A Temperature Compensation Method by Adjusting Gamma Voltages for High Luminance Uniformity of Active Matrix Organic Light-Emitting Diode Displays
- Title
- A Temperature Compensation Method by Adjusting Gamma Voltages for High Luminance Uniformity of Active Matrix Organic Light-Emitting Diode Displays
- Author
- 홍성관
- Keywords
- Organic light-emitting diode (OLED); temperature compensation; high luminance uniformity; gamma voltage
- Issue Date
- 2019-11
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Citation
- IEEE JOURNAL OF THE ELECTRON DEVICES SOCIETY, v. 8, no. 1, Page. 1-8
- Abstract
- In this paper, a temperature compensation method is proposed for active-matrix organic light-emitting diode (AMOLED) displays to achieve high luminance uniformity over a wide operating temperature range. The proposed temperature compensation method compensates for variation in OLED luminance according to temperature by adjusting the gamma voltages. To verify the proposed method, a built-in test circuit, which includes temperature sensors, current calculation block, current adjustment block, and gamma voltage generator, was fabricated using 90 nm complementary metal-oxide semiconductor process technology with 6 V high-voltage devices. The measurement results show that the proposed method achieves a high luminance uniformity with an OLED luminance variation of less than 1.54 cd/m(2) over the temperature range of -45C to 60C. Therefore, the proposed temperature compensation method is suitable for AMOLED displays requiring high luminance uniformity.
- URI
- https://ieeexplore.ieee.org/document/8908658https://repository.hanyang.ac.kr/handle/20.500.11754/155013
- ISSN
- 2168-6734
- DOI
- 10.1109/JEDS.2019.2954889
- Appears in Collections:
- RESEARCH INSTITUTE[S](부설연구소) > RESEARCH INSTITUTE OF INFORMATION DISPLAY(디스플레이공학연구소) > Articles
- Files in This Item:
- A Temperature Compensation Method by Adjusting Gamma Voltages for High Luminance Uniformity of Active Matrix Organic Light-Emitting Diode Displays.pdfDownload
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