New Sony OLED Display

Sep 15 2004, 4:07am EST | by Luigi Lugmayr

Sony Corporation will start mass production of a full-color Organic Light Emitting Diode (OLED) display, which will be first implemented in the new Sony CLIE PEG-VZ90 personal entertainment handheld we reported about yesterday.

A 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. Sony used their Super Top Emission technology for better brightness and greater color gamut. Sony says that these translate into image quality and clarity that could previously viewed only on CRT (cathode ray tube) displays.
The new Sony 3.8 inch, full-color OLED measures is 2.14 mm thin. The resolution is 480x320 (HVGA) with 262,144 colors. Contrast ratio is Approx. 1000 : 1, compared to a Sony LCD which has about 100:1 this is quite a difference.

What is Sony's Super Top Emission:
As the name implies, Super Top Emission leads light emission from the upper side of the organic material, realizing a brightness level of 150cd per square meter. Also, by optimizing the thickness of the organic layer for each of the color components, RGB, Sony realized multi-interference of reflecting light. Additionally, with the cavity multi-reflection interference structure which enables emission of colors with high purity, bright and brilliant color gamut comparable to that of CRT is realized.
More details in Sony Press-Release.

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Luigi Lugmayr
Luigi is the founding chief Editor of I4U News and brings over 15 years experience in the technology field to the ever evolving and exciting world of gadgets. He started I4U News back in 2000 and evolved it into vibrant technology magazine.
Luigi can be contacted directly at ml@i4u.com. Luigi posts regularly on LuigiMe.com about his experience running I4U.