Dual-Layer Display Control for Wearable Power Management

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Solution Overview

Problem

Conventional display systems for wearable devices face challenges in power consumption and efficient information display, particularly when switching between different modes and displaying various types of information on multiple layers of displays.

Innovation Solution

A display control system with a first and second display unit, where the second unit is layered on the first, using a polymer network liquid crystal panel for monochrome display and an active matrix TFT liquid crystal panel for color display, allowing for efficient power management by activating the first unit for additional information and deactivating the second unit when necessary, with a cooperative processing unit to manage display modes and reduce power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If the second display unit (polymer network liquid crystal panel) is used for basic information display, then power consumption is reduced, but display functionality is limited to monochrome and basic content

Engineering Contradiction:

Improvepower consumptionVSAvoiddisplay functionality

Core Design Contradiction:

Use of energy by moving objectVSAdaptability or versatility

Solution Approach 1:

The display system is segmented into two independent display units: a first display unit (active matrix TFT liquid crystal panel) for high-functionality color display and a second display unit (polymer network liquid crystal panel) for low-power monochrome display. Each unit can operate independently, allowing the system to segment display tasks based on power consumption and functionality requirements.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The cooperative processing unit provides multi-functionality by managing both display units and enabling flexible operation modes. The system can universally handle various display requirements by selecting appropriate units or combining them, making the overall system adaptable to different functional needs while maintaining low power consumption.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If both display units are activated simultaneously, then complete information display is achieved, but power consumption increases

Engineering Contradiction:

Improveinformation display completenessVSAvoidpower consumption

Core Design Contradiction:

Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The system dynamically adjusts which display units are activated based on real-time requirements. The cooperative processing unit determines the appropriate display mode (first display unit only, second display unit only, or both) and switches between them, making the display configuration dynamic rather than static to balance information completeness and power consumption.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

Different display units provide different qualities of display information. The first display unit provides high-quality color and detailed information, while the second display unit provides basic monochrome information with lower power consumption. The system selectively uses each unit's specific quality characteristics based on needs.

Inventive Principle:

Principle #3Local quality

3Adaptability or versatility

If display mode switching is implemented, then adaptability to different display requirements is improved, but user discomfort during transitions may occur

Engineering Contradiction:

Improvedisplay mode flexibilityVSAvoiduser discomfort during transitions

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The cooperative processing unit performs preliminary actions by preparing display content and managing transition timing before actual mode switching occurs. This ensures smooth transitions and prevents user discomfort by anticipating and preparing for display changes rather than executing abrupt switches.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system incorporates feedback mechanisms where the cooperative processing unit monitors display requirements and user interaction patterns to determine optimal switching timing and modes. This feedback loop helps minimize user discomfort by adapting display transitions to user behavior and preferences.

Inventive Principle:

Principle #23Feedback

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

Enables efficient power consumption by limiting display on the second unit to basic information and activating the first unit for additional content, allowing seamless mode switching and reducing user discomfort during display transitions while maintaining low power usage.

Implementation Method 1

using a polymer network liquid crystal panel for monochrome display

Methodology Applied

Scientific EffectLiquid crystal effect: Liquid Crystals

Implementation Method 2

an active matrix TFT liquid crystal panel for color display

Methodology Applied

Scientific EffectLiquid crystal effect: Liquid Crystals

Data Source

PatentUS10416714B2Display control device, and non-transitory computer-readable recording medium for providing selective display of information on multiple displays

Publication Date: 2019.09.17 CASIO COMPUTER CO LTD

AI summary

A display control device comprising a first display, a second display, a first processor, and a second processor, wherein the first processor controls the first display to display a first information, and wherein the second processor controls the second display to display second information which is undisplayable on the first display.