Display Lighting Apparatus with Independent LED Control

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Solution Overview

Problem

Electronic devices with illuminated displays often fail to provide visual feedback to users regarding input recognition, leading to user confusion and a suboptimal experience.

Innovation Solution

The implementation of a lighting apparatus with independently controllable light sources that provide sequential and progressive visual feedback through light source controllers, allowing for distinct illumination patterns in response to user interactions, such as page turns or selections, to confirm input recognition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single light source controller uniformly controls all light sources, then the device structure is simple, but visual feedback capability is lost

Engineering Contradiction:
Improvelight source control structureVSAvoidvisual feedback
Core Design Contradiction:
Device complexityVSLoss of information

Solution Approach 1:

The patent divides the light source control system into multiple independently controllable light sources, each managed by its own controller or control channel. This segmentation enables differentiated illumination patterns across the display surface, providing visual feedback about input recognition while maintaining manageable system complexity through modular control architecture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from uniform temporal control to spatial-temporal control by enabling independent control of multiple light sources positioned at different locations. This adds a spatial dimension to the control capability, allowing sequential or patterned illumination that communicates device state information without requiring additional hardware components.

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

2Loss of information

If multiple independent light source controllers are implemented, then visual feedback capability is enhanced, but device complexity increases

Engineering Contradiction:
Improvevisual feedbackVSAvoidlight source control structure
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent designs the light source control system to serve multiple functions: primary display illumination and secondary visual feedback communication. The same independently controllable light sources used for displaying content also provide input recognition feedback through coordinated illumination patterns, eliminating the need for separate feedback indicators and reducing overall system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The light source control system provides self-service by using its own illumination capability to communicate device state information. Rather than requiring separate sensors or indicators, the existing light sources serve dual purposes, reducing component count and simplifying the control architecture while maintaining enhanced visual feedback functionality.

Inventive Principle:
Principle #25Self-service

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 user experience by clearly indicating input recognition through customizable and noticeable visual cues, improving interaction feedback and reducing user confusion.

Implementation Method 1

one or more light sources, such as light emitting diodes (LEDs), in a lighting apparatus

Methodology Applied
Scientific EffectLight Emitting Diode: Light Emitting Diode

Data Source

PatentUS9299320B1Providing visual feedback on a display
Publication Date: 2016.03.29 AMAZON TECH INC
  • US9299320B1 patent drawing
  • US9299320B1 patent drawing
  • US9299320B1 patent drawing

AI summary

Techniques for providing visual feedback on a display of an electronic device by sequentially and/or independently controlling the illumination of the lighting output by the display. In some implementations, the techniques may be employed following an interaction with the device having one or more light source controllers instructing one or more light sources, such as Light Emitting Diodes (LEDs), in a lighting apparatus, such as for a display which renders content on the device. For instance, a lightguide of the lighting apparatus may sequentially receive light from the one or more light sources as directed by the one or more light source controllers and may direct the light to provide illumination for a display. In some cases, the display may be a reflective display that is front-lit by the lighting apparatus. In other cases, the display may be a backlit display that is backlit by the lighting apparatus.