JP6222201B2 - Display device and electronic device - Google Patents

Description

  The embodiment relates to an electronic device in which an LCD is accommodated in a housing.

  An information processing device such as a notebook personal computer often uses an LCD as a display device. The LCD panel is accommodated in the housing of the information processing device, and only the display surface of the LCD panel is exposed from the housing. In recent years, thinning of information processing devices has been promoted, and the housing itself that houses the LCD is also required to be thin.

  For example, a display unit of a notebook personal computer is a part that mainly accommodates an LCD, and has a configuration in which an LCD panel is accommodated in a housing. The housing of the display unit is usually divided into a front cover formed so that the display surface is exposed and a back cover formed so as to cover the back surface of the LCD panel. With the LCD housed on the front cover side, attach the back cover to the front cover and fix it. The back cover is usually fixed to the front cover by screws.

  For example, after attaching the LCD to the front cover, the display unit is formed by screwing the four corners of the back cover to the front cover. In the housing of the display unit having such a configuration, the mating surface of the front cover and the back cover extends to a position near the side surface of the LCD panel.

  However, as the display unit becomes thinner and the brightness of the LCD increases, the light leaked from the side surface of the LCD panel leaks to the outside of the display unit casing through the gap between the mating surfaces of the front cover and the back cover. There is a fear.

  Here, when the back cover of the LCD is divided and formed, a structure has been proposed in which overlapping portions are provided on the mating surfaces of the divided back covers to prevent light leakage from the joints (for example, Patent Documents). 1).

JP 2004-317919 A

  As described above, when the front cover and the back cover are fixed with screws, the mating surface of the front cover and the back cover is perpendicular to the side surface of the LCD panel, and there is a slight gap between the mating surfaces. From there, light leaks easily. If the number of screwing points is increased so that the mating surfaces come into contact with each other with no gap, the manufacturing cost will increase accordingly. In addition, since a screwing structure must be incorporated, the thickness of the housing itself may increase, which hinders thinning of the device.

  Therefore, there is a demand for the development of a display device that can prevent light leakage from the housing while reducing the number of screwing points.

According to one embodiment, a display device that accommodates a display panel therein, the first casing having an opening that exposes a display surface of the display panel, to which the display panel is attached, and the display And a second casing attached to the first casing so as to cover the back surface of the panel, and a folded portion is formed at one end of the first casing and the second casing. The other tip of the first casing and the second casing has an insertion portion that is inserted into the inner surface side of the folded portion, and the first casing and the second casing while the inner engagement claws are formed along the both side walls, wherein the other of the first housing and the second housing, along both sides of the side walls, the engagement claws engaging portion engaged is formed on the such that the insertion portion is inserted into the inner surface of the front Symbol folded portion A shall the engagement claw is engaged with the engaging portion of the first housing and the second housing in operation to move, the folded portion has a rib, the insertion portion has a slit, when the first housing and the second housing are assembled, the ribs that match fitted in the slit display apparatus is provided.

  In addition, an electronic apparatus including a main body provided with an operation unit and a display unit rotatably supported by the main body unit, the display unit including the display device described above is provided.

  According to the embodiment, it is possible to provide a display device that can prevent light leakage from the inside of the housing while reducing the number of screwing points.

1 is a perspective view of a notebook personal computer (notebook computer) having a display device according to an embodiment. FIG. 6 is an exploded perspective view of a display device when an LCD housing is formed by assembling a front cover and a back cover. FIG. 3 is a cross-sectional view of the display device taken along line III-III in FIG. 2. It is an expanded sectional view of the front-end | tip part of the display apparatus along the IV-IV line | wire of FIG. It is a top view which shows the slit of a front cover, and the rib of a back cover. It is sectional drawing along the VI-VI line in FIG. It is a top view of the slit and rib which have a taper-shaped planar shape. It is sectional drawing of the slit and rib which have a reverse taper-shaped cross-sectional shape. It is sectional drawing of the screwing part along the IX-IX line of FIG. It is a top view which shows the inner side of a front cover. It is a top view which shows the inner side of a back cover. It is sectional drawing which shows the state which the engagement nail | claw engaged with the engaging part. It is a perspective view which shows the state before engaging an engaging claw with an engaging part. It is a perspective view which shows the shape of an engaging claw and an engaging part in the case of engaging an engaging claw from the upper part of an engaging part. It is a perspective view at the time of attaching the front cover of the shape where the front-end | tip part was turned, and a back cover. It is sectional drawing of the front-end | tip part of the front cover shown in FIG.

