Projector standard resolution

The standard resolution of the projector refers to the original resolution of the image projected by the projector, also called the true resolution and the physical resolution. Corresponding to the physical resolution is the compression resolution. The resolution of the image is determined by the physical resolution. The resolution of the projector is determined by the compression resolution. The physical resolution is the resolution of the LCD panel. The liquid crystal is divided by a grid on the LCD panel, and one liquid crystal is a pixel. Then, when the output resolution is 1024×768, it means that there are 1024 pixels in the horizontal direction of the LCD panel and 768 pixels in the vertical direction. The higher the physical resolution, the wider the range of acceptable resolution, the wider the range of adaptation of the projector. The physical resolution is usually used to evaluate the grade of the LCD projector. The most widely used on the market are SVGA (800 × 600 resolution) and XGA (1024 × 768). The price of XGA is about 3000-5000 higher than that of SVGA.

The resolution of the projector is usually expressed in two ways. One is the TV line (TV line) and the other is represented by the pixel. When represented by television lines, the meaning of the resolution is similar to that of television. This resolution representation is mainly provided for matching the television signals that are connected to the projector. When expressed in pixels, it is usually expressed as 1024×768 or the like. In a sense, this limitation of resolution is a certain requirement for the line frequency and field frequency of the VGA signal input to the projector. When the VGA signal's line frequency or field frequency exceeds this limit, the projector will not be able to project the display properly.

The choice of projection resolution can be determined according to the actual projection content to buy what level of the projector, if the content of the presentation is based on general teaching and word processing, select SVGA (800 × 600), if the presentation of fine images (such as graphics Design) to buy XGA (1024 × 768). Since the mainstream resolutions of notebooks and desktops are now up to the XGA (1024×768) standard, it is recommended to purchase XGA (1024×768) resolution projectors as much as the budget allows.