WO2018155065A1 - Display device and television receiver - Google Patents

Display device and television receiver Download PDF

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Publication number
WO2018155065A1
WO2018155065A1 PCT/JP2018/002346 JP2018002346W WO2018155065A1 WO 2018155065 A1 WO2018155065 A1 WO 2018155065A1 JP 2018002346 W JP2018002346 W JP 2018002346W WO 2018155065 A1 WO2018155065 A1 WO 2018155065A1
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WO
WIPO (PCT)
Prior art keywords
display device
light guide
light
display
elastic member
Prior art date
Application number
PCT/JP2018/002346
Other languages
French (fr)
Japanese (ja)
Inventor
巧 新名
清水　治
直哉 甘利
Original Assignee
シャープ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2018155065A1 publication Critical patent/WO2018155065A1/en

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/18—Edge-illuminated signs
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers

Definitions

  • the present invention relates to a display device and a television receiver.
  • Display devices including a display unit that displays an image on the front are used in devices such as television receivers and personal computers. There may be a case where an indicator portion indicating the operation state of the display device or a device including the display device is arranged on the peripheral portion of the display surface.
  • the indicator unit included in the notebook personal computer of Patent Document 1 receives light from the light emitting unit (LED) located at the lower part of the display surface and the light receiving surface, and emits light from the light emitting surface.
  • the indicator unit displays an operating state such as a power-on state and a charging state of the notebook personal computer by light emitted from the light guide.
  • the emitted light from the light guide in the indicator portion transmits the operating state of the display device to the user, it is not interlocked with the image displayed on the front surface, and there is no sense of unity.
  • the emitted light from the light guide is interlocked with the image, the emitted light may reduce the quality of the image.
  • the present invention has been made in view of such circumstances, and an object of the present invention is to provide a display device and a television receiver that can prevent deterioration in image quality due to light emitted from a light guide. It is in.
  • a display device includes a display unit that displays an image on a front surface, a first surface that extends forward with respect to the front surface, continuous to the first surface, and along the front surface.
  • a light guide having a second surface having a portion and a third surface continuous to the second surface, and a light emitting portion facing the third surface.
  • the light guide is arranged on a peripheral edge portion of the front surface.
  • the angle formed by the second surface and the third surface is an acute angle.
  • the angle formed by the second surface and the third surface is not less than 35 degrees and not more than 60 degrees.
  • the first surface and the third surface protrude from the second surface, and the protruding width of the first surface and the third surface from the second surface decreases from the center to both ends. It is characterized by.
  • the uneven portion of the second surface is formed by knurling.
  • a covering plate is provided for covering the light guide.
  • the light guide has a fourth surface continuous with the first surface, and includes an elastic member sandwiched between the fourth surface and the cover plate.
  • the end portion of the covering plate is projected toward the first surface so as to cover the side portion on the first surface side of the elastic member.
  • a television receiver includes the above display device and a reception unit that receives a television broadcast, and displays video on the display unit based on the television broadcast received by the reception unit. It is characterized by being displayed.
  • the present invention it is possible to prevent deterioration in image quality due to light emitted from the light guide.
  • FIG. 1 is a perspective view of a display device according to Embodiment 1.
  • FIG. It is a typical fragmentary perspective sectional view of a display apparatus.
  • FIG. 3 is a sectional view taken along line III-III in FIG.
  • It is a front perspective view of a light guide. It is a back perspective view of a light guide.
  • It is a schematic diagram explaining progress of light. It is a schematic diagram explaining the range of emitted light.
  • It is a schematic diagram explaining the shape of a light guide.
  • It is a schematic diagram explaining the range of emitted light It is a schematic diagram explaining the range of emitted light.
  • FIG. 6 is a schematic partial cross-sectional view of a display device according to Embodiment 2.
  • FIG. 6 is a schematic exploded perspective view of a main part of a display device according to Embodiment 3.
  • FIG. 6 is a schematic partial cross-sectional view of a display device according to Embodiment 3.
  • FIG. 1 is a perspective view of the display device according to the first embodiment.
  • reference numeral 1 denotes a display device.
  • the display device 1 includes a rectangular liquid crystal panel 2 having a display surface 2a, and a backlight device that irradiates the liquid crystal panel 2 with light from the opposite side of the display surface 2a. 3 (see FIG. 2).
  • the display device 1 also includes a leg portion 10 that is supported from one long side of the liquid crystal panel 2.
  • the display device 1 is placed on a flat table with the leg portion 10 facing down, and the display surface 2a is used as the front surface.
  • the up-down direction and the front-rear direction in the usage state of the display device 1 are used.
  • the display device 1 includes a tuner 11 that receives broadcast waves from an antenna and a decoder 12 that decodes encoded broadcast waves.
  • the display device 1 is configured as a television receiver.
  • the display device 1 includes a cover plate 4 that covers the entire lower side of the display surface 2a including a light guide to be described later.
  • FIG. 2 is a schematic partial perspective sectional view of the display device 1.
  • 3 is a cross-sectional view taken along line III-III in FIG.
  • the backlight device 3 includes a chassis 30 having a rectangular bottom plate and side plates rising from each of the four sides of the bottom plate.
  • the chassis 30 has a shallow box shape in which an opening is provided on the liquid crystal panel 2 side.
  • a plurality of LEDs (not shown) are juxtaposed on the bottom plate of the chassis 30, and these LEDs are exposed to the front side from the reflection sheet 33 that covers the entire inner surface of the chassis 30.
  • the liquid crystal panel 2 is arranged on the opening side of the chassis 30 so that the rear surface thereof faces the bottom plate through the panel chassis.
  • a rectangular diffusion plate 34a and an optical sheet are disposed between the liquid crystal panel 2 and the chassis 30.
  • 34b is arranged.
  • the peripheral part of the display surface 2 a of the liquid crystal panel 2 is covered with the bezel 5.
  • the bezel 5 includes a rectangular frame-shaped front plate 5a and a side plate 5b that rises vertically from the outer peripheral edge of the front plate 5a.
  • the front plate 5a of the bezel 5 covers the peripheral edge of the liquid crystal panel 2 via a spacer.
  • the side plate 5b of the bezel 5 is fixed to the side plate of the chassis 30 by screws, for example.
  • the covering plate 4 is a L-shaped member having a rectangular front plate 4a and a side plate 4b rising from one long side of the front plate 4a.
  • the front plate 4a has a curved portion 40 that is curved so as to protrude to one side at the central portion.
  • the cover plate 4 is attached to face the lower side portion of the bezel 5 so that the curved portion 40 protrudes to the front side of the liquid crystal panel 2.
  • a space is formed between the curved portion 40 and the front surface of the bezel 5.
  • FIG. 4 is a front perspective view of the light guide 6, and FIG. 5 is a rear perspective view of the light guide 6.
  • the light guide 6 is made of glass or transparent resin, and includes a first surface 61, a second surface 62 continuous with the first surface, a third surface 63 continuous with the second surface, and a first surface. And a fourth surface 64 continuous with the third surface.
  • the second surface 62 has a rectangular shape that is long in one direction, and the first surface 61 and the third surface 63 protrude from the long sides of the second surface 62 in the same direction.
  • the fourth surface 64 is substantially parallel to the second surface 62.
  • the angle formed by the first surface 61 and the second surface 62 and the angle formed by the second surface 62 and the third surface 63 are acute angles.
  • the angle formed by the first surface 61 and the second surface 62 is larger than the angle formed by the second surface 62 and the third surface 63.
  • the projecting width of the third surface 63 and the first surface 61 from the second surface 62 gradually decreases from the center in the longitudinal direction toward both ends. Thereby, the light guide 6 has a shape along the curved portion 40.
  • the second surface 62 has an uneven portion 62a formed by knurling.
  • the concavo-convex portion 62 a is formed in a portion excluding both ends in the longitudinal direction of the second surface 62. Note that the uneven portion 62 a may be formed on the entire second surface 62.
  • the first surface 61 is formed in a satin shape.
  • the fourth surface 64 is colored black. The concavo-convex portion 62 a can be easily formed on the second surface 62 by knurling.
  • the light guide 6 is arranged at the lower part of the peripheral edge of the liquid crystal panel 2 between the curved portion 40 of the cover plate 4 and the front surface of the bezel 5 so that the first surface 61 faces upward and the third surface 63 faces downward. And is sandwiched between the cover plate 4 and the bezel 5. Therefore, the first surface 61 extends forward with respect to the display surface 2a. Further, the first surface 61 is exposed outward between the bending portion 40 and the bezel 5.
  • the second surface 62 of the light guide 6 is in contact with the front surface of the bezel 5 and is along the display surface 2a.
  • the fourth surface 64 is in contact with the rear surface upper end side of the curved portion 40 of the cover plate 4.
  • the light guide 6 is fixed to the covering plate 4 by sticking the fourth surface 64 to the rear surface of the curved portion 40 using, for example, a double-sided tape.
  • An LED substrate 70 is disposed below the light guide 6, and the LED substrate 70 is fixed to the cover plate 4.
  • the LED 71 is mounted on the LED substrate 70 at a position facing the third surface 63 of the light guide 6.
  • the LED 71 emits light upward.
  • the covering plate 4 covers the light guide 6, the LED substrate 70, and the LED 71 from the front surface, the appearance of the display device 1 can be improved.
  • FIG. 6 is a schematic diagram for explaining the progress of light
  • FIG. 7 is a schematic diagram for explaining the range of emitted light.
  • the light emitted from the LED 71 is refracted backward by the third surface 63, enters the light guide 6, reaches the second surface 62, and is reflected obliquely forward by the second surface 62.
  • the light reflected by the second surface 62 reaches the first surface 61 and is emitted from the first surface 61 to the outside. Since the second surface 62 has the uneven portion 62a, the light reaching the second surface 62 is diffused and reflected in the longitudinal direction and the width direction (vertical direction) of the light guide 6.
  • the first surface 61 Since the first surface 61 is located on the front side of the display surface 2a and is inclined forward and obliquely downward, the light reaching the first surface is refracted to the front side. At this time, the light emitted from the first surface 61 is refracted on the first surface 61 and becomes upward and forward.
  • the angle formed by the first surface 61 and the second surface 62 is an acute angle, the light emitted from the first surface 61 is less likely to be reflected on the display surface 2a. Further, since the first surface 61 is formed in a satin shape, the light emitted from the light guide 6 is blurred.
  • Part of the light reflected by the second surface 62 also reaches the fourth surface 64, but is absorbed because the fourth surface 64 is black.
  • the 4th surface 64 does not need to be colored black, and what is necessary is just to prevent reflection of light in the rear surface of the curved part 40 of the coating plate 4 in this case.
  • the 1st surface 61 does not need to be formed in a satin shape.
  • the light diffused on the second surface 62 travels not only in the vertical direction but also in the longitudinal direction of the light guide 6. Accordingly, the light emitted from the light guide 6 spreads around the central portion in the longitudinal direction of the light guide 6 and attenuates from the center to both ends as shown by the hatched portion in FIG. It is visually recognized so that the central part in the longitudinal direction of the lighter becomes brighter and both end parts become darker. Further, since the light guide 6 is disposed at the lower part of the peripheral part of the display panel 2, the emitted light from the light guide 6 spreads from the lower part of the peripheral part of the display panel 2.
  • the angle formed by the second surface 62 and the third surface 63 is not less than 35 degrees and not more than 60 degrees, whereby the light is refracted by the third surface 63 and the range of emitted light is improved.
