JP6634756B2 - Display device - Google Patents

Description

  The present invention relates to a display device mounted on a vehicle such as an automobile or a motorcycle.

  2. Description of the Related Art Conventionally, as this type of display device, for example, a display device described in Patent Document 1 below is known. The display device described in Patent Literature 1 includes a vehicle instrument mounted on a vehicle, and has a liquid crystal display panel (display means) having a rectangular display area on which various information is displayed, and an illumination light provided on the liquid crystal display panel. , A light guide member arranged in an illumination path from the light source to the liquid crystal display panel, and a front side housing arranged on the viewer side of the liquid crystal display panel. A configuration in which a transparent portion made of a transparent resin provided so as to be able to see through the display area from the viewer side, and a substantially frame-shaped invisible portion made of a black resin provided at the transparent portion except for the display area are integrally formed. Has become.

  According to such a configuration, the viewer can view the rectangular display area in which various information is displayed through the light-transmitting part, and the substantially rectangular display area formed on the front side housing so as to surround all four sides of the display area. The frame-shaped invisible portion can be visually recognized (see through).

JP 2014-119579 A

By the way, in the case of the display device described in Patent Literature 1, the viewer has a rectangular display area on which various information is displayed, and a substantially frame formed on the front side housing so as to surround all four sides of the display area. This is a configuration in which the invisible portion having a rectangular shape is visually recognized, and the appearance of the entire display device including the rectangular display region and the invisible portion having a frame shape is inevitably uninteresting.
Therefore, an object of the present invention is to provide a display device that can realize a new appearance in order to address the above-described problem.

The present invention provides a liquid crystal display panel having a display area and a translucent overhanging portion , a light source for supplying illumination light to the liquid crystal display panel , and a light source arranged in an illumination path from the light source to the liquid crystal display panel. A light guide member, and a front-side housing disposed on the viewer side of the liquid crystal display panel , wherein the front-side housing is provided with a see-through portion provided so as to be able to see through the display area from the viewer side. An invisible portion that overlaps a peripheral portion of the see-through portion that is outside the display region, and a display portion is provided on a peripheral portion of the see-through portion using an area where the invisible portion is not formed; out parts are emitted from viewing the from認者side to the protruding portion upon orthoscopic the front cabinet is provided so as to overlap in the light guide member, the light guide member with the lighting of the light source some of Shako is led to the display unit through said projecting portion And wherein the door.

Further, the present invention provides a display unit having a display area, a light source for supplying illumination light to the display unit, a light guide member arranged in an illumination path from the light source to the display unit, the display unit, A frame body accommodating the light source and the light guide member and having a display window formed so as to correspond to the display area, and a front side housing arranged on the viewer side of the display means, The front side housing has a see-through portion provided so as to be able to see through the display region from the viewer side, and an invisible portion overlapping a peripheral portion of the see-through portion outside the display region, and a peripheral portion of the see-through portion display unit by using the areas not the invisible portion is formed is provided on the display unit, so as to overlap with at least the light guide member from the viewing認者side upon orthoscopic said front cabinet provided, the frame member, the table Has an opening provided corresponding to the section, that a part of the outgoing light emitted from the light guide member with the lighting of the light source is led to the display unit through the front KiHiraki opening Features.

  According to the present invention, it is possible to provide a display device that can achieve an initial purpose and realize a new appearance.

1 is a front view of a display device according to an embodiment of the present invention. AA sectional drawing of FIG.

  Hereinafter, a case where the display device of the present invention is applied to a vehicle instrument mounted on a vehicle will be described with reference to FIGS. 1 and 2 as an example.

  1 and 2, a vehicle instrument D as a display device according to the present embodiment includes a display unit 10 having a display area S capable of displaying various types of vehicle information, and a light source 20 for supplying illumination light to the display unit 10. And a light guide member 30 arranged in an illumination path from the light source 20 to the display means 10, a resin case 40 holding the light guide member 30, and surrounding the light source 20, the light guide member 30, and the resin case 40. (Metal) frame 50, a front housing 60 disposed in front of the display means 10 (viewer side), and a back side of the display means 10 (viewer side). (The opposite side) is provided with a circuit board 70, and a rear housing 80 that houses the light source 20, the circuit board 60, and the like.

