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Moto 360 (2014): Flicker Free

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Release in September 2014, the Moto 360 is Motorola’s first generation smartwatch.  It sports are relatively small 40mm (1.5 inches) screen that given its size is unlikely to contribute much to symptoms of those most sensitive.  Regardless, we decided to investigate. FLICKER We discovered no measurable flicker across the entire brightness range of the Moto 360. Below is the screen output between at screen brightness settings “1” through “5”. COLOR SPECTRUM OUTPUT Coming soon. LUMINANCE Coming soon. POLARITY You may think of light as photons traveling in the shape of waves, but unlike waves in an ocean, photons can oscillate in all … Continue reading Moto 360 (2014): Flicker Free

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Asus Zenfone 2: a pleasant surprise

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Launched in early 2015, the Asus Zenfone 2 is an excellent mid-range phone developed by a company not usually associated with phones.  The Zenfone 2 sports an Intel Atom CPU, a large 5.5″ full HD screen and unlocked for all carriers – all at disruptively low price of $200-$300USD.  The Asus Zenfone 2 should not be mistaken for budget phones such as the “Zenfone 2 Laser”, “Zenfone 2 Zoom” and “Zenfone 2 Max”. Today we examine the Zenfone 2 model ZE551ML. FLICKER We discovered no measurable flicker across the entire brightness range.  Included below are just two reference points though the … Continue reading Asus Zenfone 2: a pleasant surprise

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Nexus 7 (2013) Review: An Introduction to PWM Flicker

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Despite three aging three years since its release, the Google Nexus 7 (2013) continues to be relevant as a well-performing tablet at a rock bottom price.  This tablet is still widely available for purchase new and second-hand at a reasonable cost.  The 2013 model can be distinguished from the 2012 model by the lack of silver-colored metal ridge around the circumference of the device. FLICKER Our measurements indicate the device uses pulse-width modulation (“PWM”) to modulate screen brightness.  PWM is a method in which power supplied to the backlight is cycled on and off at such a high frequency that … Continue reading Nexus 7 (2013) Review: An Introduction to PWM Flicker