JP5353128B2 - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device that reduces fitting defects by facilitating fitting of a substrate attached to a panel in the crossing direction. <P>SOLUTION: The substrate 3 is attached in the orthogonal direction to the panel 2. An LED (light emitting diode) 4 is mounted on the substrate 3. A light guide unit 5 includes an incident part 51A provided opposite to the LED and an emitting part 51B to be visually confirmed through a panel hole 22 provided in the panel 2, wherein the light of the LED 4 entering from the incident part 51A is guided and emitted from the emitting part 51B. The light guide unit 5 is provided with a flange part 52C fixed to the panel 2 and protruded toward the substrate 3 to fix the position of the substrate 3 abutted with the end of the substrate 3, and a pin 52D protruded toward the substrate 3 to regulate the position of the substrate 3 abutted with the inner peripheral surface of a fitting hole 31 provided in the substrate 3. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a display device, and more particularly to a display device in which a substrate on which a light emitting element is mounted is attached in a direction crossing a panel.

  As the display device described above, for example, a display device as shown in FIG. 9 is known. As shown in the figure, the display device 1 includes a panel 2, a substrate 3, and a light emitting unit 7. The panel 2 is provided, for example, on one surface of a housing constituting an electronic device. The panel 2 is provided with a panel hole 22 which is an opening, and the top of an LED 4 as a light emitting element to be described later is inserted into the panel hole 22. Thereby, the LED 4 is exposed from the panel hole 22 of the panel 2. The substrate 3 is attached in a direction crossing the panel 2 and is mounted with a light emitting unit 7. The light emitting unit 7 includes an LED 4 and a spacer 71. The LED 4 is provided by bending its lead 72 into an L shape so that the top portion can be inserted into the panel hole 22 of the panel 2. The LED 4 is held on the substrate 3 with the lead 72 bent into an L shape by inserting the lead 72 into a lead insertion groove 73 provided in the spacer 71.

  However, in the conventional display device 1 shown in FIG. 9, as shown in FIG. 10, the position of the LED 4 and the panel hole 22 may be displaced due to the influence of the warp of the substrate 3 or the like. In particular, when many LEDs 4 are mounted on one substrate 3, there is a problem that it is difficult to attach the substrate 3 if such a displacement occurs. Moreover, if the above-mentioned positional deviation occurs when the LED 4 is inserted into the panel hole 22, the panel hole 22 and the LED 4 are rubbed, and the LED 4 may be damaged and become a defective product. Further, the LED 4 used in the conventional display device 1 shown in FIG. 9 has a problem in that it cannot be automatically mounted on the substrate 3 using the self-inserting machine because the lead 72 is bent into an L shape.

  Further, as the display device 1, there has been proposed one in which the spacer 71 is eliminated and the light emitting unit 7 is configured by a chip-like LED 4 and a light guide lens (not shown). The light guide lens is mounted on the substrate 3 so as to face the chip-like LED 4 and has a shape such that the top portion can be inserted into the panel hole 22. According to the above configuration, the LED 4 can be automatically mounted on the substrate 3. However, in this case as well, since the light guide lens is mounted on the substrate 3, as in FIG. 9, the position of the light guide lens and the panel hole 22 is displaced, making it difficult to attach the substrate 3. There was a problem that the light guide lens was damaged due to rubbing of 22 and the light guide lens, resulting in a defective product. Furthermore, as shown in FIG. 11, it is also conceivable to fix the light guide lens 74 by sandwiching it between the substrate 3 and the panel 2. However, in this case, it is necessary to attach the substrate 3 in parallel with the panel 2, and there is a problem that it cannot be applied to the display device 1 in which the substrate 3 is attached in a direction intersecting the panel 2 as shown in FIG. It was.

  Therefore, the present invention pays attention to the above-described problems, and an object of the present invention is to provide a display device that can easily mount a substrate that is mounted in a direction crossing the panel and reduce defective mounting products.

The invention according to claim 1, which has been made to solve the above problems, includes a panel, a substrate attached via a substrate fixing portion in a direction intersecting the panel, and a light emitting device mounted on the substrate. And an incident part provided so as to face the light emitting element, and an emitting part exposed from an opening provided in the panel, and the light of the light emitting element incident from the incident part is provided. A light guide unit that guides and emits the light from the light emitting unit, wherein the light guide unit is in contact with the fixed part fixed to the panel and the substrate to regulate the position of the substrate and, and, and the substrate and the projections contact with the light guide unit is provided to protrude toward the substrate side so as to restrict movement in a direction away from the panel, it is provided, the fixing unit And the protrusion It is comprised from the flange part provided in parallel with the said panel from the edge part by the side of the said panel of a light guide unit, And the said flange part is fixed to the said panel, and the edge by the side of the said board | substrate of the said board | substrate The display device is provided so as to be in contact with a portion to regulate the position of the substrate .

