WO2020171044A1 - Dispositif d'affichage de véhicule - Google Patents

Dispositif d'affichage de véhicule Download PDF

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Publication number
WO2020171044A1
WO2020171044A1 PCT/JP2020/006186 JP2020006186W WO2020171044A1 WO 2020171044 A1 WO2020171044 A1 WO 2020171044A1 JP 2020006186 W JP2020006186 W JP 2020006186W WO 2020171044 A1 WO2020171044 A1 WO 2020171044A1
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WO
WIPO (PCT)
Prior art keywords
viewer
infrared
display
light
unit
Prior art date
Application number
PCT/JP2020/006186
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English (en)
Japanese (ja)
Inventor
彰大 後藤
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 WO2020171044A1 publication Critical patent/WO2020171044A1/fr

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/04—Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
    • 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
    • G01D11/24—Housings ; Casings for instruments
    • 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

Definitions

  • the present invention relates to a vehicle display device mounted on a vehicle such as an automobile or a motorcycle.
  • Patent Document 1 Conventionally, as a vehicle display device of this type, one described in Patent Document 1 below is known.
  • the vehicle display device described in Patent Document 1 is a vehicle instrument mounted in front of a driver's seat of a vehicle, and is a liquid crystal display panel (display means) for displaying various vehicle information such as the traveling speed of the vehicle. And a resin housing that constitutes an outer case of the display device.
  • an object of the present invention is to provide a vehicular display device capable of detecting the state of a viewer in order to address the above-mentioned problems.
  • the present invention is capable of capturing an image of a display unit that displays vehicle information and a state of a viewer who visually recognizes the display unit, and is provided on the side opposite to the viewer side of the display unit that is opposite to the viewer side.
  • Image pickup means an infrared irradiating section for irradiating infrared light toward the viewer, a light source provided on the anti-viewer side of the display means so as to supply visible light to the display means, and the image pickup And a circuit board on which the light source is arranged.
  • the present invention provides a display means for displaying vehicle information, an image capturing means capable of capturing an image of a state of a viewer visually recognizing the display means, and the viewer so as to irradiate the viewer with infrared light.
  • An infrared irradiation unit provided on the side opposite to the viewer side of the display means, and a light source provided on the side opposite the viewer side of the display means so as to supply visible light to the display means; It is characterized by comprising an infrared irradiation unit and a circuit board on which the light source is arranged.
  • the present invention is capable of capturing an image of a display means for displaying vehicle information and a state of a viewer who visually recognizes the display means, and is provided on the side opposite to the viewer side of the display means which is opposite to the viewer side.
  • An image pickup unit provided, an infrared irradiation unit provided on the counter viewer side of the display unit so as to irradiate the viewer with infrared light, and the display for supplying visible light to the display unit. It is characterized by comprising a light source provided on the side opposite to the viewer of the means, a circuit board on which the image pickup means, the infrared irradiating section and the light source are arranged.
  • a case member is provided between the circuit board and the display means, and the case member includes a first hollow portion corresponding to the image pickup means and a second cavity portion corresponding to the infrared irradiation portion. And a barrier section for partitioning the first cavity section and the second cavity section from each other.
  • the protective member located on the viewer side of the display means is provided with a non-overlapping portion that does not overlap with the display means, and the light source is located on the viewer side of the circuit board.
  • the infrared irradiating section is disposed on the surface section, and the infrared irradiating section is disposed on the other surface section of the circuit board located on the side opposite to the viewer, and the infrared light emitted from the infrared irradiating section uses an optical member. It is characterized in that it is configured to be guided to the non-polymerized portion.
  • a non-overlapping portion which does not overlap with the display means is provided on the protective member located on the viewer side of the display means, and the light source is provided on one surface portion on the display means side and the display means side.
  • a vehicle display device that can achieve a desired purpose and can detect a state of a viewer.
  • FIG. 1 is a front view of a vehicle display device according to an embodiment of the present invention.