  • the range of the emitted light in the light guide 6 can be changed by changing the angle formed by the second surface 62 and the third surface 63.
  • 8A to 8C are schematic views for explaining the shape of the light guide 6.
  • the shape of the light guide 6 can be changed according to the display device 1, and is designed as shown in FIGS. 8A to 8C, for example.
  • the width L1 of the second surface 62 is the same, 12.8 mm.
  • the angle ⁇ 1 formed by the second surface 62 and the third surface 63 is 42.5 degrees
  • the third surface 63 and the second surface in the light guide 6 in FIG. 8B, the third surface 63 and the second surface.
  • the angle ⁇ 2 formed by 62 is 35.0 degrees
  • the angle ⁇ 3 formed by the third surface 63 and the second surface 62 is 60.0 degrees.
  • 9A to 9C are schematic diagrams for explaining the range of emitted light.
  • 9A shows the case where the light guide 6 shown in FIG. 8A is used
  • FIG. 9B shows the case where the light guide 6 shown in FIG. 8B is used
  • FIG. 9C shows the case where the light guide 6 shown in FIG. 8C is used.
  • the range of the emitted light shown in FIG. 9A is W1 in the longitudinal direction of the light guide 6, and the range of the emitted light shown in FIG. 9B is W2 in the longitudinal direction of the light guide 6 (W2 ⁇ W1).
  • 9B the width of the light guide 6 in the longitudinal direction of the light guide 6 is W3 (W3> W1).
  • the width L1 of the second surface 62 is set to be the same and reducing the angle formed by the third surface 63 and the second surface 62, the range of the emitted light is reduced, and the third surface 63 and the second surface are reduced.
  • Increasing the angle formed by 62 increases the range of emitted light. Accordingly, by adjusting the angle formed by the third surface 63 and the second surface 62 while keeping the width of the second surface 62 constant, the range of the emitted light can be appropriately set.
  • the range of the emitted light varies depending on the width of the second surface 62.
  • the width of the second surface 62 is changed depending on the design of the display device 1, but by changing the angle formed by the third surface 63 and the second surface 62 according to the width of the second surface 62, The range can be similar.
  • the light guide 6 is designed as shown in FIGS. 10A to 10C.
  • 10A to 10C are schematic views for explaining the shape of the light guide. 10A, the width L1 of the second surface 62 is 12.8 mm, and the angle ⁇ 1 formed by the third surface 63 and the second surface 62 is 42.5 degrees.
  • the width L2 of the second surface 62 is 14.9 mm, and the angle ⁇ 2 formed by the third surface 63 and the second surface 62 is 35.0 degrees.
  • the width L3 of the second surface 62 is 10.7 mm, and the angle ⁇ 3 formed by the third surface 63 and the second surface 62 is 60.0 degrees.
  • the light emission range on the first surface 61 is approximately the same.
  • the angle formed by the third surface 63 and the second surface 62 is adjusted in accordance with the width of the second surface 62. Thereby, the range of the emitted light can be adjusted to the same extent.
  • the operation is controlled by a control unit (not shown).
  • a user of the display device 1 can transmit an instruction to the control unit by operating an operation unit such as a remote controller (hereinafter referred to as “remote controller”) that communicates with the display device 1 using infrared rays.
  • remote controller a remote controller that communicates with the display device 1 using infrared rays.
  • the control unit By the operation of the control unit, the light emitted from each LED in the chassis 30 is diffused by the diffusion plate 34a, converged by the optical sheet 34b, and irradiated on the rear surface of the liquid crystal panel 2.
  • the liquid crystal panel 2 modulates and transmits the incident light, and displays an image on the display surface 2a which is the front surface.
  • the display device 1 displays an image on the display surface 2a of the liquid crystal panel 2 based on the broadcast wave of the television broadcast received by the tuner 11 and decoded by the decoder 12, and functions as a television receiver.
  • control unit controls turning on / off of the LED 71 and controls the luminance and color of the LED 71.
  • the LED 71 turns on and off, and the luminance or color of light emission of the LED 71 changes in accordance with operations by a remote controller such as power on / off, function selection, and volume adjustment.
  • a remote controller such as power on / off, function selection, and volume adjustment.
  • the light from the LED 71 is diffusely reflected on the second surface 62 and emitted from the first surface 61. Since the emitted light is reflected light by the second surface 62, it travels upward while diffusing forward. Therefore, it is possible to prevent the deterioration of the image quality due to the light emitted from the light guide 6.
  • Light emitted from the light guide 6 has little influence on the image on the display surface 2a and does not get in the way.
  • the light emitted from the light guide 6 is blurred by the textured surface of the first surface 61, and the sense of unity with the image on the display surface 2a is improved.
  • the projecting width of the first surface 61 and the third surface 63 from the second surface 62 decreases from the central portion in the longitudinal direction toward both ends, and covers the lower portion of the display panel 2 including the light guide 6.
  • the curved portion 40 of the plate 4 can also be shaped along this, and the design of the display device 1 is improved.
  • the overhang width of the first surface 61 and the third surface 63 from the second surface 62 may be constant in the longitudinal direction, and the light guide 6 can emit the reflected light from the second surface 62. Any shape is possible if possible.
  • FIG. 11 is a schematic partial cross-sectional view of the display device according to the second embodiment.
  • symbol is attached
  • the display device 1 according to Embodiment 2 includes a light guide 8.
  • the light guide 8 has a first surface 81, a second surface 82, a third surface 83, a fourth surface 84, and a fifth surface 85.
  • the third surface 83 and the second surface 82 have a rectangular shape that is long in one direction, are parallel to each other, and are connected by a continuous surface 85 a perpendicular to the third surface 83 and the second surface 82.
  • the second surface 82 is formed in an uneven shape by knurling. Therefore, the entire second surface 82 in the second embodiment is an uneven portion.
  • the third surface 83 and the second surface 82 are opposed to the fourth surface 84, and the facing distance between the third surface 83 and the fourth surface 84 is longer.
  • the fourth surface 84 has a rectangular shape that is long in one direction.
  • the first surface 81 is continuous with the second surface 82 and the fourth surface 84, and forms an acute angle with respect to the second surface 82.
  • the fifth surface 85 is connected to the fourth surface, and is connected to the third surface 83 via the continuous surface 85b.
  • the continuous surface 85 b projects vertically from the third surface 83.
  • the fifth surface 85 has an obtuse angle with respect to the fourth surface 84 and an obtuse angle with respect to the continuous surface 85b.
  • the angle formed by the fifth surface 85 and the second surface 82 is an acute angle.
  • the light guide 8 is arranged so that the second surface 82 faces the bezel 5 at the center of the lower side of the peripheral edge of the display surface 2a.
  • the third surface 83 is located outside the display surface 2 a, and the LED 71 is disposed so as to face the third surface 83.
  • the fourth surface 84 is in contact with the cover plate 4.
  • the light of the LED 71 enters from the third surface 83, is reflected by the fifth surface 85, and reaches the second surface 82.
  • the light that reaches the second surface 82 is diffusely reflected on the second surface 82 and is emitted from the first surface 81.
  • the light emission range and direction of the light guide 8 are the same as those in the first embodiment.
  • the light emitted from the first surface 81 of the light guide 8 is the reflected light on the second surface 82, and thus the image by the light emitted from the light guide 8. Can be prevented from degrading.
  • the light guide 8 is arranged at the peripheral edge of the display surface 2a, it does not interfere with the image displayed on the display surface 2a, and the light emitted from the light guide 8 and the display surface 2a are displayed. Sense of unity with the image is improved.
  • the angle formed by the second surface 82 and the fifth surface 85 is an acute angle, and light incident from the third surface 83 can be favorably advanced to the second surface 82 by refraction.
  • FIG. 12 is a schematic exploded perspective view of a main part of the display device according to the third embodiment.
  • FIG. 13 is a schematic partial cross-sectional view of the display device according to the third embodiment.
  • symbol is attached
  • the display device 1 according to Embodiment 3 includes a rectangular plate-like elastic member 9.
  • the elastic member 9 is a member formed by foaming a synthetic resin such as polyurethane foam or polyethylene foam, and returns to its original dimensions when the strain (compressed state) generated by applying stress from the outside is unloaded. Demonstrate returning stress.
  • the elastic member 9 is interposed between the rear surface of the curved portion 40 of the cover plate 4 and the fourth surface 64 of the light guide 6.
  • the elastic member 9 is sandwiched between the curved portion 40 of the cover plate 4 and the fourth surface 64 of the light guide 6 and is in a compressed state.
  • One surface of the elastic member 9 on the cover plate 4 side is curved along the curved surface of the bending portion 40.
  • one surface of the elastic member 9 on the cover plate 4 side may be flat without being curved.
  • the length of the elastic member 9 in the longitudinal direction is set to be substantially the same as the length of the fourth surface 64 in the longitudinal direction.
  • the length in the longitudinal direction of the elastic member 9 may be set to be substantially the same as the length in the longitudinal direction of the curved portion 40 of the cover plate 4.
  • the length of the elastic member 9 in the short direction is set to be shorter than the length of the fourth surface 64 in the short direction, and the elastic member 9 is disposed closer to the first surface 61 side on the fourth surface 64. is there.
  • the length of the elastic member 9 in the short direction may be substantially the same as the length of the fourth surface 64 in the short direction.
  • the thickness of the elastic member 9 is set to be larger than the size of the gap between the rear surface of the curved portion 40 of the cover plate 4 and the fourth surface 64 of the light guide 6.
  • Double-sided tape is applied or an adhesive is applied to one surface of the elastic member 9 on the cover plate 4 side, and has an adhesive function.
  • the one surface of the elastic member 9 and the rear surface of the curved portion 40 of the cover plate 4 are It ’s glued.
  • the other surface of the elastic member 9, that is, the surface on the fourth surface 64 side of the light guide 6 is not attached with a double-sided tape or an adhesive, and the other surface of the elastic member 9 and the light guide 6
  • the four surfaces 64 are in contact with each other.
  • the color of the elastic member 9 is dark brown such as black or gray.
  • the rear surface upper end portion of the curved portion 40 of the cover plate 4 protrudes toward the first surface 61 of the light guide 6 so as to cover the side portion on the one surface side of the elastic member 9. .
  • the rear surface upper end portion (protruding portion 41) that protrudes protrudes from the upper end portion of the front plate 4a of the cover plate 4, and the protruding portion 41 and the front plate 4a form an L-shaped cross section.
  • the protruding portion 41 is positioned so as to be close to a ridge line 64 ⁇ / b> E formed by the first surface 61 and the fourth surface 64 of the light guide 6.
  • the projecting portion 41 is formed along a notch formed between the first surface 61 and the fourth surface 64 of the light guide 6.
  • the end surface of the tip portion of the projecting portion 41 faces the fourth surface 64 of the notched region, and the projecting portion 41 is a notch formed between the first surface 61 and the fourth surface 64. It is arranged corresponding to the part.
  • the light emitted from the LED 71 is prevented from leaking from the gap between the cover plate 4 and the light guide 6 (light leakage phenomenon). Can do.
  • the elastic member 9 is sandwiched between the curved portion 40 of the covering plate 4 and the fourth surface 64 of the light guide 6 so that the elastic member 9 is compressed. Accordingly, even when the cover plate 4 expands due to heat and the gap between the curved portion 40 of the cover plate 4 and the light guide 6 widens, the compressed elastic member 9 is restored to cope with the widening of the gap. , Light leakage phenomenon can be prevented.
