JP5297952B2 - Display device and vehicular instrument device including the display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device which can cause a liquid crystal display element to surely display various pieces of information by enhancing connection reliability of a flat circuit body in a simple configuration. <P>SOLUTION: The display device 1 includes a liquid crystal panel for displaying various pieces of information, a connection cable 10b drawn to the outside from the inside of the liquid crystal panel 10, a holder 21 holding the liquid crystal panel 10, and a cover member 27 covering the holder 21. The holder 21 is formed in a case shape having a bottom wall 22 and a peripheral wall 23 and has a deriving part 25 which extends from the outer edge part of the bottom wall 22 and has the connection cable 10b of the liquid crystal panel 10 located on the surface thereof to draw the connection cable 10b out of the holder 21. The cover member 27 is formed in a case shape having a front wall 28 and as peripheral wall 29 and has a covering part 29a which extends from the end part of the peripheral wall 29, and covers the connection cable 10b located on the surface of a recessed part 26 of the deriving part 25 of the holder 21 when the cover member 27 is mounted on the holder 21. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention includes a liquid crystal display element that displays predetermined information, a light source unit disposed on the back side of the liquid crystal display element, and an optical sheet disposed between the liquid crystal display element and the light source unit. The present invention relates to a display device and a vehicular instrument device including the display device.

  In display devices used for televisions, various computers, portable information terminals, car navigation systems, and the like, for example, liquid crystal display devices that can be reduced in weight, thickness, power consumption, and the like (see, for example, Patent Document 1). ) Has been proposed.

  A liquid crystal display device disclosed in Patent Document 1 includes a liquid crystal panel in which liquid crystal is sealed between a pair of transparent substrates, a light source unit that is disposed on the back side of the liquid crystal panel and irradiates the liquid crystal panel with light. A rear case that houses the liquid crystal panel and the light source unit in a stacked state, and a front cover that is attached to the front side of the rear case and has an exposed portion that exposes the display surface of the liquid crystal panel. .

  The liquid crystal panel includes a flat circuit body (FPC) led out from the inside of the liquid crystal panel. The back case includes a holding portion formed by cutting and raising the back case on the outer surface, and a protective plate that can be attached to and detached from the holding portion.

  In the liquid crystal display device having the above-described configuration, the liquid crystal panel is accommodated in the back case, the flat circuit body is led out of the back case, the flat circuit body is positioned in the holding portion, and a protective plate is attached to the holding portion. Thus, the flat circuit body is held in a state of being pressed against the back case.

JP 2002-333606 A

  However, in the liquid crystal display device disclosed in Patent Document 1 described above, the flat circuit body led out of the back case is positioned in the holding portion provided on the outer surface of the back case, and a protective plate is attached to the holding portion. Thus, since the flat circuit body is held in a state of being pressed against the back case, the flat circuit body is exposed to the outside of the back case, and the flat circuit body may be damaged. Further, since the FPC is held by attaching a protective plate to the holding portion, workability during assembly is poor and the number of parts tends to increase.

  Thus, in the liquid crystal display device disclosed in Patent Document 1 described above, there are problems that workability at the time of assembly is poor, the number of parts increases, and the FPC (flat circuit body) may be damaged at the time of assembly. there were.

  Therefore, in view of the above-described problems, the present invention improves the connection reliability of a flat circuit body with a simple configuration, and can reliably display various information on a liquid crystal display element, and the display An object of the present invention is to provide a vehicular instrument device including the device.

In order to solve the above problems, the invention described in claim 1 is a liquid crystal display element for displaying various information, a flat circuit body led out from the inside of the liquid crystal display element, and the liquid crystal display element. And a cover member provided with an exposed portion that covers the holder and exposes the liquid crystal display element, the display device 1 extending from the holder, and the flat circuit A lead-out part for positioning the body on the surface and leading out to the outside of the holder; and extending from the cover member; and when the cover member is attached to the holder, the lead-out part is positioned on the surface of the lead-out part wherein and a cover portion covering the flat circuit body, the deriving unit is provided with a recess in which the cover portion is positioned extending Mashimashi and inwardly along the extending direction of the flat circuit body with A display device, characterized in that there.

