JP4873331B2 - Display device - Google Patents

Description

  The present invention relates to a vehicle instrument, and in particular, a display plate has a display window along an indicator portion, a display member having a display portion is arranged behind the display window, and the display member is moved through a drive member. Thus, the present invention relates to a display device that displays measured values.

  One example of this type of display device is described in Patent Document 1 below. This display device includes a display plate having a display window along an arc-shaped indicator portion, a rotating plate (display member) having a display portion arranged behind the display plate and visible through the display window, and the rotation And a driving member that rotates the plate, and displays the measurement value according to the amount of movement of the display portion visually recognized through the display window. The display window displays the maximum display value from the minimum display value (0 km / h) of the indicator portion. It extends corresponding to (240 km / h).

JP 2008-70162 A

  However, the display device described in Patent Document 1 has a display window formed from the minimum display value (0 km / h) to the maximum display value (240 km / h) of the indicator section. Since the measured speed is displayed by the amount of movement (length) of the display section visible from the window, when the display speed is in the low speed range, the length of the display section visible from the display window is shortened. The nature will decline. This tendency becomes more prominent as the display speed approaches the minimum display value (0 km / h), and the length of the display unit becomes zero at the minimum display value (0 km / h).

  The present invention focuses on the above-described problems, and an object of the present invention is to provide a display device having excellent visibility even when the display value is small.

The present invention includes a display plate having a display window along the indicator, a display member disposed behind the display plate and visible through the display window, and a drive member for moving the display member. In a display device for displaying a measurement value by the display unit visually recognized through the display window,
The display window extends from the minimum display value of the indicator portion in correspondence with the maximum display value of the indicator portion, and the indicator portion extends from the minimum display value continuously to the first display window. have a second display window that extends in the minus display direction of,
Since the driving member moves the display unit to the position showing the minimum display value through the second display window based on the activation switch , the display unit is visually recognized through the second display window. Even if the display value is small, a display device with excellent visibility can be provided.

In the present invention, the indicator unit includes a measurement value display unit corresponding to the measurement value, and the measurement value display unit is provided only along the first display window, whereby the second display window Since the corresponding measurement value display part is not formed in the display, the discomfort of the display can be wiped out. (If there is a measurement value display part such as scales or numbers that do not need to be displayed on the minus side, the user feels discomfort and is unnecessary. If there is a simple measurement value display part, the recognizability is likely to deteriorate).

  The present invention can provide a display device with excellent visibility even when the display value is small.

The front view which shows the display apparatus of the 1st Embodiment of this invention. The front view at the time of removing a display board same as the above. AA sectional drawing of FIG. In the 1st Embodiment of this invention, (a) is a front view of the display apparatus before turning on an activation switch, (b) is a front view of the display apparatus after turning on an activation switch. The front view which shows the display member by the 2nd Embodiment of this invention. The front view which shows the display member by the 3rd Embodiment of this invention.

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

  1 to 4 show a first embodiment of a display device according to the present invention.

  1 to 3, the display device according to the present embodiment is incorporated in, for example, a combination meter for automobiles, and includes a circuit board 1, a case 2, a display member 3, a drive member 4, and a reflection member 5. The display board 6 and the lens member 7 are provided.

  The circuit board 1 is made of, for example, a well-known hard circuit board, has various wiring patterns and circuit elements (not shown), and is mounted with a light source such as an LED (not shown).

  The case 2 is made of, for example, a synthetic resin material and is disposed on the circuit board 1.

  The case 2 forms a skeleton of the display device, for example, and supports the display plate 6 at a location not shown in the figure, and integrally has guide walls (guide members) 21 and 22 for guiding the movement of the display member 3. is doing.

  Each of the guide walls 21 and 22 is formed of a circular peripheral wall along the shape of a display window (to be described later) of the display plate 6, and extends outside the display window at intervals.

  These guide walls 21 and 22 protrude in parallel to the display board 6 side so as to have a predetermined height. In this case, the guide member 21 located on the inner side is arranged so that the display member 3 faces the reflecting member 5. The outer guide member 22 is formed to be short.

