Inkjet-Printed Dielectric Layer for the Enhancement of Electrowetting Display Devices
Electrowetting with a dielectric layer is commonly preferred in practical applications. However, its potential is often limited by factors like the properties of the dielectric layer and its breakdown, along with the complexity of the deposition method. Fortunately, advancements in 3D inkjet printin...
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| Format: | Article |
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MDPI AG
2024-02-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/14/4/347 |
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| author | Hongwei Jiang Rongzhen Qian Tinghong Yang Yuanyuan Guo Dong Yuan Biao Tang Rui Zhou Hui Li Guofu Zhou |
| author_facet | Hongwei Jiang Rongzhen Qian Tinghong Yang Yuanyuan Guo Dong Yuan Biao Tang Rui Zhou Hui Li Guofu Zhou |
| author_sort | Hongwei Jiang |
| collection | DOAJ |
| description | Electrowetting with a dielectric layer is commonly preferred in practical applications. However, its potential is often limited by factors like the properties of the dielectric layer and its breakdown, along with the complexity of the deposition method. Fortunately, advancements in 3D inkjet printing offer a more adaptable solution for making patterned functional layers. In this study, we used a negative photoresist (HN-1901) to create a new dielectric layer for an electrowetting display on a 3-inch ITO glass using a Dimatix DMP-2580 inkjet printer. The resulting devices performed better due to their enhanced resistance to dielectric breakdown. We meticulously investigated the physical properties of the photoresist material and printer settings to achieve optimal printing. We also controlled the uniformity of the dielectric layer by adjusting ink drop spacing. Compared to traditional electrowetting display devices, those with inkjet-printed dielectric layers showed significantly fewer defects like bubbles and electrode corrosion. They maintained an outstanding response time and breakdown resistance, operating at an open voltage of 20 V. Remarkably, these devices achieved faster response times of ton 22.3 ms and toff 14.2 ms, surpassing the performance of the standard device. |
| first_indexed | 2024-03-07T22:19:14Z |
| format | Article |
| id | doaj.art-912d0d60c35e4d0da6eaff7fd08076a7 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-07T22:19:14Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-912d0d60c35e4d0da6eaff7fd08076a72024-02-23T15:29:24ZengMDPI AGNanomaterials2079-49912024-02-0114434710.3390/nano14040347Inkjet-Printed Dielectric Layer for the Enhancement of Electrowetting Display DevicesHongwei Jiang0Rongzhen Qian1Tinghong Yang2Yuanyuan Guo3Dong Yuan4Biao Tang5Rui Zhou6Hui Li7Guofu Zhou8Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, ChinaCollege of Mechatronics and Control Engineering, Shenzhen University, Nanhai Ave. 3688, Shenzhen 518060, ChinaGuangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, ChinaElectrowetting with a dielectric layer is commonly preferred in practical applications. However, its potential is often limited by factors like the properties of the dielectric layer and its breakdown, along with the complexity of the deposition method. Fortunately, advancements in 3D inkjet printing offer a more adaptable solution for making patterned functional layers. In this study, we used a negative photoresist (HN-1901) to create a new dielectric layer for an electrowetting display on a 3-inch ITO glass using a Dimatix DMP-2580 inkjet printer. The resulting devices performed better due to their enhanced resistance to dielectric breakdown. We meticulously investigated the physical properties of the photoresist material and printer settings to achieve optimal printing. We also controlled the uniformity of the dielectric layer by adjusting ink drop spacing. Compared to traditional electrowetting display devices, those with inkjet-printed dielectric layers showed significantly fewer defects like bubbles and electrode corrosion. They maintained an outstanding response time and breakdown resistance, operating at an open voltage of 20 V. Remarkably, these devices achieved faster response times of ton 22.3 ms and toff 14.2 ms, surpassing the performance of the standard device.https://www.mdpi.com/2079-4991/14/4/347electrowetting display (EWD)inkjet printingdielectric layerphotoresistleakage current |
| spellingShingle | Hongwei Jiang Rongzhen Qian Tinghong Yang Yuanyuan Guo Dong Yuan Biao Tang Rui Zhou Hui Li Guofu Zhou Inkjet-Printed Dielectric Layer for the Enhancement of Electrowetting Display Devices Nanomaterials electrowetting display (EWD) inkjet printing dielectric layer photoresist leakage current |
| title | Inkjet-Printed Dielectric Layer for the Enhancement of Electrowetting Display Devices |
| title_full | Inkjet-Printed Dielectric Layer for the Enhancement of Electrowetting Display Devices |
| title_fullStr | Inkjet-Printed Dielectric Layer for the Enhancement of Electrowetting Display Devices |
| title_full_unstemmed | Inkjet-Printed Dielectric Layer for the Enhancement of Electrowetting Display Devices |
| title_short | Inkjet-Printed Dielectric Layer for the Enhancement of Electrowetting Display Devices |
| title_sort | inkjet printed dielectric layer for the enhancement of electrowetting display devices |
| topic | electrowetting display (EWD) inkjet printing dielectric layer photoresist leakage current |
| url | https://www.mdpi.com/2079-4991/14/4/347 |
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