As the smartphone universe has grown, so too have the range of display components inside different mobile devices, and these ultimately define how digital information is viewed on a given device. With this in mind, it is important to understand the differences between display components of mobile devices, as this understanding helps prepare for the CompTIA A+ Core 1 (220-1101) exam, which covers a range of topics related to mobile device repair. In this article, we’ll review the major components of a mobile device display, compare and contrast the differences between them, and discuss how best to prepare for the CompTIA A+ Core 1 (220-1101) exam.
When preparing for the CompTIA A+ Core 1 (220-1101) exam, it’s important to understand the different display components that mobile devices rely on. The following components are some of the most important aspects of any given device’s display:
- Panel type
- Pixel density
- Display size
Panel type refers to the actual physical material used to make the display itself. The two most common panel types for mobile displays are LCD (liquid crystal display) and OLED (organic light-emitting diode). LCDs use a combination of liquid crystals, backlighting, and filters to display images, while OLEDs are made of organic material that produces its own light. While both types of displays are found in today’s mobile devices, OLEDs generally offer a more vibrant, accurate display.
Resolution is one of the most important aspects of any display, as it defines the clarity of the images shown on the screen. Resolution is measured in pixels, and the higher the resolution, the higher the clarity of the display. For example, Full HD resolution (1920 x 1080) will provide much better clarity than HD resolution (1280 x 720).
Pixel density is a measure of the number of pixels that can fit into a certain area, usually given in pixels per inch or PPI. Generally speaking, the higher the pixel density, the higher the clarity and quality of the display. Common pixel densities for mobile devices range from 200 to 500+ PPI.
Display size is perhaps the most obvious differentiator between mobile devices, and it is measured in inches diagonally across the screen. Larger displays can be more enjoyable to use, as they provide more real estate for viewing multiple windows or webpages. However, larger displays also consume more battery life and may require larger device bodies.
By understanding the various display components that form the backbone of any mobile device, you’ll be better prepared to tackle the CompTIA A+ Core 1 exam. At AlphaPrep, we provide the best online learning resources to help you ace the CompTIA A+ Core 1 (220-1101) exam. Our all-in-one course bundle covers a wide range of topics related to mobile device repair, making it the perfect course for anyone looking to ace the CompTIA A+ Core 1 (220-1101) exam.
Ultimately, the display components of mobile devices can set the tone for the user experience. By understanding the differences between panel types, resolution, pixel density, and display size, you’ll be better equipped to pass the CompTIA A+ Core 1 (220-1101) exam. With the variety of online learning resources offered at AlphaPrep, you’ll have the knowledge and confidence to ace the exam and become a certified technician.