  Liquid crystal is sealed between the display means 10, for example, the upper transparent substrate 11 and the lower transparent substrate 12, and the upper polarizing plate 13 and the lower polarizing plate 14 are respectively attached to the front and back surfaces of the transparent substrates 11, 12. In this case, it has an information display unit 15 capable of displaying various types of vehicle information such as vehicle speed information and mileage information. The information display section 15 is displayed in the display area S described above. In the case of this example, since the lower polarizing plate 14 is not attached to the projecting portion 16 of the lower transparent substrate 12 projecting from the upper transparent substrate 11, the projecting portion 16 transmits light. And constitute the light transmitting portion.

  The light source 20 is formed of, for example, a chip-type light emitting diode that emits white light, and is mounted on the circuit board 70 so as to face a light receiving unit of the light guide member 30 described below. The number of the light sources 20 may be set to a required number corresponding to the shape (area) of the lower end surface of the light receiving unit.

  The light guide member 30 is formed of a light-transmitting synthetic resin material and is integrated with the substantially rectangular main body 31 disposed along the back of the display means 10 and with the main body 31 so as to face the light source 20. And a light receiving unit 32 that is formed and receives the illumination light from the light source 20.

  The light receiving portion 32 is configured to be bent so as to hang down from one side wall portion of the main body portion 31 toward the light emitting surface of the light source 20, and directly above the light receiving portion 32 is mainly introduced into the light receiving portion 32. A light guide surface 33 having a curved surface or an inclined surface having a function of reflecting and guiding the illuminating light to the main body 31 side and guiding the illuminating light to a display unit (described later) provided in the front housing 60 is provided. Have been.

  Numeral 34 is a light emitting surface composed of a flat surface for emitting the illumination light reflected and guided into the main body 31 through the light receiving portion 32 and the light guiding surface 33 to the display means 10 side. , Provided on the front surface of the main body 31 facing the viewer side.

  The resin case 40 is formed of, for example, a white synthetic resin material, and has a holding portion 41 that holds the display unit 10 and the main body 31. In this case, the holding section 41 functions as a holding body for holding the display means 10 and the main body section 31, and further, a light reflection for efficiently guiding the illumination light introduced into the main body section 31 to the light emitting surface 34 side. It has a function as a surface.

  The frame body 50 is a conductive housing that is formed of a conductive material and houses (housing) the display unit 10, the light source 20, the light guide member 30, and the like. The frame body 50 includes a front wall portion 51 and a side wall portion 52, and a display window 53 is formed in the front wall portion 51 of the frame body 50 so as to correspond to the display area S. Reference numeral 54 denotes an opening as an opening formed in the front wall 51 so as to be adjacent to the display window 53, and the opening 54 is provided so as to correspond to the display unit. I have.

  On the other hand, the side wall portion 52 surrounds the outer wall portion 42 of the resin case 40, and for example, a substantially L-shaped caulking piece (not shown) integrally formed on the bottom of the side wall portion 52 is provided on the back surface of the circuit board 70. By caulking and fixing, internal components such as the display means 10, the light source 20, the light guide member 30, the resin case 40, and the circuit board 70 are fixed and held inside the frame body 50.

  The front case 60 includes a see-through portion 61 formed of a light-transmitting synthetic resin material, and an invisible portion 62 as an opaque portion formed of a light-shielding (eg, black) synthetic resin material. . In this case, for example, the front side housing 60 can be obtained by insert-molding the see-through portion 61 into the invisible portion 62.

  The see-through section 61 is formed of a substantially flat see-through panel provided so as to be able to see through the display area S from the viewer side, and a viewer who views the display means 10 (vehicle instrument D) enters the display area S through the see-through section 61. The displayed information display unit 15 can be seen through (visually recognized).

  The invisible portion 62 includes a front light-shielding wall 63 provided on the back side of the see-through portion 61 so as to cover the front wall portion 51 of the frame body 50 and not to cover the display window 53 of the frame body 50, and a side wall of the frame body 50. And a side light shielding portion 64 surrounding a part of the portion 52.

