JP2006011206A - Liquid crystal display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid crystal display device is made lightweight and can protect a liquid crystal main body against not only an external force in a flank direction, but also an external force in a plane direction. <P>SOLUTION: This liquid crystal display device is made lightweight as compared with a case wherein protection is enhanced with resin, and can protect the liquid crystal body against strong shocks since a holding member 30 housing the liquid crystal main body 20 in a nearly plate shape is provided with a metal member 31 along the liquid crystal main body. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a liquid crystal display device that can be used in, for example, a portable terminal.

In the conventional liquid crystal display device 100, as shown in FIG. 5, a frame 103 having an H-shaped cross section is interposed between the upper cover 101 and the lower cover 102 to suppress deformation of the casing due to impact force. I have to. Inside the frame 103, a touch panel 105 and a liquid crystal display panel 106 are accommodated via a rectangular frame-shaped buffer 104. The touch panel 105 and the liquid crystal display panel 106 are attached to a recess provided on the inner surface of the buffer body 104, and are protected against an impact force from the outside. Similarly, the circuit board 107 is also attached to the frame 103 via the buffer body 104 so as to protect against an external impact force (see, for example, Patent Document 1).
Japanese Patent Laying-Open No. 2003-51681 (FIG. 1)

  However, in the liquid crystal display device 100 as described above, the liquid crystal display panel 106 and the like are protected by the buffer 104, but the protection is limited when the impact is strong. In general, the shock absorber 104 effectively protects and protects against external force from the side surface direction, but it is weak against external force in the direction orthogonal to the surface of the liquid crystal display panel 106 and the like, and can be broken even by a small external force. was there.

  The present invention has been made to solve the conventional problems, and provides a liquid crystal display device capable of reducing the thickness and protecting the liquid crystal main body against external force in the lateral direction as well as in the lateral direction. The purpose is to do.

  The liquid crystal display device of the present invention is a liquid crystal display device having a substantially plate-like liquid crystal main body and a holding member that accommodates the liquid crystal main body, wherein a metal member along the liquid crystal main body is at least part of the holding member. It has the structure provided.

  With this configuration, in the liquid crystal display device, since the metal member is provided along the liquid crystal body on the holding member that accommodates the substantially plate-shaped liquid crystal body, the thickness can be reduced compared to the case where the protection is strengthened by the resin. The liquid crystal body can be protected against a stronger impact.

  The liquid crystal display device according to the present invention has a configuration in which a plate-like metal member is disposed on the holding member substantially in parallel with the display surface of the liquid crystal body.

  With this configuration, since the holding member is provided with the metal member substantially parallel to the display surface of the liquid crystal main body, in the unlikely event that the holding member is deformed or damaged in the surface direction, from the impact that acts on the surface of the liquid crystal main body, The LCD body can be protected.

  Furthermore, the liquid crystal display device according to the present invention has a configuration in which the metal member is insert-molded on the holding member.

  With this configuration, since the metal member is insert-molded in the holding member, the number of parts can be reduced, and the number of assembly steps can be reduced.

  Furthermore, the liquid crystal display device according to the present invention has a configuration in which an insertion hole through which a flexible substrate drawn from the end face of the liquid crystal body can be inserted is provided in the wall portion of the holding member.

  With this configuration, since the insertion hole is provided in the wall portion of the holding member, the flexible substrate drawn out from the end surface of the liquid crystal main body can be easily pulled out from the holding member.

  In the present invention, a metal member is provided along the liquid crystal body on the holding member that accommodates the substantially plate-like liquid crystal body, so that the thickness is reduced and the impact is stronger than when the protection is strengthened by the resin. However, it is possible to provide a liquid crystal display device having an effect that the liquid crystal main body can be protected.

Hereinafter, a liquid crystal display device according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a sectional view showing a liquid crystal display device according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view.
As shown in FIGS. 1 and 2, the liquid crystal display device 10 includes a substantially plate-like liquid crystal main body 20 and a holding member 30 that accommodates the liquid crystal main body 20, and a metal member 31 along the liquid crystal main body 20. Is provided on at least a part of the holding member 30.

  As shown in FIG. 2, the liquid crystal body 20 is housed in a frame 21 and is fixed with, for example, double-sided tape to form a liquid crystal unit 22, and a transparent protective panel 23 is attached to the display surface 20 b of the liquid crystal body 20. Yes. Note that a plurality of positioning projections 21 a are provided on the lower surface of the frame 21.

  Further, the metal member 31 is made of, for example, stainless steel, and is effective as long as it is provided on at least a part of the holding member 30 as described above. However, the planar portion having the same size as or larger than the liquid crystal main body 20 is provided. It is desirable to have The metal member 31 is insert-molded in the holding member 30. The metal member 31 is provided with a plurality of recesses 31a for positioning the frame 21, and the frame 21 is positioned by fitting the projections 21a of the frame 21 into the recesses 31a. .

The holding member 30 has a wall portion 30b provided in a direction substantially orthogonal to the liquid crystal display surface 20b, and houses the liquid crystal unit 22, the metal member 31, and the like inside the wall portion 30b. A lower portion of the wall portion 30b on one side is notched to be provided with an insertion hole 32 so that the flexible substrate 20a drawn from the end surface of the liquid crystal main body 20 can be inserted. Note that the holding member 30 is usually attached to, for example, the lower casing 40 of a rectangular frame of a mobile terminal.
Therefore, when the liquid crystal main body 20 is housed in the holding member 30, the flexible substrate 20a can be pulled out from the insertion hole 32 and connected to a circuit board (not shown).

