Touch Display Panel Circuit Integration for Multifunction Sensing
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Solution Overview
Problem
Existing display panels with touch detection functions lack multifunctionality, as they do not effectively integrate advanced touch detection capabilities beyond basic functionality.
Innovation Solution
The integration of drive electrodes and touch detection electrodes within a chip, along with a drive circuit and control section, enables the application of drive signals and detection of touch events, allowing for enhanced touch detection functionality and power control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If drive electrodes and touch detection electrodes are integrated within a chip, then the circuit area is reduced and multifunctionality is enhanced, but the device complexity increases
Solution Approach 1:
The patent integrates the drive electrode drive section and touch detection electrode drive section into a single chip, merging previously separate functions into one unified component. This consolidation reduces the overall circuit area while managing complexity through integrated design architecture.
Solution Approach 2:
The chip is designed to perform multiple functions simultaneously - driving both drive electrodes and touch detection electrodes. This multi-functionality allows a single component to replace what would traditionally require separate components, reducing total circuit area while enhancing the device's capabilities.
2Adaptability or versatility
If more functions related to touch detection are added to the display panel, then the multifunctionality is enhanced, but the device complexity increases
Solution Approach 1:
The drive circuit chip is designed with universal functionality to handle both drive electrode control and touch detection electrode control. This multi-functional design allows the system to perform multiple touch detection functions without adding proportionally more separate components, thereby enhancing versatility while controlling complexity.
Solution Approach 2:
Multiple touch detection functions are merged into a single integrated chip rather than using separate components for each function. This consolidation allows the system to achieve multifunctionality while reducing the overall device complexity compared to having separate dedicated circuits for each function.
3Area of stationary object
If the electrode drive section is integrated into a chip, then the circuit area is reduced, but the manufacturing precision requirements increase
Solution Approach 1:
The integration of multiple drive functions into a single chip reduces the overall circuit area. However, this consolidation necessitates higher manufacturing precision to ensure proper functioning of the integrated components, as tighter tolerances are required for the interconnected circuits and signal paths within the compact chip architecture.
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 enables more complex touch detection scanning and intricate power supply control, reducing the circuit area and allowing for more functions per unit area, thus enhancing the multifunctionality of the display panel.
Implementation Method 1
one or more drive electrodes extending in one direction; an electrode drive section integrated into a chip, and applying a drive signal to the drive electrodes
Implementation Method 2
one or more touch detection electrodes extending in a direction intersecting the direction in which the drive electrodes extend
Data Source
AI summary
There are provided a display panel with a touch detection function, a drive circuit, and an electronic unit, which make it possible to realize many functions related to touch detection. The display panel includes: one or more display elements; one or more drive electrodes extending in one direction; an electrode drive section integrated into a chip, and applying a drive signal to the drive electrodes; and one or more touch detection electrodes extending in a direction intersecting the direction in which the drive electrodes extend.