WO2019054162A1 - Display device - Google Patents

Display device Download PDF

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Publication number
WO2019054162A1
WO2019054162A1 PCT/JP2018/031482 JP2018031482W WO2019054162A1 WO 2019054162 A1 WO2019054162 A1 WO 2019054162A1 JP 2018031482 W JP2018031482 W JP 2018031482W WO 2019054162 A1 WO2019054162 A1 WO 2019054162A1
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WO
WIPO (PCT)
Prior art keywords
liquid crystal
display
light
display panel
crystal display
Prior art date
Application number
PCT/JP2018/031482
Other languages
French (fr)
Japanese (ja)
Inventor
青野　賢司
雅基 加藤
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 WO2019054162A1 publication Critical patent/WO2019054162A1/en

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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
    • 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
    • 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
    • G01D7/00—Indicating measured values
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes

Definitions

  • the present invention relates to a display device.
  • display devices that display various information such as vehicle information are known.
  • a TFT (Thin Film Transistor) type liquid crystal display for displaying route guidance information by an image, a pointer / meter indicating a vehicle speed or the like by a pointer, and a transmission gear by a plurality of segments.
  • a light emitting display as shown.
  • Patent Document 1 since information is displayed by a plurality of methods in a single display device, the sense of unity as a display device is poor.
  • the present invention has been made in view of the above situation, and an object of the present invention is to provide a display device capable of giving a sense of unity even when information is displayed by a plurality of methods.
  • a display device includes a display including a display surface for displaying an image, an overlapping area overlapping the display surface and a non-overlapping area not overlapping the display surface when viewed from a viewer And a liquid crystal display panel including a plurality of segments set to either the light transmitting state or the light non-transmitting state, the plurality of segments being formed in the overlapping area of the liquid crystal display panel, It is formed in a window segment that makes the display surface visible by being set to the light transmission state, and the non-overlap area of the liquid crystal display panel, and information is displayed by being set to the light transmission state And display segments.
  • a sense of unity can be exhibited even when information is displayed by a plurality of methods in a display device.
  • FIG. 2 is a schematic cross-sectional view of a display and a liquid crystal display panel according to an embodiment of the present invention.
  • the direction approaching the driver who is the viewer is defined as the front direction
  • the direction separating from the driver is defined as the back direction
  • the left and right direction and the up and down direction are defined based on the direction viewed from the driver.
  • the display device 1 for a vehicle includes first and second pointer-type meters 30L and 30R, and first and second pointer-type meters arranged at symmetrical positions along the left-right direction as viewed from the driver.
  • a display unit 50 disposed between the two pointer-type meters 30L and 30R, and a control unit 80 that controls the display device 1 for a vehicle.
  • the first pointer type meter 30L represents the vehicle speed by the position of the pointer 21 with respect to the scale 11L.
  • the second pointer type meter 30R represents the charge state of the vehicle by the position of the pointer 31 with respect to the scale 11R.
  • the display unit 50 displays various vehicle information such as shift position, route guidance information, integrated travel distance, time, fuel consumption and the like.
  • the vehicle display device 1 includes the dial 10, the middle case 40, and the circuit board 20 in addition to the display unit 50 and the hands 21 and 31 described above.
  • the circuit board 20 is a printed circuit board and has a rectangular plate shape. On the circuit board 20, a plurality of light sources 23 and a drive unit 22 for rotating the hands 21 and 31 are mounted.
  • the light source 23 is formed of an LED (Light Emitting Diode), and under the control of the control unit 80, emits light to the hands 21, 31 and the dial 10 and the light guide 53L, 53R of the display unit 50 described later.
  • the driving unit 22 includes, for example, a stepping motor, and is provided on the rear surface of the circuit board 20 as shown in FIG. Under the control of the control unit 80, the drive unit 22 rotates the hands 21 and 31 around the rotation centers 21a and 31a.
  • the middle case 40 is formed of a light shielding resin and is located between the circuit board 20 and the dial 10.
  • the middle case 40 includes a unit housing portion 41 positioned at the center in the left-right direction, a light guide portion 42 for guiding the light from the light source 23 to the scale 11L of the dial 10 and the pointer 21, and the dial 10 for the light from the light source 23 And a light guide unit 43 for guiding the scale 11 R and the pointer 31.
  • the display device 1 for vehicle includes a lower case 45, a turning member 46, and a window portion 47.
  • the lower case 45 is in the form of a box opened forward, and covers the circuit board 20 from the rear side.
  • the lower case 45 is fitted to the rear of the middle case 40.
  • the facing member 46 is formed to surround the outer periphery of the dial 10 and is fitted to the front of the middle case 40.
  • the window portion 47 is fitted in front of the facing member 46 so as to close the opening on the front side of the facing member 46.
  • the window portion 47 includes a transparent panel 47a for making the front surface of the dial 10 and the display surface 55c of the display unit 50 visible from the outside.
  • the dial 10 is installed on the front of the middle case 40, as shown in FIG.
  • graduations 11L and 11R which are designs arranged in an arc shape indicated by the hands 21 and 31 and a through hole 15 formed at the center in the left-right direction are formed.
  • the through hole 15 has a rectangular shape elongated in the left-right direction, and exposes the unit accommodating portion 41 on the front side when the dial 10 is installed in the middle case 40.
  • the first and second pointer-type instruments 30L and 30R are formed in a cylindrical shape by an arc shape including the scales 11L and 11R.
  • the dial 10 includes a plate-like translucent substrate made of a translucent resin such as polycarbonate, and a light shielding layer formed on the rear surface of the translucent substrate.
  • a translucent resin such as polycarbonate
  • a light shielding layer formed on the rear surface of the translucent substrate.
  • characters, figures or symbols indicated by the graduations 11L and 11R are removed so that light passes through the graduations 11L and 11R.
  • the dial 10 lights the graduations 11L and 11R by receiving the light from the light source 23.
  • the display unit 50 includes a unit case 51, reflectors 52L and 52R, light guides 53L and 53R, a display 55, a diffusion plate 56, a liquid crystal display panel 57, and a lens. 58 and trim 59.
  • the light guides 53L and 53R guide the light from the light source 23 to the liquid crystal display panel 57.
  • the light guides 53L and 53R are formed of a transparent acrylic resin and have an L-shaped cross section.
  • the light guides 53L and 53R are disposed so as to sandwich the display 55 in the left-right direction.
  • each of the light guides 53L, 53R includes a light entrance plate portion 53a extending in the front-rear direction, and a light exit plate portion 53b extending in the left-right direction from the front end of the light entrance plate portion 53a.
  • the light output plate portion 53b is formed in a substantially square plate shape having an arc shape in which the side far from the light input plate portion 53a bulges outward in accordance with the shape of the liquid crystal display panel 57.
  • a light receiving surface 53c for receiving the light from the light source 23 is formed on the rear end face of the light entrance plate portion 53a.
  • a light emitting surface 53d for emitting light toward the liquid crystal display panel 57 is formed on the front surface of the light emitting plate portion 53b.
  • the unit case 51 has a box shape opened forward by a light shielding resin such as black polypropylene.
  • the unit case 51 includes a module housing portion 51a, a base portion 51b, and light guide housing portions 51L and 51R.
  • the module housing portion 51 a is located at the center of the unit case 51 in the left-right direction.
  • the display 55 is accommodated in the module accommodation portion 51a.
  • the base portion 51 b is a rear surface of the unit case 51 and is located at the center in the left-right direction.
  • the base portion 51b is installed on the front surface of the circuit board 20, as shown in FIG.
  • the portions of the display unit 50 corresponding to first and second non-overlapping regions 57L and 57R described later are separated from the front surface of the circuit board 20 by the gap S.
  • the rotation center portion 31a of the pointer 31 is located in the gap S corresponding to the second non-overlapping area 57R.
  • the rotation center portion 21a of the pointer 21 is located in the gap S corresponding to the first non-overlapping area 57L.
  • the light guide housing portions 51L, 51R are disposed so as to sandwich the module housing portion 51a in the left-right direction, as shown in FIG.
  • Each of the light guide housings 51L and 51R includes a light guide cylinder 51c for housing the light entrance plate 53a of each light guide 53L and 53R and a light exit plate for housing the light exit plate 53b of each light guide 53L and 53R. And a unit 51d.
  • the light guide tube 51c penetrates in the front-rear direction.
  • the light exit plate housing portion 51 d is formed to surround the light exit plate portion 53 b from the rear surface and the side surface thereof.
  • the reflection plates 52L and 52R are provided between the light output plate portions 53b of the light guides 53L and 53R and the light output plate accommodating portion 51d of the unit case 51, and the light leaked from the light output plate portions 53b is transmitted to the light guides 53L and 53R. Reflect towards.
  • the reflecting plates 52L and 52R are formed in a substantially square plate shape having an arc shape in which one side expands outward in accordance with the shape of the light exiting plate portion 53b.
  • the diffusion plate 56 is provided between the light guides 53L and 53R and the liquid crystal display panel 57, and diffuses the light from the light emitting surface 53d of the light guides 53L and 53R and irradiates the liquid crystal display panel 57.
  • the display 55 is an active matrix type and a TFT type.
  • the display 55 displays route guidance information and the like on the display surface 55 c under the control of the control unit 80.
  • the rear surface side of the display 55 is accommodated in the module accommodation portion 51 a of the unit case 51.
  • the display 55 is electrically connected to the circuit board 20 through a flexible circuit board 55 d connected to the upper side of the rear surface of the display 55.
  • the display 55 includes a rectangular frame 55 b surrounding the outer periphery of the display surface 55 c.
  • the indicator 55 is located between the first pointer type meter 30L and the second pointer type meter 30R, and partially straddles (cuts into) the cylindrical portion of the first and second pointer type meters 30L and 30R. It is arranged as.
  • the display 55 includes a liquid crystal panel 55a and a backlight 55e, as schematically shown in FIG.
  • the liquid crystal panel 55a includes a pair of polarizing plates 55a1 and 55a2, and a liquid crystal layer 55a3 positioned between the pair of polarizing plates 55a1 and 55a2.
  • the polarizing plate 55a2 is located on the rear side of the liquid crystal layer 55a3, and emits only light in the vibration direction along the transmission axis of the light incident from the backlight 55e to the liquid crystal layer 55a3 side.
  • the liquid crystal layer 55a3 is a layer in which liquid crystal is sealed inside, and changes the vibration direction of light under the control of the control unit 80.
  • the liquid crystal layer 55a3 is located between the pair of polarizing plates 55a1 and 55a2.
  • the polarizing plate 55a1 is located on the front side of the liquid crystal layer 55a3, and emits only light in the vibration direction along the transmission axis of the light from the liquid crystal layer 55a3.
  • the transmission axes of the pair of polarizing plates 55a1 and 55a2 are set to be orthogonal to each other when viewed from the front of the vehicle display device 1.
  • the liquid crystal layer 55a3 causes the light vibration direction to coincide with the transmission axis of the polarizing plate 55a1 by rotating the light vibration direction by 90 degrees in a predetermined pixel of the liquid crystal panel 55a.
