Relationship background color of an app x energy efficiency

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Relationship background color of an app x energy efficiency

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#1 by (7 votes)

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Thinking about a mobile application, what is the best color palette in relation to energy consumption?

For example, let's say I'm developing an app and want to focus on the app's battery consumption. Imagining an ideal environment in which brightness and mobile data consumption do not affect the time of the load, what is the best color for the background of this supposed application? What is the most efficient color, a black background or darker tones or a white background or lighter tones?

In other words (and roughly speaking): Is more energy consumed to produce a totally black screen or a totally white screen? Is there such a differentiation?

In the issue I discard any kind of UX, I only question the issues of efficiency and pure consumption.

android mobile ios

asked by anonymous 25.04.2018 / 00:21

1 answer

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score 7 · Accepted Answer

Depends on screen technology.

Backlit screens spend more on black, led screens on the "pixels" spend more on white, but both are irrelevant near other factors.

See this image, released by a well-known manufacturer:

Foryoutounderstandbetter:

AconventionalLCDhasawhitebackground,alwaysilluminated.TheLCDitselfistransparentandthepixels"cap" the white light when they are energized. On the LCD, the power "cap" the light.

An OLED screen, in turn, is black, and each pixel is an independent LED. They light up when the energy passes through them. In OLED, the energy becomes light.

Relevance:

In practice, the difference does not justify the design concern.

First, the fact that you have no control over this as a programmer. There is no reliable way to identify this, and the practical difference is derisory in everyday life.

A poorly done loop is more problematic than the color of the screen. Better to learn how to deal with the idle states of the processor, save processing resources and connectivity, something that every good developer manual usually covers.

The color of the screen, on the other hand, has to make life easier for the user to spend less time looking for what they want. There is no point in saving a negligible amount of energy if the user spends more time using the application.

This reminds me of those "black pixel" campaigns that caused more damage than solution with the advent of backlit LCD monitors. p>