This post took longer time since the launch of another disruptive product from THE APPLE needs far more introspection that otherwise required.
It’s something we dwelled on while finalizing the specifications for the upcoming Adam. The option we had was 1920×1200 in 10 inch for the same thickness. Only thing which was to be handled was to move the LCD driving circuit to the main mother board, which was also in favor of what we wanted to do since we have a very special VEE (Visual Enhancement Engine) for controlling the display. But, there were 2 problems, power requirement and availability of the apps to run on such a resolution.
Our specs want the second to be charged in under 2.5 hours. With 25Whr battery, that would mean 2A on 5V. 3 important observations here. First, it can be charged with a normal laptop drawing around 500mA (using a micro USB cable). Second, any mobile charger with mirco-USB charger can charge it (unlike proprietary charger everyone needs to carry for most of the tablets, including 1). And third, leads to reduction in number of components. Micro-USB charging is much closer to EU’s charging specifications.
Bumping up the resolution would need 45Whr battery. The new iPad has it. Some hard decisions made were, heavier devices (more battery = more weight), more heat and worse more charging time. A 10W charger will charge it in ideally 4.5 hours. If you connect it with Mac it will take more than 18-20 hours! (5V and 500mA). All of this was a BIG no for us, but doens’t seem to be so for new iPad’s users.
Other was the availability of the applications. If you don’t have applications to make use of it, looking only at a beautiful homescreen won’t make sense. Just to give you an idea, even 1080p movie on this screen needs to be scaled up!
Higher-resolution screen is there on our roadmap, but not yet. Android eco-system is not ready, and instead of bumping up the battery to support higher res screen, we’d rather focus on how to cut the battery even further to support a higher resolution screen.
In the next blog I will introduce the VEE and a DPO (Display Power Optimizer) technologies which are the part of our next product. If implemented correctly it can result an improvement in between 20-40% on LCD power consumption.