Samsung generates largest high-res flexible LCD

November 28, 2005 — Samsung Electronics Co. Ltd., Seoul, Korea, has reportedly manufactured the largest flexible thin-film transistor liquid-crystal display (TFT-LCD) that shows high enough resolution for digital television. The display is 7 in., 640×480 (VGA standard), on a flexible plastic substrate that is thinner, lighter, and more durable than conventional glass LCD panels. The new display is double the size of Samsung’s 5-in. flexible LCD prototype unveiled in January.

Plastic substrates often deform when subjected to commercial thermal conditions. Researchers developed a low-temperature (<130°C) processing technique that can be used to manufacture the amorphous thin-film transistors, color filters, and liquid crystals at process temperatures much lower than standard glass-based, amorphous silicon (a-Si) technology. The process prevents thickness changes and image distortion by binding together two thin panels in a proprietary system design.

The flexible LCD panel was developed under a three-year program funded by Samsung Electronics’ next-generation display development group with the backing of the Korean Ministry of Commerce, Industry and Energy, and supported by Samsung’s Corporate Research Fund.


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