Illumination apparatus and display device
AssigneeSharp Kabushiki Kaisha
InventorTakaharu Shimizu
Life of this patent
Estimating the term…
Abstract
Provided is an illumination apparatus which prevents variations in the distance between the light-receiving surface of a light guide plate and a light source. Also provided is a display device which incorporates the illumination apparatus. The light guide plate, which constitutes a backlight unit, receives light through a light-receiving surface with the light-receiving surface oriented toward the light being emitted. In the backlight unit, pillars extend to intersect the direction of emission from an LED and are thus brought into contact with a device-carrying board and the light guide plate, which are superposed one on the other, thereby securing the device-carrying board and the light guide plate.
Claims10
An illumination apparatus, comprising:
- a light source;
- a mount board on which the light source is mounted;
- a light guide plate that faces a light reception surface toward a light emission direction of the light source to receive light via the light reception surface;
- and
- a shaft that extends in a direction intersecting the light emission direction, touches the mount board and the light guide plate overlying each other, and fixes the mount board and the light guide plate.
A display device, comprising:
- an illumination apparatus;
- and
- a display panel configured to receive light from the illumination apparatus,
- wherein the illumination apparatus comprises:
- a light source;
- a mount board on which the light source is mounted;
- a light guide plate having a light reception surface that faces toward a light emission direction of the light source to receive light via the light reception surface;
- and
- a shaft that extends in a direction intersecting the light emission direction, touches the mount board and the light guide plate overlying each other, and fixes the mount board and the light guide plate.
Dependencies are inferred from the claim text.