  • the elastic member 9 and the cover plate 4 are bonded, and the elastic member 9 and the light guide 6 are brought into contact with each other without being bonded, the elastic member 9 is restored when the compressed elastic member 9 is restored. It is possible to reduce the load applied to the light and reliably prevent the light leakage phenomenon.
  • the mode of adhesion of the elastic member 9 is not limited to this, and the elastic member 9 may be bonded to both the rear surface of the cover plate 4 and the fourth surface 64 of the light guide plate.
  • the color of the elastic member 9 is dark brown such as black or gray, the light emitted from the LED 71 can be absorbed and the light leakage phenomenon can be prevented more reliably.
  • the elastic member 9 is the display device 1. Is not visible from the outside. Therefore, the aesthetics of the display device 1 can be improved. Since the protruding portion 41 is positioned close to the ridge line 64E formed by the fourth surface 64 and the first surface 61 of the light guide 6, it affects the light emitted from the first surface 61. There is no.
  • the second surface 62 or 82 may be formed not by knurling but by a mold having unevenness to form an uneven shape.
  • the number of LEDs facing the third surface 63 is not limited to one, and may be plural.
  • the plurality of LEDs may be arranged along the longitudinal direction of the light guide 6 on the LED substrate.
  • the light guide 6 may be arranged at an appropriate position according to the design of the display device 1 instead of the peripheral portion of the display panel 2.
  • the display device 1 according to the first embodiment, the second embodiment, and the third embodiment is not a configuration used for a television receiver, but a configuration used for an information display, a car navigation display screen, or a personal computer. Also good.
  • As the display unit not only the liquid crystal panel 2 but also a display panel such as a plasma display or an organic EL panel may be used.
  • a display device (1) includes a display unit (2) that displays an image on a front surface (2a), and a first surface (61, 81) that extends forward with respect to the front surface (2a).
  • the second surface (62, 82) which is continuous with the first surface (61, 81) and is along the front surface (2a) and has the uneven portion (62a), and the second surface (62, 82).
  • a light guide (6, 8) having a third surface (63, 83) continuous with the light emitting portion (71) facing the third surface.
  • the light emitted from the first surface (61, 81) of the light guide (6, 8) is reflected on the second surface (62, 82), whereby the light guide (6 8), it is possible to prevent deterioration of the image quality due to the light emitted from the light source. Further, it is possible to produce a sense of unity between the light emitted from the light guide (6, 8) and the image displayed on the display surface (2a).
  • the display device (1) is characterized in that the light guides (6, 8) are arranged on a peripheral portion of the front surface (2a).
  • the display device (1) is characterized in that an angle formed by the second surface (62) and the third surface (63) is an acute angle.
  • the light incident from the third surface (63) can be favorably advanced to the second surface (62).
  • the display device (1) is characterized in that an angle formed by the second surface (62) and the third surface (63) is not less than 35 degrees and not more than 60 degrees.
  • the light incident from the third surface (63) can be favorably advanced to the second surface (62).
  • emitted from a 1st surface (61) can be made into a favorable magnitude
  • the first surface (61) and the third surface (63) protrude from the second surface (62), and the first surface (61). And the overhang
  • variety from the said 2nd surface (62) of the said 3rd surface (63) is small from the center part to both ends.
  • the design is improved.
  • the display device (1) is characterized in that the uneven portion (62a) included in the second surface (62, 82) is formed by knurling.
  • the concavo-convex portion (62a) can be easily formed.
  • the display device (1) includes a covering plate (4) that covers the light guide (6, 8).
  • the light guide (6, 8) can be prevented from being visually recognized from the front side, so that the beauty is improved.
  • the light guide (6, 8) has a fourth surface (64, 84) continuous to the first surface (61, 81).
  • An elastic member (9) sandwiched between the fourth surface (64, 84) and the cover plate (4) is provided.
  • the cover plate (4) expands due to heat generated by the light emitting section (71) and the cover plate (4) and the light guides (6, 8) are separated from each other.
  • the elastic member (9) sandwiched between the fourth surface (64, 84) of the light guide (6, 8) and the cover plate (4) restores the shape so that the rear surface of the cover plate and the light guide
  • the gap between the (6, 8) and the fourth surface can be closed. Therefore, light leakage can be prevented.
  • the end (41) of the covering plate (4) covers the side on the first surface side of the elastic member (9). It is characterized by projecting toward one surface.
  • the end portion (41) of the cover plate (4) has the first surface (61, 81) so as to cover the side portion of the elastic member (9) on the first surface (61, 81) side.
  • the elastic member (9) cannot be visually recognized from the first surface (61, 81) side. Therefore, the aesthetics of the display device (1) can be improved.
  • the television receiver which concerns on one Embodiment of this indication is equipped with the above-mentioned display apparatus (1), and the receiving part (11) which receives a television broadcast, The television received by the said receiving part (11) An image is displayed on the display unit (2) based on John broadcasting.

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Abstract

This display device is provided with: a display section (2) that displays an image on a front surface (2a); a light guide body (6) having a first surface (61) extending toward the front surface (2a), a second surface (62) continued from the first surface (61), said second surface being formed along the front surface (2a), and having an uneven section, and a third surface (63) continued from the second surface (62); and a light emitting section (71) facing the third surface (63).

Description

表示装置及びテレビジョン受信機Display device and television receiver
　本発明は、表示装置及びテレビジョン受信機に関する。 The present invention relates to a display device and a television receiver.
　前面に画像を表示する表示部を備える表示装置は、テレビジョン受信機及びパーソナルコンピュータ等の機器に用いられている。表示面の周縁部には、表示装置又は該表示装置を備える機器の動作状態を示すインジケータ部が配されている場合がある。 Display devices including a display unit that displays an image on the front are used in devices such as television receivers and personal computers. There may be a case where an indicator portion indicating the operation state of the display device or a device including the display device is arranged on the peripheral portion of the display surface.
　例えば、特許文献１のノートブック型パーソナルコンピュータが備えるインジケータ部は、表示面の下部に位置する発光部（ＬＥＤ）と、受光面から発光部からの光を受光し、出射面から光が出射する導光体とを備える。インジケータ部は、導光体からの出射光により、ノートブック型パーソナルコンピュータの電源の投入状態及び充電状態等の動作状態を表示する。 For example, the indicator unit included in the notebook personal computer of Patent Document 1 receives light from the light emitting unit (LED) located at the lower part of the display surface and the light receiving surface, and emits light from the light emitting surface. A light guide. The indicator unit displays an operating state such as a power-on state and a charging state of the notebook personal computer by light emitted from the light guide.
特開２００２－０７２９３３号公報JP 2002-072933 A
　しかしながら、インジケータ部における導光体からの出射光は、表示装置の動作状態等を使用者に伝達しているが、前面に表示される画像と連動しておらず、一体感は生じていない。一方、導光体からの出射光を画像と連動させる場合、該出射光により画像の品位を低下させてしまう虞がある。 However, although the emitted light from the light guide in the indicator portion transmits the operating state of the display device to the user, it is not interlocked with the image displayed on the front surface, and there is no sense of unity. On the other hand, when the emitted light from the light guide is interlocked with the image, the emitted light may reduce the quality of the image.
　本発明は、斯かる事情に鑑みてなされたものであり、その目的とするところは、導光体からの出射光による画像の品位の低下を防止できる表示装置及びテレビジョン受信機を提供することにある。 The present invention has been made in view of such circumstances, and an object of the present invention is to provide a display device and a television receiver that can prevent deterioration in image quality due to light emitted from a light guide. It is in.
　本開示の一実施形態に係る表示装置は、前面に画像を表示する表示部と、前記前面に対して前向きに延びる第１面、該第１面に連続し、前記前面に沿っており、凹凸部を有する第２面、及び該第２面に連続する第３面を有する導光体と、前記第３面に対向する発光部とを備える。 A display device according to an embodiment of the present disclosure includes a display unit that displays an image on a front surface, a first surface that extends forward with respect to the front surface, continuous to the first surface, and along the front surface. A light guide having a second surface having a portion and a third surface continuous to the second surface, and a light emitting portion facing the third surface.
　また、前記導光体は、前記前面の周縁部に配されていることを特徴とする。 Further, the light guide is arranged on a peripheral edge portion of the front surface.
　また、前記第２面及び前記第３面がなす角度は鋭角であることを特徴とする。 The angle formed by the second surface and the third surface is an acute angle.
　また、前記第２面及び前記第３面がなす角度は３５度以上６０度以下であることを特徴とする。 Further, the angle formed by the second surface and the third surface is not less than 35 degrees and not more than 60 degrees.
　また、前記第１面及び前記第３面は、前記第２面から張り出しており、前記第１面及び前記第３面の前記第２面からの張り出し幅は、中央部から両端部にかけて小さくなっていることを特徴とする。 The first surface and the third surface protrude from the second surface, and the protruding width of the first surface and the third surface from the second surface decreases from the center to both ends. It is characterized by.
　また、前記第２面が有する凹凸部は、ローレット加工により形成されていることを特徴とする。 Further, the uneven portion of the second surface is formed by knurling.
　また、前記導光体を覆う被覆板を備えることを特徴とする。 Also, a covering plate is provided for covering the light guide.
　また、前記導光体は、前記第１面に連続する第４面を有し、前記第４面と前記被覆板によって挟持された弾性部材を備えることを特徴とする。 The light guide has a fourth surface continuous with the first surface, and includes an elastic member sandwiched between the fourth surface and the cover plate.
　また、前記被覆板の端部は、前記弾性部材の前記第１面側の側部を覆うように、前記第１面に向かって突設してあることを特徴とする。 Further, the end portion of the covering plate is projected toward the first surface so as to cover the side portion on the first surface side of the elastic member.
　本開示の一実施形態に係るテレビジョン受信機は、上記の表示装置と、テレビジョン放送を受信する受信部とを備え、前記受信部で受信したテレビジョン放送に基づいて前記表示部に映像を表示するようにしてあることを特徴とする。 A television receiver according to an embodiment of the present disclosure includes the above display device and a reception unit that receives a television broadcast, and displays video on the display unit based on the television broadcast received by the reception unit. It is characterized by being displayed.
　本発明によれば、導光体からの出射光による画像の品位の低下を防止できる。 According to the present invention, it is possible to prevent deterioration in image quality due to light emitted from the light guide.
実施の形態１に係る表示装置の斜視図である。1 is a perspective view of a display device according to Embodiment 1. FIG. 表示装置の模式的な部分斜視断面図である。It is a typical fragmentary perspective sectional view of a display apparatus. 図１のＩＩＩ－ＩＩＩ線による断面図である。FIG. 3 is a sectional view taken along line III-III in FIG. 導光体の正面斜視図である。It is a front perspective view of a light guide. 導光体の背面斜視図である。It is a back perspective view of a light guide. 光の進行を説明する模式図である。It is a schematic diagram explaining progress of light. 出射光の範囲を説明する模式図である。It is a schematic diagram explaining the range of emitted light. 導光体の形状を説明する模式図である。It is a schematic diagram explaining the shape of a light guide. 導光体の形状を説明する模式図である。It is a schematic diagram explaining the shape of a light guide. 導光体の形状を説明する模式図である。It is a schematic diagram explaining the shape of a light guide. 出射光の範囲を説明する模式図である。It is a schematic diagram explaining the range of emitted light. 出射光の範囲を説明する模式図である。It is a schematic diagram explaining the range of emitted light. 出射光の範囲を説明する模式図である。It is a schematic diagram explaining the range of emitted light. 導光体の形状を説明する模式図である。It is a schematic diagram explaining the shape of a light guide. 導光体の形状を説明する模式図である。It is a schematic diagram explaining the shape of a light guide. 導光体の形状を説明する模式図である。It is a schematic diagram explaining the shape of a light guide. 実施の形態２に係る表示装置の模式的部分断面図である。6 is a schematic partial cross-sectional view of a display device according to Embodiment 2. FIG. 実施の形態３に係る表示装置の要部の模式的分解斜視図である。6 is a schematic exploded perspective view of a main part of a display device according to Embodiment 3. FIG. 実施の形態３に係る表示装置の模式的部分断面図である。6 is a schematic partial cross-sectional view of a display device according to Embodiment 3. FIG.
