Tag: OLED

Articles

Samsung to produce 7" high-res AMOLED display | SammyHub.com

Un écran tactile AMOLED 7″ à « forte » résolution chez Samsung | Le Journal du Geek

My comments

Samsung have been involved in developing the active-matrix OLED display over a long time and have refined it in to a single-layer AMOLED touchscreen display that is pitched at smartphones.

As you all will know, the difference between the OLED display and the LCD display is that the way the display is lit up. An OLED display uses power to actually light up the pixels rather than dynamically passing light through a filter that makes up the image, a practice that is done with LCDs.

There are some key benefits that these displays have such as high contrast, improved colour, a wide viewing angle as well as energy saving due to only needing to light up what is needed on the display. Infact I have described the OLED display as a “vacuum fluorescent display” for battery-operated devices because the displays have that same bright and crisp display characteristic as the vacuum-fluorescent displays used on a large range of good-quality consumer electronics like DVD players and home-theatre receivers.

For that matter, I currently own the Samsung Galaxy S Android smartphone which has this display technology and have been pleased with the way it handles regular display activity including pictures and videos. This is even after I have owned the Nokia N85 Symbian S60 smartphone which uses the same AMOLED display technology in a non-touchscreen application.

Now they have taken this technology further by developing the Super AMOLED Plus which is the same AMOLED display with integrated capacitive touchscreen as used in these Galaxy S series smartphones, but as a 7” 1024×768 variety.

At the moment, the obvious application for this display would be the 7” tablet but I would see it appeal to more applications such as dashboard touchscreens for the car or boat. This may also include the double-DIN multifunction head units that will appeal to the young males who want to equip their cars with street-worthy sound systems.

If Samsung wanted to have sufficient manufacture quantities for these displays as they do for the small OLED displays used in the smartphones, they would have to build one of their Galaxy Tab 7” tablets with these displays. This also includes encouraging other manufacturers to implement them in a 7” tablet model.

Who knows when it would be that Samsung would take the integrated touchscreen AMOLED display technology up to the 10” size for the larger tablets and netbooks.

 Samsung Super AMOLED explained in pretty moving pictures (video) – Engadget

Samsung’s explanatory video clip

My comments on this technology

Same desirable attributes as the OLED displays, but improved in significant ways. Ability for the display to have integrated touch-sensitivity, This leads to slimmer touchscreen handsets which is an increasingly-important application in the now-competitive smartphone market, as well as similar applications like remote-control handsets and personal media players.

They have improved the outdoor viewing ability and display responsiveness for this display, which would be of benefit to mobile phones as well as digital-imaging and handheld-games-console applications. But do I see this technology going further? Another application that I could see the Super AMOLED work well with is a watch which works as an auxiliary display and control unit for mobile phones, like some of the Sony Bluetooth watches that have been surfacing lately. Such watches could then permit a colour display on the wrist with various interesting applications.

An area where this Super AMOLED technology could excel would be automotive and marine applications, especially if the cost of larger-area displays comes to a par with the common LCD displays. For example, the new multi-function displays that are becoming the control point for HVAC, infotainment, navigation, and similar applications in newer cars could move towards this display technology. Similarly, this technology could appeal to personal navigation devices a.k.a. “sat-navs” or GPS units, marine GPS / fish-finder units as well as aftermarket car-audio equipment.

What I see is that the Super AMOLED could be one of the next key display technologies as was the LCD or the LED displays.

This radio that I am reviewing is the top-end network-enabled model of Pure’s popular Evoke series of DAB digital portable radios. All of the models have different functionality but a very similar style, with an oval-shaped accent encompassing the speaker and control area. The lower-end units have a wood cabinet and a plastic front panel which is varied according to the model.

Description

This particular unit has a gloss-black finish with a large yellow OEL bit-map display and knobs for the volume and tuning controls. Other functions are operated using touch buttons that are lit up in yellow where applicable. This is intended to make the set look more classy, especially with the “piano-black” finish.

The OEL or “organic electroluminescent” display is based upon the displayed letters and segments needing the power to light up rather than the LCD display being dependent on a backlight to be easily visible. This is similar to what is used on my Nokia N85 phone reviewed in the blog and is very appropriate as a display method for devices that work on low power. I even refer to the OEL display as the “vacuum fluorescent display” for battery-operated devices because of the fact that the display yields the same brightness and contrast as the typical self-illuminating vacuum fluorescent display often used as a user-information display on VCRs, DVD players, home theatre receivers and similar equipment but doesn’t chew through the batteries to achieve that aim.

