What are the common LCD screens used in embedded systems?

In embedded systems, the most commonly used LCD screens are:

1. Alphanumeric LCD: These are the most basic type of LCD screens used in embedded systems. They can display numbers, alphabets, and a few special characters. They are available in different sizes like 8x1, 8x2, 16x1, 16x2, 20x4, etc.

2. Graphic LCD: These LCDs are used when the user interface requires the display of custom graphics, symbols, or fonts. They are available in different resolutions like 128x64, 128x128, 240x128, 320x240, etc.

3. TFT LCD: Thin Film Transistor (TFT) LCDs are a type of active-matrix LCD. They provide better image quality and can display more complex graphics compared to alphanumeric and graphic LCDs. They are commonly used in embedded systems that require a high-quality display like smartphones, tablets, etc.

4. OLED: Organic Light Emitting Diode (OLED) displays are a type of LED display that uses organic compounds to emit light. They provide better contrast and wider viewing angles compared to LCDs. They are commonly used in high-end smartphones and TVs.

5. e-Ink Display: These displays use electronic ink to create a display that looks like paper. They are commonly used in e-readers like the Amazon Kindle because they provide a reading experience similar to reading a physical book.

6. Touch Screen LCD: These are LCD screens that also have a touch-sensitive layer on top. They are commonly used in smartphones, tablets, and other devices that require a touch interface.