DIMOS – the first commercial LCD modeling software worldwide
for fast and effective development and optimization of LCDs and optical films.
Analysis and research of liquid crystal display devices (LCDs) via numerical modeling has become indispensable in research and development of new electro-optical effects in LCs and for the optimization of existing LC-display effects because it allows exact and individual control of all model parameters and provides fast results, thus being an ideal complement to the optical workbench in the laboratory.
Numerical modeling of LCDs as a research tool was introduced by van Doorn and Berreman in 1975 to explain the origin of the “bounce” in the dynamical optical response of TN-cells. Even though the potential of the method was demonstrated by these papers it remained a tool for theoreticians and special research applications over many years.
In 1987, when DIMOS was introduced as the first commercial multipurpose software tool for numerical modeling of LCDs, considerable efforts were undertaken both by autronic, the manufacturer of the software, and the users in the LCD industry to compare the various results of modeling with experiments in order to check the validity of the numerical models which were mainly applied to TN and STN-cells in those days.
DIMOS for the first time combined computation of the field-induced alignment of the LC-director in the static and dynamic case (including elastic boundary coupling) with an improved 4×4-matrix method for evaluation of the optical properties of the display-system including light-source and filters (DIMOS optical workbench).
- DIMOS algorithms have been proven to be accurate and reliable by more than 20 years of industrial use.
- DIMOS realizes the concept of parameter variations in a single simulation session (layers, materials and cell parameters, electrical driving, etc.).
- DIMOS director-field calculations (static, dynamic) are based on a finite element method.
- DIMOS materials: isotropic, uniaxial, biaxial and chiral-nematic LC.
- DIMOS elastic surface anchoring model for tilt and twist.
- DIMOS optical engine with either extended 2×2 Jones matrix or 4×4 Berremann matrix method improved by H. Wöhler.
- DIMOS calculates spectral transmission and reflection for detailed colorimetric analysis.
Select your DIMOS according to the complexity of your modeling task:
- DIMOS.1D for stacked unbounded layers.
- DIMOS.2D for cross-sections through the LCD.
- DIMOS.3D for definition of arbitrary 3-dimensional structures.