Application Cases

Empowering Flexible Displays and Biosensing: How High-Voltage Amplifiers Shape the New Ecosystem of Electroluminescence

Flexible electronic devices are advancing rapidly in fields such as luminescent displays, smart sensing, and artificial intelligence skin. Flexible electroluminescent devices are a research hotspot in flexible electronics, holding significant application value in future flexible display technologies, with substantial research and application potential in areas such as augmented reality, human-computer interaction, biomedicine, smart textiles, and wearable electronic devices.

Aigtek's high-voltage amplifiers are widely used in the field of new materials, offering various instruments tailored to different material parameters, capable of driving a wide range of electroluminescent materials for research across different domains.

Case 1: Study on the Characteristics of Electroluminescent Fibers

Figure: Photo of Electroluminescence Experiment Setup

Experimental Process: A signal generator produces an excitation signal, which is amplified by the ATA-2041 high-voltage amplifier and applied to the electrodes of the luminescent material, generating an electric field within the material. The frequency of the AC signal is varied using the signal generator, while the amplifier adjusts the electric field strength. The luminescence characteristics of the material under different voltages and frequencies are studied.

Case 2: Study on Touch-Controlled Electroluminescent Yarn and Its Pressure-Responsive Performance

Figure: Schematic and Physical Diagram of Touch-Controlled Electroluminescent Yarn

Experimental Process: Touch-controlled electroluminescent yarn was prepared for testing the sensing performance of pressure-sensitive fabrics. A function signal generator (output frequency: 10–10,000 Hz, output voltage: 2 V) and a high-voltage amplifier (gain: 0–1000) were used to drive the flexible electroluminescent yarn. An imaging luminance meter (integration mode: fixed mode, fixed time: 10 ms) was used to characterize the brightness of the flexible electroluminescent yarn under different electric field conditions, followed by other characterization tests.

Case 3: Wireless Electroluminescence Experiment

Figure: Flowchart of the Wireless Electroluminescence Experimental Setup

Experimental Process: The experiment used a frequency of 5 kHz with a voltage range of approximately 1–2 kV. A 2 kHz AC signal was generated by a signal generator and amplified using a power amplifier. One end of the output signal was grounded, and the other end was connected to a metal plane. The luminescent fiber was placed within 10 cm of the metal plane, and luminescence was achieved by touching the fiber with the human body. Throughout the process, the signal source, fiber, human body, and ground formed an energy loop, enabling the capture of wireless energy to drive the fiber to emit light. Ultimately, this wireless approach enabled new visualization applications such as solvent polarity monitoring, underwater luminescence, and touch-induced luminescence.

Recommended Power Amplifier: ATA-7000 Series

The ATA-7000 series is an ideal high-voltage amplifier capable of amplifying both AC and DC signals. It provides a single-ended output of 40 kVp-p (±20 kVp) to drive high-voltage loads.

ATA-7000 Series High-Voltage Amplifier Models and Specifications:

Figure: ATA-7000 Series High-Voltage Amplifier Specifications and Parameters

Aigtek continues to advance in the development of electronic testing instruments, striving to deliver more high-performance, high-specification new testing instruments to engineers. Stay tuned!