The Evoke Flow, like the rest of the Pure Evoke range of radios, is capable of operating as a two-piece stereo set when you purchase and use the optional matching external speaker. Similarly, this radio, like the rest of the Evoke range, can be used as a battery-powered portable radio when you buy a Pure rechargeable battery pack from the same retailer that you bought the set. These accessories haven’t come with my review sample, so I won’t be able to assess how it works with these accessories.

Features

As well as its Internet-radio and network media player functionality, this set is also capable of receiving DAB+ digital radio and FM radio with RDS RadioText.

For connectivity, it also has a 3.5mm auxiliary input jack for playing music from an iPod or portable CD player and a 3.5mm line-out jack for use with external amplifiers or recording devices. There is also a 3.5mm headphone socket as well as the socket for the accessory stereo speaker. All these connections are located on the back of the set, in a similar manner to the Kogan and Revo Internet radios reviewed in this blog. I have always preferred these sets to have the headphone jack located on the front panel of the set, or at least on the side, to permit “walk-up” headphone use where you didn’t have to move the set to plug in a pair of headphones which are used on an ad-hoc basis. This is a practice I have often seen with most portable audio equipment I have seen and used through the 1970s and 1980s.

Pure do supply an iPod dock as an optional accessory for this radio but it doesn’t have a power input connector so the iPod can be run on external power while playing through the radio. Instead, I would use the Apple Universal Dock or an iPod dock with a USB, Apple Dock or DC socket so that I can connect an external power supply to the iPod or iPhone that is in the dock.

The set can connect to the home network and the Internet via a 802.11g WiFi network segment but this network can be secured to WEP, WPA-PSK or WPA2-Personal standards. This is the same for other Internet radios, which also means it can’t log in to a “corporate-standard” WPA(2)-Enterprise network or a wireless hotspot that uses Web-based authentication.

An improvement I would like to see on the setup when it comes to enrolling the set with a WiFi network would be to allow it to keep configuration details for multiple networks. This is more so because this radio is an easily-portable design and capable of working on batteries. thus could be taken between locations at a moment’s notice.

It can also stream audio from DLNA-compliant media servers like TwonkyMedia Manager or Windows Media Player (Windows Media Connect) or most NAS units.

The unit has the built-in Internet radio directory but benefits more if you associate it to the Pure Lounge portal. Here you benefit from facilities like persistent Internet radio presets and extra content. The Lounge service also provides background sound-effect loops like waves for situations where a sound-effect loop is needed. Such applications may include having the sound of waves to help you drift off to sleep or the sound of thunderstorms to help in getting a dog used to thunderclaps. This also includes a reference tone set representing the strings of a guitar for use when tuning your guitar.

Use

When you use the Internet radio, you can browse a worldwide directory of all the stations registered with Pure’s Internet-radio directory or use a “form-based” search to narrow down the list. Here, when you touch the “Search” option, you see a form and select the attribute to filter the list by. This can be by “Genre”, “Country”, “Availability”, and “Bit Rate”. Then you press the Tuning knob to set the attribute’s value. After that, you touch the “Go” option to see your reduced selection. This is different to the Kogan and Revo radios where you went through a menu tree to select the Internet-radio station that you want.

Unlike the Kogan and Revo radios, there isn’t a row of preset buttons for allocating favourite stations. Instead, you select the “Favourite stations” which is marked with a heart symbol to go to your preset list and browse through the preset list and press the Tuning knob to play that station. When you listen to a station that you want to add to the list, you touch the “Add to Favourites” option to set it in your preset list.

The set can work as a DLNA music player but you can only play the content by using the set’s controls rather than over the network using software like TwonkyMedia Manager.

FM tuning is based on a “seek by default” method so that when you turn the knob, the radio finds the next strongest signal. The DAB function is based on selecting from a list of stations sorted by alphabetic order. There is a “trim station list” option for clearing up dead station entries, which is handy if you move the set between cities or the DAB multiplexes are being reorganised.

Sound and Useability

The set sounds more “soft and rich” compared to most small portable radios, including the Kogan and the Revo, but has a similar sound output level. Like the other Internet radios I have reviewed, there isn’t a tone control, whether as an easily accessible control or within the menus.

