TDK Shows Flexible, See-through Passive Matrix OLED Panels

Oct 4, 2010 TDK Corp developed two types of passive matrix OLED panels. One is a flexible type whose display is bendable, and the other is a see-through type. The company prototyped each panel with color and monochrome displays.

The flexible OLED panel is as thin as 0.3mm or less. The weights of the color-display and monochrome-display models are 1.11g and 0.96g, respectively. With the use of a resin substrate, the thickness and the weighs were reduced to about 1/6 those of existing panels using a glass substrate. The flexible panel has a screen size of 3.5 inches and a pixel count of 256 x 64.
Also, the display is not affected even if the panel is bent to a curvature radius of up to 25mm. The flexible type is targeted at mobile devices including mobile phones.
TDK plans to start volume production of the panel at the end of 2011.

The transmittance of the see-through OLED panel is 50% or higher. The translucency was realized by keeping some areas inside a pixel from being occupied by, for example, organic EL devices.
The see-through panel has a screen size of 2 inches and a pixel count of 320 x 240 (QVGA). Its resolution was enhanced by employing a driver chip developed by Dialog Semiconductor Plc of Germany. The panel has a top-emission structure. Except for the use of a glass substrate, it is made by the same process as the flexible OLED panel.

TDK will exhibit the newly-developed OLED panels at Ceatec Japan 2010, a trade show that will take place from Oct 5 to 9, 2010, in Japan.
The panels will be mass-produced if asked by device makers.

Author:  BIO T&T

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