  • FIG. 2 is a sectional view taken along line AA of FIG.
  • FIG. 2 is a sectional view taken along line BB in FIG. 1.
  • CC sectional drawing of FIG. FIG. 3 is a plan view schematically showing the positional relationship among the camera module, the optical member, and the case member according to the same embodiment.
  • the block diagram which shows the electric constitution of the display device for vehicles by the same embodiment.
  • Sectional drawing of the display apparatus for vehicles by the modification 2 of the embodiment The block diagram which shows the electric constitution of the display device for vehicles by the same embodiment.
  • FIG. 12 is a sectional view taken along line FF of FIG. 11.
  • FIG. 8 is a vertical cross-sectional view of a vehicle display device according to a modified example 5 of the same embodiment.
  • FIG. 14 is an enlarged sectional view of an essential part showing an enlarged part G in FIG. 13. Sectional drawing of the vehicle display apparatus by the modification 6 of the embodiment.
  • the vehicle display device of the present invention is applied to a vehicle instrument mounted in front of a driver's seat of an automobile as an example with reference to FIGS. 1 to 6.
  • the viewer side who looks straight (visually) to the vehicle instrument is the front side (front side), and the anti-viewer side opposite to the viewer side is the rear side (rear side). ..
  • a vehicle instrument D as a vehicle display device includes a display panel (display means) 10 for displaying various vehicle information (predetermined information) such as vehicle speed information, and this display panel.
  • a well-known liquid crystal display panel in which a front-side polarizing plate and a rear-side polarizing plate are attached to the front and back surfaces of a liquid crystal cell in which liquid crystal is sealed between a pair of insulating substrates (glass substrates) may be applied. it can.
  • the display panel 10 has a flat display surface 11 on which the viewer E can directly look, and the vehicle information is displayed on the display surface 11.
  • FIG. 1 shows an example in which a vehicle speed display unit 12 indicating the traveling speed of the vehicle is displayed as visual information on the display surface 11 as an example of the vehicle information.
  • the circuit board 20 is, for example, a hard wiring board in which a wiring pattern is formed on a glass epoxy base material, and controls display of the display panel 10 and lighting of the light source 30, and also controls the camera module 50 (imaging means and infrared rays described later).
  • the control unit 21 as a microcomputer for controlling the operation of the irradiation unit), the light source 30, the camera module 50 (the imaging unit and the infrared irradiation unit), and various circuit components such as resistors and capacitors are arranged in the wiring pattern. Conductive connection.
  • the circuit board 20 is mounted (disposed) with the light source 30, the image pickup means, and the infrared irradiation section (the control section 21).
  • the light source 30, the imaging unit, and the infrared irradiation unit are mounted (disposed) on the front side of the circuit board 20, and the control unit 21 is mounted (disposed) on the back side of the circuit board 20.
  • the circuit board 20 is electrically connected to the display panel 10 using a flexible wiring board (not shown).
  • the light source 30 a plurality of chip type light emitting diodes that emit light of an appropriate color can be applied, and the display panel emits (provides) light (visible light) toward the optical member 60 (display panel 10). It is provided on the back side of 10.
  • the protective member 40 is a substantially flat plate-shaped protective panel member formed of a translucent synthetic resin material and provided so as to cover the front side of the display panel 10.
  • a light shielding portion 41 is formed on the peripheral edge of the rear surface of the protective member 40.
  • the light shielding part 41 is formed of, for example, a black print layer.
  • the protective member 40 may be bonded to the display panel 10 with a translucent adhesive, and the outermost surface of the protective member 40 on the front side is not a flat flat surface but a convex surface toward the front side. It may be a curved shape (curved shape).
  • the camera module 50 images the face of the viewer E seated in the driver's seat and detects the state (behavior) of the viewer E from the motion of the face of the viewer E and the like. The corresponding position is arranged behind the display panel 10.
