Here's a pretty cool OLED display announcement:
IDEMITSU KOSAN DEVELOPS A FULL-COLOR ORGANIC EL AND PRODUCES A PROTOTYPE
5-INCH 1/4 VGA PANEL
Idemitsu Kosan has developed a full-color organic EL display panel
technology
and produced a prototype of the panel wich is a full-color 5-inch panel.
The
full-color capability has been implemented through the use of the company's
proprietary color conversion technology.
The new panel, capable of displaying 16,770,000 colors in 256-grayscale, is
intended for use in 1/4 VGA featuring 320 x 240 pixels. Despite its simple
matrix drive mechanism, the new panel can reproduce animation pictures at
video rates. With a thickness of only 2 mm and a weight of 80 g, the panel
is extremely slim and light.
In the area of element technologies, Idemitsu Kosan employs vapor
deposition
of a high-luminosity, high-efficiency, long-life organic blue-emission
material to create an ultra-thin film. The result is a material capable of
emitting blue light with a high degree of brightness and of achieving a
high
emission efficiency while requiring only a low voltage. The new product
offers a brightness of 100 cd/m2, a half life of 20,000 hours, and a fast
response speed of 1 ms. Capable of achieving an instantaneous luminosity
greater than 10,000 cd/m2, the panel is well-suited for displaying
animation
pictures.
For full-color implementation, Idemitsu Kosan uses the combination of a
blue
mono-color EL display, which the company announced at SID in May, and a
proprietary color conversion technology. Specifically, the panel
incorporates a color conversion material that transforms blue emissions
into
green and red. This material is patterned in front of an organic blue EL
display. The new panel can be produced in fine pitches of 300 mm employing
the printing method and 100 mm or less using photolithography.
Idemitsu Kosan is targeting the new panel for applications such as
wall-mounted TV sets; cellular phones, game machines, and other portable
units; on-vehicle TVs, car navigation devices, and other vehicle-mounted
units; and notebook PCs. The company is trying to sell the new
manufacturing
technology to home electronics vendors. |