The OLED display is much more legible than the typical LCD display found on most Internet radios and is a bit too bright for night-time use. There is the option to dim the display or to have the display dark whenever the set is turned off. The clock display is large enough for easy reading across a room. Even if you dim the display, it is still legible, which can be a bonus if you have the set in your bedroom as a clock radio or have it in a hall or other room and still like the clock display to work as a “nightlight”.

Fit and finish

The set’s fit and finish represent a high-quality product that is enjoyable to use. The knobs even have a feel associated with you operating a piece of quality equipment. The main limitation with the black gloss finish is that it could harbour fingermarks too easily and you may have to wipe those off frequently.

The telescopic aerial that you need to use for FM or DAB reception is much different from what I have seen in use on most portable radios that I have used. Here, this set, like a National Panasonic RX-C52 “ghetto blaster” that I have had once,  has a dedicated screw for anchoring the aerial. This will definitely make it easier the user to buy and fit a replacement aerial if this aerial is damaged, as is common with a lot of portable radios that I have seen and used. Good marks to Pure for realising what often happens with many portable radios and making the aerial easy to replace on their Evoke radios.

Points of improvement

The Pure Evoke Flow isn’t a perfect portable digital / Internet radio and needs a few points of improvement for its product class. One would be for Pure to release a cheaper “junior model” in the “Evoke Flow” line that has a finish similar to the rest of the Evoke series and uses a two-line alphanumeric display rather than a bitmap display.

As far as connectivity is concerned, I would at least like to see the headphone socket located up front or on the side to allow “walk-up” headphone use. For battery use, there could be the possibility of the set working on any of the “regular battery sizes” i.e. AA, C or D through the use of an add-on battery module that takes these batteries, so that one can use these commonly-available “Duracell” or “Energizer” batteries with the radio.

The wireless-network connectivity could be improved through support for WPS “quick-setup” and / or the ability to work with multiple networks to suit its nature as a portable radio. The set could provide information that is necessary for enrolment to the “Lounge” portal on the display through a set-up option.

Conclusion

The set’s “piano-black” look will appeal to people who like a “classy look” for their Internet radio solution. This would typically encompass a lot of office users, especially professionals. It may also look the part with a home office or on a shelf in that classy kitchen. But it can definitely work very well as a “floater” portable Internet radio that can be taken around the house as required because of the light size and integrated handle. The fact that the handle doubles as a snooze bar may make the set appeal as a clock radio, although you have to descend through menus to set or enable the alarm clock, sleep timer or countdown timer.

The set’s display would be suitable for people with limited eyesight and the fact that you use knobs to adjust the volume and select stations may make the set appeal to mature and older users who are more comfortable with using knobs to select stations or adjust the sound.

The main limitation with this set is that it is significently expensive, usually around AUD$400-600 depending on the retailer.

Introduction

I am reviewing the Nokia N85 3G Multimedia Phone, which is part of Nokia’s high-end “N-series” multimedia phones. It has been positioned as a second-tier model in their lineup and is one that can be easily missed in the crowded multipurpose mobile phone market, especially where this market is dominated by the Apple iPhone for personal use and the Blackberry phones for business use.

Software availability

This phone is part of the Symbian S60 Version 3 platform which has a wide availability of software from different places. This means that additional functions can be added “off the Web” by visiting Handango, software providers’ Web sites and S60-themed Web sites as well as the Ovi application store. This puts it as a decent alternative to the Apple iTunes App Store model that is being implemented by the “King Of Cool” with the iPhone.

As a multimedia phone terminal

The N85's high-contrast OLED display

The display is based on OLED technology rather than the usual LCD technology which makes it easier to read in all light. The display is very bright and can be seen at extreme angles. Infact, I consider this display the “vacuum-fluorescent display for battery-operated devices” because it has the same brightness and consistency as the vacuum-fluorescent displays used on most home-installed consumer-electronics devices, especially Panasonic or Sony equipment. A disadvantage that this display may have is that this may lead to some pictures, especially some photographs, appearing too saturated and with a bit too much contrast but it may be how the OLED display reproduces the pictures. It may be a boon with text or diagrams such as the Ovi Maps.