According to a second aspect of the present invention, in the first aspect of the present invention, the cover portion includes rail portions protruding from both ends in the width direction, and the concave portion extends along a direction in which the flat circuit body is led out. In addition to extending, the rail portion is provided with a guide groove that guides the movement of the rail portion.

According to a third aspect of the present invention, there is provided a vehicular instrument device that is mounted on a vehicle and that indicates the state of the vehicle by an indicator portion formed on the dial and a pointer provided in front of the dial in cooperation with each other. The vehicle instrument device according to claim 1, comprising the display device according to claim 1 , wherein the display device is disposed on an occupant side of the dial on the vehicle.

  According to the first aspect of the present invention, the lead-out part that extends from the holder and that leads the outside of the holder by positioning the flat circuit body on the surface and the cover member that extends from the cover member and is attached to the holder And a cover portion that covers the flat circuit body positioned on the surface of the lead-out portion of the holder, so that by attaching the cover member to the holder, the lead-out portion of the holder and the cover portion of the cover member Thus, the flat circuit body led out of the holder can be protected. For this reason, it is possible to prevent the flat circuit body from being damaged and increase the connection reliability of the flat circuit body without increasing the number of parts and the number of assembly steps.

In addition , since the lead-out portion includes a recess that extends along the lead-out direction of the flat circuit body and in which the cover portion is positioned, the cover member cover portion is positioned in the recess of the lead-out portion of the holder. The cover member can be positioned on the holder. For this reason, while being able to assemble a holder and a cover member easily, generation | occurrence | production of the assembly defect of a holder and a cover member can be prevented.

According to the invention described in claim 2 , the cover portion includes the rail portion protruding from both ends in the width direction, the recess portion extends along the lead-out direction of the flat circuit body, and the rail portion enters. Since the guide groove for guiding the movement of the rail portion is provided, the cover portion of the cover member can be inserted into the concave portion of the lead-out portion of the holder along the lead-out direction of the flat circuit body.

According to the invention described in claim 3 , the vehicle instrument device includes the display device according to claim 1 or 2 , and the display device is disposed on the passenger side of the dial plate. Therefore, by improving the connection reliability of the flat circuit body with a simple configuration, various types of information can be reliably displayed on the liquid crystal display element. Can be displayed. Moreover, since the flat circuit body is shielded from the vehicle occupant by the covering portion, the decorativeness can be improved.

  As described above, the invention according to claim 1 can protect the flat circuit body led out of the holder by the lead-out part of the holder and the cover part of the cover member by attaching the cover member to the holder. Therefore, the flat circuit body can be prevented from being damaged and the connection reliability of the flat circuit body can be improved without increasing the number of parts and the number of assembly steps. For this reason, the connection reliability of the flat circuit body can be improved with a simple configuration, and various information can be reliably displayed on the liquid crystal display element.

In addition , since the cover member and the holder can be positioned by positioning the cover portion of the cover member in the recess of the lead-out portion of the holder, the holder and the cover member can be easily assembled, and the holder and the cover Generation | occurrence | production of the assembly defect with a member can be prevented. For this reason, it is possible to improve the assemblability.

According to the second aspect of the present invention, the cover portion of the cover member can be inserted into the recess of the lead-out portion of the holder along the lead-out direction of the flat circuit body. By positioning in the recess, the assembly trajectory is restricted, and the cover member and the holder can be positioned reliably.

The invention according to claim 3 includes the display device described above, and the display device is disposed on the passenger side of the dial plate, so that the connection reliability of the flat circuit body is improved with a simple configuration. As a result, various types of information can be reliably displayed on the liquid crystal display element, and thus various types of information can be reliably displayed to the vehicle occupant. Moreover, since the flat circuit body is shielded from the vehicle occupant by the covering portion, the decorativeness can be improved. Therefore, it can be set as the instrument device for vehicles excellent in visibility and decoration nature.

