JP2009052900A - Pointer type display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device excellent in design artistry and marketability. <P>SOLUTION: This pointer type display device is equipped with: a light source 3; an indicator 7 comprising a light receiving part 741 for receiving light from the light source 3 on the side of a base part 75 coupled to a drive source 4 with a lengthwise-extending indication part 74 emitting light owing to light from the receiving part 741; and a display board 6 equipped with an index part 62 indicated by the indication part 74. This display device is equipped, on the observer side of the indicator 7, with a luminance adjustment member 73 for performing adjustment so that the luminance of the indication part 74 increases away from the base part 75 side toward the end side. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a pointer type display device mounted on, for example, a vehicle, and more particularly to improvement of a pointer.

As a conventional pointer display device, for example, there is one described in Patent Document 1. This pointer-type display device has a light source and a light receiving portion that receives light from the light source on a base side connected to a driving source, and a pointer that emits a longitudinal portion by the light from the light receiving portion. And a display board provided with an indicator portion instructed by the instruction portion. The pointer includes a light-transmitting member having a pointing portion and a base, and a pointer cover that covers the periphery of the base. The base indicates a light receiving portion that guides light from the light emitting diode into the base, and indicates light incident on the light receiving portion. And a reflecting surface that causes the pointing portion to emit light in a linear shape by being reflected on the portion side.
JP 2004-354278 A

  However, such a pointer-type display device has a problem that the light emitted from the light source is received by the light receiving unit and the translucent member is simply made to shine by the light, which is monotonous and lacks design and commerciality. is doing.

  The present invention has been made in view of this point, can give a floating feeling to the indicator, provides a new way of showing the pointer main body, and has excellent design and commercial characteristics. An object is to provide an expression display device.

  In order to solve the above problems, the present invention has a light source and a light receiving portion that receives light from the light source on a base side connected to a driving source, and an instruction portion that extends in a longitudinal direction by the light from the light receiving portion. In a pointer display device including a pointer that emits light and a display plate that includes an indicator unit that is instructed by the instruction unit, the indicator unit is arranged on the observer side of the pointer toward the tip side from the base side. A luminance adjustment unit that adjusts the luminance to be high is provided.

  According to the present invention, the brightness adjusting portion is formed of a semi-transmissive member that changes so that the thickness decreases as it goes from the base side toward the tip side.

  Further, according to the present invention, the luminance adjustment unit is provided with a luminance adjustment layer that adjusts the intensity of light emitted from the instruction unit and reaching the adjustment unit between the instruction unit and the luminance adjustment unit.

Further, according to the present invention, a diffuser for diffusing the light emitted from the light source is provided on the observer side of the brightness adjusting unit, and the brightness change of the pointing unit can be smoothed and blurred.

  In the present invention, a front panel made of a semi-transmissive member is provided on the observer side of the pointer, and the floating feeling of the pointing unit can be emphasized.

  According to the first aspect of the present invention, it is possible to make the indicating unit have a floating feeling by providing a luminance adjusting unit on the indicating unit that adjusts the luminance of the indicating unit to increase from the base side toward the distal end side. As a result, it is possible to provide a new way of displaying the indicator body of the pointer main body, and to provide a pointer-type display device that is excellent in design and merchantability.

  According to the second aspect of the present invention, the brightness of the indicator is changed by the semi-transmissive member that changes in thickness as it goes from the base side to the tip side of the indicator. Therefore, it is possible to provide a novel display method in the way of illuminating the indication unit of the pointer main body, and to provide a pointer-type display device that is excellent in design and merchantability.

  The invention according to claim 3 is provided with a luminance adjustment layer that adjusts the intensity of light emitted from the instruction unit and reaching the luminance adjustment unit between the instruction unit and the luminance adjustment unit, thereby improving the degree of freedom of luminance change. Can be made.

  In the invention according to claim 4, since the diffusion part for diffusing the emitted light is formed on the surface of the brightness adjusting part, the change in the brightness of the indication part can be made smooth and the appearance can be blurred. It is possible to emphasize the floating feeling of the instruction unit.

  The invention described in claim 5 is characterized in that the floating feeling of the indicating unit is enhanced by providing a front panel made of a semi-transmissive member on the front side of the light emitting pointer and the display board.

  Embodiments of a pointer-type display device to which the present invention is applied will be described below with reference to the accompanying drawings. 1 and 2 show a first embodiment of the present invention. FIG. 1 is a front view of a pointer-type display device, FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, and FIG. It is explanatory drawing which shows a gradient.

