Study Shows: Home Premium TVs Preferred 55"

    Study Shows: Home Premium TVs Preferred 55" A few days ago, the Consumer Electronics Survey Office of the China Electronic Chamber of Commerce released the "Research on the Screen Size and Viewing Distance of Color TVs" at the United Nations Radio and TV Products Quality Supervision and Inspection Center. The results show that since the era of flat-panel TVs, the choice of viewing distance and TV size has always influenced consumer purchasing decisions. For the purchase of high-definition television (HD), the International Radio Consultative Committee has previously recommended the relevant reference: the best viewing distance is 3 times the height of the color TV screen. For a long time, the home appliance store shopping guide is also based on this criteria to recommend to consumers. However, when flat-panel TVs are upgraded to full HD (FHD), the screen resolution is higher, the image display is more delicate, and the relationship between the optimal viewing distance and the TV screen size also changes.

    Recently, the National Radio and TV Product Quality Supervision and Inspection Center, the Consumer Electronics Product Survey Office of the China Electronic Chamber of Commerce, and mainstream TV manufacturers, such as Skyworth, have targeted mainstream Full HD TVs in the market according to the limits of human vision, flat panel TV screens, and home viewing environments. Dimensions have been related to the research and the results show that: In general, home-purchased full-HDTVs are ideal for watching 55-inch images without the need for full-HD image information.

    USB 2.0 Hubs

    USB 2.0 is a USB interface standard released in 2000 with a theoretical maximum transmission speed of 480Mbps (about 60MB/s). The port has four cables (five cables for MicroUSB and MiniUSB), and the maximum output current is 0.5A. USB 2.0 is currently the most common version of USB port, almost all computers have USB 2.0 port, most USB devices also support USB 2.0. USB 2.0 hub. The device can provide USB high speed or full speed connection on the uplink port. The device also provides USB high-speed, full-speed, or low-speed connections on the downlink port. When the uplink port is connected to an electrical environment that supports only high-speed, full-speed, and low-speed connections, the high-speed, full-speed, and low-speed USB connections on the downlink port are enabled. When the uplink port is connected to an electrical environment that supports only full or low speed connections, the USB high-speed connection on the downlink port is disabled. USB 3.0 Hubs is higher than usb 2.0 in terms of transmitting data.



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    Usb 2.0 Hubs,7 Port Usb 2.0 Hub,Wireless Usb 2.0 Hub,Usb C To Usb 2.0 Hub

    Henan Yijiao Trading Co., Ltd , https://www.yjusbcable.com

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