Led light source device, backlight device and liquid crystal display device
OwnerHiroaki Shigeta, Koji Yamabuchiinventors
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Abstract
Provided is an LED light source having improved luminance characteristics. The LED light source device (1) is provided with a light emitting body (12) mounted on a mounting surface (11a) of a base member (11), and a transparent resin member (13), which is formed on the mounting surface (11a) and provided with a light emitting surface (13a) and a side end surface (13b). The side end surface (13b) is tilted so that the length of the light emitting surface (13a) in the lateral direction is longer than the length of the mounting surface (11a) in the lateral direction, and an interface between the side end surface (13b) and atmosphere is permitted to be a reflecting surface.
Claims20
An LED light source device comprising:
- a base member that has a mount surface facing in a light output direction;
- a light emitting body that is mounted on the mount surface of the base member and includes at least a light emitting diode element;
- and
- a transparent resin member that is so formed on the mount surface of the base member as to cover the light emitting body;
- has a light output surface facing in the light output direction and a side end surface for connecting the light output surface and the mount surface of the base member to each other;
- guides light generated by the light emitting body to output the light from the light output surface;
- wherein
- the side end surface of the transparent resin member is inclined in such a way that a lateral-direction length of the light output surface becomes longer than the lateral-direction length of the mount surface of the base member;
- and
- an interface between the side end surface inclined of the transparent resin member and atmosphere serves as a light reflection surface.
Dependencies are inferred from the claim text.