Light Guide Member With Shield Structure For Display Clarity
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Solution Overview
Problem
Existing light emission display devices are costly due to complex lens designs and fail to provide a clear boundary between lit and unlit regions, while sound collection devices lack easy visual recognition of functional status.
Innovation Solution
A light emission display device with a light guide member and point light sources, featuring a light shield structure that partitions the emission face into regions, and a sound collection device with a light emission display switch that indicates microphone status through selective lighting of regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a lens is used to transform light from LED light sources into upward parallel rays, then light emission uniformity is improved, but production cost increases due to complex lens shape
Solution Approach 1:
The patent extracts and removes the complex lens component from the display device structure. Instead of using a lens to transform light into parallel rays, the invention directly uses the LED light source with a reflector to achieve uniform light emission, thereby eliminating the costly and complex lens while maintaining illumination uniformity.
Solution Approach 2:
The patent replaces the expensive, complex-shaped lens with simpler, cheaper optical components such as a reflector and direct LED positioning. This substitution uses inexpensive materials and simpler manufacturing processes to achieve the same light transformation function, significantly reducing production costs.
2Adaptability or versatility
If a liquid crystal display panel is used for displaying functional status, then display capability is provided, but visual recognition from multiple angles is poor, limiting accessibility
Solution Approach 1:
The patent uses light-emitting components that emit visible light in different colors or intensities to indicate functional status. The light guide member transforms this light into diffused emission from the light emission face, creating a display that is visible from multiple angles. The functional status is communicated through optical changes rather than liquid crystal modulation, enabling omnidirectional visibility.
3Ease of manufacture
If a light guide member without light shield structure is used, then manufacturing is simpler, but boundary clarity between light emission regions is poor
Solution Approach 1:
The patent segments the light emission face into multiple distinct light emission regions using a light shield structure. This structure physically divides the light guide member into separate zones, each corresponding to specific LED light sources. The segmentation creates clear boundaries between regions while maintaining manufacturing simplicity through modular design and straightforward assembly processes.
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 results in an inexpensive light emission display with clear boundaries and easy recognition of sound collection device functional status, reducing production costs and enhancing visual clarity.
Implementation Method 1
a light guide member that converts rays of incident light from a first face thereof to produce diffused light and emits the diffused light from a second face
Data Source
AI summary
A light emission display device according to an aspect of the present invention includes: a light guide member that converts rays of incident light from a back face thereof to produce diffused light and emits the diffused light from the front face; a plurality of point light sources that are arranged at intervals on a side of the back face of the light guide member, in which the light guide member includes a light shield structure that partitions the front face into a plurality of light emission regions each corresponding to at least one point light source of the plurality of point light sources immediately below the front face, such that transmission of the rays of light to an adjacent light emission region is reduced.