All-in-one infrared remote controller with only three keys and operation method thereof

The invention relates to an all-in-one infrared remote controller with only three keys and an operation method thereof. The remote controller consists of a liquid crystal display part, a processor and storage part, a key input part and an infrared receiving and transmitting part. By learning and storing control codes of other remote controller in the all-in-one infrared remote controller in a study way, a plurality of pieces of infrared remote control equipment are controlled only by matching the three keys with display of a liquid crystal picture. As only three keys are configured, the all-in-one infrared remote controller provided by the invention is very simple in operation. Compared with the traditional remote controller, the all-in-one infrared remote controller has the characteristic of convenience for operation.