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Май 17, 2018 от

By Sarah Dawson

#Interactive#projector vs interactive #display – which is better? This is a question many schools and education providers are asking when considering interactive technologies for the classroom.

Both devices have pros and cons, education providers must weigh up functionality, price, maintenance costs and the types of interactive learning that the devices will be used for. It can be tricky to decide whether a touch screen display or interactive projector is the best option, so let’s take a look first at the differences between the two.

What is an interactive projector?

An interactive projector is comprised of two parts; a whiteboard and projector which features a lens to project images. The projector is usually mounted to the ceiling or to the wall above the whiteboard and is the source of the content being displayed. The whiteboard acts as a plain screen to display the projected content.

Interactive projectors enable interaction by tracking movements, either by infrared or DLP technology.

Here’s how infrared works:

– A camera on the projector tracks the movement of an interactive pen

– The pen transmits infrared light to the camera when it makes contact with the whiteboard

– This movement is recorded and reflected in the projection itself

– Similar to how the movements of a wireless computer mouse are reflected on the PC screen.

Here’s how #DLP works:

– The projector emits patterns on top of the projected image

– Patterns occur quickly enough that they’re not detected by the human eye

– Interactive pen provided picks up on this pattern and relays it back to the projector

– Projector reflects the movements back to the whiteboard.

Some interactive projects enable wireless projecting by connecting remotely to laptops, PCs or tablets. Others require wired connections. Essentially, however, they simply project what is on the connected computer.

 

Cost of interactive projector vs interactive display

When comparing initial purchase costs of interactive touch screens vs interactive whiteboards and projectors, displays tend to be more expensive. For schools on a budget, this can be off-putting when assessing the affordability of interactive technology.

However, projectors tend to be far less reliable than interactive displays, which can make them more expensive to maintain. Bear in mind the following factors:

– Lamps will require periodic replacement

– Warranties of replacement lamps tend to be just a few months

– Quality of replacement lamps tend to be lower than that of original lamps, thus diminishing image quality

These factors tend to mean that overall costs of an interactive display vs whiteboard and an inte

ractive projector are around the same. Interactive displays require little to no maintenance since there are no parts that need frequent replacement.

It’s also vital to remember that the image quality of a projector will always diminish over time. Subsequently, while initial investment in the device was less than that of an interactive display, the investment does not stand the test of time in the same way.

For schools working to strict budgets, it makes sense to assess the longevity of technology to understand whether an investment is worthwhile. In the case of interactive projector vs interactive display, the display tends to be the more sensible investment despite the higher initial costs.

Interactive display vs whiteboard and interactive projector – which wins out?

For schools committed to improving interactive learning in the classroom, interactive display screens are certainly a wiser investment. Here’s why:

– Convenient, room-ready, and intuitive user interface

– Versatile functionality and compatibility with third-party hardware/software

– Crisp image quality

– Image quality does not degrade

– Bright display to minimise eye strain

– Silent operation (no fans)

– Minimal, low-cost maintenance.

 

Original https://www.avocor.com/blog/interactive-projector-...

Опубликовано: Экспертиза