Abstract: A through hole penetrating in a vertical direction and a slot which is separated from the through hole in the direction along the sheet surface and is long in a separating direction are provided on a light reflection sheet supported on a support body supporting a light source for reflecting light emitted from the light source, and there are provided a first shaft member fitted in the through hole for setting a position of the light reflection sheet with respect to the support body, and a second shaft member fitted in the slot to enable a relative movement in a longitudinal direction of the slot for setting the position of the light reflection sheet with respect to the support body.

Abstract: Disclosed is a display apparatus, in which a rectangular frame covering a peripheral part of a display unit is divided into four frame members, and when the end portions of the adjacent frame members are connected by connectors at the four corners of a rectangle, the frame members and the connector may be coupled with high positioning accuracy of the frame members and the connector. The connector includes two positioning parts which abut against the respective frame members and to be connected to position the frame members in a respective longitudinal direction thereof, and the frame members and includes a part to be positioned which abuts against the positioning part of the connector, and coupling means and are formed to couple the frame members and with the connector.

Abstract: The present invention prevents heat from flowing into an optical sheet or the like and minimizes positional displacement of an optical sheet when placed in an upright laying. A liquid crystal display device is provided with an optical sheet and a resin-made chassis that forms an air layer between the optical sheet and a light guide plate. The resin-made chassis has formed thereon a plurality of ribs that engage with a plurality of holes in the optical sheet. The plurality of holes includes a first hole that is formed in the center of the upper long side of the optical sheet, a second hole that is formed in the center of the lower long side of the optical sheet, and a third hole that is formed along both of the short sides of the optical sheet.

Abstract: It is to provide a reflection sheet, light source device and display device, not only for uniforming the luminance of light emitted from a light source, but also for utilizing a single sheet material to form the reflection sheet having a frame portion that continues to all rims of a flat portion. The reflection sheet is provided with a flat portion that is formed in a substantially square shape, and a frame portion that is folded at a first fold formed on a rim of the flat portion. It is formed in a case shape. It is provided with three second folds divergent from a corner of the flat portion to a rim of a corner on the frame portion, between each corner of the flat portion and the rim of the corner on the frame portion. No gap and step are generated on the corner.

Abstract: Concave marks indicative of an orientation of a circuit board are formed on the circuit board, convex indices to be engaged with the marks are formed in a position in which the circuit is to be attached. An operator confirms the orientation of the circuit board easily and accurately by visually recognizing the marks and touching the marks with a finger. Moreover, the operator positions the circuit board by engaging the marks with the indices.

Abstract: A light source device includes a circuit board having a light-emitting element mounted on a one surface; a support body positioned on the other surface side of the circuit board for supporting the circuit board; a rivet having a head portion, which is positioned on a side of the one surface of the circuit board and cannot be inserted into a first through hole provided on the circuit board and the support body, and a shaft portion having a tip side stopped and held on the support body in a penetration via the first through hole; and a reflection sheet arranged on the one surface of the circuit board for reflecting light. The light source device provides a second through hole having a diameter larger or smaller than the diameter of the head portion at the position corresponding to the head portion on the reflection sheet.

Abstract: A light source device includes a circuit board having a light-emitting element mounted on a one surface; a support body positioned on the other surface side of the circuit board for supporting the circuit board; a rivet having a head portion, which is positioned on a side of the one surface of the circuit board and cannot be inserted into a first through hole provided on the circuit board and the support body, and a shaft portion having a tip side stopped and held on the support body in a penetration via the first through hole; and a reflection sheet arranged on the one surface of the circuit board for reflecting light. The light source device provides a second through hole having a diameter larger or smaller than the diameter of the head portion at the position corresponding to the head portion on the reflection sheet.

Abstract: There are provided a light source device and a display device which do not generate a wrinkle on an optical sheet even if the optical sheet is held on an LED substrate. A reflection sheet is disposed between each of head portions possessed by a rivet, a positioning rivet and a support rivet and one surface of an LED substrate where an LED is mounted, and a gap in a direction of a sheet thickness is provided between the head portion of each of the rivets and the reflection sheet. In the case in which a sudden thermal change is caused, therefore, the reflection sheet expands or contracts between the head portion of each of the rivets and the reflection sheet so that the wrinkle can be prevented from being generated over the reflection sheet.

Abstract: Disclosed is a display apparatus, in which a rectangular frame covering a peripheral part of a display unit is divided into four frame members, and when the end portions of the adjacent frame members are connected by connectors at the four corners of a rectangle, the frame members and the connector may be coupled with high positioning accuracy of the frame members and the connector. The connector includes two positioning parts which abut against the respective frame members and to be connected to position the frame members in a respective longitudinal direction thereof, and the frame members and includes a part to be positioned which abuts against the positioning part of the connector, and coupling means and are formed to couple the frame members and with the connector.

