Low temperature active matrix display device and method of...

Details Low temperature active matrix display device and method of... Low temperature active matrix display device and method of...

2008-05-27

2008-05-27

Qi, Mike (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S038000, C349S039000

Reexamination Certificate

active

07379149

ABSTRACT:
Provided are a low temperature active matrix display device using a plastic substrate and method of fabricating the same. The low temperature active matrix display device includes: a plastic substrate; a reflection layer disposed on the plastic substrate; a buffer layer disposed on the reflection layer; a thin film transistor disposed on the buffer layer in a first region of the plastic substrate; an interlayer dielectric layer disposed on the thin film transistor; a capacitor disposed in a trench formed in a second region of the plastic substrate and having a first electrode connected to a source electrode and a drain electrode of the thin film transistor, the trench extending from the interlayer dielectric layer to the reflection layer; and a display device having one electrode connected to a second electrode of the capacitor. The above-described structure includes photoresist spacers to decrease a leakage current from the TFT, includes a reflector to protect the plastic substrate from deformation due to laser irradiation, and employs a three-dimensional capacitor to increase an aperture ratio.

REFERENCES:
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patent: 7129636 (2006-10-01), Chang
patent: 2004/0169460 (2004-09-01), Chang et al.
patent: 2005/0045885 (2005-03-01), Kim et al.
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patent: 2006/0113900 (2006-06-01), Oh
patent: 2007/0132374 (2007-06-01), Park
patent: 10-2003-75767 (2003-09-01), None
patent: 2003-0082139 (2003-10-01), None
patent: WO 02/037570 (2002-05-01), None
IEEE Electron Device Letters, vol. 25, No. 7, Jul. 2004, pp. 486-488.

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