LIGHTING DEVICE AND DISPLAY DEVICE
First Claim
1. A lighting device comprising:
- a light source;
a light guide plate having a rectangular plate-like shape and including peripheral surfaces opposite from each other and plate surfaces, at least one of the peripheral surfaces being configured as a light entrance surface opposite the light source, one of the plate surfaces is configured as a light exit surface;
a reflection member including a reflection surface opposed to the plate surface of the light guide plate opposite from the light exit surface and configured to reflect light from the light guide plate with the reflection surface;
an anisotropic light collecting portion formed on a side of the light guide plate opposite from a side on which the reflection member is disposed and including unit light collectors extending along a first direction that is along peripheral surfaces of the light guide plate not including the light entrance surface, the unit light collectors being arranged parallel to one another along a second direction along the peripheral surfaces including the light entrance surface; and
an anisotropic reflection portion including unit reflectors disposed on the reflection surface of the reflection member, each of the unit reflectors extending along the first direction, the unit reflectors being arranged parallel to one another along the second direction.
1 Assignment
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Accused Products
Abstract
A backlight unit includes LEDs, a light guide plate, a reflection sheet, a prism sheet, and an anisotropic reflection portion. The light guide plate includes a light entrance surface opposed to the LEDs and light exit surface. The reflection sheet includes a reflection surface opposed to an opposite plate surface of the light guide plate opposite from the light exit surface. The prism sheet is formed on a side of the light guide plate opposite from a side on which the reflection sheet is disposed. The prism sheet includes unit prisms that extend along a first direction and are arranged parallel to one another along a second direction. The anisotropic reflection portion includes unit reflectors disposed on the reflection surface of the reflection sheet. The unit reflectors extend along the first direction and are arranged parallel to one another along the second direction.
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Citations
15 Claims
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1. A lighting device comprising:
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a light source; a light guide plate having a rectangular plate-like shape and including peripheral surfaces opposite from each other and plate surfaces, at least one of the peripheral surfaces being configured as a light entrance surface opposite the light source, one of the plate surfaces is configured as a light exit surface; a reflection member including a reflection surface opposed to the plate surface of the light guide plate opposite from the light exit surface and configured to reflect light from the light guide plate with the reflection surface; an anisotropic light collecting portion formed on a side of the light guide plate opposite from a side on which the reflection member is disposed and including unit light collectors extending along a first direction that is along peripheral surfaces of the light guide plate not including the light entrance surface, the unit light collectors being arranged parallel to one another along a second direction along the peripheral surfaces including the light entrance surface; and an anisotropic reflection portion including unit reflectors disposed on the reflection surface of the reflection member, each of the unit reflectors extending along the first direction, the unit reflectors being arranged parallel to one another along the second direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification