Instrument Systems KONICA MINOLTA Group DMS Series Goniometer systems for display characterization

Fig. 1: he diffusing hemisphere is a valuable DMS-accessory for contrast measurement of reflective displays T The DMS series is recognized as a worldwide standard and reference for extensive analyses of electrooptical displays, related materials and components at every stage of the engineering and production process. It consists of four individual goniophotometric systems, varying in size and function. All DMS systems enable: y easurement of luminance, M contrast and chromaticity under different display driving states and viewing directions y etermination of flicker and D response time y ualification...

02 \\ Diverse customers, various measurement challenges Analysis Quality Control CHALLENGES Material & Component Maker LC/OLED cells Optical films Display Panel Maker Display Integrator LC/OLED panels Display Manufacturer Display systems Brand owner Fig. 2: Applications in the display industry The versatility of the DMS series is mirrored in the diversity of our customers. Instrument Systems has always the perfect system – for all kinds of DUTs and measurement challenges such as product specification, optimization or quality control. Material, component and display panel manufacturers analyze...

The instruments of the DMS series are designed to measure and qualify any electro-optical display under typical application situations representing complex human handling: Y Control of the viewing direction ($ axis, 0 axis) Y Control of the lateral measurement position (X, Y axis) Y Control of ambient illumination (illuminance level, geometry, spectral distribution, angle of incidence) Y Control of DUT temperature Y Control of displayed patterns or electrical driving parameters In order to obtain accurate and repeatable measurement results, one parameter is varied while all others are kept constant....

A heat-cool system may be integrated for temperature-dependent measurements and conformance testing as required e.g. for automotive standards. Different illumination devices simulate the disturbing impact of ambient light on displays. A transmissive light source can be used to qualify passive LC components or polarizer films. A comprehensive software package (DMSControl/ViPer Evaluation) controls automated measurement procedures and generates comprehensive result reports. Each DMS basic system can easily embed customized solutions such as fixtures, additional optics or specific driving devices....

1 Limited thickness of DUT. Max. DUT thickness: 15 mm.

A key feature of the optical design of the DMS systems is that photometric parameters and spectral distributions can be determined within one measuring process. This concept allows measurement of multiple parameters within one system. Microscope optic A spectrometer and photometer are connected via optical fiber to a microscope optic, which represents the human observer. The microscope features either a view finding camera or an eyepiece with magnification optics and integrated target crosshairs for accurate set-up and focusing on the DUT surface. It enables reproducible selection, either motorized...

◄ Fig: 5: CAS 140D - Reference spectroradiometer with highest color accuracy High-end spectroradiometer CAS 140D The determination of all photometric and colorimetric quantities results from software calculation of the spectral measurement data. This is why the quality and precision of the spectroradiometer in action is extremely important. The CAS 140D, which is recommended for the DMS systems, combines highest measurement accuracy, reliability, and stability. Its excellent technical specifications and high optical throughput make it an extremely versatile device for usage in reference laboratories...

Fast photometer PMT 3 High-quality displays need fast transitional periods to visualize moving images. Thus, rapid temporal changes in luminance have to be measured, necessitating an extremely fast-performing measurement device. The PMT 3, a fast photometer with photomultiplier tube, has been optimized for this application. Due to its high sensitivity, the PMT 3 is also suited to light detection of very week signals. Transfer and extremely fast switching characteristics e.g. of OLED cells or light artefacts as flicker can be measured in the microsecond range. Internal low pass filters allow disturbing...

06 \\ MS series customized for D different applications The DMS series is used in a wide range of applications. Each application has its own requirements, and needs different modification. If the application calls for highly accurate, repeatable angular measurements, the DMS series is the best choice. The modular concept of the DMS series makes this special customization possible, saving time and effort. The DMS 904 with extra big chamber and heat-cool system gives even more flexibility concerning DUT dimensions, e.g. for large curved automotive displays. Examples of customized solutions 2D angular...

Wafer testing y ngular distribution of luminous A intensity y ominant wavelength shift D y A adaption for high angular N resolution y otorized probes for DUT driving M y emperature controlled T Large scale Automotive display testing (DMS 904) y dditional motorized x-axis for A curved displays y xtra big chamber and heat-coolE system for large devices Our system experts will be pleased to provide competent advice on your particular application. Together we will find the right solution for your application. Instrument Systems } DMS Series

07 \\ CS Heat-cool system H Each DMS system can be extended with an appropriate heat-cool system to take temperature-dependent measurements of optical display properties and conformance testing. Since only the DUT is exposed to the airflow, the microscope, LMDs and goniometer remain constant at room temperature. Precise airflow control allows measurement of the test specimen at stabilized temperatures in the range -40 °C to +105 °C. HCS systems can be complemented with the following accessories: y Extension rings for testing different DUT heights y R otary stage for smaller LC test cells to measure...