JP2015203707A - display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device capable of heightening the fine sight of a front casing.SOLUTION: A display device comprises a liquid crystal panel 10 having a display face 36, a rear cabinet 8 covering the rear face 10a of the liquid crystal panel 10, a front cabinet 6 having a front part 40 covering the outer circumference of the display face 36 and a circumferential part 42 extending from the outer circumference of the front part 40 to the rear cabinet 8 side and covering the outer circumference 10c of the liquid crystal panel 10, and a screw 38 for fastening the rear cabinet 8 and the front cabinet 6 with each other. The rear cabinet 8 has an open hole 54 through which the screw 38 is inserted from the rear cabinet 8 side toward the front cabinet 6 side, and the front cabinet 6 further has a boss 46 provided on the inner face 42a of the circumferential part 42 and to which the screw 38 inserted into the open hole 54 is fastened, and a rib 50 provided on the inner face 42a of the circumferential part 42 and extending from the boss 46 toward the inner face 40a of the front part 40.

Description

  The present invention relates to a display device for displaying an image.

  As a display device for displaying an image, for example, a liquid crystal television receiver is known (for example, see Patent Document 1). A liquid crystal panel having a display surface on the surface is disposed inside the housing of the liquid crystal television receiver. The above-described housing has a rear cabinet (which constitutes a back housing) and a front cabinet (which constitutes a front housing), which are formed of resin. The rear cabinet is arranged so as to cover the entire back surface of the liquid crystal panel. The front cabinet has a front surface portion and a peripheral surface portion. The front portion is disposed so as to cover the outer peripheral portion of the display surface of the liquid crystal panel. The peripheral surface portion extends from the outer peripheral portion of the front surface portion to the rear cabinet side and is disposed so as to cover the outer peripheral surface of the liquid crystal panel.

  The rear cabinet is provided with a through hole for inserting a screw. A boss having a screw hole is provided on the inner surface of the front portion of the front cabinet. The screw is inserted into the through hole from the rear cabinet side toward the front cabinet side, and then screwed into the screw hole of the boss. Thereby, a front cabinet and a rear cabinet are mutually fastened.

JP2013-156525A

  In the conventional liquid crystal television receiver described above, the following problems arise due to the bosses provided on the inner surface of the front portion of the front cabinet. As described above, when the screw is screwed into the screw hole of the boss, the boss is pulled to the rear cabinet side, so that the outer surface of the front portion (that is, the surface exposed to the outside of the liquid crystal television receiver) A slight depression will occur in the part corresponding to the boss. Since the outer surface of the front portion is the most visible part of the user, the above-described depression causes a problem that the aesthetic appearance of the front cabinet is impaired. In particular, when gloss coating is applied to the outer surface of the front cabinet in order to enhance the design, the above-described depression becomes more conspicuous, and the aesthetic appearance of the front cabinet is greatly impaired.

  The present invention is intended to solve the above-described problems, and an object thereof is to provide a display device that can enhance the aesthetic appearance of the front casing.

  In order to achieve the above object, a display device according to one embodiment of the present invention is a display device for displaying an image, and includes a display panel having a display surface for displaying the image on a front surface, and the display panel. A rear housing covering the back surface, a front surface covering the outer periphery of the display surface, and a peripheral surface extending from the outer periphery of the front surface to the rear housing and covering the outer peripheral surface of the display panel. And a fastening member that fastens the back housing and the front housing to each other, and the fastening member is inserted into the back housing from the back housing side toward the front housing side. The front housing is further provided on the inner surface of the peripheral surface portion, and a boss to which the fastening member inserted into the through hole is fastened; and the inner surface of the peripheral surface portion. Provided from the boss to the inner surface of the front portion. Only has a rib extending, the.

  According to this aspect, since the boss is provided on the inner surface of the peripheral surface portion, when the fastening member is fastened to the boss, the force for pulling the boss toward the rear housing does not act on the front surface portion. As a result, it is possible to suppress the formation of a slight depression in the portion corresponding to the boss in the outer surface of the front surface portion, and to enhance the aesthetic appearance of the front housing. Furthermore, since the rib which extends toward the inner surface of the front surface portion from the boss is provided on the inner surface of the peripheral surface portion, the strength of the boss in the direction in which the fastening member is fastened can be increased. Thereby, when the fastening member is fastened to the boss, the connection strength between the boss and the inner surface of the peripheral surface portion can be kept strong even if the boss is pulled into the rear housing side.

  For example, in the display device according to one aspect of the present invention, the rib may be configured to extend substantially parallel to a direction in which the fastening member is fastened.

