Laptop Displays–2

LCD stands for ____?

Liquid Crystal Display

LCD is...

a series of liquid crystals that associate with color filters, has a backlight or light source shines through to give an image.

What has advantage of being lightweight and use very little power, and are not expensive to make?

LCD's

What is a disadvantage of LCD's?

the light source in the back has to shine through to provide color, and because of that getting a true black can be difficult.

What true color is the hardest to get in an LCD?

A black screen.

Backlights on display can either be....

Fluorescent, LED, or another type of light.

It is difficult to repair ________ as its apart of the _______ itself.

Backlight , display

List the 3 types of LCD technologies.

TN LCD, VA LCD, & IPS LCD

What does TN LCD stand for?

Twisted Nematic LCD (Liquid Crystal Display)

What does IPS LCD stand for?

In plane switching LCD (Liquid Crystal Display)

VA LCD stands for........

Vertical Alignment LCD (Liquid crystal display)

What is the original LCD technology?

The twisted Nematic

TN LCD is best known for .....?

Fast response times

TN LCD has bad ......

viewing angles

What happens when you are not looking at a TN LCD directly?

The color shifts, means the screen is nearly black from the side.

IPS LCD gives good ____.

color representation.

TN LCD is good for ________ purposes.

gaming

IPS LCD is good for ...........

graphics or desktop publishing.

WHY is TN LCD slightly more expensive than TN LCD

Because of the color representation which TN LCD lacks.

VA LCD has good _______ and is a bit _______ than the _______.

color representation, slower, TN LCD

OLED stands for

Organic Light Emitting Diode

What doesn't have a backlight?

OLED

How does OLED work?

The organic material emits light when its provided with a current (power) .

What do LCD technologies have that OLED doesn't?

Liquid crystals

OLED does NOT need ________ for _______ and are VERY _______.

glass, protection, thin

What kind of display is on phones, tablets and smart devices?

OLED

The highest placed component in a system is ..........

the displays

True or false? wires are not precisely connected to the motherboard.

False

Placed at the for optimal signal reception... (there are two)

The antennas for 802.11 (wifi) and bluetooth

due to ______ and ______of ______ wires to the system board, replacing the display may be a challenging task.

video component, and connection of antenna

Why is 802.11 network placed at the top of the laptop ?

Because of the frequency it needs.

What two wires are placed near each other and are separate?

Wi-Fi and Webcam wires.

Webcam and Wi-Fi wires don't _____ but _______ __________.

interfere but work together

Webcam includes ________ and _________.

audio and video

video captures include __________ and ________

built in camera and microphone

True or false? Webcam is placed at the top and the holes next to it are microphones.

True

Because built in microphones have poor quality, you should.......

consider analog or USB microphones

What do LCDs need to shine through so the image is displayed

a backlight

older laptops use........

fluorescent lighting

CCFL is a type of _______ lighting

fluorescent

CCFL stands for ______

Cold Cathode Fluorescent Lamp

This requires higher voltage and power

CCFL

It's not common, but what does CCFL add to the display?

Thickness

What type of lighting do most of newer laptops use?

LED

When LCDs are referred to as LED displays but it really means....

LED backlit LCD

IS this right? Led is not a type of backlight for LCD displays

Led is a type of backlight for LCD displays

What does removing the front of the display do?

showcases the strips of LED lighting.

The display is smart enough to do what?

recognize what parts need to be lighter or darker and will adjust the lighting depending on what you are viewing.

CCFL includes an additional component called

Inverter

Laptop runs on _____ power

DC power

CCFL requires _______ power

AC power

What does an inverter do?

converts DC into AC power

Older laptops that include CCFLs need ?

an inverter

How to tell if the backlight has failed ?

shine a flashlight on the screen

If lighting fails, what can CCFL backlights do that LEDs can't?

You just replace the inverter to restore backlight, but you would need to replace the entire display for LEDs

Example of a Hybrid device?

tablets with a keyboard

Example of a digitizer?

stylus pen

What can a stylus pen do?

when it is pushed down on the screen converts into a digital signal in the display

the digitizer inside the __________ is what converts the analog input into ________ signals.

display, digital

A digitizer allows _____ through ________ screens

input, touch

It is [possible to use a _______, _________, or _______ all on the same system

keyboard, stylus, or key presses