Indication device

Abstract

To provide an illumination device and a display device that emit light with a uniform brightness distribution. [Solution] The display device comprises an illumination device and a display panel, the illumination device comprising a first light guide plate, a second light guide plate and a second reflector plate, the first light guide plate and the second light guide plate having a first short side and a second short side and a third short side and a fourth short side, the second reflector plate comprising a first section and a second section and a third section and a fourth section, the first section facing the first short side, the second section facing the second short side, the third section facing the third short side and the second section facing the second short side.

Claims

1. Lighting equipment, A display panel is provided on the aforementioned lighting device, Equipped with, The aforementioned lighting device is A first light guide plate having a rectangular shape with its corners cut off, extending along a first direction and a second direction intersecting the first direction, and having a first side and a second side extending along the second direction, and a third side and a fourth side extending along the first direction, A second light guide plate is placed on the first light guide plate and has a rectangular shape with the corners of the rectangle cut off, extending along the first and second directions, and having a fifth and sixth side extending along the second direction, and a seventh and eighth side extending along the first direction. A plurality of light source elements are provided opposite the fifth side of the second light guide plate, A first reflector is provided below the first light guide plate, An optical sheet provided on the second light guide plate, A second reflector is provided opposite to the second side of the first light guide plate and the sixth side of the second light guide plate, Equipped with, The cross-sectional shape of the first light guide plate is a trapezoidal shape in which the lower side is shorter than the upper side. The cross-sectional shape of the second light guide plate is a trapezoidal shape in which the upper side is shorter than the lower side. The first light guide plate and the second light guide plate have a first short side extending in the first direction and a second short side extending in the second direction, which are alternately arranged between the third and second sides of the first light guide plate and between the seventh and sixth sides of the second light guide plate. The first light guide plate and the second light guide plate have a third short side extending in the first direction and a fourth short side extending in the second direction, which are alternately arranged between the fourth and second sides of the first light guide plate and between the eighth and sixth sides of the second light guide plate. The second reflector comprises, arranged alternately with respect to each other, a first section extending along the first direction and a second section extending along the second direction, and arranged alternately with respect to each other, a third section extending along the first direction and a fourth section extending along the second direction. The first section faces the first short side, and the second section faces the second short side. A display device wherein the third section faces the third short side, and the second section faces the second short side.

2. The display device according to claim 1, wherein each of the plurality of light source elements is a laser light source that emits laser light.

3. The display device according to claim 1, wherein the display panel is a liquid crystal display panel.

4. The aforementioned display panel shall be referred to as the first display panel, and the aforementioned lighting device shall be referred to as the first lighting device. The aforementioned display device is A second display panel having a shape symmetrical to the first display panel with respect to the second direction, A second lighting device having a shape symmetrical to the first lighting device with respect to the second direction, The display device according to claim 1, comprising:

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