  Next, embodiments will be described with reference to the drawings.

  FIG. 1 is a perspective view of a notebook personal computer (notebook personal computer) having a display device according to an embodiment. A notebook type personal computer 10 shown in FIG. 1 is an example of an electronic apparatus having a display device using an LCD panel as an example of a display panel, and this embodiment is not limited to a notebook type personal computer. The display panel is not limited to the LCD panel, and may be another display panel such as an EL panel.

  The notebook computer 10 includes a main body 12 provided with an input operation unit, and a display device 14 supported so as to be rotatable with respect to the main body 12. The display device 14 has an LCD housing 16, and an LCD panel (liquid crystal display panel) 18 is housed in the LCD housing 16 as a display panel.

  The LCD housing 16 of the display device 14 is formed by a front cover 20 and a back cover 30. The LCD panel 18 is accommodated in the LCD housing 16 formed by the front cover 20 and the back cover 30, and the display surface of the LCD panel 18 is exposed to the outside through the opening of the front cover 20. In the present embodiment, the front cover 20 and the back cover 30 are made of resin, but may be made of metal such as magnesium alloy.

  FIG. 2 is an exploded perspective view of the display device 14 when the front cover 20 and the back cover 30 are assembled to form the LCD housing 16. In FIG. 2, the LCD panel 18 is attached to the inside of the back cover 30, and the display surface of the LCD panel 18 is exposed in the opening of the front cover 20. By assembling the front cover 20 to the back cover 30 to which the LCD panel 18 is attached, the LCD housing case 16 in which the LCD panel 18 is housed is formed.

  The LCD housing case 16 is divided into two at the center when viewed from the side, and one of the divided portions is the front cover 20 and the other is the back cover 30. The entire front end of the LCD housing case 16 is a part of the back cover 30, and the front cover 20 does not extend to the front end of the LCD housing case 16. That is, the front end portion 32 of the back cover 30 is folded back toward the front cover 20, and the end portion that is folded back and faces the front cover 20 is a mating surface 30 a that abuts the mating surface 20 of the front cover 20. . Therefore, the mating surfaces 20 a and 30 a of the front cover 20 and the back cover 30 are located in a portion that enters inside from the front end of the LCD housing 16.

  The mating surfaces of the front cover 20 and the back cover 30 will be described with reference to FIGS. 3 and 4. FIG. 3 is a cross-sectional view of the display device 14 taken along line III-III in FIG. FIG. 4 is an enlarged cross-sectional view of the tip portion of the display device 14 taken along line IV-IV in FIG.

  A front cover insertion portion 22 is formed on the front end side of the front cover 20. The front cover insertion portion 22 is a portion that enters the inside of the back cover 30 when the front cover 20 is assembled to the back cover 30. That is, when the mating surface 20 a at the front end portion of the front cover 20 is butted against the mating surface 30 a of the back cover 30, the front cover insertion portion 22 is inserted below the mating surface 30 a of the back cover 30.

