Display Device Electrostatic Induction Patterns Sensing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices with input sensing panels face challenges in achieving high sensing sensitivity, particularly due to variations in mutual capacitances between sensing electrodes, which can lead to malfunctions and reduced performance.
Innovation Solution
The display device incorporates an input sensing panel with a specific configuration of first and second sensing electrodes and electrostatic induction patterns. The panel is divided into areas with varying mutual capacitance deviations, where the electrostatic induction patterns are strategically placed to compensate for these deviations, enhancing sensing sensitivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensing electrodes are arranged in a conventional configuration, then the device structure remains simple, but sensing sensitivity is insufficient due to variations in mutual capacitances
Solution Approach 1:
Electrostatic induction patterns are introduced as intermediary elements between the first and second sensing electrodes. These patterns mediate the capacitive coupling by providing additional electrostatic induction pathways, thereby compensating for mutual capacitance variations and enhancing sensing sensitivity without fundamentally redesigning the electrode arrangement
Solution Approach 2:
The patent modifies the electrical parameters of the sensing system by introducing electrostatic induction patterns that alter the capacitive characteristics. By changing the electrostatic field distribution through these patterns, the mutual capacitance values are adjusted to achieve more uniform sensing performance across different regions of the display device
2Measurement precision
If uniform sensing performance is achieved across all areas, then sensing sensitivity increases, but the number of electrostatic induction patterns and their complexity increase
Solution Approach 1:
The patent applies local quality by differentiating the configuration of electrostatic induction patterns based on regional requirements. First electrostatic induction patterns are disposed in a first area while second electrostatic induction patterns are disposed in a second area, with each region's patterns optimized for its specific mutual capacitance characteristics, thereby achieving uniform sensing performance without excessive overall complexity
Solution Approach 2:
The input sensing panel is segmented into multiple areas (first area and second area) with different electrostatic induction pattern configurations. This segmentation allows each region to be optimized independently for its specific sensing requirements, managing complexity by dividing the problem into manageable regional units rather than applying a uniform complex design across the entire 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 effectively increases the sensing sensitivity of the display device by compensating for variations in mutual capacitances, thereby reducing malfunctions and improving overall performance.
Implementation Method 1
a plurality of electrostatic induction patterns, each of which is connected to a sensing electrode from one of the pluralities of first and second sensing electrodes and overlaps another sensing electrode from the other one of the pluralities of first and second sensing electrodes
Data Source
AI summary
A display device includes a display panel and an input sensing panel. The input sensing panel includes pluralities of first and second sensing electrodes and electrostatic induction patterns, each of which is connected to a sensing electrode from one of the pluralities of sensing electrodes and overlaps another sensing electrode from the other one of the pluralities of sensing electrodes. The input sensing panel includes a first area where deviations of mutual capacitances between the first and second sensing electrodes are small and a second area where the deviations are large. The electrostatic induction patterns include first electrostatic induction patterns disposed in the first area and second electrostatic induction patterns disposed in the second area, the second electrostatic induction patterns having a different area from the first electrostatic induction patterns, or the number of second electrostatic induction patterns being different from the number of first electrostatic induction patterns.