  • the liquid crystal layer 55a3 causes the vibration direction of light to coincide with the absorption axis orthogonal to the transmission axis of the polarizing plate 55a1 by not rotating the vibration direction of light in a predetermined pixel of the liquid crystal panel 55a. Thereby, light is absorbed without passing through the polarizing plate 55a1 in the predetermined pixel.
  • light representing an image can be emitted from the liquid crystal panel 55a.
  • the liquid crystal display panel 57 is a VA (Vertical Alignment) type, a passive drive type, a negative display type (normally black), and a segment display type. As shown in FIG. 3, the liquid crystal display panel 57 has an octagonal shape which is long in the left-right direction and whose both ends in the left-right direction are trapezoidal. The trapezoidal portion is formed such that the width W in the vertical direction decreases as it goes to the outer side in the horizontal direction.
  • the liquid crystal display panel 57 is electrically connected to the circuit board 20 through a flexible circuit board 57 d connected to the upper side of the liquid crystal display panel 57.
  • the flexible circuit board 57d is wired and connected to the circuit board 20 in a state of overlapping with the flexible circuit board 55d.
  • the right end of the liquid crystal display panel 57 is provided at a position overlapping the center of rotation 31 a of the pointer 31 in the front-rear direction, and the left end of the liquid crystal display panel 57 is a center of rotation 21 a of the pointer 21. It is provided at a position overlapping in the front-rear direction.
  • the liquid crystal display panel 57 includes a pair of polarizing plates 57a and 57b and a liquid crystal layer 57c positioned between the pair of polarizing plates 57a and 57b. Equipped with The polarizing plates 57a and 57b and the liquid crystal layer 57c of the liquid crystal display panel 57 function in the same manner as the polarizing plates 55a1 and 55a2 and the liquid crystal layer 55a3 of the liquid crystal panel 55a, and thus the description thereof is omitted.
  • the polarizing plate 57a is located on the front side of the liquid crystal layer 57c.
  • the polarizing plate 57b is positioned on the rear side of the liquid crystal layer 57c, that is, facing the polarizing plate 55a1 of the display 55 described above.
  • the transmission axis of the polarizing plate 57 b of the liquid crystal display panel 57 is set at an angle substantially coincident with the transmission axis of the polarizing plate 55 a 1 of the display 55.
  • This substantially match means that the angle difference between the transmission axes of the two polarizing plates 57b and 55a1 is set within 30 °. Thereby, the light intensity of the image light from the display 55 is suppressed from being attenuated by the liquid crystal display panel 57.
  • the liquid crystal display panel 57 is formed in an overlapping area 57O formed in an area overlapping the display surface 55c when viewed from the driver and an area not overlapping the display surface 55c when viewed from the driver.
  • the overlapping area 57O is located between the first and second non-overlapping areas 57L and 57R, and has a rectangular shape elongated in the left-right direction.
  • a window segment Sg2 is provided that enables the display surface 55c to be visible by being set in the light transmission state.
  • the window segment Sg2 is formed in a range not including the frame 55b of the display 55 while including the display surface 55c of the display 55 when viewed from the driver. That is, the window segment Sg2 has a rectangular shape smaller than the display surface 55c in consideration of the deviation of the driver's viewpoint.
  • the window segment Sg2 is located between the first pointer-type meter 30L and the second pointer-type meter 30R, and partially straddles (cuts into) the cylindrical portions of the first and second pointer-type meters 30L and 30R. It is arranged as.
  • the liquid crystal display panel 57 is provided with one segment electrode (not shown) corresponding to the window segment Sg2.
  • the alignment direction of the liquid crystal molecules in the liquid crystal layer 57c does not change, and the window segment Sg2 becomes light non-transmissive and turns black. Therefore, at this time, the display surface 55c of the display 55 is hidden by the window segment Sg2.
  • the alignment direction of the liquid crystal molecules of the liquid crystal layer 57c is changed by energizing between the segment electrode and the scanning electrode (not shown), and the window segment Sg2 is light opaque. It switches from the state to the light transmission state. Thereby, the window segment Sg2 exposes the display surface 55c of the display 55 so as to be visible.
  • the window segment Sg2 functions as a shutter that hides the display surface 55c or exposes the display surface 55c.
  • the first non-overlapping area 57L is located on the left side of the overlapping area 57O and overlaps the light exit surface 53d of the light guide 53L.
  • the second non-overlapping area 57R is located on the right side of the overlapping area 57O and overlaps the light exit surface 53d of the light guide 53R.
  • the first and second non-overlapping areas 57L and 57R are provided with a plurality of display segments Sg1 capable of displaying numbers, figures or symbols. For example, one Arabic numeral is represented by seven display segments Sg1.
  • the liquid crystal display panel 57 is provided with segment electrodes of the number and shape corresponding to the plurality of display segments Sg1.
  • the display segment Sg1 becomes light non-transmissive and turns black.
  • the segment electrode and the scanning electrode are energized, the alignment direction of the liquid crystal molecules of the liquid crystal layer 57c is changed, and the display segment Sg1 becomes a light transmitting state.
  • the display segment Sg1 becomes a light transmitting state.
  • the liquid crystal display panel 57 becomes black because the entire area of the liquid crystal display panel 57 is in a light non-transmissive state when the control unit 80 does not energize the vehicle, for example, when the power of the vehicle is turned off.
  • the trim 59 as shown in FIG. 3, is made of synthetic resin such as ABS resin, is long in the left-right direction, and both ends are bulged outward, and a substantially rectangular frame having an arc shape similar to arc-shaped graduations 11L and 11R.
  • the liquid crystal display panel 57 covers the entire outer periphery of the liquid crystal display panel 57.
  • the trim 59 is fitted to the unit case 51 from the front.
  • the surface of the trim 59 is painted silver.
  • the lens 58 is formed of a translucent polycarbonate sheet in a substantially rectangular plate shape that is long in the left-right direction and has an arc shape whose both ends bulge outward.
  • the lens 58 is located in front of the diffusion plate 56, and the peripheral portion of the lens 58 is pressed by the trim 59 toward the liquid crystal display panel 57.
  • the lens 58 has a light shielding layer formed on the rear surface.
  • the light shielding layer has a see-through portion 58a formed so that the display segment Sg1 and the window segment Sg2 of the liquid crystal display panel 57 can be viewed.
  • the see-through portion 58 a is formed in a similar shape of the trim 59.
  • the control unit 80 is a microcomputer including a central processing unit (CPU), an image processing integrated circuit (IC), a read only memory (ROM), a random access memory (RAM), and the like.
  • the control unit 80 controls the display 55, the light source 23, the drive unit 22, and the liquid crystal display panel 57.
  • the control unit 80 displays an image (for example, an opening image) on the display surface 55c of the display 55 and switches the window segment Sg2 from the light non-transmissive state to the light transmissive state.
  • the image display processing on the display surface 55c and the switching processing to the light transmission state of the window segment Sg2 may be performed simultaneously, or either one may be performed first.
  • the control unit 80 displays route guidance information and the like on the display surface 55c.
  • control unit 80 switches a predetermined combination of the plurality of display segments Sg1 from the light non-transmissive state to the light transmissive state while lighting the light sources 23 corresponding to the light guides 53L and 53R.
  • various vehicle information such as the shift position, the integrated travel distance, the time, the fuel consumption and the like are displayed in the first and second non-overlapping areas 57L and 57R.
  • the control unit 80 switches the window segment Sg2 and the plurality of display segments Sg1 from the light transmission state to the light non-transmission state.
  • the control unit 80 turns off the light source 23 and turns off the image displayed on the display surface 55 c of the display 55.
  • the display device 1 for a vehicle includes the display 55 including the display surface 55c for displaying an image, and the first and second display regions 55 that overlap the display surface 55c and the display surface 55c when viewed from the viewer. And a liquid crystal display panel 57 including a plurality of segments Sg1 and Sg2 set in either the light transmitting state or the light non-transmitting state.
  • the plurality of segments Sg1 and Sg2 are formed in the overlapping region 57O of the liquid crystal display panel 57, and are set in the light transmission state to make the display surface 55c visible.
  • a plurality of display segments Sg1 formed in the second non-overlapping regions 57L and 57R and displaying information by being set in the light transmission state.
  • the information displayed on the display surface 55c of the display 55 exposed when the window segment Sg2 is set to the light transmission state, and any one of the plurality of display segments Sg1 is set to the light transmission state The information displayed by being displayed is visually recognized through the single liquid crystal display panel 57. Therefore, even when information is displayed by a plurality of methods, reduction in light emission luminance can be prevented, and visibility can be improved.
  • the liquid crystal display panel is not superimposed on the display is adopted, two liquid crystal display panels adjacent to the display surface of the display are required, which not only impairs the sense of unity, The number of parts increases, the connection between the liquid crystal display panel and the circuit board becomes complicated, and the assembly becomes complicated. In this respect, in the above configuration, the adoption of the single liquid crystal display panel 57 can solve these problems.
  • the liquid crystal display panel 57 includes the polarizing plate 57 b provided at a position close to the display 55.
  • the display 55 includes a polarizing plate 55 a 1 provided at a position close to the liquid crystal display panel 57.
  • the transmission axis of the polarizing plate 57 b of the liquid crystal display panel 57 is set at an angle substantially coincident with the transmission axis of the polarizing plate 55 a 1 of the display 55. According to this configuration, the attenuation of the light intensity of the image light from the display 55 by the liquid crystal display panel 57 is suppressed. Therefore, a sense of unity as the display device 1 for a vehicle can be obtained, and the design can be improved.
  • the display 55 includes a frame 55b surrounding the periphery of the display surface 55c, and the window segment Sg2 is formed in a range not including the frame 55b while including the display surface 55c as viewed from the viewer. . According to this configuration, when the window segment Sg2 is set to the light transmission state, the driver can be prevented from seeing the frame 55b. Therefore, it is suppressed that the sense of unity as the display apparatus 1 for vehicles is impaired, and the designability in the display apparatus 1 for vehicles can be improved.
  • the vehicle display device 1 includes the light source 23 for illuminating the first and second non-overlapping areas 57L and 57R of the liquid crystal display panel 57, the dial 10 representing the design, the display 55, and the liquid crystal display panel 57. And a display unit 50 including: The display unit 50 is positioned with a gap S from the dial 10 toward the viewer. According to this configuration, the display unit 50 can be floated with respect to the dial 10. Therefore, a more novel design can be realized in the display device 1 for a vehicle, and the design can be improved.
  • the display apparatus 1 for vehicles is provided with the pointer
  • the rotation center portions 21 a and 31 a of the hands 21 and 31 are located in the gap S. According to this configuration, the rotation center portions 21a and 31a of the hands 21 and 31 are hidden by the display unit 50, and only the tip end sides of the hands 21 and 31 protrude from the display unit 50. Thereby, in the display device 1 for vehicles, a more novel design can be realized, and the design can be improved.
  • the liquid crystal display panel 57 is a VA type and a normally black type. According to this configuration, when the liquid crystal display panel 57 is not energized, the entire area of the liquid crystal display panel 57 is displayed in black. Therefore, at this time, the driver can be prevented from seeing the display surface 55c of the display 55 via the liquid crystal display panel 57. Therefore, a sense of unity as the display device 1 for a vehicle can be obtained, and the design can be improved. Also, if the liquid crystal display panel is normally white type, if the liquid crystal display panel receives light from the light source or the display when the liquid crystal display panel is not energized, the liquid crystal display panel receives light from the light source.