  Accordingly, when the front cover 20 is assembled to the back cover 30, even if there is a gap between the mating surface 20 a of the front end portion of the front cover 20 and the mating surface 30 a of the back cover 30, the front cover 20 is under the gap. A cover insertion portion 22 extends. As a result, light leaking from the LCD panel 18 inside the LCD housing 16 is prevented from directly entering the gap between the mating surface 20a of the front end portion of the front cover 20 and the mating surface 30a of the back cover 30. The

  In addition, the front cover 20 and the back cover 30 are designed so that the upper surface of the front cover insertion portion 22 contacts the inner surface of the back cover 30 when the front cover 20 and the back cover 30 are assembled. For this reason, light leaking from the LCD panel 18 inside the LCD housing 16 is suppressed from passing between the upper surface of the front cover insertion portion 22 and the inner surface of the back cover 30. Thereby, the light leaked from the LCD panel 18 inside the LCD housing 16 is suppressed from traveling to the gap between the mating surface 20a of the front end portion of the front cover 20 and the mating surface 30a of the back cover 30.

  Further, even if a gap is generated between the upper surface of the front cover insertion portion 22 of the front cover 20 and the inner surface of the back cover 30, the gap is not directed to the side surface of the LCD panel 18, and thus leaked from the LCD panel 18. Light does not enter this gap directly.

  For the above reason, the light leaking from the LCD panel 18 inside the LCD housing 16 is caused by the gap between the mating surface 20a of the front end portion of the front cover 20 and the mating surface 30a of the back cover 30 to be contained in the LCD housing. There is no leakage outside the 16.

  By adopting a structure in which the upper surface of the front cover insertion portion 22 is inserted into and contacts the lower side of the inner surface of the back cover 30, the front cover 20 and the back cover 30 are fitted in this portion. Further, a plurality of ribs 34 are formed on the inner surface of the back cover 30, and the ribs 34 are fitted into the slits 24 formed in the front cover insertion portion 22. By fitting the rib 34 and the slit 24, the fitting between the front cover 20 and the back cover 30 is reinforced. With the above configuration, the front cover 20 and the back cover 30 can be firmly fixed on the front end side (the side opposite to the side supported by the main body 12) of the LCD housing 16 and screwed at this portion. No need to fix with etc.

  Therefore, in the present embodiment, the screws for fixing the front cover 20 and the back cover 30 to each other are not the four corners of the LCD housing 16 but only two places on one side close to the main body 12. Thereby, the number of parts of the LCD housing 16 is reduced, and the number of assembly steps (number of screw tightening steps) is also reduced.

  FIG. 5 is a plan view showing the slit 24 of the front cover 20 and the rib 34 of the back cover. 6 is a cross-sectional view taken along line VI-VI in FIG. The ribs 34 have the same width as a whole, and the slits 24 also have the same width as a whole. 5 and 6, the gap between the rib 34 and the slit 24 is drawn large for convenience of illustration, but this gap is preferably extremely small, and the rib 34 fits into the slit 24 and is always in contact. It is preferable to be in such a state. When the outer surface of the rib 34 and the inner surface of the slit 24 are in contact, the fitting connection between the front cover insertion portion 22 and the back cover 30 can be reinforced.

  By making the planar shape of the slit 24 and the rib 34 tapered as shown in FIG. 7, the rib 34 and the slit 24 can be fitted more strongly. Further, the ribs 34 and the slits 24 can be more strongly fitted by making the cross-sectional shapes of the slits 24 and the ribs 34 reversely tapered as shown in FIG.

  As described above, since the front cover 20 and the back cover 30 are fitted and connected at the front end portion of the LCD housing 16, it is not necessary to screw the front end portion. Therefore, in the present embodiment, the front cover 20 and the back cover 30 can be screwed only at two places on the operation unit 12 side.

  FIG. 9 is a cross-sectional view of the screwing portion, and corresponds to a cross-sectional view along the line IX-IX in FIG. The screw 40 for fixing the front cover 20 and the back cover 30 to each other is formed upright from the inner surface of the back cover 30 in a state where the screw head is accommodated in the recess 26 formed on the surface side of the front cover 20. The boss 36 is screwed. In this embodiment, when the front cover 20 and the back cover are screwed together with the screws 40, the screws 40 are tightened with the LCD fixing sheet metal interposed therebetween. Thereby, the LCD panel 18 can also be fixed in the LCD casing 16 by the screws 40 for fixing the front cover 20 and the back cover 30. After tightening the screw 40, the opening of the recess 26 is closed with, for example, a seal so that it cannot be seen from the outside.

