OLED (Organic Light-Emitting Diode) Breakthrough

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The EETimes today has run a story that OLEDs creating a white light brighter than light bulbs and almost as bright as fluorescents. An important feature of the OLED is they do not need a back light to function. This can make for displays that a much thinner, and use less power.

"We have achieved 78 lumens using our grid and lens structures--almost as much as fluorescents," said Forrest. "And when you consider that a lot of the fluorescent tubes light is lost, since it comes out it all directions around the tube, our white OLEDs will be perceived in many applications as brighter than fluorescents." Source: eetimes.com

This is quite a break through from the Michigan Memorial Phoenix Energy Institue. Sure hope someone updates Wikipedia.org as currently it states: "OLEDs typically emit less light per area than inorganic solid-state based LEDs which are usually designed for use as point-light sources."

Wikipedia states the advantages best when it says:
The radically different manufacturing process of OLEDs lends itself to many advantages over flat-panel displays made with LCD technology. Since OLEDs can be printed onto any suitable substrate using an inkjet printer or even screen printing technologies,[30] they can theoretically have a significantly lower cost than LCDs or plasma displays. Printing OLEDs onto flexible substrates opens the door to new applications such as roll-up displays and displays embedded in fabrics or clothing.

OLEDs enable a greater range of colors, brightness, and viewing angle than LCDs, because OLED pixels directly emit light. OLED pixel colors appear correct and unshifted, even as the viewing angle approaches 90 degrees from normal. LCDs use a backlight and cannot show true black, while an "off" OLED element produces no light and consumes no power. Energy is also wasted in LCDs because they require polarizers which filter out about half of the light emitted by the backlight. Additionally, color filters in color LCDs filter out two-thirds of the light. OLEDs also have a faster response time than standard LCD screens.

I hope my existing laptop holds up til I can get a new one that features an OLED display.

Tcat Houser is an experienced traveler with an Internet travel portal which can be found at www.travel4roadwarriors.com

 

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