File Download
There are no files associated with this item.
SFX Link
- Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
- Kim, Jae Joon
- Circuits & Systems Design Lab.
Views & Downloads
Detailed Information
Cited time in 
Cited time in 
Cited time in
Metadata Downloads
A Pixel Circuit with Leakage Current Compensation Using PWM-based Data Cycling for AMLED Displays
- Author(s)
- Jeon, Wungki, Hwang, Sungho, Kim, Jae Joon, Lee, Myunghee
- Issued Date
- 2023-01
- Citation
- IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, v.70, no.1, pp.61 - 65
- Abstract
- This brief presents a leakage current compensation scheme by using a data cycling function to a pixel driver circuitry of the active-matrix light emitting diode (AMLED) displays. The proposed function cycles the stored dimming data to repeat pulse width modulation (PWM) multiple times at a given frame time. It compensates for a decay of the LED driving current due to leakage by repeatedly charging the target dimming data across a storage capacitor in the current driver. The proposed circuit has been fabricated using a 0.18-μm CMOS process. The test chip includes a 2×16 pixel circuit array with a control system. The functional operation has been verified at a prototype using an 8 × 16 LED array system.
- Publisher
- Institute of Electrical and Electronics Engineers
- ISSN
- 1549-7747
- Keyword (Author)
- Active-matrix LED display, pulse width modulation (PWM), pixel circuit, leakage current
- Keyword
- GATE
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.