Backlight device and display apparatus

A backlight device, comprising:

• a light source;
• a light guide plate with an edge face receiving light entering from the light source and with a flat surface emitting light;
• a bezel;
• a supporting member with a part being disposed at a back side of the flat surface of the light guide plate, for supporting the light guide plate;
• and
• a pressing member with a part extending toward the light emitting surface side of the light guide plate, for pressing the light guide plate between the pressing member and the supporting member;
• and
• wherein
• the supporting member includes a connecting plate extending along the edge face of the light guide plate toward the pressing member and disposed in non-parallel at a side of the light guide plate, to be connected with the bezel and having an end being opposite to the pressing member,
• a through hole is formed in the connecting plate, and
• a closest portion, which is a portion of the front side end of the connecting plate and is closest to the through hole, or an opposing portion, which is a portion of the pressing member and is opposite to the closest portion, is recessed in such a manner that the closest portion and the opposing portion are separated by a distance equal to or larger than a length at which the end of the connecting plate protrudes due to deformation of the connecting plate.