What is OLED?

[Reggie]

From this article: http://1src.com/?m=show&id=469

OLED display is a self-luminous display that does not require a back-light, offering high contrast ratio, a quick response time and wide viewing angle—all in a package slimmer than current LCD modules. To enhance this display, Sony has employed its unique Super Top Emission technology for outstanding brightness and greater color gamut. These translate into image quality and clarity that could previously viewed only on CRT (cathode ray tube) displays.

The new 3.8-inch (or 9.7 cm) screen measures 2.14 mm thin, and makes it possible for users to enjoy a variety of high-quality content such as TV programs and digital still images without compromising on the viewing experience.

[Pdaman]

My th55 screen is enough good for all that, oled screen is not necessery for usual pda user, so i'm getting that why sony did make that screen ?

[jfer_rs]

OLED are cheaper to be made

[upallnight]

1)better viewing angle
2)almost 3X brighter
3)cheaper to make
4)better color reproduction
5)no backlight needed
6)better battery life

[Cyker]

Yup - Aside from the fading issue, OLED/LEPs are better than LCD in every way, technically and economically!

[darklight]

Yup - Aside from the fading issue, OLED/LEPs are better than LCD in every way, technically and economically!

But if this is the case, I don't get anymore why oh why has Sony priced the new VZ clie way way much more expensive than any existing PDA (in the PalmOS area, at least)...

Its not like the specs are anything to rave about...

:confused:

[cross]

as for the battery life, how OLED stands in energy consumption comparison to other PDA displays? any information on this?

[jfer_rs]

OLED has better battery life because OLED dont need a backlight, are auto-iluminated.

[Cyker]

But if this is the case, I don't get anymore why oh why has Sony priced the new VZ clie way way much more expensive than any existing PDA (in the PalmOS area, at least)...

Its not like the specs are anything to rave about...

:confused:

Well that's easy - It's new!

Think about how much the UX and NZ cost when they first came out!

Also, while they are cheap to make, I bet Sony has had to pump a lof of R&D money in to overcome the fade issues, costs which Sony will no doubt want to recoup ;)

[Reggie]

Come to think of it, if the screens are cheap, after it fades, replace it with a new one. ;)

[Cyker]

Good point ;)

But you forget one thing: It's a Sony! (Cheap? Sony? BWHAHAHA! :D)

[tapf!]

But OLEd only holds c. 2 Years

[Master-Q]

Here is a good website about OLED:

http://www.ol-ed.com

Master-Q

[mertero]

Hi Guys.

Just wanted to update the www.ol-ed.com have been moved to -

http://www.OLED-info.com

Cheers,

Ron M.

[shender]

Organic displays are in their early stages. Ayone in the digital game is sinking a pile of money into this area, include the likes of Kodak. The challenge remains in the mfg process. The ability to sublimate organic materials onto glass in a predictable way, with reasonable yield rates is where the challenge is. If they could work that out, any OLED display would be very cheap. The challenge with anything that is "organic" is it has a half life...The benefits of illumination with low levels current (ie low power consumption) due come at a cost. That cost is simply the half life of the organic matter.

[CliePet]

Samsung develops world's largest organic LED panel

http://www.channelnewsasia.com/stories/afp_asiapacific_business/view/125603/1/.html
http://www.engadget.com/entry/1234000270025865/

[clie_wannabe]

so basically what is being said here that a VZ90 wont have a LIFE of more than TWO years????

[CliePet]

> so basically what is being said here that a VZ90 wont have a LIFE of more than TWO years????
No what is being said here (and in earlier threads) is a lot of speculation, and based on other OLED technologies that may or may not apply to the Sony OLED.

Apparently from what I read the OLED technology does 'wear out' (as do other display technologies like Plasma). I haven't seen any concrete numbers with regards to the Sony VZ90 display as to a usable lifetime.
My random guess/advice - don't keep the display on 24/7 (two years of continuous use would be bad I guess).

[Karim]

The current average is five years of continuous use and should rise as the technology matures.

[Pdaman]

I don't still get that if oled screen don't need backlight, how hell you can see it in dark?

[loki2486]

Well from my limit knownledge of OLED's, the stuff inside each pixel is composed of organic molecules that phosphoresce when a stimulus is apply to them, much like the fish and jellfish that emitts light. They (fish etc..) do it with certain enzymes and chemicals, the OLED's emit light when a electric stimulus is applied to the individual pixels. Therefore you don't need a backlight.

