LCD - Alphanumeric
LCD designs can vary depending on the desired application. Display format, resolution, response time, and contrast are all features that can vary depending on the desired use. On a LCD , information is generally displayed in segments or pixels. Segments are regions that can be arranged into different shapes. The most common segment configuration is the seven- segment display shown below. This format is commonly used in calculators, watches and other simple numerical displays. The LCD screen is more energy-efficient and can be disposed of more safely. Its low electrical power consumption enables it to be used in battery-powered electronic equipment.
There are many different types of character display modules available and choosing the right one will depend on the device in question. Alphanumeric LCD screens are the ideal option for projects that require a simple, non-graphical user interface. Since they offer basic functionality, they also require less electricity than more complicated display modules, and they are also a more affordable option.
To choose the right alphanumeric LCD display module one thing to consider is the technology used in the display - there are a number of different options available, including TN, HTN, STN and FSTN. These differ mainly in their speed, clarity and contrast. Another option to think about is the backlighting. RGB LED backlights, which provide a clear, white light, can also be programmed to display other colours as appropriate. Transflective, reflective and transmissive modules are both available as industry standard displays, and one can also choose from different character display modes. Of course, the size of the display is also something to think about. When measuring, one should try to ensure that the screen will comfortably fit within the device, while still being large enough to read and operate effectively.
Small LCD screens are common in portable consumer devices such as digital cameras, watches, calculators, and mobile telephones, including smartphones. LCD screens are also used in consumer electronics products such as DVD players, video game devices and clocks. LCD screens are available in a wider range of screen sizes, with LCD screens available in sizes ranging from tiny digital watches to huge, big-screen television sets.
Return to main Display Technology page