Touch Panel Protrusion Recess Units Reduce Signal Lines
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Solution Overview
Problem
Existing touch panels face challenges with high power consumption and increased bezel width due to numerous signal lines required for high sensitivity, which complicates wiring and FPC bonding.
Innovation Solution
A touch panel design featuring touch control units with protrusion and recess parts that match adjacent units, reducing the number of signal lines needed and incorporating auxiliary units in peripheral regions to enhance sensitivity and simplify wiring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of touch control units is increased to improve sensitivity, then touch sensitivity is improved, but the number of signal lines increases greatly, resulting in excessively wide bezel and increased power consumption
Solution Approach 1:
The patent combines adjacent touch control units into pairs where each unit has a protrusion part and a recess part that match together. This merging approach allows two touch control units to share common signal lines, effectively reducing the total number of signal lines needed while maintaining the sensitivity benefits of having multiple touch control units.
Solution Approach 2:
The protrusion and recess structures enable touch control units to serve multiple functions: they provide touch sensing capability while also acting as interconnect elements that share signal lines with adjacent units. This multi-functionality reduces the dedicated wiring infrastructure needed.
2Measurement precision
If the number of touch control units is increased to improve sensitivity, then touch sensitivity is improved, but power consumption increases
Solution Approach 1:
By merging adjacent touch control units into paired structures with matching protrusion and recess parts, the patent reduces the total number of independent signal lines that need to be actively monitored and updated. This consolidation maintains touch sensitivity while reducing the electrical load and power consumption associated with driving numerous individual signal lines.
3Measurement precision
If the number of touch control units is increased to improve sensitivity, then touch sensitivity is improved, but FPC bonding difficulty increases
Solution Approach 1:
The patent merges adjacent touch control units into paired structures that share common signal lines and bonding interfaces. This merging reduces the number of separate FPC bonding operations required, as paired units can be connected through shared pathways rather than requiring individual bonding for each unit, thereby simplifying the manufacturing process.
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
This design improves sensitivity, reduces signal lines, narrows the bezel, and decreases power consumption while maintaining effective touch detection across the display region.
Implementation Method 1
a touch by a human finger may result in a change in a self-capacitance of a corresponding rectangular touch control unit 1, and a corresponding electrical signal is produced therewith
Data Source
AI summary
The present invention belongs to the field of display technology, and provides a touch panel and a display device, which can solve the problem of low sensitivity, complicated wiring, and high power consumption existing in the existing touch panel. The touch panel of the invention includes a substrate and a touch control layer provided on the substrate, the touch control layer comprising a plurality of touch control units, wherein each of the touch control units has a protrusion part and a recess part, wherein a shape of the protrusion part of any one of the touch control units matches with a shape of the recess part of a touch control unit adjacent thereto. The sensitivity of the touch panel provided in the present invention is significantly improved compared to the prior art.