Testing methods typically involve measuring multiple key parameters, including but not limited to the luminous flux, luminous efficiency, color temperature, color coordinates, color purity, and brightness uniformity of LED light components. Luminous flux reflects the total amount of light emitted by LED light components, while luminous efficiency measures the ability to convert electrical energy into light energy. Color temperature, color coordinates, and color purity collectively determine the color performance of the backlight, while brightness uniformity ensures consistent backlight brightness across the entire LCD screen.