  According to this aspect, since the rib extends substantially parallel to the direction in which the fastening member is fastened, the strength of the boss in the direction in which the fastening member is fastened can be effectively increased.

  For example, in the display device according to one aspect of the present invention, the rib may be configured to extend from the boss to the inner surface of the front portion.

  According to this aspect, since the rib extends from the boss to the inner surface of the front surface portion, the strength of the boss in the direction in which the fastening member is fastened can be effectively increased.

  For example, in the display device according to an aspect of the present invention, the front housing further includes a chamfered surface formed between the inner surface of the front surface portion and the inner surface of the peripheral surface portion, The rib may be configured to extend from the boss to the inner surface of the front portion via the chamfered surface.

  According to this aspect, since the rib extends from the boss to the inner surface of the front portion via the chamfered surface, the strength of the boss in the direction in which the fastening member is fastened can be further effectively increased.

  For example, in the display device according to one aspect of the present invention, the rear housing further protrudes from the inner surface of the rear housing toward the front housing and extends along the outer peripheral portion of the rear housing. The front housing may further include a slit that is provided between the boss and the inner surface of the peripheral surface portion and into which the protrusion is inserted. Good.

  According to this aspect, by inserting the protruding portion of the rear housing into the slit of the front housing, when the fastening member is fastened to the boss, the force in the rotational direction of the fastening member acts on the boss. be able to. Thereby, the connection intensity | strength with a boss | hub and the inner surface of a surrounding surface part can be kept strong.

  According to the display device of one embodiment of the present invention, the aesthetic appearance of the front housing can be enhanced.

1 is a perspective view illustrating an appearance of a display device according to Embodiment 1. FIG. FIG. 3 is an exploded perspective view showing a state where the display device according to Embodiment 1 is disassembled. It is a perspective view which shows the inner surface side of a front cabinet. It is a perspective view which expands and shows the part enclosed with the broken line in FIG. It is sectional drawing of the display apparatus by the AA line in FIG. It is a disassembled cross-sectional perspective view of the display apparatus by the AA line in FIG. 10 is a perspective view showing a fastening structure of a front cabinet and a rear cabinet of a display device according to Embodiment 2. FIG. It is a disassembled cross-sectional perspective view which shows the fastening structure of the front cabinet of FIG. 7, and a rear cabinet. It is a disassembled cross-sectional perspective view of the display apparatus which concerns on a modification.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Each of the embodiments described below shows a preferred specific example of the present invention. The numerical values, shapes, materials, constituent elements, arrangement positions and connecting forms of the constituent elements shown in the following embodiments are merely examples, and are not intended to limit the present invention. The invention is specified by the claims. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims are not necessarily required to achieve the object of the present invention, but are described as constituting more preferable embodiments. Is done.

(Embodiment 1)
[Overall structure of display device]
First, the entire structure of the display device 2 according to the first embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view showing an appearance of the display device according to the first embodiment. FIG. 2 is an exploded perspective view illustrating a state in which the display device according to Embodiment 1 is disassembled.

  As shown in FIGS. 1 and 2, the display device 2 of the present embodiment is a liquid crystal television receiver, for example, and includes a housing 4. The case 4 is configured by fastening a front cabinet 6 (which constitutes a front case) and a rear cabinet 8 (which constitutes a back case) to each other.

  The front cabinet 6 is configured in a rectangular frame shape, and is disposed so as to cover an outer peripheral portion of a liquid crystal panel 10 (which configures a display panel) described later. The front cabinet 6 is made of, for example, resin.

  The rear cabinet 8 is configured in a box shape, and is disposed so as to cover the entire back surface 10a (see FIG. 5 described later) of the liquid crystal panel 10. The rear cabinet 8 is made of, for example, resin. A stand 12 for supporting the housing 4 from below is attached to the lower end portion of the rear cabinet 8.

  Note that the display device 2 of the present embodiment is characterized by the fastening structure of the front cabinet 6 and the rear cabinet 8. The fastening structure of the front cabinet 6 and the rear cabinet 8 will be described in detail later.

  2, in addition to the liquid crystal panel 10 described above, a rear frame 13, a backlight unit 14, a diffuser plate 16, a pair of optical sheets 18, 20, and four cell guides are provided inside the housing 4. 22a-22d and four bezels 24a-24d are arranged.

  The rear frame 13 is disposed so as to cover the inner surface 8 a of the rear cabinet 8.

  The backlight unit 14 is a direct-type backlight unit and is for irradiating light toward the back surface 10 a of the liquid crystal panel 10. The backlight unit 14 includes a reflection sheet 26 and an LED bar 28.

