A liquid crystal display device includes a display panel, a backlight module, and a connecting portion. The backlight module includes a back frame having a backplate and a bent portion connected to the backplate. The connecting portion includes a first fixing portion disposed on an end surface of the bent portion and fixedly connected to the end surface of the bent portion and the display panel. An orthographic projection of the end surface of the bent portion on the display panel covers an orthographic projection of an outer side of the first fixing portion on the display panel.