Display Panel Cooling via Stand Fan and Duct System
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Solution Overview
Problem
Display devices, such as OLEDs, face reduced lifespan and deteriorating display quality due to heat generated during operation, which affects the light emitting layer and overall performance.
Innovation Solution
A display device design incorporating a stand with a blowing fan and a duct system that provides uniform air flow across the display panel and circuit board, enhancing heat dissipation through streamlined passages and minimal noise generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the display device operates, then light is emitted and display function is achieved, but heat is generated causing temperature increase
Solution Approach 1:
The patent extracts the heat dissipation function from the main display structure by adding a separate blowing fan and duct system. The fan is positioned in the stand and directs air flow through dedicated ducts to specific heat-generating areas, separating the display function from the cooling function while enabling effective heat removal without interfering with light emission.
Solution Approach 2:
The patent introduces air as an intermediary cooling medium that transfers heat away from the display panel. The blowing fan generates air flow, and the ducts guide this air flow to contact with the display panel and circuit board, using air as a heat transfer medium to carry away generated heat while allowing the display to continue operating.
2Reliability
If heat dissipation structures are added to prevent temperature increase, then lifespan is extended, but device complexity increases
Solution Approach 1:
The stand serves multiple functions: it provides mechanical support for the display panel and simultaneously houses the blowing fan that generates cooling air flow. This multi-functionality reduces the need for separate cooling components and simplifies the overall structure while maintaining effective heat dissipation to extend device lifespan.
Solution Approach 2:
The patent merges the cooling ducts with the existing display device housing structure. The ducts are integrated into the stand and housing rather than being separate add-on components, combining the cooling function with the structural elements already present in the display device to minimize overall complexity.
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 prevents temperature increases in the display panel and circuit board, extending the device's lifespan and maintaining display quality by ensuring efficient heat dissipation across the entire panel surface.
Implementation Method 1
a blowing fan disposed inside the stand... air flows through the first injection hole... a first discharge hole through which the air, from the first injection hole, flows out
Data Source
AI summary
A display device includes: a display panel; a stand disposed at a first side surface of the display panel; a blowing fan disposed inside the stand; and a duct disposed at a second side surface of the display panel and connected to the stand.