Display Input Sensor Layout for Uniform Touch Sensitivity
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Solution Overview
Problem
Existing electronic apparatuses face non-uniform sensitivity to external inputs across their active regions due to variations in electrode and emission part configurations, leading to inconsistent user input detection.
Innovation Solution
The electronic apparatus is designed with specific electrode and emission part arrangements, including first and second electrodes and conductive patterns, which are spaced and connected differently in various regions to ensure uniform sensitivity across the entire active area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensing electrodes are disposed in the active region of the display panel, then the input sensor can detect external inputs, but the sensitivity is not uniform throughout the entire active region
Solution Approach 1:
The sensing electrode is divided into multiple segments (first sensing electrode segment in the first region, second sensing electrode segment in the second region, and third sensing electrode segment in the third region). Each segment is independently configured with specific patterns and connectivity to achieve uniform sensitivity distribution across the entire active region, resolving the non-uniform sensitivity problem.
Solution Approach 2:
Different regions of the display panel are assigned different sensing electrode configurations. The first region has a first pattern, the second region has a second pattern, and the third region has a third pattern. Each region's electrode structure is optimized locally to provide consistent sensitivity characteristics across the entire active region.
2Device complexity
If the input sensor uses a simple electrode configuration, then the device complexity is reduced, but the sensitivity uniformity across the active region deteriorates
Solution Approach 1:
The sensing electrode is segmented into multiple parts with different patterns disposed in different regions. This segmentation allows the system to achieve uniform sensitivity without requiring an overly complex single-structure electrode design, balancing complexity and performance.
Solution Approach 2:
The multiple sensing electrode segments are electrically connected to form a unified sensing system that functions uniformly across the entire active region. This multi-functional configuration allows different electrode patterns to work together to achieve consistent sensitivity throughout the display panel.
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 configuration provides consistent and uniform sensitivity to external inputs, enhancing user input detection accuracy and reliability across the entire active region of the electronic apparatus.
Implementation Method 1
an input sensor including a first electrode, which is disposed on the first region, a second electrode, which is disposed on the second region
Data Source
AI summary
An electronic apparatus including: an electronic module; a display panel including a first region overlapped with the electronic module and a second region adjacent to the first region, a plurality of first emission parts, which are disposed in the first region and are spaced apart from each other, and a plurality of second emission parts, which are disposed in the second region and are spaced apart from each other; and an input sensor including a first electrode, which is disposed on the first region, a second electrode, which is disposed on the second region, a third electrode, which is disposed on the second region and is electrically disconnected from the second electrode, and a plurality of conductive patterns, which are disposed on the second region, wherein the conductive patterns comprise a first pattern, which is electrically connected to the first electrode, and a second pattern, which is electrically floated.