Electronic Paper Writing Device Separating Circuitry From Tags
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Solution Overview
Problem
Current electronic paper tags with integrated circuit modules are costly and not suitable for situations where tag information is not frequently updated, such as doorplates and merchandise price labels.
Innovation Solution
A writing device for electronic paper that includes an array substrate, a master control module, an input module, a position sensing module, and an array substrate driving module, allowing for independent writing of electronic paper without the need for frequent updates, with the device being separable from the electronic paper after writing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electronic paper tags include integrated circuit modules for independent data reception and display, then the tags can function independently as information communication media, but the system cost increases significantly
Solution Approach 1:
The patent extracts the circuit module functionality from the electronic paper tag and places it in a separate writing device. The electronic paper tag retains only the display function, while the writing device handles data processing, communication, and control. This separation allows tags to be manufactured at low cost without integrated circuits, while the writing device provides the necessary intelligence for multiple tag operations.
Solution Approach 2:
The writing device is designed as a universal platform that can write and update multiple different electronic paper tags. Instead of each tag having its own independent circuitry, a single writing device serves multiple tags, performing data reception, processing, and transmission to various tags as needed.
2Productivity
If electronic paper tags have integrated circuit modules for frequent updates, then the tags can be updated dynamically, but the cost is too high for applications like doorplates and price labels where frequent updates are not needed
Solution Approach 1:
The writing device performs preliminary actions by pre-processing data and preparing update content before transferring it to the electronic paper tags. For applications requiring no frequent updates, the tags are written once with the necessary information and can function independently without requiring continuous circuit module operation.
3Ease of operation
If each electronic paper tag is an independent display with communication module, then the tag can receive and display data autonomously, but the device complexity and cost increase
Solution Approach 1:
The writing device acts as an intermediary between the data source and the electronic paper tags. It handles communication protocols, data formatting, and transmission control, allowing the tags to remain simple display devices without complex integrated circuits while still achieving autonomous display functionality.
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
Enables cost-effective and efficient writing of electronic paper tags, reducing overall system costs by allowing multiple electronic papers to be written with a single device, and enabling their use in applications where information does not need frequent updates.
Implementation Method 1
the position sensing module comprises at least one size line made of a conductive material and a position detection controller electrically connected with the master control module, the size line is configured on an upper surface of the array substrate and for dividing the upper surface of the array substrate into regions of respective sizes
Implementation Method 2
Electronic ink involves a display material that can be obtained by encapsulating charged particles of different colors with a micro-capsule technology or a micro-cup technology. Gray scales of display are obtained by applying a voltage to electrodes at two ends of electronic ink for a certain time to drive charged particles so as to control the amount of particles moving towards two ends of the electrodes
Data Source
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AI summary
A writing device for electronic paper includes an array substrate, a master control module, an input module electrically connected with the master control module, and an array substrate driving module electrically connected with the master control module, the array substrate is electrically connected with the array substrate driving module, an upper surface of the array substrate is configured to be electrically connected with electronic paper to be written, the input module is configured to input operation instructions to the master control module, the master control module is configured to control the array substrate driving module to drive the array substrate for performing writing operations according to the operation instructions. An embodiment of the present invention further provides an electronic paper tag system including the electronic paper writing device. Therefore, the writing device and the electronic paper tag system provided in embodiments of the present invention are particularly applicable to situations in which tag information is not required to be updated frequently (for example, doorplate, merchandise price labels).