Driver seat airbag device

1 . A driver seat airbag device comprising:

a cover including a window, and the cover being coupled to a steering wheel of a vehicle;

a display module installed behind the cover and configured to display information to a driver through the window; and

an airbag assembly installed behind the display module,

wherein the cover includes a hidden film covering the window, and

the hidden film is configured to hide the display module when the display module is in a non-operation state and display the information when the display module operates.

2 . The driver seat airbag device of claim 1 , wherein the cover further includes:

a first body exposed to the driver; and

a second body at least partially hidden by the first body and partially exposed,

wherein, in the first body, the window is disposed as a region through which the second body is exposed.

3 . The driver seat airbag device of claim 2 , wherein

the first body includes an upper part and a lower part that are vertically separatable, and

the second body is exposed through a separation space between the upper part and the lower part.

4 . The driver seat airbag device of claim 3 , wherein

each of the upper part and the lower part of the first body includes a tear line, and

when an airbag cushion of the airbag assembly inflates, the upper part and the lower part of the first body are each configured to be torn along the respective tear line, the lower part is opened downward with respect to the steering wheel, and the upper part is opened upward with respect to the steering wheel along with the display module.

5 . The driver seat airbag device of claim 2 , wherein the cover is formed with a double injection structure in which the first body is formed through primary injection, the second body is formed through secondary injection along with the first body, and the first body and the second body are integrated.

6 . The driver seat airbag device of claim 5 , wherein

the first body is formed of a first material, and

the second body is formed of a second material different from the first material.

7 . The driver seat airbag device of claim 6 , wherein

the first body includes a primary injection part formed of a thermoplastic olefin (TPO) material, and

the second body includes a secondary injection part formed of a transparent polycarbonate (PC) material.

8 . The driver seat airbag device of claim 1 , wherein the display module includes:

an organic light-emitting diode (OLED) panel; and

a rear housing coupled to a rear inner surface of the cover to fix the OLED panel.

9 . The driver seat airbag device of claim 8 , wherein a bonding layer is interposed between the OLED panel and the rear housing.