Display Technologies

Techniques:  I-V, fast pulse, J-L-V, C-V, capacitance, impedance, Mott-Schottky
Applications:   Device degradation, mobility, charge carrier concentration, depletion layer, trap state, device lifetime and material purity / defects
Types: OLED, LED, LCD, AMOLED, PLED, Perovskite, quantum dot, flexible displays

New display technologies are enabling great advances in the development of portable computers, cell phones, flexible / transparent displays (e.g. automotive head-up displays), touch panels, and lightweight thin-screen TVs. For mobile devices there is a continuous push for improved battery life (low power), reduced weight and brighter screens, and new display technologies including OLED and AMOLED are providing much improved performance over previous generation displays. New technologies, including OLED, are also being developed to replace the incandescent light bulb by more efficient and longer lasting light sources, allowing more varied control of room lighting and colors, with the new technologies extending to automotive and street lighting applications.

Solartron Analytical provides the following test systems for the characterization of display materials:

  • The ModuLab XM MTS Test System provides complete time domain and AC device characterization using an extensive range of “Plug and Play” options:
  • The Model 1260A Impedance Gain Phase Analyzer is referenced in thousands of publications and is able to test capacitance/ C-V / impedance / Mott-Schottky from 10 µHz to 32 MHz (over 12 decades of frequency); enabling full characterization of high mobility devices together with sub 1 Hz degradation and lifetime studies
  • The Model 1296A Dielectric Interface System extends the impedance range of the 1260A in addition to providing greater accuracy by use of sample/reference techniques, and is often used in display applications
  • Temperature control options including Cryostats and Furnaces are available with all of the above measurement systems that provide automatic PC control of the sample temperature and allow complete material characterization

Glass and polymer dielectric materials used as display substrates and touch panels can also be tested using the above equipment

Refer to our application note for more information –
Characterization of OLEDs