  The reflection sheet 26 is disposed so as to cover the inner surface of the rear frame 13. The reflection sheet 26 is for reflecting the light from the LED bar 28 toward the back surface 10 a of the liquid crystal panel 10. The reflection sheet 26 is made of, for example, acrylic resin.

  The LED bar 28 includes a wiring board 30 and a plurality of LEDs 32 mounted on the wiring board 30. The wiring board 30 is configured in a long plate shape. The wiring board 30 is made of a metal having high thermal conductivity, such as aluminum. The wiring board 30 is disposed on the rear frame 13. The plurality of LEDs 32 are arranged in a line and at intervals in the longitudinal direction of the wiring board 30. Each of the plurality of LEDs 32 is inserted into a hole 26 a provided in the reflection sheet 26.

  The diffusing plate 16 is formed in a substantially rectangular thin plate shape, and is disposed between the backlight unit 14 and the liquid crystal panel 10. The diffusion plate 16 is for diffusing the light from the backlight unit 14 toward the back surface 10 a of the liquid crystal panel 10. A support member 34 for supporting the diffusion plate 16 is disposed on the rear frame 13. The support member 34 extends through the reflection sheet 26 toward the diffusion plate 16.

  The pair of optical sheets 18 and 20 are arranged so as to cover the diffusion plate 16 in a state of being overlapped with each other. Each of the pair of optical sheets 18 and 20 is, for example, for guiding the light diffused by the diffusion plate 16 to the back surface 10 a of the liquid crystal panel 10.

  Each of the four cell guides 22a to 22d has a long shape. The four cell guides 22a to 22d are configured as a rectangular frame as a whole by being combined with each other. The four cell guides 22 a to 22 d combined in a frame shape are attached to the outer peripheral portion of the rear frame 13.

  The liquid crystal panel 10 is configured in a rectangular panel shape. A display surface 36 on which an image is displayed is formed on the front surface 10 b of the liquid crystal panel 10. The outer peripheral part on the back surface 10a side of the liquid crystal panel 10 is supported by four cell guides 22a to 22d combined in a frame shape. The light from the backlight unit 14 irradiates the back surface 10 a of the liquid crystal panel 10, whereby an image is displayed on the display surface 36 of the liquid crystal panel 10.

  Each of the four bezels 24a to 24d is formed in a long shape. The four bezels 24a to 24d are combined with each other to form a rectangular frame as a whole. The four bezels 24a to 24d combined in a frame shape support the outer peripheral portion of the liquid crystal panel 10 on the front surface 10b side.

[Fast cabinet and rear cabinet fastening structure]
Next, the fastening structure of the front cabinet 6 and the rear cabinet 8 will be described with reference to FIGS. FIG. 3 is a perspective view showing the inner surface side of the front cabinet. 4 is an enlarged perspective view showing a portion surrounded by a broken line in FIG. FIG. 5 is a cross-sectional view of the display device taken along line AA in FIG. FIG. 6 is an exploded cross-sectional perspective view of the display device taken along line AA in FIG. In FIGS. 5 and 6, for the convenience of explanation, illustration of configurations other than the front cabinet 6, the rear cabinet 8, the liquid crystal panel 10, and the screws 38 (which constitute a fastening member) is omitted.

  As shown in FIGS. 3 to 6, the front cabinet 6 has a front surface portion 40 and a peripheral surface portion 42. The front surface portion 40 is disposed so as to cover the outer peripheral portion of the display surface 36 of the liquid crystal panel 10. The peripheral surface portion 42 extends from the outer peripheral portion of the front surface portion 40 toward the rear cabinet 8 and is disposed so as to cover the outer peripheral surface 10 c of the liquid crystal panel 10. As shown in FIGS. 4 to 6, a chamfered surface 44 is formed between the inner surface 40 a of the front surface portion 40 and the inner surface 42 a of the circumferential surface portion 42. In the present embodiment, the chamfered surface 44 is a C surface.

  The outer surface of the front cabinet 6 (that is, the surface exposed to the outside of the display device 2), specifically, the outer surface 40b of the front surface portion 40 and the outer surface 42b of the peripheral surface portion 42 are each coated with gloss. .

  As shown in FIG. 3, a plurality of bosses 46 are provided on the inner surface 42 a of the peripheral surface portion 42. The plurality of bosses 46 are arranged at intervals along the circumferential direction of the front cabinet 6. Each of the plurality of bosses 46 is formed integrally with the front cabinet 6.

