1. Resolution

Resolution is a very important performance indicator. It refers to the number of dots that can be displayed in the horizontal and vertical directions on the screen (the lines and surfaces displayed on the screen are composed of dots). The higher the resolution, the same screen The more information can be contained within. Both the 320*240 resolution and 240*128 resolution can perform better. Because there is not much difference between the two, but the larger resolution may not be the appropriate resolution. If the content of the 320*240 LCD screen is used on the 240*128 LCD screen, the display content must be reduced.

2. The viewing area of the LCD screen

Refers to the part of the display area that can be used to display images in actual applications. The full size is actually the size of the frame and the PCB board. The part that can be used to display the image does not reach this size at all, because the frame takes up a part of the space. Generally speaking, the display area of the 5.7-inch 320240 LCD screen is 122*92mm, and the display area of the 5-inch 240128 LCD screen is 114*64mm. But for LCD, the nominal size is basically the size of the visible area, and the space occupied by the frame is relatively small. The display area of the 320240 LCD screen of 5.7 is 122*92mm. So when buying an LCD screen, just choose the one that suits your equipment.

3. Response speed

The time unit for measuring the response speed is milliseconds (ms), which refers to the time required for a pixel to turn from bright to dark and from dark to bright. The smaller the value, the better, the smaller the value, the faster the response speed. At present, the response speed of mainstream LCDs is above 1-2ms, which does not matter much in general industrial use.

4. Screen color

When it comes to color, there are generally three colors: white on blue/black on white/black on yellow. Customers can choose different display colors for the LCD screen according to different devices.