[FPDI/GD] Samsung Exhibits Flexible WVGA OLED Panel

Nov 10, 2010
Shinya Saeki, Nikkei Electronics
The 4.5-inch flexible OLED panels
The 4.5-inch flexible OLED panels
[Click to enlarge image]
[Click to enlarge image]

Samsung Mobile Display Co Ltd (SMD) developed a 4.5-inch OLED panel that can be bent with a curvature radius of 10mm and exhibited it at FPD International 2010/Green Device 2010.

The most distinctive feature of the panel is its pixel count of 800 x 480 (WVGA), which is equivalent to that of a panel used for existing smart phones and mobile phones. SMD's existing OLED panel has a size of 6.5 inches and a pixel count of 480 x 272 (See related article).

The new display is 240μm thick. Low-temperature polysilicon TFTs were formed on a polyimide substrate. The structure of its organic EL element is the top-emission type, which extracts light in the direction opposite to the TFT substrate. Low-molecular light-emitting materials of red, green and blue colors were applied by using a vapor deposition technology.

The brightness and contrast ratio of the panel are 250cd/m2 and 100,000:1, respectively. It can display about 16.7 million colors and has a 100% or higher color gamut on NTSC standards. The release date of the panel has not been decided yet.