Display Core Plate Structure for Thin-Profile Heat Isolation
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Solution Overview
Problem
Existing display apparatuses face challenges in effectively dissipating heat generated by the display panel and control printed circuit board, which can lead to a shortened lifespan due to inadequate heat management, particularly in thin and flexible designs.
Innovation Solution
A display apparatus design incorporating a core plate with a heat-dissipating portion and thermal insulation portion, where the heat-dissipating portion is made of high thermal conductivity metal and the insulation portion is made of lower thermal conductivity polymer, attached directly to the display module, along with a back cover that facilitates air circulation for enhanced heat dissipation and prevents heat transfer from the control printed circuit board to the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a thin display apparatus structure is adopted, then the device becomes more compact and lightweight, but heat dissipation performance deteriorates
Solution Approach 1:
The core plate is segmented into two distinct portions: a heat-dissipating portion with high thermal conductivity material and a thermal insulation portion with low thermal conductivity material. This segmentation allows simultaneous heat dissipation from the display panel while preventing heat transfer from the control printed circuit board, resolving the contradiction between thin structure and heat dissipation performance.
Solution Approach 2:
Different regions of the core plate are assigned different thermal properties: the heat-dissipating portion uses high thermal conductivity material to conduct heat away from the display panel, while the thermal insulation portion uses low thermal conductivity material to block heat from the control printed circuit board. This local differentiation of material properties enables the thin structure to achieve effective heat management.
2Temperature
If heat dissipation structures are added to improve thermal management, then heat dissipation performance improves, but device complexity increases
Solution Approach 1:
The heat dissipation and thermal insulation functions are merged into a single core plate structure rather than using separate components. The core plate integrates both the heat-dissipating portion and thermal insulation portion, achieving effective thermal management while maintaining a simple overall structure and reducing the number of parts.
3Duration of action of stationary object
If thermal insulation measures are implemented to protect the display panel from heat, then display panel lifespan is extended, but heat dissipation from the display panel may be compromised
Solution Approach 1:
The core plate is divided into functionally distinct portions: the heat-dissipating portion actively conducts heat away from the display panel to maintain its lifespan, while the thermal insulation portion selectively blocks heat from the control printed circuit board. This segmentation enables simultaneous heat dissipation protection and thermal insulation protection.
Solution Approach 2:
Different thermal conductivity materials are applied locally to different portions of the core plate. The heat-dissipating portion uses high thermal conductivity material to protect the display panel by conducting heat away, while the thermal insulation portion uses low thermal conductivity material to protect against heat from the control printed circuit board, achieving both protective functions simultaneously.
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 design effectively dissipates heat from the display panel and prevents heat transfer from the control printed circuit board, extending the lifespan of the display panel and allowing for a thinner, narrower bezel design.
Implementation Method 1
the heat-dissipating portion having a top surface attached to the display module
Implementation Method 2
the thermal insulation portion received in a groove formed in the heat-dissipating portion
Data Source
AI summary
A display apparatus includes a cover window; a display module attached to a bottom surface of the cover window; a core plate attached to a bottom surface of the display module; and a back cover accommodating the display module and the core plate, wherein the back cover is attached to a bottom surface of the cover window, wherein the core plate includes: a heat-dissipating portion having a top surface attached to the display module; and a thermal insulation portion received in a groove formed in the heat-dissipating portion.