1. The number of people that will be viewing the monitor. If a single viewer, then a smaller size may suffice. If several people will view it simultaneously, then a monitor with a wide viewing angle is crucial.
2. Where will it be used? Manufacturing environments may require rugged LCD displays which can withstand dust, dirt, moisture, heat, cold, shock, vibration and direct impact. A monitor in a small kiosk would benefit from a touch screen, and perhaps a vandal-proof covering.
If the monitor is to be used outdoors, or in brightly-lit areas, you may want to consider anti-glare or anti-reflective coatings. If used in direct sunlight, an optically bonded monitor or a sunlight LCD monitor may be best.
If the monitor is to be embedded in a machine or kiosk, then a panel mount or rack mount monitor would be useful. Or, will it be wall or ceiling mounted? (Look for VESA mount holes on the rear of the monitor.) Does the monitor need to be waterproof? Does it require EMI shielding? What temperature extremes will it be exposed to? Will the monitor be used in the U.S. only, or overseas? Do you need sound? Should you consider a sunlight LCD?
3. How will the monitor be used? Will you display only text and graphics, still photos or video? Video will require better resolution, 16.7 million colors, and good brightness and contrast specs. The LCD display must also be able to accommodate the specific type of video signal: VGA, S-Video, Component, Composite or HDMI, HD-SDI or DVI for full HD.
Image via WikipediaTouch screen monitors often simplify human interaction. In this case, how will the user activate the screen: finger, gloved hand, pen, stylus? This will dictate whether a capacitive, resistive, SAW or IR type touch screen is best.
As you can see, there is a myriad of factors to consider when choosing your LCD displays. Contact a monitor expert to ensure it meets all of your current and future needs.
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