It is a top view which shows the front of the instrument device for vehicles provided with the display apparatus of this invention. FIG. 2 is a perspective view showing the display device shown in FIG. 1. It is a perspective view which shows the state which removed the cover member of the display apparatus shown by FIG. It is sectional drawing which follows the IV-IV line in FIG.

  Hereinafter, a display device according to an embodiment of the present invention and a vehicle instrument device including the display device will be described with reference to FIGS. 1 to 4. A display device 1 according to an embodiment of the present invention is used in a known vehicular instrument device 2 mounted on a vehicle such as an automobile. This vehicular instrument device 2 is a device that displays the state of the vehicle to a vehicle occupant.

  As shown in FIG. 1 or 4, the vehicular instrument device 2 includes a speedometer 3 that displays the speed of the vehicle as a pointer-type display instrument, a display device 1 that displays various information indicating the status of the vehicle, A printed wiring board 4 on which various electronic components and the like are mounted, an instrument case 5 that accommodates the speedometer 3, the display device 1, the printed wiring board, and the like, and an occupant side of the instrument case 5, that is, the front side. The facing member 6 and the transparent cover 7 covering the passenger side of the facing member 6, that is, the front side, are provided.

  In the present embodiment, in order to simplify the description, only the speedometer 3 that is a pointer-type display instrument that indicates the speed of the vehicle is provided. However, a tachometer that indicates the engine speed of the vehicle is also included. Of course, it may be configured to include a pointer-type instrument such as a water temperature meter indicating the engine coolant temperature and a fuel meter indicating the remaining fuel amount.

  As shown in FIG. 1 or FIG. 2, the speedometer 3 has a dial 30 provided with a scale for displaying vehicle speed and an index portion 31 such as numerals, characters or symbols on the surface (surface on the viewer side), A pointer 32 disposed on the viewer side of the dial plate 30, a movement 35 to which the pointer 32 is attached, and a decorative ring 37 disposed on the outer periphery of the indicator portion 31 of the dial plate 30 are provided.

  The dial 30 is made of translucent synthetic resin or the like and is formed in a disc shape. The dial 30 is provided with a light shielding layer on the surface, and the indicator portion 31 is formed by removing the indicator portion 31 of the light shielding layer. In the dial plate 30, the indicator portion 31 is arranged in a substantially arc shape corresponding to the allowable rotation range of the pointer 32, and the indicator portion 31 transmits light from behind to the front (occupant side). Light emission is visually recognized by a vehicle occupant (user).

  The pointer 32 is made of a light-transmitting material such as acrylic resin, and extends to the base end portion 33 serving as a central axis and linearly extends from the base end portion 33 and points to the index portion 31 described above. And an instruction unit 34. The pointer 32 is attached to an output shaft 36 (described later) of the movement 35 in a state where the base end portion 33 is located at the center of the indicator portion 31 of the dial 30, and is arranged on the vehicle passenger side, that is, the front side of the dial 30. Be placed. The pointer 32 rotates integrally with an output shaft 36 described later of the movement 35.

  The pointer 32 having the above-described configuration is rotated by the movement 35 in accordance with a measurement amount measured by a vehicle speed measurement unit (not shown), and displays the measurement amount in cooperation with the indicator portion 31 provided on the dial 30. To do. In addition, the pointer 32 reflects light incident on the base end portion 33 from the LED 38 (described later) of the printed wiring board 4 toward the distal end of the indication portion 34 when the pointer 32 is dark, such as at night. The indicator 34 shines.

  As shown in FIG. 2, the movement 35 is attached to the side away from the viewer of the printed wiring board 4, that is, the rear side, and is housed in the instrument case 5. Connected with the means. The movement 35 includes an output shaft 36 that rotates in accordance with a measurement amount measured by the vehicle speed measurement means.

  The decorative ring 37 is formed in a ring shape in plan view, and is attached to the surface of the dial 30 (a surface visually recognized by the occupant) so that the decorative ring 37 is attached to the outside of the indicator portion 31 of the dial 30 when viewed from the occupant side of the vehicle. It is provided so as to border the periphery.

