VIVITEK DS NovoTouch BK750i silber 75”/3xHDMI/VGA/DP/USB

Size of the display for this product, measured diagonally, usually in inches.

Brightness is the amount of radiating light emitted from the screen. The brightness rating is measured in candellas per square meter, commonly known as 'nits'.

The number of distinct pixels in each dimension that can be displayed. It is usually quoted as width × height, with the units in pixels: for example, "1024 × 768" means the width is 1024 pixels and the height is 768 pixels. The higher the number of pixels, the sharper the image.

Type of supported High Definition (e.g. Full HD, 4K Ultra HD).

A backlight is a form of illumination used in liquid crystal displays (LCDs). One type of backlight is made by LEDs, which can be either white or RGB (red green blue). White LEDs are used most often in notebooks and desktop screens, and in virtually all mobile LCD screens. RGB LEDs for backlighting are found in high-end color proofing displays such as HP DreamColor LP2480zx monitor or selected HP EliteBook notebooks, as well as newer consumer grade displays such as Dell's Studio series laptops which have an optional RGB LED display.

Backlighting is the illumination of a screen e.g. LCD (liquid crystal display). There are several types of backlighting with LEDs, e.g. full array, edge lit.

The aspect ratio is the ratio of the width of an image to its height. The native aspect ratio is the one which the projector/display is particularly designed for. Images shown in native aspect ratio will utilize the entire resolution of the display and achieve maximum brightness. Images shown in other than native aspect ratio will always have less resolution and less brightness than images shown in native aspect ratio.

The difference in light intensity between the brightest white and the darkest black.

The response time is the time difference between the moment that a source (for example a video card) sends a signal and that equipment (for example a monitor) receives or display the signal. (Used abbreviations: R/F = Rise and Fall.)

A screen of a laptop, smartphone, etc., that responds to touch so you can control the interface using your fingers.

There are a variety of touchscreen technologies that have different methods of sensing touch, including resistive and capacitive.

Maximum horizontal angle at which a display can be viewed with acceptable visual performance.

Maximum vertical angle at which a display can be viewed with acceptable visual performance.

A measure of how solid/firm/rigid something is.

Type of operating system on a device e.g. IOS on Apple devices, Android for mobile devices.

The version of the operating system used e.g. 4.1, 4.2 for Android.

Whether or not a processor is built into the device.

The maximum internal memory which is available in the product.

The type of RAM (random access memory) inside the device e.g. DDR3.

The device contains speaker(s) to produce sound.

The device has an internal projector, to show images.

The resolution is the number of 'pixels' of the device. Pixels are the individual dots that make up the image on your computer. 'Native' resolution is the maximum number of pixels.

The length of time (usually measured in hours) which the lamp can be used for.

Popular technology that allows an electronic device to exchange data or connect to the internet wirelessly using radio waves.

Connection of this device is done via Wi-Fi in a high standard.

The type of wireless local area network (LAN). It can be ad-hoc, where units in a network communicate peer-to-peer, or Infrastructure, where units communicate with each other via an access point A LAN interconnects computers in a small area e.g. home, school or office.