  As shown in FIGS. 4-6, the boss | hub 46 has the base part 46a, the screw receiving part 46b, and the connection part 46c. The pedestal portion 46 a is configured in a plate shape, and extends substantially perpendicularly from the inner surface 42 a of the peripheral surface portion 42 to the peripheral surface portion 42. The screw receiving portion 46b is formed in a substantially cylindrical shape, extends from the pedestal portion 46a to the rear cabinet 8 side, and is connected to the inner surface 42a of the peripheral surface portion 42. A screw hole 48 for screwing the screw 38 is provided in the screw receiving portion 46b. The screw hole 48 extends in the direction (Z-axis direction) from the rear cabinet 8 side toward the front cabinet 6 side. The connection portion 46c is for reinforcing the connection between the base portion 46a and the screw receiving portion 46b and the inner surface 42a of the peripheral surface portion 42.

  As shown in FIGS. 4 and 6, a rib 50 is further provided on the inner surface 42 a of the peripheral surface portion 42. The rib 50 extends from the pedestal portion 46 a toward the inner surface 40 a of the front surface portion 40 along the inner surface 42 a of the peripheral surface portion 42. More specifically, the rib 50 extends in the direction in which the screw 38 is fastened (Z-axis direction) and extends from the pedestal portion 46 a to the inner surface 40 a of the front surface portion 40 via the chamfered surface 44. The rib 50 is a reinforcing rib for increasing the strength of the boss 46 in the direction in which the screw 38 is fastened. For example, when the wall thickness t1 of the front cabinet 6 is about 2.3 mm, the wall thickness t2 of the rib 50 is about 0.9 mm.

  As shown in FIGS. 5 and 6, a recess 52 for accommodating the head 38 a of the screw 38 is provided at a portion corresponding to the boss 46 on the outer peripheral portion of the rear cabinet 8. A portion corresponding to the recess 52 of the rear cabinet 8 is provided with a through hole 54 penetrating the rear cabinet 8 in a direction (Z-axis direction) from the rear cabinet 8 side toward the front cabinet 6 side.

  After the screw 38 is inserted into the through hole 54 in the direction from the rear cabinet 8 side to the front cabinet 6 side, the front cabinet 6 and the rear cabinet 8 are fastened to each other by screwing into the screw hole 48 of the boss 46. The

  In the case where the screw 38 is a tapping screw, the female screw portion is not formed in the screw hole 48 before the screw 38 is screwed. On the other hand, if the screw 38 is not a tapping screw, a female screw portion may be formed in advance in the screw hole 48.

[effect]
Next, effects obtained by the display device 2 of the present embodiment will be described. When the screw 38 is screwed into the screw hole 48 of the boss 46, the boss 46 is pulled to the rear cabinet 8 side as shown by the arrow in FIG. As described above, since the boss 46 is provided on the inner surface 42 a of the peripheral surface portion 42, the force that pulls the boss 46 toward the rear cabinet 8 does not act on the front surface portion 40. As a result, it is possible to prevent a slight depression from occurring in a portion corresponding to the boss 46 in the outer surface 40b of the front surface portion 40, and to enhance the aesthetic appearance of the front cabinet 6.

  Furthermore, as described above, since the rib 50 is provided on the inner surface 42a of the peripheral surface portion 42, the strength of the boss 46 in the direction in which the screw 38 is fastened can be increased. Thereby, when the screw 38 is screwed into the screw hole 48 of the boss 46, the connection strength between the boss 46 and the inner surface 42 a of the peripheral surface portion 42 is increased even if the boss 46 is pulled into the rear cabinet 8 side. It can be kept strong. In particular, since the rib 50 extends from the pedestal portion 46a to the inner surface 40a of the front surface portion 40 via the chamfered surface 44, the strength of the boss 46 in the direction in which the screw 38 is fastened can be further effectively increased. it can.

(Embodiment 2)
Next, the configuration of the display device 2A according to the second embodiment will be described with reference to FIGS. FIG. 7 is a perspective view showing a fastening structure of a front cabinet and a rear cabinet of the display device according to the second embodiment. 8 is an exploded cross-sectional perspective view showing a fastening structure of the front cabinet and the rear cabinet of FIG. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIGS. 7 and 8, in the front cabinet 6A of the display device 2A of the present embodiment, a slit 56 is provided between the boss 46A (connection portion 46Ac) and the inner surface 42a of the peripheral surface portion 42. The slit 56 extends along the outer periphery of the front cabinet 6A.

  Furthermore, the protrusion part 58 is provided in the site | part corresponding to the boss | hub 46A of inner surface 8Aa of the rear cabinet 8A. The protruding portion 58 protrudes from the inner surface 8Aa of the rear cabinet 8A toward the front cabinet 6A, and extends along the outer peripheral portion of the rear cabinet 8A. When the front cabinet 6 </ b> A and the rear cabinet 8 </ b> A are fastened together, the protruding portion 58 is inserted into the slit 56.

