Chapter 17 - Display Technologies

Question 1

What is a Pixel?

Answer 1

a picture element, with the colors red, blue, and green light.

Question 2

Each element of a pixel is what?

Answer 2

Liquid Crystal Display (LCD)

Question 3

CCFL stand for?

Answer 3

Cold Cathode Fluorescent Lamp which was replaced by LEDs. CCFL screens need inverters.

Question 4

LEDs stand for?

Answer 4

Light-emitting diodes

Question 5

Nit measures what?

Answer 5

Nit is a measure of light.

Question 6

what is OLED?

Answer 6

Organic LED instead of diodes OLED uses light-emitting lightbulbs. Most smart phones have OLED screens.

Question 7

What is DLP?

Answer 7

Digital Light Processing. A grid of mirrors. Most common in projectors not really used on monitors.

Question 8

Resolution is what?

Answer 8

Total number of pixels across and down.

Question 9

What does GPU stand for?

Answer 9

Graphics Processing Unit, aka - video/graphics card. Today’s Video cards come with RAM.

Question 10

Dominant Names for video cards

Answer 10

Nvidia and ATI/AMD are the dominant names. But Intel also makes video cards.

Question 11

What is Integrated GPU?

Answer 11

Motherboard(s) are have built-in GPUs.

Question 12

APU is what?

Answer 12

CPU + GPU = APU.

Question 13

DVI-I is what?

Answer 13

Digital and Analog, and is usually white. again port for monitors. Has the plus sign ( + ) on the left.

Question 14

DVI-D

Answer 14

Is Digital Only. Port for monitors. Has just the dash on the right ( - ).

Question 15

DVI-I and DVI-D come in what?

Answer 15

Both single and dual link.

Question 16

What does DRM stand for?

Answer 16

Digital Rights Management.

Question 17

Riser Card

Answer 17

Allows you to plug in more video cards.

Question 18

Projectors use what Technology?

Answer 18

DLP and LCD.

Question 19

Projectors use what Technology?

Answer 19

DLP and LCD.

Question 20

Lumens

Answer 20

Measurement of Brightness.

Question 21

Projectors have geometric adjustments in what shapes?

Answer 21

Pincushion, Keystone, Skew

Question 22

Overheat Shutdown

Answer 22

Video card is too hot. Bad video card fans, or video card not getting enough air flow/ventilation.

Question 23

Dead Pixels

Answer 23

Bad monitor, get a new monitor

Question 24

Artifacts

Answer 24

Video RAM. Get a new Video Card.

Question 25

Incorrect Color Patterns

Answer 25

Check your cable, Video RAM.

Question 26

DIM image

Answer 26

Issue on CCFL monitors, Replace CCFLs. Or turn the brightness up.

Question 27

Flickering Image

Answer 27

Check your cables.

Question 28

Distorted Image

Answer 28

Run at native resolution, adjusting geometry

Question 29

Burn In or Image Persistence

Answer 29

Hardly happens anymore only on Plasma monitors. Fixed image on the image on the screen too long.

Question 30

Oversized Images and Icons

Answer 30

adjust text and image sizing.