| 摘要 |
An optical touch system includes an infrared touch pen, a display panel, an image sensor, a time recorder, and a processor. The infrared touch pen is used for touching the display panel and can emit an infrared beam. The image sensor is configured to receive the infrared beam emitted by the infrared touch pen. The time recorder is configured for reordering a first time at which the infrared touch pen emits the infrared beam and a second time at which the image sensor receives the infrared emission. The processor connects with the image sensor and the time recorder and is configured for computing a distance between the touch of the infrared touch pen and the image sensor and the coordinates of the infrared touch pen.
|
