Display Technologies and Video Systems Flashcards

What is the native resolution of a 4K UHD display?

Answer: 3840 x 2160 pixels

4K UHD (Ultra High Definition) has a native resolution of 3840 x 2160 pixels, which is four times the pixel count of 1080p Full HD.

What does EDID stand for in display technology?

Answer: Extended Display Identification Data

EDID (Extended Display Identification Data) is a metadata standard that a display communicates to a source device to describe its capabilities, including supported resolutions and refresh rates.

What is the throw ratio of a projector?

Answer: The ratio of projection distance to image width

Throw ratio is calculated by dividing the projection distance by the image width; a lower throw ratio means the projector can produce a larger image from a shorter distance.

Which display technology uses self-emitting pixels that do not require a separate backlight?

Answer: OLED

OLED (Organic Light-Emitting Diode) displays use organic compounds that emit light individually per pixel, eliminating the need for a backlight and enabling true blacks.

What is the standard aspect ratio for a widescreen HDTV display?

Answer: 16:9

16:9 is the standard aspect ratio for HDTV and modern consumer displays, adopted as the broadcast standard for high-definition television.

What unit is used to measure the light output of a projector?

Answer: ANSI lumens

ANSI lumens is the standardized measurement used to rate the light output of projectors, based on a nine-point average brightness measurement across the projected image.

What is the purpose of High Dynamic Range (HDR) in display technology?

Answer: To extend the range between the brightest and darkest parts of an image

HDR (High Dynamic Range) extends the luminance range a display can show, producing brighter highlights and deeper shadows simultaneously for a more realistic image.