  Note that an antenna for wireless communication is often incorporated in a notebook computer, and in this embodiment, the wireless antenna 50 is housed inside the folded back end portion 32 of the back cover 30. Since the LCD panel 18 does not extend at the distal end portion 32, the wireless antenna 50 is provided using this empty space. By forming the back cover 30 including the front end portion 32 with resin, the wireless antenna 50 can be provided in a portion covered with resin.

  Further, by providing the folded back tip 32 to the back cover 30, there is no mating surface at the tip of the LCD housing 16, and the tip can have various shapes. Thereby, the freedom degree of the design of a notebook personal computer spreads, and the notebook personal computer which has a favorable external appearance can be designed.

  Next, the attachment structure on the side surface side of the front cover 20 and the back cover 30 will be described. FIG. 10 is a plan view showing the inside of the front cover 20. FIG. 11 is a plan view showing the inside of the back cover 30.

  As shown in FIG. 10, engaging portions 28 are formed at a plurality of locations along the left and right side walls 20 b and 20 c of the front cover 20 (two locations in FIG. 10). Further, as shown in FIG. 11, engagement claws 38 are formed at a plurality of locations along the side walls 30 b and 30 c of the back cover 30. When the front cover 20 and the back cover 30 are assembled, the engaging claws 38 of the back cover 30 engage with the engaging portions of the front cover 20.

  FIG. 12 is a cross-sectional view showing a state in which the engaging claw 38 is engaged with the engaging portion 28. FIG. 13 is a perspective view showing a state before the engaging claw 38 is engaged with the engaging portion 28. When the back cover 30 is assembled to the front cover 20, the front cover 23 and the back cover 30 are moved so that the insertion portion 22 of the front cover 22 is inserted under the inner surface of the back cover 30. At this time, as shown in FIG. 13, the engaging claw 38 of the back cover 30 is inserted under the engaging portion 28 of the front cover 20, so that the engaging claw 38 engages with the engaging portion 28, and the front cover 20 and the back cover 30 are fixed to each other.

  The engaging claw 38 may be fitted from above the engaging portion 28. In this case, as shown in FIG. 14, it is preferable to form the inclined surface 38 a on the engaging claw 38 and also form the inclined surface 28 a on the engaging portion 28. By pressing the inclined surface 38a of the engaging claw 38 against the inclined surface 28a of the engaging portion 28, the portion where the engaging claw 38 is formed and the portion where the engaging portion 28 is formed are slightly deformed. 38 can easily enter under the engaging portion 28.

  In the embodiment described above, the front end portion 32 of the back cover 30 is folded, but conversely, the front cover 20 may be folded back. FIG. 15 is a perspective view when assembling the front cover 20A and the back cover 30A with the tip 22A folded back. A front cover 20A and a back cover 30A shown in FIG. 15 are obtained by replacing the shapes of the front cover 20 and the back cover 30 shown in FIG. That is, the front end 20A of the front cover 20A has a folded shape, and the back cover 30A has a back cover insertion portion 32A. The back cover insertion portion 32A is inserted under the mating surface 20Aa of the front cover 20A and abutted against the mating surface 20Aa of the front cover 20A and the mating surface 30Aa of the back cover 30A, so that the front cover 20A and the back cover 30A are fitted. Are connected. In the example shown in FIG. 15, the back cover 30A is attached after the LCD panel 18 is attached to the front cover 20A.

  FIG. 16 is a cross-sectional view of the front end portion 22A of the front cover 20A. Since the back cover insertion portion 32A extends from the tip of the back cover 30A, the wireless antenna 50 is attached to the inner surface of the back cover 30A via the antenna base 52. This is because the wireless antenna 50 is arranged so as to be separated from the back cover insertion portion 32A to some extent so as not to interfere with the insertion of the back cover insertion portion 32A into the front cover 20A.

