LCD Backlight Frame Lateral Extension Heat Dissipation
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Solution Overview
Problem
Compact and lightweight LCD display devices face challenges in heat dissipation, as existing structures fail to efficiently remove heat generated by point light sources like LEDs, leading to potential deterioration and limitations in making devices slimmer and lighter.
Innovation Solution
A backlight assembly with a light-sourcing unit fixing frame that thermally conducts heat away from LEDs, featuring a housing with a plate-like bottom portion and lateral extensions to expose heat outside the housing for effective dissipation, and interlocks with the housing using protrusions and grooves for enhanced heat management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the panel and backlight assembly are made more compact to achieve lighter and slimmer display devices, then the device size and weight are reduced, but heat dissipation capability deteriorates
Solution Approach 1:
The light-sourcing unit fixing frame extends laterally beyond the housing boundaries in the horizontal dimension, creating exposed surfaces that protrude outward. This dimensional extension provides additional heat dissipation area without increasing the vertical thickness of the device, thereby resolving the contradiction between compact size and heat dissipation capability.
Solution Approach 2:
The heat dissipation function is extracted from the internal housing structure and transferred to the externally exposed light-sourcing unit fixing frame. By positioning the heat dissipation surface outside the housing boundaries, the patent creates a dedicated heat dissipation pathway that operates independently from the compact internal space constraints.
2Temperature
If traditional housing structures are used without external heat dissipation features, then the housing structure remains simple, but heat dissipation performance is insufficient
Solution Approach 1:
The light-sourcing unit fixing frame performs multiple functions: it mechanically secures the light-sourcing unit, provides thermal conduction pathways, and serves as an external heat dissipation radiator. By integrating these functions into a single structural element, the patent improves heat dissipation performance without proportionally increasing housing structure complexity.
Solution Approach 2:
The patent merges the light-sourcing unit mounting structure with the heat dissipation structure into a single integrated light-sourcing unit fixing frame. This consolidation eliminates the need for separate heat dissipation components, thereby improving thermal management while maintaining relatively simple housing structure.
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 provides improved heat dissipation performance, enabling the creation of more compact and lightweight LCD display devices by effectively managing heat generated by LEDs, thus preventing deterioration and allowing for further miniaturization and weight reduction.
Implementation Method 1
The light-sourcing unit fixing frame is provided to support the light sourcing unit and also to thermally conduct heat energy away from the light sourcing unit
Data Source
AI summary
A backlight assembly of a Liquid Crystal Display (LCD) is provided with improved heat dissipation capabilities. The improved dissipation capabilities come from one or more light-sourcing unit fixing frames that have extensions which protrude to outside a housing that houses light sourcing units of the LCD. The light-sourcing unit fixing frames mechanically interlock with the housing.