According to a second aspect of the present invention, the projecting portion is constituted by a pin provided to project toward the substrate side, and the substrate is provided with a fitting hole into which the pin is inserted. The display device according to claim 1 is provided.

The invention according to claim 3 further includes a plurality of input or output terminals provided in a horizontal direction on the panel, and an opening provided in the panel is provided above or below the input or output terminal. The display device according to claim 1 , wherein the display device is provided.

According to a fourth aspect of the present invention, the substrate fixing portion includes a first fixing plate fixed to the panel provided in parallel with the panel, and a first fixing plate fixed in parallel to the substrate. The second fixing plate of the substrate fixing part is longer in the direction intersecting with the panel than the light guide unit and is flush with the incident part of the light guide unit. It exists in the display apparatus of any one of Claims 1-3 provided so that it may be arrange | positioned above.

The invention according to claim 5 is characterized in that the pin is provided at such a height that the light emitting element does not interfere with the light guide unit when a substrate is mounted on the pin and the substrate fixing portion. It exists in the display apparatus of Claim 2 .

  As described above, according to the first aspect of the invention, by providing the light guide unit with the fixing portion, the light guide unit is fixed to the panel in advance, and then the substrate is attached to the panel from the light emitting portion side of the light guide unit. Can be mounted in the crossing direction. Thereby, positioning with the output part provided in the light guide unit and the opening of a panel can be performed easily. Further, by providing the light guide unit with the protrusion, the light guide unit and the substrate can be easily positioned. For this reason, the attachment of the board | substrate attached to the direction which cross | intersects with respect to a panel can be made easy, and attachment failure goods can be decreased. In particular, a great effect can be obtained when a plurality of light emitting elements are mounted on a substrate. Moreover, since the protrusion provided in the light guide unit is in contact with the substrate, the light guide unit can be prevented from falling off by the substrate. Furthermore, since the incident portion of the light guide unit is provided so as to face the light emitting element mounted on the substrate, if the substrate is attached from the incident portion side of the light guide unit, the light guide unit is attached when the substrate is attached. The substrate can be attached so that the incident portion of the light guide unit and the light emitting element face each other while viewing the incident portion. For this reason, the visibility of the light guide unit and the mounting workability of the substrate are improved.

According to the first aspect of the present invention, since the flange portion can have both functions of the fixed portion and the protruding portion, the shape of the light guide unit can be simplified.

According to invention of Claim 2 , the light guide unit which fixed the board | substrate to the panel before fixing a board | substrate to a panel by engaging the fitting hole provided in the board | substrate to the pin provided in the light guide unit. Therefore, the mounting workability of the substrate can be further improved. Moreover, the pin and the inner peripheral surface of the fitting hole come into contact with each other, and the light guide unit can be prevented from falling off.

According to the invention described in claim 3 , since the substrate can be attached from above, the workability of the attachment can be improved.

According to invention of Claim 4, the length of the direction which cross | intersects a 2nd fixing plate of a board | substrate fixing | fixed part with a panel is longer than a light guide unit, and is arrange | positioned on the same plane as the incident part of a light guide unit. By providing in this way, the weight of the substrate is not applied to the light guide unit, and the light guide unit can be prevented from falling off due to the weight of the substrate.

According to the fifth aspect of the present invention, the light emitting element on the substrate and the light guide lens do not interfere with each other when the substrate is attached by the pin, and the light emitting element can be prevented from falling off.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 3, an electronic device 1 incorporating the display device of the present invention includes a panel 2, a substrate 3, an LED 4 as a light emitting element, a light guide unit 5, and an angle as a substrate fixing portion. 6 are provided. As shown in FIG. 1, the panel 2 is provided on the front surface of the casing that constitutes the electronic device 1. As shown in FIGS. 1 and 2, the panel 2 is provided with an input terminal 21 and a panel hole 22 as an opening. A plurality of the input terminals 21 are provided along the horizontal direction Y <b> 1 of the panel 2. As shown in FIG. 3, the panel hole 22 is a hole into which an emission part 51 </ b> B of the light guide unit 5 described later is inserted, and is provided above the input terminal 21. As shown in FIG. 1, three panel holes 22 are provided side by side in the horizontal direction Y <b> 1 with respect to one input terminal 21 in the present embodiment. As shown in FIG. 3, the substrate 3 is attached in a direction orthogonal to (intersects) the panel 2. The LED 4 is provided for an indicator that indicates the state of the input terminal 21, and is mounted on the lower surface of the substrate 3.

