Smartphone technology

In addition to placing and receiving cellular callsthe touchscreen-equipped Simon could send and receive faxes and emails. It included an address book, calendar, appointment scheduler, calculator, world time clock, and notepad, as well as other visionary mobile applications such as maps, stock reports and news. Inwhile he was working with Boeing in Huntsville, AlabamaParaskevakos demonstrated a transmitter and receiver that provided additional ways to communicate with remote equipment. This formed the original basis for what is now known as caller ID.

Smartphone technology

Introduction and Series Overview A key element in the success of all smartphones and mobile devices is the quality and performance of their display.

This article objectively compares Smartphone technology display performance of five leading smartphone LCD and OLED displays based on extensive Smartphone technology lab measurements together with extensive side-by-side visual tests, incisive evaluations and comparisons, nicely summarized in the Comparison Table and Results Highlights below.

Since smartphones are being used to view photos, videos and a wide range of multimedia content we have evaluated their picture quality on the same terms as HDTVs.

Smartphone technology

In fact, one of the smartphones that we tested has better picture quality than most living room HDTVs — so the bar is already quite high for smartphones. But there is still plenty of room for improvement and we will show and tell Smartphone technology where — we have included images that have been mathematically processed to correct color and imaging errors on each smartphone so you can compare them to the originals.

Part II of this series will be on glare, screen reflectance, ambient lighting and sensors, automatic screen brightness controls and using them to improve picture quality, screen readability, viewing comfort, reduce display power and increase battery run time.

These were most likely intentional tradeoffs made by Apple to increase screen brightness, power efficiency and battery run time. We include a dedicated comparison with the iPhone 3GS below.

Click here for a discussion on the Retina Display. The AM stands for Active Matrix, but all smartphone displays have that. What is particularly impressive is how rapidly Samsung has been improving their OLED technology, and the Galaxy S delivered top performance in many of our test categories.

Some of areas where it fell short were the result of manufacturer calibration and OS issues rather than fundamental problems with the OLED technology itself. Google confirmed that some of the display problems we discovered are caused by Android 2. Part II will also discuss problems with the Automatic Brightness control on the Galaxy S, which should also apply to other Android phones.

But for typical web and app content, which typically use bright backgrounds, the power balance is still decisively in the favor of LCDs by more than 2 to 1 in our tests — again, that should change as OLEDs continue to improve… The big question remaining for OLEDs and not covered by our tests is whether the previous uneven aging over time for the red-green-blue OLED sub-pixels has been solved.

Smartphone technology

In our lab tests the Galaxy S has a screen reflectance of 4. Particularly impressive is the very low screen reflectance, which is among the lowest we have ever measured — outdoors it can have a significant impact on screen visibility. The over-saturated gaudy colors are still there — they need to be properly managed and can be used constructively in a calibrated fashion to counteract the effects of glare from ambient light Part II.

A smartphone offers the ability to configure the device to your particular way of doing things. The software in the old-style flip phones offers only limited choices for reconfiguration, forcing you to adapt to the way they are set up. Huawei's latest smartphone can take photos in near-dark conditions without using its flash or a tripod. The P20 Pro takes exposures lasting up to six seconds to get enough light. It then uses. TI brings leading Bluetooth® Smart technology to automobiles for smartphone and wire-replacement applications SimpleLink™ CCQ1 wireless microcontroller delivers new automotive use cases through low power, reduced cost and simplified design.

It has double the resolution, a 26 percent brighter screen, 24 percent lower screen reflectance, and 64 percent greater Contrast under bright ambient light, plus it has 8 times the Contrast under dim ambient light.

On the other hand, the iPhone 4 has the same reduced color gamut as the iPhone 3GS, producing under saturated somewhat washed-out colors.

The iPhone 4 has gone to the other extreme and has too much image contrast, which gives its images a punchier look and also partially compensates for its smaller color gamut.

Lastly, the iPhone 4 display consumes only half the power of the iPhone 3GS display. Google confirmed that the some of the display problems we discovered afterwards were caused by upgrading to Android 2. Decidedly in last place for the five smartphone displays tested.

The iPhone 4 by far has the brightest and sharpest display and is the most power efficient of the displays. The Motorola Droid by far has the best picture quality and accuracy.

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The Samsung Galaxy S by far has the lowest screen reflectance and largest Contrast for both bright and dark ambient lighting, and the best viewing angles. On the flip side, the iPhone 4 has a weak color gamut and viewing angles, the Motorola Droid has weak screen reflectance and viewing angles, and the Samsung Galaxy S has lower brightness, excessive color saturation, higher power consumption and some sharpness issues.

This article is a lite version of our intensive scientific analysis of smartphone and mobile displays — before the benefits of our advanced mathematical DisplayMate Display Optimization Technologywhich can correct or improve many of the deficiencies — including higher calibrated brightness, power efficiency, effective screen contrast, picture quality and color and gray scale accuracy under both bright and dim ambient light, and much more.

If you are a display or product manufacturer and want our expertise and technology to turn your display into a spectacular one to surpass your competition then Contact DisplayMate Technologies to learn more. Note that we are testing and evaluating the displays with whatever hardware, firmware, OS and software are provided by the smartphone manufacturers.

Note that the Categories in the Table are not intended to have equal weighting in case you plan on scoring the results.

For details, measurements, in-depth explanations and analysis see the Article Links below for the individual dedicated articles for each smartphone.May 26,  · The summer travel season will soon be upon us, with notions of escape, unplugging and faraway lands.

But while the idea of disconnecting from technology when abroad seems relaxing, the .


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TI brings leading Bluetooth® Smart technology to automobiles for smartphone and wire-replacement applications SimpleLink™ CCQ1 wireless microcontroller delivers new automotive use cases through low power, reduced cost and simplified design. Nearly two-thirds of Americans now own a smartphone.

19% of Americans rely to some extent on a smartphone for internet access, but the connections to digital resources that they offer are tenuous for many of these users. Blog Posts: Smartphone technology Android bites Apple in UK, iPhone X marks the spot in China The smartphone sales results are in: Android continues to bite chunks out of Apple in UK and France.

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