JP2004077330A - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device wherein an indicator panel is prevented from dropping off during building work by exercising ingenuity in a structure for fixing the indicator panel to a light guiding body and the indicator panel is prevented from being deformed in thermal contraction of the light guiding body. <P>SOLUTION: This display device is formed so that projection parts 35 extending to the outside of the peripheries of shaft parts 34 are provided on ends of pins 32 and 33, the lengths of the respective pins 32 and 33 between lower surfaces and front surfaces of the projection parts are formed to be larger than the length of the indicator panel 2, a first profile line 34a being the cross-section shape profile line of the shaft parts 34 is present inside a second profile line 22a being the profile line of holes 22, and a part of a third profile line 35a being the profile line of the projection parts 35 viewed along the axial direction of the pins 32 and 33 is present at all times outside the profile line 22a. The indicator panel 2 is securely locked on the light guiding body 3 by the projection parts 35 and the indicator panel 2 can be prevented from dropping off. Gaps formed between the the shaft parts 34 and the holes 22 make it possible to prevent the indicator panel 2 from being deformed in thermal contraction of the guiding body 3. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a display device for displaying various information, and is suitable for use in, for example, an automobile.
[0002]
[Prior art]
In a conventional display device, a support component for supporting the display panel, for example, a light guide is disposed on the back side of the display panel on which the scales and characters of the instrument or various operation indicators and warning light indicators are formed on the surface. The light from the light source is guided to the display panel by the light guide, and the display panel emits light. In order to reliably illuminate the scales, characters, various figures, and the like on the display panel and to ensure good visibility of the display panel, it is necessary to correctly maintain the positional relationship between the display panel and the light guide. Further, depending on the display device, a support component supporting the display panel may be a case of the display device. In this case, since the light guide is fixed to the case, in order to ensure good visibility of the display panel, the position between the display panel and the case is secured, as in the case of the above-described conventional display device. Relationships need to be maintained correctly.
[0003]
In the conventional display device, the light guide is provided with a plurality of pins projecting from the surface thereof, while the display panel is provided with through holes at positions corresponding to the pins of the light guide, and the pins and the through holes are fitted. By mounting the display panel on the light guide, the positional relationship between the two is maintained. The pin and the through hole are fitted with a gap in order to improve the workability of assembly. That is, a gap is formed between the pin and the through hole in a state where the display panel is assembled to the light guide. Usually, the mounting of the display panel to the light guide is performed by mounting the display panel from above the light guide that is placed substantially horizontally with the pins facing upward, that is, fitting the through holes of the display panel to the pins of the light guide. ing.
[0004]
[Problems to be solved by the invention]
By the way, in the middle of the assembling work of the display device, there is a case where the top and bottom of the light guide and the display panel which are integrated together are reversed. Then, the display panel may be detached from the light guide. Further, when the display device is a pointer instrument, there is a possibility that the pointer already attached to the front side of the display panel (the side opposite to the light guide) comes into contact with the detached display panel and may be damaged.
[0005]
As a countermeasure against the above-mentioned problem, there is a method in which the fitting between the pin and the through hole is press-fitted, that is, the pin is contoured in the axial direction of the pin to be larger than the contour of the through hole. In this case, it is possible to prevent the display panel from being detached from the light guide during the assembling work of the display device, but there is a problem that the force required to mount the display panel on the light guide increases. Furthermore, if the light guide undergoes thermal contraction after the completion of the display device, the display panel may be distorted.
[0006]
That is, generally, the light guide is formed of a transparent resin material. On the other hand, the display panel is also formed of a resin material, but its thickness is much smaller than the thickness of the light guide. The resin material has a property of reducing its volume when placed in a high temperature state, that is, a heat shrink property. When the heat shrinkage of the light guide is larger than the heat shrinkage of the display panel, that is, when the pins are pressed into the through holes and both are firmly fixed, when the light guide thermally shrinks, each of the light guides becomes The distance between pins becomes shorter. On the other hand, the amount of change in the distance between the through holes of the display panel is smaller than the amount of change in the distance between the pins of the light guide. Therefore, the display panel may be compressed by the light guide, and the display panel may be distorted and partially lifted from the light guide, thereby deteriorating the appearance of the display device.
