Abstract: An illumination device includes: a light source; a light guide plate, at least one side face thereof being a light-entering face where light from the light source enters and one surface thereof being a light-exiting surface where light from the light source exits; and a frame-shaped member having a frame shape and including a pressing portion extending inwardly in a plan view and pressing an edge of the light-exiting surface of the light guide plate from above in a side view, an end face of the pressing portion facing inwardly and being exposed to the light-exiting surface thereunder, wherein at least part of the end face of the pressing portion has light-reflecting characteristics and has an inclined surface directed towards the light-exiting surface.

Abstract: A backlight device (a lighting device) 12 includes LEDs (a light source) 17, a light guide plate 16, a chassis 14, LED boards 18, and heat dissipation members 19. The light guide plate 16 includes an end surface that is opposite the LEDs 17 and configured as a light entrance surface 16b through which light from the LEDs 17 enters. One of the plate surfaces of the light guide plate 16 is configured as a light exit surface 16a through which the light exits. The chassis 14 supports another plate surface 16c of the light guide plate 16 opposite from the light exit surface 16a. Each LED board 18 includes a bottom plate 18b that extends parallel to at least the other plate surface 16c of the light guide plate 16. Each heat dissipation member 19 extends parallel to a plate surface 18b1 of the bottom plate 18b and is in surface contact with the plate surface 18b1 of the bottom plate 18b.

Abstract: A backlight device 12 includes LEDs 17, a light guide plate 16, a chassis 14, and a light source mounting member 30. The light guide plate 16 included a front surface configured as a light exit surface 16a, a rear surface configured as an opposite surface 16c, and two side surfaces configured as light entrance surface 16b. The light guide plate 16 is arranged such that the light entrance surface 16b are opposite light emitting surfaces 17a of the LEDs 17 and configured to guide light from the LEDs 17 toward the light exit surface 16a. The chassis 14 includes a plate-like portion 14a arranged on an opposite surface 16c side of the light guide plate 16. The light source mounting member 30 on which the LEDs 17 are mounted includes at least one bottom plate 30a including a front surface and a rear surface. The front surface is in surface-contact with a rear surface of the plate-like portion 14a. At least one portion of the rear plate surface is exposed to an external side.

Abstract: An illumination device includes: a light source; a light guide plate, at least one side face thereof being a light-entering face where light from the light source enters and one surface thereof being a light-exiting surface where light from the light source exits; and a frame-shaped member having a frame shape and including a pressing portion extending inwardly in a plan view and pressing an edge of the light-exiting surface of the light guide plate from above in a side view, an end face of the pressing portion facing inwardly and being exposed to the light-exiting surface thereunder, wherein at least part of the end face of the pressing portion has light-reflecting characteristics and has an inclined surface directed towards the light-exiting surface.

Abstract: A liquid crystal display device (10) related to the present invention is provided with an LED (17); a heat-dissipating member (19) mounted with the LED (17); a liquid crystal panel (11) that uses light from the LED (17) to display; a light guide plate (16) that is disposed on a side of the liquid crystal panel (11) opposite to the display surface (11a), the light guide plate being disposed such that an end surface thereof faces the LED (17); a chassis (14) arranged on a side of the light guide plate (16) opposite to the liquid crystal panel (11); a frame (13) that is arranged on the display surface (11a) of the liquid crystal panel (11), the frame holding the liquid crystal panel (11) and the light guide plate (16) by sandwiching the liquid crystal panel (11) and the light guide plate (16) with the chassis (14) while housing the LED (17) and the heat-dissipating member (19) therein, the frame constituting the exterior of the liquid crystal display device (10); and a protruding member (21) that protrudes from

Abstract: A backlight device 12 includes LEDs 17, a light guide plate 16, a chassis 14, and a light source mounting member 30. The light guide plate 16 included a front surface configured as a light exit surface 16a, a rear surface configured as an opposite surface 16c, and two side surfaces configured as light entrance surface 16b. The light guide plate 16 is arranged such that the light entrance surface 16b are opposite light emitting surfaces 17a of the LEDs 17 and configured to guide light from the LEDs 17 toward the light exit surface 16a. The chassis 14 includes a plate-like portion 14a arranged on an opposite surface 16c side of the light guide plate 16. The light source mounting member 30 on which the LEDs 17 are mounted includes at least one bottom plate 30a including a front surface and a rear surface. The front surface is in surface-contact with a rear surface of the plate-like portion 14a. At least one portion of the rear plate surface is exposed to an external side.

Abstract: A backlight device (a lighting device) 12 includes LEDs (a light source) 17, a light guide plate 16, a chassis 14, LED boards 18, and heat dissipation members 19. The light guide plate 16 includes an end surface that is opposite the LEDs 17 and configured as a light entrance surface 16b through which light from the LEDs 17 enters. One of the plate surfaces of the light guide plate 16 is configured as a light exit surface 16a through which the light exits. The chassis 14 supports another plate surface 16c of the light guide plate 16 opposite from the light exit surface 16a. Each LED board 18 includes a bottom plate 18b that extends parallel to at least the other plate surface 16c of the light guide plate 16. Each heat dissipation member 19 extends parallel to a plate surface 18b1 of the bottom plate 18b and is in surface contact with the plate surface 18b1 of the bottom plate 18b.