　以下、本発明の実施形態について説明する。
（実施の形態１）
　図１は、実施の形態１に係る表示装置の斜視図である。図１において１は、表示装置であり、図示の如く表示装置１は、表示面２ａを有する矩形の液晶パネル２と、該液晶パネル２に表示面２ａの反対側から光を照射するバックライト装置３（図２参照）とを備える。また、表示装置１は、液晶パネル２の一の長辺側から支持する脚部１０を備える。表示装置１は、脚部１０を下側にして平坦な台に載せ、表示面２ａを前面として使用する。以下の説明においては、表示装置１の使用状態における上下、前後方向を使用する。 Hereinafter, embodiments of the present invention will be described.
(Embodiment 1)
FIG. 1 is a perspective view of the display device according to the first embodiment. 1, reference numeral 1 denotes a display device. As shown in the figure, the display device 1 includes a rectangular liquid crystal panel 2 having a display surface 2a, and a backlight device that irradiates the liquid crystal panel 2 with light from the opposite side of the display surface 2a. 3 (see FIG. 2). The display device 1 also includes a leg portion 10 that is supported from one long side of the liquid crystal panel 2. The display device 1 is placed on a flat table with the leg portion 10 facing down, and the display surface 2a is used as the front surface. In the following description, the up-down direction and the front-rear direction in the usage state of the display device 1 are used.
　表示装置１の内部には、アンテナから放送波を受信するチューナ１１及び符号化された放送波を復号するデコーダ１２が設けてあり、表示装置１はテレビジョン受信機として構成されている。表示装置１は、表示面２ａの下辺全体を、後述する導光体を含めて覆っている被覆板４を備える。 The display device 1 includes a tuner 11 that receives broadcast waves from an antenna and a decoder 12 that decodes encoded broadcast waves. The display device 1 is configured as a television receiver. The display device 1 includes a cover plate 4 that covers the entire lower side of the display surface 2a including a light guide to be described later.
　図２は、表示装置１の模式的な部分斜視断面図である。図３は、図１のＩＩＩ－ＩＩＩ線による断面図である。バックライト装置３は、矩形状の底板と、該底板の四辺の夫々から立ち上がる側板とを有するシャーシ３０を備える。シャーシ３０は、液晶パネル２側に開口が設けられた浅底箱型をなす。 FIG. 2 is a schematic partial perspective sectional view of the display device 1. 3 is a cross-sectional view taken along line III-III in FIG. The backlight device 3 includes a chassis 30 having a rectangular bottom plate and side plates rising from each of the four sides of the bottom plate. The chassis 30 has a shallow box shape in which an opening is provided on the liquid crystal panel 2 side.
　シャーシ３０の底板上には複数のＬＥＤ（不図示）が並設されており、これらのＬＥＤは、シャーシ３０の内面全体を覆う反射シート３３から前側に露出させてある。液晶パネル２は、シャーシ３０の開口側にパネルシャーシを介して後面が前記底板に対向するように配されており、液晶パネル２とシャーシ３０との間には矩形状の拡散板３４ａ及び光学シート３４ｂが配されている。 A plurality of LEDs (not shown) are juxtaposed on the bottom plate of the chassis 30, and these LEDs are exposed to the front side from the reflection sheet 33 that covers the entire inner surface of the chassis 30. The liquid crystal panel 2 is arranged on the opening side of the chassis 30 so that the rear surface thereof faces the bottom plate through the panel chassis. A rectangular diffusion plate 34a and an optical sheet are disposed between the liquid crystal panel 2 and the chassis 30. 34b is arranged.
　液晶パネル２の表示面２ａの周縁部はベゼル５に覆われている。ベゼル５は、矩形枠形の前板５ａと該前板５ａの外周縁から垂直に立ち上がる側板５ｂとを有する。ベゼル５の前板５ａは、スペーサを介して液晶パネル２の周縁部を覆っている。ベゼル５の側板５ｂは、例えば、螺子によりシャーシ３０の側板に固定されている。 The peripheral part of the display surface 2 a of the liquid crystal panel 2 is covered with the bezel 5. The bezel 5 includes a rectangular frame-shaped front plate 5a and a side plate 5b that rises vertically from the outer peripheral edge of the front plate 5a. The front plate 5a of the bezel 5 covers the peripheral edge of the liquid crystal panel 2 via a spacer. The side plate 5b of the bezel 5 is fixed to the side plate of the chassis 30 by screws, for example.
　被覆板４は、矩形の前板４ａと、該前板４ａの一の長辺から立ち上がる側板４ｂとを有する断面Ｌ字状の部材である。前板４ａは、中央部にて一側に張り出すように湾曲している湾曲部４０を有する。被覆板４は、湾曲部４０が液晶パネル２の前側に張り出すようにベゼル５の下辺部分に対向させて取り付けられている。湾曲部４０及びベゼル５の前面の間には、空間が形成されている。 The covering plate 4 is a L-shaped member having a rectangular front plate 4a and a side plate 4b rising from one long side of the front plate 4a. The front plate 4a has a curved portion 40 that is curved so as to protrude to one side at the central portion. The cover plate 4 is attached to face the lower side portion of the bezel 5 so that the curved portion 40 protrudes to the front side of the liquid crystal panel 2. A space is formed between the curved portion 40 and the front surface of the bezel 5.
　図４は、導光体６の正面斜視図であり、図５は、導光体６の背面斜視図である。導光体６は、ガラス又は透明な樹脂製であり、第１面６１と、該第１面に連続する第２面６２と、該第２面に連続する第３面６３と、第１面及び第３面に連続する第４面６４とを有する。 4 is a front perspective view of the light guide 6, and FIG. 5 is a rear perspective view of the light guide 6. The light guide 6 is made of glass or transparent resin, and includes a first surface 61, a second surface 62 continuous with the first surface, a third surface 63 continuous with the second surface, and a first surface. And a fourth surface 64 continuous with the third surface.
　第２面６２は、一方向に長い矩形状をなしており、第１面６１及び第３面６３は、第２面６２の長辺夫々から同じ向きに張り出している。第４面６４は、第２面６２に略平行である。第１面６１及び第２面６２がなす角度、第２面６２及び第３面６３がなす角度は、鋭角である。第１面６１及び第２面６２がなす角度は、第２面６２及び第３面６３がなす角度よりも大きい。また、第３面６３及び第１面６１の第２面６２からの張り出し幅は、長手方向中央から両端に向けて徐々に小さくなっている。これにより、導光体６は、前記湾曲部４０に沿った形状となっている。 The second surface 62 has a rectangular shape that is long in one direction, and the first surface 61 and the third surface 63 protrude from the long sides of the second surface 62 in the same direction. The fourth surface 64 is substantially parallel to the second surface 62. The angle formed by the first surface 61 and the second surface 62 and the angle formed by the second surface 62 and the third surface 63 are acute angles. The angle formed by the first surface 61 and the second surface 62 is larger than the angle formed by the second surface 62 and the third surface 63. Further, the projecting width of the third surface 63 and the first surface 61 from the second surface 62 gradually decreases from the center in the longitudinal direction toward both ends. Thereby, the light guide 6 has a shape along the curved portion 40.
　第２面６２は、ローレット加工により形成された凹凸部６２ａを有する。凹凸部６２ａは、第２面６２の長手方向両端部を除いた部分に形成されている。なお、凹凸部６２ａは、第２面６２全面に形成されていてもよい。第１面６１は、梨地状に形成されている。また、第４面６４は、黒色に着色されている。ローレット加工により、第２面６２に凹凸部６２ａを容易に形成することができる。 The second surface 62 has an uneven portion 62a formed by knurling. The concavo-convex portion 62 a is formed in a portion excluding both ends in the longitudinal direction of the second surface 62. Note that the uneven portion 62 a may be formed on the entire second surface 62. The first surface 61 is formed in a satin shape. The fourth surface 64 is colored black. The concavo-convex portion 62 a can be easily formed on the second surface 62 by knurling.
　導光体６は、液晶パネル２の周縁部の下部において、被覆板４の湾曲部４０及びベゼル５の前面間に、第１面６１が上向きで第３面６３が下向きになるように配されており、被覆板４及びベゼル５に挟持されている。したがって、第１面６１は、表示面２ａに対して前向きに延びることとなる。また、第１面６１は、湾曲部４０及びベゼル５の間で外向きに露出している。 The light guide 6 is arranged at the lower part of the peripheral edge of the liquid crystal panel 2 between the curved portion 40 of the cover plate 4 and the front surface of the bezel 5 so that the first surface 61 faces upward and the third surface 63 faces downward. And is sandwiched between the cover plate 4 and the bezel 5. Therefore, the first surface 61 extends forward with respect to the display surface 2a. Further, the first surface 61 is exposed outward between the bending portion 40 and the bezel 5.
　導光体６の第２面６２は、ベゼル５の前面に接しており、表示面２ａに沿っている。第４面６４は、被覆板４の湾曲部４０の後面上端側に接している。導光体６は、第４面６４を、例えば両面テープにより湾曲部４０の後面に貼り付けることにより、被覆板４に固定される。 The second surface 62 of the light guide 6 is in contact with the front surface of the bezel 5 and is along the display surface 2a. The fourth surface 64 is in contact with the rear surface upper end side of the curved portion 40 of the cover plate 4. The light guide 6 is fixed to the covering plate 4 by sticking the fourth surface 64 to the rear surface of the curved portion 40 using, for example, a double-sided tape.
　導光体６の下方には、ＬＥＤ基板７０が配され、ＬＥＤ基板７０は被覆板４に固定されている。ＬＥＤ基板７０には、導光体６の第３面６３に対向する位置にＬＥＤ７１が実装されている。ＬＥＤ７１は、上向きに発光する。ここで、被覆板４が、導光体６、ＬＥＤ基板７０及びＬＥＤ７１を前面から覆っているので表示装置１の美観を向上させることができる。 An LED substrate 70 is disposed below the light guide 6, and the LED substrate 70 is fixed to the cover plate 4. The LED 71 is mounted on the LED substrate 70 at a position facing the third surface 63 of the light guide 6. The LED 71 emits light upward. Here, since the covering plate 4 covers the light guide 6, the LED substrate 70, and the LED 71 from the front surface, the appearance of the display device 1 can be improved.
　図６は、光の進行を説明する模式図であり、図７は、出射光の範囲を説明する模式図である。図６に示すように、ＬＥＤ７１の発光は、第３面６３により後向きに屈折されて導光体６に入射して第２面６２側に到達し、第２面６２により斜め前向きに反射される。第２面６２に反射された光は、第１面６１に達し、該第１面６１から外部に出射される。第２面６２は凹凸部６２ａを有するので、第２面６２に到達した光は、導光体６の長手方向及び幅方向（上下方向）に拡散して反射される。 FIG. 6 is a schematic diagram for explaining the progress of light, and FIG. 7 is a schematic diagram for explaining the range of emitted light. As shown in FIG. 6, the light emitted from the LED 71 is refracted backward by the third surface 63, enters the light guide 6, reaches the second surface 62, and is reflected obliquely forward by the second surface 62. . The light reflected by the second surface 62 reaches the first surface 61 and is emitted from the first surface 61 to the outside. Since the second surface 62 has the uneven portion 62a, the light reaching the second surface 62 is diffused and reflected in the longitudinal direction and the width direction (vertical direction) of the light guide 6.