  • the camera module 50 is arranged on the back side of the display panel 10 (the front and back surfaces have the polarizing plates on the front and back sides), and is invisible from the front side. Therefore, the presence of the camera module 50 is less noticeable, and it is possible to improve the commercial property (design property) of the vehicle instrument D.
  • the camera module 50 also includes an imaging unit 51 capable of imaging the state of the viewer E who visually recognizes the display panel 10, and an infrared irradiation unit 52 which irradiates the viewer E with infrared light (near infrared light). And the image pickup means 51 and the infrared irradiation section 52 are provided so as to be integrated.
  • the image pickup means 51 is a camera having sensitivity in the near infrared region, and is provided at a position corresponding to the upper center of the display panel 10 and behind the display panel 10.
  • the infrared irradiation unit 52 is provided behind the display panel 10 so as to irradiate the viewer E with infrared light.
  • the infrared irradiation unit 52 can apply a pair of infrared light sources (infrared LEDs) arranged on both sides of the image pickup unit 51 so as to sandwich the image pickup unit 51 in the plate surface direction of the display panel 10.
  • the light source 30 and the imaging unit 51 are mounted (disposed) on the front side of the circuit board 20.
  • the optical member 60 is arranged behind the display panel 10 so as to guide the illumination light (visible light) to the display panel 10.
  • a plurality of optical members 60 are provided, and in the case of this example, the optical member 60 is composed of the prism sheet 61 and the light diffusion sheet 62.
  • the prism sheet 61 and the light diffusing sheet 62 are stacked in this order from the back side to the front side.
  • the prism sheet 61 plays a role of condensing light in one direction to improve brightness, and is an optical sheet in which a plurality of prisms having a condensing function are arranged.
  • the light emitted from the light source 30 is aligned by the prism sheet 61 in a predetermined direction (a direction substantially orthogonal to the sheet surface of the prism sheet 61), efficient light irradiation is performed, and as a result, brightness is improved.
  • the prism sheet 61 which is a component of the optical member 60, is provided with a missing portion 61a at a position corresponding to the image pickup means 51 and the infrared irradiation unit 52 (that is, the camera module 50) as shown in FIG. ..
  • the notch portion 61a is configured as a notch portion obtained by notching the portion corresponding to the center of the upper side of the display panel 10 into a substantially U shape.
  • the light diffusion sheet 62 plays a role of diffusing and homogenizing the light (visible light) emitted from the prism sheet 61.
  • the light diffusing sheet 62 for example, an optical film in which light diffusing particles are dispersed in a light transmissive resin film can be used.
  • the outer shape of the light diffusion sheet 62 is substantially the same as the outer shape of the prism sheet 61. That is, this means that in the light diffusion sheet 62, which is a component of the optical member 60, the light diffusion sheet 62 is communicated with the portion corresponding to the imaging unit 51 and the infrared irradiation unit 52 (that is, the camera module 50) (the communication with the missing portion 61a). ) It means that the missing portion 62a is provided.
  • the cutout portion 62a is configured as a cutout portion obtained by cutting out a portion corresponding to the center of the upper side of the display panel 10 in a substantially U shape.
  • the case member 70 is a resin case formed of a synthetic resin material, and is provided between the display panel 10 and the circuit board 20.
  • the case member 70 is a main body portion 71 that is a standing wall portion that is formed in a substantially U shape so as to surround the camera module 50, and a first cavity that is a void provided so as to correspond to the image pickup means 51.
  • the part 72, the second cavity part 73 which is a space provided so as to correspond to the infrared irradiation part 52, and the main body part 71 so as to partition the first cavity part 72 and the second cavity part 73. It is provided with a barrier section 74 which is a partition wall provided integrally, and is fixedly held to the circuit board 20 (or the case 80) by using an appropriate fixing means.
  • the barrier section 74 functions as a light-shielding wall that blocks the infrared light emitted from the infrared irradiation section 52 from being reflected on the rear surface of the display panel 10 to the rear side and invading into the first cavity 72 side.
