Display Backlight Frame With Reflective Sheet and Cut-Out Support
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices face challenges in structural stability, light uniformity, light efficiency, and heat dissipation efficiency of the backlight unit, particularly in LCD panels.
Innovation Solution
A display device design featuring a frame with a sheet support portion, substrate support portion, and cut-out portion, along with a reflective sheet and substrate configuration that enhances structural stability and light efficiency by reflecting light uniformly and improving heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the backlight unit uses a conventional structure without specialized support portions, then the device complexity is low, but the structural stability is insufficient
Solution Approach 1:
The frame is segmented into distinct functional portions: a sheet support portion for supporting the reflective sheet, a substrate support portion for supporting the substrate, and a cut-out portion for substrate insertion. This segmentation allows each portion to be optimized for its specific function while maintaining overall structural stability without excessive complexity.
Solution Approach 2:
The substrate support portion acts as an intermediary structure between the frame and the substrate, providing a stable mounting interface. The step structure of the substrate support portion creates a gap with the reflective sheet, allowing the substrate to be positioned and secured without direct contact that would compromise either component.
2Illumination intensity
If the reflective sheet is positioned close to the light assembly, then the light efficiency is high, but the light uniformity deteriorates
Solution Approach 1:
The substrate support portion creates a replicated or copied position for the substrate that is offset from the reflective sheet. This offset positioning allows the substrate to be supported at an optimal location that balances light uniformity across the display panel with sufficient light efficiency through the reflective sheet's hole structure.
3Stability of the object's composition
If the substrate is securely fixed to the frame, then the structural stability is high, but the heat dissipation efficiency is reduced
Solution Approach 1:
The substrate is extracted or removed from direct contact with the frame through the cut-out portion design. The substrate is positioned on the substrate support portion but not fully integrated into the frame structure, allowing heat to dissipate more effectively while maintaining structural stability through the support portion.
Solution Approach 2:
The substrate support portion creates a vertical or spatial dimension separation between the substrate and the frame. By positioning the substrate on a support portion that extends from the frame rather than directly attaching it, the design adds a dimensional layer that facilitates heat dissipation pathways while maintaining mechanical stability.
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 increases structural stability, light uniformity, and heat dissipation efficiency while maintaining high light efficiency in the backlight unit.
Implementation Method 1
a reflective sheet positioned on the frame and the substrate and having a hole through which the light assembly passes, the reflective sheet reflecting the light provided by the light assembly to the display panel
Data Source
AI summary
A display device is disclosed. The display device includes: a display panel; a frame positioned at a rear of the display panel and to which the display panel is coupled; a substrate positioned on the frame between the display panel and the frame; a light assembly mounted on the substrate and providing light to the display panel; and a reflective sheet positioned on the frame and the substrate, having a hole through which the light assembly passes, and reflecting the light provided by the light assembly to the display panel, wherein: the frame includes a sheet support portion to support the reflective sheet, a substrate support portion forming a step descending from the sheet support portion and defining a gap with the reflective sheet, and a cut-out portion configured as an opening formed through the frame at one side of the substrate support portion; and the substrate is positioned on the substrate support portion of the frame and is inserted into the cut-out portion.