Power consumption - Page 33

Samsung is aiming to improve their AMOLEDs in the near future. They claim they will double the efficiency (from 20cd/A to 40cd/A), the lifetime (from 50,000 to 100,000 hours) and the power consumption (from 62W to less than 30W). Samsung will use advanced color pattern methods to overcome the current FMM method large-size limitation. They will also move from glass encapsulation to thin-film, and apply Oxide substrate. They will also use only triplet OLED emitters instead of using both singlets and triplets.

Samsung has recently began to construct their new 5.5-Gen AMOLED plant, which will start production in July 2011. Samsung plans to invest $2.2 billion on that plant that will have 3 production lines (1300X1500mm). Having a larger wafer size results in better efficiencies for both small and large panels (such as 30" or 40" OLED TV panels). Samsung did not say whether the new methods will apply in the new plant only, or also in the current one.

Universal Display announced that they have been awarded another Small Business Innovation Research (SBIR) Phase I $99,900 program from the U.S. Department of Energy (DOE). Under
this program (titled Novel Optical
Enhancement for Thin
Phosphorescent OLED Lighting Panels) Universal Display intends to demonstrate a white
phosphorescent OLED lighting panel that meets Energy Star criteria
using
an optical enhancement technique which improves outcoupling
efficiency
while preserving the thin, elegant form factor of the white OLED
lighting panel.

Universal Display will
employ a
novel outcoupling technique that performs as well as thicker
treatments,
such as macro-extractors or outcoupling blocks, but is
significantly
thinner. Outcoupling enhancements are commonly used to increase
the
amount of light that is emitted as useful light. In addition to
maintaining its thin and light weight form factor, the resulting
white
PHOLED lighting panel, which UDC intends to deliver to the DOE,
may
improve the company’s previously reported lighting panel efficacy
results by over 25% and demonstrate a desirable path to meet the
Energy
Star Category B criteria for solid state lighting.

Universal Display has more news for us at SID 2010. They have already announced the new light-blue light-blue phosphorescent OLED emitter system, suitable for both display and lighting applications. Today they are presenting an all-phosphorescent white OLED to address initial commercial niche white lighting applications

UDC is showing a 15cm x 15cm OLED lighting panel using the company’s highly-efficient phosphorescent OLED technology and materials. UDC believes that this panel is the most energy-efficient performance, at this scale, reported to date. This panel emits a warm-white light with a color rendering index (CRI) of 87 and a correlated color temperature (CCT) of 3055K. It also has a luminous efficacy of 50 lumens per Watt using an optical outcoupling treatment with a modest 1.5x enhancement factor. With an operating lifetime of approximately 10,000 hours to 70% of an initial luminance of 1,000 cd/m², this panel performance has the potential to meet the requirements for a number of initial commercial niche OLED lighting applications, and is an important step toward white OLED panel performance that achieves Energy Star
targets.

A couple of days ago, Universal Display has announced a new light-blue phosphorescent OLED emitter system, suitable for both display and lighting applications. Today they are presenting the all-phosphorescent AMOLED architecture that uses the light-blue OLED as a fourth light-blue sub-pixel.

The introduction of a light blue sub-pixel can significantly extend the operational lifetime of an OLED display and reduce the display's power consumption by as much as 33%, as compared to an RGB OLED display using a fluorescent blue sub-pixel.

Universal Display has announced a new light-blue phosphorescent OLED emitter system, suitable for both display and lighting applications. Today they are giving us more information about the new material.

Universal Display’s new light-blue emitter system offers CIE coordinates of (0.17, 0.37) and a peak wavelength of 472 nm. It also provides a luminous efficiency of > 45 candelas per Ampere, corresponding to > 20% external quantum efficiency at 1,000 candelas per square meter (cd/m²). Under accelerated test conditions, this new emitter system demonstrates an operating lifetime of approximately 9,000 hours, to 50% of an initial luminance of 1,000 cd/m². These performance gains are significant, representing a 30% increase in luminous efficiency and an almost 100% increase in operating lifetime, as compared to Universal Display’s earlier-generation light-blue PHOLED emitter system.

Novaled is showing a new white top-emitting OLED, that has over 50,000h lifetime and 30lm/W power efficiency (at an initial luminance of 1,000 cd/m2). The OLED is produced on a metal substrate. Novaled has developed a high performance white top emitting OLED using the Novaled PIN OLED® technology with its proprietary doping and host materials in association with a blue fluorescent emitting material from SFC Korea.

The device has an ITO-free top contact and corporates a Novaled-specific light extraction material layer to enhance the efficiency. At the same time this outcoupling material reduces the color shift over a wide viewing angle so that it can hardly be detected by the naked eye.

More SID news: 3M will present OLED light extraction technology, providing significant efficiency improvements for OLED light sources and allowing for as much as a 100% increase in axial luminance.

3M will also show their Flexible Transparent Barrier (FTB) film, which provides water vapor resistance to protect OLED (or e-paper) displays, will also be showcased.

PolyPhotonix says they'll launch a general lighting 8" OLED tile in early 2011 with a 60-lumen per watt efficiency. We still have to see whether they'll manage to do this, but if they do than these panels will be larger than anything available today, and also more efficient (OSRAM's ORBEOS are currently 25lm/W and Philips Lumiblade are 'above 20lm/W' - although we can assume that by 2011 they'll have better efficiency for their panels also).

PolyPhotonix is working toward polymer-based OLED Lighting panels.

Update: The Light Photon is made by Blackbody, using a single 47cmx37cm OLED device. See below for more infromation.

The Light Photon is a new OLED lamp, designed by Philippe Starck. It is made by Blackbody for Flos, and hand-made pre-production prototypes are now available for $5900. The lamp’s light source is a 47cm x 37cm single evaporation OLED device, with an active area of 1001cm², a color temperature of 2800K and a CRI above 80.

Light Photon OLED lamp

The small cross on the metal base allows the light to be turned on and off (by placing the finger completely over the cross) or dimmed (by holding the finger slightly above the cross for several seconds).

Universal Display reported their financial results. For the first quater of 2010, the net loss was $2.9 million, revenues were $4.2 million. The company reprots an increase in revenue (both in commercial OLED sales and development activities) and a decrease in operating costs.

LG Chem white OLED panels

UDC says they are devoting more and more resources into OLED Lighting. We know that they are working with Konika Minolta, and now UDC say that several more companies are using their materials in OLED Lighting prototypes: LG Chem, NEC Lighting, Panasonic (using UDC's red and green materials) and Showa Denko.

NEC Lighting OLED lamp prototype

UDC is currently shipping Red PHOLED materials for customers (mostly Samsung). They are also hoping that these customers will start using their Green materials, which will enable better efficiency on these displays.