Choose and buy TV to want to see size size, the TV size that general sitting room places can be bigger, and the TV size that bedroom places can be smaller. In addition, we also need to see the visibility. At present, TV on the market can be divided into curved screen and non curved screen. Curved screen TV has high visibility and strong sense of technology, but it is expensive, while non curved screen TV is relatively cheap.
根据观看人群的年龄和需求来决定。电视机根据清晰度可以分为普通、准高清、高清、4K 等几个档次，只要对清晰度不是很严格要求的话，像看闭路电视啊，准高清、高清就可以了，4K 虽然清晰度高，是一种享受，但是片源少，实际利用率不高。步骤阅读 4 电视机参数大小。要根据电视机的要求来选择。
It depends on the age and needs of the audience. According to the definition, TV sets can be divided into ordinary, quasi HD, HD, 4K and other grades. As long as the definition is not very strict, such as watching closed-circuit TV, quasi HD and HD are OK. Although 4K has high definition and is a kind of enjoyment, there are few film sources and the actual utilization rate is not high. Step 4 read the TV parameter size. Choose according to the requirements of the TV.
如果用机顶盒看电视，对参数不做过多要求，只要清晰度够好，画质够鲜艳就成，因为这时候的电视机只是显示功能，大部分的信号处理工作都有机顶盒来负担，如果没有机顶盒选购智能电视机就要考虑电视机的 cpu 处理能力、闪存大小等参数，参数越高，代表电视机性能越强，当然价格也会更高。
If you use a set-top box to watch TV, you don’t need too many parameters. As long as the definition is good enough and the picture quality is bright enough, because at this time, the TV is just a display function, and most of the signal processing work is borne by the set-top box. If you don’t have a set-top box to buy a smart TV, you have to consider the CPU processing power, flash size and other parameters of the TV, and the higher the parameters are, The stronger the performance of the TV, the higher the price.
Mainstream TV in current market
电视可以从使用效果和外形来粗分为 3 大类：平板电视（LED 电视、智能电视、液晶电视、云电视、4K 电视、3D 电视）；CRT 显像管电视-已经淘汰；背投电视-已经淘汰。
TV can be roughly divided into three categories: flat panel TV (LED TV, smart TV, LCD TV, cloud TV, 4K TV, 3D TV); CRT tube TV – has been eliminated; Rear projection TV – has been eliminated.
LED 液晶电视：目前市售主流产品均为 LED 液晶电视。它以 LED（发光二极管）为背光源，画面更细腻，更节能，也能让电视做得更薄。
LED LCD TV: at present, the mainstream products on the market are LED LCD TV. It uses LED (light emitting diode) as the backlight, which makes the picture more delicate, more energy-saving, and also makes the TV thinner.
Smart TV: like smart phones, it has an open platform, equipped with an operating system, and can be installed and uninstalled by users themselves. Programs provided by third-party service providers, such as software and games, can continuously expand the functions of color TV through such programs, and can surf the Internet through wired or wireless networks.
4K 电视：4K 是一种显示技术的国际标准，对电视机来说屏幕分辨率必须达到 3840×2160。4K 的清晰度正好是传统 1080p 全高清的 4 倍，所以又被称为超高清或者 UHD。
4K TV: 4K is an international standard of display technology. For TV, the screen resolution must reach 3840 × 2160。 The definition of 4K is just four times that of traditional 1080p Full HD, so it is also called Ultra HD or UHD.
3D 电视：3D 视频影像源，独立送入人的左右眼来产生立体效果，与需要戴累赘的 3D 眼镜相比，裸眼就可以看到 3D 画面无疑更具吸引力，反响甚微，不能算是常规消费产品。
3D TV: 3D video source, independent into people’s left and right eyes to produce three-dimensional effect, compared with the need to wear cumbersome 3D glasses, naked eyes can see 3D picture is undoubtedly more attractive, little response, can not be regarded as a conventional consumer product.
Cloud TV: is the application of cloud computing, cloud storage technology of TV products, is a kind of cloud equipment. Generally speaking, users don’t need to equip their TV with all Internet functions or content. For example, they can install and use various instant messaging software in cloud TV to socialize and work while watching TV.
TV purchase skills
1. Look at the size
客厅：46 寸到 50 寸之间的电视尺寸适应力比较强。
Living room: the TV size between 46 inch and 50 inch is more adaptable.
卧室：39 寸/32 寸这两个尺寸可都是黄金尺寸。
Bedroom: 39 “and 32” are both gold sizes.
2. Look at the distance
It’s just a guiding distance. Everyone’s preferences and eyesight are different. You can adjust them according to your own situation. In addition, the screen ratio of LCD TV is generally 16:9, which is the most suitable format for human visual angle and has stronger visual impact.
3. Look at the resolution
如今平板电视的分辨率主要有 1920×1080、1080p、3840×2160 购买者要视乎日常使用需要而选择分辨率。目前来看，720P、1080P 就已经足够；如果是影院发烧友，看看 4K 也没压力。
Nowadays, the resolution of flat panel TV is 1920 × 1080、1080p、3840 × 2160 buyers should choose the resolution according to their daily needs. At present, 720p and 1080p are enough; If you are a movie enthusiast, there is no pressure to look at 4K.
4. Look at the interface
电视机的接口一般都有 USB、HDMI、音视频接口、网络接口、VGA 接口、SD 卡槽等，这些接口中，咱们需要留意的是 USB 接口和 HDMI 接口。目前，高端平板电视会带有 USB3.0 接口（蓝色）和 HDMI/HML 接口。拥有它们的电视，在解码方面和传输方面都要快的多。
The interface of TV generally includes USB, HDMI, audio and video interface, network interface, VGA interface, SD card slot, etc. among these interfaces, we need to pay attention to USB interface and HDMI interface. Currently, high-end flat-panel TVs will come with USB3.0 (blue) and HDMI / HML interfaces. The TV with them is much faster in decoding and transmission.
5. Look at the brand
In today’s era of online shopping, we also need to refer to logistics, door-to-door installation and other services. No matter what brand we choose, the one that suits us is the best.
电视显示器发展：模拟电视（CRT 显像管电视-已经淘汰）；数字标清电视；HD 高清电视；FHD 全高清电视；UHD 超高清电视。可以说电视机的显示器更新换代，代表了电视发展的主流，如今电视的作用不仅仅用于影像功能，更融入了其他智能化功能。
TV display development: analog TV (CRT tube TV – has been eliminated); Digital standard definition television; HD High Definition TV; FHD Full HD TV; UHD ultra high definition TV. It can be said that the replacement of TV display represents the mainstream of TV development. Nowadays, the role of TV is not only used for image function, but also integrated with other intelligent functions.