Display Device Heat Radiation Member and Substrate Mounting Member
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices with heat radiation members made of metal face issues where heat generated from the light source is easily transferred to the rear housing, causing a rise in temperature at the user interface, leading to discomfort.
Innovation Solution
A display device design featuring a metal heat radiation member in contact with the light source, a substrate mounting member made of sheet metal, and a cover member, where the heat radiation member is arranged to transfer heat to the substrate mounting member rather than the rear housing, with strategic spacing and rib structures to enhance heat dissipation and prevent user contact with hot components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the heat radiation member is arranged to come into surface contact with the front surface of the rear housing, then heat transfer from the light source to the heat radiation member is improved, but the temperature of the rear housing rises causing user discomfort
Solution Approach 1:
The substrate mounting member is introduced as an intermediary component between the heat radiation member and the rear housing. This metal sheet serves as a heat transfer mediator that directs heat away from the rear housing toward the sides and back, preventing direct heat transfer to the rear housing surface that users touch, thus resolving the contradiction between effective heat radiation and user comfort
Solution Approach 2:
The housing structure is segmented into functional zones: the rear housing forms a recessed region that accommodates the light guide plate, while the substrate mounting member creates a separate mounting zone. This segmentation allows heat management functions to be distributed, with the substrate mounting member specifically handling heat dissipation away from user-contact areas
2Object-affected harmful factors
If the substrate mounting member is covered with the cover member, then user contact with hot components is prevented, but the device structure becomes more complex
Solution Approach 1:
The cover member is designed to perform multiple functions: it covers the substrate mounting member to prevent user contact with hot components, provides structural support, and contributes to the overall housing assembly. This multi-functionality reduces the need for additional separate protective components, thereby limiting the increase in device complexity while achieving user safety
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
Effectively suppresses the rise in temperature at the user interface by efficiently transferring heat away from the rear housing and preventing direct contact with hot components, thereby improving user comfort and device performance.
Implementation Method 1
the heat generated from the light source portion is transferred to the substrate mounting member made of sheet metal through the heat radiation member made of metal to be radiated
Data Source
AI summary
This display device includes a heat radiation member made of metal, configured to radiate heat generated from a light source portion, a rear housing arranged on the rear side of the heat radiation member, a substrate mounting member made of sheet metal, mounted with a circuit substrate, and a cover member covering the substrate mounting member from the rear side of the substrate mounting member in a state where the rear surface of the rear housing is exposed to the outside, while the heat radiation member is arranged to come into contact with the substrate mounting member.