　第１面６１は、表示面２ａの前側に位置し、前向きで斜め下に傾斜しているので、第１面への到達光は、前側に屈折する。このとき、第１面６１から出射する光は、第１面６１において屈折し、上向き及び前向きとなる。ここで、第１面６１及び第２面６２がなす角度が鋭角であるので、第１面６１から出射する光は、表示面２ａに映り込みにくくなる。また、第１面６１が梨地状に形成されているので、導光体６から出射する光にぼかし感が生じる。 Since the first surface 61 is located on the front side of the display surface 2a and is inclined forward and obliquely downward, the light reaching the first surface is refracted to the front side. At this time, the light emitted from the first surface 61 is refracted on the first surface 61 and becomes upward and forward. Here, since the angle formed by the first surface 61 and the second surface 62 is an acute angle, the light emitted from the first surface 61 is less likely to be reflected on the display surface 2a. Further, since the first surface 61 is formed in a satin shape, the light emitted from the light guide 6 is blurred.
　第２面６２による反射光の一部は、第４面６４にも到達するが、第４面６４が黒色であるので吸収される。なお、第４面６４は、黒色に着色していなくてもよく、この場合、被覆板４の湾曲部４０の後面において光の反射を防止するようにすればよい。更に、第１面６１は、梨地状に形成されていなくてもよい。 Part of the light reflected by the second surface 62 also reaches the fourth surface 64, but is absorbed because the fourth surface 64 is black. In addition, the 4th surface 64 does not need to be colored black, and what is necessary is just to prevent reflection of light in the rear surface of the curved part 40 of the coating plate 4 in this case. Furthermore, the 1st surface 61 does not need to be formed in a satin shape.
　第２面６２において拡散した光は、上下方向だけでなく、導光体６の長手方向にも進行する。したがって、導光体６から出射する光は、図７の斜線部分に示すように、導光体６の長手方向中央部を中心として広がり、中央部から両端部にかけて減衰するので、導光体６の長手方向中央部が明るくなり両端部が暗くなるように視認される。また、導光体６は、表示パネル２の周縁部の下部に配されているので、導光体６からの出射光は、表示パネル２の周縁部の下部から広がる。 The light diffused on the second surface 62 travels not only in the vertical direction but also in the longitudinal direction of the light guide 6. Accordingly, the light emitted from the light guide 6 spreads around the central portion in the longitudinal direction of the light guide 6 and attenuates from the center to both ends as shown by the hatched portion in FIG. It is visually recognized so that the central part in the longitudinal direction of the lighter becomes brighter and both end parts become darker. Further, since the light guide 6 is disposed at the lower part of the peripheral part of the display panel 2, the emitted light from the light guide 6 spreads from the lower part of the peripheral part of the display panel 2.
　ここで、第２面６２及び第３面６３がなす角度は、３５度以上６０度以下が望ましく、これにより、第３面６３による光の屈折が良好となり、出射光の範囲が良好となる。 Here, it is desirable that the angle formed by the second surface 62 and the third surface 63 is not less than 35 degrees and not more than 60 degrees, whereby the light is refracted by the third surface 63 and the range of emitted light is improved.
　導光体６における出射光の範囲は、第２面６２及び第３面６３がなす角度を変更することにより、変更することが可能である。図８Ａ～図８Ｃは、導光体６の形状を説明する模式図である。導光体６の形状は、表示装置１に合わせて、変更が可能であり、例えば、図８Ａ～図８Ｃに示すように設計される。 The range of the emitted light in the light guide 6 can be changed by changing the angle formed by the second surface 62 and the third surface 63. 8A to 8C are schematic views for explaining the shape of the light guide 6. The shape of the light guide 6 can be changed according to the display device 1, and is designed as shown in FIGS. 8A to 8C, for example.
　図８Ａ～図８Ｃの導光体６において、第２面６２の幅Ｌ１は同一であり、１２．８ｍｍである。一方、図８Ａの導光体６において、第２面６２及び第３面６３のなす角度θ１は、４２．５度であり、図８Ｂの導光体６において、第３面６３及び第２面６２のなす角度θ２は、３５．０度であり、図８Ｃの導光体６において、第３面６３及び第２面６２のなす角度θ３は、６０．０度である。 8A to 8C, the width L1 of the second surface 62 is the same, 12.8 mm. On the other hand, in the light guide 6 in FIG. 8A, the angle θ1 formed by the second surface 62 and the third surface 63 is 42.5 degrees, and in the light guide 6 in FIG. 8B, the third surface 63 and the second surface. The angle θ2 formed by 62 is 35.0 degrees, and in the light guide 6 of FIG. 8C, the angle θ3 formed by the third surface 63 and the second surface 62 is 60.0 degrees.
　図９Ａ～図９Ｃは、出射光の範囲を説明する模式図である。図９Ａは、図８Ａの導光体６を用いた場合、図９Ｂは、図８Ｂの導光体６を用いた場合、図９Ｃは、図８Ｃの導光体６を用いた場合を示している。図９Ａに示す出射光の範囲は、導光体６の長手方向の幅がＷ１であり、図９Ｂに示す出射光の範囲は、導光体６の長手方向における幅がＷ２（Ｗ２＜Ｗ１）であり、図９Ｂに示す出射光の範囲は、導光体６の長手方向における幅がＷ３（Ｗ３＞Ｗ１）である。 9A to 9C are schematic diagrams for explaining the range of emitted light. 9A shows the case where the light guide 6 shown in FIG. 8A is used, FIG. 9B shows the case where the light guide 6 shown in FIG. 8B is used, and FIG. 9C shows the case where the light guide 6 shown in FIG. 8C is used. Yes. The range of the emitted light shown in FIG. 9A is W1 in the longitudinal direction of the light guide 6, and the range of the emitted light shown in FIG. 9B is W2 in the longitudinal direction of the light guide 6 (W2 <W1). 9B, the width of the light guide 6 in the longitudinal direction of the light guide 6 is W3 (W3> W1).
　以上のように、第２面６２の幅Ｌ１を同一として、第３面６３及び第２面６２のなす角度を小さくすることにより、出射光の範囲は小さくなり、第３面６３及び第２面６２のなす角度を大きくすることにより、出射光の範囲は大きくなる。したがって、第２面６２の幅を一定として、第３面６３及び第２面６２のなす角度を調整することにより、出射光の範囲を適宜に設定することができる。 As described above, by setting the width L1 of the second surface 62 to be the same and reducing the angle formed by the third surface 63 and the second surface 62, the range of the emitted light is reduced, and the third surface 63 and the second surface are reduced. Increasing the angle formed by 62 increases the range of emitted light. Accordingly, by adjusting the angle formed by the third surface 63 and the second surface 62 while keeping the width of the second surface 62 constant, the range of the emitted light can be appropriately set.
　また、出射光の範囲は、第２面６２の幅によっても変化する。第２面６２の幅は、表示装置１の設計によって変更されるが、第２面６２の幅に応じて、第３面６３及び第２面６２のなす角度を変更することにより、出射光の範囲を同程度とすることができる。例えば、導光体６は、図１０Ａ～図１０Ｃに示すように設計される。図１０Ａ～図１０Ｃは、導光体の形状を説明する模式図である。図１０Ａの導光体６において、第２面６２の幅Ｌ１は、１２．８ｍｍであり、第３面６３及び第２面６２のなす角度θ１は、４２．５度である。図１０Ｂの導光体６において、第２面６２の幅Ｌ２は、１４．９ｍｍであり、第３面６３及び第２面６２のなす角度θ２は、３５．０度である。図１０Ｃの導光体６において、第２面６２の幅Ｌ３は、１０．７ｍｍであり、第３面６３及び第２面６２のなす角度θ３は、６０．０度である。 Also, the range of the emitted light varies depending on the width of the second surface 62. The width of the second surface 62 is changed depending on the design of the display device 1, but by changing the angle formed by the third surface 63 and the second surface 62 according to the width of the second surface 62, The range can be similar. For example, the light guide 6 is designed as shown in FIGS. 10A to 10C. 10A to 10C are schematic views for explaining the shape of the light guide. 10A, the width L1 of the second surface 62 is 12.8 mm, and the angle θ1 formed by the third surface 63 and the second surface 62 is 42.5 degrees. 10B, the width L2 of the second surface 62 is 14.9 mm, and the angle θ2 formed by the third surface 63 and the second surface 62 is 35.0 degrees. 10C, the width L3 of the second surface 62 is 10.7 mm, and the angle θ3 formed by the third surface 63 and the second surface 62 is 60.0 degrees.
　図１０Ａ～図１０Ｃのように設計された導光体６を用いた場合、第１面６１における発光の範囲は、同程度となる。以上のように、第２面６２の幅が表示装置１の設計により異なる場合であっても、第２面６２の幅に合わせて、第３面６３及び第２面６２のなす角度を調整することにより、出射光の範囲を同程度に調整できる。 When the light guide 6 designed as shown in FIGS. 10A to 10C is used, the light emission range on the first surface 61 is approximately the same. As described above, even if the width of the second surface 62 differs depending on the design of the display device 1, the angle formed by the third surface 63 and the second surface 62 is adjusted in accordance with the width of the second surface 62. Thereby, the range of the emitted light can be adjusted to the same extent.
　以上の如く構成された表示装置１においては、図示しない制御部により動作の制御が行われる。表示装置１の使用者は、例えば、赤外線により表示装置１と通信するリモートコントローラ（以下、「リモコン」という）等の操作部を操作することにより、制御部に指示を送信することができる。 In the display device 1 configured as described above, the operation is controlled by a control unit (not shown). A user of the display device 1 can transmit an instruction to the control unit by operating an operation unit such as a remote controller (hereinafter referred to as “remote controller”) that communicates with the display device 1 using infrared rays.
　制御部の動作により、シャーシ３０内の各ＬＥＤから出射した光が、拡散板３４ａにより拡散し、光学シート３４ｂにより集束され、液晶パネル２の後面に照射される。液晶パネル２は、入射光を変調して透過し、前面である表示面２ａに画像を表示する。表示装置１は、チューナ１１により受信し、デコーダ１２が復号したテレビジョン放送の放送波に基づいて、液晶パネル２の表示面２ａに映像を表示し、テレビジョン受信機として機能する。 By the operation of the control unit, the light emitted from each LED in the chassis 30 is diffused by the diffusion plate 34a, converged by the optical sheet 34b, and irradiated on the rear surface of the liquid crystal panel 2. The liquid crystal panel 2 modulates and transmits the incident light, and displays an image on the display surface 2a which is the front surface. The display device 1 displays an image on the display surface 2a of the liquid crystal panel 2 based on the broadcast wave of the television broadcast received by the tuner 11 and decoded by the decoder 12, and functions as a television receiver.
