Electronic Ink Screen With Nano-Electrode Friction Touch
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Solution Overview
Problem
Current electronic paper systems experience display delays and high energy consumption when integrating a touch screen for writing functionality.
Innovation Solution
An electronic ink screen comprising a display module, a control module, and a circuit module, where the control module uses nano-electrode microstructures for converting touch signals into electric signal changes in pixel units, and the circuit module supplies power to restore the display module to its initial state, leveraging nano friction power generation to reduce energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a touch screen is integrated on a liquid crystal display to add writing function, then writing functionality is achieved, but display delay occurs and energy consumption increases
Solution Approach 1:
The patent extracts the touch sensing function from the traditional liquid crystal display system and implements it independently on the electronic ink screen using a separate electrode structure. This allows the touch writing function to operate independently without relying on the liquid crystal display's processing system, thereby eliminating display delay while maintaining writing functionality.
Solution Approach 2:
The patent introduces an intermediary electrode structure with conductive layers and insulating layers that mediates between the user's touch input and the electronic ink display. This intermediary structure enables direct detection of writing gestures on the electronic ink screen surface, converting mechanical touch into electrical signals without requiring liquid crystal display intervention, thus resolving the display delay issue.
2Adaptability or versatility
If a touch screen is integrated on a liquid crystal display to add writing function, then writing functionality is achieved, but energy consumption increases
Solution Approach 1:
The patent extracts the touch sensing function from the power-intensive liquid crystal display system and implements it as a separate, low-power component on the electronic ink screen. The electrode structure uses minimal power for detecting touch gestures, and the electronic ink itself consumes power only when updating displays, not during static viewing or touch detection, thereby significantly reducing overall energy consumption while maintaining writing functionality.
Solution Approach 2:
The electrode structure is designed to detect touch inputs passively without requiring continuous power supply for active sensing. The structure utilizes the inherent electrical properties of the electronic ink screen layers to detect writing gestures, enabling the system to perform touch sensing functions with minimal external power input, thus reducing energy consumption while maintaining writing capability.
3Stability of the object's composition
If continuous power is supplied to maintain display state, then display stability is maintained, but energy consumption increases
Solution Approach 1:
The patent implements periodic refresh cycles for the electronic ink display rather than continuous power supply. The display updates only when necessary (when new writing content is detected or when transitioning between states), allowing the electronic ink to maintain its displayed state passively between refresh cycles. This periodic updating mechanism maintains display stability while dramatically reducing energy consumption compared to continuous power supply.
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 solution enables real-time writing without display delays and reduces energy consumption by only using power when the electronic ink deflects, allowing for efficient writing tracking without additional power consumption.
Implementation Method 1
the first nano electrode and the second nano electrode are arranged at intervals and configured to be in mutual friction contact under the touch signal applied from the outside for charge transferring
Data Source
AI summary
An electronic ink screen and a method for manufacturing the same are provided. The electronic ink screen includes: a display module including pixel units configured to display by using electronic ink; and a control module configured to convert a touch signal applied from outside into a change of electric signal of corresponding one or more pixel units through an electrode microstructure, so that a display state of the corresponding one or more pixel units is changed from an initial state; the electrode microstructure includes sub-electrode microstructures, each sub-electrode microstructure includes a first nano electrode and a second nano electrode which are made of different materials, the first nano electrode and the second nano electrode are arranged at intervals and configured to be in mutual friction contact in response to that the touch signal applied from the outside is received, so as to generate charge transferring.