Backlight Frame Protrusions for Display Thickness Reduction
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Solution Overview
Problem
Existing display devices face challenges in achieving a thin and cost-effective design while maintaining high image quality and structural stability.
Innovation Solution
The display device incorporates a backlight unit with a frame having protrusions, a light guide plate with grooves or holes corresponding to the protrusions, an optical layer between the light guide plate and the display panel, and a light source positioned on the side of the light guide plate, all of which are securely attached using an adhesive and brackets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a conventional backlight unit structure is used, then the display device achieves basic functionality, but the thickness and manufacturing cost are high
Solution Approach 1:
The backlight unit is divided into separate functional components: a light guide plate for light distribution, an optical layer for light modulation, and a frame for structural support. This segmentation allows each component to be optimized independently and assembled efficiently, reducing overall thickness and manufacturing complexity
Solution Approach 2:
The frame is designed to serve multiple functions simultaneously: it provides structural support, houses the light source, and integrates with the light guide plate and optical layer. This multi-functionality reduces the number of separate components needed, thereby reducing thickness and manufacturing cost
2Illumination intensity
If a conventional backlight unit structure is used, then the display device achieves basic functionality, but the light uniformity and stability are insufficient
Solution Approach 1:
The optical layer acts as an intermediary between the light guide plate and the display panel, modulating and uniforming the light distribution. This intermediate component ensures uniform illumination across the display panel while maintaining a relatively simple overall structure
Solution Approach 2:
The light guide plate includes grooves or holes at specific locations corresponding to protrusions on the frame, creating localized light guidance paths. This local structural variation ensures uniform light distribution across different regions of the display panel while maintaining overall structural simplicity
3Stability of the object's composition
If components are securely attached, then structural stability is improved, but device complexity increases
Solution Approach 1:
The light guide plate and optical layer are positioned within and secured by the frame structure. The frame acts as a containing structure that holds the other components in place, providing structural stability without requiring complex external attachment mechanisms
Solution Approach 2:
The attachment details are extracted into the frame structure itself, which includes integrated features for securing the light guide plate and optical layer. This eliminates the need for separate fastening components and simplifies the overall assembly
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 configuration reduces the thickness and manufacturing cost of the display device while enhancing the uniformity and stability of the light output, leading to improved image quality and a more attractive appearance.
Implementation Method 1
a plurality of brackets attached to a non-display area of a back surface of the back substrate using an adhesive
Data Source
AI summary
A display device includes a display panel including a front substrate and a back substrate, a plurality of brackets attached to a non-display area of a back surface of the back substrate using an adhesive, and a backlight unit positioned in the rear of the display panel. The backlight unit includes a frame including at least one protrusion, a light guide plate disposed between the frame and the display panel, the light guide plate including at least one groove or hole corresponding to the at least one protrusion of the frame, an optical layer disposed between the light guide plate and the display panel, and a light source disposed on the side of the light guide plate.