Illuminant Keyboard Protruding Walls Light Control
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Solution Overview
Problem
Illuminant keyboards face the challenge of reducing light intensity exiting from the area surrounding transparent keycaps, which interferes with the visual effect and user experience, as increasing light intensity for better keycap pattern identification also increases unwanted light emission.
Innovation Solution
Incorporating a transparent plate with protruding walls between the light source and transparent keycap, where the protruding walls are made of UV adhesive or opaque material, forming a second light traveling gap to reduce the intensity of light emitted around the keycap, and optionally using a transparent prism to change light direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the intensity of light proceeding to the transparent keycap is increased to improve keycap pattern identification, then the identification effect is improved, but the intensity of light exiting from the area surrounding the transparent keycap also increases, deteriorating the overall visual effect
Solution Approach 1:
The patent divides the light path into separate channels using protruding walls that create distinct light traveling gaps. One gap directs light to the transparent keycap for pattern identification, while another gap directs light away from the surrounding area, preventing unwanted light emission. This segmentation allows independent control of light intensity to different regions.
Solution Approach 2:
The patent applies different light transmission properties to different regions by using protruding walls with specific optical characteristics. The walls are designed to allow light to pass through certain areas (toward the keycap) while blocking or redirecting light in other areas (surrounding region), creating localized light quality control to resolve the contradiction between illumination needs and visual effect.
2Measurement precision
If the intensity of light proceeding to the transparent keycap is increased to improve identification effect, then the identification effect is improved, but the overall visual effect of the illuminant keyboard is deteriorated
Solution Approach 1:
The protruding walls create segmented light paths that separate the illumination function (improving keycap visibility) from the aesthetic function (maintaining overall visual effect). By directing light through specific gaps, the system achieves high keycap illumination without proportionally increasing light in surrounding areas, thus maintaining visual balance.
3Measurement precision
If the intensity of light proceeding to the transparent keycap is increased, then the identification effect is improved, but it may interfere with the keyboard user when viewing the transparent keycap
Solution Approach 1:
The patent creates localized light quality control by using protruding walls to direct light precisely where needed (through the transparent keycap) while preventing light from reaching areas that would cause viewing interference. This localized control allows high intensity illumination of the keycap pattern without creating glare or interference in the user's viewing path.
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 reduces the intensity of halo light around the transparent keycap, enhancing the visual effect by minimizing light interference and improving keycap pattern visibility without compromising the overall illumination.
Implementation Method 1
Coating a UV adhesive layer on the transparent plate (or the planar light source). Sequentially performing a rubbing treatment and a curing treatment on the UV adhesive to form the protruding walls on the transparent plate (or the planar light source).
Implementation Method 2
The planar light source comprises a transparent prism located in the second light traveling gap between adjacent protruding walls for changing the direction of the light passing through the transparent prism to substantially proceeding towards the keycap pattern of the transparent keycap.
Data Source
AI summary
An illuminant keyboard and a method thereof are provided. A plurality of protruding walls substantially parallel to each other are disposed on one of an upper surface of the transparent plate, a lower surface of the transparent plate and an upper surface of the planar light source. The protruding walls may be either I-shaped, L-shaped, U-shaped or square-shaped. When the protruding walls are made of an opaque material, the protruding walls can effectively reduce the intensity of the halo light surrounding a transparent keycap. When the protruding walls are made of a transparent material with a designated color, the halo light surrounding the keycap will be modulated with the designated color.