Sakai Display Products Corporation

Tomoo Sasaki

Yuki Horiguchi

Motoaki Okitsu

Takayuki Nakazawa

This light reflection device comprises: first reflective surfaces () whereby light from an exit surface S of a light source () is reflected; and second reflective surfaces () whereby the light reflected at the first reflective surfaces () is reflected in the exiting direction of the light from the exit surface S. In a plane containing a light axis L of the light source (), the first reflective surfaces () have a shape wherein portions from two ellipses E, Eare connected at the light axis L, first focal points Ffrom the respective ellipses E, Ebeing disposed on the second reflective surfaces (). If the light source () is disposed in such a manner that, in the plane, second focal points Ffrom the respective ellipses E, Eare positioned on the surface S, the angle between the light axis L of the light source () and the orientation of the reflected light on the second reflective surfaces () is less than 90&#xb0;.

Light reflection device and light source device

The present invention provides a display apparatus capable of exhibiting excellent heat dissipation properties with a simpler structure, and increasing productivity of products by reducing the number of components. In a television receiving apparatus () which includes a light guide plate () configured to emit light from one surface thereof, the light entering a side surface of the light guide plate (), and displays an image by the light emitted from the light guide plate (), the television receiving apparatus () includes a heat absorption plate () which is integrally molded with the light guide plate (), wherein one surface of the heat absorption plate () contacts with the other surface of the light guide plate (), such that the heat absorption plate () absorbs heat emitted by the light guide plate ().

Display apparatus

A light source module includes a substrate on which a light source is mounted, a light guide plate having one surface configured to emit light made incident from a side surface of the light guide plate opposed to the light source, a support configured to support the substrate at an opposite surface opposed to the side surface of the light guide plate, and an attachment member configured to attach the substrate to the support, wherein the attachment member includes a latch part to be latched to the support and a holding part configured to hold the substrate between the opposite surface and the holding part, and a height of the holding part that is holding the substrate from a surface of the substrate is higher than a height of the light source from the surface of the substrate.

Light source module and display apparatus

Display

A plurality of LEDs emit light to a right end surface of a light guide plate. The light guide plate emits the light from a front surface, the light being made incident on the right end surface. The heat dissipater dissipates heat generated by the plurality of LEDs. A backlight chassis supports the light guide plate. The backlight chassis includes: a cover plate for covering a rear surface of the light guide plate; and an upper wall connected to the cover plate, for covering an upper end surface of the light guide plate adjacent to the right end surface. The heat dissipater includes a right side wall for covering the right end surface of the light guide plate. The right end of the upper wall of the backlight chassis and the upper end of the right side wall of the heat dissipater are connected by a non-transparent connecting part.

Backlight device and display apparatus

The present invention provides a light source device which includes a light guide plate configured to emit light entered from a light source of a side face through one surface of the light guide plate, and an optical sheet disposed to face the one surface of the light guide plate, wherein the light source device includes interval holding parts which are provided along side faces of the light guide plate, and are configured so that one end portions thereof are disposed between the optical sheet and the light guide plate to maintain an interval between the optical sheet and the light guide plate, and the one end portions of the interval holding parts have a white color, such that it is possible to prevent shadows of the interval holding parts from being reflected on the display panel provided on a front side of the optical sheet, and a display apparatus including the light source device.

Light source device and display apparatus

Light sources are disposed to face two opposite end surfaces of light guide plate. Cutout parts are provided at respective centers of other two opposite end surfaces of the light guide plate. Pinching members which pinch the light guide plate are attached to rear cover which covers one surface of the light guide plate, the pinching members being at positions corresponding to the respective cutout parts of the light guide plate. The rear cover pinches the other two opposite end surfaces of the light guide plate by two pinching members, while supporting the one surface of the light guide plate.

Growing community of inventors

Sakai, Japan

Tomoo Sasaki