Characteristics of common LCD panels and their distinguishing methods

LCD panel is the LCD TV screen, its output, quality and market environment, and many other factors are related to the quality of the LCD display itself, price and market trend, because a liquid crystal display its cost of about 80% are concentrated in the panel. The quality of LCD panel, technology is also related to the overall performance of the LCD display. Now the LCD screen is divided into three files: the best quality is of course the sharp screen, followed by Japanese and Korean manufacturers of LCD screen, such as Samsung Sony LCD screen (S-LCD panel) and lg.philips LCD screen (LPL panel), the last is the Taiwan manufacturer's screen, such as Friends Tatsu and Chi Mei. They all have their own liquid crystal materials and panel structure, and the advantages and disadvantages are not the same! The following is a brief introduction to the characteristics and distinguishing methods of several common LCD panels.

One, sharp screen

Sharp screen, top LCD panel, sharp screen using the ASV technology and NEC launched the Extraview-type LCD panel, its features are color restore true, excellent visual angle, is the LCD market in the name of the king.

The real sharp-screen pixel is a honeycomb or hexagonal shape that is very characteristic and is easily recognizable.

Second, Japan and Korea screen

Samsung Sony S-LCD Panel

Soft screen class panel is now high-end LCD application of more panel types, 16.7M color number and large visual angle is the type of panel positioning high-end capital, while the VA class can be divided into MVA panels and PVA panels.

1, MVA (multi-domain Vertical Alignment) mode of the LCD panel, its liquid crystal molecular long axis in the electricity does not like the TN mode parallel to the screen, but perpendicular to the screen, and each pixel is composed of a number of such vertical-oriented liquid crystal molecules.

2, PVA (patterned Vertical alignment, vertical oriented configuration) wide viewing angle technology, PVA wide angle of view technology also belongs to the category of VA technology, can be said to be a variant of MVA. PVA adopts transparent Ito electrode instead of the liquid crystal layer in MVA, the transparent electrode can obtain better opening rate and minimize the waste of backlight.

S-LCD Panel is the PVA panel, Samsung main push PVA mode wide viewing angle technology, due to its strong capacity and stable quality control system. Look closely at the half pixel of fish scaly, the line is thinner. The S-LCD panel uses PVA technology, the technology uses transparent Ito electrode layer, so its higher opening rate can obtain the brightness output than MVA, PVA technology also has 500:1 high contrast ability as well as up to 70% of the primary color display ability.

Lg. Philips Screen LPL Panel

IPS (in Plane switching plane control mode) The biggest selling point of wide-angle technology is that its poles are all on the same side, and unlike other liquid crystal models, the electrodes are in the upper and lower sides, three-dimensional arrangement. As the electrodes in the same plane, no matter in what state the liquid crystal molecules are always parallel to the screen, will reduce the opening rate and reduce the transmittance, so the IPs application on the LCD TV will need more backlight.

LPL The biggest feature is the use of the technology in the broad perspective of IPs technology, the advantage is a high visual angle, fast response, color reduction accuracy, cheap; But the disadvantage is that there are leaky problems, black purity is not enough.

LPL panel of fish in the direction of the squamous pixels to the left, and LPL screen and ordinary LCD screen, with the hand is not easy to press the plum blossom fingerprint.

The simplest way to distinguish between a soft screen and a hard screen is to gently slide over the LCD screen with your finger, and if there is a noticeable water mark in the place where the finger slips, it is Samsung's S-LCD. If there is no water mark, or the water mark is not obvious, then prove this is the LPL panel.

Third, Taiwan screen

In fact, most of the low-end products are used in Taiwan, Taiwan screen pixels are mostly vertical bar, visual angle to small, Taiwan's screen has little characteristics.

Summarize

LCD TV technology content is high, consumers with this resolution is not clear which LCD panel, not to mention the LCD TV specific which screen is how. Here is a summary of some of the experience, in order to reduce the probability of a clear resolution.

First of all, do not blindly pursue low prices. There will be many manufacturers in the market price war, the reason is due to the consumer's pursuit of low-cost products.

Second, there is a preliminary understanding of the characteristics of the screen. Screen technology has four kinds, namely LG Philips screen, Samsung Sony, Sharp screen and Taiwan screen. Knowing the shape of their panel pixels, you can basically use this method to make a preliminary identification of the screen.

Finally, according to their own needs to choose products. Don't judge the quality of the product by the price.

Buy LCD Panel In addition to these "cheats" described above, but also rely on consumers to learn some professional knowledge, to their actual viewing feelings mainly, compare, so as to buy a satisfactory LCD TV.