[0007]
The present invention has been made in view of the above points, and its object is to devise a fixing structure between a display panel and a support component so as to prevent the display panel from dropping off during an assembling operation and to prevent heat of the support component. An object of the present invention is to provide a display device capable of preventing the display panel from being deformed during contraction.
[0008]
[Means for Solving the Problems]
The present invention employs the following technical means to achieve the above object.
[0009]
The display device according to claim 1 of the present invention includes a support component having a plurality of pins protruding from the surface, and a display panel having a through-hole at a position corresponding to the pins. An instrument in which a light guide and a display panel are stacked and arranged, wherein at least one of the plurality of pins has a protruding portion formed at an end thereof to extend outside the outer periphery of a shaft portion of the pin, and a lower surface and a surface of the protruding portion of the pin are formed. The length between them is greater than the thickness of the display panel, and the first contour line, which is the contour line of the cross-sectional shape of the pin having the protrusion, is the contour line of the through-hole fitted with the pin having the protrusion. The third contour, which is inside the second contour and is the contour of the overhang as viewed from the axial direction of the pin, is formed such that a part thereof is always outside the second contour. . Thus, when the display panel is assembled to the support component by fitting the pin and the through-hole, the projecting portion projects to the surface side of the axial display panel of the pin, and a part of the projecting portion is always outside the through-hole. That is, a part of the overhang portion overlaps the surface of the display panel. Therefore, the display panel is securely locked to the supporting parts by the overhang portion, and prevents the display panel from falling off when the display panel on which the supporting parts are mounted is turned upside down during the assembling work of the display device. it can. In addition, since a gap is formed between the pin and the through-hole in a state where the pin and the through-hole are fitted, when the distance between the pins is reduced due to the thermal contraction of the support component, the distance between the pins is reduced by the above-described gap. By absorbing the decrease, the compression force acting on the display panel can be eliminated or reduced, and the display panel can be prevented from being deformed.
[0010]
Here, when assembling the display panel to the support component by fitting the pin and the through-hole, the overhang portion and the display panel are elastically deformed, and the overhang portion passes through the through-hole. Therefore, the shape of the overhang, that is, the length of the pin extending radially outward, and the diameter of the through-hole can be easily assembled, that is, necessary for elastically deforming the overhang and the display panel. It is desirable that the setting be made so as to minimize unnecessary force and prevent the display panel from falling off by the overhanging portion.
[0011]
In the display device according to the second aspect of the present invention, at least one of the through holes that fits with the pin having the overhang is a long hole that is longer than the other through holes. Thus, when the amount of change in the distance between the pins when the support component is thermally shrunk is large, the above-described amount of change in the distance between the pins can be absorbed by moving the pin in the elongated hole. The display panel can be reliably prevented from being deformed by receiving a force from the pin.
[0012]
In the display device according to the third aspect of the present invention, the long hole is formed so that its longitudinal direction is substantially coincident with the heat shrink direction of the support component. Usually, each pin is provided at an end of the support component in order to improve the positioning accuracy between the display panel and the support component. Therefore, when the elongated supporting component is thermally contracted, the amount of deformation of each portion of the supporting component is maximized between the pins at both ends in the longitudinal direction of the supporting component. Therefore, if the elongated shape of the display panel is set as in the display device according to the third aspect of the present invention, the display panel is deformed by the force from the pins when the supporting component is thermally contracted. Can be reliably prevented.
[0013]
In a display device according to a fourth aspect of the present invention, in a state where the display panel is mounted on the supporting component, two sides in the longitudinal direction of the long hole are simultaneously in contact with the shaft of the pin. In this case, the shaft portion of the pin and the long hole have a light press-fit relationship, that is, the shaft portion of the pin and the long hole are in pressure contact with each other, but when the support component thermally contracts, the pin can slide freely in the long hole. By maintaining a certain relationship, the positional relationship between the display panel and the supporting component is maintained with good accuracy, and the display panel is deformed due to the force from the pins when the supporting component is thermally contracted. Can be prevented.