  As shown in FIG. 1 or FIG. 4, the display device 1 is disposed on the vehicle occupant side of the base end portion 33 so as to cover the base end portion 33 of the pointer 32 described above. That is, the display device 1 is arranged on the vehicle occupant side of the dial 30 described above. And the display apparatus 1 displays the various information which shows the states of vehicles, such as a shift position, a travel distance, average speed, and fuel remaining amount. The detailed configuration of the display device 1 will be described later.

  The printed wiring board 4 is made of a relatively hard material having no flexibility, and is formed in a substantially rectangular flat plate shape. The printed wiring board 4 includes a plurality of LEDs 38 that illuminate the indicator portion 31 and the pointer 32 described above, the movement 35 described above, and the liquid crystal panel 10 and the light source unit described later of the plurality of LEDs 38 and the movement 35 and the display device 1. Electronic components such as a control unit for controlling the operation of 11 and the like are electrically connected and mounted. The printed wiring board 4 is arranged substantially in parallel with a front wall 41 of a case body 40 (to be described later) of the instrument case 5 and a bottom wall 46 of the back cover 45, and is attached between the case body 40 and the back cover 45. And accommodated in the instrument case 5.

  The instrument case 5 is formed of a synthetic resin or the like, and includes a case main body 40 and a back cover 45 as shown in FIG. The case main body 40 includes a front wall 41 facing the vehicle occupant and a peripheral wall 42 extending from the outer peripheral edge of the front wall 41 in a direction away from the vehicle occupant. The case main body 40 is formed in a box shape that opens to the side away from the occupant, that is, the back side.

  The front wall 41 is provided with a plurality of openings 43 through which the output shaft 36 of the movement 35 described above passes and light from the plurality of LEDs 38 of the printed wiring board 4 to the dial 30 and the pointer 32 side. Yes. The peripheral wall 42 forms an outline of the case body 40. The case body 40 has a dial 30 on the surface of the front wall 41 on the occupant side of the vehicle, and a decorative ring 37 is attached so as to sandwich the dial 30 with the front wall 41.

  As shown in FIG. 4, the back cover 45 includes a bottom wall 46 and a peripheral wall 47 erected from the outer peripheral edge of the bottom wall 46 and extending toward the vehicle occupant side. It is formed in the shape of a case that is open. The back cover 45 is attached to the side of the case body 40 away from the viewer, that is, the back side, and closes the opening of the case body 40.

  The facing member 6 is made of synthetic resin or the like, and has openings in portions corresponding to the speedometer 3 and the display device 1 as shown in FIG. The turning member 6 is attached to the vehicle occupant side of the case body 40 of the instrument case 5, that is, the front side, and shields the speedometer 3 and the display device 1 other than the display portion from the vehicle occupant.

  The transparent cover 7 is made of a transparent resin or the like and is formed in a flat plate shape. As shown in FIG. 4, the transparent cover 7 is attached to the case body 40 in such a manner that the turn-back member 6 is sandwiched between the instrument case 5 and the front wall 41 of the case body 40. The transparent cover 7 covers the occupant side, that is, the front side of the vehicle such as the speedometer 3, the display device 1, and the look-back member 6, and prevents dust and the like from entering the vehicle instrument device 2.

  As shown in FIGS. 2 to 4, the display device 1 described above is disposed on a liquid crystal panel 10 as a liquid crystal display element and a back side of the liquid crystal panel 10 away from a vehicle occupant to illuminate the liquid crystal panel 10. A light source unit 11 (shown in FIG. 4), a plurality of lens sheets 17 (shown in FIG. 4) disposed between the liquid crystal panel 10 and the light source unit 11, a liquid crystal panel 10 and a plurality of lens sheets 17 And a case 20 that accommodates the light source unit 11 in a stacked state.

  As the liquid crystal panel 10, a well-known LCD (liquid crystal display) capable of transmitting light from the back side is used. Further, the liquid crystal panel 10 includes a connection cable 10b as a flat circuit body led out from the inside of the liquid crystal panel 10 to the outside. As the connection cable 10b, a well-known thin FFC (flexible flat cable), FPC (flexible printed circuit), or the like is used. One end of the connection cable 10b is electrically connected to the liquid crystal panel 10, and the other end is electrically connected to the control unit (not shown) of the printed wiring board 4 described above.

