Backplane, frame structure and display device

A backplane secured to a middle frame in a display panel to form a frame structure of the display panel, the backplane comprising:

• a bottom plate and a skirt connected to edges of the bottom plate;
• wherein at least part of the skirt is provided with a clamping member for securing the backplane to the middle frame;
• and wherein the clamping member is provided with a breakable structure configured to break under an external force for disengaging the clamping member from the skirt so that the backplane is separated from the middle frame,
• wherein the skirt of the backplane comprises a first side surface and a second side surface extending along a length direction thereof and arranged oppositely;
• the clamping member comprises a first side part and a second side part arranged oppositely, and an upper part connected between the first side part and the second side part;
• the first side part is provided with a clamping tongue structure as the breakable structure, and the first side surface is provided with a groove;
• the second side part is provided with a clamping elastic sheet;
• and
• when the clamping member is clamped onto the skirt, the clamping tongue structure is engaged in the groove, and the clamping elastic sheet secures the backplane to the middle frame, and when the clamping tongue structure is broken from a root of the clamping tongue structure under the external force, the clamping tongue structure is released from the groove, so that the clamping member is disengaged from the skirt,
• wherein the first side part is provided with a second hollowed-out portion;
• the clamping tongue structure is disposed in the second hollowed-out portion, with one end configured as the root closer to the bottom plate secured to a lower side of the second hollowed-out portion closer the bottom plate and the other end away from the bottom plate being movable, and
• the clamping tongue structure has the smallest cross-sectional dimension at the root.