IR touch frame is a kind of equipment unit,which is used to achieve touch interaction.Its working principle and characteristics are as follows:

• A circuit board is installed around the screen,and the board is arranged with infrared transmitting tubes and infrared receiving tubes.These transmitting tubes and receiving tubes correspond one by one to form a horizontal and vertical cross infrared matrix.
• When nothing touch screen,the infrared way received by the infrared emitting tube can be normally received by the corresponding infrared receiving tube.However,when objects such as finger or other opaque object touch screen,it will block the two infrared ways though this position.Interactive control system will detect changes of lights though analysis and calculation of this light changes to confirm touch points ‘s position on the screen to achieve responds of touch operation.

• fast response time.IR touch screen frame can quickly detect and respond to the touch action.And the touch response speed can be as fast as 1ms.
• Multi touch. infrared touch screen overlay support multi touch.The usual 10 points of simultaneous  touch.
• Well adapted.It isn’t affected by current, voltage and electrostatic interference that has strong resistance to light and can work stably in all kinds of environmental conditions.It is suitable for  a variety of scenarios.
• Better durability. It has long use time.
• Price advantage:Compared with some other touch technologies, such as large-size capacitive touch, infrared touch frame has a relatively low cost and certain advantages in price, so it is widely used.

3.Application scenarios:

• Education area:It can use for electronic whiteboard,interactive teaching device in teaching.It can not only display lively textbook content,but also facilitate direct operation and interactive interaction between teacher and student to improve teaching quality.
• Business area:In shopping hall,hotel,exhibitions and other occasions of advertising display,information query equipment application,can display product information and guide guest to improve sales efficiency.
• Field of presentation:It is used for display equipment in exhibition halls, museums, science museums and other places to display history imagine,culture heritage, scientific experiments and other contents through touch interaction to enhance audience’s sense of participation and experience.