Time flies, and it will soon be the Chinese New Year. Many people have the idea of ​​switching to a big TV at home before the Spring Festival, but OLED, LED, 4k, UHD, and other technical terms are dazzling. The election is really difficult. In fact, as long as we can clearly understand the status of television from several dimensions, we will not be fooled by various terms!
According to the screen light source distinguish: LED, OLED, ULED
LCD TVs are divided into LEDs, OLEDs, and ULEDs based on panel lighting technology. The different backlight sources directly determine the most intuitive experience of the color, brightness, contrast, etc. of the TV picture. Therefore, in the past two years, it has also become the technical focus of major TV manufacturers.
LED TVs currently on the market use mostly LCD liquid crystal displays, while the backlight source uses LED light-emitting diodes, which have low power consumption, long service life, low cost, high brightness, less failure, large viewing angle, and visible distance Such features, is now the mainstream backlight.
The full name of OLED is "organic light-emitting diodes." Although OLEDs and LEDs have only one letter difference, they actually describe two completely different things. The liquid crystal panel needs to emit light through the backlight source, the liquid crystal molecules cannot emit light by themselves, and the LED only refers to the backlight source. OLEDs are organic light emitting diodes that emit light spontaneously, so no backlight is required. Has the advantages of good anti-seismic performance, large viewing angle, high luminous efficiency, and ultra-thin. However, nowadays OLED TVs are still in the initial stage, the production cost is high, and the current price is relatively expensive, so there is no large-scale popularization in the market. On an e-commerce platform, the 55-inch OLED TV, the cheapest, also needs 15,000 yuan.
ULED is a display quality technology introduced by a domestic TV manufacturer, mainly for LCD TVs and electronic medical. It adopts multi-zone independent backlight control and Hiview art engine technology. ULED has significantly improved the traditional color display, contrast, and response speed compared to traditional LED display. Its image quality is close to that of OLED.
In addition, Quantum-dot TV called QLED is called a revolutionary product, but it has not been widely promoted yet.
According to resolution: SD, HD, 4K and 8K TVs
TVs can also be divided into standard definition televisions, high-definition televisions, ultra-clear televisions (4k televisions) and ultra-high-definition televisions (8K televisions). This is the definition of the picture. The higher the resolution, the more details can be seen. more.
SDTV refers to a TV with a resolution of 1280×720. The corresponding video is 720P. HDTV refers to a TV with a physical resolution of 1920×1080. A 4K TV refers to a physical resolution of 4096. ×2160 TV; Ultra HDTV (8K TV) refers to the physical resolution of the TV is 7680×4320, which is 16 times the resolution of HDTV!
In order to enjoy a high-resolution picture, in addition to the TV must have a sufficient resolution, there must be a corresponding source. If you are used to watching live broadcasts on cable TV every night, then 4K TV is still overkill. At present, some TV stations in China are basically standard-definition programs. The resolution of the screen is around 460p, and the high-definition programs provided by a few TV stations only reach 720P (1280×720).
Divided by function: 3D TV, curved TV, Internet TV and smart TV
LCD TVs can also be divided into 3D TVs, curved TVs, Internet TVs, and smart TVs. The replacement of television technology is fast, and new features are emerging. The popular 3D TV has now become the standard for LCD TVs.
Internet TV is the predecessor of smart TVs. These TVs have built-in network playback software (such as Mango TV, Best Connect, and Hwa, etc.), and they can watch TV programs and movies online. But these TVs have no memory, they can't download things, they can't install software.
Smart TVs are currently mainstream TVs in the market. These TVs have their own systems, including Android (most smart TVs are such systems), Hisense's VISION and VIDAA systems, Skyworth's Cool Open and God-given systems. These televisions can all be software, and they also include computing and image processors such as CPUs and GPUs. They can later use smart TVs to watch movies and shop online. Nowadays, many large TV manufacturers are very optimistic about smart TVs. Some companies with Internet backgrounds have also entered the smart TV market to grab share.
Next: More than 99% of users still do not know that the smart TV has these three functions