Keyboard Illumination Device Using Light Tubes

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Solution Overview

Problem

Current illuminating keyboards have high manufacturing costs and complex assembly processes due to their structural complexity, which hinders widespread adoption.

Innovation Solution

An illuminating keyboard design featuring an illumination device with LEDs and a transparent light tube, secured by positioning elements, which directs light upwards to illuminate keys effectively without the need for extensive supporting structures, reducing complexity and cost.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If a complex structural arrangement with multiple plates and supporting structures is used to provide illumination to the keyboard, then the illumination effect is achieved, but the manufacturing cost increases and the assembly process becomes complex

Engineering Contradiction:
Improveillumination effectVSAvoidstructural complexity
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The patent extracts and removes unnecessary supporting structures and multiple plates from the conventional keyboard assembly. By eliminating the assembly board, thin film circuit board, plastic plate, light enhancing plate, and illuminator positioning plate, the invention simplifies the overall structure while maintaining the illumination function through a streamlined design with fewer components.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent merges multiple separate components into a more integrated structure. The illumination device is directly mounted on the base without requiring separate positioning plates or multiple supporting structures. The light guide plate and diffuse plate are integrated into a unified illumination system that reduces the number of assembly steps and structural elements.

Inventive Principle:
Principle #5Merging (Combining)

2Illumination intensity

If multiple plates and supporting structures are used in the keyboard assembly, then the illumination function is provided, but the manufacturing cost becomes high

Engineering Contradiction:
Improveillumination functionVSAvoidmanufacturing cost
Core Design Contradiction:
Illumination intensityVSEase of manufacture

Solution Approach 1:

The patent removes unnecessary components such as the assembly board, thin film circuit board, plastic plate, and illuminator positioning plate from the conventional design. This extraction of redundant parts reduces material costs, simplifies manufacturing processes, and lowers overall production expenses while preserving the essential illumination function.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent employs simpler, more cost-effective materials and components that can be easily manufactured and assembled. The illumination device uses standard LED components and simple light guide structures that are inexpensive to produce, replacing expensive multi-plate assemblies with affordable alternatives that achieve the same functional result.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Illumination intensity

If extensive supporting structures are used to mount the illumination device, then the illumination is provided, but the assembly process requires sophisticated efforts

Engineering Contradiction:
Improveillumination provisionVSAvoidassembly process
Core Design Contradiction:
Illumination intensityVSEase of manufacture

Solution Approach 1:

The patent eliminates the need for extensive supporting structures by removing the assembly board, thin film circuit board, plastic plate, and illuminator positioning plate. This extraction simplifies the assembly process to basic mounting steps where the illumination device is directly installed on the base, requiring minimal assembly efforts and no sophisticated assembly procedures.

Inventive Principle:
Principle #2Taking out (Extraction)

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 provides clear key illumination in dark environments while simplifying the manufacturing process and reducing costs by integrating the illumination device directly under the assembly board with a secure and efficient light distribution system.

Implementation Method 1

The illumination device has a circuit board, multiple light emitting diodes connected to the circuit board, an encapsulation enclosing the light emitting diodes and a light tube having two ends respectively connected to the two light emitting diodes

Methodology Applied
Scientific EffectLight emitting diode: Light Emitting Diode

Data Source

PatentUS7301112B1Illuminating keyboard
Publication Date: 2007.11.27 TSAI HUO LU
  • US7301112B1 patent drawing
  • US7301112B1 patent drawing
  • US7301112B1 patent drawing

AI summary

An illuminating keyboard includes an illumination device mounted between the assembly board and the base. The illumination device is composed of a circuit board, two light emitting diodes on top of the circuit board and respectively having thereon an encapsulation and a light tube having two ends respectively connected to a corresponding one of the two light emitting diodes so that light from the two light emitting diodes is able to emit through the assembly board, the thin film circuit board and the plastic plate to light keys on top of the plastic plate.