  • the housing 80 is a resin instrument housing that constitutes an outer case of the vehicle instrument D, and has a substantially box shape with an opening on the display panel 10 side.
  • the housing 80 includes a bottom wall portion 81 that covers the back side of the circuit board 20 and a peripheral wall portion 82 that surrounds the side of the display panel 10.
  • the instrument panel 90 is formed of, for example, a black (light-shielding) synthetic resin material, and mainly covers the outer edge portion of the protection member 40.
  • the instrument panel 90 has an opening wall 91 for making the vehicle information visible from the viewer E side.
  • the vehicle instrument D is configured by the above parts.
  • the infrared light emitted from the infrared emitting unit 52 is emitted toward the front side through the display panel 10 (that is, passing through the display panel 10 and the protection member 40), and the viewer E To reach the face.
  • the infrared light after irradiating the viewer E (face of the viewer E) is reflected in the opposite direction (back side) and passes through the display panel 10 (that is, passes through the protection member 40 and the display panel 10) to be imaged. It is configured such that it can enter the means 51.
  • the imaging unit 51 can capture the face of the viewer E illuminated by infrared light, and acquires the reflected light reflected in the opposite direction as an image.
  • the vehicle instrument D includes a control unit 21, a display panel 10, a light source 30, an image pickup unit 51, and an infrared irradiation unit 52.
  • the control unit 21 includes a ROM (Read Only Memory) in which an operation program of the control unit 21 is stored, a CPU (Central Processing Unit) that executes an operation process of the control unit 21 by executing the operation program, a work such as a CPU. It has a RAM (Random Access Memory) used as an area.
  • ROM Read Only Memory
  • CPU Central Processing Unit
  • RAM Random Access Memory
  • the control unit 21 executes processing for displaying the vehicle speed display unit 12 and the like on the display surface 11 based on information from an in-vehicle ECU (Electronic Control Unit) (not shown).
  • the control unit 21 executes a process of turning on the light source 30 based on, for example, an ON operation of a headlight switch (not shown), whereby the vehicle speed display unit 12 is backlit.
  • the control unit 21 also determines the state of the viewer E based on the image captured by the image capturing unit 51. Specifically, the control unit 21 determines whether or not the viewer E is drowsy based on the image captured by the image capturing unit 51, and is in a state where the viewer E is performing a look-aside operation. A process of determining the state of the viewer E such as whether or not is executed.
  • the speaker (not shown) mounted on the vehicle instrument D causes a warning sound (not shown) for calling attention to the viewer E.
  • a process for operating the speaker is performed so that a "sound effect" is emitted.
  • a warning message may be displayed on the display surface 11 of the display panel 10 for calling attention under the control of the control unit 21.
  • the state of the viewer E who visually recognizes the display panel 10 can be imaged, and the imaging unit 51 arranged on the rear side of the display panel 10 and the infrared light are transmitted to the viewer E.
  • An infrared irradiating section 52 provided on the back side of the display panel 10 so as to irradiate toward the display panel, and a light source 30 provided on the back side of the display panel 10 for supplying the illumination light (visible light) to the display panel 10.
  • the circuit board 20 is provided with the image pickup means 51, the infrared irradiation section 52, and the light source 30.
  • the camera module 50 can be mounted on the circuit board 20 for mounting the light source 30, and it is not necessary to separately provide a dedicated module board for mounting the camera module 50. There is also an advantage that the number of constituent parts can be reduced and an increase in cost can be suppressed.
  • the camera module 50 in which the image pickup unit 51 and the infrared irradiation unit 52 are integrated is adopted, but the image pickup unit 51 and the infrared irradiation unit 52 are integrated.
  • the infrared irradiator 52 may be provided at any position as long as it can irradiate the viewer E with infrared light.
  • translucent parts 92 are provided at appropriate portions (for example, the opening wall 91) of the instrument panel 90, and the translucent parts are provided.