  The light guide unit 5 includes a light guide part 51 and a cover part 52, as shown in FIGS. The light guide 51 is made of a light guide member such as acrylic. The light guide 51 includes an incident part 51A, an emission part 51B, and a reflection part 51C. As shown in FIG. 3, the incident portion 51 </ b> A is provided on the side surface on the substrate 3 side of the light guide portion 51 and is provided so as to face the LEDs 4 mounted on the substrate 3. The emission part 51 </ b> B is formed in a convex shape that protrudes toward the panel 2, and is provided in a shape that can be inserted into the panel hole 22. As shown in FIGS. 4A to 4C, the light emitting portions 51 </ b> B are provided so as to protrude three along the horizontal direction Y <b> 1. As shown in FIG. 4E, the reflecting portion 51C is provided at a position facing the incident portion 51A. The reflecting portion 51C is formed in a tapered shape such that the light L incident from the incident portion 51A is separated from the incident portion 51A as it approaches the panel 2 so as to reflect the light L to the emission portion 51B side.

  The cover part 52 is comprised from light shielding members, such as resin, and is provided so that the light guide part 51 may be covered and light leakage may be prevented. As shown in FIG. 4, the cover portion 52 is provided with an entrance opening 52A, an exit opening 52B, a flange portion 52C as a fixing portion and a protrusion, and a pin 52D as a protrusion. Three incident openings 52 </ b> A are provided in the horizontal direction Y <b> 1 so as to face the incident part 51 </ b> A of the light guide part 51, and expose the incident part 51 </ b> A of the light guide part 51. Three exit openings 52 </ b> B are provided in the horizontal direction Y <b> 1 so as to face the exit part 51 </ b> B of the light guide part 51, and the exit part 51 </ b> B of the light guide part 51 is exposed. As shown in FIGS. 3 and 4, the flange portion 52 </ b> C is provided so as to protrude from the end portion on the panel 2 side of the cover portion 52 toward the substrate 3 side and the side away from the substrate 3. As shown in FIG. 3, the pins 52 </ b> D are provided so as to protrude toward the board 3 so as to be fitted into the fitting holes 31 provided in the board 3. A pair of pins 52 </ b> D are provided at both ends in the horizontal direction Y <b> 1 of the cover portion 52. As shown in FIG. 4D, the pair of pins 52D are provided so that the positions in the front-rear direction Y2 are different.

  The angle 6 is a member for attaching the substrate 3 in a direction orthogonal to the panel 2. As shown in FIGS. 3 and 5, the angle 6 includes a first fixing plate 61 and a second fixing plate 62. The first fixing plate 61 is provided in parallel with the panel 2 and is fixed above the panel hole 22 of the panel 2. The first fixed plate 61 is formed in a long shape, and is provided such that its longitudinal direction is along the horizontal direction Y1. The two second fixing plates 62 are provided so as to protrude from the both ends in the longitudinal direction of the first fixing plate 61 and the lower end of the intermediate portion toward the rear side. The second fixing plate 62 is provided in parallel with the substrate 3, and the substrate 3 is mounted and fixed thereon. The second fixing plate 62 is provided with a screw hole 62A for fixing the substrate 3. As shown in FIG. 3, the second fixed plate 62 has a length in the front-rear direction Y <b> 2 (= direction orthogonal to the panel 2) longer than that of the light guide unit 5. The second fixing plate 62 is provided so as to be arranged on the same plane as the substrate contact surface of the light guide unit 5.

  Next, a procedure for assembling the display device described above will be described below with reference to FIGS. As shown in FIG. 5, an angle 6 is attached to the panel 2. Next, as shown in FIG. 6, the light guide unit 5 is fixed to the panel 2 by sticking the flange portion 52 </ b> C of the light guide unit 5 to the back side of the panel 2 using a double-sided tape or the like. Next, as shown in FIG. 7, the panel 2 is mounted on the second fixed plate 62 provided at the angle 6 from the upper side of the light guide unit 5. At this time, as shown in FIGS. 3 and 7, the end of the substrate 3 on the panel 2 side is in contact with the flange portion 52 </ b> C, and the pin 52 </ b> D of the light guide unit 5 is inserted into the fitting hole 31 provided in the substrate 3. So that Thereby, the board | substrate 3 and the light guide unit 5 are positioned, and 51 A of incident parts and LED4 are arrange | positioned facing each other. Next, the substrate 3 is fixed to the second fixing plate 62 with the screws N, and the assembly is completed.

