Basic knowledge of LCD ☆ Resolutions LCD monitors currently available on the market are available in the following resolutions ☆ DVI (Digital Visual Interface) ☆ dot defect ☆ mura KCC Certificate Extension Sockets England Power Socket,Silver Wall Sockets,Wall Switches And Sockets,Wall Socket With Usb Charging Ports Heikki Technology Co., Ltd. , https://www.heikkipower.com
XGA: 1024 * 768 SXGA: 1280 * 1024 SXGA +: 1400 * 1050 UXGA: 1600 * 1200
In addition, there are some higher resolution panels (usually for special purposes), and the widescreen 16: 9 or 16:10 that is probably not used by people in Taiwan, so I will not discuss it here.
The resolution of the LCD monitor indicates the number of points it can display. This is a fixed value and there is no way to adjust it. Under the same size, the higher the resolution, the more detailed the screen can be displayed. Suppose you bought an XGA Monitor, then your graphics card must not be set to other resolutions, such as 800 * 600. Because in this case, the computer actually scales an 800 * 600 screen to 1024 * 768 in Display, the result is to see a blurry picture.
The correct approach is to set the resolution to the resolution of the monitor you bought.
Computers process digital signals. After processing, digital signals are also sent, but traditional CRT monitors use analog signals. In order to communicate with CRT, the signals sent to CRT must be converted to analog before they can be used. So generally The output of the graphics card (D-sub, which is the small slot with 15 pins), sends analog signals.
The LCD monitor also uses digital signals, but in order to be compatible with general display cards, it will be designed to receive the analog signal sent from the D-sub connector, and then convert this analog signal into a digital signal for processing and display. Here A problem arises, whether it is digital to analog, or analog to digital, there must be a loss of signal.
Therefore, for this stupid reason compatible with CRT, the LCD monitor carried out two unnecessary signal loss. The result is that the picture you see will be a little blurry. In fact, the original ability of the LCD can be displayed more. clear.
Since LCD monitors have been selling well in the past two years, display card manufacturers have also begun to introduce display cards that can directly output digital video, that is, an additional slot called DVI. If you buy a display card with a DVI slot, buy it again An LCD monitor with a DVI slot, at this time, the clarity of the LCD monitor display is the ability of the LCD originally designed.
Of course, this combination seems to be more expensive now. If you are not very picky about the quality of the picture, if you can use it, you can consider saving this money.
The so-called dead pixels refer to the uncontrollable constant light or dark points on the LCD. The bad pixels are the defects caused by various factors during the production of the LCD panel, which may be caused by the parTIcle falling inside the panel, or it may be damaged by static electricity The panel may be due to poor programming control, etc.
There are two types of dead spots: bright spots and dark spots. Bright spots are the points that are constantly bright on any screen. You can find them when you switch to a black screen. Dark spots are the points that are constantly dark on any screen. You can find them when you switch to a white screen .
In general, bright spots will be more unacceptable than dark spots, so many monitor manufacturers will guarantee no bright spots, but it seems that there are fewer guarantees of no dark spots. Some panel manufacturers will repair the bright spots into dark spots before shipping. Another Some types of panels may only have dark spots and no bright spots.
For example, MVA, IPS LCD panel, panel manufacturers will sell the price of the panel with a bad spot. Usually it is A grade without dead pixels, B grade within three points, C grade within six points. Generally speaking, these are It can be shipped normally. As for the lower-level panels, when the booming panel is out of stock (for example, in 2000), someone will still buy it.
This year, everyone ’s eyes should be wider. There is no way to fix the bad spots. If the monitor you bought has a warranty for the bad spots, you take it back to him, and he will change it for you.
mura was originally a Japanese word. As Japan's LCD monitors spread all over the world, this word became a word that can be communicated all over the world in the display industry. mura refers to the phenomenon that the brightness of the display is uneven, causing various traces.
The easiest way to judge is to switch to a black screen in the dark room, and other low-grayscale screens. Then look at it from various angles. With all kinds of process defects, LCD monitors have all kinds of Such as mura. It may be horizontal stripes or forty-five degree angle stripes, it may be a straight cut square, it may be a piece appearing in a corner, it may be that there are no rules at all, and there are traces of east and west.
mura will not have any impact on the use, this is a matter of taste. Panel manufacturers will sell mura-based panels as secondary products at a lower price. But I have not heard that monitor manufacturers have the kind of guarantee that there is no mura Yes. This is usually not included in the monitor specifications, so before buying it, keep your eyes widened, and you have to admit that you are unlucky.