　また、制御部は、ＬＥＤ７１の点消灯を制御し、ＬＥＤ７１の輝度及び色を制御する。電源のオンオフ、機能の選択、音量調整等のリモコン等による操作に伴ってＬＥＤ７１が点消灯し、また、ＬＥＤ７１の発光の輝度又は色が変化する。これらを利用して、表示パネル２が表示面２ａに表示する表示画像に応じて、種々の演出を行わせることができる。したがって、導光体６から出射される光と、表示パネル２が表示する画像との一体感を生じさせることができ、使用者に知覚させることができる。例えば、表示面２ａの下端部中央に明るい画像を表示することにより、第１面６１と、表示面２ａの下端部とがシームレスに発光しているように見えることとなる。 Also, the control unit controls turning on / off of the LED 71 and controls the luminance and color of the LED 71. The LED 71 turns on and off, and the luminance or color of light emission of the LED 71 changes in accordance with operations by a remote controller such as power on / off, function selection, and volume adjustment. By utilizing these, various effects can be performed according to the display image displayed on the display surface 2a by the display panel 2. Therefore, a sense of unity between the light emitted from the light guide 6 and the image displayed on the display panel 2 can be generated, and can be perceived by the user. For example, by displaying a bright image at the center of the lower end of the display surface 2a, the first surface 61 and the lower end of the display surface 2a appear to emit light seamlessly.
　また、導光体６において、ＬＥＤ７１からの光は、第２面６２において拡散反射して、第１面６１から出射する。出射した光は、第２面６２により反射光であるので、上方向に進行する一方、前側に拡散して進行する。したがって、導光体６からの出射光による画像の品位の低下を防止できる。導光体６からの出射光は、表示面２ａの画像への影響が少なく、邪魔とはならない。更に、導光体６からの出射光は、第１面６１の梨地面によりぼかし感が生じており、表示面２ａの画像との一体感が良好となる。 Further, in the light guide 6, the light from the LED 71 is diffusely reflected on the second surface 62 and emitted from the first surface 61. Since the emitted light is reflected light by the second surface 62, it travels upward while diffusing forward. Therefore, it is possible to prevent the deterioration of the image quality due to the light emitted from the light guide 6. Light emitted from the light guide 6 has little influence on the image on the display surface 2a and does not get in the way. Furthermore, the light emitted from the light guide 6 is blurred by the textured surface of the first surface 61, and the sense of unity with the image on the display surface 2a is improved.
　第１面６１及び第３面６３の第２面６２からの張り出し幅は、長手方向中央部から両端部に向けて小さくなっており、導光体６を含めて表示パネル２の下部を覆う被覆板４の湾曲部４０もこれに沿った形状にすることができ、表示装置１のデザイン性が向上する。なお、第１面６１及び第３面６３の第２面６２からの張り出し幅は、長手方向において一定であってもよく、導光体６は、第２面６２による反射光を出射することができれば、いかなる形状であってもよい。 The projecting width of the first surface 61 and the third surface 63 from the second surface 62 decreases from the central portion in the longitudinal direction toward both ends, and covers the lower portion of the display panel 2 including the light guide 6. The curved portion 40 of the plate 4 can also be shaped along this, and the design of the display device 1 is improved. The overhang width of the first surface 61 and the third surface 63 from the second surface 62 may be constant in the longitudinal direction, and the light guide 6 can emit the reflected light from the second surface 62. Any shape is possible if possible.
（実施の形態２）
　実施の形態２においては、実施の形態１と導光体の形状等が異なる。図１１は、実施の形態２に係る表示装置の模式的部分断面図である。実施の形態２に係る表示装置１の構成について、実施の形態１と同様な構成については、同一の符号を付してその詳細な説明を省略する。 (Embodiment 2)
The second embodiment is different from the first embodiment in the shape of the light guide. FIG. 11 is a schematic partial cross-sectional view of the display device according to the second embodiment. About the structure of the display apparatus 1 which concerns on Embodiment 2, about the structure similar to Embodiment 1, the same code | symbol is attached | subjected and the detailed description is abbreviate | omitted.
　実施の形態２に係る表示装置１は、導光体８を備える。導光体８は、第１面８１、第２面８２、第３面８３及び第４面８４及び第５面８５を有する。第３面８３及び第２面８２は、一方向に長い矩形状をなし、互いに平行であり、第３面８３及び第２面８２に垂直な連設面８５ａにより連なっている。第２面８２は、ローレット加工により凹凸状に形成されている。したがって、実施の形態２における第２面８２は、全面が凹凸部となる。 The display device 1 according to Embodiment 2 includes a light guide 8. The light guide 8 has a first surface 81, a second surface 82, a third surface 83, a fourth surface 84, and a fifth surface 85. The third surface 83 and the second surface 82 have a rectangular shape that is long in one direction, are parallel to each other, and are connected by a continuous surface 85 a perpendicular to the third surface 83 and the second surface 82. The second surface 82 is formed in an uneven shape by knurling. Therefore, the entire second surface 82 in the second embodiment is an uneven portion.
　第３面８３及び第２面８２と、第４面８４とは、対向しており、第３面８３及び第４面８４の対向距離の方が長い。第４面８４は一方向に長い矩形状をなす。第１面８１は、第２面８２及び第４面８４に連なっており、第２面８２に対して鋭角をなしている。 The third surface 83 and the second surface 82 are opposed to the fourth surface 84, and the facing distance between the third surface 83 and the fourth surface 84 is longer. The fourth surface 84 has a rectangular shape that is long in one direction. The first surface 81 is continuous with the second surface 82 and the fourth surface 84, and forms an acute angle with respect to the second surface 82.
　第５面８５は、第４面に連なり、第３面８３に連設面８５ｂを介して連なっている。連設面８５ｂは第３面８３から垂直に張り出している。第５面８５は、第４面８４に対して鈍角をなし、連設面８５ｂに対して鈍角をなしている。また、第５面８５及び第２面８２のなす角度は鋭角である。 The fifth surface 85 is connected to the fourth surface, and is connected to the third surface 83 via the continuous surface 85b. The continuous surface 85 b projects vertically from the third surface 83. The fifth surface 85 has an obtuse angle with respect to the fourth surface 84 and an obtuse angle with respect to the continuous surface 85b. The angle formed by the fifth surface 85 and the second surface 82 is an acute angle.
　導光体８は、表示面２ａの周縁部の下辺側中央において、第２面８２がベゼル５に対向するように配される。第３面８３は、表示面２ａの外側に位置し、ＬＥＤ７１は、第３面８３に対向するように配される。第４面８４は被覆板４に接する。 The light guide 8 is arranged so that the second surface 82 faces the bezel 5 at the center of the lower side of the peripheral edge of the display surface 2a. The third surface 83 is located outside the display surface 2 a, and the LED 71 is disposed so as to face the third surface 83. The fourth surface 84 is in contact with the cover plate 4.
　ＬＥＤ７１の光は、第３面８３から入射し、第５面８５において反射し、第２面８２に到達する。第２面８２に到達した光は、第２面８２において拡散反射し、第１面８１から出射する。この場合においても、導光体８の発光の範囲及び方向は、実施の形態１と同様となる。 The light of the LED 71 enters from the third surface 83, is reflected by the fifth surface 85, and reaches the second surface 82. The light that reaches the second surface 82 is diffusely reflected on the second surface 82 and is emitted from the first surface 81. Also in this case, the light emission range and direction of the light guide 8 are the same as those in the first embodiment.
　以上の構成によれば、実施の形態１と同様に、導光体８の第１面８１からの出射光は第２面８２における反射光であるので、導光体８からの出射光による画像の品位の低下を防止できる。また、導光体８からの出射光と、表示パネル２が表示する画像との一体感を生じさせることができ、使用者に知覚させることができる。また、導光体８は、表示面２ａの周縁部に配されているので、表示面２ａに表示される画像の邪魔とはならず、導光体８からの出射光と表示面２ａ表示される画像との一体感が良好になる。 According to the above configuration, similarly to the first embodiment, the light emitted from the first surface 81 of the light guide 8 is the reflected light on the second surface 82, and thus the image by the light emitted from the light guide 8. Can be prevented from degrading. In addition, it is possible to produce a sense of unity between the light emitted from the light guide 8 and the image displayed on the display panel 2, which can be perceived by the user. Further, since the light guide 8 is arranged at the peripheral edge of the display surface 2a, it does not interfere with the image displayed on the display surface 2a, and the light emitted from the light guide 8 and the display surface 2a are displayed. Sense of unity with the image is improved.
　第２面８２及び第５面８５のなす角度は、鋭角であり、第３面８３から入射した光を屈折により、良好に第２面８２に進行させることができる。 The angle formed by the second surface 82 and the fifth surface 85 is an acute angle, and light incident from the third surface 83 can be favorably advanced to the second surface 82 by refraction.
（実施の形態３）
　実施の形態３においては、導光体６及び被覆板４との接着構造が、実施の形態１と異なる。図１２は、実施の形態３に係る表示装置の要部の模式的分解斜視図である。図１３は、実施の形態３に係る表示装置の模式的部分断面図である。実施の形態３に係る表示装置１の構成について、実施の形態１と同様の構成については、同一の符号を付してその詳細な説明を省略する。 (Embodiment 3)
In the third embodiment, the bonding structure between the light guide 6 and the cover plate 4 is different from that in the first embodiment. FIG. 12 is a schematic exploded perspective view of a main part of the display device according to the third embodiment. FIG. 13 is a schematic partial cross-sectional view of the display device according to the third embodiment. About the structure of the display apparatus 1 which concerns on Embodiment 3, about the structure similar to Embodiment 1, the same code | symbol is attached | subjected and the detailed description is abbreviate | omitted.
　実施の形態３の表示装置１は、矩形の板状の弾性部材９を備える。弾性部材９は、発泡ポリウレタン又は発泡ポリエチレン等、合成樹脂を発泡成形してなる部材からなり、外部から応力を加えることにより生じたひずみ（圧縮された状態）が除荷されると元の寸法に戻る応力を発揮する。 The display device 1 according to Embodiment 3 includes a rectangular plate-like elastic member 9. The elastic member 9 is a member formed by foaming a synthetic resin such as polyurethane foam or polyethylene foam, and returns to its original dimensions when the strain (compressed state) generated by applying stress from the outside is unloaded. Demonstrate returning stress.
　弾性部材９は、被覆板４の湾曲部４０の後面と、導光体６の第４面６４との間に介在してある。弾性部材９は、被覆板４の湾曲部４０と導光体６の第４面６４とによって挟持され、圧縮された状態となっている。弾性部材９の被覆板４側の一面は、湾曲部４０の曲面に沿って、湾曲している。又は、弾性部材９の被覆板４側の一面は、湾曲せず平坦であってもよい。 The elastic member 9 is interposed between the rear surface of the curved portion 40 of the cover plate 4 and the fourth surface 64 of the light guide 6. The elastic member 9 is sandwiched between the curved portion 40 of the cover plate 4 and the fourth surface 64 of the light guide 6 and is in a compressed state. One surface of the elastic member 9 on the cover plate 4 side is curved along the curved surface of the bending portion 40. Alternatively, one surface of the elastic member 9 on the cover plate 4 side may be flat without being curved.
