Foldable Display Hinge Structure for Length Compensation and Flatness
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Solution Overview
Problem
Foldable display devices suffer from irrecoverable creases at the boundary of bendable and unbendable portions, leading to poor display effects due to slight changes in the flexible display panel's length between folded and unfolded states.
Innovation Solution
A support device with a hinge mechanism, including a first and second support plate, a flip assembly, and an elastic member, allows the bendable portion of a flexible display module to be folded or unfolded while compensating for length changes by varying the elastic member's compression amount to maintain panel flatness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the flexible display panel is folded or unfolded, then the bendable portion can be folded or unfolded, but the length of the flexible display panel changes slightly, causing creases at the boundary of bendable and unbendable portions
Solution Approach 1:
The hinge mechanism incorporates a slide member that can move relative to the fixing member along a sliding direction, dynamically adjusting the effective length of the hinge to compensate for length changes in the flexible display panel during folding and unfolding operations
Solution Approach 2:
The elastic member changes its compression amount based on the folding state, and the slide member changes its position along the sliding direction, thereby changing the effective length parameter of the hinge to match the length changes of the flexible display panel
2Device complexity
If the hinge structure is simplified, then the device complexity is reduced, but the ability to compensate for length changes is insufficient, leading to creases
Solution Approach 1:
The hinge is segmented into multiple functional components: fixing member, slide member, elastic member, and connection wrap member, each performing a specific function that collectively enables length compensation while maintaining a relatively simple overall structure
Solution Approach 2:
The slide member acts as an intermediary between the fixed support plates and the flexible display panel, providing a mechanism that translates the length changes of the panel into corresponding adjustments in the hinge structure
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
Ensures the flexible display module remains flat and improves display quality by accommodating length variations over time, preventing creases and maintaining optimal performance.
Implementation Method 1
a first elastic member, disposed between the fixing member and the slide member with one end of the first elastic member being connected to the fixing member and another end of the first elastic member being connected to the slide member; wherein the first elastic member is in a compressed state, and a first compression amount of the first elastic member in a case where the support device is not connected to the flexible display module is less than a second compression amount of the first elastic member in a case where the support device is connected to the flexible display module
Data Source
AI summary
Provided is a support device. The support device includes: a first support plate, a second support plate, and a hinge. The hinge is configured to allow a bendable portion of a flexible display module to be folded or unfolded. The hinge at least includes a flip assembly, the flip assembly including: a first flip plate, a fixing member, a connection wrap member, a slide member, a first elastic member, and a second flip plate. The first elastic member is disposed between the fixing member and the slide member, and a first compression amount of the first elastic member in a case where the support device is not connected to the flexible display module is less than a second compression amount of the first elastic member in a case where the support device is connected to the flexible display module.