2013, XY SCREEN projection screen set up production plants in mainland China screen - Guangzhou-Yun audio-visual equipment definition projection screen size, the base set up in Guangzhou City, Guangdong Province, put into product categories are screen frame, curved screen frame , electric screen, folding screen, easy screen, large-scale projects of electric and projector hanger; curtain material comprises acoustically transparent screen, 3D acoustically transparent screen, metal screen, high-definition soft screen, high-definition glass screen and so on. The company's main product projection screen, projector screen is mainly used in home theater, office culture, education, etc., welcome customers to consult. Perspective we know that reflection projection screen in all directions are different, farther away from the center of the screen, the lower the brightness; when the viewing angle luminance was reduced to 50%, we define it as perspective. Viewed in the perspective of the image, display the image brightness must be satisfactory; in addition to viewing angle projection, the projection brightness will be very low. In general, the greater the gain screen viewing angle is smaller; the smaller the gain, the perspective will be greater, the latter characteristic white plastic screen. So, the higher number of occasions show high-definition projection screen, we can use small gain white plastic screen, so you can play a wider viewing angle effect. 2013, XY SCREEN projection screen set up production plants in mainland China screen - Guangzhou-Yun audio-visual equipment, base set up in Guangzhou City, Guangdong Province, the price of high-definition projection screen, put into product categories are screen frame, curved screen frame , electric screen, folding screen, easy screen, large-scale projects of electric and projector hanger; curtain material comprises acoustically transparent screen, 3D acoustically transparent screen, metal screen, high-definition soft screen, high-definition glass screen and so on. The company's main product projection screen, projector screen is mainly used in home theater, office culture, education, etc., welcome customers to consult. Symptoms: In the event of a power cable to ensure the projector, data and signal cables are connected correctly, the projector's lamp and fan are working properly, but not out of the computer screen projection, the projection screen display or sometimes incomplete. Reason: Because the projector lamp and cooling fan can function and rule out the possibility of malfunction of the projector, and the computer can be used normally 4K high-definition projection screen and, therefore, rule out the possibility of a computer malfunction. So, where the problem might be on the signal cable or the projector and computer set up. Solution: Most projectors user is using a laptop computer connected to it, then there is no projection may be laptop external video port is not activated due to, then simply hold down the Fn key laptop, then press identified as the corresponding function key LCD / CRT or display icons, such as the F7 key to switch to Hangzhou high-definition projection screen, 4K high-definition projection screen, audio-visual equipment male cloud (certified merchants) are provided by Guangzhou-Yun audio-visual equipment. Guangzhou-Yun audio-visual equipment (www.xy-screen.com) is specialized in "projection screen, high-definition projection screen, electric screen, frame screen, home theater projection screen" of the enterprise, the company adhering to the "honesty, hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Mr. Xie.