[0014]
In the display device according to the fourth aspect of the present invention, the support component is configured to be in contact with the light guide or the case of the display device. While maintaining the positional accuracy of the display panel and the light guide or the case in good condition, it is possible to reliably prevent the display panel from being deformed due to the force from the pins when the light guide or the case is thermally contracted. .
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an example in which the display device according to the first embodiment of the present invention is applied to a speedometer 1 mounted on an automobile will be described with reference to the drawings.
[0016]
(1st Embodiment)
FIG. 1 is a front view of a speedometer 1 according to a first embodiment of the present invention.
[0017]
FIG. 2 is a sectional view of the speedometer 1 according to the first embodiment of the present invention, and is a sectional view taken along line II-II in FIG.
[0018]
FIG. 3 is an enlarged view as viewed in the direction of the arrow III in FIG. 2, and FIG. 4 is an enlarged view similarly as viewed in the direction of the arrow IV in FIG.
[0019]
FIG. 5 is a sectional view taken along line VV in FIG.
[0020]
The speedometer 1 is provided in front of the driver's seat in the interior of the vehicle, and displays the traveling speed of the vehicle so that the driver can visually recognize the traveling speed by rotating the hands 5.
[0021]
First, the structure of the speedometer 1 will be briefly described.
[0022]
The speedometer 1 rotates the pointer 5 along the surface of the display panel 2 and indicates the traveling speed of the vehicle by the angle of the pointer 5.
[0023]
The display panel 2 is formed of a thin plate such as a resin or metal, and its surface (upper surface in FIG. 2) is provided with scales and numerals by printing or etching.
[0024]
On the back side of the display panel 2 (the lower side in FIG. 2), a light guide 3 as a support component is arranged so as to be in close contact with the display panel 2. The light guide 3 is formed of a translucent material, for example, a transparent acrylic resin. The light guide 3 is for causing the display panel 2 to emit light by effectively guiding the light emitted by the light emitting diode 6 described later to the display panel 2.
[0025]
On the back side (lower side in FIG. 2) of the light guide 3, a printed board 7 forming an electric circuit portion of the speedometer 1 is arranged.
[0026]
A movement 4 for rotating the hands 5 and a light emitting diode 6 as a light source for illuminating the display panel 2 are mounted on the printed circuit board 7.
[0027]
The movement 4 includes, for example, a cross-coil type driving unit (not shown), and rotates the shaft 4a by an angle corresponding to an external electric signal. The shaft 4a extends to the front side of the display panel 2 through the central hole 21 of the display panel 2 and the central hole 31 of the light guide 3, and a pointer 5 is fixed to a tip of the shaft 4a.
[0028]
The display panel 2, the light guide 3, the printed circuit board 7, the movement 4, and the like are housed and fixed in a resin case 8. A transparent cover 10 is mounted on the front side of the display panel 2 (on the driver side, the upper side in FIG. 1) via an annular dial plate 9.
[0029]
Next, the features of the speedometer 1 according to the first embodiment of the present invention, that is, the shapes of the display panel 2 and the light guide 3 and the effects thereof will be described.
[0030]
As shown in FIG. 2, the light guide 3 is formed with a plurality of pins 32 and 33 which protrude from the surface. The pins 32 and 33 include a shaft portion 34 having a circular cross section, and a projecting portion 35 formed at the tip of the shaft portion 34 so as to extend outside the outer periphery of the shaft portion 34. The pin 32 and the pin 33 have the same shape, but the extending direction of the overhang 35 is different as shown in FIG.
[0031]
By the way, in order to maintain good positional relationship accuracy between the light guide 3 and the display panel 2, the pins 32, 33 may be arranged on the light guide 3 so that the distance between them is as large as possible. desirable. In the speedometer 1 according to the first embodiment of the present invention, the pins 32 and 33 are arranged diagonally near the vertexes of the rectangle as shown in FIG.
