Backlight device and display device
AssigneeJapan Display Inc.
InventorsTetsuro Ochi, Ken Sugiyama, Toshiyuki Tsubota, Kazunari Nishita
Life of this patent
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Abstract
A backlight device is provided and includes a frame formed of a sheet material; a first adhesive layer provided on one surface of the frame; a reflective sheet attached to the frame with the first adhesive layer; an optical member disposed on the reflective sheet in the frame; and a light source disposed in the frame and configured to emit light to the optical member, wherein in at least a part of the frame, a width of the frame and a width of the first adhesive layer are equal to each other, and at least an internal surface of the frame and an internal surface of the first adhesive layer are flush with each other.
Claims15
A backlight device comprising:
- a frame formed of a sheet material and comprising at least four bars;
- a first adhesive layer provided on one surface of the bars;
- a reflective sheet attached to the frame with the first adhesive layer;
- a second adhesive layer is provided on another surface opposed to the one surface of the bars;
- an optical member including a lightguide plate disposed on the reflective sheet in the frame;
- and
- a light source disposed in the frame and configured to emit light to the optical member,
- wherein
- a thickness of the second adhesive layer provided on three successive bars of the frame along three sides of the lightguide plate is greater than a thickness of the first adhesive layer provided on the four bars of the frame;
- in at least a part of the frame,
- a width of the frame, a width of the second adhesive, and a width of the first adhesive layer are equal to one another, and
- at least an internal surface of the frame, an internal surface of the second adhesive layer, and an internal surface of the first adhesive layer are flush with one another.
A display device comprising:
- a liquid crystal display panel;
- and
- a backlight device opposed to the liquid crystal display panel via a polarizing plate;
- the backlight device comprising:
- a frame formed of a sheet material and comprising at least four bars;
- a first adhesive layer provided on one surface of the bars;
- a reflective sheet attached to the frame with the first adhesive layer;
- a second adhesive layer is provided on another surface opposed to the one surface of the bars;
- a lightguide disposed on the reflective sheet in the frame;
- and
- a light source disposed in the frame and configured to emit light to the lightguide,
- wherein
- a thickness of the second adhesive layer provided on three successive bars of the frame along three sides of the lightguide plate is greater than a thickness of the first adhesive layer provided on the four bars of the frame;
- in at least a part of the frame,
- a width of the frame, a width of the second adhesive, and a width of the first adhesive layer are equal to one another, and
- at least an internal surface of the frame, an internal surface of the second adhesive layer, and an internal surface of the first adhesive layer are flush with one another,
- the polarizing plate covers at least two of the internal surface of the first adhesive layer facing each other via the lightguide.
Dependencies are inferred from the claim text.