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.

Abstract: Uneven brightness is less likely to occur in lighting devices at low cost. A backlight unit 12 includes LEDs 17, a chassis 14 having a bottom plate 14a and housing the LEDs 17, and an LED drive controller 24 controlling drive of the LEDs 17. The LEDs 17 are arranged in a matrix in row and column directions (X-axis direction and Y-axis direction) along the bottom plate 14a, forming respective LED groups 25 each along the row direction. The LED groups 25 include a middle LED group 28 and an end side LED group 29. The middle LED group 28 is located in a middle portion of the bottom plate 14a in the column direction group and the end side LED group 29 is located closer to an end of the bottom part from the middle portion group. The LED drive controller 24 controls light of at least one of the middle LED group 28 and the end side LED group 29 such that the end side LED group 29 has relatively high brightness and the middle LED group 28 has relatively low brightness.

Abstract: A lighting device that can includes a chassis including a bottom and light sources. The light sources arranged in a row direction configure a light source group and light source groups are arranged in a column direction. The light source groups include a middle light source group (a middle group) and an end side light source group (an end group). The middle group is provided in a middle portion in the column direction and the end group is provided in an end portion in the column direction. One of the light sources of the end group that is arranged at a most distal end on one end side in the row direction is arranged on an outer side in the row direction on the bottom than one of the light sources of the middle group that is arranged at a most distal end on the one end side in the row direction.

Abstract: A feeding apparatus for a wide metal strip, wherein a plurality of through-holes are formed with predetermined gaps in a length direction and a width direction, into a cutter and pulls narrow metal strips formed by cutting the wide metal strip between the through-holes in the length direction so that through-holes are formed along only the length direction. The feeding apparatus includes a feeding-in apparatus that is provided on an entrance side of the cutter that feeds the wide metal strip into the cutter and a pulling-out apparatus that is provided on an exit side of the cutter that pulls out the narrow metal strips, which have been cut out by the cutter. A linking member drives the feeding-in apparatus and the pulling-out apparatus in concert so that the wide metal strip is fed into the cutter together with the narrow metal strips out being pulled out from the cutter.

Abstract: Occurrence of uneven brightness in a backlight unit is suppressed. A backlight unit 12 includes a hot cathode tube 17 as a light source; a chassis 14 including a bottom plate 14a arranged on a side opposite to a light exit side with respect to the hot cathode tube 17 and housing the hot cathode tube 17; a reflection sheet 20 including a bottom portion 20a extending along the bottom plate 14a and a rising portion 20b rising from a bottom portion 20a to the light exit side and reflecting light; a first holding member 21 arranged on a side opposite to the light exit side with respect to each rising portion 20b and fixed to the chassis 14; and a second holding member 22 arranged on the light exit side of each rising portion 20b and configured to sandwich each rising portion 20b with the first holding member 21.

Abstract: A lens (11) is bowl-shaped. The inner surface (11N) of the bowl shape is a housing recess (11N) which serves as a light receiving surface, and the outer surface (11S) of the bowl shape is a lens surface (11S) which serves as a light emission surface. The inner surface (11N) of the bowl shape is tapered toward the bottom of the bowl-shaped lens (11), and a conical, tip recess (12) which is receded from the outer surface (11S) is formed at the tapered end which is the bottom of the bowl-shaped lens (11).

Abstract: In a support pin (11) for supporting optical members (43 to 45) through which light from a LED (24) passes, the portion of a top (14), which is in contact with a diffusion plate (43), is formed of a light reflective material, and the portion of a column (12), which supports the top (14), is formed of a light transmissive material.

Abstract: In a lens unit (11), a support pin (12) is continuous with around, for example, a surface vertex (21T) on the lens surface (21S) of the lens (21). As with the lens (21), the support pin (12) is formed of a transparent material, and an end (12M) is connected to part of the lens surface (21S), and a tip end (12P) extends to the side of a liquid crystal display panel (59).

Abstract: An LED module (MJ) wherein among apertures (21A to 21C) and pins (11A to 11C) to engage each other, the apertures (21A to 21C) are formed in a mounting board (20) and the pins (11A to 11C) are formed on a lens (10). The apertures (21A to 21C) and the pins (11A to 11C) regulate the directivity direction of the lens (10) to a specific direction by engaging each other in one kind of manner.

Abstract: It is an object of the present invention to provide a lighting device having a simple configuration and obtaining an almost uniform illumination brightness distribution as a whole. A lighting device 12 of the present invention includes a plurality of light sources 17 arranged parallel to each other, and a chassis 14 having a bottom plate 14a on which the light sources 17 are arranged. Some of the light sources 17 are arranged on either side of a center line CL of the bottom plate at a center with respect to a parallel arrangement direction of the light sources 17 in the light source high-density areas HD in which a distance between the adjacent light sources 17, 17 is smaller than a distance between the adjacent light sources of others of the light sources 17 in another area.

Abstract: A backlight unit 12 included in a liquid crystal display device 10 includes an LED 16, a light guide plate 18, a first light scattering structure 23, and a light reflector 24. The LED 16 is a light source. The light guide plate 18 has alight entrance surface 18b through which light enters and a light exit surface 18c through which the light exits. The light entrance surface 18b is opposite the LED 16. The light exit surface 18c is parallel to the light entrance surface 18b. The first light scattering structure 23 is provided at the light entrance surface 18b and configured to scatter the light. The light reflector 24 is provided at the light exit surface 18c and configured to reflect the light.

