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One Drop Filling for Liquid Crystal Display Panel Produced from Larger-sized Mother Glass |
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AUTHORS |
| Akira Hirai |
Ryugasaki Works, Electronics Systems Integration Div., Mechatronics Group, Hitachi Plant Technologies, Ltd. |
| Isao Abe |
Ryugasaki Works, Electronics Systems Integration Div., Mechatronics Group, Hitachi Plant Technologies, Ltd. |
| Masaru Mitsumoto |
ODF Design Dept., Ryugasaki Works, Electronics Systems Integration Div., Mechatronics Group, Hitachi Plant Technologies, Ltd. |
| Shigeru Ishida |
DSP Design Dept., Ryugasaki Works, Electronics Systems Integration Div., Mechatronics Group, Hitachi Plant Technologies, Ltd. |
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OVERVIEW |
A cell-assembly line for liquid-crystal panels is a process for fitting together two glass substrates (i.e. a TFT substrate mounting the drive circuit for the liquid-crystal display and a CF substrate for displaying colors) in an arrangement that liquid-crystal material is filled between the substrates. A liquid-crystal vacuum filling system accomplishes "dropping method" — namely, a method in which liquid-crystal material is dropped directly onto one of the substrates, which is then aligned with the other substrate (with sealant dispensed on it) and bonded to it under vacuum. In this way, the weak point associated with the LCD injection method (that is, liquid-crystal injection requires a long time) is eliminated and lead time of cell process is significantly shortened, thereby opening up the way to expand the size of liquid-crystal panels. Hitachi Plant Technologies, Ltd. is providing manufacturing equipment with productivity that fits the needs of particular generations in accordance with the expanding market for liquid-crystal panels — which is succeeding lap-top PCs, monitors, and TVs.
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TO READ THIS ARTICLE |
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CONTACT FOR INQUIRY |
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Hitachi Plant Technologies, Ltd. |
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RELEVANT SITE |
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KEYWORDS |
liquid crystal drop, vacuum assembly system, one drop filling, seal dispenser, cell assembly
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