For the ASUS A55VM series, for LCD monitors, a monitor with the highest resolution of 1024x768 has 786,432 light point groups (a light point group is composed of three light points, respectively controlling the brightness of the RGB color filter) , using the light points in each light point group above to be independently responsible for the color display and light brightness. The bright spot phenomenon occurs on all LCD displays, including color LCD displays on digital cameras. The reason is that each light point on the LCD display has an independent transistor to control the strength of its current. If there is a problem with the transistor at that point, it will cause the light point to always light up or not light up. The color will also be fixed to a certain color, which is the highlight of the LCD.