Atl least that how I think it was suppose to work.
:)

[jjesusfreak01]

Well from my limit knownledge of OLED's, the stuff inside each pixel is composed of organic molecules that phosphoresce when a stimulus is apply to them, much like the fish and jellfish that emitts light. They (fish etc..) do it with certain enzymes and chemicals, the OLED's emit light when a electric stimulus is applied to the individual pixels. Therefore you don't need a backlight.

Atl least that how I think it was suppose to work.
:)
This is why when you look at an OLED screen(like on the VZ-90), as opposed to a LCD with a backlight (like the TH-55), the VZ-90 has a black border, but the TH-55 has a white border around the 320x480 portion of the screen. The benefit of it is that an LCD backlight is always on, and the individual pixels have to block the light (this takes alot of power), but on the OLED, the only pixels that are lit are the ones that need to be. This accounts for the main decrease in power consumption for an OLED over an LCD.

[JAmerican]

This is why when you look at an OLED screen(like on the VZ-90), as opposed to a LCD with a backlight (like the TH-55), the VZ-90 has a black border, but the TH-55 has a white border around the 320x480 portion of the screen. The benefit of it is that an LCD backlight is always on, and the individual pixels have to block the light (this takes alot of power), but on the OLED, the only pixels that are lit are the ones that need to be. This accounts for the main decrease in power consumption for an OLED over an LCD.

Why is it that we cannot expand our screens to meet their real resolutions? But, I do see the benefit of an OLED Screen. That's really smart thinking. The image is acutally drawn out if you think of it that way.

JAmerican

[jjesusfreak01]

Why is it that we cannot expand our screens to meet their real resolutions? But, I do see the benefit of an OLED Screen. That's really smart thinking. The image is acutally drawn out if you think of it that way.

JAmerican
Well, as far as I know, the VZ-90 doesnt access any extra pixels, but they are defaultly dark, so it doesnt need to. In otherwords, you cannot differentiate between the edge of the screen, and the edge of the accessed screen area. I would guess that the screen in a TH or UX is hardware limited to appear as a 320x480, and so there is no way to access the extra 2 pixels. Even if we could access the pixels, we would just darken them, which may cause a little bit of a battery hit (its over 3000 pixels).

[jjesusfreak01]

Here is a "HowStuffWorks" article (http://science.howstuffworks.com/oled) on OLED screens. Specifically, the VZ-90 is mentioned (http://science.howstuffworks.com/oled6.htm) as the only PDA with an OLED screen.

[erik1974]

More about OLED-Displays at
http://www.oled-display.net

[MarcyOne]

OLED (organic light emitting diode) displays allow a highly detailed image
to be displayed in a very small amount of space. This is called a
microdisplay. OLEDs can be made using small-molecular weight organic
materials (SM-OLEDs) or polymer-based materials (PLEDs, LEPs). :shortcut:





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[philpalm]

2010 will have some cell phones with OLED screens via Samsung. Looks like Sony has abandoned making OLED Televisions that the had last year (too expensive and still not available in sizes as large as LCDs.

Sorry for not a well written note but maybe we can remove some of the spam at 1src some other method other than adding posts....

[JAmerican]

2010 will have some cell phones with OLED screens via Samsung. Looks like Sony has abandoned making OLED Televisions that the had last year (too expensive and still not available in sizes as large as LCDs.

Sorry for not a well written note but maybe we can remove some of the spam at 1src some other method other than adding posts....

The VZ90 I have still has an amazing OLED screen in dark lighting conditions. It is funny reading this article which is like 7 years old and how people are talking about device lifetimes up to 5 years. Now, a device is not even used past 2 years. The world is backwards.

[aibric]

I have to agree JAmerican. I have an old launch PSP that still plays perfectly. My UX (which, by the way, you saved me with that USB plug and play for the memory stick software) held up until I sold it to buy an iPhone. Big mistake. I hated the iPhone, switched to Android, and dislike Android. The clie's were ahead of their time and still serve purpose, I am looking into getting another UX or a VZ90 but I am worried about the Japanese translation of it.

[Seymour]

Aibric, I'm thinking of selling my VZ-90 if you're interested. It has barely been used since I purchased it new from Japan. I will bundle in a Sony PEGA VR100K plus heaps of memory sticks to complete the package.... If you or nayone else is still out there.....

[mobilereviews]

OLEDs are used in television set screens, computer monitors, small, portable system screens such as mobile phones and PDAs,watches, advertising, information, and indication. OLEDs are also used in large-area light-emitting elements for general illumination. Due to their low thermal conductivity, they typically emit less light per area than inorganic LEDs.



http://mobilereviewsx.com/mobile-reviews/