Color Filter Substrate Insulating Layer Integration
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Solution Overview
Problem
The existing fabrication methods for capacitive touch screens require a separate process to prepare the interlayer insulating layer between the bridging and connecting portions, leading to high process costs and complexity.
Innovation Solution
A method for forming a color filter substrate where the interlayer insulating layer and color filters are created simultaneously, reducing process steps and costs by using the same material for both, and eliminating the need for a separate spacing pillar, thus integrating the bridging and connecting portions with color filters to maintain electrical insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate process is used to prepare the interlayer insulating layer between the bridging and connecting portions, then electrical insulation is ensured, but process cost and complexity increase
Solution Approach 1:
The patent merges the formation of the interlayer insulating layer with the color filter layer into a single integrated layer. This combining of two separate fabrication processes into one step reduces process complexity and cost while maintaining the electrical insulation function through the inherent insulating properties of the insulating color filter material.
Solution Approach 2:
The interlayer insulating layer is designed to serve multiple functions simultaneously: it provides electrical insulation between conductive layers, acts as a structural support layer, and functions as a color filter for display purposes. This multi-functionality eliminates the need for separate dedicated insulating layers.
2Reliability
If a separate process is used to prepare the interlayer insulating layer, then electrical insulation is ensured, but production cost increases
Solution Approach 1:
The patent merges the formation of the interlayer insulating layer with the color filter layer into a single integrated layer. This combining of two separate fabrication processes into one step reduces process complexity and cost while maintaining the electrical insulation function through the inherent insulating properties of the insulating color filter material.
3Productivity
If the interlayer insulating layer and color filter are formed by the same material, then process steps are reduced, but material functionality must be multi-functional
Solution Approach 1:
The interlayer insulating layer is designed to serve multiple functions simultaneously: it provides electrical insulation between conductive layers, acts as a structural support layer, and functions as a color filter for display purposes. This multi-functionality eliminates the need for separate dedicated insulating layers.
Solution Approach 2:
The patent employs composite material design where the color filter layer incorporates insulating properties alongside its optical filtering capabilities. This allows a single material layer to fulfill both electrical insulation requirements and color filtering functions, thereby improving process efficiency.
Data Source
AI summary
A fabrication method of a color filter substrate, a color filter substrate and a display device are provided. The fabrication method includes forming an interlayer insulating layer and a first color filter group above the conductive pattern, wherein, the first color filter group includes color filter(s) of at least one color, the interlayer insulating layer and the first color filter group are formed by a same material; the interlayer insulating layer is configured to electrically insulate the conductive connecting portion from the conductive bridging portion.