9G4 Output Devices

Images are produced when an electron beam strikes a phosphorescent surface of the specialized vacuum tube.

• CRT

• LED

• LCD

• OLED

It is a type of flat-panel display that uses the light modulating properties of crystals combined with polarizers, a back-light or reflector is used to produce monochrome or color images on the screen.

• LCD

• LED

• CRT

• OLED

Modern LCD monitors are back lit using LED (Light Emitting Diode) technology which gives better contrast and brightness.

• True

• False

LCD monitors used cold cathode fluorescent lamp (CCFL), that is essentially 2 fluorescent lamps behind the LCD screens which supplies the light source, prior to using LEDs.

• TRUE

• FALSE

LCD monitors used cold circle flask lamp (CCFL), that is essentially 2 fluorescent lamps behind the LCD screens which supplies the light source, prior to using LEDs.

• TRUE

• FALSE

OLED monitors used cold cathode fluorescent lamp (CCFL), that is essentially 2 fluorescent lamps behind the LCD screens which supplies the light source, prior to using LEDs.

• TRUE

• FALSE

CCFL stands for ___________________

The only difference on this projector to other is the ______. Rather than use a traditional projector bulb, these projectors use a combination of red, green, and blue LED’s.

• bulb

• mechanism

• light

• RGB

Is part of older technologies that uses high intensity beams of light that passes through an LCD display and then onto a screen.

• LED

• LCD

• OLED

• CCFL

LED stands for