  According to the electronic device 1 described above, by providing the light guide unit 5 with the flange portion 52C as a fixing portion, the light guide unit 5 is fixed to the panel 2 in advance, and then the substrate 3 from the incident portion 51A side of the light guide unit 5 is secured. Can be attached in a direction perpendicular to the panel 2. Thereby, the positioning of the emission part 51 </ b> B of the light guide unit 5 and the panel hole 22 of the panel 2 can be easily performed, and the emission part 51 </ b> B of the light guide unit 5 can be easily inserted into the panel hole 22 of the panel 2. Further, by providing the light guide unit 5 with a flange portion 52C as a protrusion, the end portion on the panel 2 side of the substrate 3 abuts on the flange portion 52C provided on the light guide unit 5 as shown in FIG. Since the position of the substrate 3 is regulated, the positioning of the light guide unit 5 and the substrate 3 in the front-rear direction Y2 can be facilitated. Further, by providing the light guide unit 5 with a pin 52D as a protrusion and inserting the pin 52D into the fitting hole 31 provided in the substrate 3, as shown in FIG. Since the peripheral surface abuts on the pin 52D and the position of the substrate 3 is regulated, the light guide unit 5 and the substrate 3 can be easily positioned in both the horizontal direction Y1 and the front-rear direction Y2. For this reason, the attachment of the board 3 attached in the direction orthogonal to the panel 2 can be facilitated, and defective attachments can be reduced. In particular, a large effect can be obtained when a plurality of LEDs 4 are mounted on the substrate 3. As is clear from the description of the flange portion 52C and the pin 52D described above, the contact surface of the substrate 3 that contacts the light guide unit 5 and regulates the position of the substrate 3 is a surface different from the mounting surface of the LED 4. Is provided.

  Moreover, since the flange part 52C provided in the light guide unit 5 and the end part on the panel 2 side of the substrate 3 are in contact as described above, the flange part 52C of the light guide unit 5 is connected between the panel 2 and the substrate 3. It can be held between them. Thereby, dropping of the light guide unit 5 can be prevented. Moreover, since the inner peripheral surface of the fitting hole 31 is in contact with the pin 52D as described above, the panel 2 side is held between the panel 2 and the substrate 3 with respect to the pin 52D of the light guide unit 5 and held. be able to. Thereby, dropping of the light guide unit 5 can be prevented.

  Further, as described above, since the incident portion 51A of the light guide unit 5 is provided so as to face the LED 4 mounted on the substrate 3, the mounting operation of the substrate 3 from the incident portion 51A side of the light guide unit 5 is performed. If it carries out, the board | substrate 3 can be attached so that 51 A of incident parts of the light guide unit 5 and LED4 may oppose, visually observing the incident part 51A of the light guide unit 5 at the time of board | substrate 3 attachment. For this reason, the visibility of the light guide unit 5 and the mounting workability of the substrate 3 are improved.

  Further, according to the electronic device 1 described above, the flange portion 52C is provided by providing the light guide unit 5 with the flange portion 52C that is fixed to the panel 2 and that contacts the end portion of the substrate 3 to regulate the position of the substrate 3. It is possible to provide both functions of the fixing portion and the protruding portion (positioning and prevention of dropping) in the claims, so that it is not necessary to separately provide the fixing portion and the protruding portion in the light guide unit 5, and the light guiding unit The shape of 5 can be simplified.

  Further, the positioning by contact between the end portion of the substrate 3 and the flange portion 52C of the light guide unit 5 described above can only perform positioning in the front-rear direction Y2. Therefore, by fitting the fitting holes 31 provided in the substrate 3 to the pins 52D provided in the light guide unit 5 as described above, positioning in the horizontal direction Y1 as well as the front-rear direction Y2 can be performed. For this reason, since the board | substrate 3 can be positioned (temporarily fixed) to the light guide unit 5 fixed to the panel 2 before fixing the board | substrate 3 to the panel 2, the attachment workability | operativity of the board | substrate 3 can be made further favorable.

  Further, according to the electronic apparatus 1 described above, the panel hole 22 provided in the panel 2 is provided above the input terminal 21. Thereby, since the board | substrate 3 can be attached from upper direction, the improvement of the workability | operativity of attachment can be aimed at.

  Further, according to the electronic apparatus 1 described above, the length of the second fixing plate 62 of the angle 6 is longer than the light guide unit 5 in the direction orthogonal to the panel 2 (front-rear direction) and the light guide unit 5 is incident. By providing the light guide unit 5 so as to be disposed on the same plane as the portion 51A, the light guide unit 5 is not subjected to its own weight, and the light guide unit 5 can be prevented from falling off due to the substrate 3's own weight.

