How do you think the new GigE standards will influence the machine vision industry?
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As the demand for liquid crystal displays spreads to new and different applications, user needs grow more diversified and sophisticated. Each potential market where the LCD plays has its own unique set of needs and requirements. The industrial mobile device market, for example, places size and power consumption constraints on the display, whereas in the test and measurement market, durability is key. Unfortunately, therein lies the problem. With such a diverse set of needs on one hand, and an array of viable LCD products on the other, selecting the appropriate display panel for a specific application can be quite a daunting undertaking.
REFINING THE SELECTION PROCESS
To assist in the process of selecting an appropriate display module for a specific application, a list of key questions can be used to refine the selection process and match the right display to the right market. That list includes questions like:
While it would be impossible within the confines of this article to examine the display requirements of all possible markets or applications, by keeping the above questions in mind, it is possible to look at a couple of specific market segments in greater detail.
MEDICAL MARKET: HIGH-END MONITOR APPLICATIONS
Displays are used today in a wide range of medical applications, including radiology/mammography, picture archiving and communication systems (PACS), magnetic resonance imaging (MRI) and computed tomography (CT). Here, typical display sizes range from 17 to 21 inches. Each application brings with it a diverse set of display requirements.
For diagnostic applications, medical professionals are now employing LCDs to make more informed, accurate diagnoses using high-resolution displays. For these applications, a high-resolution display, 1 megapixel and above, with precise grayscale characteristics is needed to read MRIs, CT scans, x-rays and mammograms. These displays must feature high luminance, high contrast and a wide viewing angle.