Flexible Screen Heat Dissipation Bending Area
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Solution Overview
Problem
Existing flexible screens face challenges with heat dissipation, particularly in the bending area, where heat concentration occurs due to the lack of effective heat dissipation mechanisms, leading to increased thickness and weight from using double-layer support plates.
Innovation Solution
Incorporating a heat dissipation device, such as heat dissipation silica gel or film, on the bending area of the display substrate, which is pressed onto the support plate to ensure close contact and efficient heat transfer, along with a pressing block to maintain contact and a single-layer support plate for reduced thickness and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a double-layer support plate is used to provide sufficient support and protection for the flexible screen, then the support strength and protection are improved, but the thickness and weight of the flexible screen increase
Solution Approach 1:
The support plate is divided into two parts: a rigid support plate providing structural strength and a flexible membrane layer providing protection. This segmentation allows each layer to perform its specific function optimally while reducing the overall weight compared to a solid double-layer plate structure.
Solution Approach 2:
A flexible membrane layer is introduced as the protective layer instead of using a second rigid support plate. This thin film structure provides necessary protection while minimizing weight and thickness, resolving the contradiction between protection needs and weight reduction.
2Temperature
If heat dissipation devices are added to the bending area of the flexible screen, then heat dissipation performance is improved, but the device complexity increases
Solution Approach 1:
The heat dissipation function is merged into the existing membrane layer by incorporating heat dissipation micropores directly into the membrane structure. This integration approach adds heat dissipation capability without requiring separate heat dissipation devices, thus avoiding increased device complexity.
Solution Approach 2:
Heat dissipation micropores are introduced into the membrane layer to create a porous structure that facilitates heat dissipation. These micropores allow heat to escape from the bending area through the membrane, improving thermal management while maintaining a simple overall device structure.
3Area of moving object
If the flexible screen is folded to reduce frame width, then the screen-to-body ratio is improved, but heat concentration occurs in the bending area
Solution Approach 1:
A flexible membrane layer is used to cover the bending area, providing a thermal management solution that accommodates the folded configuration. The membrane's flexibility allows it to conform to the bent shape while its heat dissipation micropores address the heat concentration issue in the folding region.
Solution Approach 2:
Heat dissipation micropores are incorporated into the membrane layer at the bending area to specifically address heat concentration. The porous structure enables heat to dissipate through the membrane in the folding region, counteracting the heat accumulation that occurs when the screen is folded to improve screen-to-body ratio.
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 configuration enhances heat dissipation in the bending area, reducing heat concentration and overall thickness of the flexible screen, while maintaining effective support and protection.
Implementation Method 1
an end heat dissipation device is provided on a surface of the second part facing one side of the support plate... Heat generated by the second part may be advantageously conducted out by the heat dissipation silica gel
Implementation Method 2
The pressing block may be an elastic pressing block, and the elastic pressing block can provide a pre-stress so as to ensure sufficient contacting between the heat dissipation film and the second part
Data Source
AI summary
The present disclosure relates to a flexible screen, including a display substrate including a first portion, a second portion folded to form an end portion of the flexible screen and a third portion, said first, second, and third portions being sequentially connected, and a support plate for supporting the display substrate, wherein the first portion and the third portion of the display substrate are opposite to each other, the support plate is arranged between the first portion and the third portion of the display substrate, and one end of the support plate faces one surface of the second portion, and wherein the surface of the second portion facing the support plate is provided with an end heat dissipation device.