- May 08, 2018 -
First select the size of theLCD screen, the general standard 17 inches, 34 inches, in fact, when the factory is not so big, the factory set the default value for you is a smaller area on the screen
The relationship between the LCD monitor size and the optimal resolution, say, if you choose a 15-inch LCD monitor, you must accept a resolution of 1024 x 768 because the screen will be clear only at this resolution. Then you have to consider whether you should choose 17-inch and 19-inch LCD monitors, otherwise you will have to endure all kinds of defects such as font blurring, ghosting, and picture distortion at non-optimal resolutions, as well as the slowness of the game and the inability to watch TV. Complete display and other issues.
The response time of the liquid crystal display Because the liquid crystal itself is various, plus the standard of test response time is not uniform, the test method is very complicated, so actually the industry has not a very strict reference standard for the important parameter of response time, Consumers can only rely on official information and cannot judge by their own tests. In general, the response time of a liquid crystal display includes a rise time and a fall time. The rise time is the time from power-on until the liquid crystal molecules completely reverse to the maximum angle, that is, the time from when the power is applied until the signal display is normal, and the fall time is the opposite. Therefore, the response time is actually the overall reaction time of the entire liquid crystal movement. The direct reflection of the long response time LCD on the screen is that the performance of the moving picture is relatively vague, which greatly affects the fun of playing games and watching the video discs.
The viewing angle of the liquid crystal display includes two indicators of horizontal viewing angle and vertical viewing angle. The horizontal viewing angle means that the vertical normal line of the display (ie, the vertical imaginary line in the middle of the display) prevails. The display image can still be normally seen at a certain angle on the left or right of the line. This angle range is the horizontal viewing angle of the LCD monitor. Similarly, if the horizontal normal line prevails, the upper and lower viewing angles are called vertical. View angle.
Selection of LCD Interfaces Currently, the interfaces of the mainstream LCD monitors on the market are generally the traditional 15-pin D-Sub. Some products also have D-Sub and DVI interfaces. Judging from the development trend, the digitization of the liquid crystal display interface is an inevitable direction of development.
Selection of after-sales services and brands The advanced circuit structure and highly integrated design of LCDs have significantly improved the failure rate relative to CRT monitors, and the repair rate is much lower than that of the latter. But also because of the special structural features of the LCD monitor, once the circuit fails, you can't easily commission the appliance repair shop to repair the CRT monitor. Under normal circumstances, once the circuit failure occurs in the liquid crystal display, it can only be returned to the factory for repair. Therefore, after-sales service is particularly important. At this point, well-known brands are more trustworthy and have a 3-year warranty. Don't try to choose cheaper products that don't guarantee after-sale service.