  1 and 2, the pointer type display device includes a back cover 1, a circuit board 2, a light source 3, a drive source 4, a case 5, a display plate 6, a pointer 7, and a front cover 8. ing.

  The back cover 1 is made of an uncolored synthetic resin such as polypropylene, for example, and is disposed so as to cover the back side (the side opposite to the observer side) of the circuit board 2.

  The circuit board 2 is a well-known hard circuit board made of, for example, glass epoxy resin, and has a circuit pattern (not shown) that supplies power to the drive source 4 and the light source 3.

  A plurality of light sources 3 are installed on the circuit board 2 (observer side), for example, are top-view type light emitting diodes that emit white light and illuminate the pointer 7 and the display board 6.

  For example, a stepping motor can be applied to the drive source 4, and it has a pointer shaft 41, which is connected to the pointer 7. The main body of the drive source 4 is located on the back side of the circuit board 2, and the pointer shaft 41 extends through the circuit board 2 to the front side.

The case 5 is made of, for example, milky white synthetic resin, and has a reflecting portion 51 and a cylindrical portion 52 by partitioning the inside with a partition wall, and is disposed on the observer side of the circuit board 2.

  The display board 6 is formed, for example, by screen printing on a translucent synthetic resin board. For example, a black light-shielding ground portion 61 serving as a background, and a translucent scale such as a scale or a number indicating a speed or the like. The indicator portion 62 is supported on the circuit board 2 by the case 5. The indicator section 62 constitutes a scale, characters, marks, etc. that are the target of the pointer 7.

The pointer 7 includes a translucent member 71, a pointer cover 72, and a luminance adjusting member (luminance adjusting unit) 73.

  The translucent member 71 is made of, for example, transparent or translucent synthetic resin, and includes an instruction portion 74 and a base portion 75.

  The instruction unit 74 is made of a light-transmitting synthetic resin such as colorless and transparent acrylic or polycarbonate, for example, and instructs the indicator unit 62. Further, a hot stamp layer 76 made of, for example, a red foil is formed on the back side of the instruction unit 74, that is, the surface opposite to the observer.

  The base portion 75 has a connecting portion connected to the pointer shaft 41, a light receiving portion 741 that guides light from the light source to the inside, and a pointer reflection that reflects light incident on the light receiving portion 741 to the pointing portion 74 side. Part 742.

  The pointer cover 72 is made of, for example, a cup-type light-shielding synthetic resin and covers the periphery of the base portion 75. The top surface of the pointer cover 72 is formed with a notch 77 that exposes the viewer-side surface of the base 75 and extends the indicator 74 to the inside of the pointer cover 72.

  The brightness adjusting member 73 is made of, for example, a dome-shaped semi-transmissive member (semi-transmissive synthetic resin whose light transmittance is adjusted to a desired value by mixing a dark pigment), and is an instruction portion 74 portion exposed from the notch portion 77. Is mounted so as to cover the top surface of the pointer cover 72. The brightness adjusting member 73 is configured to change so that its thickness decreases from the base 75 side toward the distal end side. That is, the dome shape has the largest thickness on the rotation center axis of the pointer 7, the thickness gradually decreases toward the outside (the tip of the pointer 7), and the thickness becomes zero at a position corresponding to the end of the pointer cover 72. have.

  The front cover 8 is made of, for example, a semi-transmissive member (semi-transmissive synthetic resin similar to the brightness adjusting member 73), and covers the display board 6 and the pointer 7.

  In the pointer type display device configured as described above, when the light source 3 for illuminating the display plate 6 among the light sources 3 is turned on, the light illuminates the display plate 6 from the back through the reflecting portion 51 and is light transmissive. The indicator unit 62 is caused to emit light. The indicator 62 that emits light is visually recognized through the front cover.

  When the light source 3 for illuminating the pointer 7 is turned on, the light reaches the pointer light receiving portion 741 through the cylindrical portion 52, is reflected by the pointer reflecting portion 742, and causes the pointing portion 74 to emit light. The indicator 74 that emits light is visually recognized through the front cover. At this time, since the brightness adjusting member 73 is arranged on the observer side of the pointer 7, adjustment is performed so that the brightness of the instruction unit 74 gradually increases from the base 75 side toward the distal end side as shown in FIG. 3. Is done.