  The other structure of the display device formed by the front bar 20A and the back cover 30A is the same as the structure of the LCD housing 16 shown in FIG.

As described above, the present specification discloses the following matters.
(Appendix 1)
A display device that houses a display panel therein,
A first casing having an opening for exposing a display surface of the display panel, to which the display panel is attached;
A second housing attached to the first housing so as to cover the back surface of the display panel;
A folded portion is formed at one tip of the first casing and the second casing,
The other tip part of the first casing and the second casing has a plug part that is inserted into the one tip part of the first casing and the second casing.
(Appendix 2)
A display device according to attachment 1, wherein
The folded portion has a rib;
The insertion part has a slit,
The display device in which the rib is fitted into the slit when the first casing and the second casing are assembled.
(Appendix 3)
A display device according to attachment 2, wherein
A display device in which the planar shape of the rib and the slit is a tapered shape.
(Appendix 4)
The display device according to appendix 2 or 3,
The cross-sectional shape of the said rib and the said slit is a display apparatus which is a taper shape.
(Appendix 5)
The display device according to any one of appendices 1 to 4,
The distal end side of the display device is fixed by fitting the insertion portion and the distal end portion,
The display device in which the first housing and the second housing are fixed with screws on the opposite side of the distal end side.
(Appendix 6)
The display device according to any one of appendices 1 to 5,
The display device in which the one end portion of the first casing and the second casing is formed of resin, and an antenna is disposed inside the end portion.
(Appendix 7)
A main body provided with an operation unit;
An electronic apparatus comprising the display device according to any one of appendices 1 to 6.
(Appendix 8)
An electronic device according to appendix 7,
The electronic device is a notebook personal computer.

DESCRIPTION OF SYMBOLS 10 Notebook personal computer 12 Main-body part 14 Display apparatus 16 LCD housing | casing 18 LCD panel 20, 20A Front cover 20a, 20Aa Matching surface 22 Front cover insertion part 22A Tip part 24 Slit 26 Recess 28 Engagement part 28a Inclined surface 30, 30A Back Cover 30a, 30Aa Matching surface 32 Tip portion 32A Back cover insertion portion 34 Rib 36 Boss 38 Engagement claw 38a Inclined surface 40 Screw 50 Wireless antenna 52 Antenna base 52

Claims (5)

A display device that houses a display panel therein,
A first casing having an opening for exposing a display surface of the display panel, to which the display panel is attached;
A second housing attached to the first housing so as to cover the back surface of the display panel;
A folded portion is formed at one tip of the first casing and the second casing,
The other tip of the first casing and the second casing has an insertion portion that is inserted into the inner surface side of the folded portion,
It said first housing and one of said second housing, the engagement pawls are formed along the both side walls, the other of the first housing and the second housing Are formed with engaging portions that engage with the engaging claws along the side walls on both sides ,
The engagement claw is Ru engaged with the engagement portion at the operation to move the first housing and the second housing such that the insertion portion is inserted into the inner surface of the front Symbol folded portion And
The folded portion has a rib;
The insertion part has a slit,
When the the first of the a housing the second housing are assembled, the ribs that match fitted in the slit display device. The display device according to claim 1 ,
A display device in which the planar shape of the rib and the slit is a tapered shape. A display device according to claim 1 or 2, wherein,
On the front end side of the display device, the first housing and the second housing are fixed by fitting the insertion portion and the folded portion,
The display device in which the first housing and the second housing are fixed with screws on the opposite side of the distal end side. A display device according to any one of claims 1 to 3 ,
The display device in which the one tip portion of the first housing and the second housing is made of resin, and an antenna is disposed inside the tip portion outside the display panel . A main body provided with an operation unit;
An electronic device and a display device as claimed in any one of claims 1 to 4.

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