Abstract: Provided are a light source device capable of uniformly illuminating, a display apparatus, and a method of manufacturing the light source device. Since a reflection sheet is adhered to a light guide plate through an adhesive layer, deflection thereof is suppressed. Since dot parts are filled in openings of an optical layer, it would be difficult for the dot parts to be distorted by an outer force. In addition, since the dot parts are formed by forming the optical layer and the adhesive layer in a large area in which an occurrence of distortion during forming is minimal, it would be difficult for the dot parts to be distorted during forming the same. Therefore, an occurrence of luminance unevenness caused by the deflection of the reflection sheet or the distortion of the dot parts may be suppressed. From the above result, it is possible to uniformly illuminate by the light source device.

Abstract: Provided are a light source device which may disperse a force shifted in a plane direction due to a difference in thermal expansion by a reflection sheet so as to maintain good display quality, and a display apparatus using the light source device. The light source device includes a transparent plate used as a light guide plate, a light source disposed to face a part of a peripheral surface of the transparent plate along the part thereof, and a reflection sheet attached to one wide surface of the transparent plate, and the reflection sheet is provided with a plurality of cut lines formed in a prescribed range including a center thereof at a prescribed interval. Thereby, even if the transparent plate and the reflection sheet are thermally expanded in relation to the different expansion coefficients from each other, it is possible to prevent the reflection sheet from being peeled off from the transparent plate.

Abstract: A prism sheet having a function for preventing damage while assuring light collecting performance, and a liquid crystal display employing it. The prism sheet (6) has a first major surface on which light from a light source impinges, and a second major surface from which the incident light exits. A plurality of first prism rows (6a) having triangular cross-section are formed in parallel on the second major surface. A plurality of second prism rows (6b) having a round top and higher than the first prism rows (6a) are also provided on the second major surface.

Abstract: In one embodiment of the present invention, a method is disclosed for driving a display device by which display of a moving image with natural movement is achieved while occurrence of flicker is minimized or prevented. The method for driving a display device includes a display screen where pixels are arranged in a matrix includes inputting image signals for one frame into the display device at established intervals, writing a gray level in accordance with the signal in each of the pixels, and displaying an image on the screen, wherein interpolation is performed between a first gray level of each of the pixels in accordance with an image signal inputted in a given frame, and a second gray level of each of the pixels in accordance with an image signal inputted in a next frame, whereby the gray level of each of the pixels continuously changes from the first gray level to the second gray level.

Abstract: Disclosed is a lamp holding tool provided with lamp holding sections arranged in a same direction at fixed intervals, and flat-board like connecting sections whereupon the lamp holding sections are fixed. The lamp holding section has a shape which can abut to the lamp on different parts depending on relative angles to the lamp. As for the lamp holding sections, a distance between the lamps is changed by an angle formed by the arrangement direction of the lamp holding sections and the axis direction of the lamps.

Abstract: A backlight device capable of preventing or reducing, even when an optical sheet bends, occurrence of luminance nonuniformity and/or shades due to the bend. The backlight device 1 controls the properties of light emitted by a light source 12 using two upper and lower diffusion sheets 16, 20 and a lens sheet 18 placed between the diffusion sheets and illuminates the back side of a display panel with the light, in which a space 24 for expansion is provided between the lens sheet 18 and the upper diffusion sheet 20, the space for expansion accommodating a bend of the lens sheet 18 which is caused by expansion due to heat from the light source 12.

Abstract: A lighting device for a display device, according to the present invention, includes a plurality of tubular light sources 17 arranged parallel to one another, and a light reflecting plate 14 arranged on the side of the tubular light sources 17 that corresponds to the opposite side of the light emitting side. The tubular light sources 17 on an inner side of the array are arranged at narrower intervals, than those on an outer side of the array. A plurality of angled reflective portions 40 are provided on the light reflecting plate 14, so that each of the angled reflective portions is positioned between adjacent tubular light sources 17 and extends along the longitudinal direction of the tubular light sources 17. Each angled reflective portion 40 includes two inclined surfaces 41, 42, which face the adjacent tubular light sources 17, respectively.

Abstract: A backlight unit 12 includes cold cathode tubes 18, a chassis 14 and connectors 22. Each cold cathode tube 18 has outer leads 18b at ends. The chassis 14 houses the cold cathode tubes 18. The connectors 22 are mounted to the chassis 14, connected to the outer leads 18b and configured to be movable relative to the chassis 14 in axial directions of the cold cathode tubes 18. When the cold cathode tubes 18 move relative to the chassis 14, the connectors 22 can move relative to the chassis 14 in the same directions. Therefore, frictions are less likely to occur in contact areas between the outer leads 18b of each cold cathode tube 18 and the respective connectors 22 and thus abnormal sounds or abrasions are less likely to occur.

