Flexible Display Circuit Board With Integrated Capacitive Electrodes
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Solution Overview
Problem
Existing electrical hand-held devices face complexity in integrating capacitive sensor devices due to separate production and complex connection requirements of electrodes with the main circuit board, which complicates the manufacturing process.
Innovation Solution
A display circuit board with flexible sections that incorporate electrodes coupleable with capacitive sensor devices, allowing for integrated production and simplified connection within the display module, eliminating the need for separate electrode production and complex soldering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electrodes are produced separately and connected to the main circuit board, then the capacitive sensor device can be integrated into the hand-held device, but the manufacturing process becomes complex and time-consuming
Solution Approach 1:
The patent combines the electrodes with the display circuit board into a single integrated structure. The circuit board contains both the display driving electrodes and the capacitive sensor electrodes, eliminating the need for separate electrode production and assembly. This merging of components directly resolves the technical contradiction by maintaining integration capability while significantly reducing manufacturing process complexity.
Solution Approach 2:
The display circuit board is designed to serve multiple functions: it drives the display and simultaneously functions as the capacitive sensor electrode structure. This multi-functionality allows the same component to fulfill both display control and touch sensing roles, thereby integrating the capacitive sensor device without adding separate electrode assemblies and simplifying the overall manufacturing process.
2Adaptability or versatility
If separate electrodes are connected to the main circuit board, then the capacitive sensor device can be integrated, but additional electrode arrangement in the device housing is required
Solution Approach 1:
The circuit board integrates the electrodes directly into its structure, combining the display driving function with the capacitive sensing function. This eliminates the need for separate electrode arrangement in the device housing, as the electrodes are already positioned and connected on the circuit board itself, thereby improving ease of manufacture while maintaining integration capability.
3Adaptability or versatility
If complex soldering is used to connect electrodes to the main circuit board, then the capacitive sensor device can be integrated, but the manufacturing time and complexity increase
Solution Approach 1:
The electrodes are manufactured as an integral part of the circuit board structure, eliminating the need for separate soldering operations. This merging of the electrode fabrication into the circuit board manufacturing process directly improves productivity by reducing the number of manufacturing steps, while still achieving full integration capability of the capacitive sensor device.
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 approach simplifies the manufacturing of electrical hand-held devices by integrating capacitive sensor electrodes into the display circuit board, enabling efficient approximation, touch, and gesture detection without additional electrode arrangement in the device housing.
Implementation Method 1
the capacitive sensor device comprises at least one electric circuit being configured to determine the capacitance at the electrode
Data Source
AI summary
A display circuit board is provided with at least one section being configured as flexible circuit board, wherein the at least one flexible section of the display circuit board has at least one electrode being coupleable with a capacitive sensor device. Furthermore, a display module is provided with a display and a display circuit board. In addition, a method for the production of a display module is provided, wherein the display circuit board is inserted in a module housing together with the display in such a way that the flexible section is at least partially arranged between a side wall of the display and a side wall of the module housing. Finally, an electrical hand-held device, such as a cell phone or the like, is provided with a display module.