JP2010054326A - Pointer type display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pointer type display device capable of directing depth feeling having depth while preventing upsizing and holding down an increase in costs. <P>SOLUTION: The pointer type display device includes: a pointer 4 turning with an arc-shaped track; a display panel 5 having an index section 522 to be pointed by the pointer 4, and a background section 512; and a light source 2 for irradiating the display surface of the display panel 5 with light from the back. In the pointer type display device, the background section 512 includes a gradation print layer 514 where light transmittance becomes gradually higher toward radiation directions, a first linear print layer 515 for forming a plurality of lines where the width becomes gradually thicker toward the outer periphery from the center of the display surface, and a second linear print layer 516 for forming a concentric arc-shaped line crossing the first linear print layer 515. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a pointer-type display device that is applied to, for example, a vehicle and displays various measurement information with a pointer that rotates on a display board.

  As this kind of pointer type display device, for example, the one described in Patent Document 1 below is known. This pointer-type display device has a pointer, a trumpet shape that gradually increases in diameter from the deep part toward the observer, and an indicator part that is an indication target of the pointer on the outer peripheral part, and a deep part of the display board And a concealing portion that is disposed in the central portion of the display plate and prevents light from the light source from directly entering the eyes of the observer, and between the shielding portion and the display plate An annular space is formed, and light from the light source leaks to the outside through the annular space. The three-dimensional shape of the display panel formed in a trumpet shape and a sense of depth are produced by the light leaking from the space. Is.

As another example of producing a sense of depth, for example, one described in Patent Document 2 below is known. The pointer-type display device described in Patent Document 2 employs a gradation layer in which the light transmittance changes according to the plane direction on the display board. According to this, the intensity of illumination light changes even with a flat display board. This can produce a sense of depth.
JP 2008-51731 A Japanese Patent Laid-Open No. 11-119662

  However, the pointer-type display device described in Patent Document 1 requires that the display plate be formed into a trumpet shape, and the illumination structure must be complicated, so that an increase in size and cost cannot be avoided. On the other hand, the pointer-type display device described in Patent Document 2 can use a flat display plate and has a simple illumination structure, which is advantageous for suppressing an increase in size and cost, but only with a gradation layer. It is difficult to produce a deep trumpet-shaped depth feeling as described in Patent Document 1.

  The present invention pays attention to the above-described problems, and provides a pointer-type display device capable of producing a deep sense of depth while suppressing an increase in size and cost.

In order to solve the above-described problems, the present invention provides a pointer that rotates in an arc-shaped orbit, an index portion that is an indication target of the pointer within a display surface having an arc-shaped outer shape, and a background of the index portion. A pointer-type display device comprising: a display board on which a background part is printed; and a light source that illuminates the display surface of the display board from behind, wherein the background part extends from the center of the display surface to the outer periphery. A gradation print layer in which the light transmittance gradually increases toward the emission direction and a plurality of lines extending radially so that the width gradually increases from the center to the outer periphery of the display surface is formed. A first linear printed layer and a second linear printed layer that intersects the first linear printed layer and forms a concentric arc-shaped line with respect to the outer shape of the display surface. To do.
According to this, even in the case of a flat display panel or a shallow aperture display panel, a deeper wrapper, for example, can be obtained by a synergistic effect of the change in brightness due to the gradation printed layer and the visual effect of the first and second linear printed layers. It can produce a sense of depth and depth.

According to the present invention, the display panel includes a first display panel in which the background portion is formed, and a second display panel in which the indicator portion is formed on a light-transmitting substrate. The second display panel is arranged in front of the display panel.
According to this, since the background part is visually recognized at a position deeper than the index part, the index part looks as if it floats on the background part, and the sense of depth can be emphasized.

Further, the present invention provides a light shielding region in the center of the display surface by setting the light transmittance of the gradation printing layer to zero or printing the light shielding layer so as to overlap the gradation printing layer. A transparent window portion including a through-hole or a transparent portion is provided, and a display panel for displaying predetermined information is disposed on the transparent window portion so that the display surface faces the display window. The predetermined information is displayed by light emission.
According to this, since the predetermined information is emitted and displayed in the panel background assimilated to the light shielding area, the predetermined information appears as if it floats on the background portion, and the sense of depth can be enhanced.