Abstract: In an illuminating device (3) provided with a cold cathode fluorescent tube (linear light source) (20), a chassis (12) that houses the cold cathode fluorescent tube (20), a diffusion plate (15) that diffuses light from the cold cathode fluorescent tube (20), and a diffusion plate supporter (21) that is provided in the chassis (12) to support the diffusion plate (15), the diffusion plate supporter (21) includes: a substrate (21a) that is configured to be capable of being deformed elastically in response to changes in ambient temperature; an attachment portion (21c) that is provided on one (21a1) of opposed surface sides of the substrate (21a) and attaches the substrate (21a) to the chassis (12); and a support portion (21b) that is located on the other (21a2) of the opposed surface sides of the substrate (21a) so as to come into contact with the diffusion plate (15).

Abstract: A valve holding portion including a pair of elastic deformation portions which is arranged opposite each other, whose gap is elastically opened and which sandwiches the valve and a feed portion that is coupled to at least one of the elastic deformation portions and that feeds electric power to the lead wire are included. The feed portion includes a lead contact portion formed such that, when the pair of elastic deformation portions holds the valve, comes into contact with the lead wire.

Abstract: Disclosed is a lamp holding tool provided with lamp holding sections arranged in a same direction at fixed intervals, and flat-board like connecting sections whereupon the lamp holding sections are fixed. The lamp holding section has a shape which can abut to the lamp on different parts depending on relative angles to the lamp. As for the lamp holding sections, a distance between the lamps is changed by an angle formed by the arrangement direction of the lamp holding sections and the axis direction of the lamps.

Abstract: A prism sheet having a function for preventing damage while assuring light collecting performance, and a liquid crystal display employing it. The prism sheet (6) has a first major surface on which light from a light source impinges, and a second major surface from which the incident light exits. A plurality of first prism rows (6a) having triangular cross-section are formed in parallel on the second major surface. A plurality of second prism rows (6b) having a round top and higher than the first prism rows (6a) are also provided on the second major surface.

Abstract: A lighting device for a display device, according to the present invention, includes a plurality of tubular light sources 17 arranged parallel to one another, and a light reflecting plate 14 arranged on the side of the tubular light sources 17 that corresponds to the opposite side of the light emitting side. The tubular light sources 17 on an inner side of the array are arranged at narrower intervals, than those on an outer side of the array. A plurality of angled reflective portions 40 are provided on the light reflecting plate 14, so that each of the angled reflective portions is positioned between adjacent tubular light sources 17 and extends along the longitudinal direction of the tubular light sources 17. Each angled reflective portion 40 includes two inclined surfaces 41, 42, which face the adjacent tubular light sources 17, respectively.

Abstract: A backlight device capable of preventing or reducing, even when an optical sheet bends, occurrence of luminance nonuniformity and/or shades due to the bend. The backlight device 1 controls the properties of light emitted by a light source 12 using two upper and lower diffusion sheets 16, 20 and a lens sheet 18 placed between the diffusion sheets and illuminates the back side of a display panel with the light, in which a space 24 for expansion is provided between the lens sheet 18 and the upper diffusion sheet 20, the space for expansion accommodating a bend of the lens sheet 18 which is caused by expansion due to heat from the light source 12.

Abstract: An optical component is used in a lighting device for a display device. The optical component includes a translucent plate-shaped body. The plate-shaped body has a plurality of air holes arranged to distribute air in the plate-thickness direction of the plate-shaped body, and the air holes providing a light scattering structure arranged to scatter light.

Abstract: In one embodiment of the present invention, a method is disclosed for driving a display device by which display of a moving image with natural movement is achieved while occurrence of flicker is minimized or prevented. The method for driving a display device includes a display screen where pixels are arranged in a matrix includes inputting image signals for one frame into the display device at established intervals, writing a gray level in accordance with the signal in each of the pixels, and displaying an image on the screen, wherein interpolation is performed between a first gray level of each of the pixels in accordance with an image signal inputted in a given frame, and a second gray level of each of the pixels in accordance with an image signal inputted in a next frame, whereby the gray level of each of the pixels continuously changes from the first gray level to the second gray level.