  In this case, the see-through unit 61 has a display unit 65 that forms a predetermined display design including characters, marks, symbols, and the like. In this case, for example, a white transparent portion is formed in a non-formed area of the front light-shielding wall 63 (invisible portion 62) provided so as to overlap with the transparent portion 61 except for the display region S (the rear portion of the transparent portion 61). It is composed of a light-transmitting printing layer formed by printing using light ink. The non-formed region of the front light-shielding wall 63 (invisible portion 62) is configured to face (face) the opening 54.

  In other words, the display unit 65 here is formed in a non-formed area of the front light-shielding wall 63 (invisible portion 62) facing the opening 54, and is stretched when the front side casing 60 is viewed from the viewer's side. It is provided so as to overlap with the projection 16 and the light guide surface 33 (light guide member 30).

  The circuit board 70 is formed of, for example, a hard wiring board in which a wiring pattern (not shown) is formed on a glass epoxy base material. For example, a control unit (not shown) for controlling the display unit 10, the light source 20, Circuit components (not shown) such as resistors and capacitors are electrically connected to the wiring pattern.

  The rear housing 80 is made of, for example, a synthetic resin material and is formed in a substantially box shape. In this case, the rear casing 80 and the front casing 60 constitute an outer case of the instrument D for a vehicle.

  The above-described components constitute a vehicle instrument D. Here, the display unit 65, the opening 54 provided in the front wall 51 (the frame body 50), the light-transmitting overhang 16 provided in the display unit 10, and the light guide surface 33 of the light guide member 30. Paying attention to the positional relationship, the display unit 65, the opening 54, the overhanging portion 16, and the light guide surface 33 are arranged in this order from the front housing 60 side to the circuit board 70 side, and directly below the display unit 65 ( An opening 54 is located immediately below (directly below), an overhang 16 that is a light transmitting portion is located immediately below (directly below) the opening 54, and a light guide surface 33 is located immediately below (directly below) the overhang 16. Configuration.

  Therefore, when the light source 20 is turned on, the illuminating light emitted from the light source 20 reaches the light receiving portion 32, and the illuminating light that has reached the light receiving portion 32 is reflected and guided by the light guide surface 33 toward the main body portion 31, and is finally emitted The first outgoing light emitted from the light emitting surface 34 and the second outgoing light emitted from the light guide surface 33 and finally reaching the display unit 65 are roughly classified.

  The reflected light reflected and guided to the main body 31 side is emitted from the light emission surface 34 as the first emission light, reaches the display unit 10, and thereby the information display unit 15 is backlit.

  Further, the second emitted light emitted from the light guide surface 33 proceeds straight forward toward the front side (viewer side) as it is, and transmits (passes) through the protruding portion 16 of the display means 10 and the frame body 50 The light passes through the opening 54 and reaches a display unit 65 formed in the see-through unit 61 of the front housing 60. The second outgoing light that reaches the display section 65 passes through the display section 65 and the light-transmitting section 61 corresponding to the display section 65. The user can visually recognize the display unit 65 which is displayed in white on a part of the front light-shielding wall 63.

  That is, according to the present example, a part of the outgoing light emitted from the light guide member 30 (that is, only the second outgoing light of the first and second outgoing lights) is stretched when the light source 20 is turned on. The display section 65 is configured to be guided to the display section 65 through the projection section 16 and the opening section 54 provided in the frame body 50, whereby the display section 65 emits light using a part of the front light-shielding wall 63. .

  As described above, in the present embodiment, the display unit 10 having the display area S, the light source 20 that supplies illumination light to the display unit 10, and the light source 20 that is disposed in the illumination path from the light source 20 to the display unit 10. A light member 30, a frame body 50 accommodating the display means 10, the light source 20, and the light guide member 30 and having a display window 53 formed so as to correspond to the display area S; A front side housing 60 is provided. The front side housing 60 has a see-through portion 61 provided so as to be able to see through the display area S from the viewer side, and a display portion 65 for forming a predetermined display design. The display section 65 is formed in a non-formed area of the invisible section 62 provided at the see-through section 61 except for the display area S, and extends when the front side casing 60 is viewed straight from the viewer side. 16 and the light guide member 30 (light guide surface 33) A part of the outgoing light emitted from the light guide member 30 (that is, only the second outgoing light of the first and second outgoing lights) is provided to the frame body 50 when the light source 20 is turned on. The light passes through the provided opening 54 and is guided to the display unit 65.

