JP2015219110A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device with which it is possible to make the display of a measured value display part provided in a display board and of various information displayed on a display panel have a sense of unity.SOLUTION: Provided is a display device in which a display board 14 having a measured value display part 14a indicated by a needle 11 and a display panel 41 having a display part 41a for displaying prescribed information (various information) are juxtaposed, the display board 14 being composed of a panel element in which the measured value display part 14a and a background part 14c for forming the background of the measured value display part 14a are formed on a light-permeable substrate 14b that is the mother material of the display board 14, where the display board 14 is located within the thickness range T of the display panel 41 in a side view of the display device.

Description

  The present invention relates to a display device mounted on various vehicles such as an automobile.

  Conventionally, as this type of display device, for example, the one described in Patent Document 1 below is known. The display device described in Patent Document 1 includes a vehicle instrument installed in front of a driver's seat of a vehicle, and forms a measurement value display unit such as a scale indicated by a pointer and a background of the measurement value display unit. And a liquid crystal display panel (display panel) having a display area for displaying various information (predetermined information) such as mileage information of the vehicle, and a display plate formed on a light-transmitting substrate. The liquid crystal display panel is arranged behind the display plate so as to face the substantially rectangular opening formed in the plate.

JP 2010-181394 A

  However, in the case of the display device described in Patent Document 1, since the liquid crystal display panel (display panel) is disposed on the back side of the display plate so as to face the opening formed in the display plate, Various types of information such as travel distance information displayed in the display area are displayed at a position deeper than the formation position of the measurement value display section such as a scale on the display board (a position one step lower).

As a result, when paying attention to various information displayed on the liquid crystal display panel and the measurement value display section provided on the display board, the display of both is not uniform, especially when the liquid crystal display panel is enlarged. In that case, the lack of a unified sense of the above-mentioned display became remarkable, and there was room for further improvement.
Therefore, in order to address the above-described problems, the present invention provides a display device capable of giving a sense of unity to the display of the measurement value display unit provided on the display board and various information displayed on the display panel. It is for the purpose of provision.

  The present invention relates to a display device in which a display panel having a measurement value display unit indicated by a pointer and a display panel having a display unit for displaying predetermined information are arranged in parallel, and the display device is viewed from the side. When viewed from the side, the display panel is located within a thickness range of the display panel.

  Further, in the present invention, the display board includes a panel body in which the measurement value display unit and a background part that forms a background of the measurement value display unit are formed on a light-transmitting substrate as a base material, The display panel includes a non-display area which is an area other than the display section, and the background portion has a color tone similar to that of the cover portion covering the non-display area.

  Further, according to the present invention, the display panel is a thin film transistor type liquid crystal display panel, and a liquid crystal background portion provided in the display panel has a color tone of the background portion and the color tone to form a background of the display portion. The color is similar to the color tone of the cover.

  ADVANTAGE OF THE INVENTION According to this invention, the initial objective can be achieved and the display apparatus which can give a feeling of unity to the display of the measured value display part provided in a display board, and the various information displayed on a display panel can be provided. .

1 is a front view of a display device according to an embodiment of the present invention. AA sectional drawing of FIG. Sectional drawing of the indicator by the embodiment. The figure which shows typically the positional relationship of a display board and a display panel when the display apparatus by the embodiment is seen from the side. The figure which shows typically the positional relationship of a display board and a display panel when the display apparatus by the modification of the embodiment is seen from the side. The figure which shows typically the positional relationship of a display board and a display panel when the display apparatus by the other modification of the embodiment is seen from the side.

  Hereinafter, an embodiment in which the present invention is applied to a vehicle instrument mounted on a vehicle will be described with reference to FIGS.

  In FIG. 1, a vehicle meter D as a display device according to the present embodiment includes a pointer-type display unit 10 including a speedometer that displays the travel speed of a vehicle located on the left side in FIG. 1 has a display unit 20 located on the right side and a housing 30 that forms an exterior case of a vehicle instrument, and the pointer type display unit 10 and the display unit 20 are arranged in parallel. Yes.

  As shown in FIG. 2, the pointer-type display unit 10 that displays the traveling speed (vehicle information) includes a pointer 11 that extends linearly, a driving device 12 that includes an instrument movement that operates the pointer 11, and the driving device 12. And a display board 14 that is positioned between the pointer 11 and the wiring board 13 and has a measurement value display portion 14a such as a scale indicated by the pointer 11, A plurality of light emitting elements 15 corresponding to the pointers 11 and the display board 14 are mounted on the wiring board 13 provided on the back side of the display board 14.

