Transparent Display Module Heat Dissipation and Thickness Reduction
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Solution Overview
Problem
Current transparent display technologies face challenges in achieving a thin device thickness and effective heat dissipation while providing a good display effect, especially for applications like vehicle windows, where they need to convert point light sources into surface light sources.
Innovation Solution
A transparent display module comprising two transparent substrates, a transparent display panel, a light guide plate, and a heat dissipation structure, including a heat dissipation frame and heat pipe, which facilitates heat dissipation and maintains a thin profile by arranging the light source between the display panel and the substrates, and the heat pipe within the frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the light source is arranged between the transparent display panel and the second transparent substrate, then the device thickness is reduced, but the heat dissipation becomes more difficult
Solution Approach 1:
The patent transitions from a planar heat dissipation approach to a three-dimensional heat dissipation structure by introducing a heat dissipation frame that extends along the peripheral edges of the transparent display panel, utilizing the vertical and lateral dimensions simultaneously to evacuate heat from the compact light source arrangement
Solution Approach 2:
The heat dissipation function is segmented from the central display area and distributed along the peripheral edges through multiple heat dissipation frames, allowing heat to be dissipated from multiple locations simultaneously rather than concentrating thermal management in a single location
2Illumination intensity
If the light source is converted from point light source to surface light source using light guide plate, then the display effect is improved, but the device complexity increases
Solution Approach 1:
The light guide plate serves as an intermediary component that receives light from the compact light source and redistributes it across the display surface, enabling surface light source characteristics without requiring a complex array of individual light emitting elements
Solution Approach 2:
The light guide plate performs multiple functions simultaneously: it guides light from the source, distributes illumination uniformly across the display area, and contributes to the overall structural integration of the transparent display module
3Temperature
If the heat dissipation frame is arranged on the outer periphery of the transparent display panel, then the heat dissipation efficiency is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The heat dissipation function is segmented into modular heat dissipation frames positioned at peripheral locations, which can be manufactured and assembled separately from the main display panel, reducing the overall manufacturing precision requirements compared to an integrated heat dissipation design
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 solution enables a thinner device thickness, effective heat dissipation, and a good display effect by converting point light sources into surface light sources, suitable for applications on vehicle windows.
Implementation Method 1
The heat dissipation structure further comprises a heat pipe that is in direct contact with the heat dissipation frame
Data Source
AI summary
A transparent display module and a display device are provided. The transparent display module includes a first transparent substrate and a second transparent substrate that are arranged opposite to each other, a transparent display panel and a light source. The transparent display panel is arranged between the first transparent substrate and the second transparent substrate. The light guide plate is arranged between the transparent display panel and the second transparent substrate. The light source is arranged between the transparent display panel and the second transparent substrate, and the light source is located on the side of the light guide plate.