  Therefore, the display section 65 such as a character provided on a part of the front light-shielding wall 63 is made use of the second emitted light from behind (that is, a part of the illumination light for illuminating the display means 10 is used). B) Since the luminous display can be performed, the external appearance (appearance) of the vehicle instrument D when looking straight at the vehicle instrument D from the viewer side becomes a novel and interesting thing. Thus, it is possible to provide a display device that can realize a new appearance. Further, in this case, the display unit 65 and the display unit 10 can be illuminated by the single light source 20, and when illuminating the display unit 65, a dedicated display unit illumination light source for illuminating the display unit 65 is used. Since it is unnecessary separately, a new appearance can be realized while avoiding an increase in cost.

  Note that the present invention is not limited by the above-described embodiment and drawings. Modifications (including deletion of components) can be made to the embodiments and drawings as appropriate without changing the gist of the present invention.

  For example, in the above-described embodiment, the second outgoing light is transmitted to the display unit 65 by using the opening 54 provided in the frame body 50 that accommodates the display unit 10 and the like and the overhang 16 provided in the display unit 10. However, for example, the overhang portion 16 itself is abolished, and a part of the light emitted from the light guide member 30 (that is, the second emitted light) is opened when the light source 20 is turned on. The light may be guided to the display unit 65 only through the unit 54. That is, at this time, the display unit 65 is provided so as to overlap only with the light guide member 30 when the front side housing 60 is viewed from the viewer side.

  Furthermore, in addition to the overhang 16, the frame body 50 in which the opening 54 is formed may be omitted. In this case, the emission light emitted from the light guide member 30 with the lighting of the light source 20. A part (that is, the second emitted light) is directly guided to the display unit 65, whereby the display unit 65 such as a character provided in a part of the front side housing 60 emits light and is displayed. . In this case, also in this case, the display unit 65 is provided so as to overlap only with the light guide member 30 when the front side housing 60 is viewed from the viewer side.

  Needless to say, any shape can be adopted as the shape of the opening 54 provided in the frame body 50 as long as the second emitted light can be guided to the display unit 65 side. In this case, the display section 65 is formed of a white translucent print layer. However, for example, the display section 65 may be formed of a translucent print layer having a color tone different from the color tone of the invisible portion 62.

D Vehicle instrument (display device)
DESCRIPTION OF SYMBOLS 10 Display means 16 Projection part 20 Light source 30 Light guide member 31 Main body part 32 Light receiving part 33 Light guide surface 34 Light emission surface 50 Frame body 51 Front wall part 53 Display window part 54 Opening part 60 Front side housing 61 Transparent part 62 Invisible part 65 Display part S Display area

Claims (2)

A liquid crystal display panel having a display area and a translucent overhang ,
A light source for supplying illumination light to the liquid crystal display panel ;
A light guide member arranged in an illumination path from the light source to the liquid crystal display panel ,
A front side housing arranged on the viewer side of the liquid crystal display panel ,
The front-side housing has a see-through portion provided so as to be able to see through the display region from the viewer side, and an invisible portion overlapping a peripheral portion of the see-through portion outside the display region ,
A display portion is provided in a peripheral portion of the see-through portion using a region where the invisible portion is not formed,
The display unit is provided from the viewing認者side so as to overlap with the light guide member and the protruding portion upon orthoscopic the front cabinet,
A display device, wherein a part of emitted light emitted from the light guide member as the light source is turned on passes through the overhanging portion and is guided to the display portion. Display means having a display area;
A light source for supplying illumination light to the display means,
A light guide member arranged in an illumination path from the light source to the display means,
A frame body that accommodates the display means, the light source, and the light guide member and has a display window formed to correspond to the display area,
A front housing arranged on the viewer side of the display means,
The front side housing has a see-through portion provided so as to be able to see through the display region from a viewer side, and an invisible portion overlapping a peripheral portion of the see-through portion outside the display region ,
A display portion is provided in a peripheral portion of the see-through portion using a region where the invisible portion is not formed,
The display unit is provided so as to overlap with at least the light guide member from the viewing認者side upon orthoscopic the front cabinet,
The frame body has an opening provided corresponding to the display unit,
Display device, wherein a part of the outgoing light emitted from the light guide member with the lighting of the light source is led to the display unit through the front KiHiraki opening.

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