Touch Display Substrate Edge Region Touch Pattern Design
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Solution Overview
Problem
Touch display products experience poor touch function at special positions like corners due to missing touch patterns, leading to incomplete touch patterns and abnormal touch functions.
Innovation Solution
A touch display substrate with a touch layer comprising first and second touch units, where the second touch units have incomplete touch patterns arranged in the outer edge region, with a specifically designed ratio of touch pattern area to improve touch function by combining or treating second touch units differently based on their pattern integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If touch patterns are completely formed in all regions including corners, then touch function is improved, but manufacturing complexity increases due to difficulty in forming complete patterns at edge positions
Solution Approach 1:
The patent applies local quality by differentiating touch unit designs based on position: inner edge touch units use complete touch patterns while outer edge touch units use incomplete touch patterns. This localized differentiation allows corners and edges to have appropriate touch functionality without requiring complete patterns everywhere, thus improving overall touch function while avoiding the manufacturing complexity associated with forming complete patterns at all edge positions.
Solution Approach 2:
The patent segments touch units into different types based on their location: first touch units with complete touch patterns for inner edge regions, and second touch units with incomplete touch patterns for outer edge regions. This segmentation allows each type to be optimized independently, with incomplete patterns at outer edges reducing manufacturing difficulty while maintaining sufficient touch functionality through the differentiated design.
2Ease of manufacture
If incomplete touch patterns are used at outer edge regions, then manufacturing ease is improved, but touch function deteriorates at corner positions
Solution Approach 1:
The patent applies local quality by designing different touch units for different locations: second touch units with incomplete touch patterns are used at outer edge regions where manufacturing is more difficult, while first touch units with complete touch patterns are used at inner edge regions. This localized differentiation ensures that manufacturing ease is improved at problematic outer edge positions without compromising touch function at inner edge positions where complete patterns can be successfully formed.
Solution Approach 2:
The patent changes the parameter of touch pattern completeness based on location. At outer edge regions, the touch pattern area ratio is set to be less than 100% (incomplete patterns), while at inner edge regions, complete touch patterns with 100% area ratio are used. This parameter change allows optimization of manufacturing ease at outer edges while preserving touch function at inner edges.
3Ease of manufacture
If uniform touch patterns are used across all regions, then manufacturing process is simplified, but touch function becomes inconsistent across different positions
Solution Approach 1:
The patent applies local quality by implementing position-dependent touch unit designs: first touch units with complete touch patterns for inner edge regions and second touch units with incomplete touch patterns for outer edge regions. This localized differentiation ensures touch function consistency across all positions by optimizing each region's touch unit design according to its specific manufacturing challenges, rather than using a uniform design that would fail at difficult-to-manufacture outer edge positions.
Solution Approach 2:
The patent segments the touch display panel into different touch unit types based on position: inner edge touch units with complete patterns and outer edge touch units with incomplete patterns. This segmentation allows the manufacturing process to be optimized for each segment's specific requirements, ensuring consistent touch function across all regions while maintaining practical manufacturability at each position.
Data Source
AI summary
The present disclosure provides a touch display substrate, a manufacturing method thereof, and a display device. The touch display substrate includes a base substrate and a touch layer, the touch layer includes a plurality of touch units, the plurality of touch units includes a plurality of first touch units with complete touch patterns and a plurality of second touch units with incomplete touch patterns, at least a part of the plurality of second touch units is arranged in an outer edge region of the touch layer, a ratio of an area of the touch pattern of the second touch unit to an area of the touch pattern of the first touch unit is greater than 0 and less than or equal to a first threshold, and/or greater than or equal to a second threshold and less than 100%, and the first threshold is less than the second threshold.