Abstract: A lighting device 12 of the present invention includes a light source 17, an external power source 21 arranged to supply drive power to the light source 17, and a relay connector 19 arranged to provide an electrical connection between the light source 17 and the external power source 21. The relay connector 19 includes a conductive resin layer 40 and an insulating resin layer 50 arranged on the periphery of the conductive resin layer 40. According to the construction, the conductive portion and the insulating portion of the relay connector 19 are both made of resin, and therefore can be formed by the same process, e.g., by two-shot molding. Further, the number of components can be reduced.

Abstract: It is an object of the present invention to obtain high brightness and high color reproducibility in a liquid crystal display device. A liquid crystal display device 10 according to the present invention includes a liquid crystal panel 11 and a backlight unit 12. The liquid crystal panel 11 includes a pair of substrates 11a and 11b, and a liquid crystal layer 11c. The liquid crystal layer 11C includes liquid crystal between the substrates 11a and 11b. The liquid crystal is a substance having optical characteristics that vary with application of an electric field. The backlight unit 12 includes a light source. The back light unit 12 is configured to irradiate light onto the liquid crystal panel 11. At least one of the substrates 11a and 11b of the liquid crystal panel 11 includes a color filter 19 with a plurality of color sections R, G, B, and Y that exhibit the colors of blue, green, red, and yellow, respectively. The backlight unit 12 includes LEDs 24 as the light source.

Abstract: A multi-layered optical member unit to be contained in a liquid crystal display panel, which comprises, from the light ejection side toward the light reception side, a first refractive layer, a light collection layer, and a reflective polarizing layer.

Abstract: In a lighting device 10, a discharge tube 15 includes a glass tube 34, an electrode 34a, an outer lead 35 and a ferrule 36. The electrode 34a is arranged inside the glass tube 34. The outer lead 35 makes electrical connection between the electrode 34a and an external device. The ferrule 36 has a drum shape so as to be fitted onto the glass tube 34 and makes electrical connection between the outer lead 35 and the terminal 14. The ferrule 36 includes a main body 37, a connecting part 40 and a holding part 50. The main body 37 is fitted onto the glass tube 34. The connecting part 40 extends from the main body 37 and is electrically connected to the outer lead 35. The holding part 50 is separately provided from the connecting part 40 and extends from the main body 37. The holding part 50 holds the outer lead 35 and a relative position of the ferrule 36 to the glass tube 34 is defined with the holding part 50.

Abstract: A lighting device achieves cost reduction and suppression of power consumption with suppressing the occurrence of a lamp image. A lighting device 12 includes: a plurality of linear light sources 17 disposed in parallel; a chassis 14 housing the linear light sources 17 and having an opening 14b through which light from the linear light sources 17 exits; and an optical member 15a facing the linear light sources 17 and disposed to cover the opening 14b. The linear light sources 17 are arranged at relatively small intervals in a light source high-density region LH and arranged at relatively large intervals in a light source low-density region. An optical member 15a includes a light reflection portion 50 configured to reflect light from the linear light sources 17 at least in a portion overlapping with the light source low-density region LL.

Abstract: Indexes indicative of the locations of lamp clips are formed on a chassis where lamps are juxtaposed with different juxtaposition pitches. The lamp clips comprise: plate-like bases; holding portions, which are provided at one face of the bases, for holding the lamps; and markers corresponding to the indexes.

Abstract: It is an object of the present invention to provide a lighting device realizing reduction in cost and suppression of power consumption and suppressing generation of a lamp image. A lighting device 12 of the present invention includes a plurality of point light sources 80; a chassis 14 housing the point light sources 80 and having an opening 14b through which light of the point light sources 80 exits; and an optical member 15 (15a) facing the point light sources 80 and provided to cover the opening 14b. The point light sources 80 are arranged such that a light source high-density area LH where an arrangement interval thereof is relatively small and a light source low-density area LL where an arrangement interval thereof is relatively large are provided. Light reflection portions 24 reflecting light from the point light sources 80 are formed in at least a region overlapping with the light source low-density area LL in the optical member 15 (15a).

