WO2011093159A1 - Dispositif indicateur - Google Patents

Dispositif indicateur Download PDF

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Publication number
WO2011093159A1
WO2011093159A1 PCT/JP2011/050641 JP2011050641W WO2011093159A1 WO 2011093159 A1 WO2011093159 A1 WO 2011093159A1 JP 2011050641 W JP2011050641 W JP 2011050641W WO 2011093159 A1 WO2011093159 A1 WO 2011093159A1
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WO
WIPO (PCT)
Prior art keywords
liquid crystal
light
light source
light guide
display
Prior art date
Application number
PCT/JP2011/050641
Other languages
English (en)
Japanese (ja)
Inventor
博明 金子
Original Assignee
日本精機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本精機株式会社 filed Critical 日本精機株式会社
Publication of WO2011093159A1 publication Critical patent/WO2011093159A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/60—Instruments characterised by their location or relative disposition in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/215—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays characterised by the combination of multiple visual outputs, e.g. combined instruments with analogue meters and additional displays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/28—Structurally-combined illuminating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
    • B60K2360/33—Illumination features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
    • B60K2360/33—Illumination features
    • B60K2360/349—Adjustment of brightness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/60—Structural details of dashboards or instruments
    • B60K2360/68—Features of instruments
    • B60K2360/698—Pointers of combined instruments

Definitions

  • the present invention relates to an instrument device mounted on, for example, an automobile or a motorcycle, and in particular, a combination meter that incorporates a pointer-type instrument that indicates a measurement amount such as a vehicle speed and an engine speed, and a liquid crystal display that displays various information. It is related with the instrument apparatus called.
  • the instrument device includes a driving body such as a stepping motor, a pointer connected to the driving body, a display board having an indicator portion indicated by the pointer, and a display board guide disposed behind the display board.
  • a light body, a liquid crystal panel for displaying various information, a liquid crystal light guide disposed behind the liquid crystal panel, and at least a drive body and a liquid crystal panel are electrically connected and a light guide for display plate
  • Patent Documents 2 and 3 below those that illuminate a liquid crystal panel or a display plate by an edge light (side light) illumination method are known.
  • the instrument device described in Patent Document 2 below illuminates a liquid crystal panel by an edge light method.
  • the liquid crystal guide is orthogonal to the thickness direction.
  • a light source is arranged on the side end surface of the light body, and light from the light source is introduced from the side end surface to emit light.
  • the instrument device described in Patent Document 3 below illuminates the display board by an edge light method, and when the viewing direction of the user is the thickness direction of the light guide for the display board, the display is orthogonal to the thickness direction.
  • a light source is arranged on the side end face of the light guide for plate, and light from the light source is introduced from the side end face to emit light.
  • the present invention pays attention to the above-mentioned problems and aims to provide an instrument device that can achieve cost reduction.
  • the present invention relates to a drive main body, a pointer connected to the drive main body, a display board having an indicator portion indicated by the pointer, a light source for a display board that illuminates the display board, and a light source for the display board
  • a light guide for a display plate that guides light to the display plate a liquid crystal panel that displays various information, a light source for liquid crystal that illuminates the liquid crystal panel, and a liquid crystal guide that guides light from the light source for liquid crystal to the liquid crystal panel.
  • the light source for the display plate and the light source for the liquid crystal are incident on each side end surface of the light guide for the display plate and the light guide for the liquid crystal so that light of the light source for the liquid crystal is incident on the edge light system.
  • Instrument device comprising a light source and a liquid crystal light source arranged opposite to each other A light source substrate having a first substrate portion facing the light receiving surface of the light guide for liquid crystal and a second substrate portion facing the light receiving surface of the light guide for display plate in succession.
  • the display board light source and the liquid crystal light source are respectively mounted on each of the substrate portions.
  • the present invention is characterized in that it has a metal base member that supports at least the liquid crystal panel and the light guide for liquid crystal, and the light source substrate is attached to the base member.
  • This configuration eliminates the need for a dedicated component for mounting the light source substrate, and allows the heat radiation member to be shared by performing heat radiation of the display plate light source and the liquid crystal light source with a base member. Cost reduction is possible.
