màn hình và bảng hiển thị video của chúng tôi làm việc cùng nhau như một cặp, giống như một đĩa và bộ điều khiển của nó. Các khả năng của màn hình phải phù hợp với nhu cầu của các chế độ hiển thị theo yêu cầu của phần mềm và đầu ra của bạn bằng thẻ video của bạn. Để hiểu làm thế nào các giám sát | P A R T Video III In This Part Chapter 6 Video Chapter 7 Monitors and Flat Panels Video C R Your monitor and video display board work together as a pair much like a disk and its controller. The capabilities of the monitor must match the needs of the display modes requested by your software and output by your video card. To understand how the monitor and video board work together and contribute to the performance of your computer we ll start at the monitor and work inward through the functions of the video board. In This Chapter Behind the screen A Computer Monitor Is Not the Same as a Television Although much of what a computer monitor does appears similar to what a television does the requirements on a computer monitor are much more stringent. A television that meets the North American standard for example displays roughly 525x700 pixels with a viewable area smaller than those numbers. The European Phase Alternating Line PAL standard is a little different at 625x833 pixels but close to the same size. The most basic computer monitor meeting the Video Graphics Array VGA standard however displays no fewer than 640x480 pixels all viewable with very high-end monitors capable of resolutions of 2 048x1 536 pixels and more. It is for this reason that products that display television in a window on the computer screen are fairly inexpensive and work well but products that display computer images on televisions are limited to basic VGA resolutions 640x480 is common although some products output up to 1 024x768 and often smear the images. If you look closely at the screen on a conventional monitor or liquid crystal display LCD panel you ll see a pattern of tiny colored dots that when each is lit up at the right brightness forms the picture you see monitors using the Sony Trinitron tubes have vertical lines of color instead . These dots are called pixels picture elements . The chain of electronics that delivers this image to you runs from the face of the monitor s cathode ray