  • the liquid crystal display panel 57 Since the light is transmitted, the light receiving area of the liquid crystal display panel is displayed in white, and the appearance is deteriorated.
  • the liquid crystal display panel 57 does not transmit light from the light source 23 or the display 55 when the liquid crystal display panel 57 is not energized. Even in this case, deterioration in appearance is suppressed.
  • the VA type liquid crystal display panel 57 has lower external light transmittance than a TN (Twisted Nematic) type liquid crystal display panel. Therefore, the use of the VA liquid crystal display panel 57 reduces external light reflection on the display surface 55 c of the display 55.
  • the display apparatus 1 for vehicles can be exhibited. Further, along with this, on the display surface 55c of the display 55, measures against external light such as AR (Anti-Reflective) processing or optical bonding become unnecessary. Further, since the VA type liquid crystal display panel 57 has a relatively small background drop, the display unit 50 and hence the sense of integration of the display device 1 for a vehicle can be exhibited even at night.
  • AR Anti-Reflective
  • the liquid crystal display panel 57 is formed so that the width W extending in the vertical direction (first direction) as viewed from the driver changes as it progresses in the horizontal direction (second direction). According to this configuration, by forming the liquid crystal display panel 57 into a different shape, the display unit 50 with a novel design and thus the display device 1 for a vehicle can be realized. Generally, the liquid crystal display panel 57 can be easily and inexpensively changed in outline as compared to the display 55, so that the desired outline of the display unit 50 can be easily and inexpensively realized.
  • the liquid crystal display panel 57 is of the normally black type in the above embodiment, it may be of the normally white type. Further, in the above-described embodiment, the liquid crystal display panel 57 is a VA type, but may be an IPS (In Plane Switching) type or a TN type.
  • IPS In Plane Switching
  • the shape of the liquid crystal display panel 57 in the above embodiment can be changed as appropriate, and may be a circle, an ellipse, a polygon other than octagon, or the like. In addition, a part of the liquid crystal display panel 57 may have an arc shape.
  • the display unit 50 includes the light guides 53L and 53R for guiding the light from the light source 23 to the liquid crystal display panel 57.
  • the light guides 53L and 53R may be omitted. In this case, the light from the light source 23 may be directly irradiated to the liquid crystal display panel 57.
  • window segment Sg2 was constituted by a single segment, it may be constituted by a plurality of segments.
  • a part of the display surface 55c is exposed by making a part of the plurality of segments constituting the window segment Sg2 into a light transmitting state and making the rest into a light non-transmitting state, and the remaining part of the display surface 55c It is also possible to hide parts of
  • the display 55 is a liquid crystal type display, but instead of or in addition to this, an organic EL (Electro-Luminescence) type display may be provided.
  • an organic EL (Electro-Luminescence) type display may be provided.
  • At least one of the first and second pointer-type meters 30L and 30R in the above embodiment may be omitted.
  • the display device 1 for vehicle may be configured only by the display unit 50.
  • at least one of the first and second non-overlapping regions 57L and 57R in the above embodiment may be omitted.
  • a non-overlapping area may be formed all around the overlapping area 57O, and various types of vehicle information may be displayed in the non-overlapping area.
  • the display apparatus 1 for vehicles was mounted in the vehicle, it may be mounted not only in a vehicle but in other vehicles, such as a ship and an airplane. Furthermore, they may be mounted on devices other than vehicles.

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Abstract

The present invention provides a display device capable of giving a viewer a sense of unity even when presenting information using a plurality of methods. A vehicle display device comprises: a display unit 55 including a display surface 55c for displaying an image; and a liquid crystal display panel 57 having an overlap region 57O that overlaps the display surface 55c when viewed by a viewer and non-overlap regions 57L, 57R that are not overlapped by the display surface 55c, and including a plurality of segments Sg1, Sg2 that is brought into either an optically transmissive or optically non-transmissive state. The plurality of segments Sg1, Sg2 includes: a window segment Sg2 that is formed in the overlap region 57O of the liquid crystal display panel 57 and allows the viewer to see the display surface 55c when the window segment is set to be optically transmissive; and a plurality of display segments Sg1 that is formed in the first and second non-overlap regions 57L, 57R of the liquid crystal display panel 57 and allows the viewer to see information when the display segments are set to be optically transmissive.

Description

表示装置Display device
　本発明は、表示装置に関する。 The present invention relates to a display device.
　従来から、車両情報等の各種情報を表示する表示装置が知られている。例えば、特許文献１に記載の表示装置は、画像により経路誘導情報を表示するＴＦＴ（Thin Film Transistor）型の液晶表示器と、指針により車速等を示す指針計器と、複数のセグメントにより変速ギアを示す発光型表示器と、を備える。 2. Description of the Related Art Conventionally, display devices that display various information such as vehicle information are known. For example, in the display device described in Patent Document 1, a TFT (Thin Film Transistor) type liquid crystal display for displaying route guidance information by an image, a pointer / meter indicating a vehicle speed or the like by a pointer, and a transmission gear by a plurality of segments. And a light emitting display as shown.
特開２０００－２５０４２３号公報JP 2000-250423 A
　上記特許文献１の構成では、単一の表示装置において複数の方式により情報が表示されるため、表示装置としての一体感が乏しかった。 In the configuration of Patent Document 1, since information is displayed by a plurality of methods in a single display device, the sense of unity as a display device is poor.
　本発明は、上記実状を鑑みてなされたものであり、複数の方式により情報が表示される場合であっても一体感を出すことができる表示装置を提供することを目的とする。 The present invention has been made in view of the above situation, and an object of the present invention is to provide a display device capable of giving a sense of unity even when information is displayed by a plurality of methods.
　上記目的を達成するため、本発明に係る表示装置は、画像を表示する表示面を含む表示器と、視認者から見て、前記表示面に重なる重複領域及び前記表示面に重ならない非重複領域を有し、光透過状態及び光不透過状態の何れかに設定される複数のセグメントを含む液晶表示パネルと、を備え、前記複数のセグメントは、前記液晶表示パネルの前記重複領域に形成され、前記光透過状態に設定されることにより前記表示面を視認可能とする窓セグメントと、前記液晶表示パネルの前記非重複領域に形成され、前記光透過状態に設定されることにより情報が表示される表示セグメントと、を含む。 In order to achieve the above object, a display device according to the present invention includes a display including a display surface for displaying an image, an overlapping area overlapping the display surface and a non-overlapping area not overlapping the display surface when viewed from a viewer And a liquid crystal display panel including a plurality of segments set to either the light transmitting state or the light non-transmitting state, the plurality of segments being formed in the overlapping area of the liquid crystal display panel, It is formed in a window segment that makes the display surface visible by being set to the light transmission state, and the non-overlap area of the liquid crystal display panel, and information is displayed by being set to the light transmission state And display segments.
　本発明によれば、表示装置において、複数の方式により情報が表示される場合であっても一体感を出すことができる。 According to the present invention, a sense of unity can be exhibited even when information is displayed by a plurality of methods in a display device.
本発明の一実施形態に係る表示装置の正面図である。It is a front view of a display concerning one embodiment of the present invention. 本発明の一実施形態に係る表示装置の分解斜視図である。It is an exploded perspective view of a display concerning one embodiment of the present invention. 本発明の一実施形態に係る表示器ユニットの分解斜視図である。It is an exploded perspective view of a display unit concerning one embodiment of the present invention. 本発明の一実施形態に係る表示装置の断面図である。It is a sectional view of a display concerning one embodiment of the present invention. 本発明の一実施形態に係る表示器及び液晶表示パネルの模式的な断面図である。FIG. 2 is a schematic cross-sectional view of a display and a liquid crystal display panel according to an embodiment of the present invention.
　本発明に係る車両用表示装置の一実施形態について図１～図５を参照して説明する。なお、以下では、車両用表示装置において、視認者である運転者に近づく方向を前方向と規定し、運転者から離れる方向を後方向と規定する。また、運転者から見た方向に基づき左右方向及び上下方向を規定する。 One embodiment of a display device for a vehicle according to the present invention will be described with reference to FIG. 1 to FIG. In the following, in the vehicle display device, the direction approaching the driver who is the viewer is defined as the front direction, and the direction separating from the driver is defined as the back direction. Further, the left and right direction and the up and down direction are defined based on the direction viewed from the driver.
　車両用表示装置１は、図１に示すように、運転者から見て左右方向に沿って、左右対称位置に配列される第１及び第２の指針式計器３０Ｌ，３０Ｒと、第１及び第２の指針式計器３０Ｌ，３０Ｒの間に配置される表示器ユニット５０と、車両用表示装置１を制御する制御部８０と、を備える。 As shown in FIG. 1, the display device 1 for a vehicle includes first and second pointer- type meters 30L and 30R, and first and second pointer-type meters arranged at symmetrical positions along the left-right direction as viewed from the driver. A display unit 50 disposed between the two pointer- type meters 30L and 30R, and a control unit 80 that controls the display device 1 for a vehicle.
　第１の指針式計器３０Ｌは、目盛り１１Ｌに対する指針２１の位置により車両速度を表す。第２の指針式計器３０Ｒは、目盛り１１Ｒに対する指針３１の位置により車両の充電状態を表す。表示器ユニット５０には、シフトポジション、経路案内情報、積算走行距離、時刻、燃費等の各種車両情報が表示される。 The first pointer type meter 30L represents the vehicle speed by the position of the pointer 21 with respect to the scale 11L. The second pointer type meter 30R represents the charge state of the vehicle by the position of the pointer 31 with respect to the scale 11R. The display unit 50 displays various vehicle information such as shift position, route guidance information, integrated travel distance, time, fuel consumption and the like.
　詳しくは、車両用表示装置１は、図２に示すように、上述した表示器ユニット５０及び指針２１，３１に加えて、文字板１０と、中ケース４０と、回路基板２０と、を備える。 Specifically, as shown in FIG. 2, the vehicle display device 1 includes the dial 10, the middle case 40, and the circuit board 20 in addition to the display unit 50 and the hands 21 and 31 described above.
　回路基板２０は、プリント基板であり、矩形板状をなす。回路基板２０には、複数の光源２３と、指針２１，３１を回転させる駆動部２２と、が実装されている。
　光源２３は、ＬＥＤ（Light Emitting Diode）からなり、制御部８０による制御のもと、指針２１，３１、文字板１０及び表示器ユニット５０の後述する導光体５３Ｌ，５３Ｒに光を照射する。
　駆動部２２は、例えば、ステッピングモータを備え、図４に示すように、回路基板２０の後面に設けられる。駆動部２２は、制御部８０による制御のもと、指針２１，３１をその回転中心部２１ａ，３１ａを中心に回転させる。 The circuit board 20 is a printed circuit board and has a rectangular plate shape. On the circuit board 20, a plurality of light sources 23 and a drive unit 22 for rotating the hands 21 and 31 are mounted.
The light source 23 is formed of an LED (Light Emitting Diode), and under the control of the control unit 80, emits light to the hands 21, 31 and the dial 10 and the light guide 53L, 53R of the display unit 50 described later.