  • the present invention is characterized in that the light guide for display panel and the light guide for liquid crystal are integrated via a connecting portion. With this configuration, the number of parts can be reduced, and further cost reduction can be achieved.
  • the invention is characterized in that a liquid crystal panel, the display plate light guide, the liquid crystal light guide, and the light source substrate are combined through a predetermined member. With such a configuration, assembly is facilitated and further cost reduction is possible.
  • an instrument device that can achieve cost reduction can be provided.
  • FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1 (hatching is omitted).
  • the instrument device As shown in FIGS. 1 to 3, the instrument device according to the first embodiment of the present invention includes a back cover 1, a circuit board 2, a support member 3, a lighting unit 4, a panel member 5, and a first member.
  • the display board 6, the second display board 7, and the pointer 8 are provided.
  • the back cover 1 is formed in a bottomed frame body whose front is opened with, for example, a light-blocking or translucent synthetic resin.
  • the circuit board 2, the support member 3, the lighting unit 4, the panel member 5, The first display board 6 and the second display board 7 are accommodated.
  • a decorative panel and a transparent cover are arranged on the front surface of the panel member 5, but these are not shown.
  • the circuit board 2 is based on a hard insulating member made of, for example, a glass epoxy material or paper phenol, and a circuit pattern (not shown) is printed on the circuit board 2.
  • This circuit board includes various indicators not shown, light-emitting diodes L that illuminate pointers 8 of auxiliary instruments to be described later and indicator parts to be described later, a plurality of drive bodies M according to each application, and an illumination unit that will be described in detail later. 4.
  • a pedestal member 9 and the like which will be described later are mounted and fixed.
  • a stepping motor having a pointer shaft S is applied to the drive main body M, a main body is mounted on the back side of the circuit board 2, and the pointer shaft S protrudes forward (penetrates) through the circuit board 2.
  • four drive bodies M are used according to the number of meters (pointers 8).
  • the support member 3 is made of, for example, milky white synthetic resin, and is disposed on the front surface of the circuit board 2, and includes a peripheral wall 31 along the outer shape of the circuit board 2, a first support portion 32 that supports the panel member 5 from behind, A second support 33 for supporting the first display panel 6 from behind, a first notch 34 corresponding to the illumination unit 4, and a second notch 35 facing an emission surface (to be described later) of the illumination unit 4;
  • a reflection plate portion (reflection member) 36 that reflects the light taken in through the second cutout portion 35 to the first display plate 6 side is provided.
  • the second support portion 33 is formed in a cylindrical shape along the outer shape of the first display panel 6, and a part thereof is formed so as to cross the front surface of the lighting unit 4.
  • the reflection plate portion 36 is formed as an inclined surface that approaches the first display plate 6 as the distance from the illumination unit 4 increases.
  • the illumination unit 4 includes a back frame (base member) 41, a first intermediate frame 42, a liquid crystal light guide 43, a dial light guide 44, 2 intermediate frames 45, a liquid crystal panel 46, and a front frame 47.
  • the back frame 41 is formed by forming a bottom plate portion 411 and side wall portions 412 and 413 surrounding the periphery of the bottom plate portion 411 by, for example, performing a bending process after pressing a metal plate.
  • the chassis member As the chassis member, the first intermediate frame 42, the liquid crystal light guide 43, the display panel light guide 44, the second intermediate frame 45, the liquid crystal panel 46, and the front frame 47 are supported.
  • it also functions as a heat radiating member that radiates heat from a liquid crystal light source and a display panel light source, which will be described later, and a shield member that blocks various noises, static electricity, and the like.
  • a wide portion corresponding to the display panel light guide 44 is formed on the bottom wall portion 411.
  • a side wall portion 413 corresponding to a light receiving surface described later of each of the light guides 43 and 44 is provided as a mounting portion for mounting the light source substrate 48, and is bent according to the position of the light receiving surface. Is formed.
  • the light source substrate 48 is formed of, for example, an FPC (flexible printed circuit) that is elongated along the side wall portion 413, and includes a first substrate portion 481 facing the light receiving surface of the liquid crystal light guide 43, and a display plate guide. A second substrate portion 482 facing the light receiving surface of the light body 44 is continuously provided.