Abstract: It is an object of the present invention to provide a light source unit enabling cost reduction. A light source unit of the present invention includes a plurality of LEDs 16, an LED board 17 having a surface on which the plurality of LEDs 16 is arranged, and an elongated reflection sheet 30 provided on the surface of the LED board 17 on which the LEDs are arranged. The reflection sheet 30 has a plurality of light-source-surrounding reflecting portions 31 surrounding the LEDs 16 in a plan view, and a plurality of connecting portions 32 connecting the adjacent light-source-surrounding reflecting portions 31. Each of the connecting portions 32 has a width Y2 narrower than a width Y1 of each of the light-source-surrounding reflecting portions in a short direction of the reflection sheet 30.

Abstract: It is an object of the present invention to provide a lighting device configured to partially adjust illumination brightness at low cost. A lighting device 12 of the present invention comprises a plurality of light source boards 20, and a plurality of point light sources 17 mounted on each of the light source boards 20. The light source boards 20 are arranged parallel to one another at small intervals in a small-interval area 20a and large intervals in a large-interval area 20b.

Abstract: An LED unit U of the present invention includes an LED 17 that is alight source, a diffuser lens 19, a board reflection sheet 23 and a restriction member 27. The diffuser lens 19 is provided to face a light emitting surface 17a of the LED 17. The board reflection sheet 23 is provided to face a surface of the diffuser lens 19 that is closer to the LED 17 and is configured to reflect light. The restriction member 27 projects from the diffuser lens 19 toward the board reflection sheet 23 and restricts positional relationship between the diffuser lens 19 and the board reflection sheet 23.

Abstract: It is an object of the present invention to provide a lighting device realizing cost reduction. A lighting device of the present invention includes a plurality of LEDs 16, an LED board 40 on which the LEDs 16 are mounted, and a chassis 14 to which the LED board 40 is attached. The LED board 40 has a rectangular frame-shape. The LED board 40 includes a first board 40A1 and a second board 40A2 attached to the chassis 14. The second board 40A2 having an outer shape smaller than that of the first board 40A1 may be provided inside the first board 40A1 in a plan view.

Abstract: A backlight unit 12 according to the present invention includes an LED board 18 including an LED 17 as a light source, a chassis 14 that stores the LED board 18 therein and has an opening 14b through which the light from the LED 17 exits, a chassis reflection sheet 22 that is arranged along an inner surface of the chassis 14 and reflects light and a board reflection sheet 23 that overlaps the LED board 18 on the side of the opening 14b in a plan view, is larger than the LED board 18 and reflects light, and the chassis 14 has a first supporting portion 27 supporting the LED board 18 and a second supporting portion 28 that is arranged closer to the opening 14b than the first supporting portion 27 and supports the board reflection sheet 23.

Abstract: The present invention provides a display device that can be provided as a final product such as a television receiver simply by assembling a display panel and a backlight and is excellent in workability in assembling the panel to the backlight while securing a wide effective display region. A display device 100 according to the present invention includes a light source 50, a display panel 11, a first cabinet Ca, and a second cabinet Cb. The display panel 11 is configured to provide display using light from the light source 50. The display panel 11 is attached to the first cabinet Ca. The light source 50 is attached to the second cabinet Cb. The first cabinet Ca and the second cabinet Cb are engaged with each other. The first cabinet Ca and the second cabinet Cb are configured as an outer case that constitutes an exterior of the display device 100.

Abstract: It is an object of the present invention to provide a lighting device realizing improvement in brightness of an intended area such as a center area of an irradiation surface. A lighting device 12 of the present invention includes a light source 17, a chassis 14 housing the light source 17, and an optical member 15a facing the light source 17. The optical member 15a has a light source overlapping portion DA overlapping with a light source arrangement area LA where the light source is arranged, on the chassis 14, and a light source non-overlapping portion DN overlapping with a light source non-arrangement area LN where the light source 17 is not arranged. The light source overlapping portion DA has a surface facing the light source 17, the surface having a light reflectance greater than that of the light source non-overlapping portion DN.

