The LCD backlight in this series used a CCFL lamp setup. The inverter (Ballast) used here converts the power to around 1300 volts to cause the gas inside to convert to a plasma. Your laptop uses LED’s which is a very different system.
[https://www.electrothinks.com/2020/03/CFL-bulb-circuit-working-explanation.html#:~:text=At%20the%20starting%20time%2C%20the,low%20current%20to%20the%20tube|CFL Bulb Circuit Working Explanation]