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I've been working at Nokia for a long time in various positions. Last 3 years in technology marketing with full focus on energy and power consumption technologies and solutions.
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- Nokia Battery Monitor 2.0 Published
- Optimizing the right thing - power consumption breakdowns
- Nokia Reader saves battery
- Notifications API now available for all Qt developers
- Nokia Battery Monitor – blog post part 2/2
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- OVI Notifications API – intelligent way to stay connected to the network
- How to connect network?
- Energy saving tips via practical examples
- Color makes a difference
Color makes a difference
powersave_mode | 07 June, 2010 15:37
OLED (Organic Light Emitting Diode) displays are here today and people talk of them how brilliant those are. Oh Yes, those are brilliant and now this technology has also entered to mobile devices and therefore it has became relevant to developers who are designing UI SW. When it comes to power consumption, OLED has very unique characteristics vs. TFT(thin-film transistor) LCD’s. Key point being that power consumption varies a lot according to colors of the content in OLED.
We’ve measured 3.2" displays in Nokia with following results:
Figure: 3.2" OLED vs.LCD displays and power consumption in milliwatts [mW].
All white consumes 14x vs. all black screen in OLED! Content makes also difference in power consumption of LCD display but not that much.
Tip: Optimize colors for OLED. Prefer dark colors. Same optimizations apply today for Nokia’s TFT LCD displays. These are technologies used in all Nokia smart phones.
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