　弾性部材９の長手方向の長さは、第４面６４の長手方向の長さと略同じに設定してある。又は、弾性部材９の長手方向の長さは、被覆板４の湾曲部４０の長手方向の長さと略同じに設定してあってもよい。弾性部材９の短手方向の長さは、第４面６４の短手方向の長さより短く設定してあり、弾性部材９は、第４面６４において第１面６１側に寄って配置してある。なお、弾性部材９の短手方向の長さは、第４面６４の短手方向の長さと略同じでもよい。弾性部材９の厚みは、被覆板４の湾曲部４０の後面と、導光体６の第４面６４との間の隙間の大きさよりも大きく設定してある。 The length of the elastic member 9 in the longitudinal direction is set to be substantially the same as the length of the fourth surface 64 in the longitudinal direction. Alternatively, the length in the longitudinal direction of the elastic member 9 may be set to be substantially the same as the length in the longitudinal direction of the curved portion 40 of the cover plate 4. The length of the elastic member 9 in the short direction is set to be shorter than the length of the fourth surface 64 in the short direction, and the elastic member 9 is disposed closer to the first surface 61 side on the fourth surface 64. is there. The length of the elastic member 9 in the short direction may be substantially the same as the length of the fourth surface 64 in the short direction. The thickness of the elastic member 9 is set to be larger than the size of the gap between the rear surface of the curved portion 40 of the cover plate 4 and the fourth surface 64 of the light guide 6.
　弾性部材９の被覆板４側の一面には、両面テープが貼付又は接着剤が塗布されており、接着機能を有し、弾性部材９の一面と、被覆板４の湾曲部４０の後面とは、接着してある。弾性部材９の他面、すなわち導光体６の第４面６４側の面には、両面テープが貼付又は接着剤が塗布されておらず、弾性部材９の他面と導光体６の第４面６４とは、当接してある。弾性部材９の色は、黒又はグレー等の暗褐色である。 Double-sided tape is applied or an adhesive is applied to one surface of the elastic member 9 on the cover plate 4 side, and has an adhesive function. The one surface of the elastic member 9 and the rear surface of the curved portion 40 of the cover plate 4 are It ’s glued. The other surface of the elastic member 9, that is, the surface on the fourth surface 64 side of the light guide 6 is not attached with a double-sided tape or an adhesive, and the other surface of the elastic member 9 and the light guide 6 The four surfaces 64 are in contact with each other. The color of the elastic member 9 is dark brown such as black or gray.
　図１３に示すごとく、被覆板４の湾曲部４０の後面上端部は、導光体６の第１面６１に向かって、弾性部材９の一面側の側部を覆うように突設してある。突設された後面上端部（突設部４１）は、被覆板４の前板４ａの上端部から突設してあり、突設部４１と前板４ａとによって、断面Ｌ字形状をなす。突設部４１は、導光体６の第１面６１と第４面６４とによって形成される稜線６４Ｅに近接する位置となるようにしてある。突設部４１は、導光体６の第１面６１と第４面６４との間に形成された切り欠き部に沿って形成してある。突設部４１の先端部の端面は、切り欠かれた領域の第４面６４に対向して、突設部４１は、第１面６１と第４面６４との間に形成された切り欠き部に対応して配されている。 As shown in FIG. 13, the rear surface upper end portion of the curved portion 40 of the cover plate 4 protrudes toward the first surface 61 of the light guide 6 so as to cover the side portion on the one surface side of the elastic member 9. . The rear surface upper end portion (protruding portion 41) that protrudes protrudes from the upper end portion of the front plate 4a of the cover plate 4, and the protruding portion 41 and the front plate 4a form an L-shaped cross section. The protruding portion 41 is positioned so as to be close to a ridge line 64 </ b> E formed by the first surface 61 and the fourth surface 64 of the light guide 6. The projecting portion 41 is formed along a notch formed between the first surface 61 and the fourth surface 64 of the light guide 6. The end surface of the tip portion of the projecting portion 41 faces the fourth surface 64 of the notched region, and the projecting portion 41 is a notch formed between the first surface 61 and the fourth surface 64. It is arranged corresponding to the part.
　弾性部材９を、被覆板４と導光体６との間に介在させることによって、ＬＥＤ７１からの出射光が被覆板４と導光体６との隙間から漏れる（光漏れ現象）を防止することができる。 By interposing the elastic member 9 between the cover plate 4 and the light guide 6, the light emitted from the LED 71 is prevented from leaking from the gap between the cover plate 4 and the light guide 6 (light leakage phenomenon). Can do.
　被覆板４の湾曲部４０と導光体６の第４面６４とによって弾性部材９を挟持し、弾性部材９を圧縮させた状態にしている。従って、被覆板４が熱によって膨張し、被覆板４の湾曲部４０と導光体６との隙間が広がった場合でも、圧縮された弾性部材９が復元することにより、隙間の広がりに対応し、光漏れ現象を防止することができる。 The elastic member 9 is sandwiched between the curved portion 40 of the covering plate 4 and the fourth surface 64 of the light guide 6 so that the elastic member 9 is compressed. Accordingly, even when the cover plate 4 expands due to heat and the gap between the curved portion 40 of the cover plate 4 and the light guide 6 widens, the compressed elastic member 9 is restored to cope with the widening of the gap. , Light leakage phenomenon can be prevented.
　弾性部材９と被覆板４とを接着し、弾性部材９と導光体６とは接着せず当接させた状態にすることによって、圧縮された弾性部材９が復元する際に、弾性部材９にかかる負荷を低減し、確実に光漏れ現象を防止することができる。ただし、弾性部材９の接着の態様は、これに限定されず、弾性部材９は、被覆板４の後面及び導光板の第４面６４の双方と接着してもよい。 When the elastic member 9 and the cover plate 4 are bonded, and the elastic member 9 and the light guide 6 are brought into contact with each other without being bonded, the elastic member 9 is restored when the compressed elastic member 9 is restored. It is possible to reduce the load applied to the light and reliably prevent the light leakage phenomenon. However, the mode of adhesion of the elastic member 9 is not limited to this, and the elastic member 9 may be bonded to both the rear surface of the cover plate 4 and the fourth surface 64 of the light guide plate.
　弾性部材９の色は、黒又はグレー等の暗褐色にしているので、ＬＥＤ７１からの出射光を吸収し、より確実に光漏れ現象を防止することができる。 Since the color of the elastic member 9 is dark brown such as black or gray, the light emitted from the LED 71 can be absorbed and the light leakage phenomenon can be prevented more reliably.
　被覆板４の湾曲部４０の後面上端部（突設部４１）は、弾性部材９の第１面６１側の側部を覆うように突設してあるので、弾性部材９は、表示装置１の外部から視認できないようにしてある。従って、表示装置１の美観を向上させることができる。突設部４１は、導光体６の第４面６４と第１面６１とによって形成される稜線６４Ｅに近接させた位置にしてあるので、第１面６１から出射させる光に影響を与えることはない。 Since the rear surface upper end portion (projecting portion 41) of the curved portion 40 of the covering plate 4 projects so as to cover the side portion of the elastic member 9 on the first surface 61 side, the elastic member 9 is the display device 1. Is not visible from the outside. Therefore, the aesthetics of the display device 1 can be improved. Since the protruding portion 41 is positioned close to the ridge line 64E formed by the fourth surface 64 and the first surface 61 of the light guide 6, it affects the light emitted from the first surface 61. There is no.
　なお、実施の形態１、実施の形態２及び実施の形態３において、第２面６２又は８２において、ローレット加工でなく、凹凸を有する型により成形して、凹凸形状を形成することとしてもよい。 In the first embodiment, the second embodiment, and the third embodiment, the second surface 62 or 82 may be formed not by knurling but by a mold having unevenness to form an uneven shape.
　また、第３面６３に対向するＬＥＤの個数は、一つに限られず、複数個であってもよい。この場合、複数個のＬＥＤは、ＬＥＤ基板上に導光体６の長手方向に沿って並べてもよい。また、種々の発光色のＬＥＤを組み合わせて使用してもよい。 Further, the number of LEDs facing the third surface 63 is not limited to one, and may be plural. In this case, the plurality of LEDs may be arranged along the longitudinal direction of the light guide 6 on the LED substrate. Moreover, you may use combining LED of various luminescent color.
　更に、導光体６は、表示パネル２の周縁部でなく、表示装置１の設計に伴って適宜の位置に配置してもよい。実施の形態１、実施の形態２及び実施の形態３に係る表示装置１は、テレビジョン受信機に用いられる構成でなく、インフォメーションディスプレイ、カーナビゲーションの表示画面又はパーソナルコンピュータに用いられる構成であってもよい。また、表示部としては、液晶パネル２だけでなく、プラズマディスプレイ又は有機ＥＬパネル等の表示パネルを用いてもよい。 Furthermore, the light guide 6 may be arranged at an appropriate position according to the design of the display device 1 instead of the peripheral portion of the display panel 2. The display device 1 according to the first embodiment, the second embodiment, and the third embodiment is not a configuration used for a television receiver, but a configuration used for an information display, a car navigation display screen, or a personal computer. Also good. As the display unit, not only the liquid crystal panel 2 but also a display panel such as a plasma display or an organic EL panel may be used.
　本開示の一実施形態に係る表示装置（１）は、前面（２ａ）に画像を表示する表示部（２）と、前記前面（２ａ）に対して前向きに延びる第１面（６１，８１）、該第１面（６１，８１）に連続し、前記前面（２ａ）に沿っており、凹凸部（６２ａ）を有する第２面（６２，８２）、及び該第２面（６２，８２）に連続する第３面（６３，８３）を有する導光体（６，８）と、前記第３面に対向する発光部（７１）とを備える。 A display device (1) according to an embodiment of the present disclosure includes a display unit (2) that displays an image on a front surface (2a), and a first surface (61, 81) that extends forward with respect to the front surface (2a). The second surface (62, 82) which is continuous with the first surface (61, 81) and is along the front surface (2a) and has the uneven portion (62a), and the second surface (62, 82). Are provided with a light guide (6, 8) having a third surface (63, 83) continuous with the light emitting portion (71) facing the third surface.
　本実施形態によれば、導光体（６，８）の第１面（６１，８１）からの出射光を第２面（６２，８２）における反射光とすることにより、導光体（６，８）からの出射光による画像の品位の低下を防止できる。また、導光体（６，８）からの出射光と表示面（２ａ）に表示される画像の一体感を生じさせることができる。 According to the present embodiment, the light emitted from the first surface (61, 81) of the light guide (6, 8) is reflected on the second surface (62, 82), whereby the light guide (6 8), it is possible to prevent deterioration of the image quality due to the light emitted from the light source. Further, it is possible to produce a sense of unity between the light emitted from the light guide (6, 8) and the image displayed on the display surface (2a).
　本開示の一実施形態に係る表示装置（１）は、前記導光体（６，８）は、前記前面（２ａ）の周縁部に配されていることを特徴とする。 The display device (1) according to an embodiment of the present disclosure is characterized in that the light guides (6, 8) are arranged on a peripheral portion of the front surface (2a).
　本実施形態によれば、良好に、導光体（６，８）の発光と表示面（２ａ）に表示される画像との一体感を生じさせることができる。 According to this embodiment, it is possible to satisfactorily produce a sense of unity between the light emission of the light guide (6, 8) and the image displayed on the display surface (2a).
　本開示の一実施形態に係る表示装置（１）は、前記第２面（６２）及び前記第３面（６３）がなす角度は鋭角であることを特徴とする。 The display device (1) according to an embodiment of the present disclosure is characterized in that an angle formed by the second surface (62) and the third surface (63) is an acute angle.
　本実施形態によれば、第３面（６３）から入射した光を良好に第２面（６２）に進行させることができる。 According to this embodiment, the light incident from the third surface (63) can be favorably advanced to the second surface (62).
　本開示の一実施形態に係る表示装置（１）は、前記第２面（６２）及び前記第３面（６３）がなす角度は３５度以上６０度以下であることを特徴とする。 The display device (1) according to an embodiment of the present disclosure is characterized in that an angle formed by the second surface (62) and the third surface (63) is not less than 35 degrees and not more than 60 degrees.
