Wall-Mounted Control Screen Edge Backlight With Light Guide Strip
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Solution Overview
Problem
Existing central control screens for smart homes are mounted on walls without decorative effects, leading to a dull and unatmospheric appearance.
Innovation Solution
A backlight structure is integrated into the edge of the central control screen, comprising light-emitting lamp beads, a lamp plate, and a special-shaped light guide strip, which refracts and scatters light to enhance the aesthetic appeal by emitting colorful light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a central control screen is mounted on a wall without additional decorative components, then the device complexity is reduced and manufacturing is simplified, but the visual appeal and atmospheric effect deteriorate
Solution Approach 1:
The patent combines the backlight structure with the central control screen by integrating the light guide strip into the screen's border. The light guide strip is embedded within the existing screen structure, merging the decorative lighting function with the display device itself, thereby enhancing visual appeal without significantly increasing manufacturing complexity
Solution Approach 2:
The light guide strip serves multiple functions: it provides structural support as part of the screen border, acts as a light guide for LED illumination, and creates a decorative atmospheric effect. This multi-functionality allows a single component to address both manufacturing simplicity and visual appeal requirements
2Shape
If a backlight structure with light guide strip is added to the central control screen, then the visual appeal and atmospheric effect are improved, but the device complexity increases
Solution Approach 1:
The backlight system is segmented into distinct functional components: LED light sources, light guide strip, and light emergent openings. This segmentation allows each component to be optimized independently and assembled into the screen border, managing structural complexity through modular design
Solution Approach 2:
The light guide strip acts as an intermediary component that transfers light from the LED sources to the emergent openings on the screen border. This intermediary element simplifies the overall structure by providing a straightforward light transmission path rather than requiring complex optical systems
3Illumination intensity
If light-emitting lamp beads are disposed on the lamp plate, then the light emission function is achieved, but the manufacturing precision requirements increase due to the need for precise light guide strip grooves and component alignment
Solution Approach 1:
The light guide strip features localized grooves with specific cross-sectional shapes designed to optimize light coupling at the exact location where LEDs are mounted on the lamp plate. This local quality enhancement ensures efficient light transmission without requiring high precision across the entire component structure
Solution Approach 2:
The groove cross-sectional shape parameters in the light guide strip are optimized to match the light emission characteristics of the LED lamp beads. By adjusting these geometric parameters, the system achieves effective light coupling with relaxed tolerance requirements, reducing manufacturing precision demands
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 backlight structure enhances the visual appeal of the central control screen by providing a vibrant and diffused light effect, improving the overall atmosphere.
Implementation Method 1
light emitted by the light-emitting lamp beads enters an interior of the special-shaped light guide strip via the light incident surface disposed on the special-shaped light guide strip, and is then refracted and scattered to the light emergent surface
Implementation Method 2
light emitted by the light-emitting lamp beads enters an interior of the special-shaped light guide strip via the light incident surface disposed on the special-shaped light guide strip, and is then refracted and scattered to the light emergent surface
Implementation Method 3
the light emergent surface is provided as a frosted matte surface
Data Source
AI summary
A backlight structure and a wall-mounted central control screen. The backlight structure is disposed on an edge of an electronic device, and includes: light-emitting lamp beads, a lamp plate, and a special-shaped light guide strip, wherein the special-shaped light guide strip is provided with a straight groove in an extending direction thereof, a surface of the special-shaped light guide strip provided with the straight groove is abutted against the lamp plate to subsequently form a light source space for accommodating the light-emitting lamp beads, the special-shaped light guide strip includes a light incident surface and a light emergent surface, the light incident surface is disposed inside the light source space, and light emitted by the light-emitting lamp beads is towards the light incident surface, and the light emergent surface is located on an edge surface of the electronic device.