A brief analysis of the mainstream panel of LCD TV

The liquid crystal panel can largely determine the brightness, contrast, color, and viewing angle of the liquid crystal display. The development speed of the liquid crystal panel is very fast. The liquid crystal panel part has a close relationship with the liquid crystal display, and its output, advantages and disadvantages, and market Environment and other factors are related to the quality, price and market trend of LCD monitors. Because 80% of the cost of a liquid crystal display is concentrated on the panel, then consumers pay attention to the panel when purchasing color TV. Is everything all right?

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When we talk to the salesperson about TV in the store, they often talk to you about the TV panel. Usually they will introduce the advantages of TV first, then compare other TVs with their own TVs, and then come to you. What to instill; "original screen, the best performance. Which home has a Taiwan screen, the quality is generally" and so on. So is there any practical basis for this statement? Let's explore it together.

It is understood that the components that make up an LCD TV mainly include: a liquid crystal panel, a backlight tube, an image processing circuit, a peripheral interface circuit, and a casing. Among them, the panel, the backlight tube, and the image processing circuit portion play a decisive role in image quality. A good TV is not a simple superposition of these components and requires very careful design and adjustment.

As with the "cask principle", there are many factors that affect the viewing performance of the TV. For example, the number of bits of the processing circuit, dynamic picture compensation/optimization techniques, reception and processing capabilities of television signals, and the like. Although the LCD panel occupies an important position in the cost and performance of the whole machine, if we only pursue the advanced index of this one, it may fall into a situation that is contrary to the original intention.

At present, the panels used in LCD TVs on the market are divided into three categories according to their origin: Japanese screen, Korean screen and Taiwan screen. Among them, Japan's Sony and South Korea's Samsung cooperate to produce LCD screens, which are relatively special. We can temporarily put it into the Korean screen. The Japanese screen is mainly called Sharp's ASV screen. The representative of the Korean screen is LPL (LG-Philips). The Taiwan screen mainly refers to the screens of Taiwan's two major manufacturers, AUO and Chi Mei.

A brief analysis of the mainstream panel of LCD TV

First of all, let's take a look at Sharp Screen. Although Sharp has had to hold Hon Hai because of the huge stock market losses, Hon Hai did not see any benefits after the money was saved. On the contrary, Sharp's ten-generation line has gradually matured. Sharp screen uses ASV (Advanced Super-V) technology to improve the response speed and viewing angle of the display. The Sharp panel production line has high production costs and limited production capacity. Therefore, in order to win the competitive advantage of the market, it has been the case that Sharp's low-end LCD TVs use the lower-priced Taiwan's panel. What we should pay attention to here is that the ASV claimed by Sharp is not his patented technology, but a general term for a class of technologies.

The biggest feature of LPL's screen is the use of IPS technology, which has the advantages of high viewing angle, fast response, accurate color reproduction and low price. The main disadvantage is that black does not perform well and is more prone to light leakage. The pixels of the LPL screen exhibit a relatively large fish scale shape. The S-LCD liquid crystal panel produced by Sony and Samsung belongs to the PVA (Patterned Vertical Alignment) VA technology category and is the successor and developer of MVA technology. And its comprehensive performance is not behind the latter, with a wide viewing angle and faster response time, the pixel is also fish scale, but much smaller than the LPL shape.

Taiwan screen used earlier relatively backward TN technology, with less color but cheaper price and limited viewing angle, so it has been a poor reputation. However, after several years of development, Taiwan's two giants have basically improved their production technology and absorbed the advantages of other liquid crystal technologies, and their development has been very rapid. The current Taiwan screen includes both MVA (Multi-domain Vertical Alignment) panel technology authorized by Fujitsu of Japan, S-lPS panel technology authorized by Hitachi, and the shadow of Sharp ASV panel technology. There are no certain shapes for the pixels of the Taiwan screen, depending on the specific model. In general, Taiwan's MVA panel technology is now relatively mature and is no longer synonymous with low quality and low price.

In addition to the place of origin, the most important technical indicators of the LCD panel are: displayable color number, response time, and viewing angle. The number of colors that can be displayed determines the range of gamuts that LCD TVs can ultimately achieve. The response time determines the dynamic image display of the TV. The viewing angle has great significance for the practicality of LCD TVs.

Through the explanation of knowledge, we can find that the gap between the panel technical indicators between them is actually very small. The difference in viewing angle is in the single digits and can be almost ignored. Therefore, we have reason to believe that as long as the outdated or particularly low-end panels are not used, the LCD panels of different origins are no longer the main reason for the TV performance gap. Let’s not ignore the panel and ignore the TV when purchasing TV. Other parameters, this is not conducive to the selection of the appropriate color TV.

When consumers buy LCD TVs, they need to pay attention to the LCD panel, but you can't buy TV on this point. You should also pay attention to the TV size according to your needs. Understand the current status of domestic flat-panel TV warranty, pay attention to the actual TV resolution and TV response. Time, highlights and dead pixels. There is also a need to improve the quality of the wall mounts. These matters that need attention are for the reference of consumers. These contents are a question that customers who intend to purchase LCD TVs must consider and figure out. These "primary" common sense Understood, I believe you can buy a satisfactory LCD TV.

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