  The liquid crystal panel 10 having the configuration described above is electrically connected to a control unit (not shown) provided on the printed wiring board 4 described above via a connection cable 10b. The liquid crystal panel 10 displays various types of information indicating the vehicle state such as the shift position, the travel distance, the average speed, and the fuel remaining amount on the display surface 10a under the control of the control unit.

  In the present embodiment, an LCD (Liquid Crystal Display) is used as the liquid crystal panel 10. However, for example, a TFT liquid crystal (thin film transistor), a DSTN (Dual-scan Super Twisted Nematic) liquid crystal, or the like may be used. A self-luminous device such as (VFD) can be used.

  As shown in FIG. 4, the light source unit 11 is disposed so as to face the back side of the liquid crystal panel 10 away from the vehicle occupant, and for the light source on which the light source 14 for illuminating the liquid crystal panel 10 is mounted. The light guide plate 12 which guides the light from the said light source 14 to the liquid crystal panel 10 and the reflective sheet 16 arrange | positioned on the back side away from the passenger | crew of the vehicle of the light guide plate 12 are provided.

  The light source substrate 13 is made of a relatively hard material that does not have flexibility, and is formed in a substantially rectangular flat plate shape. As shown in FIG. 4, when the light source substrate 13 is accommodated in a substrate accommodating portion 24 of a holder 21 (to be described later) of the case 20, an LED or A light source 14 such as a bulb and a connector 15 are provided. The light source substrate 13 is electrically connected to the above-described printed wiring board 4 by the wire 15a connected to the connector 15 and the wire 15a. As the electric wire 15a, a well-known thin FFC (flexible flat cable), FPC (flexible printed circuit), or the like is used.

  The light guide plate 12 is made of a transparent synthetic resin or the like and is formed in a flat plate shape. As shown in FIG. 4, a light receiving portion 12a for receiving light from the light source 14 is provided on a part of the outer periphery. It has been. The light guide plate 12 is disposed on the back side of the liquid crystal panel 10 away from the vehicle occupant and is accommodated in a holder 21 described later of the case 20 so as to be interposed between the liquid crystal panel 10 and the light source 14. The light guide plate 12 emits light from the light source 14 received by the light receiving unit 12a toward the liquid crystal panel 10.

  The reflection sheet 16 is made of a synthetic resin or the like and is formed in a thin film shape. As shown in FIG. 4, the reflection sheet 16 is disposed on the back side of the light guide plate 12 away from the vehicle occupant, and is laminated with the light guide plate 12 and accommodated in a holder 21 described later of the case 20. The reflection sheet 16 reflects the light from the light source 14 that has passed through the light guide plate 12 toward the light guide plate 12.

  The light source unit 11 having the above-described configuration is turned on under the control of the control unit described above when the liquid crystal panel 10 performs display, so that light for transmitting the liquid crystal panel 10, that is, for causing the liquid crystal panel 10 to emit light. Emits the light.

  The plurality of lens sheets 17 are made of a transparent synthetic resin or the like and are formed in a thin film shape. The plurality of lens sheets 17 have an outer shape that is substantially equal to that of the liquid crystal panel 10 described above. As shown in FIG. 4, the plurality of lens sheets 17 are disposed between the liquid crystal panel 10 and the light guide plate 12 of the light source unit 11, and are stacked on the liquid crystal panel 10 and the light guide plate 12 in the case 20. It accommodates in the holder 21 mentioned later.

  The plurality of lens sheets 17 described above converges the light from the light source 14 that has passed through the light guide plate 12 of the light source unit 11 to the vehicle occupant side, that is, the front side of the liquid crystal panel 10. In the present embodiment, a plurality of lens sheets 17 are laminated and used. However, for example, an optical sheet such as a polarizing sheet or a brightness enhancement sheet may be used, and a plurality of optical sheets each having different optical characteristics are used. Can be used.