  • FPC flexible printed circuit
  • a plurality of (4) liquid crystal light sources LP are mounted on the first substrate portion 481 at regular intervals along the longitudinal direction, and a plurality of display panel light sources LD are also displayed on the second substrate portion 482 (displays). 4 in total according to the number of light guides 44 for the plate), and are mounted at intervals along the longitudinal direction, and the light emission axes of the light sources LP and LD are positioned on the side end surfaces of the light guides 43 and 44.
  • the light guides 43 and 44 are directed to the respective light receiving surfaces so that the light of the light sources LP and LD is incident on the edge light system from the respective light receiving surfaces located on the side end surfaces, and surface emission is performed. It has become.
  • Both the liquid crystal light source LP and the display panel light source LD are made of light emitting diodes.
  • the first intermediate frame 42 is made of, for example, white synthetic resin, and includes a storage portion 421 that accommodates the liquid crystal light guide 43 and a pair of light guide support portions 422 that support the display panel light guide 44 from behind.
  • a partition wall 423 that partitions the light guides 43 and 44 is formed between the storage unit 421 and the light guide supporter 422, and the light guides 43 are formed on the partition wall 423.
  • 44 are formed with a plurality of cutout portions 424 for passing through connecting portions described later.
  • the liquid crystal light guide 43 is formed of a transparent synthetic resin as a rectangular plate whose front thickness is reduced as the distance from the liquid crystal light source LP increases, and a liquid crystal light guide 43 is disposed on the side end surface facing the liquid crystal light source LP.
  • a light receiving surface 431 that receives light from the light source LP is formed, and a light emitting surface 432 that emits light from the light receiving surface 431 toward the liquid crystal panel 46 is formed on the front surface facing the liquid crystal panel 46.
  • the liquid crystal light guide 43 has a square shape when viewed from the front because the liquid crystal light guide 43 corresponds to the shape of the liquid crystal panel 46.
  • the light guide for display panel 44 is formed of translucent synthetic resin into a rectangular parallelepiped (bar-shaped body) having a rectangular cross section extending along the long side of the light guide for liquid crystal 43 having a rectangular front view.
  • Two liquid crystal light guides 43 are provided adjacent to both sides.
  • Each of the display panel light guides 44 is formed continuously (integrally) with the liquid crystal light guide 43 through the connecting portion 49, and is formed on the side end face facing the display panel light source LD.
  • a light receiving surface 441 for receiving the light an emission surface 442 for emitting the light introduced from the light receiving surface 441 to the side opposite to the liquid crystal light guide 43 side, and a light introduced from the light receiving surface 441 on the emission surface 442.
  • An exit surface 443 that emits light in a specific direction slightly different from the exit direction, and a substantially saw-tooth shape that faces the exit surface 442 in a direction adjacent to the liquid crystal light guide 43 and reflects light from the light receiving surface 441 to the exit surface 442 side.
  • the reflection portion 444 and the reflection groove 445 that reflects the light from the light receiving surface 441 toward the emission surface 443 are formed.
  • the second intermediate frame 45 is made of, for example, white synthetic resin.
  • the storage unit 451 that stores the liquid crystal light guide 43 together with the storage unit 421 of the first intermediate frame 42 and the display plate light guide 44 are arranged on the front surface.
  • a pair of cover portions 452 covering from the side and a holding portion 453 for holding the liquid crystal panel 46 from the back are formed.
  • the cover portion 452 is formed with a light transmitting hole 454 for transmitting light from the light guide 44 for the display plate toward an overlapping portion described later.
  • the liquid crystal panel 46 is composed of, for example, a TFT (thin film transistor) type liquid crystal panel, and displays various vehicle information, images, and the like.
  • TFT thin film transistor
  • the front frame 47 is formed by forming a bottom plate portion (front plate portion) 471 and a side wall portion 472 surrounding the bottom plate portion 411 by performing a bending process after pressing a metal plate, for example.
  • the bottom plate portion 471 has a window portion 47 through which the liquid crystal panel 46 can be seen.