The driving unit 22 includes, for example, a stepping motor, and is provided on the rear surface of the circuit board 20 as shown in FIG. Under the control of the control unit 80, the drive unit 22 rotates the hands 21 and 31 around the rotation centers 21a and 31a.
　中ケース４０は、図２に示すように、遮光性の樹脂により形成され、回路基板２０と文字板１０の間に位置する。中ケース４０は、左右方向の中央に位置するユニット収容部４１と、光源２３からの光を文字板１０の目盛り１１Ｌ及び指針２１に導く導光部４２と、光源２３からの光を文字板１０の目盛り１１Ｒ及び指針３１に導く導光部４３と、を備える。 As shown in FIG. 2, the middle case 40 is formed of a light shielding resin and is located between the circuit board 20 and the dial 10. The middle case 40 includes a unit housing portion 41 positioned at the center in the left-right direction, a light guide portion 42 for guiding the light from the light source 23 to the scale 11L of the dial 10 and the pointer 21, and the dial 10 for the light from the light source 23 And a light guide unit 43 for guiding the scale 11 R and the pointer 31.
　さらに、車両用表示装置１は、図４に示すように、下ケース４５と、見返し部材４６と、窓部４７と、を備える。
　下ケース４５は、前方に向けて開口した箱状をなし、回路基板２０を後側から覆う。下ケース４５は、中ケース４０の後方に嵌め込まれる。
　見返し部材４６は、文字板１０の外周を囲むように形成され、中ケース４０の前方に嵌め込まれる。
　窓部４７は、見返し部材４６の前側の開口を閉じるように見返し部材４６の前方に嵌め込まれる。窓部４７は、文字板１０の前面及び表示器ユニット５０の表示面５５ｃを外部から視認させるための透明パネル４７ａを備える。 Furthermore, as shown in FIG. 4, the display device 1 for vehicle includes a lower case 45, a turning member 46, and a window portion 47.
The lower case 45 is in the form of a box opened forward, and covers the circuit board 20 from the rear side. The lower case 45 is fitted to the rear of the middle case 40.
The facing member 46 is formed to surround the outer periphery of the dial 10 and is fitted to the front of the middle case 40.
The window portion 47 is fitted in front of the facing member 46 so as to close the opening on the front side of the facing member 46. The window portion 47 includes a transparent panel 47a for making the front surface of the dial 10 and the display surface 55c of the display unit 50 visible from the outside.
　文字板１０は、図２に示すように、中ケース４０の前面に設置される。文字板１０には、指針２１，３１が指し示す円弧状に配列される意匠である目盛り１１Ｌ，１１Ｒと、左右方向の中央に形成される貫通孔１５が形成される。貫通孔１５は、左右方向に長い長方形状をなし、文字板１０が中ケース４０に設置された際、ユニット収容部４１を前側に露出させる。第１及び第２の指針式計器３０Ｌ，３０Ｒは、目盛り１１Ｌ，１１Ｒを含む円弧形状により円筒形状に形成されている。 The dial 10 is installed on the front of the middle case 40, as shown in FIG. In the dial 10, graduations 11L and 11R which are designs arranged in an arc shape indicated by the hands 21 and 31 and a through hole 15 formed at the center in the left-right direction are formed. The through hole 15 has a rectangular shape elongated in the left-right direction, and exposes the unit accommodating portion 41 on the front side when the dial 10 is installed in the middle case 40. The first and second pointer- type instruments 30L and 30R are formed in a cylindrical shape by an arc shape including the scales 11L and 11R.
　文字板１０は、ポリカーボネート等の透光性樹脂からなる板状の透光性基板と、この透光性基板の後面に形成される遮光層と、を備える。目盛り１１Ｌ，１１Ｒを光が通過するように、この遮光層のうち目盛り１１Ｌ，１１Ｒが示す文字、図形又は記号が除去される。これにより、文字板１０は、光源２３からの光を受けることにより目盛り１１Ｌ，１１Ｒを点灯させる。 The dial 10 includes a plate-like translucent substrate made of a translucent resin such as polycarbonate, and a light shielding layer formed on the rear surface of the translucent substrate. In the light shielding layer, characters, figures or symbols indicated by the graduations 11L and 11R are removed so that light passes through the graduations 11L and 11R. Thereby, the dial 10 lights the graduations 11L and 11R by receiving the light from the light source 23.
　表示器ユニット５０は、図３に示すように、ユニットケース５１と、反射板５２Ｌ，５２Ｒと、導光体５３Ｌ，５３Ｒと、表示器５５と、拡散板５６と、液晶表示パネル５７と、レンズ５８と、トリム５９と、を備える。 As shown in FIG. 3, the display unit 50 includes a unit case 51, reflectors 52L and 52R, light guides 53L and 53R, a display 55, a diffusion plate 56, a liquid crystal display panel 57, and a lens. 58 and trim 59.
　導光体５３Ｌ，５３Ｒは、光源２３からの光を液晶表示パネル５７に導く。導光体５３Ｌ，５３Ｒは、透明なアクリル樹脂により、断面Ｌ字状に形成されている。導光体５３Ｌ，５３Ｒは、左右方向において、表示器５５を挟み込むように配置される。
　詳しくは、各導光体５３Ｌ，５３Ｒは、前後方向に延びる入光板部５３ａと、入光板部５３ａの前端から左右方向に延びる出光板部５３ｂと、を備える。出光板部５３ｂは、液晶表示パネル５７の形状に合わせて、入光板部５３ａから遠い辺が外側に膨らむ円弧状をなす略正方形板状に形成される。
　図４に示すように、入光板部５３ａの後端面には、光源２３からの光を受ける受光面５３ｃが形成される。出光板部５３ｂの前面には、液晶表示パネル５７に向けて出光する出光面５３ｄが形成される。 The light guides 53L and 53R guide the light from the light source 23 to the liquid crystal display panel 57. The light guides 53L and 53R are formed of a transparent acrylic resin and have an L-shaped cross section. The light guides 53L and 53R are disposed so as to sandwich the display 55 in the left-right direction.
Specifically, each of the light guides 53L, 53R includes a light entrance plate portion 53a extending in the front-rear direction, and a light exit plate portion 53b extending in the left-right direction from the front end of the light entrance plate portion 53a. The light output plate portion 53b is formed in a substantially square plate shape having an arc shape in which the side far from the light input plate portion 53a bulges outward in accordance with the shape of the liquid crystal display panel 57.
As shown in FIG. 4, a light receiving surface 53c for receiving the light from the light source 23 is formed on the rear end face of the light entrance plate portion 53a. A light emitting surface 53d for emitting light toward the liquid crystal display panel 57 is formed on the front surface of the light emitting plate portion 53b.
　ユニットケース５１は、図３に示すように、黒色のポリプロピレン等の遮光性の樹脂により前方に向けて開口した箱状をなす。詳しくは、ユニットケース５１は、モジュール収容部５１ａと、土台部５１ｂと、導光体収容部５１Ｌ，５１Ｒと、を備える。 As shown in FIG. 3, the unit case 51 has a box shape opened forward by a light shielding resin such as black polypropylene. Specifically, the unit case 51 includes a module housing portion 51a, a base portion 51b, and light guide housing portions 51L and 51R.
　モジュール収容部５１ａは、ユニットケース５１における左右方向の中央に位置する。モジュール収容部５１ａには表示器５５が収容される。 The module housing portion 51 a is located at the center of the unit case 51 in the left-right direction. The display 55 is accommodated in the module accommodation portion 51a.
　土台部５１ｂは、ユニットケース５１の後面であって、左右方向の中央に位置する。土台部５１ｂは、図４に示すように、回路基板２０の前面に設置される。これにより、表示器ユニット５０における後述する第１及び第２の非重複領域５７Ｌ，５７Ｒに対応する部位は回路基板２０の前面から隙間Ｓだけ離れる。第２の非重複領域５７Ｒに対応する隙間Ｓには、指針３１の回転中心部３１ａが位置している。第１の非重複領域５７Ｌに対応する隙間Ｓには、指針２１の回転中心部２１ａが位置している。 The base portion 51 b is a rear surface of the unit case 51 and is located at the center in the left-right direction. The base portion 51b is installed on the front surface of the circuit board 20, as shown in FIG. As a result, the portions of the display unit 50 corresponding to first and second non-overlapping regions 57L and 57R described later are separated from the front surface of the circuit board 20 by the gap S. The rotation center portion 31a of the pointer 31 is located in the gap S corresponding to the second non-overlapping area 57R. The rotation center portion 21a of the pointer 21 is located in the gap S corresponding to the first non-overlapping area 57L.
　導光体収容部５１Ｌ，５１Ｒは、図３に示すように、左右方向にモジュール収容部５１ａを挟み込むように配置される。
　各導光体収容部５１Ｌ，５１Ｒは、各導光体５３Ｌ，５３Ｒの入光板部５３ａを収容する導光筒５１ｃと、各導光体５３Ｌ，５３Ｒの出光板部５３ｂを収容する出光板収容部５１ｄと、を備える。導光筒５１ｃは前後方向に貫通する。出光板収容部５１ｄは、出光板部５３ｂをその後面及びその側面から囲むように形成される。 The light guide housing portions 51L, 51R are disposed so as to sandwich the module housing portion 51a in the left-right direction, as shown in FIG.
Each of the light guide housings 51L and 51R includes a light guide cylinder 51c for housing the light entrance plate 53a of each light guide 53L and 53R and a light exit plate for housing the light exit plate 53b of each light guide 53L and 53R. And a unit 51d. The light guide tube 51c penetrates in the front-rear direction. The light exit plate housing portion 51 d is formed to surround the light exit plate portion 53 b from the rear surface and the side surface thereof.
　反射板５２Ｌ，５２Ｒは、導光体５３Ｌ，５３Ｒの出光板部５３ｂとユニットケース５１の出光板収容部５１ｄとの間に設けられ、出光板部５３ｂから漏れた光を導光体５３Ｌ，５３Ｒに向けて反射する。反射板５２Ｌ，５２Ｒは、出光板部５３ｂの形状に合わせて、一辺が外側に膨らむ円弧状をなす略正方形板状に形成される。 The reflection plates 52L and 52R are provided between the light output plate portions 53b of the light guides 53L and 53R and the light output plate accommodating portion 51d of the unit case 51, and the light leaked from the light output plate portions 53b is transmitted to the light guides 53L and 53R. Reflect towards. The reflecting plates 52L and 52R are formed in a substantially square plate shape having an arc shape in which one side expands outward in accordance with the shape of the light exiting plate portion 53b.
　拡散板５６は、導光体５３Ｌ，５３Ｒと液晶表示パネル５７との間に設けられ、導光体５３Ｌ，５３Ｒの出光面５３ｄからの光を拡散したうえで液晶表示パネル５７に照射する。 The diffusion plate 56 is provided between the light guides 53L and 53R and the liquid crystal display panel 57, and diffuses the light from the light emitting surface 53d of the light guides 53L and 53R and irradiates the liquid crystal display panel 57.
