Backlight module, liquid crystal display screen, and using method thereof

A liquid crystal display screen, comprising:

• a liquid crystal display panel including a first surface and a second surface opposite each other;
• and
• a backlight module disposed on the second surface of the liquid crystal display panel and including a first backlight component and a second backlight component, wherein the first backlight component and the second backlight component are disposed opposite each other, the second backlight component includes a first side and a second side opposite each other, and the first backlight component is disposed on the first side or the second side;
• or wherein the first backlight component and the second backlight component are disposed in parallel, the second backlight component includes a first end and a second end opposite each other, and the first backlight component is disposed at the first end or the second end,
• wherein the first backlight component includes an adjustable transparent panel and a light emitting diode light strip disposed at one end of the adjustable transparent panel;
• when the light emitting diode light strip switches on and the adjustable transparent panel is in a backlight state, a path of light emitted by the light emitting diode light strip towards the adjustable transparent panel is changed to form a uniform plane light source;
• and
• when the light emitting diode light strip switches off and the adjustable transparent panel is in a transparent state, light from outside of the backlight module is transmitted through the adjustable transparent panel.