An Active Matrix Micro-Pixelated LED Display Driver for High Luminance Uniformity Using Resistance Mismatch Compensation Method
- Title
- An Active Matrix Micro-Pixelated LED Display Driver for High Luminance Uniformity Using Resistance Mismatch Compensation Method
- Author
- 홍성관
- Keywords
- Active matrix; micro-LED; current uniformity; luminance uniformity; micro-IC; fast switching
- Issue Date
- 2018-06
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Citation
- IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, v. 65, no. 6, page. 724-728
- Abstract
- This brief proposes an active matrix micro-pixelated light-emitting diode (AMLED) display driver to achieve a high luminance uniformity. The proposed AMLED display driver enhances the forward current uniformity of micro-LEDs by compensating for resistance mismatch between the micro-pixel circuits. The proposed AMLED display driver ICs were fabricated using a standard 0.18-mu m CMOS process with 6-V high voltage devices. They were assembled with a micro-LED array having a resolution of 16 x 16 x RGB and measured to verify the luminance uniformity of the AMLED display. The measured average deviation of the micro-LED forward current over all 768 pixels was 0.91% with an average current of 12.03 mu A, indicating that the proposed display driver achieved highly uniform luminance. Therefore, the proposed AMLED display driver is suitable for high-end display applications, offering high image quality.
- URI
- https://ieeexplore.ieee.org/document/8249533https://repository.hanyang.ac.kr/handle/20.500.11754/119168
- ISSN
- 1549-7747; 1558-3791
- DOI
- 10.1109/TCSII.2018.2790412
- Appears in Collections:
- RESEARCH INSTITUTE[S](부설연구소) > RESEARCH INSTITUTE OF INFORMATION DISPLAY(디스플레이공학연구소) > Articles
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