LG Nexus 5 - Screen
Like the Samsung Galaxy S4 and HTC
One, the Google Nexus 5 has a Full HD
screen of 1,920 x 1,080 pixels. Spread
across the phone's 5-inches that get you
pixel density of 445 ppi. Increases in
pixel density figures become a case of
diminishing returns in most cases once
you get above the 326ppi 'Retina'
standard Apple popularized with the
iPhone 4 back in 2010. But nevertheless,
the Nexus 5 display is immaculately
sharp.
The Nexus 5 uses an IPS display, the
same type seen in the iPhone 5S.
Viewing angles are perfect, and there's
immediacy to the display that marks it
out as a true top-end screen. Lower-end
screens tend to appear a little 'recessed',
featuring more discrete screen layers,
reducing contrast and image pop. What
we're most glad about, though, is how
much better color reproduction is in the
Nexus 5, compared to the Nexus 4. LG
has clearly been working on its screen
calibration skills since that phone,
because colors are better-saturated, and
without any of the oversaturated reds
that are often apparent in AMOLEDtype screens. Outdoors visibility is solid,
too. The same high-end screen
architecture that makes images look
super-lively indoors makes them avoid
becoming too washed out outdoors. Top
brightness is good rather than truly
remarkable, but in actual use we had no
complaints with what the screen is
capable of.
It's a corker. There’s just one slight
complaint. The Nexus 5's screen doesn't
have insanely fast refresh rates. Moving
quickly up and down Android 4.4's
menus does leave a tiny trail. The effect
is very minor, though.
Williams, Andrew. Trusted Reviews.
June 5, 2014
http://www.trustedreviews.com/google-nexus5_Mobile-Phone_review_screen-quality_Page-2
touch over its display area. It is sensitive
to the touch of a human finger, hand,
pointed finger nail and passive objects
like stylus. Users can simply move
things on the screen scroll them, make
them bigger and many more.
What is Touch screen
Technology?
Touchscreen technology is the direct
manipulation type gesture based
technology. Direct manipulation is the
ability to manipulate digital world
inside a screen without the use of
command-line-commands. A device
which works on touchscreen technology
is coined as Touchscreen. A touchscreen
is an electronic visual display capable of
‘detecting’ and effectively ‘locating’ a
The first ever touchscreen was developed
by E.A Johnson at the Royal Radar
Establishment, Malvern, UK in the late
1960s. Evidently, the first touchscreen
was a capacitive type; the one widely
used in smart phones nowadays. In
1971, a milestone to touchscreen
technology was developed by Doctor
Sam Hurst, an instructor at the
University of Kentucky Research
Foundation. It was a touch sensor
named ‘Elograph’. Later in 1974, Hurst
in association with his company
Elographics came up with the first real
touchscreen featuring a transparent
surface. In 1977, Elographics developed
and patented a resistive touchscreen
technology, one of the most popular
touchscreen technologies in use today.
Unknown Author. Engineers Garage.
Aug. 2, 2008
http://www.engineersgarage.com/articles/touchscre
en-technology-working
Capacitive touch is the norm today and is pretty much used in every smartphone or tablet
available. This article is therefore focused on capacitive touch technology and the new
variants that are about to change the industry. Before we start we need to know what a
capacitive touch screen is. Basically, a capacitive touch screen is a grid of tiny,
transparent electrodes. Both vertical and horizontal rows of electrodes are positioned and
everywhere they overlap a capacitor is created. The human body is an electrical conductor
and when you touch the screen with your finger, it is measurable because the touch sensor
controller can react to the change in the electrostatic field.
Because capacitive touch technology measures directly on a layer it is not dependent on
measurements from the edges of the screen such as for example infrared. Thus, capacitive
technology supports multi-touch (it can register simultaneous touch points on the
capacitive layer).
On the majority of touch displays produced today the touch layer is sandwiched between
the actual LCD display panel at the bottom and a cover layer on the top – for example
glass (most often Corning’s Gorilla glass). Between the display panel and the touch screen
there is typically an air gap to make sure that the display and touch layer do not affect
each other.
Touch Technology on Smartphones
Which touch technologies are used in today’s smartphones and tablets? What separates a
touch technology in one smartphone from another? And what is “in-cell touch” in the
iPhone 5 and “on-cell touch” in Samsung’s Super AMOLED displays? FlatpanelsHD
guides you through modern touch technology and explains why our devices will become
much thinner in the coming months and years.
