Illumination device and display device
AssigneeMagnolia White Corporation
InventorTakashi Ota
Life of this patent
Estimating the term…
Abstract
According to one embodiment, an illumination device includes a light guide including a first edge and a second edge extending in a first direction, a third edge and a fourth edge extending in a second direction, a fifth edge provided between the first edge and the third edge, a sixth edge provided between the second edge and the third edge, and the fifth edge includes a first short edge extending in the first direction and a second short edge extending in the second direction, which are arranged alternately, and the sixth edge includes a third short edge extending in the first direction and a fourth short edge extending in the second direction, which are arranged alternately.
Claims13
An illumination device comprising:
- a light guide including a first edge and a second edge extending in a first direction, a third edge and a fourth edge extending in a second direction intersecting the first direction, a fifth edge provided between the first edge and the third edge, a sixth edge provided between the second edge and the third edge;
- a plurality of light source elements provided in close proximity to the fourth edge;
- and
- a reflector comprising a first portion parallel to the third edge, a second portion having a step-like shape, and a third portion having a step-like shape,
- wherein
- the fifth edge includes a first short edge extending in the first direction and a second short edge extending in the second direction, which are arranged alternately,
- the sixth edge includes a third short edge extending in the first direction and a fourth short edge extending in the second direction, which are arranged alternately,
- the second portion includes a first segment extending in the first direction and a second segment extending in the second direction, which are arranged alternately, and
- the third portion includes a third segment extending in the first direction and a fourth segment extending in the second direction, which are arranged alternately.
A display device comprises a display panel and an illumination device,
- the illumination device comprising:
- a light guide including a first edge and a second edge extending in a first direction, a third edge and a fourth edge extending in a second direction intersecting the first direction, a fifth edge provided between the first edge and the third edge, a sixth edge provided between the second edge and the third edge;
- a plurality of light source elements provided in close proximity to the fourth edge;
- and
- a reflector comprising a first portion parallel to the third edge, a second portion having a step-like shape, and a third portion having a step-like shape,
- wherein
- the fifth edge including a first short edge extending in the first direction and a second short edge extending in the second direction, which are arranged alternately,
- the sixth edge including a third short edge extending in the first direction and a fourth short edge extending in the second direction, which are arranged alternately,
- the second portion includes a first segment extending in the first direction and a second segment extending in the second direction, which are arranged alternately, and
- the third portion includes a third segment extending in the first direction and a fourth segment extending in the second direction, which are arranged alternately.
Dependencies are inferred from the claim text.