Touch Display Panel Layout for Full-Area Sensing Around Function Modules
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Solution Overview
Problem
Existing display devices face challenges in integrating touch sensors and touch lines without influencing the structural and functional characteristics of the display panel, particularly when components are relocated from non-active to active areas, which can alter the structure and require new designs for touch sensing.
Innovation Solution
A touch display panel design that includes multiple touch sensor groups and touch lines connected through connecting patterns outside function modules, allowing touch sensing across the entire active area without disrupting the display functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If touch sensors are disposed in the display panel to enable touch sensing, then touch sensing function is improved, but the thickness of the display panel increases and display function is influenced
Solution Approach 1:
The patent combines touch sensor electrodes with display electrode structures, integrating both touch sensing and display functions into shared electrode layers. This merging approach enables touch sensing capability while avoiding additional thickness from separate touch sensor layers.
Solution Approach 2:
The display electrodes are designed to serve dual purposes: displaying images and sensing touches. The same electrode structures perform multiple functions, eliminating the need for dedicated touch sensor components that would increase panel thickness.
2Area of stationary object
If components are relocated from non-active area to active area to expand display area, then active display area is improved, but the structure of active area is changed and requires new design for touch sensing
Solution Approach 1:
The active area is divided into multiple regions with different electrode arrangements. First touch sensor groups are disposed in a predetermined direction while second touch sensor groups are disposed across them, allowing flexible adaptation to expanded active area structures.
Solution Approach 2:
Touch sensor groups are arranged in multiple dimensions and orientations within the active area. First touch sensor groups extend in one direction while second touch sensor groups extend in another direction, enabling comprehensive touch sensing coverage in the expanded active area.
3Adaptability or versatility
If function modules are disposed in the active area, then functionality is improved, but touch sensor arrangement is disrupted in that area
Solution Approach 1:
The patent extracts or removes touch sensor groups from areas occupied by function modules. Touch sensors are selectively disposed only in areas not occupied by function modules, allowing function modules to be placed in the active area without disrupting overall touch sensing capability.
Solution Approach 2:
Different regions of the active area have different electrode arrangements based on local requirements. Areas with function modules have modified or reduced touch sensor presence, while other areas maintain full touch sensor coverage, creating locally optimized structures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables touch sensing throughout the active area while maintaining structural and functional integrity, even with expanded active areas and relocated components, enhancing touch sensitivity and display performance.
Implementation Method 1
sensing a change in a capacitance value that is caused when a user touches the display panel
Data Source
AI summary
Aspects of the present disclosure relate to a touch display panel and a touch display device. In a structure in which a function module is disposed in an active area of a touch display panel, by providing a structure in which touch sensors or touch lines adjacent to the function module are connected through a connecting pattern disposed outside the function module or a sensor connection line disposed in a bezel area of the function module, it is possible to provide a touch sensing function throughout the entire area where images are displayed in a structure including an area, where images are not displayed, such as a function module in an active area.