  • the frame 47 includes a first intermediate frame 42 in front of the rear frame 41, light guides 43 and 44 in front of the first intermediate frame 42, and a second intermediate frame 45 in front of each 43 and 44.
  • the liquid crystal panel 46 and the liquid crystal panel 46 are sequentially assembled in a stacked state by sequentially assembling the liquid crystal panel 46 in front of the second intermediate frame 45 and the front frame 47 in front of the liquid crystal panel 46.
  • Support By combining the light source substrate 48 that constitutes an illumination unit 4 formed by integrally.
  • the rear frame 41, the first intermediate frame 42, the second intermediate frame 45, and the front frame 47 are composed of the liquid crystal panel 46, the display panel light guide 44, and the liquid crystal light guide 43.
  • the illumination unit 4 that is a predetermined member that couples the light source substrate 48 and is integrated through the predetermined member in this manner is in an assembled state, and the emission surfaces 442 and 443 of the light guide 44 for the display plate. Is exposed from between the light guide support part 422 and the cover part 452.
  • the light sources LP and LD sides are located below, the emission surfaces 442 and 443 are exposed in the left-right direction, the liquid crystal panel 46 faces forward, and the back frame 41 is Screwed to the center of the circuit board 2 so as to face the back direction.
  • the up / down / left / right direction and the front / rear direction correspond to the directions when the vehicle is viewed from the front in the actual use state.
  • the illumination unit 4 When the support member 3 is assembled on the circuit board 2, the illumination unit 4 has the display surface of the liquid crystal panel 46 facing the first cutout portion 34, and the emission surfaces 442 and 443 on the second cutout portion 35. Come on.
  • the panel member 5 is formed by performing screen printing or the like on a light-transmitting synthetic resin plate having a shape corresponding to the outer shape of the support member 3.
  • the overall background color is black.
  • the second support portion 33 of the support member 3 corresponding to the first display plate 6 is inserted into the five portions of the panel member corresponding to the first display plate 6 so as to protrude forward from the panel member 5.
  • Two opening holes 51 are formed.
  • the first display board 6 is formed by performing screen printing or the like on a disc-shaped translucent synthetic resin plate, and two first display boards 6 are provided corresponding to the opening holes 51 of the panel member 5. These first display boards 6 have, for example, a black background color as a whole.
  • the first display board 6 constituting the main instrument comprising the speedometer SP corresponding to the second pointer 8 from the left in FIG.
  • a translucent indicator portion (not shown) made up of numerals for speedometers is formed, and a first instrument constituting a main meter comprising an engine tachometer TA corresponding to the second pointer 8 from the right in FIG.
  • the display board 6 is formed with a translucent indicator portion (not shown) made up of numbers for an engine tachometer.
  • an annular translucent portion (not shown) is formed on the outer peripheral portion of the first display plate 6, and light is transmitted to the second display plate 7 through the annular translucent portion.
  • the second display board 7 is formed by drawing a translucent synthetic resin plate on which a translucent indicator portion made of a scale for a speedometer is printed in a background having a predetermined color, thereby producing a radial cross section.
  • the shape is formed as an annular member having a mountain shape, and is arranged so as to cover the outer wall side portion of the second support portion 33 of the support member 3 and the outer peripheral edge of the first display panel 6.
  • the indicator portion of the second display board 7 is illuminated via the annular light transmitting portion of the first display board 6. 1 to 3, the second display board 7 is provided only for the speedometer SP, and the second display board 7 provided on the engine tachometer TA side is omitted.
  • Each pointer 8 is composed of an indicator portion 81 made of, for example, a light-transmitting synthetic resin, and a cap 82 that covers the rotation center portion of the indicator portion 81, and is connected to the pointer shaft S of the drive main body M. 1 is rotated around the axis according to the measurement amount.
  • the pointers 8 constituting the speedometer SP and the engine tachometer TA are different from the pointers 8 for the other auxiliary instruments, and as shown in FIG. And a pointer board 83 on which the light source LN is mounted.
  • the pointer light source LN is made of, for example, a light emitting diode, and is mounted on the pointer substrate 83 so that the light emitting portion faces the pointing portion 81 side.