  The case 20 is made of an insulating synthetic resin, and includes a holder 21 and a cover member 27 that covers the holder 21 as shown in FIG. 2 or FIG.

  As shown in FIG. 3 or FIG. 4, the holder 21 includes a disc-shaped bottom wall 22 and a substantially cylindrical peripheral wall 23 that stands from the outer peripheral edge of the bottom wall 22 and extends toward the vehicle occupant side. Thus, it is formed in a case shape opened to the occupant side. The holder 21 has a pair of holding pieces 23 a for holding the liquid crystal panel 10, a substrate housing portion 24 for housing the light source substrate 13, and a lead-out portion 25 for leading the connection cable 10 b of the liquid crystal panel 10 to the outside of the holder 21. And.

  Each of the pair of holding pieces 23 a protrudes from an end portion of the peripheral wall 23 away from the bottom wall 22. The pair of holding pieces 23 a are disposed so as to be opposed to the radial direction of the peripheral wall 23. The pair of holding pieces 23a are formed so as to be elastically deformable in directions away from each other. The pair of holding pieces 23 a hold the liquid crystal panel 10 with the liquid crystal panel 10 described above being sandwiched therebetween.

  The substrate housing portion 24 is formed so as to penetrate the bottom wall 22 and is adjacent to the peripheral wall 23. The substrate accommodating portion 24 accommodates the light source substrate 13 inside in a state where the light source 14 of the light source substrate 13 is opposed to the light receiving portion 12a of the light guide plate 12.

  The lead-out portion 25 extends from the outer edge portion of the bottom wall 22 in a direction away from the vehicle occupant. That is, the lead-out portion 25 extends in the direction opposite to the peripheral wall 23 with the bottom wall 22 interposed therebetween. Further, the lead-out portion 25 is provided with a concave portion 26 that is formed in a concave shape from the outer surface. The recess 26 extends from one end connected to the bottom wall 22 of the lead-out portion 25 toward the other end away from the bottom wall 22. Then, the recess 26 has the connection cable 10b described above positioned on the surface thereof, and guides the connection cable 10b to the outside of the holder 21. The extending direction of the concave portion 26 is a direction in which the connection cable 10b is led out.

  Further, the recess 26 is provided with a guide groove 52 formed in a concave shape from the inner surface. The guide groove 52 extends in the extending direction of the concave portion 26, that is, from one end connected to the bottom wall 22 of the lead-out portion 25 toward the other end away from the bottom wall 22. A plurality of guide grooves 52 are provided in the recess 26 and are arranged in parallel to each other on both sides in the width direction perpendicular to the extending direction of the recess 26. A rail portion 51 of a cover portion 29a (described later) of the cover member 27 enters the guide groove 52, and the cover portion 29a is inserted into the recess portion 26 along the surface of the recess portion 26. That is, the guide groove 52 allows the rail portion 51 to enter inside, and the cover portion 29a is inserted into the concave portion 26 along the direction in which the connection cable 10b is led out.

  The holder 21 having the above-described configuration accommodates the reflection sheet 16 and the light guide plate 12 of the light source unit 11 and the plurality of lens sheets 17 inside the peripheral wall 23, thereby guiding the reflection sheet 16 and the guide on the surface of the bottom wall 22. The optical plate 12 and the plurality of lens sheets 17 are positioned in a sequentially stacked state. And while holding liquid crystal panel 10 in the state where liquid crystal panel 10 was piled up on the front side of a plurality of lens sheets 17 by a pair of holding pieces 23a, connection cable 10b of liquid crystal panel 10 is connected to the surface of recess 26 of lead-out part 25 Positioned above and led out of the holder 21.

  The cover member 27 includes a front wall 28 facing the vehicle occupant and a peripheral wall 29 extending from the outer peripheral edge of the front wall 28 in a direction away from the vehicle occupant, and is open on the side away from the occupant, that is, on the back side. It is formed in a case shape. The peripheral wall 29 is provided so as to cover the outer periphery of the peripheral wall 23 of the holder 21 when the cover member 27 is attached to the holder 21, and forms an outline of the case 20.