　表示器５５は、アクティブマトリクス型であり、かつＴＦＴ型である。表示器５５は、制御部８０による制御のもと、その表示面５５ｃに経路案内情報等を表示する。表示器５５は、その後面側がユニットケース５１のモジュール収容部５１ａに収容されている。表示器５５は、表示器５５の後面の上側に接続された可撓性回路基板５５ｄを通じて回路基板２０と電気的に接続されている。また、表示器５５は、表示面５５ｃの外周囲を囲む長方形の枠部５５ｂを備える。表示器５５は、第１の指針式計器３０Ｌと第２の指針式計器３０Ｒの間に位置し、第１及び第２の指針式計器３０Ｌ，３０Ｒの円筒形状部内に一部が跨る（食い込む）ように配置されている。 The display 55 is an active matrix type and a TFT type. The display 55 displays route guidance information and the like on the display surface 55 c under the control of the control unit 80. The rear surface side of the display 55 is accommodated in the module accommodation portion 51 a of the unit case 51. The display 55 is electrically connected to the circuit board 20 through a flexible circuit board 55 d connected to the upper side of the rear surface of the display 55. In addition, the display 55 includes a rectangular frame 55 b surrounding the outer periphery of the display surface 55 c. The indicator 55 is located between the first pointer type meter 30L and the second pointer type meter 30R, and partially straddles (cuts into) the cylindrical portion of the first and second pointer type meters 30L and 30R. It is arranged as.
　詳しくは、表示器５５は、図５に模式的に示すように、液晶パネル５５ａと、バックライト５５ｅと、を備える。液晶パネル５５ａは、一対の偏光板５５ａ１，５５ａ２と、一対の偏光板５５ａ１，５５ａ２の間に位置する液晶層５５ａ３と、を備える。
　偏光板５５ａ２は、液晶層５５ａ３の後側に位置し、バックライト５５ｅから入射された光のうち自身の透過軸に沿う振動方向の光のみを液晶層５５ａ３側に出射する。
　液晶層５５ａ３は、内部に液晶が封止された層であり、制御部８０による制御のもと、光の振動方向を変化させる。液晶層５５ａ３は、一対の偏光板５５ａ１，５５ａ２の間に位置する。
　偏光板５５ａ１は、液晶層５５ａ３の前側に位置し、液晶層５５ａ３からの光のうち自身の透過軸に沿う振動方向の光のみを出射する。例えば、一対の偏光板５５ａ１，５５ａ２の透過軸は、車両用表示装置１の正面から見て互いに直交する向きに設定されている。この場合、液晶層５５ａ３は、液晶パネル５５ａの所定の画素において、光の振動方向を９０度回転させることで光の振動方向を偏光板５５ａ１の透過軸に一致させる。これにより、当該所定の画素において光が偏光板５５ａ１を透過する。また、液晶層５５ａ３は、液晶パネル５５ａの所定の画素において、光の振動方向を回転させないことで光の振動方向を偏光板５５ａ１の透過軸に直交する吸収軸に一致させる。これにより、当該所定の画素において光が偏光板５５ａ１を透過せずに吸収される。このように、液晶パネル５５ａの画素毎に光の透過及び吸収がコントロールされることで、液晶パネル５５ａから画像を表す光を出射させることができる。 Specifically, the display 55 includes a liquid crystal panel 55a and a backlight 55e, as schematically shown in FIG. The liquid crystal panel 55a includes a pair of polarizing plates 55a1 and 55a2, and a liquid crystal layer 55a3 positioned between the pair of polarizing plates 55a1 and 55a2.
The polarizing plate 55a2 is located on the rear side of the liquid crystal layer 55a3, and emits only light in the vibration direction along the transmission axis of the light incident from the backlight 55e to the liquid crystal layer 55a3 side.
The liquid crystal layer 55a3 is a layer in which liquid crystal is sealed inside, and changes the vibration direction of light under the control of the control unit 80. The liquid crystal layer 55a3 is located between the pair of polarizing plates 55a1 and 55a2.
The polarizing plate 55a1 is located on the front side of the liquid crystal layer 55a3, and emits only light in the vibration direction along the transmission axis of the light from the liquid crystal layer 55a3. For example, the transmission axes of the pair of polarizing plates 55a1 and 55a2 are set to be orthogonal to each other when viewed from the front of the vehicle display device 1. In this case, the liquid crystal layer 55a3 causes the light vibration direction to coincide with the transmission axis of the polarizing plate 55a1 by rotating the light vibration direction by 90 degrees in a predetermined pixel of the liquid crystal panel 55a. Thus, light passes through the polarizing plate 55a1 in the predetermined pixel. The liquid crystal layer 55a3 causes the vibration direction of light to coincide with the absorption axis orthogonal to the transmission axis of the polarizing plate 55a1 by not rotating the vibration direction of light in a predetermined pixel of the liquid crystal panel 55a. Thereby, light is absorbed without passing through the polarizing plate 55a1 in the predetermined pixel. As described above, by controlling transmission and absorption of light for each pixel of the liquid crystal panel 55a, light representing an image can be emitted from the liquid crystal panel 55a.
　液晶表示パネル５７は、ＶＡ（Vertical Alignment）型、パッシブ駆動型、ネガ表示型（ノーマリーブラック）であり、かつセグメント表示型である。液晶表示パネル５７は、図３に示すように、左右方向に長く、左右方向の両端が台形をなす八角形形状をなす。この台形部は、左右方向の外側に向かうにつれて上下方向の幅Ｗが小さくなるように形成されている。液晶表示パネル５７は、液晶表示パネル５７の上側辺に接続された可撓性回路基板５７ｄを通じて回路基板２０と電気的に接続されている。可撓性回路基板５７ｄは、可撓性回路基板５５ｄと重なった状態で回路基板２０へ配線され接続されている。
　また、図４に示すように、液晶表示パネル５７の右端部は指針３１の回転中心部３１ａに前後方向に重なる位置に設けられ、液晶表示パネル５７の左端部は指針２１の回転中心部２１ａに前後方向に重なる位置に設けられる。 The liquid crystal display panel 57 is a VA (Vertical Alignment) type, a passive drive type, a negative display type (normally black), and a segment display type. As shown in FIG. 3, the liquid crystal display panel 57 has an octagonal shape which is long in the left-right direction and whose both ends in the left-right direction are trapezoidal. The trapezoidal portion is formed such that the width W in the vertical direction decreases as it goes to the outer side in the horizontal direction. The liquid crystal display panel 57 is electrically connected to the circuit board 20 through a flexible circuit board 57 d connected to the upper side of the liquid crystal display panel 57. The flexible circuit board 57d is wired and connected to the circuit board 20 in a state of overlapping with the flexible circuit board 55d.
Further, as shown in FIG. 4, the right end of the liquid crystal display panel 57 is provided at a position overlapping the center of rotation 31 a of the pointer 31 in the front-rear direction, and the left end of the liquid crystal display panel 57 is a center of rotation 21 a of the pointer 21. It is provided at a position overlapping in the front-rear direction.
　液晶表示パネル５７は、図５に示すように、表示器５５の液晶パネル５５ａと同様に、一対の偏光板５７ａ，５７ｂと、一対の偏光板５７ａ，５７ｂの間に位置する液晶層５７ｃと、を備える。液晶表示パネル５７の偏光板５７ａ，５７ｂ及び液晶層５７ｃは、液晶パネル５５ａの偏光板５５ａ１，５５ａ２及び液晶層５５ａ３と同様に機能するため、その説明を省略する。偏光板５７ａは液晶層５７ｃの前側に位置する。偏光板５７ｂは、液晶層５７ｃの後側、すなわち、上述した表示器５５の偏光板５５ａ１に対面して位置する。 Similar to the liquid crystal panel 55a of the display 55, as shown in FIG. 5, the liquid crystal display panel 57 includes a pair of polarizing plates 57a and 57b and a liquid crystal layer 57c positioned between the pair of polarizing plates 57a and 57b. Equipped with The polarizing plates 57a and 57b and the liquid crystal layer 57c of the liquid crystal display panel 57 function in the same manner as the polarizing plates 55a1 and 55a2 and the liquid crystal layer 55a3 of the liquid crystal panel 55a, and thus the description thereof is omitted. The polarizing plate 57a is located on the front side of the liquid crystal layer 57c. The polarizing plate 57b is positioned on the rear side of the liquid crystal layer 57c, that is, facing the polarizing plate 55a1 of the display 55 described above.
　液晶表示パネル５７の偏光板５７ｂの透過軸は、表示器５５の偏光板５５ａ１の透過軸と略一致する角度に設定されている。この略一致は、２つの偏光板５７ｂ，５５ａ１の透過軸の角度差が３０°以内に設定されることをいう。これにより、表示器５５からの画像光の光強度が液晶表示パネル５７にて減衰することが抑制される。 The transmission axis of the polarizing plate 57 b of the liquid crystal display panel 57 is set at an angle substantially coincident with the transmission axis of the polarizing plate 55 a 1 of the display 55. This substantially match means that the angle difference between the transmission axes of the two polarizing plates 57b and 55a1 is set within 30 °. Thereby, the light intensity of the image light from the display 55 is suppressed from being attenuated by the liquid crystal display panel 57.
　また、液晶表示パネル５７は、図３に示すように、運転者から見て表示面５５ｃに重なる領域に形成される重複領域５７Ｏと、運転者から見て表示面５５ｃに重ならない領域に形成される第１及び第２の非重複領域５７Ｌ，５７Ｒと、を備える。
　重複領域５７Ｏは、第１及び第２の非重複領域５７Ｌ，５７Ｒの間に位置し、左右方向に長い長方形状をなす。重複領域５７Ｏの全域には、光透過状態に設定されることにより表示面５５ｃを視認可能とする窓セグメントＳｇ２が設けられる。窓セグメントＳｇ２は、運転者から見て、表示器５５の表示面５５ｃを含みつつ、表示器５５の枠部５５ｂを含まない範囲に形成されている。すなわち、窓セグメントＳｇ２は、運転者の視点のずれを考慮して、表示面５５ｃよりも小さい長方形状をなす。窓セグメントＳｇ２は、第１の指針式計器３０Ｌと第２の指針式計器３０Ｒの間に位置し、第１及び第２の指針式計器３０Ｌ，３０Ｒの円筒形状部内に一部が跨る（食い込む）ように配置されている。 Further, as shown in FIG. 3, the liquid crystal display panel 57 is formed in an overlapping area 57O formed in an area overlapping the display surface 55c when viewed from the driver and an area not overlapping the display surface 55c when viewed from the driver. First and second non-overlapping areas 57L and 57R.
The overlapping area 57O is located between the first and second non-overlapping areas 57L and 57R, and has a rectangular shape elongated in the left-right direction. In the entire area of the overlapping area 57O, a window segment Sg2 is provided that enables the display surface 55c to be visible by being set in the light transmission state. The window segment Sg2 is formed in a range not including the frame 55b of the display 55 while including the display surface 55c of the display 55 when viewed from the driver. That is, the window segment Sg2 has a rectangular shape smaller than the display surface 55c in consideration of the deviation of the driver's viewpoint. The window segment Sg2 is located between the first pointer-type meter 30L and the second pointer-type meter 30R, and partially straddles (cuts into) the cylindrical portions of the first and second pointer- type meters 30L and 30R. It is arranged as.