  • the pointer substrate 83 has a connection pattern (not shown) connected to the pointer light source LN and a coil pattern (electric power generation) that generates electric power in accordance with electromagnetic induction action (electromagnetic field of the magnetic field generating means) with an electromagnetic field generating means described later.
  • a copper foil circuit pattern is formed.
  • the power generation means may be a coil bobbin wound with a conducting wire.
  • the coil pattern 84 is spirally formed on the back surface of the pointer substrate 83 (on the electromagnetic field generating means side) so as to face the electromagnetic field generating means, and is connected to the pointer light source LN through a through hole. .
  • the pedestal member 9 is made of a synthetic resin having a light-shielding property or a light-transmitting property, and as shown in detail in FIG. 7, a support portion 91 parallel to the rotation plane of the pointer 8 and extends from the support portion 91 to the circuit board 2 side. And a side wall portion 92 which is a leg portion.
  • the support portion 91 is formed in a circular shape when viewed from the front facing the rotation center of the pointer 8, the surface facing the pointer 8 extends in parallel with the rotation plane of the pointer 8, and further, the pointer 8 and the pointer shaft S are at the center.
  • 93 is formed with a hole that enables connection with the.
  • the supporting portion 91 supports the electromagnetic field generating means EM from behind in order to bring the electromagnetic field generating means EM that generates an electromagnetic field by supplying power closer to the pointer 8 than the substrate surface of the circuit board 2.
  • the electromagnetic field generating means EM is composed of a coil-like (spiral) wiring pattern printed on a film-like substrate made of, for example, FPC (flexible printed circuit) (not shown). The center of the coiled wiring pattern is close to the pointer shaft S position.
  • the electromagnetic field generating means EM may be a coil bobbin wound with a conducting wire.
  • the pointer 8 When the electromagnetic field generated by the electromagnetic field generating means EM generates electric power in the coil pattern 84 and causes the pointer light source LN to emit light by electromagnetic induction, the pointer 8 is provided with electric power generating means described later.
  • the power generation means receives the electromagnetic field of the electromagnetic field generation means EM and generates power to be supplied to a pointer light source which will be described later.
  • the end of the film-like substrate is routed to the substrate surface of the circuit board 2 through the side wall 92 and connected to the circuit pattern through the connector C mounted on the circuit board 2.
  • the side wall portion 92 is formed in a substantially cylindrical shape, but a light transmitting portion 94 for passing light from the illumination unit 4 side to the side opposite to the illumination unit 4 side is formed at an appropriate position. .
  • the circuit board 2 is housed and fixed from the opening side of the back cover 1.
  • the illumination unit 4, the base member 9, and the electromagnetic field generation means EM are mounted on the circuit board 2 in advance.
  • each pointer 8 is press-fitted into the pointer shaft S from the panel member 5 and the first display plate 6 to complete.
  • the display panel light source LD incorporated in the illumination unit 4 emits light
  • the light enters the display panel light guide 44 through the light receiving surface 441.
  • the light incident on the display panel light guide 44 is internally guided, reflected through the reflection portion 444 and the reflection groove 445, and emitted from the emission surfaces 442 and 443.
  • the emitted light is irradiated through the second cutout portion 35 of the support member 3 into the space formed between the reflection plate portion 36 and the first display plate 6, and the reflection plate portion 36 and the first display plate.
  • the indicator portion of the first display plate 6 is illuminated from behind
  • the second display plate 7 of the second display plate 7 is connected via the annular light-transmitting portion of the first display plate 6.
  • the indicator part is illuminated from behind.
  • the pedestal member 9 is disposed around the pointer shaft S.
  • the side wall portion 92 of the pedestal member 9 allows light from the illumination unit 4 side to pass through the side opposite to the illumination unit 4 side. Since the translucent portion 94 is formed, the base member 9 is configured not to block the progress of light. Further, the emission direction of the light emitted from the emission surface 443 is adjusted to a specific direction slightly different from the emission direction of the emission surface 442, and the illumination unit 4 (the emission surface 442) with the pedestal member 9 interposed therebetween. Consideration is made to eliminate the lack of brightness on the opposite side.
