Electron‐beam deposition of MgO on plastic substrate and manufacturing flexible flat fluorescent lamp |
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Authors: | Jung Min Cho Kyoung Ho Lee Chae Il Cheon Woon Seog Choi Jeong Seog Kim Nam In Cho |
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Affiliation: | 1. Department of Display Engineering, Hoseo University, Korea;2. Department of Semiconductor and Digital Display Engineering, Hoseo University, San 29‐1, Sechul‐ri, Baebang, Asan‐si, Chungnam‐do 336–795, Korea;3. Department of Electronic Engineering, Sun Moon University, Korea |
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Abstract: | Abstract— A flexible fluorescent lamp that utilizes the same plasma discharge mode as in PDPs has been manufactured. The structure of the flexible lamp is simple and easy to manufacture. All‐plastic materials including plastic substrates, barrier ribs (spacers), and sealants for low‐temperature manufacturing processing have been adopted except for the phosphor and MgO thin film. The MgO thin films were coated on the plastic substrates as a protection layer against the plasma discharge. The adhesion and biaxial texture of MgO thin film deposited on the plastic substrates, poly‐ethyle‐nenaphthalate (PEN) and polycarbonate (PC), at low temperature (100–180°C) has been characterized. The MgO film on PEN shows good adhesion under a repeated bending test. The manufactured flexible lamp consists of two plastic substrates of about 3 in. on the diagonal, barrier rib (spacer), and external ITO electrodes. The Ne‐Xe (5%) gas mixture at 100–200 Torr was used for the discharge gas. A maximum surface luminance of about 100 cd/m2 was achieved for a 1 ‐kHz AC pulse. |
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Keywords: | Flexible fluorescent lamp discharge plastic substrate MgO film adhesion biaxial texture |
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