Abstract: A display apparatus includes: a substrate (32) provided with one surface on which a light emitting element (31) is mounted; a light guide plate (5) which is provided with one side surface facing the one surface of the substrate (32) and emits light from one surface of the light guide plate (5), the light being emitted from the light emitting element (31) and entering the light guide plate (5) through the one side surface; a display panel (2) which displays an image with light from the light guide plate (5); and a holding section (8A) which holds the display panel (2), and at least one contact prevention section (81) is arranged between the substrate (32) and the light guide plate (5), in a direction where the one surface of the substrate (32) faces the one side surface of the light guide plate (5), a size of the at least one contact prevention section is larger than that of the light emitting element (31) and is provided in the holding section (8A) to prevent contact of the substrate (32) and the light guide

Abstract: A casing integrally includes a first accommodation part in which an optical part is accommodated and a second accommodation part in which an optical support is accommodated. Since the optical part which is a part of an optical plate member formed in a bent plate shape is supported by the optical support which is another part of the optical plate member, it is unnecessary to prepare a thick and robust member for supporting the optical part. That is, the first accommodation part side of a light source device can be made thinner. Moreover, the second accommodation part side of a display apparatus functions as a stand for stationary installation of the first accommodation part side of the light source device. It is therefore possible to reduce the size of the light source device and also the display apparatus, since it is not necessary to attach a separate stand to the first accommodation part side of the light source device.

Abstract: A light source unit, comprising: a light guide plate; a light source facing to a peripheral surface of the light guide plate; and a reflection part reflecting light emitted from one surface of the light guide plate, wherein the reflection part comprises: an elongated portion, which is positioned at an outside of an edge of the light guide plate, being elongated in a direction crossing the one surface; and a protrusion portion, which is located at a position of the elongated portion that is away from the one surface, protruding from the position to the one surface, wherein the one surface side of the light source is covered with the protrusion portion.

Abstract: 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.

Abstract: A casing integrally includes a first accommodation part in which an optical part is accommodated and a second accommodation part in which an optical support is accommodated. Since the optical part which is a part of an optical plate member formed in a bent plate shape is supported by the optical support which is another part of the optical plate member, it is unnecessary to prepare a thick and robust member for supporting the optical part. That is, the first accommodation part side of a light source device can be made thinner. Moreover, the second accommodation part side of a display apparatus functions as a stand for stationary installation of the first accommodation part side of the light source device. It is therefore possible to reduce the size of the light source device and also the display apparatus, since it is not necessary to attach a separate stand to the first accommodation part side of the light source device.

Abstract: A backlight device comprising a light source, a light guide plate with a side surface receiving light entering from the light source and with one surface emitting light, a frame body surrounding the light source and an edge of the light guide plate, and an optical sheet placed at a region facing the one surface, wherein the frame body has a first covering part covering, at a side proximal to the light source, an edge of the one surface, the optical sheet is placed on the first covering part at the side proximal to the light source, and is placed at least partly on the one surface at a side where the light source is not provided, a support body for support of the light guide plate is arranged between the light guide plate and a bottom plate of the frame body, and the first covering part holds the light guide plate between the first covering part and the support body.

Abstract: A lighting device, comprising a light guide plate being housed in a casing with an opening and having one surface facing the opening, and a light source placed to face a side surface of the light guide plate, and emitting, from the one surface of the light guide plate, light emitted from the light source and entering the light guide plate through the side surface, comprising a frame body covering an edge of the one surface of the light guide plate from a side of the one surface, wherein the frame body has a rib facing at least a part of a side surface of the light guide plate, except for a side surface at a side proximal to the light source, and extending toward a bottom surface of the casing, and the rib is configured to be capable of being bent by pressing force from the light guide plate.

Abstract: A light source module includes a substrate on which a light source is mounted, a light guide plate emitting light from one surface of the light guide plate, the light having entered the light guide plate through an end surface of the light guide plate, a frame body covering a periphery of the light guide plate, and a fixing element fixing the substrate to the frame body in a state where the substrate is put between the frame body and the fixing element, wherein the light source includes a plurality of LEDs arranged side by side along the end surface, and the fixing element is engaged with the frame body and includes a positioning part positioning the light guide plate in a direction along which the plurality of LEDs are arranged side by side.

Abstract: A lighting device includes a casing housing a light source and having an opening formed at the casing and an extending part extending outward from a periphery of the opening, a translucent body covering the opening, for diffusing light emitted from the light source to output the light, and a frame body covering the extending part through the translucent body disposed between the frame body and the extending part, the frame body having a rib facing a side surface of the translucent body as well as facing and abutting on the extending part, the rib being configured to be capable of being bent by pressing force applied from the translucent body.

Abstract: The display device comprises a display panel, a light source, an optical plate being arranged to face the display panel and diffusing or guiding the light from the light source, and an optical sheet arranged on one surface of the optical plate, and further comprises a pressing part pressing an edge of the optical sheet, and a facing part coordinating with the pressing part and having a facing surface facing an end surface of the optical plate. The facing surface is slanting so that the distance between the facing surface and the end surface decreases toward the display panel.

