The working principle of notebook touch board and matters needing attention

The English name of the notebook touchpad is called Touchpad, which is an input device for moving a cursor on a smooth trackpad, using the sliding operation of the fingers. Can make beginners easy to use. Because the touchpad's thickness is very thin. So it can be designed in a very thin notebook computer, or a keyboard. And it's not a mechanical design. It is very easy to maintain. Its working principle is simply that, when the user's fingers close to the touchpad will change the capacitance, the Touchpad's own control IC will detect the capacitor changes in the amount of conversion to coordinates. The touchpad is a capacitive sensor to learn about the movement of the fingers and is insensitive to finger heat. When the finger touches the plate surface, the electrostatic field on the board will change. The touchpad sensor is just a finger track conduction line printed on the surface of the board.

To make the best use of the touchpad, use the following tips

1. To move the cursor, gently move the finger in the smooth sensing area;

2. To select the object, please tap the surface of the touchpad lightly once;

3. To select and move (or drag) an object, position the cursor over the object, and then tap the Touchpad two times in a row. When tapping the touchpad for the second time, place the finger on the touchpad and slide on the surface to move the selected object;

4. To double-click an object, position the cursor over the object, and then tap two times.

The advantage of touchpad is that it can customize the size of its area, size can be determined according to the manufacturer's orders, and its use of a wide range of built-in, ultra-thin notebook can be applied, and less power consumption, sleep mode on average only depleting 600μa (PS2 mode), and can provide handwriting input function (option); 　　Because it is no mobile machine component, it can be used to ensure durability and reliability; its low cost has become a high value-added directional solution, it has a lightweight and smooth pointing device, and provides full functionality of the driver software. Because the touchpad is a pressure-sensitive device, the touchpad can be easily damaged if it is not protected.

The following points must be noted when using the touchpad

1. Do not let the touchpad be contaminated with dust, liquid or grease;

2. Wash hands before using the touchpad, and do not touch the touchpad if your fingers are not clean;

3. Do not press the weight on the touchpad or other buttons;

4. Please make sure that your hand does not have too much sweat or moisture, because excessive humidity will cause the indicator device to short-circuit. Please keep the surface of the touch board clean and dry;

5. When you type or use the touchpad, do not lean your hand or wrist on the touchpad. Because the touchpad can sense any movement of the fingertips, if you put your hand on the touchpad, it will cause the touchpad to react poorly or move slowly;

6. Use only one finger to operate, many fingers at the same time will allow the touchpad to generate confusion information.