Abstract: A supporting unit (11) makes a reflection sheet (41) having a relatively low rigidity sag toward the side surface (13S) of a base section (13) by supporting the reflection sheet (41) on a hem section (15), and at the same time, supports a diffusion sheet (43) having a relatively high rigidity on the leading edge of a shaft section (12).

Abstract: A light guide of the present invention is excellent in luminance uniformity and can have a reduction in the number of components and a reduction in production cost. The light guide of the present invention includes a main body of a light guide plate having a light incident plane and a light exit plane, and a distance maintaining section (10) for maintaining a distance between the light exit plane and an optical member for receiving light emitted from the light exit plane, the distance maintaining section (10) being provided on the light exit plane, the optical member being placed to face the light exit plane, and the distance maintaining section (10) (i) extends from the light exit plane to the optical member, (ii) has a length of not less than 0.3 mm but not more than 50 mm in a direction in which the light exit plane and the optical member are connected to each other via the distance maintaining section (10), and (iii) is provided integral with the main body of the light guide plate.

Abstract: A backlight unit 12 includes an LED 16 and a light guide plate 18. The LED 16 has light emitting surfaces 16d, 16e. The light guide plate 18 has light entrance surfaces 18b, 18c and a light exit surface 18d. The light entrance surfaces 18b, 18c are provided to face the light emitting surfaces 16d, 16e respectively and rays of light emitted from the light emitting surfaces 16d, 16e enter the light entrance surfaces 18b, 18c. The rays of light entering the light entrance surfaces 18b, 18c exit from the light exit surface 18d. The light emitting surfaces 16d, 16e include a first light emitting surface 16d substantially parallel to the light exit surface 18d and second light emitting surfaces 16e. A plane on the first light emitting surface 16d crosses a plane on each second light emitting surface 16e.

Abstract: A lighting device includes an LED 16 and a light guide plate 18 that are fixed to a surface 51 of an LED board 17. The light guide plate 18 includes a light entrance surface 34 that is provided in an LED holding space 33 holding the LED 16 therein, a scattering surface 37 that is formed by performing perforation processing, and a light exit surface 36 through which light exits to outside of the light guide plate 18 after traveling through the light guide plate 18 and reflecting off the scattering surface 37. The LED holding space 33 is formed such that the light guide plate 18 has an opening for the LED holding space 33 and an opening size of the opening increases in a direction P1 in which a lower mold 47B integrally including a projection 47C for forming the LED holding space 33 is removed.

Abstract: A backlight unit 12 includes LEDs 15, light guide plates 18, reflection sheets 24, LED boards 17 and reflection parts 47. Each light guide plate 18 has a light entrance surface 34 and a light exit surface 36. The light entrance surface 34 is arranged so as to face the corresponding LED 16 via a gap C. Light from the LED 16 enters the light entrance surface. The light exit surface 36 is arranged parallel to an arrangement direction in which the LED 16 and the light entrance surface 34 are arranged. The light exits from the light exit surface. Each reflection sheet 24 is arranged on an opposite surface of the corresponding light guide plate 18 from the light exit surface and configured to reflect light toward the light exit surface 36. Each LED board 17 is arranged so as to face the corresponding reflection sheet 24. The LEDs 16 and the light guide plates 18 are mounted to the respective LED boards 17.

Abstract: A backlight unit 12 includes light guide members 18. Each light guide member 18 is configured such that a maximum amount of light exits an area of a light exit portion 31 located more to the front end than the middle of an area between an end of the light exit portion located adjacent to a light guide portion 32 and the front end of the light exit portion 31 when a distribution of the amount of outgoing light is measured. With this configuration, a uniformity of in-plane brightness can be further improved.

Abstract: A backlight unit 12 includes LEDs 16, light guide plates 18, an air layer AR and a scattering structures. Each light guide plate 18 has a light entrance surface 34 and a light exit surface 36. The light entrance surface 34 faces the corresponding LED 16 and light from the LED 16 enters through the light entrance surface 34. The light exit surface 36 through which light exits is arranged along an arrangement direction in which the LED 16 and the light entrance surface 34 are arranged. The light guide plates 18 are arranged in a parallel layout so as to be parallel to the light exit surface 36 and perpendicular to the arrangement direction. The air layer AR is provided between the adjacent light guide plates 18 and has a refraction index lower than that of the light guide plates 18. The scattering structures are provided in side-edge surfaces 31a that are interfaces between the light guide plates 18 and the air layer AR. The scattering structures are configured to scatter light inside the light guide plates 18.

Abstract: The present invention relates to a lighting device including a plurality of light source units U including at least LEDs 16 and light guide plates 18. The light source units U are arranged in one direction such that gaps S are provided between the adjacent light guide plates 18. Each light guide plate 18 has a first light exit surface 36A. The light guide plate 18 receives light from the LED 16. Light L1 exits from the first light exit surface 36A. A diffuser 15b that receives the light L1 from the first light exit surface 36A is disposed so as to face the first light exit surface 36A. Reflection sheets 24 that reflect light are disposed on an opposite side from the diffuser 15b so as to cover the gaps S. Each light guide plate 18 has a second light exit surface 36B in an edge portion that faces the gap S on the opposite side from the diffuser 15b.

Abstract: The invention has an object of exerting favorable NOx reducing effects even at an exhaust temperature lower than in the prior art without trouble, e.g., at startup after long-term engine rest and is directed to an exhaust emission control device wherein a selective reduction catalyst 5 capable of selectively reacting NOx with ammonia even in the presence of oxygen is incorporated in an exhaust pipe 4, urea water 6 as reducing agent being added in the pipe 4 upstream of the reduction catalyst 5 to depurate NOx through reduction.