Longsight Technology Industrial Co. Ltd. is composed by a team of high educated and experienced optics, electrics and managing people, engaging in the development and sales of projection and display equipment. Our products cover projector TV, projection screen, and projection lamp. Especially, the projection screen contained motorized screens, auto fixed wall screens, tripod screens, frame projection screens, portable table screens, portable floor screens and motorized window curtains, totally 7 series and up to thousands of models. Of course, OEM and ODM services are available.