Display Panel Heat-Dissipation Structure for Luminance Stability
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Solution Overview
Problem
Existing display panels face issues with heat management and impurity diffusion, leading to reduced reliability and convenience.
Innovation Solution
Incorporating a heat radiation member connected through an opening in the intermediate film, a thermally conductive film, and a strong adhesive intermediate film layer to manage heat and prevent impurity diffusion, enhancing the reliability of the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heat radiation member is connected to the terminal through an opening in the intermediate film, then heat dissipation is improved and luminance stability is enhanced, but the structural complexity increases
Solution Approach 1:
The intermediate film is divided into a light-emitting region and a light-nonemitting region, with the opening specifically positioned in the light-nonemitting region. This segmentation allows the film to simultaneously provide insulation where needed and heat dissipation pathways where light emission is not required, resolving the contradiction between structural integrity and thermal management.
Solution Approach 2:
The thermally conductive film is introduced as an intermediary component between the terminal and the heat radiation member. This intermediary enhances heat transfer efficiency while allowing the intermediate film to maintain its insulating function in the light-emitting regions, thus improving heat dissipation without compromising the film's primary insulation role.
2Reliability
If the intermediate film includes a light-emitting region and a light-nonemitting region, then impurity diffusion is prevented and reliability is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The intermediate film is designed with different properties in different regions: the light-emitting region maintains high insulation properties to prevent impurity diffusion, while the light-nonemitting region includes openings for heat dissipation. This local differentiation allows each region to optimize its function, improving overall reliability while the standardized patterning process helps manage manufacturing precision requirements.
3Loss of energy
If the thermally conductive film is connected to the terminal and overlaps with the opening, then heat transfer efficiency is improved, but the device complexity increases
Solution Approach 1:
The thermally conductive film is merged with the terminal structure, forming an integrated heat conduction pathway. This merging allows the terminal to serve dual functions: electrical connection and thermal conduction to the heat radiation member, thereby improving heat transfer efficiency while minimizing the increase in device complexity through functional integration.
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 effectively cools the display elements, maintains luminance stability, and prevents impurity diffusion, resulting in a highly reliable and convenient display panel.
Implementation Method 1
Heat generated by the display element can be transferred to the heat radiation member. The display element can be cooled using the heat radiation member.
Implementation Method 2
Heat generated by the display element can be transferred to the thermally conductive film. Heat generated by the display element can be transferred to the heat radiation member.
Data Source
AI summary
A novel display panel that is highly convenient or reliable is provided. A novel display device that is highly convenient or reliable is provided. A novel input/output device that is highly convenient or reliable is provided. A novel data processing device that is highly convenient or reliable is provided. The display panel includes a pixel, a functional layer, and a heat radiation member, the pixel includes a display element and a pixel circuit, and the pixel circuit is electrically connected to the display element. The functional layer includes the pixel circuit, a terminal, and an intermediate film, and the terminal is connected to the display element. The intermediate film includes an opening, and the heat radiation member is connected to the terminal through the opening.