Touch technology has been around for many years but in the recent 4-5 years we have
seen a surge in adoption led by smartphones and recently tablets. With the introduction of
the original Apple iPhone we saw companies switch almost entirely to so-called capacitive
touch technology. Before the iPhone manufacturers had primarily been using resistive
touch technology and some touch screens outside of the mobile world even used infrared
touch technology.
What we have learned so far from the short introduction is that capacitive touch
technology requires an extra layer on top of the actual screen. But why not built touch
technology directly into the display panel or into the top glass layer? Well, that is actually
what we intend to talk about in this article as it is happening right now in the industry
with two different types of approaches.
Recently we have started hearing about in-cell (used in the new iPhone 5 where it is called
integrated touch) and on-cell (used in LG’s coming smartphones and Samsung’s Super
AMOLED displays) touch technology. In-cell and on-cell (also called G2) are two different
approaches, with in-cell being the most difficult to produce. Both can help to slim down
displays significantly and improve color saturation.
Larsens, Rasmus. FlatPanelsHD.
September 19, 2012
http://www.flatpanelshd.com/focus.php?subaction=showfull&id=1348049303
TOUCH
Top 3 Touchscreen
Laptops
Technology
1. Samsung NB30
The 10.1-inch screen has a 1,024 x 600pixel resolution, and it's sharp and
bright, and there's no shiny Super-TFT
screen
coating causing
irritating
reflections in bright light. What's more,
this is the cheapest touchscreen PC.
2. Vye V-91015 Touch Screen
Netbook
It compromises on specs a little,
and there's only 1GB of RAM and a
160GB hard drive at your disposal,
but you do get a decent touchscreen
netbook that weighs only 1.3kg.
3. Asus EeePC Netbook T101MT
ASUS PCs are a pedigree of
netbook, with fantastic build
quality backed up with supreme
portability. The Intel Atom N450 is
adequate for most basic web surfing
and the 320 GB hard drive is the
biggest you'll find on any netbook.
Stables, J. TechRadar. Nov 22, 2010
www.techradar.com/10besttouchscreenlaptops
Definition of Touch Screen
A display screen that is sensitive to
the touch of a finger or stylus. Used
in myriadapplications, including
ATM machines, retail point-of-sale
terminals, car navigation and
industrial controls, the touch screen
became
wildly
popular
for
smartphones and tablets after
Apple introduced the iPhone and
iPad. The primary touch screen
advantage is the infinite ways the
user interface can be designed
compared to a set of fixed physical
buttons. Even keyboards are
simulated, and the devices can be
programmed.
Doe, John. PC Mag.
No date stated
http://www.pcmag.com/encyclopedia/term/53
016/touch-screen
Tablets
Tablets are essentially large
portable displays designed for
conveniently viewing content and
images anywhere you want while
untethered. For Tablets the display
is the single most expensive and
important hardware component
because it determines the quality of
application on the Tablet. In this
category an outstanding display is
the
single
best
way
for
manufacturers to make their
Tablets stand out from the
competition – particularly for
Android based devices that have
nearly identical OS.
Soneira R. DisplayMate. March 20, 2012
http://www.displaymate.com/TabletShootOut
The Best Car Gps
Touch Tech: Military
In an attempt to replace the
stereotypical
map-table
with
figurines and one of those little,
miniature push-broom thingies, the
company AAI has developed a
giant touchscreen tablet that could
allow commanders to give orders to
troops on the ground the same way
you pick the angle at which you
want to launch your bomb bird.
The tablet is two feet by three feet
and uses collected surveillance
information to show a map of the
War-zone that is as accurate and
up to date as possible, including
simple stuff like terrain and
structures, but also the location of
friendly and enemy troops. The
enemy troops part won’t always be
perfect, of course; the tablet does
not allow you to disable the fog of
war function.
Limer, Eric. Mary Sue.
October 13, 2011
http://www.themarysue.com/commandertablet/
“If I were dead set on getting a
GPS unit for my car, I would get
the $220 Garmin Nuvi 2597LMT.
It has rock-solid routing, the most
crucial feature of any navigation
gadget. Its roomy, 5-inch screen
makes it unlikely that you’ll mess
up inputting addresses, clumsy
fingers be damned. Plus the
2957LMT self-updates with map
data for as long as it’s in working
use (up to four times each year).”
-Garmin user
The whole purpose of GPS in your
car is to let you know, efficiently
and dependably, how to get from
point A to point B. For that reason,
routing accuracy is still the most
crucial feature to talk about. But
it’s easier to use when it has the
touchscreen technology.
Alba, Davey. The WireCutter
October 30, 2013
http://thewirecutter.com/reviews/best-car-gps
SMART
PHONES
Touchscreen