Backlight device and liquid crystal display apparatus
AssigneePanasonic Corporation
InventorsDaizaburo Matsuki, Katsuhiko Hayashi, Kenji Hasegawa, Hiroshi Yamaguchi
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Abstract
Provided is a backlight device having: a light source element having light emitting diodes and a lens expanding light from the light emitting diodes; a housing containing the light source element; a diffuser plate covering an opening portion of the housing; and a reflection sheet reflecting light emitted from the light source element, toward the diffuser plate. In the light source element, a plurality of the lenses are arranged at a central zone, the plurality of lenses being arranged in a plurality of rows.
Claims8
A backlight device comprising:
- a light source element extending linearly along a central zone of the backlight device, the light source element comprising a plurality of light emitting diodes and a plurality of lenses that spread out light from the light emitting diodes;
- a housing configured to contain the light source element;
- a diffuser plate provided so as to cover an opening in the housing;
- and
- a reflection sheet configured to reflect light emitted from the light source element, toward the diffuser plate, wherein
- each of the plurality of lenses of the light source element has an incident surface which light from the light emitting diodes enters, and an exit surface from which the light goes out having been spread, and
- in the light source element, the plurality of lenses are arrayed in a plurality of rows extending linearly along the central zone, the plurality of lenses being arrayed such that linear inter-lens intervals between lenses in row-longitudinal center and edge regions are narrower than between lenses in row-longitudinal regions intervening between the center and edge regions.
A liquid crystal display apparatus comprising:
- a liquid crystal display panel;
- and
- a backlight device placed on the back surface side of the liquid crystal display panel and having a size corresponding to the liquid crystal display panel, wherein
- the backlight device includes:
- a light source element extending linearly along a central zone of the liquid crystal display panel, the light source element comprising a plurality of light emitting diodes and a plurality of lenses that spread out light from the light emitting diodes;
- a housing configured to contain the light source element;
- a diffuser plate provided between the liquid crystal display panel and a light source;
- and
- a reflection sheet configured to reflect light emitted from the light source element, toward the diffuser plate, wherein each of the plurality of lenses of the light source element has an incident surface which light from the light emitting diodes enters, and an exit surface from which the light goes out having been spread, and
- in the light source element, the plurality of lenses are arrayed in a plurality of rows extending linearly along the central zone, the plurality of lenses being arrayed such that linear inter-lens intervals between lenses in row-longitudinal center and edge regions are narrower than between lenses in row-longitudinal regions intervening between the center and edge regions.
Dependencies are inferred from the claim text.