Abstract: A liquid crystal display device (10) related to the present invention is provided with an LED (17); a heat-dissipating member (19) mounted with the LED (17); a liquid crystal panel (11) that uses light from the LED (17) to display; a light guide plate (16) that is disposed on a side of the liquid crystal panel (11) opposite to the display surface (11a), the light guide plate being disposed such that an end surface thereof faces the LED (17); a chassis (14) arranged on a side of the light guide plate (16) opposite to the liquid crystal panel (11); a frame (13) that is arranged on the display surface (11a) of the liquid crystal panel (11), the frame holding the liquid crystal panel (11) and the light guide plate (16) by sandwiching the liquid crystal panel (11) and the light guide plate (16) with the chassis (14) while housing the LED (17) and the heat-dissipating member (19) therein, the frame constituting the exterior of the liquid crystal display device (10); and a protruding member (21) that protrudes from

Abstract: A backlight device 12 includes cold cathode tubes 17, a chassis that houses the cold cathode tubes 17 therein and having an opening 14b through which light emitted from the cold cathode tubes exits, and a diffuser plate 15 provided so as to face the cold cathode tubes 17 and cover the opening 14b. A light reflecting portion 30 is formed on a side of the diffuser plate 15 close to the cold cathode tubes 17 so as to have different light reflectance in every surface area of a surface of the diffuser plate 15. A scattering structure 31 is formed on a side of the diffuser plate 15 opposite from the cold cathode tubes 17 and scatters the light.

Abstract: An object of the present invention is to realize the suppression of uneven brightness at low cost in a lighting device. A backlight unit 12 according to the present invention includes: LEDs 17 as a light source; a chassis 14 including a bottom plate 14a disposed on a side opposite to a light output side with respect to the LEDs 17 and housing the LEDs 17; and a first reflection sheet 22 reflecting light including a square-shaped bottom portion 24 disposed along the bottom plate 14a, and at least two rising portions 25 and 26 rising from at least two adjacent sides of the bottom portion 24 toward the light output side such that a seam J is formed between adjacent side edges 25a and 26a. An overhang portion 28 is formed on the side edge 25a of the first rising portion 25 of the at least two rising portions 25 and 26. The overhang portion 28 overhangs beyond the seam J in a direction from the bottom portion 24 to the second rising portion 26.

Abstract: An object of the present invention is to realize the suppression of uneven brightness at low cost in a lighting device. A backlight unit 12 according to the present invention includes: LEDs 17 as a light source; a chassis 14 including a bottom plate 14a disposed on a side opposite to a light output side with respect to the LEDs 17 and housing the LEDs 17; and a first reflection sheet 22 reflecting light including a square-shaped bottom portion 24 disposed along the bottom plate 14a, and at least two rising portions 25 and 26 rising from at least two adjacent sides of the bottom portion 24 toward the light output side such that a seam J is formed between adjacent side edges 25a and 26a. An overhang portion 28 is formed on the side edge 25a of the first rising portion 25 of the at least two rising portions 25 and 26. The overhang portion 28 overhangs beyond the seam J in a direction from the bottom portion 24 to the second rising portion 26.

Abstract: A backlight unit includes a chassis including a bottom plate and side plates rising toward a front side with an opening on a front side, LEDs housed in the chassis, an optical member arranged on an opening side of the chassis and through which light from the LED passes, a reflection member including inclined surfaces configured to lead the light from the LED toward the optical member, and a support pin attached to the bottom plate of the chassis and extending from an LED mounting surface toward the optical member such that a tip end of the support pin is in contact with the optical member to support it. The support pin is arranged between the LEDs and equally away from each of the LEDs.

Abstract: A method of observing a cross-section of a cosmetic material includes a sample forming step of forming a sample by providing a cosmetic material on a sample holder; a freezing step of freezing the sample; a cutting step of forming a cut surface on the sample by processing the frozen sample by a focused ion beam; and a cut surface image processing step of obtaining a cut surface image of the cut surface using a scanning electron microscope.

Abstract: Provided is an illumination device wherein the occurrence of noise can be suppressed while the occurrence of uneven brightness is suppressed. The illumination device is comprised of a back chassis (5) in which a light emitting module (6) is contained, a diffusion plate (8), and a supporting member (10). The supporting member (10) has a pair of end portions, and contains a linear element (10a) papered toward the diffusion plate (8). The pair of end portions of the linear element (10a) are attached to the back chassis (5), and the top portion of the linear element (10a) supports the diffusion plate (8).

Abstract: A backlight device 12 includes cold cathode tubes 17, a chassis that houses the cold cathode tubes 17 therein and having an opening 14b through which light emitted from the cold cathode tubes exits, and a diffuser plate 15 provided so as to face the cold cathode tubes 17 and cover the opening 14b. A light reflecting portion 30 is formed on a side of the diffuser plate 15 close to the cold cathode tubes 17 so as to have different light reflectance in every surface area of a surface of the diffuser plate 15. A scattering structure 31 is formed on a side of the diffuser plate 15 opposite from the cold cathode tubes 17 and scatters the light.

Abstract: A backlight (2) of the present invention includes a light source (5), a plurality of light guides (7) and (17) for emitting light emitted from the light source (5), and a reflecting material (6), which is disposed so as to face surfaces of the plurality of light guides (7) and (17) which surfaces are opposite to light emission surfaces (7a) of the plurality of light guides (7) and (17). The light guide (7) and the light guide (17) are adjacent to each other. The reflecting material (6) includes a protruding section (20) having a curved surface in a region on that surface of the reflecting material (6) which faces the light guides (7) and (17), which region corresponds to a region between the light guide (7) and the light guide (17). The arrangement makes it possible to realize an illumination device having further improved uniformity of luminance.

Abstract: A current path for a discharge current leading from ground to a motor is provided when a pulse width modulation (PWM) control is OFF, with a parasitic diode between a P type substrate of an NPN transistor and an N type collector region. A diode with a cathode and an anode connected to a base and an emitter of an NPN transistor is also provided, so that when the PWM control is OFF, a base current is conducted by the diode to the NPN transistor, whereby a current flows from the emitter of the NPN transistor to the collector, providing a current path for the discharge current from the motor to a power terminal.