  In this case, the pointer 11 is formed of a light transmissive material that can receive and emit light when the light emitting element 15 is turned on, and the measured value display portion 14a of the display panel 14 is irradiated with light when the light emitting element 15 is turned on. It is made of a light transmissive material so as to emit light upon receiving the light.

  The wiring board 13 is formed of a hard circuit board in which a conductive path as a wiring pattern is provided on a glass epoxy base material, for example, and is attached to the driving device 12, the light emitting element 15, the driving device 12, the light emitting element 15, and the display unit 20. A control means (not shown) comprising a microcomputer for controlling a display panel, which will be described later, is provided and various electronic components (not shown) such as resistors and capacitors are conductively connected to the conductive path.

  The display board 14 is a thin plate-like panel body in which the above-described measurement value display part 14a and a background part 14c forming the background of the measurement value display part 14a are printed on a light-transmitting substrate 14b as a base material. The measurement value display portion 14a and the background portion 14c are formed on the surface of the substrate 14b by using means such as screen printing.

  For example, the measured value display portion 14a is printed on the surface of the substrate 14b using white light-transmitting ink, and the background portion 14c is printed on the surface of the substrate 14b using black light-shielding ink. Here, the thickness S of the substrate 14b is about 1 millimeter.

  In addition, a case body 16 formed of, for example, a white synthetic resin material is provided on the front side of the wiring board 13. The case body 16 houses the light emitting element 15 and guides the light thereof. 11 and a plurality of illumination chambers for guiding to the display board 14 side are formed. The case body 16 has a function as a holding body for holding the display panel 14. In addition, the case body 16 holds not only the display plate 14 but also a second see-through portion (described later) located on the display unit 20 side.

  Further, a substantially flat plate-like first see-through portion 17 formed of a light-transmitting synthetic resin material is provided on the front side of the pointer 11 and the display plate 14, and this first see-through portion is provided. 17 is disposed in the front side opening so as to close a front side opening, which will be described later, provided in the housing 30. A viewer (vehicle user) who is viewing the vehicle meter D can see through (view) the vehicle information through the first see-through unit 17.

  The display unit 20 includes a display 40 and a substantially flat second see-through unit 50 that covers the front side of the display 40.

  As shown in FIG. 3, the display 40 includes a display panel 41 that displays predetermined information (various information), a source line drive circuit (not shown) that drives a source line (signal line) of the display panel 41, A gate line driving circuit (not shown) for driving gate lines (scanning lines) of the display panel 41, a light guide 42a, a light source 42b, a flexible wiring board 42c, and the like, are used to guide illumination light to the display panel 41. The illumination means 42, the resin case 43 made of a substantially flat white resin holding the display panel 41 and the light guide 42a, the front frame 44 and the rear frame 45 constitute an outer case of the display 40. The timing of the source line driving circuit and the gate line driving circuit based on a frame body 46 made of a conductive material and a command signal from the control means mounted on the wiring board 13. A timing controller for generating various timing signals for controlling (not shown) or the like and a circuit board 47 mounted.

  In this case, the frame body 46 composed of the front frame 44 and the rear frame 45 paired with the front frame 44 includes the display panel 41, the light guide 42a, the light source 42b, the resin case 43, and the like. The circuit board 47 is housed (accommodated), and is fixed to the back surface of the bottom surface portion of the back frame 45 by using appropriate fixing means.

  If necessary, one or more optical members (for example, a diffusion sheet or a prism sheet) for illuminating the display panel 41 with substantially uniform backlight may be disposed between the display panel 41 and the light guide 42a. Good.

  The display panel 41 includes, for example, a thin film transistor type (TFT type) liquid crystal display panel having a plurality of pixels. The display panel 41 is arranged in parallel with the display plate 14 provided in the pointer type display unit 10 and is detected from various sensors mounted on the vehicle. Based on the signal, the display unit 41a displays various information such as travel distance information and fuel consumption information. The display unit 41a is displayed in the display area R1 of the display panel 41. The display panel 41 includes a non-display area R2 that is an area other than the display unit 41a.

  Thus, when a TFT type liquid crystal display panel is applied as the display panel 41, the color tone of the liquid crystal background portion 41b forming the background of the various information (display portion 41a) is black. The display panel 41 here has a thickness of about 5 millimeters.

  The light guide 42 a is made of a substantially flat translucent synthetic resin and is disposed along the back surface of the display panel 41. In other words, the light guide 42a is arranged in the illumination optical path from the light source 42b to the display panel 41.

