2D keystone correction enhances installation flexibility by correcting the trapezoid effect via horizontal and vertical adjustments up to ±30 degrees. With it, the projector can be placed off center and the presenter can stand in front of the screen without blocking the image. The projector can also be placed anywhere on a u-shaped tabletop without moving the table or putting a stand in the center.
Corner fit is a flexible and convenient way to align the picture perfectly by adjusting each corner of an image independently.
With MHL, you can present your business proposals and share your ideas instantly using your Android smart device. Turn small screen into big screen by mirroring documents, photos, videos and any other content in your smart device onto the projection screen. Once connected to the projector, the smart device will be electrically charged so you don’t run out of battery power while presenting.
As the first DLP brand to incorporate Philips' ImageCare technology into its projector lamp system, BenQ has taken a further leap, developing its own SmartEco Technology to perfect what DLP can do for energy saving in the 21st century classroom. Built with this brand new invention, the MH684 brings together uncompromised brightness, exquisite picture quality and optimized lamp life through innovative features.
The Eco Blank mode allows teachers to blank the projection screen whenever they need to direct their students' focus back on them – or simply when the projector is not in use. When activated, this special feature dims the lamp power automatically, lowering the total power consumption by 70%.
The SmartEco Mode, which cleverly adjusts the lamp power to maximize power saving by delivering the best contrast and brightness performance using only as much light as needed.
Source:2010 Philips white paper
The automatic switch to Eco Blank Mode after the projector is turned on for over three minutes without a display source, eliminating unnecessary energy waste and prolonging the life of the projector lamp.
When inactive, the MH684 keeps power consumption to a minimum with <0.5W standby power, achieving what was once a challenge for earlier projector models. This technological advancement in energy saving helps lower energy costs.
The MH684 comes with enhanced audio support for your classroom, delivering crisp-clear audio performance with built-in 10W speaker power. Now, teachers can teach with ease and students can learn more effectively.
BenQ education projectors are standard-equipped with DLP Link™-supported 3D projection to offer students the same amazing 3D effects seen in 3D movies. The 3D formats supported by the MH684 are 3D field-sequential, 3D frame packing, 3D top-and-bottom and 3D side-by-side. Furthermore, this incredible projector can be connected to a Blu-ray DVD player for even more stunning visual quality.
Display subtitles in video content without the need for an external closed-captioning device with the MH684. It's perfect for viewing in educational settings such as language classes where a transcript of onscreen dialog is desirable.
To make your teaching job easier, BenQ has added the teaching template function to the MH684. Now, with three different line pattern designs to choose from – Letter Formation, Worksheet and Coordinate Chart, you can easily write or draw on whiteboards as well as blackboards without the need of drawing lines or charts.
Digital Light Processing (DLP), awarded 2015 Academy Award of Merit (Oscar® statuette), is the leading projection technology used in 90% of world’s digital cinemas and 100% of IMAX theaters. With DLP dominating the worldwide projector market with over 50% share, BenQ is today the #1 bestselling DLP projector brand, delivering unmatched world-class performance.
The incredibly durable micro-mirrors of the DLP chip and the nearly-sealed DLP engine design mean that BenQ DLP Projectors stand the test of time without any loss in picture quality. Eliminating dust buildup and heat damage, BenQ projectors shine year after year and look as good as new with a simple lamp change.
Critically acclaimed for industry-leading high contrast, BenQ DLP Projectors also produce the most crisply defined sharpness for crystal-clear details and legible text by maximizing the fill ratio of individual pixels and employing exclusive BenQ SmartEco™ Technology.