[0032]
On the other hand, as shown in FIG. 1, the display panel 2 is provided with through holes 22 and 23 at positions corresponding to the pins 32 and 33 provided on the light guide 3, respectively. As shown in FIG. 1, the shape of the hole 22 is circular, and the shape of the hole 23 is a long hole, that is, a semicircle having the same diameter as the hole 22 is formed at both ends of a parallel portion having a width equal to the diameter of the hole 22. Shape.
[0033]
Hereinafter, the shapes of the pins 32 and 33 and the holes 22 and 23 will be described in detail.
[0034]
As shown in FIG. 3, the first outline 34 a which is the outline viewed from the axial direction of the shaft portion 34 of the pin 32 is inside the second outline 22 a which is the outline of the hole 22 of the display panel 2. . In other words, the diameter D1 of the shaft portion 34 is set smaller than the diameter d1 of the hole 22. The third contour 35a, which is the contour of the projecting portion 35 of the pin 32, is partially outside the second contour 22a, as shown in FIG. In other words, the length L1 of the overhang portion 35 in the overhang direction is set to be larger than the diameter d1 of the hole 22. The length L2 of the shaft portion 34 of the pin 32 is set to be larger than the thickness t of the display panel 2, as shown in FIG.
[0035]
As shown in FIG. 4, the first outline 34 a which is the outline viewed from the axial direction of the shaft portion 34 of the pin 33 is inside the second outline 23 a which is the outline of the hole 23 of the display panel 2. . In other words, the diameter D1 of the shaft portion 34 is set smaller than the width of the hole 23, that is, the diameter d1. In addition, the third contour 35a, which is the contour of the overhang 35 of the pin 33, is partially outside the second contour 23a, as shown in FIG. In other words, the length L1 of the overhang portion 35 in the overhang direction is set to be larger than the diameter d1 of the hole 22. Here, in the pin 33, as shown in FIG. 4, the extending direction B of the projecting portion 35 is set so as to be substantially orthogonal to the longitudinal direction C of the hole 23. Further, in the display panel 2, the longitudinal direction C of the hole 23 is set so as to substantially coincide with the direction A in FIG. 1 which is the direction connecting the centers of the shaft portions 34 of the pins 32 and 33 of the light guide 3. I have. Further, the length L2 of the shaft portion 34 of the pin 33 is set to be larger than the thickness t of the display panel 2 as in the case of the pin 32.
[0036]
By the way, in the assembling process of the speedometer 1, the pins 32, 33 of the light guide 3 are fitted into the holes 22, 23 of the display panel 2, respectively. As a result, the display panel 2 is supported and fixed on the light guide 3. At this time, the overhang portion 35 and the display panel 2 are elastically deformed, and the overhang portions 35 of the pins 32 and 33 pass through the holes 22 and 23. Therefore, the shape of the overhang portion 35, that is, the length extending radially outward of the shaft portion 34, and the diameter of the hole 22, that is, the width of the parallel portion of the hole 23, prevent the display panel 2 from falling off by the overhang portion 35. It is desirable that the force required for elastically deforming the overhang portion 35 and the display panel 2 during the assembling work be set to be as small as possible.
[0037]
In the speedometer 1 according to the first embodiment of the present invention, since the shapes of the pins 32 and 33 and the holes 22 and 23 are formed as described above, the pins 32 and 33 of the light guide 3 are connected to the display panel 2. When fitted into the holes 22 and 23, respectively, the overhangs 35 of the pins 32 and 33 surely protrude toward the surface of the display panel 2, and a part of the overhangs 35 is outside the holes 22 and 23. That is, it overlaps the surface of the display panel 2. Thus, even if the display panel 2 and the light guide 3 that are superimposed and fixed may be turned upside down (upside down in FIG. 2) during the assembly of the speedometer 1, the display panel 2 Is locked to each overhanging portion 35, so that the display panel 2 can be prevented from coming off the light guide 3.