　本実施形態によれば、良好に、第３面（６３）から入射した光を良好に第２面（６２）に進行させることができる。また、第１面（６１）から出射する光の大きさを良好な大きさとすることができる。 According to this embodiment, the light incident from the third surface (63) can be favorably advanced to the second surface (62). Moreover, the magnitude | size of the light radiate | emitted from a 1st surface (61) can be made into a favorable magnitude | size.
　本開示の一実施形態に係る表示装置（１）は　前記第１面（６１）及び前記第３面（６３）は、前記第２面（６２）から張り出しており、前記第１面（６１）及び前記第３面（６３）の前記第２面（６２）からの張り出し幅は、中央部から両端部にかけて小さくなっていることを特徴とする。 In the display device (1) according to an embodiment of the present disclosure, the first surface (61) and the third surface (63) protrude from the second surface (62), and the first surface (61). And the overhang | projection width | variety from the said 2nd surface (62) of the said 3rd surface (63) is small from the center part to both ends.
　本実施形態によれば、デザイン性が向上する。 According to this embodiment, the design is improved.
　本開示の一実施形態に係る表示装置（１）は、前記第２面（６２，８２）が有する凹凸部（６２ａ）は、ローレット加工により形成されていることを特徴とする。 The display device (1) according to an embodiment of the present disclosure is characterized in that the uneven portion (62a) included in the second surface (62, 82) is formed by knurling.
　本実施形態によれば、凹凸部（６２ａ）を容易に形成することができる。 According to this embodiment, the concavo-convex portion (62a) can be easily formed.
　本開示の一実施形態に係る表示装置（１）は、前記導光体（６，８）を覆う被覆板（４）を備えることを特徴とする。 The display device (1) according to an embodiment of the present disclosure includes a covering plate (4) that covers the light guide (6, 8).
　本実施形態によれば、導光体（６，８）を前側から視認できないようにできるので、美観が向上する。 According to the present embodiment, the light guide (6, 8) can be prevented from being visually recognized from the front side, so that the beauty is improved.
　本開示の一実施形態に係る表示装置（１）は、前記導光体（６，８）は、前記第１面（６１，８１）に連続する第４面（６４，８４）を有し、前記第４面（６４，８４）と前記被覆板（４）によって挟持された弾性部材（９）を備えることを特徴とする。 In the display device (1) according to an embodiment of the present disclosure, the light guide (6, 8) has a fourth surface (64, 84) continuous to the first surface (61, 81). An elastic member (9) sandwiched between the fourth surface (64, 84) and the cover plate (4) is provided.
　本実施形態によれば、発光部（７１）等が発生する熱によって、被覆板（４）が膨張し被覆板（４）と導光体（６，８）とが離間した場合であっても、導光体（６，８）の第４面（６４，８４）と被覆板（４）によって挟持された弾性部材（９）が、形状を復元することで、被覆板の後面と導光体（６，８）の第４面との間の隙間を塞ぐことができる。従って、光漏れを防止することができる。 According to the present embodiment, even when the cover plate (4) expands due to heat generated by the light emitting section (71) and the cover plate (4) and the light guides (6, 8) are separated from each other. The elastic member (9) sandwiched between the fourth surface (64, 84) of the light guide (6, 8) and the cover plate (4) restores the shape so that the rear surface of the cover plate and the light guide The gap between the (6, 8) and the fourth surface can be closed. Therefore, light leakage can be prevented.
　本開示の一実施形態に係る表示装置（１）は、前記被覆板（４）の端部（４１）は、前記弾性部材（９）の第１面側の側部を覆うように、前記第１面に向かって突設してあることを特徴とする。 In the display device (1) according to the embodiment of the present disclosure, the end (41) of the covering plate (4) covers the side on the first surface side of the elastic member (9). It is characterized by projecting toward one surface.
　本実施形態によれば、被覆板（４）の端部（４１）は、弾性部材（９）の第１面（６１，８１）側の側部を覆うように第１面（６１，８１）に向かって突設してあるので、第１面（６１，８１）側から弾性部材（９）が視認できないようにしてある。従って、表示装置（１）の美観を向上することができる。 According to this embodiment, the end portion (41) of the cover plate (4) has the first surface (61, 81) so as to cover the side portion of the elastic member (9) on the first surface (61, 81) side. The elastic member (9) cannot be visually recognized from the first surface (61, 81) side. Therefore, the aesthetics of the display device (1) can be improved.
　本開示の一実施形態に係るに係るテレビジョン受信機は、上述の表示装置（１）と、テレビジョン放送を受信する受信部（１１）とを備え、前記受信部（１１）で受信したテレビジョン放送に基づいて前記表示部（２）に映像を表示するようにしてあることを特徴とする。 The television receiver which concerns on one Embodiment of this indication is equipped with the above-mentioned display apparatus (1), and the receiving part (11) which receives a television broadcast, The television received by the said receiving part (11) An image is displayed on the display unit (2) based on John broadcasting.
　本実施形態によれば、上述の表示装置（１）を用いることにより、テレビジョン受信機における画像との一体感を生じさせることが可能となる。 According to the present embodiment, by using the display device (1) described above, it is possible to create a sense of unity with the image in the television receiver.
　今回開示された実施の形態はすべての点で例示であって、制限的なものではないと考えられるべきである。本発明の範囲は、上記した意味ではなく、請求の範囲によって示され、請求の範囲と均等の意味及び範囲内でのすべての変更が含まれることが意図される。即ち、請求項に示した範囲で適宜変更した技術的手段を組み合わせて得られる実施形態も本発明の技術的範囲に含まれる。 It should be considered that the embodiment disclosed this time is illustrative in all respects and not restrictive. The scope of the present invention is defined not by the above-described meaning but by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims. That is, embodiments obtained by combining technical means appropriately changed within the scope of the claims are also included in the technical scope of the present invention.
　１　表示装置
　１１　チューナ（受信部）
　２　液晶パネル（表示部）
　２ａ　表示面（前面）
　４　被覆板
　４１　突設部（端部）
　６、８　導光体
　６１、８１　第１面
　６２、８２　第２面
　６２ａ　凹凸部
　６３、８３　第３面
　６４、８４　第４面
　６４Ｅ　稜線
　７１　ＬＥＤ（発光部）
　９　弾性部材 1 Display device 11 Tuner (receiver)
2 Liquid crystal panel (display unit)
2a Display surface (front)
4 Cover plate 41 Projection (end)
6, 8 Light guide 61, 81 1st surface 62, 82 2nd surface 62a Uneven part 63, 83 3rd surface 64, 84 4th surface 64E Ridge 71 LED (light emitting part)
9 Elastic members

Claims (10)

  1. 　前面に画像を表示する表示部と、
    　前記前面に対して前向きに延びる第１面、該第１面に連続し、前記前面に沿っており、凹凸部を有する第２面、及び該第２面に連続する第３面を有する導光体と、
    　前記第３面に対向する発光部と
    　を備える表示装置。     A display unit that displays an image on the front;
    A light guide having a first surface extending forward with respect to the front surface, a second surface that is continuous with the first surface, has a concavo-convex portion along the front surface, and a third surface that is continuous with the second surface. Body,
    A display device comprising: a light emitting unit facing the third surface.
  2. 　前記導光体は、前記前面の周縁部に配されていることを特徴とする請求項１に記載の表示装置。 The display device according to claim 1, wherein the light guide is disposed on a peripheral portion of the front surface.
  3. 　前記第２面及び前記第３面がなす角度は鋭角であることを特徴とする請求項１又は請求項２に記載の表示装置。 3. The display device according to claim 1, wherein an angle formed by the second surface and the third surface is an acute angle.
  4. 　前記第２面及び前記第３面がなす角度は３５度以上６０度以下であることを特徴とする請求項３に記載の表示装置。 The display device according to claim 3, wherein an angle formed by the second surface and the third surface is not less than 35 degrees and not more than 60 degrees.
  5. 　前記第１面及び前記第３面は、前記第２面から張り出しており、
    　前記第１面及び前記第３面の前記第２面からの張り出し幅は、中央部から両端部にかけて小さくなっていることを特徴とする請求項１から請求項４までのいずれか一つに記載の表示装置。     The first surface and the third surface protrude from the second surface,
    5. The overhanging width of the first surface and the third surface from the second surface is reduced from the central portion to both end portions. 6. Display device.
  6. 　前記第２面が有する凹凸部は、ローレット加工により形成されていることを特徴とする請求項１から請求項５までのいずれか一つに記載の表示装置。 The display device according to any one of claims 1 to 5, wherein the uneven portion of the second surface is formed by knurling.
  7. 　前記導光体を覆う被覆板を備えることを特徴とする請求項１から請求項６までのいずれか一つに記載の表示装置。 The display device according to any one of claims 1 to 6, further comprising a covering plate that covers the light guide.
  8. 　前記導光体は、前記第１面に連続する第４面を有し、
    　前記第４面と前記被覆板によって挟持された弾性部材を備えることを特徴とする請求項７に記載の表示装置。     The light guide has a fourth surface continuous to the first surface;
    The display device according to claim 7, further comprising an elastic member sandwiched between the fourth surface and the cover plate.
  9. 　前記被覆板の端部は、前記弾性部材の前記第１面側の側部を覆うように、前記第１面に向かって突設してあることを特徴とする請求項８に記載の表示装置。 The display device according to claim 8, wherein an end portion of the covering plate protrudes toward the first surface so as to cover a side portion of the elastic member on the first surface side. .
  10. 　請求項１から請求項９のいずれか１つに記載の表示装置と、
    　テレビジョン放送を受信する受信部と
    　を備え、
    　前記受信部で受信したテレビジョン放送に基づいて前記表示部に映像を表示するようにしてあることを特徴とするテレビジョン受信機。     A display device according to any one of claims 1 to 9,
    A receiver for receiving television broadcasts,
    A television receiver, wherein an image is displayed on the display unit based on the television broadcast received by the receiving unit.
PCT/JP2018/002346 2017-02-21 2018-01-25 Display device and television receiver WO2018155065A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2017-030081 2017-02-21
JP2017030081 2017-02-21
JP2017168901A JP6368838B1 (en) 2017-02-21 2017-09-01 Display device and television receiver
JP2017-168901 2017-09-01

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08241044A (en) * 1995-03-03 1996-09-17 Nec Corp Liquid crystal display device
JP2002082634A (en) * 2000-09-07 2002-03-22 Sharp Corp Display device
JP2005265929A (en) * 2004-03-16 2005-09-29 Sharp Corp Display device
US20110051019A1 (en) * 2009-09-03 2011-03-03 Sony Corporation Edge lighting control
JP2011123406A (en) * 2009-12-14 2011-06-23 Denso Corp Liquid crystal display apparatus for vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08241044A (en) * 1995-03-03 1996-09-17 Nec Corp Liquid crystal display device
JP2002082634A (en) * 2000-09-07 2002-03-22 Sharp Corp Display device
JP2005265929A (en) * 2004-03-16 2005-09-29 Sharp Corp Display device
US20110051019A1 (en) * 2009-09-03 2011-03-03 Sony Corporation Edge lighting control
JP2011123406A (en) * 2009-12-14 2011-06-23 Denso Corp Liquid crystal display apparatus for vehicle

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TWI654598B (en) 2019-03-21
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JP6368838B1 (en) 2018-08-01

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