Integrated Touch Layer Layout for Thinner Display Panels
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing OLED display panels face issues of large overall thickness and complicated manufacturing processes due to the integration of electromagnetic touch functions.
Innovation Solution
A display panel design incorporating a touch layer with capacitive and electromagnetic touch parts arranged in a cross manner, where capacitive touch channels are insulated from adjacent electromagnetic touch channels, allowing both types of touch functions without interference and reducing thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an electromagnetic coil layer is added to the display panel to achieve electromagnetic touch function, then electromagnetic touch capability is improved, but the overall thickness increases and manufacturing process becomes complicated
Solution Approach 1:
The patent merges the electromagnetic touch layer and capacitive touch layer into a single integrated touch structure. The electromagnetic touch channels and capacitive touch channels are formed in the same touch layer, sharing common structural elements and manufacturing processes, thereby achieving electromagnetic touch capability without significantly increasing overall thickness or complicating the manufacturing process
Solution Approach 2:
The touch layer is designed to serve multiple functions simultaneously: it provides both electromagnetic touch detection capability and capacitive touch detection capability. The same touch layer structure performs dual touch functions, eliminating the need for separate electromagnetic coil layers and reducing overall panel thickness
2Adaptability or versatility
If an electromagnetic coil layer is added to the display panel to achieve electromagnetic touch function, then electromagnetic touch capability is improved, but the manufacturing process becomes complicated
Solution Approach 1:
The patent merges the electromagnetic touch layer and capacitive touch layer into a single integrated touch structure. The electromagnetic touch channels and capacitive touch channels are formed in the same touch layer, sharing common structural elements and manufacturing processes, thereby achieving electromagnetic touch capability without significantly increasing overall thickness or complicating the manufacturing process
Solution Approach 2:
The touch layer is designed to serve multiple functions simultaneously: it provides both electromagnetic touch detection capability and capacitive touch detection capability. The same touch layer structure performs dual touch functions, eliminating the need for separate electromagnetic coil layers and reducing overall panel thickness
3Reliability
If capacitive touch channels are placed between electromagnetic touch channels, then signal interference is avoided, but the touch channel arrangement becomes more complex
Solution Approach 1:
The touch layer is segmented into distinct electromagnetic touch channels and capacitive touch channels that are spatially separated. Capacitive touch channels are positioned between electromagnetic touch channels, creating clear spatial segmentation that prevents signal interference while maintaining an organized and systematic arrangement pattern
Solution Approach 2:
The patent uses spatial arrangement in the planar dimension to separate different touch signal types. By positioning capacitive touch channels between electromagnetic touch channels in the lateral direction, the design prevents signal interference through spatial separation without requiring additional vertical layers, thus managing complexity through dimensional arrangement
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
The design achieves a thinner display panel with simplified manufacturing, enabling both electromagnetic and capacitive touch capabilities without signal interference.
Implementation Method 1
a capacitive touch part including a plurality of first capacitive touch channels arranged at intervals in a first direction and a plurality of second capacitive touch channels arranged at intervals in a second direction
Implementation Method 2
an electromagnetic touch part including a plurality of first electromagnetic touch channels arranged at intervals in the first direction and a plurality of second electromagnetic touch channels arranged at intervals in the second direction
Data Source
AI summary
The present disclosure provides a display panel and a display device. A touch layer of the display panel includes: a capacitive touch part including first capacitive touch channels and second capacitive touch channels which are arranged in a cross manner, and an electromagnetic touch part including first electromagnetic touch channels and second electromagnetic touch channels which are arranged in a cross manner. The first capacitive touch channels are insulated between two adjacent first electromagnetic touch channels, and each of the second capacitive touch channels is disposed between and insulated from two adjacent second electromagnetic touch channels.