Luminous Touch Pad Module Stack Structure for Bright Light Ring
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Solution Overview
Problem
Conventional luminous touch pad modules have a non-functional area due to the external placement of the light source, which makes it difficult to design a bright light ring and multilayered luminous effects.
Innovation Solution
The design incorporates multiple light guide plates and light-emitting elements arranged in a way that light beams are transmitted through these elements to create a bright light ring and multilayered luminous effects, with light-emitting elements positioned both above and below the touch sensing circuit board, and around the touch member, to eliminate the need for a light-shading decorative plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the light source is individually located outside the stack structure of the luminous touch pad module, then the light source can be installed separately, but it results in a non-functional area and makes it difficult to design a bright light ring
Solution Approach 1:
The patent integrates the light-emitting elements directly into the stack structure of the touch pad module, merging the lighting function with the existing structural components. This eliminates the need for separate light source installation and removes non-functional areas, as the light-emitting elements are positioned within the functional stack layers.
Solution Approach 2:
The patent positions light-emitting elements at multiple locations including above and below the touch sensing circuit board, utilizing three-dimensional space within the stack structure. This dimensional approach allows light to be emitted from multiple directions, creating a bright light ring effect while maximizing the use of available space without adding external components.
2Device complexity
If the light source is individually located outside the stack structure, then the structure can be simplified, but it creates a non-functional area that reduces the overall functionality
Solution Approach 1:
The patent makes the stack structure serve multiple functions by integrating light-emitting elements within it. The same structural layers that provide mechanical support and touch sensing functionality also serve as the light emission pathway, creating a multi-functional design that eliminates non-functional areas while maintaining structural simplicity.
Solution Approach 2:
The lighting function is merged with the existing stack structure components, so that the structural elements simultaneously provide mechanical support, touch sensing, and light emission functions. This combination increases functional versatility without adding separate light source installations.
3Object-affected harmful factors
If external light-shading decorative plate is installed over the light source, then the light source is covered, but it creates a non-functional area and complicates the structure
Solution Approach 1:
The patent removes the need for external light-shading decorative plates by extracting the light control function and integrating it directly into the stack structure. The light-emitting elements are positioned and oriented within the stack to provide inherent light control, eliminating the requirement for separate shading components.
Solution Approach 2:
The light control function is merged with the structural components of the stack, so that the same elements that provide mechanical support and light emission also control the direction and distribution of light. This integration eliminates non-functional areas while maintaining effective light control.
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 allows for a bright light ring to be created around the periphery of the touch pad and provides a multilayered luminous effect, enhancing the user experience by eliminating non-functional areas and improving the display of virtual keypads and symbols.
Implementation Method 1
The light guide plate 12 is arranged between the touch sensing circuit board 13 and the touch member 11. The light source 14 emits a light beam to the light guide plate 12. After the beam emitted by the light source 14 is transmitted through the light guide plate 12, the light beam is exited to the touch member 11 and outputted to the surroundings.
Implementation Method 2
The at least one first light-emitting element is located over the touch sensing circuit board. The at least one first light-emitting element is aligned with the first light guide plate. A light beam emitted by the at least one first light-emitting element is transmitted to the touch member through the first light guide plate.
Data Source
AI summary
A luminous touch pad module includes a touch member, a touch sensing circuit board, a first light guide plate, a second light guide plate, a first light-emitting element, a first light-guiding element and a second light-emitting element. The touch member, the second light guide plate, the first light guide plate and the touch sensing circuit board are sequentially arranged from top to bottom. The first light-emitting element is aligned with the first light guide plate. The second light-emitting element is located under the touch sensing circuit board. The second light-emitting element is aligned with the first light-guiding element. A light beam emitted by the first light-emitting element is transmitted to the touch member through the first light guide plate. A light beam emitted by the second light-emitting element is transmitted to the touch member through the first light-guiding element and the second light guide plate sequentially.