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Lee, Myunghee
Automotive Electronic Systems and Semiconductor Lab
Research Interests
  • Automotive Electronic System Design
  • Automtoive Semicondutor IC design

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A current-mode display driver IC using sample-and-hold scheme for QVGA full-color a MOLED displays

Cited 16 times inthomson ciCited 19 times inthomson ci
Title
A current-mode display driver IC using sample-and-hold scheme for QVGA full-color a MOLED displays
Author
Baek, Jong HakLee, MyungheeLee, Jae HoonPae, Han SuLee, Chang JuKim, Jin TaeChoi, Chang SikKim, Hong KwonKim, Tae JinChung, Ho Kyoon
Keywords
AMOLED display; Current-mode driver; Sample-and-hold; Switched current
Issue Date
2006-12
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE JOURNAL OF SOLID-STATE CIRCUITS, v.41, no.12, pp.2974 - 2982
Abstract
A display driver IC based on a current-sink driving scheme has been developed for QVGA (240 x 320), low-temperature poly-silicon (LTPS) active matrix organic light-emitting diodes (AMOLEDs) displays. The current-mode driver IC consists of a source driver block and a controller block. It uses a sample-and-hold scheme in the source driver block. The source driver block has 720 channel outputs, an 8-bit segmented DAC, a pre-charge generation block, and a 64-level gray scale (64 selections out of 256 gray levels for Gamma correction) per channel. The source driver output current ranges from 10 nA to 10 mu m. The controller block generates control signals for the source driver and UPS drivers (emission and scan driver), which are integrated on the panel glass. The current-mode driver IC was fabricated in a 0.18-mu m CMOS technology (two poly and four metals) with 5.3-V high-voltage transistor devices
URI
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DOI
10.1109/JSSC.2006.885333
ISSN
0018-9200
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EE_Journal Papers
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