Flat Panel Display Heat Radiating Units for Thermal Management
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Solution Overview
Problem
High-resolution flat panel displays face issues with increased power consumption and heat emission due to larger driving circuits, which can lead to defective operations if heat is not effectively managed.
Innovation Solution
The implementation of heat radiating units made from thin film thermally conductive materials attached to film substrates and printed circuit boards, with protrusions and metal pads for efficient heat dissipation, allowing rapid heat radiation from driving circuits, input terminals, output terminals, and pads to the outside.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the resolution of the FPD is increased, then the image quality is improved, but the power consumption and heat emission increase
Solution Approach 1:
The patent extracts the heat radiating function from the main display structure by adding separate heat radiating units with protruding second contacting units that extend outward from the film substrate. This allows heat to be conducted away from the driving circuits through dedicated thermal pathways without interfering with the display function.
Solution Approach 2:
The heat radiating units serve as intermediary components between the heat-generating driving circuits and the external environment. The first contacting unit attaches to the film substrate near the driving circuits, while the second contacting unit protrudes to contact external heat dissipation structures, creating an intermediate thermal conduction pathway.
2Measurement precision
If the resolution of the FPD is increased, then the image quality is improved, but the heat emission increases
Solution Approach 1:
The heat radiating function is extracted from the main display structure by adding separate heat radiating units with protruding second contacting units that extend outward from the film substrate. This allows heat to be conducted away from the driving circuits through dedicated thermal pathways without interfering with the display function.
Solution Approach 2:
The heat radiating units extend the thermal management solution into a third dimension by having the second contacting unit protrude outward from the plane of the film substrate. This vertical extension provides additional surface area for heat dissipation and creates pathways for heat to escape in multiple directions.
3Quantity of substance
If the size of the driving circuits increases, then the channel capacity is improved, but the heat emission increases
Solution Approach 1:
The thermal management system is segmented into distinct components: the first contacting unit attached to the film substrate, the heat radiating unit material, and the second contacting unit that protrudes outward. This segmentation allows each component to be optimized for its specific function while working together to manage heat from the driving circuits.
Solution Approach 2:
The heat radiating units serve as intermediary components between the heat-generating driving circuits and the external environment. The first contacting unit attaches to the film substrate near the driving circuits, while the second contacting unit protrudes to contact external heat dissipation structures, creating an intermediate thermal conduction pathway.
4Reliability
If heat accumulates in the driving circuits, then the operational reliability is maintained, but the device complexity increases
Solution Approach 1:
The heat radiating unit is formed from a thin film-shaped thermally conductive material that can be conformally attached to the film substrate. This thin film structure provides effective heat conduction without adding significant bulk or complexity to the device architecture.
Solution Approach 2:
The heat radiating units are attached to the film substrate in advance, establishing thermal pathways before the driving circuits generate excessive heat. The protruding second contacting units are positioned to contact external heat dissipation structures beforehand, ensuring heat can be rapidly conducted away when the circuits operate.
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
This solution effectively prevents heat accumulation, reducing the risk of driving circuit damage and ensuring continuous operation by efficiently radiating heat generated by the driving circuits and other components.
Implementation Method 1
heat radiating units made from thin film thermally conductive materials attached to film substrates and printed circuit boards
Data Source
AI summary
A flat panel display (FPD) including a display panel for displaying an image; a film substrate electrically connected to the display panel, the film substrate including driving circuits; a printed circuit board (PCB) electrically connected to the film substrate, the printed circuit board providing a signal for displaying the image; and a heat radiating unit attached to one surface of the film substrate, the heat radiating unit contacting at least one of the display panel and the PCB.