Radiating member, illuminating device, electro-optical device, and electronic device
AssigneeSeiko Epson Corporation
InventorShinji Sakurai
Life of this patent
Estimating the term…
Abstract
A radiating member, an illuminating device, an electro-optical device, and an electronic device are provided which are capable of absorbing the heat generated from an LED, thereby increasing the amount of electric current flowable through the LED. More particularly, there are provided a point light source, a light guide plate for receiving the light radiated from the point light source, and a radiating plate including an adhesive layer formed to contact the point light source, and a metal layer formed over the adhesive layer and made of the material having a thermal conductivity (λ) equal to or greater than 90 W/mK at room temperature.
Claims12
An electro-optical display device comprising:
- an electro-optical panel;
- a point light source;
- a light guide plate with a narrow end disposed adjacent to the point light source and a broader surface facing the electro-optical panel, the light guide plate receiving light radiated from the point light source at the narrow end and guiding the received light toward the electro-optical panel from the broader surface;
- a metal plate radiator having a substantial sheet shape, the metal plate radiator having a first broad surface, a second broad surface facing in the opposite direction than the first broad surface, and at least one side surface extending between the first and second broad surfaces, the first and second broad surfaces each being larger than the side surface, the second broad surface being at least partially exposed;
- and
- an adhesive layer that attaches the first broad surface of the metal plate radiator directly to the light point light source;
- wherein the first broad surface of the metal plate radiator is in contact with the light guide plate adjacent to the point light source.
An electro-optical display device comprising:
- an electro-optical panel;
- a point light source;
- a light guide plate with a narrow end disposed adjacent to the point light source and a broader surface facing the electro-optical panel, the light guide plate receiving light radiated from the point light source at the narrow end and guiding the received light toward the electro-optical panel from the broader surface;
- and
- a metal plate radiator having a substantial sheet shape, the metal plate radiator having a first broad surface, a second broad surface facing the opposite direction than the first broad surface, and at least one side surface extending between the first and second broad surfaces, the first and second broad surfaces each being larger than the side surface, the first broad surface of the metal plate radiator being directly attached to the point light source, the second broad surface being at least partially exposed;
- wherein the first broad surface of the metal plate radiator is in contact with the light guide plate adjacent to the point light source.
Dependencies are inferred from the claim text.