  • the infrared irradiation unit 52 may be arranged in the internal space S of the instrument panel 90 so as to correspond to the light transmitting unit 92 so that infrared light is emitted toward the viewer E through 92.
  • the image pickup means 51 that can image the state of the viewer E and is provided on the back side of the display panel 10, and the infrared irradiation unit 52 that irradiates the viewer E with infrared light.
  • a light source 30 provided on the rear side of the display panel 10 so as to supply the illumination light (visible light) to the display panel 10, and a circuit board 20 on which the image pickup means 51 and the light source 30 are mounted (disposed).
  • the optical member 60 (prism sheet) is used.
  • 61 and the light diffusion sheet 62) are provided with missing portions 61a and 62a (or through-hole portions 61b and 62b which will be described later in detail) at locations corresponding to the image pickup means 51.
  • the barrier portion 74 of the case member 70 can be eliminated, and the image pickup means 51 is arranged inside the main body portion 71.
  • Modification 2 Further, as a further application example of Modification 1, the imaging unit 51 and the infrared irradiation unit 52 may not be integrated, and the imaging unit 51 is in a state of the viewer E who visually recognizes the display panel 10. It can be provided at any position as long as it can capture an image.
  • the image pickup means 51 may be installed on the upper portion 93 of the instrument panel 90 in front of the driver's seat of the vehicle 100.
  • 110 indicates a windshield of the vehicle 100.
  • the image pickup means 51 capable of picking up the state of the viewer E who visually recognizes the display panel 10 and the infrared light are emitted toward the viewer E.
  • the infrared irradiation unit 52 provided on the back side of the display panel 10
  • the light source 30 provided on the back side of the display panel 10 so as to supply the illumination light (visible light) to the display panel 10
  • the infrared irradiation unit 52 The circuit board 20 on which the light source 30 and the light source 30 are mounted (disposed) is provided, and even when the configuration is adopted, the state of the viewer E can be detected based on the image captured by the image capturing unit 51. Is possible.
  • the infrared irradiation unit is provided in the optical member 60 (prism sheet 61 and light diffusion sheet 62). Missing portions 61a and 62a (or through-hole portions 61b and 62b described in detail later) are provided at locations corresponding to 52. Further, the barrier portion 74 of the case member 70 can be omitted, and the infrared irradiation unit 52 is arranged inside the main body 71.
  • the prism sheet 61 and the light diffusing sheet 62 are provided with the cutouts 61a and 62a formed of cutouts at the upper center thereof.
  • the prism sheet 61 is provided with through holes 61b at positions corresponding to the imaging means 51 and the infrared irradiation section 52, and the light diffusion sheet 62 is provided with the imaging means 51.
  • a through hole portion 62b (which communicates with the through hole portion 61b) may be provided at a location corresponding to the infrared irradiation portion 52.
  • the through-hole portions 61b and 62b are provided as substantially rectangular through-holes that penetrate the front and back sides at the upper center of the prism sheet 61 and the light diffusion sheet 62.
  • FIGS. 11 and 12 show Modification 4 of the present invention.
  • the infrared irradiation unit 52 mounted on the front side of the circuit board 20 is mounted on the rear side of the circuit board 20. That is, when the surface located on the front side of the circuit board 20 is one surface portion P1 and the surface located on the back side of the circuit board 20 (the side opposite to the one surface portion P1) is the other surface portion P2, the light source 30 Is mounted on one surface portion P1 located on the front side of the circuit board 20, and the infrared irradiation unit 52 is mounted on the other surface portion P2 located on the back side of the circuit board 20.
  • the case member 70, the instrument panel 90, and the light shielding portion 41 provided on the protection member 40 adopted in the above-described embodiment are omitted.
  • the protective member 40 located on the front side of the display panel 10 has an outer shape slightly larger (slightly) than the outer shape of the display panel 10, and the vehicle instrument D is viewed from the front side. It has a peripheral edge portion 42 located (extruded) outside the display panel 10 when the display panel 10 is opened.