  As shown in FIG. 8, the height of the pin 52D is determined when the substrate 3 is mounted on the pin 52D and the end of the second fixing plate 62 of the angle 6 on the side away from the panel 2. The LED 4 is provided at such a height that it does not interfere with the light guide unit 5 and the angle 6. More specifically, as shown by a dotted line in FIG. 8, the end of the substrate 3 on the panel 2 side is mounted on the pin 52D, and the end of the second fixing plate 62 on the side away from the panel 2 is mounted. When mounted on the LED 4, the LED 4 is closest to the light guide unit 5 and the angle 6. Therefore, at this time, the pin 52 </ b> D may be provided at such a height that the LED 4 does not interfere with the light guide unit 5 and the angle 6.

  In the above-described embodiment, the flange portion 52C and the end portion of the substrate 3 are brought into contact with each other, and the flange portion 52C is also functioned as a protruding portion that performs positioning and prevention of dropping in the claims. Is not limited to this. For example, it is conceivable that the flange portion 52C and the end portion of the substrate 3 are provided so as not to contact each other, and the flange portion 52C functions only as a fixing portion in claims.

  In the above-described embodiment, the light guide unit 5 is provided with the flange portion 52C and fixed to the panel 2. However, the present invention is not limited to this. For example, a portion of the light guide unit 5 that is in contact with the back surface of the panel 2 at the periphery of the light emitting portion 51B may be fixed to the panel 2 without providing the flange portion 52C.

  Further, the above-described embodiments are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention.

It is a perspective view of the electronic device incorporating the display device of the present invention. It is a front view of the electronic device shown in FIG. It is the II sectional view taken on the line of FIG. (A) is a top view of the light guide unit, (B) is a perspective view of the light guide unit, (C) is a front view of the light guide unit, and (D) is a side view of the light guide unit. (E) is a sectional view taken along line II-II in (C). It is the back perspective view of the panel before light guide unit attachment, and its partial enlarged view. It is the back perspective view of the panel after light guide unit attachment, and its partial enlarged view. It is the back perspective view of the panel after board attachment, and the elements on larger scale. It is sectional drawing for demonstrating the height of a pin. It is a figure which shows an example of the conventional display apparatus. It is a figure for demonstrating the problem of the display apparatus shown in FIG. It is a figure which shows an example of the conventional display apparatus.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Electronic device (display apparatus), 2 ... Panel, 3 ... Board | substrate, 4 ... LED (light emitting element), 5 ... Light guide unit, 6 ... Angle (board | substrate fixing | fixed part), 21 ... Input terminal, 22 ... Panel hole ( Opening), 31 ... fitting hole, 51A ... incident part, 51B ... emitting part, 52C ... flange part, 52D ... pin, 61 ... first fixing plate, 62 ... second fixing plate

Claims (5)

A panel, a substrate attached via a substrate fixing part in a direction intersecting the panel, a light emitting element mounted on the substrate, an incident part provided to face the light emitting element, and And a light guide unit that is provided with an emission part that is exposed from an opening provided in the panel, and that guides the light of the light emitting element incident from the incident part and emits the light from the emission part. A device,
The light guide unit is in contact with the fixed portion fixed to the panel and the substrate to regulate the position of the substrate, and is in contact with the substrate to move the light guide unit away from the panel. And a protrusion provided to protrude toward the substrate side so as to regulate the movement of
The fixed portion and the protrusion are configured by a flange portion provided so as to protrude in parallel to the panel from an end portion on the panel side of the light guide unit, and
The display device according to claim 1, wherein the flange portion is fixed to the panel and is provided so as to contact an end portion of the substrate on the panel side so as to regulate a position of the substrate . The protrusion is composed of a pin that protrudes toward the substrate, and
The display device according to claim 1 , wherein the board is provided with a fitting hole into which the pin is inserted. A plurality of input or output terminals provided side by side in the horizontal direction on the panel; and
Opening provided in the panel, the display device according to claim 1 or 2, characterized in that provided on the upper side or lower side of the input or output terminal. The substrate fixing portion is composed of a first fixing plate fixed to the panel provided in parallel with the panel, and a second fixing plate to which the substrate provided in parallel with the substrate is fixed,
And
The second fixing plate of the substrate fixing part is provided so that the length in the direction intersecting with the panel is longer than the light guide unit and is disposed on the same plane as the incident part of the light guide unit. display device according to any one of claims 1 to 3, characterized in that there. According to claim 2, characterized in that said pin is provided wherein the light emitting element height so as not to interfere with the light unit when the substrate is mounted on the board fixing portion on said pin Display device.

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