Answer:
monitor backlighting.
Explanation:
The backlight is responsible for brightness on LCD (Liquid Crystal Displays) devices like a computer monitor, they increase the visibility on the displays but when you notice dimness on the displays but there's an image or text on the screen then the backlight is faulty. backlight fault usually occurs when there's the impact of a drop or a short-circuit caused by a spill of liquid around the display area.