9 Display MTF Measurement System Manufacturers in 2024
This section provides an overview for display mtf measurement systems as well as their applications and principles. Also, please take a look at the list of 9 display mtf measurement system manufacturers and their company rankings. Here are the top-ranked display mtf measurement system companies as of April, 2024: 1.CI Systems, Inc., 2.ASTRODESIGN,Inc., 3.PROLOG OPTICS LTD..
Table of Contents
What Is a Display MTF Measurement System?
A display modulation transfer function (MTF) measurement system is a device for assessing display resolution using MTF, a spatial frequency characteristic of optical systems, commonly found in displays.
Display resolution depends on factors beyond pixel count and scanning lines, such as pixel arrangement, luminance, contrast, gamma characteristics, color reproduction range, color temperature, and white balance. MTF is a theoretically solid method for evaluating overall system resolution, from TV camera lenses to transmission systems, display characteristics, and human visual perception.
Optical property evaluation of displays includes glare, sharpness, anti-glare, and transmission distribution. Sharpness, or the blurriness of an image, is assessed using point spread function (PSF), line spread function (LSF), and amplitude transfer function (MTF).
MTF is plotted against spatial frequency, with higher values indicating better transfer characteristics and less blur.
Uses of Display MTF Measurement Systems
Display MTF measurement systems evaluate the sharpness of displays and their components, serving as vital quality control tools.
They are particularly used for assessing LCD panels in devices like 4K/8K TVs, cell phones, PCs, in-vehicle systems, and measuring instruments. MTF measurement features high accuracy, cost-effectiveness, and ease of operation.
Principle of Display MTF Measurement Systems
In MTF measurement, the input signal from a camera maintains a constant amplitude at high frequencies, with the output amplitude decreasing with increasing frequency. This output is the MTF.
MTF can be measured using three methods: slit, edge, and chart methods.
1. Slit Method
This method involves capturing a metal slit image and performing a Fourier transform. It is primarily used in the United States and requires relatively expensive test devices.
2. Edge Method
The edge method, recommended by the International Electrotechnical Commission (IEC), calculates MTF by Fourier transforming an edge image to obtain the LSF.
3. Chart Method
The chart method captures a square wave test pattern, corrects it to obtain the input/output contrast ratio of a sine wave, and is commonly used in Japan and Europe due to lower test device costs.
Features of Display MTF Measurement Systems
Display MTF measurement systems, combined with a signal generator and a measurement camera, can evaluate display MTF effectively. They can also measure graininess, luminance uniformity, and gradation curve with high accuracy.
Display MTF Measurement Systems Manufacturers
Few manufacturers specialize in display MTF measurement systems.
DM&S, a German company, offers the SMS-1000, measuring glare and evaluating sharpness, anti-glare, and transmission characteristics. Astrodesign Inc. provides the DT series, developed in collaboration with NHK, for real-time MTF measurement of displays. S.S. Giken Co., Ltd. offers the NS-2002 system, evaluating resolution, graininess, and tonality of X-ray display images using MTF.
List of 9 Display MTF Measurement System Manufacturers
*Including some distributors, etc.
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TOUMEIGIKEN Co., Ltd.
custom optical measuring system
Manufacturer Overview
TOUMEIGIKEN Co., Ltd., established in Ageo City, Saitama, Japan, is a manufacturer of optical measuring instruments. Its product line includes Laser Interferometers, crucial for precision evaluation of surface shape and accuracy in polished items like lenses and mirrors. The company also offers various types of standard lenses for laser interferometers, facilitating the measurement of surface accuracy in convex and concave lenses. Notably, its Fringe Analyzer, introduced in 2020, features enhanced user interfaces and new analysis functions like ISO10110-5 support, ensuring accessible yet high-precision measurement, evaluation, and analysis for both novices and experts.
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Display MTF Measurement System Manufacturer Ranking
*Including some distributors, etc.Ranking as of April 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | CI Systems, Inc. |
17.6%
|
| 2 | ASTRODESIGN,Inc. |
17.6%
|
| 3 | PROLOG OPTICS LTD. |
11.8%
|
| 4 | Laser Optronic S.r.l. |
11.8%
|
| 5 | PHASICS S.A |
11.8%
|
| 6 | Image Science Ltd |
11.8%
|
| 7 | TRIOPTICS GmbH |
11.8%
|
| 8 | HP INSTRUMENTS |
5.9%
|
Derivation Method
The ranking is calculated based on the click share within the display mtf measurement system page as of April 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
- TRIOPTICS GmbH: 500
- ASTRODESIGN,Inc.: 170
Newly Established Company
- PHASICS S.A: 2003 (21 years ago)
- PROLOG OPTICS LTD.: 1996 (28 years ago)
- HP INSTRUMENTS: 1995 (29 years ago)
Company with a History
- Laser Optronic S.r.l.: 1975 (49 years ago)
- CI Systems, Inc.: 1977 (47 years ago)
- ASTRODESIGN,Inc.: 1977 (47 years ago)
Display MTF Measurement System Manufacturers in United States
*Including some distributors, etc.
Global Distribution of Display MTF Measurement System Manufacturers by Country
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
Japan
|
2 | 22.2% |
United States of America
|
1 | 11.1% |
Israel
|
1 | 11.1% |
Italy
|
1 | 11.1% |
India
|
1 | 11.1% |
France
|
1 | 11.1% |
United Kingdom
|
1 | 11.1% |
Germany
|
1 | 11.1% |
List of Display MTF Measurement System Products
1 product is listed.
Aphrodido Co., Ltd.
Display space resolution evaluation system (MTF measurement evaluation) DT-8031
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