Illuminating Keyboard Light Guiding Plate Divergence Segments
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Solution Overview
Problem
Conventional illuminating keyboards require multiple light emitting diodes to achieve sufficient luminance and illuminance uniformity, which is challenging due to design constraints for lightweight, thin, and compact electronic products, limiting the accommodation space for light emitting components.
Innovation Solution
The use of a light guiding plate with an accommodating groove featuring first and second light divergence segments allows for the injection of light beams from two light emitting components, increasing the divergence angle to achieve uniform luminance and illuminance with fewer components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If multiple light emitting diodes are installed to provide sufficient luminance and illuminance uniformity, then the luminance and illuminance uniformity are improved, but the number of light emitting components and the space they occupy increase
Solution Approach 1:
The light guiding plate is segmented into multiple light guiding regions (first, second, third, and fourth light guiding regions) that guide light from a single light emitting component to different areas of the keyboard, achieving uniform illumination distribution without requiring multiple light emitting diodes
Solution Approach 2:
The patent utilizes the three-dimensional structure of the light guiding plate with varying thickness (thinner at edges, thicker at center) to control light propagation paths and achieve uniform illuminance distribution across the keyboard surface using fewer light emitting components
2Illumination intensity
If multiple light emitting diodes are installed to provide sufficient luminance and illuminance uniformity, then the luminance and illuminance uniformity are improved, but the accommodation space for light emitting components increases
Solution Approach 1:
The light guiding plate is divided into multiple functional regions that efficiently distribute light from a single source to cover the entire keyboard area, reducing the need for multiple light emitting components and their associated mounting spaces
Solution Approach 2:
The light guiding plate performs multiple functions: it guides light from the single light emitting component, distributes it uniformly across different keyboard areas, and controls the illuminance intensity, replacing what would traditionally require multiple specialized light emitting diodes
3Weight of moving object
If the keyboard is designed to be lightweight, thin, compact and small, then the portability is improved, but the accessible volume for interior functional modules is reduced
Solution Approach 1:
The light guiding plate is designed as a thin, plate-like structure with varying thickness that can be easily integrated into compact keyboard designs, providing efficient light distribution while maintaining a thin overall profile
Solution Approach 2:
The light guiding plate is segmented into multiple light guiding regions that maximize the utilization of limited space within the thin keyboard structure, enabling uniform illumination without requiring additional volume for multiple light emitting components
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 enables sufficient luminance and illuminance uniformity across the keyboard with only two light emitting components, addressing the space constraints and design limitations of compact electronic products.
Implementation Method 1
a light guiding plate, a first light emitting component and a second light emitting component
Implementation Method 2
The first light divergence segment is disposed on the first sidewall, and the second light divergence segment is disposed on the second sidewall. Light beams emitted from the first light emitting component are injected into the light guiding plate via the first light divergence segment
Data Source
AI summary
The present disclosure discloses an illuminating keyboard including a keyboard module and a light emitting module. The keyboard module has an opaque region. The light emitting module includes a light guiding plate, a first light emitting component and a second light emitting component. The light guiding plate includes an accommodating groove corresponding to the opaque region. The accommodating groove has a first sidewall, a second sidewall, a first light divergence segment and a second light divergence segment. The first light divergence segment and the second light divergence segment are disposed on the first sidewall and the second sidewall, respectively. The first light emitting component and the second light emitting component are located in the accommodating groove and are disposed toward the first sidewall and the second sidewall, respectively. The light beams are injected into the light guiding plate via the first and the second light divergence segment.