LIGHTING DEVICE, DISPLAY DEVICE, AND TELEVISION DEVICE

摘要

A backlight unit 12 includes a light guide plate 16, first LEDs 17A, second LEDs 17B, first support members 28, and second support members 29. The first LEDs 17A are opposed to a first light entrance surface 16nA that is a first edge surface 16E1 of the light guide plate 16. The second LEDs 17B are opposed to a second light entrance surface 16bB that is a second edge surface 16E2 of the light guide plate 16. The second LEDs 17B are arranged to be away from the second light entrance surface 16bB with a distance B relatively greater than a distance A between the first LEDs 17A and the first light entrance surface 16bA. The first support members 28 are in contact with the first edge surface 16E1 of the light guide plate 16 to support the light guide plate 16 from a first LED 17A side. The second support members 29 are arranged on a same side as the second LEDs 17B with respect to the light guide plate 16 to be away from the light guide plate 16. The second support members 29 are to be in contact with the second edge surface 16E2 according to thermal expansion of the light guide plate 16 to support the light guide plate 16 from a second light source side. The second support members 29 are made of an elastic material softer than a material of the first support members 28.

主权项

1. A lighting device, comprising:
a light guide plate having an edge surface as a light entrance surface and one plate surface as a light exit surface; a first light source opposed to a first light entrance surface that is a first edge surface of the light guide plate; a second light source opposed to a second light entrance surface that is a second edge surface of the light guide plate, the second edge surface being opposite to the first edge surface, the second light source arranged to be away from the second light entrance surface with a distance relatively greater than a distance between the first light source and the first light entrance surface; a first support member arranged on a same side as the first light source with respect to the light guide plate, the first support member being in contact with the first edge surface of the light guide plate to support the light guide plate from a first light source side; and a second support member arranged on a same side as the second light source with respect to the light guide plate to be away from the light guide plate, the second support member to be in contact with the second edge surface according to thermal expansion of the light guide plate to support the light guide plate from a second light source side, and the second support member being made of an elastic material softer than a material of the first support member.