  Thereby, when the screw 38 is screwed into the screw hole 48 of the boss 46A, it is possible to suppress the force in the rotation direction of the screw 38 (the direction indicated by the arrow in FIG. 7) from acting on the boss 46A. As a result, the connection strength between the boss 46A and the inner surface 42a of the peripheral surface portion 42 can be kept strong.

(Modification)
Although the display devices according to Embodiments 1 and 2 of the present invention have been described above, the present invention is not limited to these embodiments. For example, the first and second embodiments may be combined.

  In each of the embodiments described above, the chamfered surface 44 is formed between the inner surface 40a of the front surface portion 40 and the inner surface 42a of the peripheral surface portion 42. However, as in the display device 2B shown in FIG. May be omitted. In this case, the rib 50B extends from the pedestal portion 46a to the inner surface 40a of the front surface portion 40. Even if it is a structure like FIG. 9, the intensity | strength of the boss | hub 46 in the direction in which the screw | thread 38 is fastened can be raised. The rib 50B may be provided only on the inner surface 42a of the peripheral surface portion 42.

  Further, instead of the configuration as shown in FIG. 9, a chamfered surface 44 is added as shown in FIG. By extending, the strength of the boss 46 in the direction in which the screw 38 is fastened can be further increased.

  In each of the above embodiments, the case where the display device 2 (2A) is a liquid crystal television receiver has been described. However, the present invention is not limited to this. The display device 2 (2A) may be a liquid crystal monitor for a personal computer, for example.

  In each said embodiment, although the chamfering surface 44 was comprised by C surface, it is not limited to this, For example, you may comprise the chamfering surface 44 by R surface.

  In each of the above embodiments, only one rib 50 is provided for one boss 46 (46A). However, the present invention is not limited to this, and a plurality of ribs 50 are provided for one boss 46 (46A). It may be provided. Thereby, the strength of the boss 46 (46A) in the direction in which the screw 38 is fastened can be further effectively increased.

  The display device of the present invention can be applied as, for example, a liquid crystal television receiver.

2, 2A, 2B Display device 4 Housing 6, 6A, 6B Front cabinet 8, 8A Rear cabinet 8a, 8Aa Inner surface 10 Liquid crystal panel 10a Rear surface 10b Front surface 10c Outer peripheral surface 12 Stand 13 Rear frame 14 Backlight unit 16 Diffuser 18 20 Optical sheet 22a, 22b, 22c, 22d Cell guide 24a, 24b, 24c, 24d Bezel 26 Reflective sheet 26a Hole 28 LED bar 30 Wiring board 32 LED
34 support member 36 display surface 38 screw 38a head 40 front surface portion 40a, 42a inner surface 40b, 42b outer surface 42 peripheral surface portion 44 chamfered surface 46, 46A boss 46a pedestal portion 46b screw receiving portion 46c, 46Ac connection portion 48 screw hole 50, 50B Ribs 52 Recesses 54 Through holes 56 Slits 58 Projections

Claims (5)

A display device for displaying an image,
A display panel having a display surface for displaying the image on the front surface;
A back housing covering the back of the display panel;
A front case having a front part covering the outer peripheral part of the display surface, and a peripheral part extending from the outer peripheral part of the front part to the rear case side and covering the outer peripheral face of the display panel;
A fastening member for fastening the back housing and the front housing to each other,
The rear housing has a through hole into which the fastening member is inserted from the rear housing side toward the front housing side,
The front housing further includes
A boss provided on the inner surface of the peripheral surface portion and to which the fastening member inserted into the through hole is fastened;
A rib provided on the inner surface of the peripheral surface portion and extending from the boss toward the inner surface of the front surface portion. The display device according to claim 1, wherein the rib extends substantially parallel to a direction in which the fastening member is fastened. The display device according to claim 1, wherein the rib extends from the boss to the inner surface of the front portion. The front housing further has a chamfered surface formed between the inner surface of the front surface portion and the inner surface of the peripheral surface portion,
The display device according to claim 3, wherein the rib extends from the boss to the inner surface of the front portion via the chamfered surface. The rear case further has a protrusion that protrudes from the inner surface of the rear case toward the front case and extends along the outer periphery of the rear case,
The display according to claim 1, wherein the front housing further includes a slit provided between the boss and the inner surface of the peripheral surface portion and into which the protruding portion is inserted. apparatus.

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