  According to the liquid crystal display device 10 described above, since the metal member 31 is provided along the liquid crystal body 20 on the holding member 30 that houses the substantially plate-like liquid crystal body 20, when the protection is strengthened by the resin. In comparison, it is possible to reduce the weight and protect the liquid crystal body 20 against a stronger impact. In particular, since the liquid crystal display surface 20b and the substantially parallel plate-like metal member 31 are provided so as to be in close contact with the liquid crystal unit 22, not only the external force in the side surface direction parallel to the display surface 20b of the liquid crystal main body 20 is provided. The liquid crystal main body 20 can be protected from an impact that acts on the liquid crystal main body 20 due to deformation or breakage in a direction orthogonal to the planar portion 30a of the holding member 30.

In the above description, the frame 21a and the metal member 31 are positioned by fitting the protrusions 21a and the recesses 31a. However, they may be positioned and fixed by a double-sided tape or the like.
In the above description, the configuration in which the liquid crystal main body 20 is fixed to the frame 21a has been described. In this case, the number of parts can be reduced.
In addition, although the case where the plate-shaped metal member 31 was used was demonstrated in the above description, as shown in other FIG. 3, the frame-shaped metal member 31A can also be used. In this case, a notch 33 for pulling out the flexible substrate 20 a is provided corresponding to the insertion hole 32 provided in the holding member 30.
Moreover, the shape of a rib etc. may be formed in the plane part 31b.
Moreover, although the case where stainless steel was used as the metal member 31 was demonstrated, in addition to this, light metals, such as an aluminum alloy, a titanium alloy, and a magnesium alloy, can also be used.

Next, a liquid crystal display device according to a second embodiment of the present invention will be described.
FIG. 4 is an exploded perspective view showing the liquid crystal display device 11 according to the second embodiment. In addition, the same code | symbol is attached | subjected to the site | part which is common in 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 4, in the liquid crystal display device 11, the plate-like metal member 31 is formed separately from the holding member 30, and is provided on the inner surface of the wall portion 30 b of the holding member 30 so that the end portion is inserted. It is slidable along the groove 34 opened in the hole 32. The metal member 31 is a plate-like member, and the size thereof is the same as the liquid crystal unit 22 or larger than the liquid crystal unit 22. In addition, here, the holding member 30 has an overall rectangular frame shape and is not provided with a bottom. The frame 21 is positioned and fixed by fitting positioning protrusions 21 a provided on the bottom surface with positioning recesses 31 a provided on the metal member 31.

By configuring in this way, the metal member 31 resists a strong impact, so that the liquid crystal body 20 can be protected. In particular, since the plate-like metal member 31 is provided along the bottom portion (plane portion 30a) of the holding member 30, not only the external force in the side surface direction parallel to the display surface 20b of the liquid crystal main body 20 but also the holding member 30 should be used. The liquid crystal main body 20 can be protected from an impact acting on the liquid crystal main body 20 due to deformation or breakage in a direction orthogonal to the flat portion 30a.
In addition, since the metal member 31 has a plate shape and can be attached to the holding member by sliding, the metal member 31 to which the liquid crystal unit 23 is fixed can be easily attached to the holding member 30. Can do. At this time, the flexible substrate 20 a provided in the liquid crystal body 20 is automatically pulled out from the insertion hole 32. For this reason, the attachment of the metal member 31 and the attachment of the flexible substrate 20a of the liquid crystal main body 20 are facilitated, and the assembly can be automated.

  As described above, the present invention provides a bottomed frame-shaped holding member that accommodates a substantially plate-like liquid crystal main body, by providing a metal member along the liquid crystal main body, thereby making the protection stronger with resin. It has the effect of being able to be thinned and protecting the liquid crystal body against stronger impacts, and is useful as a mobile terminal such as a mobile phone.

Sectional drawing which shows the liquid crystal display device concerning 1st Embodiment of this invention. 1 is an exploded perspective view of a liquid crystal display device according to a first embodiment of the present invention. The perspective view which shows another shape of a metal member The disassembled perspective view which shows the liquid crystal display device concerning 2nd Embodiment. Sectional view of a conventional liquid crystal display device

Explanation of symbols

10 Liquid crystal display device (first embodiment)
11 Liquid crystal display device (second embodiment)
DESCRIPTION OF SYMBOLS 20 Liquid crystal main body 20a Flexible board 20b Display surface 21 Frame 21a Positioning protrusion 22 Liquid crystal unit 23 Protection panel 30 Holding member 30b Wall part 31 Metal member 31a Positioning recessed part 31b Planar part 31A Metal member 32 Insertion hole 33 Notch 34 Groove 40 Lower casing 100 Liquid crystal display device 101 Upper cover 102 Lower cover 103 Frame 104 Buffer body 105 Touch panel 106 Liquid crystal display panel 107 Circuit board

Claims (5)

A liquid crystal display device having a substantially plate-like liquid crystal main body and a holding member for accommodating the liquid crystal main body,
A liquid crystal display device, wherein a metal member along the liquid crystal body is provided on at least a part of the holding member.   The liquid crystal display device according to claim 1, wherein a plate-like metal member is disposed on the holding member substantially parallel to the display surface of the liquid crystal body.   The liquid crystal display device according to claim 1, wherein the metal member is insert-molded in the holding member.   4. The liquid crystal display device according to claim 1, wherein an insertion hole through which a flexible substrate drawn from an end surface of the liquid crystal body can be inserted is provided in a wall portion of the holding member.   The liquid crystal display device according to claim 1, wherein the metal member is a light metal such as stainless steel, an aluminum alloy, a titanium alloy, or a magnesium alloy.

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