Electronic Grids (Banks)
On the other hand, solution processing techniques, for example, printing techniques, are currently being researched due to improved processability and increased economic efficiency in the fabrication of organic electronic devices, e.g., display devices (e.g., electroluminescence devices and light-emitting diode devices). However, when a liquid material (an ink material) is filled and a thin film pattern is formed to fabricate an organic electronic device by a solution processing technique, there may arise problems that the liquid material overflows and is introduced into pixel regions of adjacent organic electronic devices, resulting in degradation of the characteristics of the adjacent organic electronic devices.
To overcome these problems, banks may be formed as partition members that divide pixel regions to prevent or reduce occurrence of cross-talk between devices and to define desired regions so that an ink material may be filled only within the desired regions. (Hahn et al, US Patent 7,820,730; 1/26/2010)
Applications
Electrical Applications
Organic Electronic Devices
Recent US Patents
10/26/2010
7,820,730
Perfluoropolyether copolymer composition for forming banks
Hahn et al of Samsung Electronics, South Korea used a solution coating process of a perfluoropolyether derivative and a photosensitive polymer to form banks or barriers between thin film transistors during printing or fabricating sets of transistors. (RDC 2/18/2011)