A touch screen is a computer display screen that is also an input device. The screens are sensitive to pressure; a user interacts with the computer by touching pictures or words on the screen.
There are three types of touch screen technology:
A resistive touch screen panel is coated with a thin metallic electrically conductive and resistive layer that causes a change in the electrical current which is registered as a touch event and sent to the controller for processing. Resistive touch screen panels are generally more affordable but offer only 75% clarity and the layer can be damaged by sharp objects. Resistive touch screen panels are not affected by outside elements such as dust or water.
Surface wave technology uses ultrasonic waves that pass over the touch screen panel. When the panel is touched, a portion of the wave is absorbed. This change in the ultrasonic waves registers the position of the touch event and sends this information to the controller for processing. Surface wave touch screen panels are the most advanced of the three types, but they can be damaged by outside elements.
A capacitive touch screen panel is coated with a material that stores electrical charges. When the panel is touched, a small amount of charge is drawn to the point of contact. Circuits located at each corner of the panel measure the charge and send the information to the controller for processing. Capacitive touch screen panels must be touched with a finger unlike resistive and surface wave panels that can use fingers and stylus. Capacitive touch screens are not affected by outside elements and have high clarity.
Yes, Lenovo is one of the pioneers to make touch screen laptop. The famous touch screen laptop segment is called YOGA and are also 2 in 1 laptop with hinges that can rotate upto 360 degree. Thus the YOGA series laptops are convertible and works as both a laptop and a tablet pc. There are four different postures that an YOGA series laptop can achieve and they are:
Apart from the YOGA series, Lenovo also makes touch screen laptop in other segments such as IdeaPad series and ThinkPad series in limited editions. Such as IdeaPad 3 (slim 3) touch, IdeaPad c340, IdeaPad Flex 5, IdeaPad Flex 6, ThinkPad X1 Carbon touch + 360 degree, etc.
Let us name some of the touch screen laptops made by Lenovo:
|Lenovo Touch Screen Laptops Price List | January 2022|
|S.N||Laptop model name||MRP in NPR|
|1||Lenovo IdeaPad IP c340 Intel i5 10th gen|8GB RAM|256GB SSD|14 inch FHD touch|2GB Gfx|Win 10||रु 131,000.00|
|2||Lenovo YOGA 7i Intel i7 10th gen|16GB RAM|1TB SSD|14 inch FHD touch|Win 10||रु 134,000.00|
|3||Lenovo IdeaPad Flex 5 Intel i5 11th gen|8GB RAM|512GB SSD|14inch FHD touch|Win 10|MS Office||रु 217,001.00|