I pulled this out of a cheap old monitor. I originally thought it would be easy to use this backlight as a task light, as I am lighting my workshop with a 55" led backlight from an old TV, and its amazing. This backlight is almost certainly high voltage, as I can see the wires going to it are directly connected across the output of two HV transformers on the top side of the power supply. The backlight panel itself is a piece of thick plastic or glass with a grid pattern on one side. This is not connected with any wires, and just sits between the edges of the housing, which is where the wires go.
If anyone knows what type of backlight this is, or more information on it, that would be awesome!