Light Guiding Member Projection Masking Illumination
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Solution Overview
Problem
Existing video display devices lack effective illumination solutions that enhance visual quality and user attraction while minimizing space and power consumption.
Innovation Solution
A video display device design featuring a plate-like light guiding member with a projection and a masking member, combined with a power supply unit capable of switching between two modes to adjust light emission, ensuring efficient illumination and power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a ring-shaped illumination device is used to emit light of uniform luminance, then illumination quality is improved, but device complexity and space requirements increase
Solution Approach 1:
The illumination device is segmented into a light source unit and a light guiding member with specific geometric features (protrusions and recesses). The light guiding member is divided into a body portion and a projection portion, where the projection portion extends along the light emission direction. This segmentation allows the complex illumination function to be achieved through simpler, modular components that can be independently manufactured and assembled.
Solution Approach 2:
The invention transitions from a traditional planar illumination approach to a three-dimensional light guiding structure. The projection portion extending along the light emission direction creates a volumetric light distribution pattern, enabling uniform illumination across a larger area without increasing the footprint of the device. This dimensional extension allows the illumination to spread in the depth direction rather than requiring lateral expansion.
2Illumination intensity
If illumination intensity is increased to enhance visual quality, then user attraction and visual appeal are improved, but power consumption increases
Solution Approach 1:
The light guiding member acts as an intermediary between the light source and the display panel. It receives light from the light source unit and redistributes it through its geometric structure (protrusions and recesses) to achieve uniform illumination. This intermediary structure allows the system to achieve high visual quality with lower power consumption by efficiently distributing light rather than requiring high intensity directly from the source.
Solution Approach 2:
The invention changes the spatial distribution parameters of light emission through the light guiding member's geometric design. By controlling the shape, size, and arrangement of protrusions and recesses, the system transforms the light distribution pattern to achieve uniform illumination across the display panel. This parameter optimization allows maintaining high visual quality while reducing overall power consumption through efficient light utilization.
3Area of stationary object
If illumination coverage is expanded to improve visual appeal, then user attraction is enhanced, but interference with display panel visibility increases
Solution Approach 1:
The light guiding member employs local quality differentiation through its geometric features. The projection portion has a different cross-sectional shape compared to the body portion, with protrusions and recesses that create localized light distribution zones. This local variation allows the system to concentrate light where needed for illumination while maintaining display panel visibility in other areas, achieving expanded coverage without excessive interference.
Solution Approach 2:
The invention introduces dynamic control capability through the light guiding member's design. The projection portion can be configured to direct light dynamically across different areas of the display panel, allowing the system to adapt illumination coverage based on operational requirements. This dynamic light distribution enables expanded illumination area while maintaining visibility by directing light away from the display panel when necessary.
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 two distinct illumination effects, reduces visibility interference with the display panel, and achieves power savings by adjusting light distribution dynamically, enhancing visual appeal and operational efficiency.
Implementation Method 1
a plate-like light guiding member 22 having a part thereof located in the opening 37
Data Source
AI summary
According to one embodiment, an electronic device including a display panel, a casing including an opening, a plate-like light guiding member having a part thereof located in the opening, a masking member overlapping with a part of the light guiding member, a projection projecting from the light guiding member around the masking member, a light source provided in the casing to supply light to the light guiding member and emit the light to the outside of the projection, and a power supply unit configured to be switched between a first mode and a second mode.