  The light sources 42b are made of chip-type light emitting diodes that emit colors as appropriate, and are arranged in rows along one side surface 42d of the light guide 42a, and are made of light emitters that supply illumination light to the display panel 41.

  The front frame 44 is made of a conductive material, press-molded in a substantially frame shape, and a front part 44a that covers the non-display area R2 of the display panel 41, and a first part that is suspended downward from the periphery of the front part 44a. One peripheral wall portion 44b is integrally formed. A display window portion 44c formed of a substantially rectangular opening window is formed at a substantially central portion of the front surface portion 44a so as to correspond to the display region R1.

  Similar to the front frame 44, the back frame 45 is made of a conductive material and is formed in a substantially concave shape in cross section. The bottom surface 45a forms a main part of the back frame 45, and the first peripheral wall 44b side from the periphery of the bottom surface 45a. And a second peripheral wall portion 45b formed so as to protrude toward the surface.

  In FIG. 2, a flexible wiring board 42c is appropriately fixed to the inner wall surface 45c of the second peripheral wall portion 45b located on the right side by using a fixing means. Each light source 42b is provided on one side of the light guide 42a. It is mounted on a conductive path (not shown) provided in the flexible wiring board 42c so as to face 42d. It is assumed that the circuit board 47 and the wiring board 13 are conductively connected using a flexible wiring board or the like.

  4 schematically shows the positional relationship between the display panel 14 and the display panel 41 in a side view when the vehicle instrument D is viewed from the side (that is, when viewed from the arrow Y direction in FIG. 1). FIG. In the case of the present embodiment, in the side view, the display plate 14 provided in the pointer-type display unit 10 and the display panel 41 provided in the display unit 20 are arranged side by side. The display panel 41 is configured to be located within the thickness range T.

  Specifically, in this example, the outermost surface P1 of the display board 14 in a state where the measurement value display part 14a and the background part 14c are formed on the substrate 14b, and the display of the display panel 41 on which the various information is displayed. Since the display plate 14 and the display panel 41 are arranged in parallel so that the surface P2 is positioned on substantially the same surface, when the vehicle instrument D is viewed from the viewer side, the display plate is displayed from the viewer. 14 is approximately equal to the distance from the viewer to the display surface P2 of the display panel 41, the measured value display unit 14a provided on the display board 14 (outermost surface P1), and the display panel 41. It is possible to provide a vehicular instrument D capable of giving a sense of unity to the display of the various information displayed on the (display surface P2).

  The 2nd see-through | perspective part 50 is formed in translucent synthetic resin material, and is arrange | positioned in the housing | casing 30 so that the peripheral part may be located in the back surface of the collar part with which the housing | casing 30 is provided later. In FIG. 2, reference numeral 51 denotes a holding part that holds the peripheral edge on the back side of the second see-through part 50, and the holding part 51 is formed integrally with the case body 16.

  A viewer who visually recognizes the vehicle instrument D can see through (view) the display unit 41 a displayed in the display region R <b> 1 of the display panel 41 through the second see-through unit 50. In addition, the display panel 41 and the 2nd see-through | perspective part 50 are passed through the photocurable transparent resin (not shown) which consists of an optical adhesive provided between the display panel 41 and the 2nd see-through | perspective part 50 as needed. And may be joined.

  The housing 30 is formed of, for example, a black synthetic resin material, and accommodates the pointer-type display unit 10 and the display unit 20. In this case, the housing 30 is divided into a black upper housing 31 and a lower housing 32. It has a formed configuration.

  A front side opening 33 is formed at a position corresponding to the pointer 11 and the display plate 14 on the front side of the upper housing 31 located on the viewer side among the housings 31, 32. The see-through portion 17 is disposed.

  Reference numeral 34 denotes a non-display area R2 of the display panel 41, which is an area other than the display section 41a, a front surface portion 44a of the front frame 44, and second perspective portions 50 corresponding to the non-display area R2 and the front surface portion 44a. It is a cover part formed in the shape of a collar part provided so as to cover, and this cover part 34 is formed integrally with the upper housing 31.

  Here, paying attention to the color tone of the cover portion 34 and the background portion 14 c provided on the display board 14, the color tone of the cover portion 34 is black, and the color tone of the background portion 14 c is similar to the color tone of the cover portion 34. It is black. That is, this means that the background portion 14c has a color tone similar to that of the cover portion 34 that covers the non-display area R2.

  Furthermore, when paying attention to the three color tones of the liquid crystal background portion 41b provided in the display panel 41 to form the background of the cover portion 34, the background portion 14c, and the display portion 41a, all of these three color tones are black. The liquid crystal background portion 41 b has a color tone similar to the color tone of the background portion 14 c and the color tone of the cover portion 34.

