| 摘要 |
Disclosed is a sparse-lamp infrared multi-point touchscreen, characterized by being mainly composed of structures such as a power source (5), a touchscreen (1), a microprocessor unit (MCU) (6) connected to the touchscreen (1) and a USB interface, an LDO circuit module (7), an infrared transmission unit (2), an infrared receiving unit (3) and an amplification unit (4) which are connected to the microprocessor unit (MPU) (6). Also disclosed at the same time is an implementation method for the sparse-lamp infrared multipoint touchscreen, characterized by mainly comprising steps such as (1) forming an X-axis left optical scanning network and an X-axis right optical scanning network on a touchscreen, so as to acquire an approximate touch point of a touch object. By means of the present invention, the accurate positions of two or more touch points can be confirmed simultaneously, thereby thoroughly overcoming the defect that multi-point touch positions cannot be positioned in a traditional touch screen. |
