Mobile Display Components
- for a mobile device, the display panel is only a single layer within the screen assembly
- Several other display components make up the whole screen
Digitizer Functions
- touch screen can also be referred to as a digitizer because of the way it converts analog touch input to digital software instructions
- sandwiched between a layer of protective glass and the display panel
- analog signals are detected by a grid of sensors when you tap or swipe the surface of the screen
- information from the sensors is sent through the digitizer cable to a circuit that converts the analog signal to a digital signal
- Modern mobile devices use capacitive digitizers
- support multitouch
- gestures such as “sweeping” or “pinching” the screen can be interpreted as events and responded to by software in a particular way
- Newer devices are also starting to provide haptic feedback making virtual key presses or gestures feel more real to the user
- touchscreen is covered by a thin layer of scratch-resistant, shock-resistant tempered glass
- such as Corning’s Gorilla Glass
Rotating and Removable Screens
- accelerometers and gyroscopes can detect when the device changes position and adjust the screen orientation appropriately
- can be used as a control mechanism
- E.g., a driving game could allow the tablet itself to function as a steering wheel
- Some laptops are based on tablet hybrid form factors
- touch screen can be flipped or rotated
- keyboard part of the laptop can be detached to turn into laptop