  • the peripheral portion 42 is configured as a non-overlapping portion that does not overlap the display panel 10 when the vehicle instrument D is viewed from the front side. That is, this means that the protective member 40 is provided with the peripheral edge portion 42 as a non-overlapping portion that does not overlap the display panel 10.
  • the infrared irradiation unit 52 in the fourth modification is located at the center of the upper side of the vehicle instrument D in FIG. 11, and the other infrared irradiation unit 52 is arranged so that the infrared light irradiation direction is toward the peripheral wall portion 82 side of the housing 80. It is mounted on the end of the surface portion P2. That is, the infrared irradiation unit 52 is mounted on the end portion of the other surface portion P2 facing the back side of the circuit board 20 so that the irradiation direction of the infrared light is the horizontal direction (direction along the other surface portion P2). ..
  • the image pickup means 51 and the infrared irradiation unit 52 are not mounted on the one surface portion P1, the missing portions 61a and 62a (or the through hole portions 61b and 62b) should be eliminated. It is possible to mount a plurality of light sources 30 on one surface portion P1 corresponding to all the areas of the display surface 11, and the entire area of the display surface 11 can be used as a visual information area (display surface 11 effective display areas can be secured to the maximum).
  • the infrared light emitted from the infrared irradiation unit 52 is configured to be guided to the peripheral edge 42 by using the light guide member 120 as an optical member.
  • the light guide member 120 is provided at the upper center of the vehicle instrument D in order to guide the infrared light emitted from the infrared irradiation unit 52 to the peripheral portion 42.
  • the light guide member 120 is a substantially columnar light guide body formed of, for example, a translucent synthetic resin material, and is fixed to the peripheral wall portion 82 using, for example, an appropriate fixing means.
  • the light guide member 120 receives the infrared light emitted from the infrared irradiator 52 and the infrared light introduced into the light guide member 120 through the light receiver 121 to the front side (peripheral edge 42 side). It has a reflecting portion 122 for reflecting toward the edge portion and an emitting portion 123 for emitting the infrared light reflected by the reflecting portion 122 toward the peripheral edge portion 42.
  • the light receiving section 121 is provided on the back side of the light guide member 120 so as to face the light emitting surface of the infrared irradiation section 52.
  • the reflecting portion 122 is configured as an inclined reflecting surface located on the right side of the light receiving portion 121 in FIG. 12 so as to face the light receiving portion 121.
  • the emitting portion 123 is provided on the front side of the light guide member 120 so as to face the peripheral portion 42, and is configured as an emitting surface from which the infrared light reflected by the reflecting portion 122 is emitted.
  • the infrared light emitted laterally (rightward in FIG. 12) from the infrared irradiation unit 52 is introduced into the light guide member 120 through the light receiving unit 121, and then reflected.
  • the infrared light reflected by the portion 102 is reflected and guided toward the front side (vertical direction when viewed in FIG. 12) and reaches the peripheral portion 42 located right above the emitting portion 123 via the emitting portion 123.
  • the infrared light reaching the peripheral portion 42 is emitted toward the front side through the protective member 40 and reaches the face of the viewer E.
  • the infrared light after irradiating the viewer E face of the viewer E
  • the state of the viewer E can be detected based on the image captured by the imaging unit 51.
  • the number of the infrared irradiation units 52 may be plural, and for example, the infrared irradiation units 52 may be provided at the upper center and the lower center of the vehicle instrument D in FIG. At this time, a plurality of light guide members 120 may be provided so as to correspond to the installation positions of the individual infrared irradiation units 52.
  • the image pickup means 51 is installed on the upper portion 93 of the instrument panel 90, but the image pickup means 51 may be mounted on the front side of the circuit board 20 in the same manner as in the above embodiment. Good.
  • FIGS. 13 and 14 show Modification 5 of the invention.