The phone’s battery life is very good even when used as a music player as well as a phone. If you use 3G or WiFi data connectivity or the integrated navigation functionality for a significant amount of time, you can compromise the battery life. You can get around this problem while getting the most out of the phone while you are out and about but cannot readily use the supplied charger by investing in an external battery pack such as one of those “AA-battery”-powered mobile phone chargers. The phone’s MicroUSB socket is its power socket, which means that USB=based power devices used along with a micro-USB flylead can become the phone’s external power supply. The only problem with this is that some USB hubs may not be logically seen by the phone as a charger.

The phone as a GPS unit

The phone has integrated GPS but I am using this function with Ovi-based Maps 3.0 with City Guide subscription. For people who do a lot of walking, the subscription is very good value. One thing that I would like to see in the maps data is public paths for use by low-speed traffic like pedestrians, cyclists or horseback riders; but this is an issue with Navteq and the data they provide to Nokia. The GPS function can be used by other S60 3rd Edition location-driven applications like Nokia’s Sport Tracker GPS pedometer / workout diary or Google’s S60 siftware.

The phone as a Walkman

This phone beats the iPhone when it comes to personal-stereo functionality. This is demonstrable in the FM radio and the integrated music player, especially in how you can add music to the phone.

The phone has an integrated RDS FM radio which works only with wired headsets because the headset’s wire also is the radio’s aerial. There are a few discrepancies when it comes to working with RDS-enabled FM stations. If you preset an RDS radio station, the callsign details that are supplied through RDS aren’t used as a default station reference name. Instead, you have to manually copy the station’s name in to the station’s preset details. The phone doesn’t work with the so-called “dynamic RDS” features like TA/TP/EON traffic-information priority – a feature which can be a boon to public-transport users; PTY program-type functionality (including news priority) or RadioText dynamic text display. It does work with Visual Radio, which is an interactive radio service with 3G or WiFi as data backhaul.

The built-in music player is definitely flexible when it comes to handling music content because it works from music held on the microSDHC cards up to 16Gb / card in capacity. These can be exchanged at will in a similar manner to the classic cassette or MiniDisc formats. Similarly, you can enlarge the storage capacity by upgrading the memory card to a higher capacity. It is compatible with the SlotMusic “musicassette” idea that Sandisk put forward; and the MicroSDHC cards can be loaded with music through a “drag-drop” method via the file system and Nokia PC Suite or directly on to the microSDHC card in an SDHC card reader with the use of an SD card adaptor; or the phone can be synced through Nokia PC Suite or Windows Media Player.

As well, you can download content from a DLNA music server that you are connected to via the WiFi network. This yields a lot more flexibility than the Apple iPod / iPhone system when it comes to adding newer music to your portable collection  As far as codecs are concerned, the phone works with MP3, WMA and AAC codecs and can work with WMA up to 192kbps and MP3 up to 320kbps. The music player is operated in a manner similar to most MP3 players and if you make or take a call, the music pauses and resumes from where it left off. There is even the nice touch of the music fading up gracefully when you finish the call.

The integrated camera

The integrated camera is capable of high-resolution pictures and works well as an auxiliary camera if your main digital camera is out of action. It also works very well for video photography and will use the available memory on the microSD card for the footage rather a particular time limit.

One main problem with it is that if you intend to take pictures to send as MMS messages, it will prefer to send the high-resolution pictures which may not work with most mobile phones. To send an MMS, you would have to set the camera to work at a lower resolution before you take the picture. The picture you save would be a low-resolution picture. A point of improvement that could exist would be to have downscaling for MMS images when an image is sent as an MMS message.This is where a downscaled copy of the image is sent out as an MMS image.

Other than that, pictures and video that you take with the built-in camera can be transferred or printed out using PTP, Picthridge or Bluetooth or a PC can import pictures using Nokia PC Suite and any of the picture import functions that are part of Windows.

There is also a low-resolution camera on the front of the phone which comes in handy if you make a 3G videocall, but you can select to use the main camera during the videocall if you intend to show the other caller something rather than yourself.

Connectivity

As far as regular mobile-phone connectivity goes, this phone offers whatever is expected from a high-end mobile phone or smartphone.

The phone has a MicroUSB data and power socket and a 3.5” 4-conductor jack for headphones / AV lineout and headset / audio adaptor use. I use the phone with a Nokia-supplied headset audio adaptor with built-in microphone that is connected to a set of premium headphones so as to gain good-quality sound. The phone can connect to cassette adaptors for use with car cassette players or classic ghetto blasters; either directly or through an audio adaptor.

