3.1 - CompTIA A+ Core 1

These flashcards cover key concepts and definitions related to LCD and display technologies discussed in the lecture.

Liquid Crystal Display (LCD)

A technology used in screens that relies on liquid crystals and an LED backlight to produce images.

Twisted Nematic (TN) LCD

LCD sub-type known for fast response times but poor viewing angles.

In-Plane Switching (IPS) LCD

LCD sub-type, offers better color representation than TN LCDs, but slower viewing times.

Vertical alignment (VA) LCD

LCD sub-type that provides a balance between color representation and response times.

Organic Light Emitting Diode (OLED)

A display technology that emits light directly via bioluminescent chemicals, resulting in thinner screens.

Cold Cathode Fluorescent Lamp (CCFL)

A type of backlight for older LCDs that requires more power than modern LED lights.

Light-emitting diode (LED)

Backlight type used in modern displays - more power-efficient and thinner than CCFL.

Inverter

A component used in older laptops to convert DC power from the battery to AC power for CCFL backlights.

Digitizer

A device that converts analog signals, like touch or stylus input, into digital signals for a display.

Webcam

A small video camera integrated into laptops, used for video capture and online meetings.

Pixel density

Refers to the concentration of pixels in a display, commonly measured in pixels per inch (PPI), which impacts image clarity.

Refresh rates

The frequency at which a display updates its image per second, typically measured in hertz (Hz), affecting smoothness and responsiveness in video and gaming.

Screen resolution

The number of pixels displayed on the screen, defined by the width and height of the display, affecting image detail and clarity.

Color gamut

The range of colors that a display can reproduce, often measured against standard color spaces like sRGB or Adobe RGB, impacting overall color accuracy.