Water Cooling Pipe Heat Dissipation Plate for Thin Displays
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Solution Overview
Problem
Existing backlight modules in liquid crystal display devices suffer from poor heat dissipation efficiency, leading to overheating and reduced light-emitting efficiency, which complicates the manufacturing of thin and light display devices.
Innovation Solution
A light and thin display device design incorporating a light guide plate, an LED light bar, an L-shaped aluminum heat dissipation plate, and a water cooling pipe with inlet and outlet ports, along with a base for supporting the device, which uses coolant liquid to dissipate heat effectively without increasing thickness or cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heat dissipation fins are added to the backplane, then heat dissipation efficiency is improved, but device thickness increases
Solution Approach 1:
The patent introduces a water cooling pipe system with coolant circulation to achieve active heat dissipation. The water cooling pipe is connected to the backplane, allowing coolant to flow through and carry away heat from the LED light bar and backplane assembly, thereby improving heat dissipation efficiency without increasing device thickness through passive fins
Solution Approach 2:
The patent introduces coolant as an intermediary substance to transfer heat from the backplane to the external environment. The coolant absorbs heat from the backplane through the water cooling pipe and transports it away, enabling efficient heat dissipation without requiring thick heat dissipation fins
2Temperature
If conventional heat dissipation methods are used, then heat dissipation is achieved, but device weight increases
Solution Approach 1:
The patent replaces heavy passive heat dissipation structures with a lightweight active cooling system using water circulation. The water cooling pipe system with coolant flow achieves superior heat dissipation capability while maintaining lightweight construction, as the cooling pipes and coolant are significantly lighter than traditional heat dissipation fins would be
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 ensures efficient heat dissipation while maintaining the device's lightness and thinness, reducing manufacturing costs and enhancing product competitiveness by eliminating the need for heat dissipation fins.
Implementation Method 1
a water cooling pipe comprising an inlet port, an outlet port, and multiple bending segments connected between the inlet port and the outlet port. The bending segments are attached to the heat dissipation plate for circulating coolant liquid. The coolant liquid flows into the inlet port and then flows out of the outlet port to take away heat on the heat dissipation plate.
Implementation Method 2
a light-emitting diode (LED) light bar disposed at a light-incident end of the light guide plate for emitting light toward the light guide plate
Data Source
AI summary
A light and thin display device is provided. The light and thin display device includes: an LED light bar disposed at a light-incident end of a light guide plate and attached to an inner side of a heat dissipation plate; a base connected with an outer side of the heat dissipation plate; a water cooling pipe including an inlet port, an outlet port, and multiple bending segments connected between the inlet port and the outlet port. The bending segments are attached to the heat dissipation plate for circulating coolant liquid. By making full use of the heat dissipation capacity of the heat dissipation plate and the heat conduction base, the area of the heat dissipation plate is reduced and heat dissipation fins are avoided. The display device is ensured light and thin and has a good heat dissipation effect. The cost of the heat dissipation structure is reduced.