  The cover member 27 is a cover portion 29a that covers an exposed portion 28a that exposes the display surface 10a of the liquid crystal panel 10 to a vehicle occupant and a connection cable that is positioned on the surface of the concave portion 26 of the lead-out portion 25 described above. And. The exposed portion 28a penetrates the front wall 28 and is formed in a substantially circular shape.

  The cover portion 29 a is formed in a band plate shape, and extends at the end portion of the peripheral wall 29 away from the front wall 28 along the direction of standing from the front wall 28 of the peripheral wall 29. When the cover member 27 is attached to the holder 21 described above, the cover portion 29a is positioned in the concave portion 26 of the lead-out portion 25 of the holder 21.

  Moreover, the cover part 29a is provided with a rail part 51 formed in a convex shape from both ends in the width direction. The rail portion 51 extends along the extending direction of the cover portion 29a, and is arranged in parallel to each other on both sides in the width direction of the cover portion 29a. Then, the rail portion 51 enters the guide groove 52 provided in the concave portion 26 of the lead-out portion 25 described above, and the cover portion 29a is inserted into the concave portion 26 along the surface of the concave portion 26. That is, the rail part 51 penetrates into the guide groove 52, and the cover part 29a is inserted into the concave part 26 along the lead-out direction of the connection cable 10b.

  Below, the method to assemble the display apparatus 1 of the structure mentioned above is demonstrated.

  First, the reflection sheet 16 and the light guide plate 12 are sequentially stacked on the surface of the bottom wall 22 of the holder 21, the light source substrate 13 is accommodated in the substrate accommodating portion 24 of the holder 21, and the electric wire 15 a is passed through the substrate accommodating portion 24. The light source unit 11 is accommodated in the holder 21 by being led out of the holder 21. Then, the plurality of lens sheets 17 are sequentially stacked on the front surface side of the light guide plate 12 of the light source unit 11, and the light guide plate 12 of the light source unit 11 and the plurality of lens sheets 17 are stacked on each other and accommodated in the holder 21. To do.

  Next, the liquid crystal panel 10 is stacked on the front side of the plurality of lens sheets 17 accommodated in the holder 21, and the liquid crystal panel 10 is sandwiched between the pair of holding pieces 23 a of the holder 21. The pair of holding pieces 23 a, that is, the holder 21 holds, and the connection cable 10 b is positioned on the surface of the concave portion 26 of the lead-out portion 25 of the holder 21 and led out of the holder 21.

  Finally, as shown in FIG. 3, the holder 21 and the cover member 27 are opposed to each other so as to be aligned coaxially, and the cover member 27 is inserted into the guide groove 52 provided in the recess 26 of the lead-out portion 25 of the holder 21. By inserting the rail portion 51 provided in the cover portion 29a, the cover portion 29a of the cover member 27 is inserted into the recess portion 26 of the lead-out portion 25 of the holder 21 along the surface of the recess portion 26. 27 is attached to the holder 21.

  Then, the cover member 27 covers the holder 21, the display surface 10 a of the liquid crystal panel 10 is exposed from the exposed portion 28 a of the cover member 27, and the cover portion 29 a of the cover member 27 is in the recess 26 of the lead-out portion 25 of the holder 21. The cover portion 29a covers the connection cable 10b positioned on the surface of the recess portion 26 of the lead-out portion 25. Thus, the display device 1 is assembled.

  According to the present embodiment, the lead-out portion 25 extending from the holder 21 and positioning the connection cable 10b on the surface and leading out to the outside of the holder 21, and the cover member 27 extending from the cover member 27 and attached to the holder 21 And a cover portion 29a that covers the connection cable 10b positioned on the surface of the lead-out portion 25 of the holder 21.

