Discharge Element Substrate Layout for Lower Wiring Voltage Drop
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Solution Overview
Problem
Existing discharge element substrates suffer from energy inefficiency due to voltage drop caused by wiring resistance, which affects the uniformity of electric energy supplied to heaters.
Innovation Solution
The discharge element substrate is designed with a common first electrode connected to a plurality of discharge elements along a direction, featuring a selection circuit to select any one element and a second electrode to apply voltage, with power supply and ground electrodes arranged to minimize wiring resistance by being disposed near the discharge elements and using plane wiring to reduce voltage drop.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If wiring is provided to connect power supply electrode to discharge elements, then electric energy can be supplied to heaters, but wiring resistance causes voltage drop and energy loss
Solution Approach 1:
The substrate is divided into multiple electrode regions, with each discharge element or group of elements connected to dedicated power supply and ground electrodes. This segmentation reduces the wiring length for each element, minimizing wiring resistance and voltage drop while maintaining overall energy efficiency.
Solution Approach 2:
Power supply electrodes and ground electrodes are strategically positioned near specific discharge elements based on their individual requirements. This local optimization ensures that each element receives power through the shortest possible wiring path, reducing voltage drop and improving energy efficiency for each element.
2Quantity of substance
If discharge elements are arranged along a direction, then multiple elements can be integrated, but wiring length increases causing higher wiring resistance
Solution Approach 1:
The power supply and ground electrode connections are extracted from the conventional linear wiring arrangement. By providing dedicated electrode regions that connect directly to discharge elements, the invention eliminates the need for long sequential wiring paths, reducing wiring length while supporting multiple elements.
Solution Approach 2:
The electrode arrangement transitions from a one-dimensional linear wiring approach to a two-dimensional or three-dimensional electrode distribution. Power supply and ground electrodes are positioned in multiple locations across the substrate, enabling shorter wiring paths to discharge elements arranged along a direction.
3Manufacturing precision
If uniform electric energy is supplied to all heaters, then printing quality improves, but wiring resistance makes this difficult over long distances
Solution Approach 1:
Power supply electrodes and ground electrodes are pre-positioned at optimal locations near each discharge element during substrate fabrication. This preliminary arrangement ensures that when electrical energy is applied, it reaches each element uniformly and efficiently, eliminating the need for complex compensation wiring and ensuring consistent printing quality.
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 improves the efficiency of energy delivery to discharge elements, reducing voltage drop and enhancing the overall performance of the discharge element substrate.
Implementation Method 1
a discharge element configured to discharge liquid housed in a liquid chamber from a discharge port by energy generated by an energy element provided to a substrate
Implementation Method 2
a first electrode configured to apply voltage to the plurality of discharge elements
Implementation Method 3
a second electrode configured to apply voltage to the discharge element selected by the selection circuit such that the discharge element is caused to discharge liquid
Data Source
AI summary
Provided is a discharge element substrate, including: a plurality of discharge elements configured to discharge liquid housed in a liquid chamber from a discharge port by energy generated by an energy element provided to a substrate; a first electrode configured to apply voltage to the plurality of discharge elements; a selection circuit configured to select any one of the plurality of discharge elements; and a second electrode configured to apply voltage to the discharge element selected by the selection circuit such that the discharge element is caused to discharge liquid. The plurality of discharge elements are arranged along a first direction. The first electrode is connected to the plurality of discharge elements in common along the first direction of the substrate.