  • the configuration of the modified example 4 is used as a basic configuration, and a display unit 130 unitized (modularized) with respect to the basic configuration is applied as a display medium.
  • the display unit 130 includes the display panel 10 used in the embodiment, the light guide 131a, the light source 30 used in the embodiment, the flexible wiring board 131b, and the like.
  • a metal frame member 133 that houses at least the mounted flexible wiring board 131b is provided.
  • the flexible wiring board 131b corresponds to the circuit board described in claim 6 of the claims described later.
  • the light guide 131 a is made of a substantially flat plate-shaped translucent synthetic resin, and is arranged along the back surface of the display panel 10. In other words, the light guide 131a is arranged in the illumination optical path from the light source 30 to the display panel 10.
  • the plurality of light sources 30 are visible light sources that are arranged in a line along one side surface Y located on the right side of the light guide 131a in FIG.
  • the flexible wiring board 131b is provided so as to face the one side surface Y of the light guide 131a, and the infrared irradiation section 52 is mounted on the other surface portion T2 opposite to the one surface portion T1.
  • the light source 30 is not mounted on the circuit board 20 adopted in the above-described embodiment, and instead of the prism sheet 61 and the light diffusion sheet 62 adopted in the above-described embodiment, the light guide 131a, The resin case 132 is used.
  • the metal frame member 133 is press-molded into a substantially frame shape, and houses the display panel 10, the light guide 131a, the light source 30, the resin case 132, and the like inside.
  • An opening 133a formed of a substantially rectangular opening window is provided at a portion of the frame member 133 corresponding to the display surface 11.
  • the side wall portion of the frame member 133 is provided with a penetrating portion 133b having a penetrating hole shape that does not interfere with the arrangement position of the infrared irradiating portion 52. That is, this means that the infrared irradiation unit 52 is mounted on the other surface portion T2 of the flexible wiring board 131b so as to correspond to the penetrating portion 133b provided on the frame member 133.
  • the technique disclosed in the modification 4 described above is adopted, and the infrared light emitted from the infrared irradiation unit 52 is transmitted to the frame member 133 (the side wall portion) and the peripheral wall portion 82. It is configured to be guided to the peripheral edge portion 42 by utilizing the light guide member 120 arranged between the two.
  • the infrared light emitted laterally (rightward when viewed in FIG. 14) from the infrared irradiating section 52 sequentially passes through the light receiving section 121, the reflecting section 122, the emitting section 123, and the peripheral section 42 (protective member 40). It is irradiated toward the front side and reaches the face of the viewer E. Further, the infrared light after irradiating the viewer E (face of the viewer E) can be reflected in the opposite direction (back side) and incident on the image pickup means 51 installed on the upper portion 93 of the instrument panel 90. Has become.
  • the state of the viewer E can be detected based on the image captured by the imaging unit 51.
  • the number of the infrared irradiation units 52 may be plural, and for example, the infrared irradiation units 52 may be provided near the upper left corner and near the upper right corner of the vehicle instrument D.
  • a plurality of light guide members 120 may be provided so as to correspond to the installation positions of the individual infrared irradiation units 52.
  • the circuit board 20 can be freely arranged corresponding to the shape of the housing 80.
  • FIG. 15 shows a modification 6 of the invention.
  • the structure of the modified example 4 is used as a basic structure, and in addition to the basic structure, a reflection plate 140 having a function of reflecting infrared light is used as an optical member instead of the light guide member 120. ing.
  • the reflection plate 140 is inclinedly arranged at the position where the reflection portion 122 of the light guide member 120 disclosed in Modification 4 is formed, and is fixed to the peripheral wall portion 82 by using a fixing means as appropriate.
  • Infrared light emitted from the infrared irradiation unit 52 is configured to be guided to the peripheral edge portion 42 by using a reflection plate 140 located on the right side of the infrared irradiation unit 52 as shown by an arrow in FIG. .. Then, the infrared light reaching the peripheral portion 42 is irradiated toward the front side through the protective member 40 and reaches the face of the viewer E. Further, the infrared light after irradiating the viewer E (face of the viewer E) is reflected in the opposite direction and can enter the image pickup means 51 installed on the upper portion 93 of the instrument panel 90.