[0038]
By the way, when the environmental temperature rises after the speedometer 1 is mounted on the automobile, the light guide 3 undergoes thermal contraction. In this case, the deformation of the light guide 3 is substantially uniform in all directions. Therefore, in the light guide 3 of the speedometer 1 according to the first embodiment of the present invention, the deformation in the direction A in FIG. 1 which is the diagonal direction of the rectangle, that is, the direction connecting the centers of the shafts 34 of the pins 32 and 33 is performed. The amount is maximum, and the reduction ratio of the distance between the pins 32 and 33 of the light guide 3 to the distance between the holes 22 and 23 of the display panel 2 is the largest. That is, the direction A is a heat contraction direction of the light guide 3. In the speedometer 1 according to the first embodiment of the present invention, a gap is formed between the pin 32 and the hole 22, and between the pin 33 and the hole 23, as described above. Further, the shape of the hole 23 is a long hole, and the longitudinal direction C of the hole 23 substantially coincides with the direction A in FIG. 1 which is the direction connecting the centers of the shafts 34 of the pins 32 and 33 of the light guide 3. Let me. Thereby, the movable length of the pin 33 with respect to the display panel 2 at the time of thermal contraction of the light guide 3 can be increased, so that at the time of thermal contraction of the light guide 3, the deformation of the light guide 3 can be surely performed by the holes 23. By absorbing, the display panel 2 can be prevented from being deformed by receiving a compressive force by the light guide 3.
[0039]
Further, since the extending direction B of the projecting portion 35 is set so as to be substantially perpendicular to the longitudinal direction C of the hole 23, even if the pin 33 moves in the hole 23 when the light guide 3 is thermally contracted, the projecting portion 35 projects. Since a part of the portion 35 is always outside the hole 23, the display panel 2 can be prevented from coming off the light guide 3.
[0040]
(2nd Embodiment)
FIG. 6 is an explanatory diagram showing the relationship between the pin 33 and the hole 23 in the speedometer 1 according to the second embodiment of the present invention, and corresponds to FIG.
[0041]
In the second embodiment, the shape of the pins 33 of the light guide 3 is changed from the first embodiment. That is, when the light guide 3 is attached to the display panel 2, the shaft portion 34 of the pin 33 is in contact with two longitudinal sides of the hole 23 as shown in FIG. 6. That is, in the pin 33, the diameter D1 of the shaft portion 34 is set slightly larger than the width of the hole 23, that is, the diameter d1. In this case, the fitting state of the shaft portion 34 of the pin 33 and the hole 23 is light press-fitting, but the diameter D1 of the shaft portion 34 and the width d1 of the hole 23 are different from each other when the light guide 3 is thermally contracted. 33 is set so that the shaft part 34 can move smoothly in the hole 23. Thereby, when the light guide 3 is attached to the display panel 2, it is possible to suppress a variation in the positional relationship between the two.
[0042]
(Third embodiment)
FIG. 7 is a sectional view showing the relationship between the pin 32 and the hole 22 in the speedometer 1 according to the third embodiment of the present invention, and corresponds to FIG.
[0043]
In the third embodiment, the shape of the pin 32 of the light guide 3 is changed from the first and second embodiments. That is, the diameter D1 of the shaft portion 34 of the pin 32 is set slightly larger than the diameter d1 of the hole 22, and the overhang portion 35 is omitted. In this case, the fitting between the shaft portion 34 of the pin 32 and the hole 22 is in a press-fit state, and the pin 32 is held by the elastic force due to the elastic deformation of the hole 22. Thus, even if the display panel 2 and the light guide 3 that are overlapped and fixed in the middle of the assembling of the speedometer 1 are turned upside down (upside down in FIG. 2), the protruding pins 33 are protruded. In cooperation with the locking action of the portion 35, the display panel 2 can be prevented from coming off the light guide 3.