Abstract: It is an object of the present invention to provide a lighting device realizing reduction in cost and suppression of power consumption and suppressing generation of a lamp image. A lighting device 12 of the present invention includes a plurality of point light sources 80; a chassis 14 housing the point light sources 80 and having an opening 14b through which light from the point light sources 80 exits; and an optical member 15 (15a) facing the point light sources 80 and provided to cover the opening 14b. The point light sources 80 are arranged such that a light source high-density area LH where an arrangement interval thereof is relatively small and a light source low-density area LL where an arrangement interval thereof is relatively large are provided. Light reflection portions 50 reflecting lights from the point light sources 80 are formed in at least a region overlapping with the light source low-density area LL in the optical member 15 (15a).

Abstract: The backlight unit (49) of a display device (69) having a liquid crystal display panel (59) is provided with a chassis (41), a diffuser plate (43) supported by means of the chassis, and a light source which irradiates the diffuser plate (43) with light. In the light source, a plurality of light emitting modules (MJ), each of which includes an LED (22), a diffusing lens (24) covering the LED, and a built-in reflecting sheet (11) disposed between a mounting substrate (21) and the diffusing lens, are disposed in matrix on the chassis which supports the diffuser plate. The built-in reflecting sheet has a light reflection ratio higher than that of the mounting substrate.

Abstract: An object of the present invention is to suppress deformation of a reflection member. A backlight unit 12 according to the present invention includes a light source board 18, a chassis 14, and a reflection sheet 21. The light source board 18 includes an LED 17 as a light source. The chassis 14 stores the light source board 18 therein and has an opening 14b through which light from the LED 17 exits. The reflection sheet 21 that is a reflection member configured to reflect light and arranged on the opening 14b side so as to overlap the light source board 18 in a plan view. The reflection sheet 21 is larger than the light source board 18. The chassis 14 has a first supporting portion 28 and a second supporting portion 29. The first supporting portion 28 supports the light source board 18. The second supporting portion 29 is arranged closer to the opening 14b than the first supporting portion 28, and supports a first reflection sheet 22 included in the reflection sheet 21.

Abstract: The present invention provides a display device that can be provided as a final product such as a television receiver simply by assembling a display panel and a backlight and is excellent in workability in assembling the display panel to the backlight while securing a wide effective display region. The display device according to the present invention includes an LED 52, an LED board 51 on which the LED 52 is mounted, a liquid crystal panel 11, a first cabinet Ca, a second cabinet Cb, and a reflection sheet 60. The liquid crystal panel 11 is configured to provide display using light from the LED 52. The liquid crystal panel 11 is attached to the first cabinet Ca. The LED board 51 is attached to the second cabinet Cb. The reflection sheet 60 is configured to reflect the light from the LED 52. The first cabinet Ca and the second cabinet Cb are engaged with each other and configured as an outer case that forms an exterior of a liquid crystal display device 10.

Abstract: It is an object of the present invention to provide a lighting device that can attain a reduction in thickness. A lighting device according to the present invention includes a hot-cathode tube 50, a circuit board 80, and a second cabinet Cb. The circuit board 80 is configured to supply electric power to the hot-cathode tube 50. The second cabinet Cb has a rectangular shape in plan view and houses the hot-cathode tube 50 and the circuit board 80. The hot-cathode tube 50 is arranged in a center area of the second cabinet Cb with respect to a longer-side direction or a shorter-side direction of the second cabinet Cb to form a board housing section 30b. The board housing section 30b houses the circuit board 80. The board housing section 30b is provided in at least one of outer areas each located on either side of the center area with respect to the longer-side direction or the shorter-side direction in the second cabinet Cb.

Abstract: It is an object of the present invention to provide a display device that can be provided as a final product such as a television receiver simply by assembling a display panel and a backlight and can prevent or suppress scratches due to swing or the like of an optical member. A display device 100 of the present invention includes a first cabinet Ca to which a display panel 11 is attached and a second cabinet Cb to which a light source 50 is attached. The first cabinet Ca and the second cabinet Cb are assembled with an optical member 20, which diffuses light from the light source 50, held between the cabinets. The optical member 20 includes a first optical member 22 having relatively large weight and a second optical member 21 having relatively small weight. The first optical member 22 is pressed by the top of a projection 14a (38a) provided in at least one of the first cabinet Ca and the second cabinet Cb.