Display Color Transformation for Power Saving

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Solution Overview

Problem

Electronic devices face high power consumption when displaying user interfaces, particularly due to the brightness and color of the display, with certain colors like white and blue being more power-intensive, leading to increased energy usage.

Innovation Solution

A display method that performs color transformation on drawing elements based on reference colors to reduce power consumption, where the electronic device determines whether to apply color transformation based on the size, color, or quantity of colors of the drawing element, transforming background elements into the most power-saving colors and foreground elements into distinct colors to maintain visibility while minimizing energy use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If the display uses high brightness and power-consuming colors (white, blue) to ensure good visual quality, then the display quality is improved, but the power consumption increases

Engineering Contradiction:

Improvedisplay brightnessVSAvoidpower consumption

Core Design Contradiction:

Illumination intensityVSUse of energy by moving object

Solution Approach 1:

The patent applies different color transformation strategies to different drawing elements based on their role (foreground vs background). Background elements are transformed to power-saving colors while foreground elements maintain better color fidelity, creating local quality differences that balance power consumption and visual quality

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent changes the color parameters of drawing elements dynamically based on power saving mode settings. It transforms colors by adjusting hue, saturation, and brightness parameters to convert high-power colors (white, blue) into low-power colors (black, green, red) while attempting to preserve visual distinction

Inventive Principle:

Principle #35Parameter changes

2Use of energy by moving object

If color transformation is applied to all drawing elements to save power, then power consumption is reduced, but the visual distinction between foreground and background elements deteriorates

Engineering Contradiction:

Improvepower consumptionVSAvoidvisual distinction

Core Design Contradiction:

Use of energy by moving objectVSLoss of information

Solution Approach 1:

The patent applies different color transformation intensities to different elements: background elements undergo full color transformation to power-saving colors, while foreground elements receive milder transformation to maintain visual distinction. This local differentiation resolves the contradiction between power saving and information preservation

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

Instead of transforming all elements uniformly, the patent inverts the approach by preserving foreground element characteristics while transforming background elements. This inversion strategy ensures that visually critical elements maintain their identity while less critical background elements contribute to power savings

Inventive Principle:

Principle #13The other way round (Inversion)

3Use of energy by moving object

If the display uses power-saving colors (black, green, red) to reduce power consumption, then power consumption is reduced, but the display quality and visual appeal deteriorate

Engineering Contradiction:

Improvepower consumptionVSAvoiddisplay quality

Core Design Contradiction:

Use of energy by moving objectVSIllumination intensity

Solution Approach 1:

The patent creates local quality variations by applying power-saving color transformation selectively to background elements while preserving foreground element colors. This ensures that visually important areas maintain quality while less important areas contribute to power savings

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent introduces dynamic adaptability by allowing the system to switch between different display modes (normal mode and power-saving mode) and by dynamically adjusting color transformation based on the specific drawing element's importance and role in the interface

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS12028477B2Display method applied to electronic device, graphical user interface, and electronic device

Publication Date: 2024.07.02 HUAWEI TECH CO LTD

AI summary

A display method applied to an electronic device, a graphical user interface, and an electronic device are provided. The electronic device may perform, based on a most power saving display color of a display, color transformation on an interface element to be displayed on the display, so as to change a color of the interface element to be displayed on the display, thereby reducing power consumption of the display. In addition, in a color transformation process, color fidelity is performed on an interface element that includes rich information, so that rich meanings represented by the interface element can be preserved. In addition, different color transformations are performed on drawing elements that constitute the interface element and that are used as the foreground and the background, so as to distinguish between the foreground and the background that are adjacent to each other and that are obtained after the color transformations.