First OLED Screens To Be Available this Fall
Earlier this week, Philips Electronics announced that it is the first company to be able to produce sufficient numbers of OLED displays for them to be included in a shipping device. The company said only that its monochrome, passive-matrix OLED screens would be on products this fall from a leading electronics manufacturer, but declined to say which one.
Organic Light Emitting Diode (OLED) is a generic term for a whole group of possible screen types. Philips calls theirs PolyLED because it uses groups of molecules, rather than the more commonly used individual molecules.
OLEDs are made up of thin films of organic materials that give off light of various colors when voltage is applied to them.
Like LCDs, OLEDs have both active matrix and passive matrix forms. Philips current version of PolyLED is passive matrix, in which each pixel is an OLED and to make a particular pixel glow, current is applied to its row and column. In an active matrix OLED, each pixel is made of on OLED and a thin-film transistor. The TFT acts as a switch that controls how much power goes to the OLED.
The main advantages of OLED screens over current ones is the screen itself glows so there is no need for a back- or side-light. This means they require less power and take up less space, two important factors in a handheld. They also cost less to make.
OLEDs have a faster response time so they are better able to show video. They can be seen from wider viewing angles. They are less susceptible to heat and cold. OLEDs have fewer manufacturing steps and use both fewer and cheaper materials than LCDs do.
Numerous companies are working on developing OLED screens, like Sony, Pioneer; and TDK. Research scientists at Kodak invented the OLED in the early 80s and the company continues working with them today. Samsung SDI has said that it expects to begin selling handheld-sized OLED screens by late 2003.
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RE: But when will we get colour ones?
RE: But when will we get colour ones?
WOW --- OLD
Reflective screens and transreflective screens are used in all new units including new Palms. The reflective shines light on a reflective surface under a special layer that distributes the light so it looks like the whole thing lights up. Since its reflective it looks BETTER in direct sunlight.
Now since you are obviously posting on an outdated unit and obviously have no knowledge of new stuff. YOU are living in the '70s. Ironic isnt it? Concidering your post.
RE: But when will we get colour ones?
RE: But when will we get colour ones?
RE: But when will we get colour ones?
RE: But when will we get colour ones?
If the new screens use lower power than current screens, then they will increase the battery life of handhelds. Some people may choose to buy a B/W OLED handheld because of the better batery life, others may enjoy recharging more often so they can have color.
RE: But when will we get colour ones?
I think it is just easier for people to cut each other down, then to try and have an respectable conversation. I wonder if you people talk this way to those around you, or do you just do this on the net.
RE: But when will we get colour ones?
RE: But when will we get colour ones?
What on earth are you talking about? Are you sarcastic or asinine?
RE: But when will we get colour ones?
"What on earth are you talking about? Are you sarcastic or asinine?"
Unbelievable. Simply unbelievable.
No wonder most people post anonymously here. The first reaction to a comment that doesn't agree with you is to name-call and then talk condescendingly. That's one problem with the net--it's so easy for people to throw away what used to be considered good manners, consideration and respect. It is so easy to insult a faceless post.
RE: But when will we get colour ones?
RE: But when will we get colour ones?
"What on earth are you talking about? Are you sarcastic or asinine?"
This just points out one of the main problems with PIC. Most posters seem to be 15-16 year old boys with 0 business sense and, as shown here, 0 respect for anyone else's opinions. But there is hope, they too will grow up some day.
RE: But when will we get colour ones?
Monochrome is just fine. For me, colour is not important or even desirable, and I don't wish to pay for gimmicks I don't use.
I can't wait to see the quality of these OLED screens. If they are as good as people say, this should be a real breakthrough in the technology of handhelds.
This, plus a physically bigger, on a m500 sized pda would be awesome.
RE: But when will we get colour ones?
RE: But when will we get colour ones?
Reflective TFTs are great in sunlight when compared to older TFT technologies. However Color OLED will have even better contrast than the current crop of Reflective TFT plus they dont need a lighting layer when used in darker environments. The mose emphasized improvments for PDA are however its lower power consumption and smaller form factor. Imagine PDAs with longer battery life and even thinner form factors :)
Battery power alone is enough to make many people wait for X-Scale PPCs.
The interesting question would be the different between active and passive OLEDs apart for response times. Would it affect the clarity?
Monochrome OLED are still interesting to many. For instance you dont need colour to read many ebooks :)
RE: But when will we get colour ones?
JBH
RE: But when will we get colour ones?
This is the PIC forum! There'll be no "adult conversations" here!! :) (I'd use the *wink* emoticon, but they never display right in this message board. :( Weird.)
Jim
Treo 270 screen
RE: Treo 270 screen
Obviously OLED is not on the list for Handspring for the time being. I just wonder what else they might have in their pocket for the colour display.
Francis Lo, HKG
RE: Treo 270 screen
My musing about Treo, i doubt it even has high tech low temp poly silicon transreflective. The screen production is still limited and company like sharp/Sony tend to use it in their own product first before giving it to competition.
Promising, but...
RE: Promising, but...
Pioneer's car hifi products?
RE: Pioneer's car hifi products?
but in term of color quality, specially when voltage supply is no problem like car, TFT still have the best contrast and color depth.
RE: Pioneer's car hifi products?
"CES, Las Vegas, Nevada. January 06, 2001
Pioneer Electronics, the company that invented the detachable face technology for car stereos, again revolutionizes the industry with the first face plate that can display a personalized screen saver. As a result of Pioneer's Advanced Organic electroluminescence (OEL) technology, each user can create a unique screen saver by downloading a still image to the headunit display. . . ."
Just run a search for "organic" on the Pioneer Electronics page. Also, I've seen the OLED displays advertised in car audio systems in local Best Buy ads. I don't recall the manufacturer, but it was probably Pioneer.
JBH
RE: Pioneer's car hifi products?
RE: Pioneer's car hifi products?
-aardvarko
webmaster at aardvarko dot com
http://aardvarko.com
RE: Pioneer's car hifi products?
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But when will we get colour ones?