  As described above, the pointer-type display device according to the present embodiment has the light source 3 and the light receiving unit 741 that receives the light from the light source 3 on the base 75 side connected to the driving source 4, and the light from the light receiving unit 741. In the pointer display device including the pointer 7 that emits light from the indicator 74 that extends in the longitudinal direction by the indicator and the display plate 6 that includes the indicator portion 62 that is indicated by the indicator 74, By providing the brightness adjusting member 73 that adjusts the brightness of the indication unit 74 to increase as it goes from the 75 side toward the distal end side, the brightness on the base 75 side of the indication unit 74 gradually increases as it goes toward the distal end portion. By doing so, it is possible to give the indication unit 74 a novel appearance, and provide a new way of displaying the indication portion 74 of the pointer 7 main body so that the indication type is excellent in design and merchantability. apparatus It is possible to provide.

  Further, in the present embodiment, the brightness adjusting member 73 is made of a semi-transmissive member that changes in thickness so as to decrease from the base 75 side toward the tip side, so that the base side end portion in a dark (eg, black) background. Since the pointer that emits light is visually recognized so as to fade out, further novelty can be provided.

  Further, in the present embodiment, by providing a front cover made of a semi-transmissive member on the front side of the light emitting pointer and the display plate, it is possible to hide the presence other than the light emitting unit, and thereby the floating feeling of the indication unit Can be emphasized, which is advantageous.

  FIG. 4 is a cross-sectional view showing a second embodiment of the present invention. In this embodiment, a brightness adjusting portion 81 is provided on the front cover 8. With this configuration, the same effect as that of the first embodiment of the present invention can be obtained.

  FIG. 5 is a cross-sectional view showing a third embodiment of the present invention. In this embodiment, the intensity of light emitted from the instruction unit 74 and reaching the luminance adjustment member 73 between the instruction unit 74 and the luminance adjustment member 73. Are provided with a brightness adjusting layer 731 for adjusting the brightness and a diffusing portion 732 for diffusing the emitted light from the light source 3 on the viewer side of the brightness adjusting member 73. As the brightness adjustment layer 731, for example, a halftone dot layer formed by changing the density of dots can be applied, thereby adjusting the light reaching the brightness adjustment unit, thereby supplementing the brightness adjustment function by the brightness adjustment unit. , The degree of freedom in changing the luminance can be improved. Further, as the diffusing portion 732, for example, a fine uneven portion formed at the same time as the formation of the luminance adjusting member 73 can be applied, whereby the emitted light from the luminance adjusting portion can be diffused and the luminance change can be smoothed. .

  In the present embodiment, the luminance adjustment unit is sized corresponding to the pointer cover and covers only the base 75 side. However, the instruction unit 74 may be covered over the entire length.

The front view of the display apparatus which shows 1st Embodiment of this invention. AA sectional drawing of FIG. Explanatory drawing which shows the brightness | luminance gradient of an instruction | indication part The front view of the display apparatus which shows 2nd Embodiment of this invention. The front view of the display apparatus which shows 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Back cover 2 Circuit board 3 Light source 4 Drive source 5 Case 6 Display board 7 Pointer 8 Front cover 41 Pointer shaft 51 Reflection part 52 Tube part 61 Ground part 62 Indicator part 71 Translucent member 72 Pointer cover 73 Brightness adjustment member 74 Instruction part 75 Base portion 76 Hot stamp layer 77 Notch portion 81 Brightness adjustment portion 731 Brightness adjustment layer 732 Diffusion layer 741 Light receiving portion 742 Pointer reflection portion

Claims (5)

  A light source, a light receiving portion that receives light from the light source on a base side connected to a driving source, a pointer that emits a longitudinally extending portion by the light from the light receiving portion, and an indication by the indication portion In a pointer display device provided with a display plate provided with an indicator unit, brightness adjustment is performed so that the brightness of the pointing unit increases toward the observer side of the pointer from the base side toward the tip side A pointer-type display device comprising a portion.   The pointer-type display device according to claim 1, wherein the luminance adjusting unit is a semi-transmissive member that changes so that the thickness decreases from the base side toward the tip side. 2. The pointer-type display device according to claim 1, wherein a luminance adjustment layer that adjusts the intensity of light emitted from the instruction unit and reaching the adjustment unit is provided between the instruction unit and the luminance adjustment unit.   The pointer-type display device according to claim 1, wherein the brightness adjusting unit includes a diffusion unit that diffuses outgoing light on a surface thereof. The pointer-type display device according to claim 1, further comprising a front panel made of a semi-transmissive member on a front side of the light emitting pointer and the display plate.

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