Surface-free technology by laser annealing (SUFTLA) and its application to poly-Si TFT-LCDs on plastic film with integrated drivers

被引:102
作者
Inoue, S [1 ]
Utsunomiya, S [1 ]
Saeki, T [1 ]
Shimoda, T [1 ]
机构
[1] Seiko Epson Corp, Technol Platform Res Ctr, Nagano 3990293, Japan
关键词
ablation; annealing; integrated drivers; laser; liquid crystal display (LCD); plastic; polycrystalline-silicon thin-film transistor (polysilicon TFT); substrate; thin film; transfer;
D O I
10.1109/TED.2002.801294
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In order to realize electronic devices on plastic film, new technology has been developed that enables the transfer of thin-film devices from an original substrate to another substrate by using laser irradiation. This technology was termed SUFTLA, which stands for surface-free technology by laser annealing. A polycrystalline-silicon thin film transistor (poly-Si TFT) back-plane for liquid crystal displays (LCDs) with integrated drivers was fabricated using a low-temperature process (below 425 degreesC) and could be successfully transferred from a glass or quartz substrate to plastic film using this technology. This technology enabled us to fabricate an all-plastic substrate TFT-LCD having a display area of 0.7 in measured diagonally and a pixel count of 428 x 238. In addition, the operation of the integrated drivers and the displayed image could be confirmed for the first time in the world.
引用
收藏
页码:1353 / 1360
页数:8
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