  According to the present invention, an initial purpose can be achieved, and a deep sense of depth can be produced while suppressing an increase in size and cost.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  1 to 4 show an embodiment of a pointer type display device according to the present invention, FIG. 1 is a front view of the pointer type display device according to the present embodiment, and FIG. 2 is a cross-sectional view taken along line AA of FIG. FIG. 3 is a front view showing a gradient layer alone, and FIG. 4 is a front view showing a linear printing boost alone. FIG.

  1 and 2, the illumination device according to the present embodiment includes a driving device 1, a light source 2, a circuit board 3, a pointer 4 connected to the driving device 1 and rotating around an axis, and behind the pointer 4. The display panel 5 is disposed, the display panel 6 is disposed so as to be seen through from the display panel, and the light guide plate 7 that illuminates the display panel 5 is provided.

  The driving device 1 is composed of, for example, a stepping motor having a pointer shaft 11, but a cross coil driving device may be applied instead of the stepping motor.

  The light source 2 is made of a light emitting diode, for example, and a plurality of light sources 2 are arranged so as to illuminate the pointer 4, the display plate 5 and the display panel 6.

  The circuit board 3 is mounted with circuit elements (not shown) in addition to the driving device 1 and the light source 2.

  The pointer 4 is formed in a U shape by, for example, a translucent synthetic resin, and is connected to the pointer drive 11 so that it passes through the side surface from the back surface of the display plate 5 and the tip is positioned on the front surface of the display plate 5. It arrange | positions and the front of the display board 5 is rotated by the arcuate track | orbit by the drive device 1. FIG.

  The display board 5 is divided and formed into a first display board 51 and a second display board 52, and a second display board 52 is arranged in front of the first display board 51. In the second display plates 51 and 52, a see-through window portion 53 corresponding to the display panel 6 is formed.

  The first display board 51 is formed by printing a background portion 512 on the surface of a substrate 511 made of a translucent synthetic resin by means such as screen printing.

  The board | substrate 511 is formed as a disc corresponding to the rotation track | orbit of the pointer | guide 4, and in the case of this embodiment, the circular arc-shaped display surface is formed with the external shape of the board | substrate 511, and the linear printed layer mentioned later. When the substrate 511 other than the arc shape is employed, the outer shape of the display surface may be defined by various printing layers, shielding members, and the like. The substrate 511 is formed with a through hole that constitutes a part of the see-through window portion 53. When the transparent window 53 is a transparent part, the through hole is not necessary.

  The background portion 512 includes a ground color layer 513, a gradation print layer 514, a first linear print layer 515, and a second linear print layer 516.

  The ground color layer 513 is printed and formed on the entire front surface of the substrate 511 using, for example, blue translucent ink.

  As shown in FIG. 3, the gradation print layer 514 is constituted by a dot layer formed on the front side of the ground color layer 513 using, for example, black light-shielding ink, and this dot layer is formed at the center of the display surface. In this case, the dot density is adjusted so that light spreads in a radial direction from the center of the virtual rotation of the pointer 4 toward the outer periphery and gradually increases in the display surface in the radial direction (see FIG. 2). . Therefore, when the light source 2 is turned on, a gradation pattern appears in which the center (area) is the darkest black and gradually changes in color tone from dark blue to vivid blue toward the radial direction (outer periphery). In this case, the gradation layer 514 forms a light shielding area B having a light transmittance of zero in the central area of the display surface, and the see-through window portion 53 is positioned in the light shielding area B.

  The first linear printing layer 515 is printed and formed in the same process as the gradation printing layer 514 using the same light-shielding ink as the gradation printing layer 514, and as shown in FIG. Is formed with a plurality of lines extending radially toward the outer periphery, and the width of each of these lines gradually increases toward the outer periphery, and each line is equally spaced along the direction of rotation of the pointer 4. It is arranged at. In addition, among the first linear print layers 515, the first linear print layers 515 corresponding to the numbers “0”, “40”, “80”, and “120” in the index portion described later are curved. The rest is a straight line. In the present embodiment, the first linear printed layer 515 functions as a scale.

