LCD Plate Question, What is LCD Panel?

TN type: This type of LCD panel is used in entry-level and mid-range products, which is affordable and inexpensive, and is chosen by many manufacturers. Technically, it is slightly inferior in technical performance compared to the first two types of LCD panels, it cannot show bright colors, it can only reach color (6bit panel) but the response time is easy to improve.

The viewing angle is also somewhat limited, and the viewing angle does not exceed 160 degrees. At present, most of the products on the market within the 8ms response time are TN LCD panels, which are generally 1999-2299 yuan.

PVA type: It is a type of panel launched by Samsung, which is an image vertical adjustment technology, which directly changes the structure of the LCD unit, so that the display performance can be greatly improved, and the light output and contrast ratio can be better than MVA. In addition, on the basis of these two types, the improved S-PVA and P-MVA panel types are extended, which are more advanced in terms of technical development, with a viewing angle of up to 170 degrees, a response time of less than 20 milliseconds (8ms GTG with OverDrive acceleration), and a contrast ratio of more than 700:

1. At a high level, most of Samsung's own products are PVA LCD panels.

LCD (short for Liquid Crystal Display).LCD monitor。The structure of LCD is to place an LCD box in two parallel glass substrates, a TFT (thin film transistor) is arranged on the lower substrate glass, and a color filter is set on the upper substrate glass, and the rotation direction of the liquid crystal molecule is controlled by the signal and voltage change on the TFT, so as to control the polarized light of each pixel and achieve the display purpose.

Nowadays, LCD has replaced CRT as the mainstream,** and has also declined a lot, and has become fully popular. A few days ago, according to data from Cinno Research, 2020 is expected to be the first year of mass production and listing of fingerprint recognition mobile phones under the LCD screen.

The first trick: check whether the connection between the monitor and the graphics card is loose. Poor contact will lead to "clutter" and "noise" like blurred screens are the most common phenomenon.

The second trick: check whether the graphics card is overclocked. If the graphics card is overclocked, it will usually appear irregular and intermittent horizontal stripes. In this case, the overclocking amplitude should be reduced appropriately. Note that the first thing to do is to reduce the memory frequency.

The third trick: check the quality of the graphics card. If there is a problem with the blurred screen after replacing the graphics card, and it is in use.

If the first and second tricks fail to work, you should check whether the quality of the graphics card's anti-electromagnetic interference and electromagnetic shielding is passable. The specific method is: keep some parts that may cause electromagnetic interference away from the graphics card installation (such as hard disks) as far as possible, and then see if the blurred screen disappears.

If you are sure that the electromagnetic shielding function of the graphics card is not up to standard, you should replace the graphics card or make your own shielding cover.

Trick 4: Check if the resolution or refresh rate of the monitor is set too high. The resolution of the LCD display is generally lower than that of the CRT display, and if it exceeds the best resolution recommended by the manufacturer, there is a possibility that the screen will be blurred.

Tip 5: Check if you have an incompatible graphics card driver installed. This situation is generally overlooked, as graphics drivers are being updated faster and faster (especially for NVIDIA graphics cards) and some users are always eager to install the latest version of the driver.

In fact, some of the latest drivers are either beta versions or optimized versions for a specific graphics card or game, and using them can sometimes lead to a blurred screen. Therefore, it is recommended that you try to use Microsoft-certified drivers, and it is best to use the drivers provided by the graphics card manufacturer.

Sixth trick: If the problem still cannot be solved after using the above five tricks, it may be a quality problem of the display. In this case, please change to a different monitor for testing.