Foldable Display Device with Detachable Driver
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Solution Overview
Problem
Current flexible display devices lack a portable and efficient mechanism to transition between folded and unfolded states while maintaining a large-area display functionality.
Innovation Solution
A display device with a foldable substrate and a detachable driving unit, featuring signal transmission pads and a motion sensor, allowing for flexible coupling configurations that enable both portable and large-area display modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display substrate is made foldable to improve portability, then the device can be carried more easily, but the display area is reduced when folded
Solution Approach 1:
The display substrate is divided into multiple segments that can be folded along specific folding lines. The display area is segmented into first and second display areas that can be independently positioned, allowing the device to maintain a large total display area while being foldable for portability.
Solution Approach 2:
The display substrate transitions from a static flat structure to a dynamic foldable structure. The folding mechanism allows the display area to dynamically change its spatial configuration between unfolded (large area) and folded (portable) states, adapting to different usage scenarios.
2Adaptability or versatility
If a detachable driving unit is used to improve portability and flexibility, then the device can be configured in different modes, but the connection reliability between components is reduced
Solution Approach 1:
The driving unit is separated from the display substrate into an independent detachable component. This segmentation allows the driving unit to be connected or disconnected based on usage needs, providing configuration flexibility while maintaining reliable connections through dedicated coupling structures.
Solution Approach 2:
A coupling structure with connectors serves as an intermediary between the display substrate and the driving unit. This intermediary component ensures reliable electrical and mechanical connections while allowing the driving unit to be detachably coupled, balancing connection reliability with configuration flexibility.
3Reliability
If pads are placed at the folding line to transmit signals, then signal transmission is maintained during folding, but the pads are more susceptible to damage or disconnection
Solution Approach 1:
Pads are pre-positioned at strategic locations near the folding lines on the display substrate. These pads are arranged in advance to ensure continuous signal transmission paths are maintained even when the substrate is folded, preventing signal interruption before it can occur.
Solution Approach 2:
The coupling structure with connectors acts as an intermediary that protects and secures the pads at the folding lines. This intermediary component provides mechanical support and stable electrical connection, reducing the susceptibility of pads to damage while maintaining signal transmission reliability during folding operations.
Data Source
AI summary
A display device includes: a display substrate configured to be folded along a folding line; a driver detachably coupled to the display substrate; and a pad on at least one surface of the display substrate, the pad being configured to transmit a plurality of signals received from the driver to the display substrate, wherein the driver comprises an integrated circuit configured to supply the signals, a coupling portion configured to couple the driver to the display substrate, and a connector configured to couple the pad and the integrated circuit to each other.