1.2 Given a scenario, install components within the display of a laptop
OLED Monitor
- organic LED display uses a layer of organic material that responds to electrical stimulus to emit light. This process allows each pixel to light individually, resulting in much deeper black levels than LED. OLED displays are also thinner and lighter than LED displays.
LCD monitor
A computer monitor that takes advantage of the polarizing properties of liquid crystals to produce images on a screen. Most LCD are TFTs.
Thin Film Transistor (TFT)
A technology for LCD displays in which transistors are positioned at each pixel.
Which monitor technology requires an inverter to convert DC back into AC? A) LED B) CCFL C) OLED
B) CCFL
LCD Disadvantages
Black Levels, Separate Backlight (Florescent, Led, Ect), Difficult to replace.
CCFL
Cold Cathode Fluorescent Lamp
OLED Disdvantages
Degrades over time, Decayed images can remain on screen, more costly and power hungry
What is a symptom of a worn out backlight?
Dimmer screen than before, or a reddish/ pinkish hue to the screen, or maybe a loss of color.
What is the cause of intermittent lines on the laptop screen?
Display cable needs to be reconnected or replaced
LED monitor
LCD monitor that uses LEDs instead of CCFL tubes for backlighting, creating much higher contrast ratios and image quality.
LCD Layers
Light Source -> Polarizing Filter -> Electrodes -> Liquid Crystal -> Electrodes -> Color Filter -> Polarizing Filter -> Display Surface
LCD Advantages
Lightweight, Low power, Inexpensive
Where is the laptops microphone located?
Near the Web camera, often apart of the webcam module.
How do you easly identify M.2 and Mini PCIe card?
One screw (for M.2) or two screws (for Mini PCIe).
OLED
Organic Light Emitting Diode
Which ways can a webcam be disabled?
Removed, disabled in the operating system, or via a function key.
OLED Advantages
Thin & lighter, no back light, good black levels
True or False? Digitizer overlays are available for laptops displays that are strapped onto the display and connect via USB?
True