  • Display panel (display means) 11 Display surface 20 circuit board 21 Control unit 30 light sources 40 Protective material 42 Peripheral part (non-overlapping part) 50 camera module 51 imaging means 52 Infrared irradiation unit 60 Optical member 61 prism sheet 61a, 62a Missing part 61b, 62b Through hole portion 62 Light diffusion sheet 70 Case member 71 Main body 72 First cavity 73 Second cavity 74 Barrier 80 housing 90 Instrument panel 91 Opening wall 92 Translucent part 120 Light guide member (optical member) 130 display unit 131 Lighting means 131b Flexible wiring board (circuit board) 133 frame member 133b penetration part 140 Reflector (optical member) E Viewer (driver) One side of P1 and T1 P2, T2 The other surface

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

L'invention concerne un dispositif d'affichage de véhicule pouvant détecter l'état d'un utilisateur. Le dispositif d'affichage de véhicule est pourvu : d'un écran d'affichage 10 qui affiche des informations de véhicule ; un moyen d'imagerie 51 capable de capturer l'état d'un utilisateur qui regarde l'écran d'affichage 10 et disposé sur un côté utilisateur opposé de l'écran d'affichage 10 opposé au côté utilisateur ; une partie de rayonnement infrarouge 52 disposée sur le côté utilisateur opposé de l'écran d'affichage 10 de façon à émettre une lumière infrarouge vers l'utilisateur ; une source de lumière 30 disposée sur le côté utilisateur opposé de l'écran d'affichage 10 de façon à fournir une lumière visible à l'écran d'affichage ; et une carte de circuit imprimé 20 sur laquelle sont disposés les moyens d'imagerie 51, la partie de rayonnement infrarouge 52 et la source de lumière 30.
PCT/JP2020/006186 2019-02-21 2020-02-18 Dispositif d'affichage de véhicule WO2020171044A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2019028954 2019-02-21
JP2019-028954 2019-12-26
JP2020-020281 2020-02-10
JP2020020281 2020-02-10

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WO2020171044A1 true WO2020171044A1 (fr) 2020-08-27

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002524348A (ja) * 1998-09-15 2002-08-06 ジェンテクス・コーポレーション 車両からの後方視界を強化するシステムおよび構成要素
US20100073584A1 (en) * 2008-09-22 2010-03-25 Harbach Andrew P Apparatus for illuminating a vehicle occupant with infrared light
JP2014031140A (ja) * 2012-08-06 2014-02-20 Alpine Electronics Inc 表示装置
JP2016146583A (ja) * 2015-02-09 2016-08-12 株式会社リコー 撮像装置、移動体機器制御システム及びプログラム
JP2019012156A (ja) * 2017-06-30 2019-01-24 京セラ株式会社 液晶表示装置
JP2019012055A (ja) * 2017-06-30 2019-01-24 株式会社デンソー 車両用表示装置及び撮像システム

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002524348A (ja) * 1998-09-15 2002-08-06 ジェンテクス・コーポレーション 車両からの後方視界を強化するシステムおよび構成要素
US20100073584A1 (en) * 2008-09-22 2010-03-25 Harbach Andrew P Apparatus for illuminating a vehicle occupant with infrared light
JP2014031140A (ja) * 2012-08-06 2014-02-20 Alpine Electronics Inc 表示装置
JP2016146583A (ja) * 2015-02-09 2016-08-12 株式会社リコー 撮像装置、移動体機器制御システム及びプログラム
JP2019012156A (ja) * 2017-06-30 2019-01-24 京セラ株式会社 液晶表示装置
JP2019012055A (ja) * 2017-06-30 2019-01-24 株式会社デンソー 車両用表示装置及び撮像システム

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