[0044]
(Fourth embodiment)
In the fourth embodiment of the present invention, the display device of the present invention is applied to a combination meter 100 for an automobile.
[0045]
FIG. 8 shows a front view of a combination meter 100 according to a fourth embodiment of the present invention.
[0046]
In the fourth embodiment, as compared with the first to third embodiments, as shown in FIG. 8, the display content is increased and the length of the display panel 2 is increased. Correspondingly, the number of pins of the light guide 3 has also increased to a total of three, one pin 32 and two pins 36. As shown in FIG. 8, each of the pins 32 and 36 has the pin 32 disposed substantially at the center and the upper end in the longitudinal direction, and the pin 36 disposed at both ends and the lower end in the longitudinal direction. The pin 36 has the same shape as the pin 32, but the extending direction of the overhang 35 is different as shown in FIG. On the other hand, the display panel 2 is provided with a hole 24 for fitting to the pin 32 and a hole 25 for fitting to the pin 36. The hole 24 and the hole 25 are formed as long holes having the same shape as the hole 23 in the first embodiment shown in FIG. 4, and have a different longitudinal direction from the hole 23. That is, the longitudinal direction of the hole 24 coincides with the vertical direction of the display panel 2 (vertical direction in FIG. 8), and the longitudinal direction of the hole 25 coincides with the horizontal direction of the display panel 2 (horizontal direction in FIG. 8).
[0047]
Also in this case, as in the case of the first embodiment, the top and bottom of the display panel 2 and the light guide 3 that are overlapped and fixed are reversed during assembly of the combination meter 100 (in FIG. Even if the display panel 2 is turned upside down, the display panel 2 is locked to each overhanging portion 35, so that the display panel 2 can be prevented from coming off the light guide 3.
[0048]
When heat shrinkage occurs in the light guide 3, the dimensional change in the longitudinal direction (left and right direction in FIG. 8) of the light guide 3 is absorbed by the holes 25 of the display panel 2, and the vertical direction of the light guide 3 (FIG. 8) is absorbed by the holes 24 of the display panel 2. Accordingly, when the light guide 3 is thermally contracted, the deformation of the light guide 3 is reliably absorbed by the holes 24 and 25, and the display panel 2 is prevented from being deformed by receiving a compressive force by the light guide 3. it can.
[0049]
In the fourth embodiment, one of the three pins 32 and 36 may be changed to the same shape as the pin 33 in the second embodiment shown in FIG. That is, the fitting between the pins of the light guide 3 and the holes of the display panel 2 may be light press-fitting so that the pins can slide in the holes when the light guide 3 is thermally contracted.
[0050]
(Fifth embodiment)
FIG. 9 shows a front view of a speedometer 1 according to a fifth embodiment of the present invention.
[0051]
In the fifth embodiment, a case 8 is used instead of the light guide 3 as a support component that supports the display panel 2. That is, as shown in FIG. 9, the case 8 is provided with pins 81 and 82, and these pins 81 and 82 are fitted into the holes 22 and 23 of the display panel 2, respectively. Supported and fixed.
[0052]
Here, the shapes of the pins 81 and 82 provided in the case 8, that is, the shapes of the shaft portion 84 and the overhang portion 85 are the same as the pins 32 and 33 of the light guide 3 in the first embodiment of the present invention, respectively. . Therefore, the same effects as in the first embodiment can be obtained in the fifth embodiment. In other words, while the speedometer 1 is being assembled, the display panel 2 and the case 8 that are fixed to each other may be turned upside down (in FIG. Can be prevented from coming off.
[0053]
Further, when the case 8 is thermally contracted, the deformation of the case 8 can be reliably absorbed by the holes 22 and 23 of the display panel 2, and the display panel 2 can be prevented from being deformed by receiving a compressive force by the case 8.
[0054]
Note that, in the speedometer 1 according to the fifth embodiment of the present invention, the light guide 3 is fixed to the case 8 at a portion not shown.
