Systems | Giant Testing Equipment Company Limited

The DMS system, the fundamentals of which were already in place in the 1980s, is a globally recognized reference system for the goniometric measurement of electro-optical displays and components. It is used both in development and quality control. On the basis of ongoing refinements and diverse accessories, the high-precision DMS goniometer delivers tailor-made solutions for ever new measurement tasks arising from state-of-the-art display technologies.

Key Features:

6-axis, motorized goniometer system
Measurement of luminance, contrast, color coordinates in different control statuses of the display and angles of view
Electro-optical transfer characteristics and flicker measurement
Qualification of environmental influences such as temperature and ambient light on electro-optical display characteristics
Measuring microscope with spectrometer and photometer connection
Interface for control of the sample

Requirements for goniometric display measurements

The requirements placed on goniometric display measurements are as diverse as the applications of our customers. The modular platform of the DMS system permits the optimum solution to be configured for every measurement task and technology.

Typical measurement tasks with the DMS system:

Design and optimization of displays
Development of correction filters
Analysis of optical parameters as a function of material temperature
Analysis of optical parameters in different ambient light scenarios
Definition and creation of product specifications
Automated quality control and characterization

An all-in-one system for comprehensive display characterization typically consists of the following components:

Component	Description
Goniometer	A basic DMS 201, 505, 803, 903 device as a manual or fully motorized goniometer and measuring microscope
Spectroradiometer	CAS 140D array spectrometer
Photometer	PMT 3/100 fast photometer with 100 kHz bandwidth
Halogen light source	HEL-4 tungsten halogen lamp
Xenon light source	LC-8 Xenon lamp
Lighting unit: diffuser hemisphere	DHS for determination of contrast in reflective displays
Lighting unit: integrating sphere	SDR for measurement of the diffuse reflection factor under 8° SPINC/SPEX
Lighting unit: VADIS	Diffuse lighting with variable aperture for measurement of display characteristics in ambient light
Lighting unit: PID	Parallel illumination for BRDF measurements
Lighting unit: PLS	LED point light source
HCS temperature control chamber	HCS-3B temperature control chamber for air heating/cooling over a temperature range of -40°C to +105°C. Optional with integrated sample holder and diffuser lighting
Software	DMSControl control and measurement software. ViPer software for data analysis and visualization

Schematic drawing of display measurement with a DMS system.

From automotive to AR/VR

DMS systems specify, optimize and evaluate the displays, components and materials of every technology in terms of their impact on the human visual system. They are to be found in automotive development labs and end-of-line quality controls of many display production lines in Asia. As they accurately simulate the human eye, they are ideally suited to new applications such as AR/VR.

Our system experts will be pleased to provide competent advice on your particular application. Together we will find the right solution – just ask us!