  • the liquid crystal panel 46 is arranged so that a part of the indicator portion of the first display panel 6 overlaps a part of the liquid crystal panel 46 when viewed from the viewing direction.
  • an overlapping portion B is formed on the first display plate 6, and the indicator portion region of the display plate 6 located in the overlapping portion B overlaps the liquid crystal panel 46.
  • the first display plate 6 is supported by the second support portion 33 (of the support member 3) (part of the support member 3), although it is difficult for light to reach due to being blocked by the panel 46.
  • a space K is formed between the overlapping portion B and the liquid crystal panel 46 region, and the light of the display panel light guide 44 is introduced into the space K through the light transmitting hole 454 of the illumination unit 4.
  • the indicator light region in the overlapping portion B is illuminated with the introduced light. .
  • the overlapping portion B is illuminated with the light of the display panel light guide 44 introduced into the space K.
  • the light transmitting hole 454 is provided on the light transmitting hole 454.
  • a reflective member (not shown) that reflects the passed light to the overlapping portion B may be provided.
  • the display panel light guide 44 may be extended to the overlapping portion B, and the overlapping portion B may be illuminated by this extending portion (not shown).
  • An electromagnetic field is generated by supplying electric power to the electromagnetic field generating means EM, and electric power is generated in the coil pattern 84 due to electromagnetic induction action by the electromagnetic field.
  • Incident light 81 emits light.
  • a display panel light source LD that illuminates the first display panel 6, a display panel light guide 44 that guides the light from the display panel light source LD to the first display panel 6, and a liquid crystal panel 46 that displays various types of information.
  • a liquid crystal light source LP that illuminates the liquid crystal panel 46, a liquid crystal light guide 43 that guides the light of the liquid crystal light source LP to the liquid crystal panel 46, and the first display panel 6 and the liquid crystal panel 46.
  • the circuit board 2 to which the main body M and the liquid crystal panel 46 are electrically connected is provided, and the light from the light source LD for the display plate and the light source LP for the liquid crystal LP are added to the light guide 44 for the display plate and the light guide 43 for the liquid crystal, respectively.
  • 43 is a measuring device in which a light source LD for display plate and a light source LP for liquid crystal LP are arranged opposite to each light receiving surface 413, 441 formed on each side end surface of the 43.
  • a light source substrate 48 continuously having a first substrate portion 481 and a second substrate portion 482 facing the light receiving surface 441 of the light guide for display panel is provided, and the first and second substrate portions 481 and 482 are provided on the first and second substrate portions 481 and 482, respectively.
  • the present embodiment has a metal back frame (base member) 41 that supports at least the liquid crystal panel 46 and the liquid crystal light guide 43, and a light source substrate 48 is attached to the back frame 41.
  • a dedicated component for attaching 48 is not necessary, and the heat radiation member can be made common by performing heat radiation of the light source LD for the display plate and the light source LP for the liquid crystal by the rear frame 41, so that further cost reduction can be achieved.
  • the display panel light guide 44 and the liquid crystal light guide 43 are integrated via the connecting portion 49, thereby reducing the number of parts and further reducing the cost.
  • the liquid crystal panel 46, the display panel light guide body 44, the liquid crystal light guide body 43, and the light source substrate 48 can be unitized by being coupled through a predetermined member including the frame 45 and the front frame 47. This facilitates assembly and further cost reduction.
  • the overlapping portion B is formed by arranging the first display panel 6 so that a part of the indicator portion overlaps the liquid crystal panel 46 when viewed from the viewing direction.
  • the indicator portion in the overlapping portion B can be illuminated without providing a dedicated illumination means, and the cost can be reduced.
  • the shape of the light guide 44 for the display panel is different from that of the first embodiment.
  • the display panel light guide 44 is formed in, for example, a D-shape, and the light source substrate 48 and the side wall portion 413 are arranged in the left-right direction in the drawing so as to correspond to the D-shaped display panel light guide 44. It is formed to extend.
  • the shape of the display panel light guide 44 is arbitrary.
  • two display panel light guides 44 are provided, but the number of display panel light guides 44 is arbitrary.
