We report the first fabrication of pigment particle-based electrowetting display (EWD) by using the requisite poly(isobutylene)-imide (PIB-imide) for effectively dispersing insoluble colorant in decane/water system. The series of PIB-imide dispersants were prepared from the amidation/imidation of PIB-succinic anhydride with different hydrophobic lengths and a suitable amine. The structurally tailored dispersants by adopting the highly hydrophobic PIB tails allows the formation of homogeneous dispersion of nanosized pigment particles in decane and clearly separated from water. The pigment dispersion at particle size of ca. 100 nm and a low viscosity of 2-3 cps was obtained and fabricated into an EWD device which was operated at a driving voltage of 15-20 V in achieving a maximum aperture ratio of 80%. With the advantage of both fast response time and vivid color, the pigment-based EWD, as shown in the video, stands out as a promising new option for future transparent display and serves as a critical foundation for the next-generation advanced display applications.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/am401840b | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Article Synopsis
- Electrowetting displays (EWD) are emerging as a promising electronic paper technology due to their rapid response times, high reflectivity, and energy efficiency, but oil film reflux affects their luminance stability.
- A simulation model using the phase field method (PFM) was developed to enhance EWD performance, showing minimal mass loss during simulations and highlighting the effect of driving waveforms on charge accumulation.
- Tests indicated a significant improvement in response time (75.9% faster), luminance (4.70% increase), and stability of luminance fluctuations (79.34% enhancement) using an optimized driving waveform compared to traditional methods.
Optimizing Bipolar Reset Waveform to Improve Grayscale Stability in Active Matrix Electrowetting Displays.
Micromachines (Basel)
October 2024
Guangdong 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, China.
Article Synopsis
- * The study examines how different polarities of driving voltage affect oil backflow, which can impact display quality, and proposes a new driving waveform to address this issue.
- * Testing showed that the new waveform reduced oil backflow speed and fluctuations in brightness, enhancing the overall performance of the electrowetting display compared to traditional methods.
Electrowetting hysteresis on a deformable dielectric film.
Soft Matter
October 2024
NanoEngineering Group, Department of Mechanical Engineering, Technion - Israel Institute of Technology, Haifa 3200003, Israel.
Electrowetting on dielectric (EWOD) involves actuating droplets through electrical stimulus while the droplets lie on a dielectric layer that covers the electrode. In order to activate the droplet, a higher threshold voltage is required due to electrowetting hysteresis. The effect of a deformable dielectric layer and its thickness on electrowetting hysteresis has not been studied.
View Article and Find Full Text PDFLiquid lens based holographic camera for real 3D scene hologram acquisition using end-to-end physical model-driven network.
Light Sci Appl
February 2024
School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, 100191, China.
With the development of artificial intelligence, neural network provides unique opportunities for holography, such as high fidelity and dynamic calculation. How to obtain real 3D scene and generate high fidelity hologram in real time is an urgent problem. Here, we propose a liquid lens based holographic camera for real 3D scene hologram acquisition using an end-to-end physical model-driven network (EEPMD-Net).
View Article and Find Full Text PDFInkjet-Printed Dielectric Layer for the Enhancement of Electrowetting Display Devices.
Nanomaterials (Basel)
February 2024
Guangdong 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, China.
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.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!