  The second linear print layer 516 is formed in the same process as the formation of the gradation print layer 514 and the first linear print layer 515 using the same light-shielding ink as the gradation print layer 514 and the first linear print layer 515. As shown in FIG. 4, a plurality of lines concentric with the first linear printed layer 515 and concentric arcs with respect to the outer shape of the display surface are formed.

  Note that a diffusion layer 517 for diffusing light from the light source 2 is formed on the entire back surface of the substrate 511.

  The second display plate 52 is formed by printing the indicator portion 522 on the surface of a substrate (translucent substrate) 521 made of a translucent synthetic resin by means such as screen printing.

  The substrate 521 is formed as the same disk as the substrate 511, and a through hole forming a part of the see-through window portion 53 is formed. When the transparent window 53 is a transparent part, the through hole is not necessary.

  The indicator portion 522 is formed using, for example, white ink, and is arranged in an arc shape according to the trajectory so as to be an indication target of the pointer 4.

  As the display panel 6, for example, a liquid crystal panel can be applied, and the display panel 6 is disposed behind the display panel 5 so that the display surface thereof faces the see-through window portion 53. The display panel 6 may be a light-emitting panel such as a liquid crystal panel, or a self-luminous panel such as an organic EL panel.

  The display panel 6 employs a panel that emits (transmits) predetermined information in a panel background that does not emit light (opaque). In the present embodiment, alarm information “Check Engine” is illustrated as an example of the predetermined information, but the predetermined information is arbitrary.

  The light guide plate 7 is disposed along the back surface of the display panel 6 and guides light from the light source 2 to the display panel 6.

  In this embodiment configured as described above, when all the light sources 2 are turned on, the light is introduced into the pointer 4 and the tip side of the pointer 4 emits light in a predetermined color. The light from the light source 2 illuminates the display board 5 from behind. As shown in FIG. 1, the gradation pattern by the gradation printing layer 514 and the first and second linear printing layers 515 and 516 are provided behind the indicator portion 522. A linear pattern is visible. At this time, the gradation pattern and the linear pattern overlap each other, and the center is at the bottom due to the synergistic effect of the bright and dark changes from the center to the outer periphery due to the gradation pattern and the visual effect (pseudo-stereoscopic effect) due to the linear pattern. Deeply, a trumpet-shaped background portion 512 whose outer peripheral portion gradually increases toward the observer can be expressed. The light from the light source 2 illuminates the display panel 6 through the light guide plate 7, thereby displaying information at the center of the display plate 5. At this time, the display panel 6 has a display surface that emits and displays predetermined information in the non-light-emitting panel background faces the transparent window portion 53 of the light-shielding region B, so that the light-shielding region B and the panel background are assimilated and viewed. The

  As described above, in the present embodiment, the pointer 4 that rotates in an arc-shaped path, the indicator portion 522 that is the indication target of the pointer 4 in the display surface having the arc-shaped outer shape, and the background of the indicator portion 522 In the pointer type display device including the display plate 5 on which the background portion 512 is printed and the light source 2 that illuminates the display surface of the display plate 5 from behind, the background portion 512 is formed from the center of the display surface. A gradation print layer 514 that spreads radially toward the outer periphery and gradually increases in light transmittance toward the radial direction, and a plurality of lines extending radially so that the width gradually increases from the center of the display surface toward the outer periphery. And a second linear printed layer 516 that intersects the first linear printed layer 515 and forms a concentric arc-shaped line with respect to the outer shape of the display surface. By the flat Even in the case of a display board or a shallow-drawn display board, a deep, for example, trumpet-shaped depth is obtained by a synergistic effect of the change in brightness by the gradation printing layer 514 and the visual effect of the first and second linear printing layers 515 and 516. A feeling of feeling and a three-dimensional feeling can be produced.

  Further, in the present embodiment, the display board 5 includes a first display board 51 in which the background part 512 is formed, and a second display board 52 in which the indicator part 522 is formed on the translucent substrate 521. By arranging the second display board 52 in front of the first display board 51, the background part 512 is visually recognized at a position deeper than the index part 522, so that the index part 522 is placed on the background part 512. It looks as if it is floating and can emphasize depth.

