These three brands are considered the three mainstream brands in China. DLP’s optical machinery is widely used in the large-screen market. It is also the only domestic manufacturer with an optical machinery production base, so it is known as the most cost-effective. Products; Witron is a company that only makes large screens. Its strength is not the same as that of Zhongda Dentsu. However, in terms of marketing, Witron is much more powerful than Zhongda and GQY, but Weitron does not have its own lighting. Therefore, the machine production base is relatively expensive; GQY is the weakest among the three. Most of the optical machines are made by Zhongda Dentsu, and the price is similar to that of Zhongda Dentsu in all aspects. Since these three are the most powerful domestic large-screen splicing manufacturers, they have also developed LCD products in response to the development of the situation. However, since the panels are basically all from Samsung, there is no difference in performance in all aspects, and price is crucial. factors. To divide.