Resin Buffer Layer for Electronic Paper Impact Protection
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Solution Overview
Problem
Electronic paper display devices lack a buffer structure between the display panel substrate and the TFT array substrate, leading to direct force transmission and potential damage to the thin film transistors when the display panel is hit.
Innovation Solution
An additional resin layer is formed between the display panel substrate and the TFT array substrate to act as a buffer, dispersing force and protecting the thin film transistors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the display panel substrate is adhered directly to the TFT array substrate without a buffer structure, then the device structure is simpler and manufacturing is easier, but the thin film transistors in the TFT array substrate are vulnerable to damage when the display panel substrate is hit
Solution Approach 1:
A resin layer is introduced as an intermediary buffer structure between the display panel substrate and the TFT array substrate. This resin layer absorbs and disperses impact forces, preventing direct transmission to the thin film transistors while maintaining the overall structural integrity and simplicity of the device
Solution Approach 2:
The resin layer is pre-formed between the substrates before final assembly, creating a cushioning effect that is already in place to protect against future impacts. This proactive protection approach ensures the thin film transistors are shielded from damage before any impact event occurs
2Reliability
If a resin layer is added between the display panel substrate and the TFT array substrate, then the protection against impact damage is improved, but the device structure becomes more complex
Solution Approach 1:
The resin layer is implemented as a thin, flexible film that provides protective functionality without significantly increasing the overall device thickness or structural complexity. This thin film approach maintains device simplicity while delivering the required impact protection
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
The resin layer effectively reduces the impact of hits on the TFT array substrate, preventing damage to the thin film transistors by absorbing and dispersing the force.
Implementation Method 1
The resin layer acts as a buffer layer to disperse force from the display panel substrate to protect the TFT array substrate
Data Source
AI summary
This present invention provides an electronic paper display device. The electronic paper display device includes a thin film transistor array substrate and a display panel disposed on one side of the thin film transistor array substrate. The thin film transistor array substrate comprises a first substrate, a first metal layer, a dielectric layer, a second metal layer, a channel layer, a pixel electrode layer, a protection layer, a first resin layer and a second resin layer. The display panel includes a second substrate, a transparent electrode layer disposed on the second substrate, and an electronic ink material layer between the transparent electrode layer and the thin film transistor array substrate.