In the present embodiment, the light shielding area B is provided by setting the light transmittance of the gradation printing layer 512 to zero in the center of the display surface, and the light shielding area B is provided with a see-through window part 53 including a through hole or a transparent part. A display panel 6 for displaying predetermined information is arranged in the fluoroscopic window 53 so that its display surface faces, and the display panel 6 emits and displays the predetermined information in a non-light-emitting panel background, so that a light shielding region is displayed. Since the predetermined information is light-emitting and displayed in the panel background assimilated to B, the predetermined information appears as if it floats on the background portion 512, and the sense of depth can be emphasized.
The light shielding region B can be provided by printing and forming another light shielding layer so as to overlap the gradation printing layer 514 instead of the gradation printing layer 514.

In the present embodiment, the gradation printing layer 514 is provided by screen printing, but may be provided by high-definition printing such as digital printing or offset printing. By using such high-definition printing, the degree of freedom of gradation expression of the gradation print layer 512 can be improved, and the effect of producing a sense of depth can be enhanced.
In the present embodiment, as shown in FIG. 2, the light transmittance on the center side is the lowest (zero light transmittance) in the entire area of the background portion 512 in the radial direction from the center of the display surface to the outer periphery, and the outermost side. The gradation print layer 512 is set so as to gradually change so that the light transmittance is high (100%). The setting for increasing the light transmittance in the radial direction in this way is the center edge of the background portion 512. The present invention may be applied to a part of the region instead of the entire region from the part to the outer peripheral end. For example, in a partial region from the central end portion of the background portion 512 to a predetermined intermediate portion that does not reach the outer peripheral end portion, the light transmittance is gradually set higher in the radial direction, and the intermediate portion extends from the intermediate portion to the outer peripheral end portion. In other part of the region, the light transmittance may be set to be lower than that of the intermediate portion as a whole, or the light transmittance may be gradually decreased toward the outer peripheral edge.

The front view of the pointer type display apparatus by one Embodiment of this invention. It is AA sectional drawing of FIG. 1, Comprising: The figure which writes together the principal part expanded sectional view of a display board, and the change characteristic of the transmittance | permeability. The front view which shows the gradient layer single-piece | unit by the same embodiment. The front view which shows the linear printing increase single-piece | unit by the embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drive device 2 Light source 3 Circuit board 4 Pointer 5 Display board 6 Display panel 7 Light guide plate 11 Pointer axis 51 First display board 52 Second display board 53 Transparent window part 511 Substrate 512 Background part 513 Ground color layer 514 Gradation printing Layer 515 First linear printed layer 516 Second linear printed layer 517 Diffusion layer 521 Substrate (translucent substrate)
522 Index part B Light-shielding area

Claims (3)

A pointer that rotates in an arcuate path,
A display board in which an indicator part to be indicated by the pointer and a background part as a background of the indicator part are printed on a display surface having an arcuate outer shape;
A light source that illuminates the display surface of the display plate from behind;
In a pointer-type display device with
The background portion radiates from the center of the display surface toward the outer periphery and gradually increases in light transmittance toward the radial direction, and the width gradually increases from the center of the display surface toward the outer periphery. A first linear printed layer that forms a plurality of lines extending radially so as to be thick, and a second that intersects the first linear printed layer and forms a concentric arc-shaped line with respect to the outer shape of the display surface A pointer-type display device comprising a linear printed layer. The display board includes a first display board that forms the background portion, and a second display board that forms the indicator portion on a translucent substrate, and is disposed in front of the first display board. 2. The pointer-type display device according to claim 1, wherein the second display panel is arranged. In the center of the display surface, the light transmittance of the gradation printing layer is set to zero, or a light shielding layer is formed by printing to form a light shielding layer so as to overlap the gradation printing layer. A transparent window portion is provided, and a display panel for displaying predetermined information is arranged so that the display surface faces the transparent window portion, and the display panel displays the predetermined information in a non-light-emitting panel background. 2. The pointer-type display device according to claim 1, wherein the pointer-type display device performs light emission display.

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