lines, and the conductive layers include a metallic material for improved scratch resistance and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If connecting lines are placed close to sensing electrodes to reduce space, then area is reduced, but scratch resistance and reliability deteriorate due to potential contact during scratches
Solution Approach 1:
The patent introduces an insulating layer as an intermediary substance between the connecting lines and sensing electrodes. This insulating layer prevents direct contact between conductive components during scratches while allowing the components to remain in close proximity, thus maintaining small area while improving scratch resistance and reliability.
2Manufacturing precision
If connecting lines are positioned to minimize distance between components, then manufacturing precision requirements are reduced, but reliability worsens due to increased risk of contact during deformation
Solution Approach 1:
The insulating layer serves as a mediator that allows connecting lines to be positioned closer to sensing electrodes without compromising reliability. The insulating material provides a physical barrier that prevents conductive contact even when components are in close proximity or subjected to deformation during scratching.
3Reliability
If barrier ribs are added between connecting lines to prevent contact, then scratch resistance is improved, but device complexity increases
Solution Approach 1:
The patent merges the insulating layer with existing structural elements of the input sensing panel. The insulating layer is integrated into the panel's construction, combining the protective function with the structural framework, thereby reducing overall device complexity compared to adding separate barrier ribs.
Solution Approach 2:
The insulating layer serves multiple functions simultaneously: it provides electrical insulation between conductive components, acts as a protective barrier during scratches, and integrates with the structural framework of the panel. This multi-functionality reduces the need for additional separate components, thereby reducing device complexity.
Data Source
AI summary
A display device including a display panel, and an input sensing panel on the display panel, the input sensing panel including an active region and an inactive region adjacent to the active region, the input sensing panel including a base substrate, a first conductive layer on the base substrate, the first conductive layer including a plurality of sensing parts, a connecting part electrically connected to the plurality of sensing parts, and a plurality of sensing patterns, a first sensing insulation layer in the active region and configured to cover the first conductive layer, a plurality of connecting lines in the inactive region and electrically connected to the first conductive layer, and barrier ribs in the inactive region and between the plurality of connecting lines.