Notification Light Assembly Using Segmented Waveguides

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Solution Overview

Problem

Existing electronic devices face challenges in distinguishing between different types of visual notifications due to the limited range of colors and patterns that can be emitted by notification lights, leading to uncertainty about the nature of alerts, potentially causing important communications to be missed.

Innovation Solution

A light assembly comprising separate light sources for a background and patterned portions, using waveguides and pattern elements to create distinguishable visual notifications, allowing for a combination of colors and patterns to provide contextual alerts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single-color or limited-color LED notification light is used, then the device structure remains simple and power consumption is low, but the ability to distinguish between different notification types is insufficient

Engineering Contradiction:
Improvenotification differentiation capabilityVSAvoidlight assembly structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The notification light is divided into multiple independent light-emitting regions, each capable of emitting a specific color or pattern. This segmentation allows different notification types to be represented by different colored segments, enhancing differentiation capability while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the notification light are assigned different colors or emission characteristics tailored to specific notification types. This local quality approach allows each region to serve a specific function, improving the ability to distinguish between different alert categories without requiring a completely complex system.

Inventive Principle:
Principle #3Local quality

2Loss of information

If multiple light colors and patterns are used to represent different notification types, then notification differentiation is improved, but the device complexity and power consumption increase

Engineering Contradiction:
Improvenotification context informationVSAvoidpower consumption
Core Design Contradiction:
Loss of informationVSUse of energy by moving object

Solution Approach 1:

The notification light system dynamically adjusts which light-emitting regions are activated based on the type of notification received. Instead of all regions being constantly active, only the necessary segments are illuminated, reducing power consumption while maintaining full differentiation capability when needed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters (which specific light regions are active) based on the notification type. This allows the same physical hardware to convey multiple types of information by varying the activation state of different segments, maintaining information richness without proportionally increasing power consumption.

Inventive Principle:
Principle #35Parameter changes

3Object-affected harmful factors

If visual alerts are used instead of audible or physical alerts, then user disruption is reduced, but the ability to convey detailed notification information is limited

Engineering Contradiction:
Improveuser disruptionVSAvoidnotification detail information
Core Design Contradiction:
Object-affected harmful factorsVSLoss of information

Solution Approach 1:

The notification light transitions from a single-dimensional (single color or uniform pattern) alert system to a multi-dimensional system where different spatial segments can emit different colors or patterns simultaneously. This dimensional expansion allows visual alerts to convey more detailed information about notification types, urgency, and categories while maintaining the non-disruptive visual modality.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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

Enhances the ability to differentiate between various notification types, reducing uncertainty and ensuring that important alerts are not missed by providing a more effective visual notification system.

Implementation Method 1

using waveguides and pattern elements to create distinguishable visual notifications

Methodology Applied
Scientific EffectLight transmission through waveguide: Waveguide (optics)

Data Source

PatentEP2779601B1System and method for displaying visual notifications on an electronic device
Publication Date: 2017.11.29 BLACKBERRY LTD
  • EP2779601B1 patent drawingFigure 1
  • EP2779601B1 patent drawingFigure 2~4
  • EP2779601B1 patent drawingFigure 5

AI summary

A light assembly for providing a notification light on an electronic device is described. The light assembly comprises a first light source for providing a background portion for the notification light, a second light source for providing a patterned portion for the notification light, and at least one pattern element to generate the pattern portion.