OLED News and Information Aggregator Blog
Posts tagged technical-research
More details about MicroOLED’s 5.4mp 0.61" OLED microdisplay
Jan 31st
A couple of days ago MicroOLED announced their next-generation 0.61″ OLED microdisplay which features 5.4 million pixels . Today we have some more information and the product’s data sheet . The most interesting info is that samples of the new products are already available – with volume production expected in 10 weeks. It turns out that MicroOLED will offer two version. The MDP02APFC offers full-color (using 4 sub white OLED subpixels and RGBW filters) and 1,300×1,044 resolution (just a little over SXGA which is 1,280×960). The sub-pixel pitch is 4.7×4.7 micrometre, the maximum brightness is 250Cd/m2 (typical brightness: 120 Cd/m2), the maximum contrast is 100,000:1 (typical contrast: 10,000:1) and the power consumption is 200 mW (minimum) in video mode. read more
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More details about MicroOLED’s 5.4mp 0.61" OLED microdisplay
Tanaka Kikinzoku Kogyo now offering a printable conductive silver ink
Jan 24th
Tanaka Kikinzoku Kogyo announced that their conductive silver ink is now available commercially, and they say they are the first company to offer such a prOduct. The silver ink is hardened using UV light – there’s no need for thermal hardening, and can be used in a broad range of products – including OLED panels. The ink needs to be exposed to UV light for around 0.3 seconds, and it then hardens instantaneously even at room temperature to form a current-carrying circuit. For a 5 µm film thickness, wiring was formed with an electric resistivity of 10 -3 ?cm. The ink can be used on both a glass base and a flexible base (PVC or PET films). read more
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Tanaka Kikinzoku Kogyo now offering a printable conductive silver ink
New microfabrication technology can enhance OLED light extraction efficiency
Jan 13th
Japan’s Oji Paper developed a new microfabrication technology that can be used to enhance the light extraction efficiency of OLEDs. The idea is to use microparticle coating to form a regular pattern that is several-nanometer-wide on the surface of the metal part of the negative electrode in an OLED panel. The nanostructure turns the plasmon energy (that is sometimes released from an OLED) into light. Oji paper says that this technology was used to improve a red OLED’s light extraction efficiency by about 100%. They are now working to apply this to a white OLED. read more
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New microfabrication technology can enhance OLED light extraction efficiency
LG Display announces their 55" OLED TV prototype, to be unveiled at CES
Dec 26th
LG Display announced that they will unveil a new 55″ OLED TV panel at CES 2012 , and offered some more details and a couple of photos. Last month LG said that their OLED TVs will be available in the middle of 2012 . The panel is only 5mm thick, and is also lighter than LCD panels. It features a 100,000:1 contrast ratio, fast refresh rates and a wide color gamut (wider than LCD, according to LG). They also say that the TV is more power efficient than an LCD TV, but they wouldn’t give any details yet. LG Display’s panel uses an Oxide-TFT backplane (this was announced before ). According to LG this backplane offers an identical image to LTPS panels, while being significantly cheaper. The TV uses a white-OLED with color filter design (this was the technology LGD acquired from Kodak back in 2009 ). read more
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LG Display announces their 55" OLED TV prototype, to be unveiled at CES
Samsung uses Atmel’s touch controllers in key Super-AMOLED devices
Dec 21st
Atmel announced that Samsung is using their maXTouch E Series single-chip touch controller in the Focus Flash , Focus S , Galaxy Tab 7.7 , the Galaxy S and the Galaxy Note . Atmel’s maXTouch E touch controllers offer a single-chip solution that has an updated capacitive touch engine (CTE) that features new noise avoidance and noise suppression capabilities. According to Atmel, the new controllers has an improved performance in every aspect compared to their older generation controllers – higher fidelity touch sensing, faster responsiveness, lower power consumption and thinner form factors.