Abstract: The display device comprises a light guide plate arranged at the side of a surface, of a display panel which has a display surface on one surface, opposite to the display surface, a plurality of light source elements arranged to face an end surface of the light guide plate, an optical sheet arranged at the display panel side of the light guide plate, and the display panel arranged to face the optical sheet, and further comprises a first holding portion shielding the light from the plurality of the light source elements to the display panel and holding the optical sheet at the light guide plate side, and a second holding portion separating the optical sheet from the display panel and holding the optical sheet at the side opposite to the first holding portion. A space is formed between the optical sheet and the display panel by the second holding portion.

Abstract: Provided are a compact and inexpensive backlight device that can prevent a large movement of an optical sheet, and a display apparatus including the backlight device. In a backlight device, light emitted by the plurality of LEDs enters an upper end face of a light guide plate, and the light guide plate emits the light from one plane. The optical sheet faces one plane of the light guide plate. A cover body is provided between one plane of the light guide plate and the optical sheet, and covers the plurality of LEDs and the circumferential part of one plane of the light guide plate on the LED side. A regulation member is engaged with each of the optical sheet and the cover body to regulate a movement of the optical sheet in the plane direction.

Abstract: A lighting device 24 includes a light guide plate 20, LEDs 28, an LED board 30, a chassis 22, a heat dissipation member 36, and a restriction member 40. The light guide plate 20 includes a light entrance surface 20a and a light exit surface 20b. The heat dissipation member 36 has a heat dissipation property and includes a bottom portion 36a and a stand-up portion 36b. The bottom portion 36a has a plate-like shape arranged on the bottom plate 22a so as to be parallel to the bottom plate 22a. The LED board 30 is mounted to a plate surface of the stand-up portion 36b such that a longitudinal direction thereof and a longitudinal direction of the stand-up portion 36b are parallel to each other and a dimension of the stand-up portion 36b in the longitudinal direction is larger than a dimension of the LED board 30 in the longitudinal direction. The restriction member 40 has elasticity.

Abstract: 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.

Abstract: A light source unit, comprising: a light guide plate; a light source facing to a peripheral surface of the light guide plate; and a reflection part reflecting light emitted from one surface of the light guide plate, wherein the reflection part comprises: an elongated portion, which is positioned at an outside of an edge of the light guide plate, being elongated in a direction crossing the one surface; and a protrusion portion, which is located at a position of the elongated portion that is away from the one surface, protruding from the position to the one surface, wherein the one surface side of the light source is covered with the protrusion portion.

Abstract: An object of the present invention is to provide a lighting device in which a problem is hardly caused by a hole formed in a chassis of the lighting device. A backlight unit (a lighting device) 1 according to the present invention includes an LED (a light source) 17, a flat cable (a flat conductor) 22 connected to the LED 17, a chassis 14 including a hole 14e, a cable protector (a flat conductor protector) 23 including a protection portion 24 and an insertion hole 24a extending through the protection portion 24. The chassis 14 houses the LED 17. The flat cable 22 is inserted through the insertion hole 24a. The flat conductor protector 23 is arranged such that the protection portion 24 is positioned between an edge of the hole 14e of the chassis 14 and a portion of the flat cable 22 that is positioned in the insertion hole 24a.

Abstract: An object of the present invention is to provide a lighting device in which a problem is hardly caused by a hole formed in a chassis of the lighting device. A backlight unit (a lighting device) 1 according to the present invention includes an LED (a light source) 17, a flat cable (a flat conductor) 22 connected to the LED 17, a chassis 14 including a hole 14e, a cable protector (a flat conductor protector) 23 including a protection portion 24 and an insertion hole 24a extending through the protection portion 24. The chassis 14 houses the LED 17. The flat cable 22 is inserted through the insertion hole 24a. The flat conductor protector 23 is arranged such that the protection portion 24 is positioned between an edge of the hole 14e of the chassis 14 and a portion of the flat cable 22 that is positioned in the insertion hole 24a.

Abstract: A backlight unit 12 includes a cold cathode tube 17, a chassis 14, a stand 19, a cold cathode tube holder 18 and a rotor 26. The cold cathode tube 17 includes electrodes at ends and a luminescent material sealed therein. The chassis 14 includes a bottom plate 14a arranged on an opposite side from a light output side with respect to the cold cathode tube 17, and houses the cold cathode tube 17. The stand holds the chassis 14 such that a plate surface of the bottom plate 14a is set along the vertical direction. The cold cathode tube holder 18 holds the cold cathode tube 17 in a position parallel to the plate surface the bottom plate 14a. The rotor 26 rotates the cold cathode tube 17 around an axis perpendicular to the plate surface of the bottom plate 14a with respect to the chassis 14.