The main problem I have had with the audio adaptors is their flimsy tie-clips anchored to these adaptors that break under typical use. If this happens to you, I would suggest using either a metal “bobby-pin” or tie-clip; or a regular plastic clothes-peg from the laundry, attached to the audio adaptor with a rubber band. The only problem is that it may look a bit ugly especially in conjunction with formal wear or good headphones; and, for women, may be uncomfortable against the cleavage. To do this, wrap the rubber band around the audio adaptor making sure it isn’t pressing any of the buttons. Then open the clothes-peg, tie-clip or “bobby-pin” and pass one of the jaws of the clip through the rubber band. You then are able to clip the audio adaptor to your collar, lapel or tie with the tie clip, clothes peg or “bobby pin”.

The phone has a built-in PLL-controlled FM transmitter which you can use alongside an FM radio for music playback. If it was able to use this FM-based link for handsfree calling, I wouldn’t use that functionality at all because of having to set up the radio to handle the call every time a call comes in – one step too many.

The Bluetooth functionality is equally comprehensive in that is supports the Headset and Handsfree profiles for handsfree calling; A2DP / AVRCP audio playback profiles for music streaming functionality; and SIM Card Profile and Phone Book Profile for the increasing number of advanced in-car handsfree devices available with newer premium vehicles or on the aftermarket. This certainly means that the phone can partner with all of the good Bluetooth headsets and helmets as well as all of the good in-car handsfree setups.

Existence in the small network

WiFi Networks

The phone’s main method of connection to a small home or business network is through the built-in WiFi transceiver.

This transceiver works with 802.11g WPA networks that work purely to the WPA or WPA2 modes as well as to insecure WEP networks. This avoids routers or access points that are set up for WEP/WPA compatibility modes. For business and other high-security networks, the phone can work with most EAP-based enterprise security network setups; including SIM-based security. The phone can be programmed to work with wireless networks that have their SSID hidden, with use of a “hidden” option when you create an access point. The WiFi radio is very sensitive, which can come in handy whenever you use wireless hotspots.

The main gap the the phone has concerning WiFi-network connectivity is the lack of ability to support the WPS easy-enrolment setup that is becoming the norm for currently-issued wireless routers.

UPnP / DLNA Functionality

The phone works “out of the box” as a media player to the phone’s display and speakers or as a UPnP AV Control Point for pushing content held locally or on anther DLNA media server to another UPnP AV / DLNA Media Renderer device. It can also share content held on its memory card to a DLNA Media Network. Playlist management – can it push the contents of a container to a device?

Mail terminal

The built-in Symbian mail client supports IMAP4 and POP3/SMTP e-mail systems and uses a similar auto-setup routine to Windows Live Mail, where you just supply your fully-qualified e-mail address and password and the phone just works it out. The client is a similar standard to what is integrated in most smartphones but due to 12-key data entry, may be best used for reading e-mail and sending short replies or notes.

Web browsing

The web-browsing experience is similar to most other smartphones and is limited by the small screen. It can be viewed horizontally by selecting a mode to “view horizontal”. Password entry for social-networking and similar pages can be difficult due to the 12-key text-entry method primarily used in this class of phone.

Internet Radio

There is an integrated Internet Radio receiver function that can work with WiFi networks or 3G networks. If you want to use this function with a 3G network, it will need to work on an “all-you-can-eat” data plan if you want to do a lot of Internet-radio listening. The station directory is similar to that offered by Reciva or vTuner; which means having the stations sorted by country or genre. The phone can also “pipe” the Internet radio sound through the Bluetooth A2DP audio stream which allows you to play Internet radio broadcasts through Bluetooth speakers and similar audio accessories.

Conclusion, including the phone’s “cool factor”

This phone will appeal to the mature users who want a fully-functional yet flexible multimedia mobile phone but don’t intend to do a lot of text entry on it. As well, the phone “sets the cat amongst the pigeons” with the OLED display which is different from the LCD-display norm, thus can appeal to those who don’t have good eyesight.

What Nokia needs to do is to offer phones equipped with this OLED display and Symbian S60 to cut in to established smartphone markets like the QWERTY-keypad business phone (whether Blackberry-style or lengthways) or the touchscreen phone.

I have bought this phone on a published 24-month Telstra 3G “cap” contract under the regular terms and conditions for all customers who sign up to the contract. Therefore I am not writing this out of fear or favour.