Abstract: There are provided a light source device and a display device which do not generate a wrinkle on an optical sheet even if the optical sheet is held on an LED substrate. A reflection sheet is disposed between each of head portions possessed by a rivet, a positioning rivet and a support rivet and one surface of an LED substrate where an LED is mounted, and a gap in a direction of a sheet thickness is provided between the head portion of each of the rivets and the reflection sheet. In the case in which a sudden thermal change is caused, therefore, the reflection sheet expands or contracts between the head portion of each of the rivets and the reflection sheet so that the wrinkle can be prevented from being generated over the reflection sheet.

Abstract: A light source device includes a circuit board having a light-emitting element mounted on a one surface; a support body positioned on the other surface side of the circuit board for supporting the circuit board; a rivet having a head portion, which is positioned on a side of the one surface of the circuit board and cannot be inserted into a first through hole provided on the circuit board and the support body, and a shaft portion having a tip side stopped and held on the support body in a penetration via the first through hole; and a reflection sheet arranged on the one surface of the circuit board for reflecting light. The light source device provides a second through hole having a diameter larger or smaller than the diameter of the head portion at the position corresponding to the head portion on the reflection sheet.

Abstract: A light source device which can prevent a stress from being generated on each of circuit boards when connected through a connector and fixed to a support body through a fixture, is provided. There are provided a plurality of circuit boards 2 having a light-emitting element 1 mounted on a one surface 2a and disposed apart from each other with a planar direction aligned, a support body 6 positioned on the other surface side of the circuit boards 2 for supporting the circuit boards, and a connector 5 for electrically connecting the adjacent circuit boards 2 to each other. Inserting holes 2c and 2d for inserting a fixture 8 for fixing the circuit boards 2 to the support body 6 are formed on the circuit boards 2 apart from each other, and a dimension of the inserting hole 2c is smaller than that of the other inserting hole 2d.

Abstract: It is to provide a reflection sheet, light source device and display device, not only for uniforming the luminance of light emitted from a light source, but also for utilizing a single sheet material to form the reflection sheet having a frame portion that continues to all rims of a flat portion. The reflection sheet is provided with a flat portion that is formed in a substantially square shape, and a frame portion that is folded at a first fold formed on a rim of the flat portion. It is formed in a case shape. It is provided with three second folds divergent from a corner of the flat portion to a rim of a corner on the frame portion, between each corner of the flat portion and the rim of the corner on the frame portion. No gap and step are generated on the corner.

Abstract: Concave marks indicative of an orientation of a circuit board are formed on the circuit board, convex indices to be engaged with the marks are formed in a position in which the circuit is to be attached. An operator confirms the orientation of the circuit board easily and accurately by visually recognizing the marks and touching the marks with a finger. Moreover, the operator positions the circuit board by engaging the marks with the indices.

Abstract: There are provided a plurality of circuit boards having a light-emitting element mounted on a one surface and disposed apart from each other with a planar direction aligned, a support body positioned on the other surface side of the circuit boards for supporting the circuit boards, and a connector for electrically connecting the adjacent circuit boards to each other. Inserting holes for inserting a fixture for fixing the circuit boards to the support body are formed on the circuit boards apart from each other, and a dimension of the inserting hole is smaller than that of the other inserting hole.

Abstract: There are provided a light source device and a display device which do not generate a wrinkle on an optical sheet even if the optical sheet is held on an LED substrate. A reflection sheet is disposed between each of head portions possessed by a rivet, a positioning rivet and a support rivet and one surface of an LED substrate where an LED is mounted, and a gap in a direction of a sheet thickness is provided between the head portion of each of the rivets and the reflection sheet. In the case in which a sudden thermal change is caused, therefore, the reflection sheet expands or contracts between the head portion of each of the rivets and the reflection sheet so that the wrinkle can be prevented from being generated over the reflection sheet.

Abstract: A through hole penetrating in a vertical direction and a slot which is separated from the through hole in the direction along the sheet surface and is long in a separating direction are provided on a light reflection sheet supported on a support body supporting a light source for reflecting light emitted from the light source, and there are provided a first shaft member fitted in the through hole for setting a position of the light reflection sheet with respect to the support body, and a second shaft member fitted in the slot to enable a relative movement in a longitudinal direction of the slot for setting the position of the light reflection sheet with respect to the support body.