Reflective Sheet Protrusions Prevent Light Leakage
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Solution Overview
Problem
Existing display devices with reflective sheets suffer from light leakage and decreased brightness due to gaps formed when the sheet is folded, leading to a loss of light reflection efficiency.
Innovation Solution
A reflective sheet with first and second protrusions at adjacent end edges is used, which overlap when folded, covering the gaps and preventing light leakage, thus maintaining the sheet's shape and enhancing light reflection efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the reflective sheet is folded to form side face parts, then the sheet can be attached to the rear side support member, but gaps occur at the corners causing light leakage
Solution Approach 1:
The reflective sheet is divided into distinct face parts (bottom face part and side face parts) that are folded and attached separately to the rear side support member, allowing for easier manufacturing and attachment while maintaining optical performance through the protrusion design
Solution Approach 2:
Protrusions are introduced as intermediary elements at the corners of the reflective sheet. These protrusions fill the gaps that would otherwise form between adjacent side face parts, preventing light leakage while allowing the sheet to be properly folded and attached to the support member
2Shape
If the reflective sheet is folded with slits at corners, then the sheet body can be formed into concave shape, but gaps widen and overall shape is lost
Solution Approach 1:
The reflective sheet is segmented into a bottom face part and multiple side face parts that can be folded independently to form the concave shape, while the protrusions at the corners maintain the overall structural integrity by preventing gap formation between segments
Solution Approach 2:
Protrusions are pre-formed at the corners of the reflective sheet before folding and attachment. This preliminary action ensures that when the sheet is folded into its concave shape, the protrusions are already in position to prevent gap formation and maintain shape integrity
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 effectively suppresses light leakage and maintains the reflective sheet's shape, thereby reducing the likelihood of decreased brightness and improved light reflection efficiency in display devices.
Implementation Method 1
The reflective sheet is configured to reflect the light from the light source towards the display component
Data Source
AI summary
A display device includes a display component, a light source, a rear side support member, and a reflective sheet. The light source is disposed on a rear side of the display device relative to the display component. The reflective sheet includes a bottom face part, a first side face part and a second side face part. The first and second side face parts have first and second protrusions at adjacent end edge portions of the first and second side face parts, respectively. The first protrusion overlaps with the end edge portion of the second side face part from the rear side while the reflective sheet is attached to the rear side support member. The second protrusion overlaps with the end edge portion of the first side face part from the rear side while the reflective sheet is attached to the rear side support member.