　液晶表示パネル５７には、窓セグメントＳｇ２に対応する図示しない１つのセグメント電極が設けられている。このセグメント電極と図示しない走査電極との間が通電されていないとき、液晶層５７ｃの液晶分子の配向方向が変化せず、窓セグメントＳｇ２は光不透過状態となり黒色となる。よって、このとき、表示器５５の表示面５５ｃは窓セグメントＳｇ２に隠された状態となる。
　一方、制御部８０による制御のもと、このセグメント電極と図示しない走査電極との間が通電されることにより、液晶層５７ｃの液晶分子の配向方向が変化して、窓セグメントＳｇ２は光不透過状態から光透過状態に切り替わる。これにより、窓セグメントＳｇ２は、表示器５５の表示面５５ｃを視認可能に露出させる。
　以上のように、窓セグメントＳｇ２は、表示面５５ｃを隠したり、表示面５５ｃを露出させたりするシャッターとして機能する。 The liquid crystal display panel 57 is provided with one segment electrode (not shown) corresponding to the window segment Sg2. When current is not applied between the segment electrodes and the scanning electrodes (not shown), the alignment direction of the liquid crystal molecules in the liquid crystal layer 57c does not change, and the window segment Sg2 becomes light non-transmissive and turns black. Therefore, at this time, the display surface 55c of the display 55 is hidden by the window segment Sg2.
On the other hand, under the control of the control unit 80, the alignment direction of the liquid crystal molecules of the liquid crystal layer 57c is changed by energizing between the segment electrode and the scanning electrode (not shown), and the window segment Sg2 is light opaque. It switches from the state to the light transmission state. Thereby, the window segment Sg2 exposes the display surface 55c of the display 55 so as to be visible.
As described above, the window segment Sg2 functions as a shutter that hides the display surface 55c or exposes the display surface 55c.
　第１の非重複領域５７Ｌは、図４に示すように、重複領域５７Ｏよりも左側に位置し、導光体５３Ｌの出光面５３ｄに重なる。第２の非重複領域５７Ｒは、重複領域５７Ｏよりも右側に位置し、導光体５３Ｒの出光面５３ｄに重なる。第１及び第２の非重複領域５７Ｌ，５７Ｒには、図３に示すように、数字、図形又は記号を表示可能な複数の表示セグメントＳｇ１が設けられる。例えば、１つのアラビア数字は７つの表示セグメントＳｇ１により表される。液晶表示パネル５７には、複数の表示セグメントＳｇ１に対応する数及び形状のセグメント電極が設けられている。このセグメント電極と図示しない走査電極との間が通電されていないとき、液晶層５７ｃの液晶分子の配向方向が変化せず、表示セグメントＳｇ１は光不透過状態となり黒色となる。制御部８０による制御のもと、このセグメント電極と図示しない走査電極との間が通電されることにより、液晶層５７ｃの液晶分子の配向方向が変化して、表示セグメントＳｇ１は光透過状態となる。複数の表示セグメントＳｇ１のうち所定の組み合わせが光透過状態となることで、光源２３からの光を透過させて、白色で表示される。これにより、第１及び第２の非重複領域５７Ｌ，５７Ｒには、シフトポジション、積算走行距離、時刻、燃費等の各種車両情報が表示される。
　液晶表示パネル５７は、車両の電源がオフされたとき等の制御部８０による通電が行われない場合、液晶表示パネル５７の全域にわたって光不透過状態となることで黒色となる。 As shown in FIG. 4, the first non-overlapping area 57L is located on the left side of the overlapping area 57O and overlaps the light exit surface 53d of the light guide 53L. The second non-overlapping area 57R is located on the right side of the overlapping area 57O and overlaps the light exit surface 53d of the light guide 53R. As shown in FIG. 3, the first and second non-overlapping areas 57L and 57R are provided with a plurality of display segments Sg1 capable of displaying numbers, figures or symbols. For example, one Arabic numeral is represented by seven display segments Sg1. The liquid crystal display panel 57 is provided with segment electrodes of the number and shape corresponding to the plurality of display segments Sg1. When the segment electrode and the scanning electrode (not shown) are not energized, the alignment direction of the liquid crystal molecules in the liquid crystal layer 57c does not change, and the display segment Sg1 becomes light non-transmissive and turns black. Under the control of the control unit 80, when the segment electrode and the scanning electrode (not shown) are energized, the alignment direction of the liquid crystal molecules of the liquid crystal layer 57c is changed, and the display segment Sg1 becomes a light transmitting state. . When a predetermined combination of the plurality of display segments Sg1 is in the light transmitting state, light from the light source 23 is transmitted and displayed in white. As a result, various vehicle information such as the shift position, the integrated travel distance, the time, the fuel consumption and the like are displayed in the first and second non-overlapping areas 57L and 57R.
The liquid crystal display panel 57 becomes black because the entire area of the liquid crystal display panel 57 is in a light non-transmissive state when the control unit 80 does not energize the vehicle, for example, when the power of the vehicle is turned off.
　トリム５９は、図３に示すように、ＡＢＳ樹脂等の合成樹脂により、左右方向に長く、両端が外側に向かって膨らみ、円弧状の目盛り１１Ｌ，１１Ｒと相似形状の円弧状をなす略長方形枠状に形成され、液晶表示パネル５７の外形全周を覆い囲む。トリム５９は、ユニットケース５１にその前方から嵌合する。トリム５９は、表面がシルバー色に塗装されている。 The trim 59, as shown in FIG. 3, is made of synthetic resin such as ABS resin, is long in the left-right direction, and both ends are bulged outward, and a substantially rectangular frame having an arc shape similar to arc-shaped graduations 11L and 11R. The liquid crystal display panel 57 covers the entire outer periphery of the liquid crystal display panel 57. The trim 59 is fitted to the unit case 51 from the front. The surface of the trim 59 is painted silver.
　レンズ５８は、透光性のポリカーボネートシートにより、左右方向に長く、両端が外側に向かって膨らむ円弧状をなす略長方形板状に形成される。レンズ５８は、拡散板５６の前面に位置し、レンズ５８の周縁部はトリム５９により液晶表示パネル５７に向けて押さえつけられる。レンズ５８は、後面に遮光層が形成されている。遮光層は、液晶表示パネル５７の表示セグメントＳｇ１及び窓セグメントＳｇ２が視認可能なように形成される透視部５８ａを有する。透視部５８ａは、トリム５９の相似形状で形成されている。 The lens 58 is formed of a translucent polycarbonate sheet in a substantially rectangular plate shape that is long in the left-right direction and has an arc shape whose both ends bulge outward. The lens 58 is located in front of the diffusion plate 56, and the peripheral portion of the lens 58 is pressed by the trim 59 toward the liquid crystal display panel 57. The lens 58 has a light shielding layer formed on the rear surface. The light shielding layer has a see-through portion 58a formed so that the display segment Sg1 and the window segment Sg2 of the liquid crystal display panel 57 can be viewed. The see-through portion 58 a is formed in a similar shape of the trim 59.
　制御部８０は、ＣＰＵ（Central Processing Unit）、画像処理ＩＣ（Integrated Circuit）、ＲＯＭ（Read Only Memory）、ＲＡＭ（Random Access Memory）等を含むマイクロコンピュータからなる。制御部８０は、表示器５５、光源２３、駆動部２２及び液晶表示パネル５７を制御する。 The control unit 80 is a microcomputer including a central processing unit (CPU), an image processing integrated circuit (IC), a read only memory (ROM), a random access memory (RAM), and the like. The control unit 80 controls the display 55, the light source 23, the drive unit 22, and the liquid crystal display panel 57.
　次に、制御部８０の処理手順の一例について説明する。
　例えば、車両の電源がオンされたとき、制御部８０は、表示器５５の表示面５５ｃに画像（例えばオープニング画像）を表示するとともに、窓セグメントＳｇ２を光不透過状態から光透過状態に切り替える。なお、表示面５５ｃへの画像表示処理と窓セグメントＳｇ２の光透過状態への切り替え処理は、同時に行われてもよいし、何れかが先に行われてもよい。
　その後、制御部８０は、表示面５５ｃに経路案内情報等を表示する。また、制御部８０は、導光体５３Ｌ，５３Ｒに対応する光源２３を点灯させつつ、複数の表示セグメントＳｇ１のうち所定の組み合わせを光不透過状態から光透過状態に切り替える。これにより、第１及び第２の非重複領域５７Ｌ，５７Ｒには、シフトポジション、積算走行距離、時刻、燃費等の各種車両情報が表示される。
　車両の電源がオフされたとき、制御部８０は、窓セグメントＳｇ２及び複数の表示セグメントＳｇ１を光透過状態から光不透過状態に切り替える。これと同時に、制御部８０は、光源２３を消灯させつつ、表示器５５の表示面５５ｃに表示される画像を消す。 Next, an example of the processing procedure of the control unit 80 will be described.
For example, when the power of the vehicle is turned on, the control unit 80 displays an image (for example, an opening image) on the display surface 55c of the display 55 and switches the window segment Sg2 from the light non-transmissive state to the light transmissive state. Note that the image display processing on the display surface 55c and the switching processing to the light transmission state of the window segment Sg2 may be performed simultaneously, or either one may be performed first.
Thereafter, the control unit 80 displays route guidance information and the like on the display surface 55c. Further, the control unit 80 switches a predetermined combination of the plurality of display segments Sg1 from the light non-transmissive state to the light transmissive state while lighting the light sources 23 corresponding to the light guides 53L and 53R. As a result, various vehicle information such as the shift position, the integrated travel distance, the time, the fuel consumption and the like are displayed in the first and second non-overlapping areas 57L and 57R.
When the power of the vehicle is turned off, the control unit 80 switches the window segment Sg2 and the plurality of display segments Sg1 from the light transmission state to the light non-transmission state. At the same time, the control unit 80 turns off the light source 23 and turns off the image displayed on the display surface 55 c of the display 55.
　（効果）
　以上、説明した一実施形態によれば、以下の効果を奏する。 (effect)
According to the embodiment described above, the following effects can be obtained.