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Samsung uses Atmel’s touch controllers in key Super-AMOLED devices
Kodak and Heraeus co-developed a cost-effective ITO alternative
Nov 29th
Kodak and Heraeus have developed a new easily-patterend transparent conductive film that can be used as a cost-effective alternative to ITO in touch displays. The two companies unveiled a 14″ touch LCD prototype that was was fabricated using Kodak HCF-225 Film/ESTAR base and the Clevios PEDOT:PSS coating with a surface resistivity of 225 ohms/sq. It was fabricated using conventional printing processes, including UV-cured and heat processed inks. According to the companies, the polymer-based touch screen system provides superior touch performance, flexibility, stability, a high level of transparency, neutral color and low haze – all at an economic price
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Kodak and Heraeus co-developed a cost-effective ITO alternative
Apple files a patent discussing an OLED BLU for an LCD display
Nov 11th
Apple filed a new patent that discusses using an OLED backlighting unit (BLU) for an LCD display. According to the patent filing, an OLED BLU unit may be thinner than a LED BLU and also have an improved light uniformity without using light guides. The BLU may act like a ‘one large white pixel’, but Apple also discusses the option that it may have several controllable ‘areas’ which will receive grayscale image information which may be used to modulate the light brightness (like local-dimming in full-array LED panels). Finally Apple says that the BLU will include one or more ‘OLED units’ bonded between two glass pieces. We’re not entirely sure what they mean. Using an OLED BLU for an LCD display has been discussed before, although it seems that it will not be a very efficient design – if you have a white OLED, why not use color-filters and not an LCD at all? This is the architecture that LG Display proposes for its upcoming OLED TVs . read more
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Apple files a patent discussing an OLED BLU for an LCD display
Corning’s new Lotus Glass is suitable for high-end OLED and LCD displays
Oct 28th
Corning launched a new glass called Lotus Glass, which was developed for cutting-edge displays – such as OLEDs and next-gen LCDs (based on LTPS and Oxide-TFTs). Corning explains that the new glass has a high annealing point that delivers the thermal and dimensional stability required by these new high-performance displays. Lotus Glass has already been qualified and is now in production. Lotus Glass’s intrinsic stability means it can withstand the manufacturing thermal cycles better than conventional glass, and so enable tighter design rules needed in advanced backplanes (which are needed for high resolution and fast response time). It’s good to see a new glass substrate from Corning, although we’re still waiting for Corning’s future flexible glass as shown in their ” Day made of glass ” video released a few months ago (which features future designs made with durable, transparent and even flexible glass displays): read more
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Corning’s new Lotus Glass is suitable for high-end OLED and LCD displays
IMOLA – a new €5.1 million, 4 year European intelligent OLED lighting project
Sep 25th
IMOLA (Intelligent light management for OLED on foil applications) is a new EU-funded (€5.1 million) project that aims to realize large-area OLED lighting modules with built-in intelligent light management. The idea is that light intensity can be adjusted uniformly or locally according to the time of day or a person’s position – and applications include wall, ceiling and in-vehicle (dome) lighting. IMOLA’s OLED lighting module will consists of OLED tiles on a flexible backplane foil. Each tile can be individually controlled via the backplane. The intelligent part comes from a smart-power thin chip, advanced communication features and optical feedback. read more
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IMOLA – a new €5.1 million, 4 year European intelligent OLED lighting project
HP develops a new technology for producing large flexible OLED panels cheaply
Sep 25th
HP has developed a new method to produce large AMOLED panels, based on roll-to-rol manufacturing. They say that one of the biggest challenges to make flexible OLEDs is the alignment on large area flexible substrates. The new solution uses self-aligned imprint lithography (SAIL) to laminate a well-defined micro OLED (µOLED) frontplane unto a flexible active matrix amorphous silicon TFT backplane. SAIL process flow HP says they already built a proof-of-concept AMOLED device – which contains a flexible µOLED frontplane with OLED sizes of 50 µm on PET and active matrix backplane on polyimide with pixel pitches of 1 mm. The company claims that the new method will enable large area OLEDs at a very low cost. read more
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HP develops a new technology for producing large flexible OLED panels cheaply