  For this reason, by attaching the cover member 27 to the holder 21, the connection cable 10 b led out of the holder 21 can be protected by the lead-out portion 25 of the holder 21 and the cover portion 29 a of the cover member 27. Without increasing the number of assembly steps, the connection cable 10b can be prevented from being damaged and the connection reliability of the connection cable 10b can be improved. Therefore, the connection reliability of the connection cable 10b can be improved with a simple configuration, and various information can be reliably displayed on the liquid crystal panel 10.

  In addition, since the lead-out portion 25 includes the concave portion 26 that extends along the lead-out direction of the connection cable 10 b and the cover portion 29 a is positioned on the inside, the cover portion 29 a of the cover member 27 is replaced with the lead-out portion 25 of the holder 21. The cover member 27 and the holder 21 can be positioned by positioning in the recess 26. For this reason, while being able to assemble the holder 21 and the cover member 27 easily, generation | occurrence | production of the assembly defect of the holder 21 and the cover member 27 can be prevented. Therefore, the assembling property can be improved.

  Further, the cover portion 29a includes rail portions 51 protruding from both ends in the width direction, the recess portion 26 extends along the direction in which the flat circuit body 10b is led out, and the rail portion 51 enters and the rail portion 51 enters. Since the guide groove 52 for guiding the movement of the cover member 27 is provided, the cover portion 29a of the cover member 27 can be inserted into the concave portion 26 of the lead-out portion 25 of the holder 21 along the lead-out direction of the flat circuit body 10b. For this reason, by positioning the cover part 29a of the cover member 27 in the recess 26 of the lead-out part 25 of the holder 21, the assembling locus is restricted and the cover member 27 and the holder 21 can be positioned reliably.

  In addition, the vehicle instrument device 2 of the present embodiment includes the display device 1 described above, and the display device 1 is disposed on the vehicle occupant side of the dial 30, so that the connection cable can be configured with a simple configuration. By improving the connection reliability of 10b, various types of information can be reliably displayed on the liquid crystal panel 10, and thus various types of information can be reliably displayed to the vehicle occupant. Moreover, since the connection cable 10b is shielded from the vehicle occupant by the covering portion 29a, the decorativeness can be improved. Therefore, it can be set as the instrument device 2 for vehicles excellent in visibility and decoration.

  In the embodiment described above, the light source unit 11 for illuminating the liquid crystal panel 10 is arranged such that the light source 14 mounted on the light source substrate 13 faces the light receiving unit 12 a provided on a part of the outer periphery of the light guide plate 12. The sidelight system is used. However, in the present invention, the light source unit may employ a direct type system in which a diffusion plate is arranged on the back side of the liquid crystal panel 10 and a plurality of cold cathode tubes are arranged on the back side of the diffusion plate. good.

  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.

DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Instrument apparatus 10 Liquid crystal panel (liquid crystal display element)
10b Connection cable (flat circuit body)
21 Holder 25 Lead-out part 26 Recess 27 Cover member 28a Exposed part 29a Cover part 30 Dial 31 Indicator part 32 Pointer 51 Rail part 52 Guide groove

Claims (3)

A liquid crystal display element for displaying various information, a flat circuit body led out from the inside of the liquid crystal display element, a holder for holding the liquid crystal display element, and covering the holder and exposing the liquid crystal display element A display device provided with a cover member provided with an exposed portion,
A lead-out portion that extends from the holder and leads the outside of the holder by positioning the flat circuit body on the surface;
A cover portion extending from the cover member and covering the flat circuit body positioned on the surface of the lead-out portion when the cover member is attached to the holder ;
The display device, wherein the lead-out portion includes a concave portion that extends along a lead-out direction of the flat circuit body and in which the cover portion is positioned. The cover includes a rail portion protruding from both ends in the width direction,
Said recess, said while extending along the extending direction of the flat circuit body, according to claim 1, further comprising a guide groove in which the rail portion from entering to guide the movement of the rail section Display device. In the vehicle instrument device that is mounted on the vehicle and indicates the state of the vehicle in cooperation with an indicator portion formed on the dial and a pointer provided in front of the dial,
The display device according to claim 1 or 2 , comprising:
The vehicle instrument device according to claim 1, wherein the display device is disposed on the occupant side of the vehicle on the dial.

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