　（１）車両用表示装置１は、画像を表示する表示面５５ｃを含む表示器５５と、視認者から見て、表示面５５ｃに重なる重複領域５７Ｏ及び表示面５５ｃに重ならない第１及び第２の非重複領域５７Ｌ，５７Ｒを有し、光透過状態及び光不透過状態の何れかに設定される複数のセグメントＳｇ１，Ｓｇ２を含む液晶表示パネル５７と、を備える。複数のセグメントＳｇ１，Ｓｇ２は、液晶表示パネル５７の重複領域５７Ｏに形成され、光透過状態に設定されることにより表示面５５ｃを視認可能とする窓セグメントＳｇ２と、液晶表示パネル５７の第１及び第２の非重複領域５７Ｌ，５７Ｒに形成され、光透過状態に設定されることにより情報が表示される複数の表示セグメントＳｇ１と、を含む。
　この構成によれば、窓セグメントＳｇ２が光透過状態に設定されることにより露出する表示器５５の表示面５５ｃに表示される情報と、複数の表示セグメントＳｇ１のうち何れかが光透過状態に設定されることにより表示される情報と、の何れもが単一の液晶表示パネル５７を介して視認される。よって、複数の方式により情報が表示される場合であっても、発光輝度の低減を防止することができ、視認性を向上させることができる。
　また、仮に、液晶表示パネルを表示器に重ねない構成が採用された場合には、表示器の表示面に隣り合う２つの液晶表示パネルが必要となるため、一体感が損なわれるだけでなく、部品点数が増え、液晶表示パネルと回路基板との接続も複雑となり、組み立てが煩雑となる問題がある。この点、上記構成では、単一の液晶表示パネル５７が採用されることにより、これら問題を解消できる。 (1) The display device 1 for a vehicle includes the display 55 including the display surface 55c for displaying an image, and the first and second display regions 55 that overlap the display surface 55c and the display surface 55c when viewed from the viewer. And a liquid crystal display panel 57 including a plurality of segments Sg1 and Sg2 set in either the light transmitting state or the light non-transmitting state. The plurality of segments Sg1 and Sg2 are formed in the overlapping region 57O of the liquid crystal display panel 57, and are set in the light transmission state to make the display surface 55c visible. And a plurality of display segments Sg1 formed in the second non-overlapping regions 57L and 57R and displaying information by being set in the light transmission state.
According to this configuration, the information displayed on the display surface 55c of the display 55 exposed when the window segment Sg2 is set to the light transmission state, and any one of the plurality of display segments Sg1 is set to the light transmission state The information displayed by being displayed is visually recognized through the single liquid crystal display panel 57. Therefore, even when information is displayed by a plurality of methods, reduction in light emission luminance can be prevented, and visibility can be improved.
In addition, if a configuration in which the liquid crystal display panel is not superimposed on the display is adopted, two liquid crystal display panels adjacent to the display surface of the display are required, which not only impairs the sense of unity, The number of parts increases, the connection between the liquid crystal display panel and the circuit board becomes complicated, and the assembly becomes complicated. In this respect, in the above configuration, the adoption of the single liquid crystal display panel 57 can solve these problems.
　（２）液晶表示パネル５７は、表示器５５に近い位置に設けられる偏光板５７ｂを備える。表示器５５は、液晶表示パネル５７に近い位置に設けられる偏光板５５ａ１を備える。液晶表示パネル５７の偏光板５７ｂの透過軸は、表示器５５の偏光板５５ａ１の透過軸と略一致する角度に設定される。
　この構成によれば、表示器５５からの画像光の光強度が液晶表示パネル５７にて減衰することが抑制される。よって、車両用表示装置１としての一体感を出すことができ、意匠性を向上させることができる。 (2) The liquid crystal display panel 57 includes the polarizing plate 57 b provided at a position close to the display 55. The display 55 includes a polarizing plate 55 a 1 provided at a position close to the liquid crystal display panel 57. The transmission axis of the polarizing plate 57 b of the liquid crystal display panel 57 is set at an angle substantially coincident with the transmission axis of the polarizing plate 55 a 1 of the display 55.
According to this configuration, the attenuation of the light intensity of the image light from the display 55 by the liquid crystal display panel 57 is suppressed. Therefore, a sense of unity as the display device 1 for a vehicle can be obtained, and the design can be improved.
　（３）表示器５５は、表示面５５ｃの周囲を囲む枠部５５ｂを備え、窓セグメントＳｇ２は、視認者から見て、表示面５５ｃを含みつつ、枠部５５ｂを含まない範囲に形成される。
　この構成によれば、窓セグメントＳｇ２が光透過状態に設定されたとき、運転者によって枠部５５ｂが見えることが抑制される。よって、車両用表示装置１としての一体感が損なわれることが抑制され、車両用表示装置１における意匠性を向上させることができる。 (3) The display 55 includes a frame 55b surrounding the periphery of the display surface 55c, and the window segment Sg2 is formed in a range not including the frame 55b while including the display surface 55c as viewed from the viewer. .
According to this configuration, when the window segment Sg2 is set to the light transmission state, the driver can be prevented from seeing the frame 55b. Therefore, it is suppressed that the sense of unity as the display apparatus 1 for vehicles is impaired, and the designability in the display apparatus 1 for vehicles can be improved.
　（４）車両用表示装置１は、液晶表示パネル５７の第１及び第２の非重複領域５７Ｌ，５７Ｒを照明する光源２３と、意匠を表す文字板１０と、表示器５５及び液晶表示パネル５７を含む表示器ユニット５０と、を備える。表示器ユニット５０は、文字板１０から視認者に近い方へ隙間Ｓを空けて位置する。
　この構成によれば、表示器ユニット５０を文字板１０に対して浮かすことができる。よって、車両用表示装置１において、より斬新なデザインを実現することができ、意匠性を向上させることができる。 (4) The vehicle display device 1 includes the light source 23 for illuminating the first and second non-overlapping areas 57L and 57R of the liquid crystal display panel 57, the dial 10 representing the design, the display 55, and the liquid crystal display panel 57. And a display unit 50 including: The display unit 50 is positioned with a gap S from the dial 10 toward the viewer.
According to this configuration, the display unit 50 can be floated with respect to the dial 10. Therefore, a more novel design can be realized in the display device 1 for a vehicle, and the design can be improved.
　（５）車両用表示装置１は、意匠である目盛り１１Ｌ，１１Ｒに対して移動する指針２１，３１を備える。指針２１，３１の回転中心部２１ａ，３１ａは、隙間Ｓに位置する。
　この構成によれば、指針２１，３１のうち回転中心部２１ａ，３１ａが表示器ユニット５０により隠され、指針２１，３１の先端側のみ表示器ユニット５０から突出する。これにより、車両用表示装置１において、より斬新なデザインを実現することができ、意匠性を向上させることができる。 (5) The display apparatus 1 for vehicles is provided with the pointer | guides 21 and 31 which move with respect to the graduations 11L and 11R which are designs. The rotation center portions 21 a and 31 a of the hands 21 and 31 are located in the gap S.
According to this configuration, the rotation center portions 21a and 31a of the hands 21 and 31 are hidden by the display unit 50, and only the tip end sides of the hands 21 and 31 protrude from the display unit 50. Thereby, in the display device 1 for vehicles, a more novel design can be realized, and the design can be improved.
　（６）液晶表示パネル５７は、ＶＡ型であり、かつノーマリブラック型である。
　この構成によれば、液晶表示パネル５７へ通電されていないとき、液晶表示パネル５７はその全域が黒色で表示される。よって、この際に、運転者から液晶表示パネル５７を介して表示器５５の表示面５５ｃが見えることが抑制される。よって、車両用表示装置１としての一体感を出すことができ、意匠性を向上させることができる。
　また、仮に、液晶表示パネルがノーマリホワイト型である場合には、液晶表示パネルへの無通電時に液晶表示パネルが光源又は表示器から光を受けると、この液晶表示パネルは光源からの光を透過させるため、液晶表示パネルのうち光を受けた領域が白色で表示され、見栄えが悪くなる。
　この点、本実施形態のように、ノーマリブラック型の液晶表示パネル５７では、液晶表示パネル５７への無通電時には、液晶表示パネル５７は光源２３又は表示器５５からの光を透過させないので、この場合であっても見栄えが悪くなることが抑制される。
　さらに、ＶＡ型の液晶表示パネル５７は、ＴＮ(Twisted Nematic)型の液晶表示パネルに比べて、外光透過率が低い。よって、ＶＡ型の液晶表示パネル５７が採用されることにより、表示器５５の表示面５５ｃでの外光反射が低減される。よって、運転者により表示面５５ｃの存在が視認されづらくなり、表示器ユニット５０ひいては車両用表示装置１の一体感を出すことができる。また、これに伴い、表示器５５の表示面５５ｃにおいて、ＡＲ（Anti-Reflective）処理又はオプティカルボンディング等の外光対策が不要となる。
　さらに、ＶＡ型の液晶表示パネル５７は、背景抜けが比較的に少ないため、夜間においても表示器ユニット５０ひいては車両用表示装置１の一体感を出すことができる。 (6) The liquid crystal display panel 57 is a VA type and a normally black type.
According to this configuration, when the liquid crystal display panel 57 is not energized, the entire area of the liquid crystal display panel 57 is displayed in black. Therefore, at this time, the driver can be prevented from seeing the display surface 55c of the display 55 via the liquid crystal display panel 57. Therefore, a sense of unity as the display device 1 for a vehicle can be obtained, and the design can be improved.
Also, if the liquid crystal display panel is normally white type, if the liquid crystal display panel receives light from the light source or the display when the liquid crystal display panel is not energized, the liquid crystal display panel receives light from the light source. Since the light is transmitted, the light receiving area of the liquid crystal display panel is displayed in white, and the appearance is deteriorated.
In this respect, as in the present embodiment, in the normally black liquid crystal display panel 57, the liquid crystal display panel 57 does not transmit light from the light source 23 or the display 55 when the liquid crystal display panel 57 is not energized. Even in this case, deterioration in appearance is suppressed.
Furthermore, the VA type liquid crystal display panel 57 has lower external light transmittance than a TN (Twisted Nematic) type liquid crystal display panel. Therefore, the use of the VA liquid crystal display panel 57 reduces external light reflection on the display surface 55 c of the display 55. Therefore, it becomes difficult for a driver | operator to visually recognize presence of the display surface 55c, and the sense of unity of the display unit 50 and by extension, the display apparatus 1 for vehicles can be exhibited. Further, along with this, on the display surface 55c of the display 55, measures against external light such as AR (Anti-Reflective) processing or optical bonding become unnecessary.
Further, since the VA type liquid crystal display panel 57 has a relatively small background drop, the display unit 50 and hence the sense of integration of the display device 1 for a vehicle can be exhibited even at night.
　（７）液晶表示パネル５７は、運転者から見て上下方向（第１方向）に延びる幅Ｗが左右方向（第２方向）に進むにつれて変化するように形成される。
　この構成によれば、液晶表示パネル５７の外形を異形とすることで、斬新なデザインの表示器ユニット５０ひいては車両用表示装置１を実現することができる。
　一般的に、液晶表示パネル５７は、表示器５５に比べて外形の変更が容易かつ安価で可能なため、所望の表示器ユニット５０の外形を容易かつ安価に実現することができる。 (7) The liquid crystal display panel 57 is formed so that the width W extending in the vertical direction (first direction) as viewed from the driver changes as it progresses in the horizontal direction (second direction).
According to this configuration, by forming the liquid crystal display panel 57 into a different shape, the display unit 50 with a novel design and thus the display device 1 for a vehicle can be realized.
Generally, the liquid crystal display panel 57 can be easily and inexpensively changed in outline as compared to the display 55, so that the desired outline of the display unit 50 can be easily and inexpensively realized.
（変形例）
　なお、上記実施形態は、これを適宜変更した以下の形態にて実施することができる。 (Modification)
In addition, the said embodiment can be implemented in the following forms which changed this suitably.
