Illumination device and display device
AssigneeSharp Kabushiki Kaisha
InventorKentaroh Aoki
Life of this patent
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Abstract
A display device includes a plurality of cold cathode tubes that define linear light sources and are arranged in an aligned state in a backlight device. A direction that is perpendicular or substantially perpendicular to a surface S along the direction of alignment of the cold cathode tubes is set as the illumination direction. The cold cathode tubes are supported in two kinds of postures whose axes intersect with each other. A first inclined cold cathode tube and a second inclined cold cathode tube are arranged in postures that incline the axis of each relative to the direction of illumination. The overall distribution of light intensity can be expanded by the amount of the relative inclination angles of the first inclined cold cathode tube and the second inclined cold cathode tube.
Claims5
A display device comprising:
- a display component;
- and
- an illumination device arranged to supply light to the display component, the illumination device including a plurality of light sources arranged in an aligned state;
- holders, each of which has an insertion hole into which an end of a respective one of the light sources is inserted, the holders being mounted respectively at two ends of each of the light sources;
- lamp holders, each of the lamp holders is arranged to hold a portion of the holders and includes a holding hole arranged to hold a respective one of the light sources;
- wherein
- the plurality of light sources are supported in at least two different postures such that axes of the light sources in the at least two different postures intersect with each other and are relatively inclined with respect to each other;
- the plurality of light sources include a light source that is supported such that an axis of the light source is inclined with respect to a display surface of the display component
- the insertion holes of the holders are arranged to support a corresponding one of the light sources at an inclined angle with respect to the display surface;
- the holding hole is arranged to hold a corresponding one of the light sources at the inclination angle;
- each of the lamp holders is defined by a first holder component arranged to support the light source at a side away from the display component and a second holder component arranged to support the light source at a side closer to the display component;
- the holding holes are defined by a combination of a first semicircle defined in the first holder component and a second semicircle defined in the second holder component;
- and
- the holding hole of the first holder component and the holding hole of the second holder component join together to define a substantially circular shape that encloses an outer circumference of the light source.
Dependencies are inferred from the claim text.