Light-Sealed Display With Reflector Portion To Minimize Leakage
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Solution Overview
Problem
The existing display apparatus experiences light leakage at the region where the quantum dot enhancement film overlaps with the frame, which affects the overall light emission efficiency and display quality.
Innovation Solution
Incorporating a reflector portion on the inner surface of the frame and a reflector on the bottom plate to reflect light leaking from the light guide plate back into the quantum dot enhancement layer, combined with an optical film layer to enhance light intensity and reduce leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the quantum dot enhancement film overlaps with the frame, then the light emission coverage is improved, but light leakage occurs at the overlapping region
Solution Approach 1:
The patent converts the harmful light leakage at the frame overlap region into a beneficial effect by introducing a reflector portion on the inner surface of the frame. This reflector redirects the leaked light back into the quantum dot enhancement film, transforming the harmful leakage into useful light that contributes to the overall emission, thereby maintaining high coverage while eliminating the negative effect.
Solution Approach 2:
The reflector portion acts as an intermediary element between the frame and the quantum dot enhancement film. It mediates the interaction by capturing light that would otherwise leak and redirecting it back into the film, serving as a bridge that resolves the contradiction between achieving full coverage and preventing leakage.
2Stability of the object's composition
If the light guide plate emits light in all directions, then the light distribution is uniform, but light leakage increases
Solution Approach 1:
The patent applies local quality by placing reflector portions at specific locations where light leakage occurs (on the inner surface of the frame at the overlap region with the quantum dot enhancement film). This localized application of the reflector addresses the leakage problem at critical areas without altering the overall uniform light distribution property of the light guide plate.
3Area of moving object
If the quantum dot enhancement film is positioned to maximize coverage, then the display area is increased, but light leakage at the frame boundary increases
Solution Approach 1:
The reflector portion on the frame's inner surface converts the boundary light leakage (which increases with larger display area) back into useful light. This allows the quantum dot enhancement film to be positioned for maximum coverage while the reflector captures and redirects the inevitable boundary leakage, maintaining both large display area and low effective leakage.
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 effectively minimizes light leakage and enhances the display effect by ensuring that all light is directed towards the display panel, improving the overall brightness and color accuracy of the display apparatus.
Implementation Method 1
Incorporating a reflector portion on the inner surface of the frame and a reflector on the bottom plate to reflect light leaking from the light guide plate back into the quantum dot enhancement layer
Implementation Method 2
combined with an optical film layer to enhance light intensity and reduce leakage
Data Source
AI summary
A display apparatus utilizing all light output by a light source also includes a display panel with a shield portion, a light guide plate, and a quantum dot enhancement layer. The display panel includes a display portion and a shield portion. The light guide plate is parallel with the display panel and guides light emitted by the light source to the display panel. The quantum dot enhancement layer converts a wavelength of the light and the shield portion is configured to reflect stray or escaping light back into the quantum dot enhancement layer for conversion. The surface of the light guide plate is overlapped with the shield portion for preventing any light leakage and the mixing of light of different wavelengths and thus colors is increased and improved.