　上記実施形態においては、液晶表示パネル５７は、ノーマリブラック型であったが、ノーマリホワイト型であってもよい。また、上記実施形態においては、液晶表示パネル５７は、ＶＡ型であったが、ＩＰＳ（In Plane Switching）型又はＴＮ型であってもよい。 Although the liquid crystal display panel 57 is of the normally black type in the above embodiment, it may be of the normally white type. Further, in the above-described embodiment, the liquid crystal display panel 57 is a VA type, but may be an IPS (In Plane Switching) type or a TN type.
　上記実施形態における液晶表示パネル５７の形状は、適宜変更可能であり、円形、楕円形、八角形以外の多角形等であってもよい。また、液晶表示パネル５７の一部が円弧状をなしていてもよい。 The shape of the liquid crystal display panel 57 in the above embodiment can be changed as appropriate, and may be a circle, an ellipse, a polygon other than octagon, or the like. In addition, a part of the liquid crystal display panel 57 may have an arc shape.
　上記実施形態においては、表示器ユニット５０は、光源２３からの光を液晶表示パネル５７に導く導光体５３Ｌ，５３Ｒを備えていたが、導光体５３Ｌ，５３Ｒを省略してもよい。この場合、光源２３からの光は直接に液晶表示パネル５７に照射されてもよい。 In the above embodiment, the display unit 50 includes the light guides 53L and 53R for guiding the light from the light source 23 to the liquid crystal display panel 57. However, the light guides 53L and 53R may be omitted. In this case, the light from the light source 23 may be directly irradiated to the liquid crystal display panel 57.
　上記実施形態においては、窓セグメントＳｇ２は、単一のセグメントにより構成されていたが、複数のセグメントにより構成されてもよい。この場合には、窓セグメントＳｇ２を構成する複数のセグメントのうち一部を光透過状態とし、残りを光不透過状態とすることで、表示面５５ｃの一部を露出させ、表示面５５ｃの残りの部分を隠すことも可能である。 In the above-mentioned embodiment, although window segment Sg2 was constituted by a single segment, it may be constituted by a plurality of segments. In this case, a part of the display surface 55c is exposed by making a part of the plurality of segments constituting the window segment Sg2 into a light transmitting state and making the rest into a light non-transmitting state, and the remaining part of the display surface 55c It is also possible to hide parts of
　上記実施形態においては、表示器５５は、液晶型の表示器であったが、これに代えて又はこれとともに、有機ＥＬ（Electro-Luminescence）型の表示器が設けられていてもよい。 In the above embodiment, the display 55 is a liquid crystal type display, but instead of or in addition to this, an organic EL (Electro-Luminescence) type display may be provided.
　上記実施形態における第１及び第２の指針式計器３０Ｌ，３０Ｒのうち少なくとも何れか一方が省略されてもよい。また、車両用表示装置１は、表示器ユニット５０のみから構成されてもよい。
　また、上記実施形態における第１及び第２の非重複領域５７Ｌ，５７Ｒのうち少なくとも何れか一方が省略されてもよい。また、重複領域５７Ｏの全周囲に非重複領域が形成され、その非重複領域に各種車両情報が表示されてもよい。 At least one of the first and second pointer- type meters 30L and 30R in the above embodiment may be omitted. In addition, the display device 1 for vehicle may be configured only by the display unit 50.
Further, at least one of the first and second non-overlapping regions 57L and 57R in the above embodiment may be omitted. In addition, a non-overlapping area may be formed all around the overlapping area 57O, and various types of vehicle information may be displayed in the non-overlapping area.
　上記実施形態においては、車両用表示装置１は、車両に搭載されていたが、車両に限らず、船舶、飛行機等のその他乗り物に搭載されてもよい。さらに、乗り物以外の機器に搭載されてもよい。 In the said embodiment, although the display apparatus 1 for vehicles was mounted in the vehicle, it may be mounted not only in a vehicle but in other vehicles, such as a ship and an airplane. Furthermore, they may be mounted on devices other than vehicles.
１　車両用表示装置
１０　文字板
１１Ｌ，１１Ｒ　目盛り
２０　回路基板
２１，３１　指針
２１ａ，３１ａ　回転中心部
２２　駆動部
２３　光源
４０　中ケース
４１　ユニット収容部
４５　下ケース
５０　表示器ユニット
５１　ユニットケース
５１Ｌ，５１Ｒ　導光体収容部
５１ａ　モジュール収容部
５１ｂ　土台部
５１ｃ　導光筒
５１ｄ　出光板収容部
５２Ｌ，５２Ｒ　反射板
５３Ｌ，５３Ｒ　導光体
５３ａ　入光板部
５３ｂ　出光板部
５３ｃ　受光面
５３ｄ　出光面
５５　表示器
５５ａ　液晶パネル
５５ｂ　枠部
５５ｃ　表示面
５５ａ１，５５ａ２，５７ａ，５７ｂ　偏光板
５５ａ３，５７ｃ　液晶層
５６　拡散板
５７　液晶表示パネル
５７Ｌ　第１の非重複領域
５７Ｏ　重複領域
５７Ｒ　第２の非重複領域
５８　レンズ
５９　トリム
８０　制御部
Ｓ　隙間
Ｓｇ１　表示セグメント
Ｓｇ２　窓セグメント DESCRIPTION OF SYMBOLS 1 Display device for vehicles 10 Dial 11L, 11R Scale 20 Circuit board 21, 31 Pointer 21a, 31a Rotation center 22 Drive 23 Light source 40 Middle case 41 Unit housing 45 Lower case 50 Display unit 51 Unit case 51L, 51R Light guide housing 51a Module housing 51b Base 51c Light guide cylinder 51d Light output plate storage 52L, 52R Reflector 53L, 53R Light guide 53a Light input plate 53b Light output plate 53c Light receiving surface 53d Light output surface 55 Display 55a Liquid crystal panel 55b Frame 55c Display surface 55a1, 55a2, 57a, 57b Polarizer 55a3, 57c Liquid crystal layer 56 Diffusion plate 57 Liquid crystal display panel 57L First non-overlap area 57O Overlap area 57R Second non-overlap area 58 Lens 59 Trim 80 Controller S Clearance Sg1 Display Segment Sg2 Window Seg Cement

Claims (7)

  1. 　画像を表示する表示面を含む表示器と、
    　視認者から見て、前記表示面に重なる重複領域及び前記表示面に重ならない非重複領域を有し、光透過状態及び光不透過状態の何れかに設定される複数のセグメントを含む液晶表示パネルと、を備え、
    　前記複数のセグメントは、
    　前記液晶表示パネルの前記重複領域に形成され、前記光透過状態に設定されることにより前記表示面を視認可能とする窓セグメントと、
    　前記液晶表示パネルの前記非重複領域に形成され、前記光透過状態に設定されることにより情報が表示される表示セグメントと、を含む、
    　表示装置。     An indicator including a display surface for displaying an image;
    A liquid crystal display panel including a plurality of segments set to either a light transmitting state or a light non-transmitting state, having an overlapping area overlapping the display surface and a non-overlapping area not overlapping the display surface when viewed from a viewer And
    The plurality of segments are
    A window segment which is formed in the overlapping area of the liquid crystal display panel and which enables the display surface to be viewed by being set in the light transmission state;
    A display segment formed in the non-overlapping region of the liquid crystal display panel and displaying information by being set to the light transmission state;
    Display device.
  2. 　前記液晶表示パネルは、前記表示器に近い位置に設けられる偏光板を備え、
    　前記表示器は、前記液晶表示パネルに近い位置に設けられる偏光板を備え、
    　前記液晶表示パネルの前記偏光板の透過軸は、前記表示器の前記偏光板の透過軸と略一致する角度に設定される、
    　請求項１に記載の表示装置。     The liquid crystal display panel includes a polarizing plate provided at a position close to the display,
    The display includes a polarizing plate provided at a position close to the liquid crystal display panel,
    The transmission axis of the polarizing plate of the liquid crystal display panel is set at an angle substantially coincident with the transmission axis of the polarizing plate of the display.
    The display device according to claim 1.
  3. 　前記表示器は、前記表示面の周囲を囲む枠部を備え、
    　前記窓セグメントは、視認者から見て、前記表示面を含みつつ、前記枠部を含まない範囲に形成される、
    　請求項１に記載の表示装置。     The display includes a frame surrounding the periphery of the display surface,
    The window segment is formed in a range that includes the display surface but does not include the frame portion as viewed from the viewer.
    The display device according to claim 1.
  4. 　前記表示装置は、
    　前記液晶表示パネルの前記非重複領域を照明する光源と、
    　意匠を表す文字板と、
    　前記表示器及び前記液晶表示パネルを含む表示器ユニットと、を備え、
    　前記表示器ユニットは、前記文字板に対して視認者に近い方へ隙間を空けて位置する、
    　請求項１に記載の表示装置。     The display device is
    A light source for illuminating the non-overlapping area of the liquid crystal display panel;
    A dial representing a design,
    A display unit including the display and the liquid crystal display panel;
    The display unit is positioned with a gap toward the viewer relative to the dial plate.
    The display device according to claim 1.
  5. 　前記表示装置は、前記意匠である目盛りに対して移動する指針を備え、
    　前記指針の回転中心部は、前記隙間に位置する、
    　請求項４に記載の表示装置。     The display device includes a pointer that moves relative to a scale that is the design;
    The rotational center of the pointer is located in the gap,
    The display device according to claim 4.
  6. 　前記液晶表示パネルは、ＶＡ型であり、かつノーマリブラック型である、
    　請求項１に記載の表示装置。     The liquid crystal display panel is a VA type and a normally black type.
    The display device according to claim 1.
  7. 　前記液晶表示パネルは、視認者から見て第１方向に延びる幅が前記第１方向に直交する第２方向に進むにつれて変化するように形成される、
    　請求項１から６の何れか一項に記載の表示装置。     The liquid crystal display panel is formed such that a width extending in a first direction as viewed from a viewer changes as it travels in a second direction orthogonal to the first direction.
    The display apparatus as described in any one of Claims 1-6.
PCT/JP2018/031482 2017-09-12 2018-08-27 Display device WO2019054162A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0610975U (en) * 1991-11-13 1994-02-10 スタンレー電気株式会社 Liquid crystal display
JPH10329581A (en) * 1997-05-30 1998-12-15 Nippon Seiki Co Ltd Instrument device
JP2009265070A (en) * 2008-04-29 2009-11-12 Hyundai Motor Co Ltd Vehicle instrument panel for digital integrated information
US20150097818A1 (en) * 2013-10-03 2015-04-09 Delphi Technologies, Inc. Assembly and method to align displayed images to an overlaying applique
JP2015219117A (en) * 2014-05-19 2015-12-07 矢崎総業株式会社 Liquid display device and vehicle instrument

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0610975U (en) * 1991-11-13 1994-02-10 スタンレー電気株式会社 Liquid crystal display
JPH10329581A (en) * 1997-05-30 1998-12-15 Nippon Seiki Co Ltd Instrument device
JP2009265070A (en) * 2008-04-29 2009-11-12 Hyundai Motor Co Ltd Vehicle instrument panel for digital integrated information
US20150097818A1 (en) * 2013-10-03 2015-04-09 Delphi Technologies, Inc. Assembly and method to align displayed images to an overlaying applique
JP2015219117A (en) * 2014-05-19 2015-12-07 矢崎総業株式会社 Liquid display device and vehicle instrument

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