Integrated Touch Display Substrate Merging Sensor and Pixel Layers
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Solution Overview
Problem
The existing manufacturing methods for touch-sensitive display devices require separate processes for the touch panel and display panel, leading to inefficiencies in time and cost, as well as challenges in integration, resulting in a higher likelihood of defects.
Innovation Solution
A display device design that incorporates a touch sensor and a pixel on separate substrates connected by a conductive member and an inter-bar, with the inter-bar extending between the substrates and along the edges of one substrate, allowing for a single manufacturing process that reduces defects and simplifies integration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate manufacturing processes are used for touch panel and display panel, then each component can be manufactured independently with established processes, but manufacturing time and cost increase, and integration becomes more complex
Solution Approach 1:
The patent combines the touch sensor and display panel into a single integrated structure where the touch sensor is formed on the same substrate as the display panel. This merging eliminates the need for separate manufacturing processes and subsequent integration steps, directly resolving the contradiction by maintaining independent manufacturability through a unified process while dramatically improving productivity.
2Ease of manufacture
If separate manufacturing processes are used for touch panel and display panel, then each component can be manufactured independently, but the integration step increases complexity and defect rate
Solution Approach 1:
The touch sensor and display panel are merged into a single integrated device formed through a unified manufacturing process. The touch sensor electrodes and display pixel electrodes are formed on the same substrate with shared structural elements, eliminating separate integration steps and reducing overall device complexity despite maintaining independent manufacturing capabilities.
3Ease of manufacture
If separate manufacturing processes are used for touch panel and display panel, then each component can be optimized independently, but manufacturing cost and time increase
Solution Approach 1:
The integrated structure allows simultaneous formation of touch sensor and display panel components in a single manufacturing cycle. Multiple functions are achieved through combined process steps rather than sequential operations, maintaining the flexibility to optimize each component's performance while dramatically reducing total manufacturing time.
4Ease of manufacture
If separate manufacturing processes are used for touch panel and display panel, then quality control can be maintained for each component, but defect rate increases due to integration issues
Solution Approach 1:
By forming the touch sensor and display panel in an integrated structure through a unified manufacturing process, the patent eliminates interface defects and integration failures that occur when separate components are assembled. Quality control is maintained through consistent process parameters across all components while reliability improves by removing integration-related failure points.
Data Source
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AI summary
A display device and a method of manufacturing a display device are disclosed. In one aspect, the display devices includes display area configured to display an image, a non-display area adjacent to the display area, and a first substrate having a first side and including a touch sensor in the display area and a touch sensor pad in the non-display area. The display device also includes a second substrate opposite to the first substrate, the second substrate including a pixel in the display area and a connecting pad in the non-display area, and a conductive member configured to electrically connect the touch sensor pad and the connecting pad. An inter-bar is interposed between the first and second substrates and between the first side of the first substrate and the touch sensor pad.