[0055]
In the first to fifth embodiments of the present invention described above, the overhang portions 35 and 85 have shapes that overhang one side of the shaft portions 34 and 84 as shown in FIG. As in the modification of the overhang portion 35 shown in FIG. 10, the overhang may extend over the entire circumference of the shaft portions 34 and 84, that is, may be a substantially circular shape coaxial with the shaft portions 34 and 84.
[0056]
Further, in the first to fifth embodiments of the present invention, the cross-sectional shapes of the shaft portions 34 and 84 of each pin and the shape of the hole 22 are circular. However, it is not necessary to limit them to a circle, and other shapes may be used. Good.
[0057]
Further, in the first to fifth embodiments of the present invention and the modifications thereof, the case where the display device is applied to the speedometer 1 or the combination meter 100 for a vehicle has been described as an example. You may apply to the display apparatus in a use.
[Brief description of the drawings]
FIG. 1 is a front view of a speedometer 1 according to a first embodiment of the present invention.
FIG. 2 is a sectional view of the speedometer 1 according to the first embodiment of the present invention, which is a sectional view taken along line II-II of FIG.
FIG. 3 is an enlarged view as viewed from an arrow III in FIG. 2;
FIG. 4 is an enlarged view as viewed from an arrow IV in FIG. 2;
FIG. 5 is a sectional view taken along line VV in FIG. 3;
FIG. 6 is a partial sectional view of a speedometer 1 according to a second embodiment of the present invention.
FIG. 7 is a partial sectional view of a speedometer 1 according to a third embodiment of the present invention.
FIG. 8 is a front view of a combination meter 100 according to a fourth embodiment of the present invention.
FIG. 9 is a sectional view of a speedometer 1 according to a fifth embodiment of the present invention.
FIG. 10 is a front view of a modified example of the overhang portion 35 in the speedometer 1 according to the first to fifth embodiments of the present invention.
[Explanation of symbols]
1 speedometer (display device)
2 Display panel 21 Central hole 22 Hole (through hole)
22a 2nd contour line 23 hole (through hole, long hole)
23a 2nd contour line 24 hole (through hole, long hole)
25 holes (through holes, long holes)
3 Light Guide 31 Center Hole 32 Pin 33 Pin 34 Shaft 34a First Contour 35 Overhang 35a Third Contour 4 Movement 4a Shaft 5 Pointer 6 Light Emitting Diode 7 Printed Circuit Board 8 Case 81 Pin 82 Pin 84 Shaft 85 Overhang Part 9 return plate 10 transparent cover 100 combination meter (display device)
A direction (heat shrink direction)
B direction C direction (longitudinal direction)
D1 Diameter d1 Diameter L1 Length L2 Length t Thickness

Claims (5)

A support component having a plurality of pins projecting from a surface;
A display panel having a through hole at a position corresponding to the pin,
A display device in which the pin and the through-hole are fitted to each other and the display panel is mounted on the support component in an overlapping manner.
At least one of the plurality of pins has a protruding portion formed at its tip to extend outside the outer periphery of the shaft of the pin,
The length between the lower surface of the overhang portion and the surface of the pin is formed larger than the thickness of the display panel,
The first contour line, which is the contour line of the cross-sectional shape of the pin having the overhang portion, is inside the second contour line, which is the contour line of the through hole fitted with the pin having the overhang portion. A display device, wherein a third contour line, which is a contour line of the overhang portion as viewed from the axial direction of the pin, is formed such that a part thereof is always outside the second contour line. 2. The display device according to claim 1, wherein at least one of the through holes fitted with the pins having the protruding portions is a long hole having a length longer than other through holes. 3. The display device according to claim 2, wherein the elongated hole is formed such that a longitudinal direction thereof substantially coincides with a heat contraction direction of the support component. 4. The display device according to claim 2, wherein in a state where the display panel is mounted on the support component, two sides in a longitudinal direction of the long hole abut on a shaft of the pin at the same time. 5. . The display device according to claim 1, wherein the support component is a light guide or a case of the display device.

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