Capacitive Electrode Waveform Modulation in Display Control Substrates
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Solution Overview
Problem
Conventional electronic apparatuses face increased manufacturing and development costs due to the need for separate signal generators and design changes in control substrates to modulate waveforms of input or output signals, which is costly and inefficient.
Innovation Solution
An electronic apparatus with an integrated electronic circuit that uses a capacitive electrode overlapping with a conductive film to form a capacitance, allowing for waveform modulation without additional components or design changes, thereby reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate signal generator is provided to modulate waveform of input or output signal, then waveform modulation capability is achieved, but manufacturing cost increases
Solution Approach 1:
The patent merges the waveform modulation function with the existing control substrate by integrating a capacitance element directly into the substrate structure. The capacitance is formed using conductive films and insulating layers that are already part of the control substrate's multi-layer construction, eliminating the need for a separate signal generator while maintaining waveform modulation capability.
Solution Approach 2:
The control substrate is designed to serve multiple functions: it provides signal routing through its conductive films, structural support through its layered construction, and waveform modulation through the integrated capacitance element. This multi-functionality allows the same component to replace both the original control substrate and the separate signal generator.
2Adaptability or versatility
If capacitance is additionally provided to control substrate to modulate waveform, then waveform modulation capability is achieved, but development cost increases due to design changes
Solution Approach 1:
The capacitance element is merged into the existing control substrate architecture by utilizing the substrate's conductive films and insulating layers. The capacitance is formed between conductive films in different layers of the substrate, seamlessly integrating the modulation function into the existing design without requiring separate components or major redesign.
Solution Approach 2:
The capacitance is implemented in the vertical dimension of the multi-layer substrate structure, using conductive films separated by insulating layers. This three-dimensional arrangement allows capacitance integration without increasing the planar footprint or complicating the two-dimensional routing layout of the control substrate.
3Adaptability or versatility
If separate signal generator is prepared, then waveform modulation is achieved, but device complexity increases
Solution Approach 1:
The waveform modulation function is merged into the control substrate by forming a capacitance element using the substrate's existing conductive films and insulating layers. This integration reduces device complexity by eliminating the separate signal generator and its associated connections, while maintaining the ability to modulate input or output signal waveforms.
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 cost-effective waveform modulation by utilizing existing production processes and components, reducing the need for separate signal generators and design alterations, while allowing for easy adjustment of capacitance values for precise modulation.
Implementation Method 1
a capacitive electrode electrically connected to the input/output signal wiring, the capacitive electrode being formed so as to overlap at least partially with a projection plane of the conductive film
Data Source
AI summary
A display device as an electronic apparatus in accordance with the present invention includes a clock signal wiring (104) for connecting to a source driver circuit; a power supply wiring (105) formed at a position where the power supply wiring (105) does not overlap with a projection plane of the clock signal wiring (104), so as to sandwich at least an insulating layer with a layer in which the clock signal wiring (104) is formed; and a capacitive electrode (109) electrically connected to the clock signal wiring (104). The capacitive electrode (109) is formed so as to overlap at least partially with a projection plane of the power supply wiring (105). A capacitance (301) is formed between the capacitive electrode (109) and the power supply wiring (105).