  • the light source substrate 48 is mounted with the display plate light source LD and the liquid crystal light source LP, respectively, but illuminates the pointer 8 and other light emitting display devices (for example, an alarm / notification indicator).
  • a light source may be implemented.
  • an extension for mounting a light source for illuminating the pointer 8 or another light emitting display device (for example, an alarm / notification indicator) may be provided on the light source substrate 48.
  • the present invention may be applied not only to vehicles such as automobiles and motorcycles, but also to instrument devices mounted on, for example, various ships, agricultural machines, and construction machines.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Measuring Devices (AREA)
  • Instrument Panels (AREA)

Abstract

L'invention concerne un dispositif indicateur à monter sur un véhicule ou une motocyclette, etc., qui permet une diminution des coûts. Ce dispositif indicateur comprend un corps d'actionnement (M), une aiguille indicatrice (8) connectée au corps d'actionnement (M), une première plaque d'affichage (panneau d'affichage) (6) ayant une unité indicatrice, une source de lumière de plaque d'affichage (LD), un guide de lumière de plaque d'affichage (44), un panneau à cristaux liquides (46), une source de lumière de panneau à cristaux liquides (LP), un guide de lumière de cristaux liquides (43) et un substrat de circuit (2). Le dispositif indicateur est disposé de sorte que la lumière venant des sources de lumière (LD, LP) rencontre les guides de lumière (44, 43) par le biais du système d'éclairage de bord, et le dispositif indicateur comporte un substrat de source de lumière (48) comportant séquentiellement une première unité de substrat (481) et une seconde unité de substrat (482) montées avec les sources de lumière (LD) et (LP), respectivement.
PCT/JP2011/050641 2010-01-29 2011-01-17 Dispositif indicateur WO2011093159A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010018439A JP2011158285A (ja) 2010-01-29 2010-01-29 計器装置
JP2010-018439 2010-01-29

Publications (1)

Publication Number Publication Date
WO2011093159A1 true WO2011093159A1 (fr) 2011-08-04

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JP (1) JP2011158285A (fr)
WO (1) WO2011093159A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120222612A1 (en) * 2011-03-01 2012-09-06 Mikiya Amano Assembly structure of display device and assembly method of the display device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150158422A1 (en) * 2013-12-06 2015-06-11 Delphi Technologies, Inc. Light-pipe cut from sheet stock for instrument panel

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0545649A (ja) * 1991-08-21 1993-02-26 Mitsubishi Electric Corp 液晶表示器の照明構造及び組立構造
JP2001091309A (ja) * 1999-09-28 2001-04-06 Toyoda Gosei Co Ltd 車両用メータの照明装置
JP2004212126A (ja) * 2002-12-27 2004-07-29 Nippon Seiki Co Ltd 照明装置
JP2006194613A (ja) * 2005-01-11 2006-07-27 Calsonic Kansei Corp 車載用計測器
JP2008014931A (ja) * 2006-06-06 2008-01-24 Denso Corp 指針計器
JP2010019726A (ja) * 2008-07-11 2010-01-28 Yazaki Corp 車両用表示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0545649A (ja) * 1991-08-21 1993-02-26 Mitsubishi Electric Corp 液晶表示器の照明構造及び組立構造
JP2001091309A (ja) * 1999-09-28 2001-04-06 Toyoda Gosei Co Ltd 車両用メータの照明装置
JP2004212126A (ja) * 2002-12-27 2004-07-29 Nippon Seiki Co Ltd 照明装置
JP2006194613A (ja) * 2005-01-11 2006-07-27 Calsonic Kansei Corp 車載用計測器
JP2008014931A (ja) * 2006-06-06 2008-01-24 Denso Corp 指針計器
JP2010019726A (ja) * 2008-07-11 2010-01-28 Yazaki Corp 車両用表示装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120222612A1 (en) * 2011-03-01 2012-09-06 Mikiya Amano Assembly structure of display device and assembly method of the display device
US8919276B2 (en) * 2011-03-01 2014-12-30 Yazaki Corporation Assembly structure of display device and assembly method of the display device

Also Published As

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