Display Device Air Circulator for Outdoor Heat Management
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Solution Overview
Problem
Display devices exposed to sunlight experience temperature rises due to direct sunlight exposure and heat from backlight units, leading to potential degradation of the display panel.
Innovation Solution
A modularized air circulator system is integrated into the display device, featuring a housing with a front glass and rear cover, and air circulators with circulation fans that circulate air between the front glass and the display panel, utilizing outlets, connection ports, and blocking members to prevent air leaks and efficiently manage heat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a display panel is directly exposed to sunlight, then the display device can be installed for outdoor or exterior advertisement, but the surface temperature of the display panel rises and causes degradation of the display panel
Solution Approach 1:
The patent converts the harmful effect of sunlight exposure into a beneficial cooling mechanism. The air circulator system uses the temperature difference created by sunlight heating the front glass to drive natural convection currents, where hot air rises along the front glass and cool air flows along the display panel, effectively using the sunlight-induced temperature gradient to cool the display panel without additional energy input.
2Illumination intensity
If a backlight unit irradiates light to the display panel, then the display panel can display images, but the backlight unit also irradiates heat which may degrade the display panel
Solution Approach 1:
The patent extracts and separates the light function from the heat function of the backlight unit. By introducing an air circulator system that selectively removes heat while allowing light transmission, the system maintains the illumination function of the backlight unit while extracting the harmful thermal energy through controlled air flow paths that pass behind the display panel.
Solution Approach 2:
The patent introduces air as an intermediary medium between the backlight unit and the display panel. The air circulator system uses air flow to mediate the thermal interaction, allowing the backlight unit to illuminate the display panel while the air flow carries away the heat generated by the backlight unit, preventing direct thermal damage to the display panel.
3Temperature
If an air circulator system is added to cool the display panel, then the temperature management is improved, but the device complexity increases
Solution Approach 1:
The air circulator system is designed to perform multiple functions simultaneously: it cools the display panel, prevents condensation, and can be configured in modular arrangements to adapt to different display device sizes. The same basic structure with connection ports and blocking members can be replicated and combined to serve various form factors, reducing the need for completely different designs for different applications.
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 air circulator system effectively reduces temperature increases on the display panel, preventing degradation and allowing for high brightness and efficient heat management, while being modular and easy to connect for various display device sizes.
Implementation Method 1
an air circulator arranged behind the display panel for circulating air between the front glass and the front surface of the display panel
Implementation Method 2
The air circulator system effectively reduces temperature increases on the display panel, preventing degradation
Data Source
AI summary
Provided is a display device. The display device includes a housing including a front glass and a rear cover, a display panel arranged within the housing, and an air circulator arranged behind the display panel for circulating air between the front glass and the front surface of the display panel, wherein the air circulator includes a circulation fan circulating air, a case receiving the circulation fan and having open top to discharge air in a direction of long edges of the display panel, a first connection part formed to be open at one end of the case in the direction of long edges, and a second connection part formed to be open at the other end of the case in the direction of long edges.