  As described above, in the present embodiment, the display plate 14 having the measurement value display unit 14a instructed by the pointer 11 and the display panel 41 having the display unit 41a for displaying the predetermined information (various information) are arranged in parallel. When the vehicle instrument D is viewed from the side when the vehicle instrument D is viewed from the side, the display panel 14 is positioned within the thickness range T of the display panel 41, so that the viewer When the vehicle instrument D is viewed from the side, the distance from the viewer to the outermost surface P1 of the display panel 14 is substantially equal to the distance from the viewer to the display surface P2 of the display panel 41. To provide a vehicle meter D capable of giving a sense of unity to the display of the measurement value display unit 14a provided on the outermost surface P1) and the various information displayed on the display panel 41 (display surface P2). Can do.

  Moreover, in this embodiment, the display board 14 is from the panel body by which the measured value display part 14a and the background part 14c which forms the background of the measured value display part 14a were formed in the light-transmitting board | substrate 14b used as the base material. The display panel 41 includes a non-display area R2 that is an area other than the display section 41a, and the background section 14c is black whose color tone is similar to the color tone of the cover section 34 that covers the non-display area R2. Therefore, when the vehicle instrument D is viewed from the viewer side, the background portion 14c and the cover portion 34 are visually recognized as an integrated black region, so that the measurement value display displayed in the black region The display of the part 14a and the display part 41a becomes more unified (a sense of unity).

  In this embodiment, the display panel 41 is a thin film transistor type liquid crystal display panel, and the liquid crystal background portion 41b provided in the display panel 41 has a color tone of the background portion 14c so as to form a background of the display portion 41a. And the color similar to the color tone of the cover portion 34, the background portion 14c, the cover portion 34 and the liquid crystal background portion 41b are integrated as if the vehicle instrument D was viewed from the viewer side. Since it is visually recognized as a black region, the display of the measurement value display unit 14a and the display unit 41a displayed in the black region becomes more unified (a sense of unity).

  In the present embodiment, the outermost surface P1 of the display plate 14 in a state where the measurement value display portion 14a and the background portion 14c are formed on the substrate 14b, and the display surface P2 of the display panel 41 on which the various types of information are displayed. Although an example in which the display panel 14 is positioned on substantially the same plane has been described, any configuration can be adopted as long as the display panel 14 is positioned within the thickness range T of the display panel 41. For example, the present embodiment As a modified example of FIG. 5, when the outermost surface P1 is located on the intermediate surface P3 that divides the display panel 41 into two substantially vertically, or as another modified example of the present embodiment, as shown in FIG. In addition, even when the back surface P4 of the substrate 14b is located on the same surface as the back surface P5 of the display panel 41, the same effects as those of the above-described embodiment can be obtained.

  In this embodiment, the example in which the measurement value display unit 14a and the background unit 14c are formed on the surface of the substrate 14b has been described. However, the measurement value display unit 14a and the background unit 14c are formed on the back surface of the substrate 14b. Also good. In this case, the outermost surface P1 of the display plate 14 described above is the surface of the substrate 14b, and the measurement value display portion 14a and the background portion 14c are located on the back surface P4 of the display plate 14 in the other modified examples described above. Needless to say.

D Vehicle instrument (display device)
DESCRIPTION OF SYMBOLS 10 Pointer type display part 11 Pointer 14 Display board 14a Measurement value display part 14b Board | substrate 14c Background part 20 Display unit 30 Case 31 Upper housing 32 Lower housing 34 Cover part 40 Display 41 Display panel 41a Display part 41b Liquid crystal background part R1 Display area R2 Non-display area T Thickness range

Claims (3)

A display board having a measured value display unit instructed by a pointer;
In a display device in which a display panel having a display unit for displaying predetermined information is arranged in parallel,
The display device is characterized in that the display plate is located within a thickness range of the display panel in a side view when the display device is viewed from the side. The display board is composed of a panel body in which a background portion for forming a background of the measurement value display unit and the measurement value display unit is formed on a light-transmitting substrate as a base material.
The display panel includes a non-display area that is an area other than the display unit,
The display device according to claim 1, wherein the background portion has a color tone similar to that of the cover portion covering the non-display area. The display panel comprises a thin film transistor type liquid crystal display panel,
3. The liquid crystal background portion provided in the display panel so as to form a background of the display portion has a color tone similar to the color tone of the background portion and the color tone of the cover portion. The display device described.

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