  The display member 3 is formed as a flexible display member using, for example, a synthetic resin film, and the display member 3 is formed so as to form a closed (endless belt-like) ring having a shape corresponding to the shape of the display window. At a position behind the display board 6 that is just below the window, it is passed over a driven roller (described later) constituting a part of the drive member 4, and its flat surface is drawn along the guide walls 21 and 22. Yes.

  Of the flat surfaces of the display member 3, the flat surface facing the reflecting member 5 is set as a display surface 31. As shown in FIG. 2, the display surface 31 has two colors, for example, red and black. Display portions 32 and 33 are formed, and a boundary portion B is formed at the boundary between the display portions 32 and 33.

  The drive member 4 includes all the components that move the display member 3 in the longitudinal direction, and includes a pair of driven rollers 41 and 42, a ring gear 43, a drive gear 44, and a drive source 45. Yes.

  The driven rollers 41 and 42 are positioned at one end (minimum indicating side end) and the other end (maximum indicating side) of the pair of guide walls 21 and 22, and the display member 3 that forms an endless belt-shaped ring is stretched over the driven rollers 41 and 42. Has been.

  The ring gear 43 is formed in a shape corresponding to the shape of the display window using, for example, a synthetic resin material, and is disposed outside the display member 3. Further, the inner periphery of the ring gear 43 corresponding to the drive gear 44 has gear teeth (not shown) coupled to the gear teeth of the drive gear 44, and a part of the gear teeth are part of the display member 3 via the coupling portion 431. Connected with the department.

  The drive gear 44 is made of, for example, a synthetic resin material, and has gear teeth (not shown) connected to the gear teeth of the ring gear 43 on the outer periphery corresponding to the gear teeth of the ring gear 43.

  The drive source 45 is composed of a stepping motor, for example, and rotationally drives the drive gear 44.

  In the drive member 4 configured as described above, when the drive source 45 is rotated according to the measurement amount, the rotation is transmitted in the order of the drive gear 44, the ring gear 43, and the display member 3, and the display member 3 moves in the longitudinal direction. To do. Then, since the boundary part B also moves with the movement of the display member 3, the measured value can be displayed by the movement amount of the display parts 32 and 33.

  In this case, the display unit 32 is continuously formed from the boundary B to the end point indicated by the arrow E, and the length thereof is set to a length capable of displaying the entire area of the display window in the color of the display unit 32. ing.

  The reflecting member 5 is formed by coating a mirror layer on the surface of a base material made of, for example, a synthetic resin. The reflecting member 5 has a shape corresponding to the shape of the display window and has a shape of the display plate 6 positioned immediately below the display window. It is provided in the back position. Further, as shown in FIG. 3, the reflecting member 5 is inclined so as to face both the display window and the display member 3, and images of the display portions 32 and 33 reflected on the mirror layer are passed through the display window. It is visually recognized (in other words, the images of the display units 32 and 33 are visually recognized through the display window by reflecting the images of the display units 32 and 33 to the display window side through the mirror layer).

  The display board 6 has a display window 63 corresponding to the reflecting member 5, for example, by printing the ground portion 61 and the indicator portion 62 on a synthetic resin substrate having translucency by means such as screen printing.

  The indicator unit 62 includes a plurality of scales formed at intervals along the movement activation of the display units 32 and 33, and letters (numbers) corresponding to these scales. In this case, a measured value indicating the vehicle speed as a measured value. It consists of a display unit, and is arranged along only a first display window, which will be described later, out of the display window 63, and is not formed in the display panel 6 region corresponding to the second display window, which will be described later.

  The display window 63 includes a first display window 631 extending from “0” km / h, which is the minimum display value of the indicator section 62, corresponding to “200” km / h, which is the maximum display value of the indicator section 62, and The first display window 631 and the second display window 632 extending continuously in the minus display direction of the indicator 62 beyond the minimum display value “0” km / h.

In the case of this embodiment, the widths of the first and second display windows 631 and 632 are formed to be equal, and the display portions 32 and 33 of the display member 3 are configured to be visible.

The display window 63 is formed of an arc-shaped cutout corresponding to the arrangement shape of the indicator portions 61, but may be a transparent portion or a transparent portion, and the shape thereof is arbitrarily set according to the movement trajectory of the display member 3. The measured amount is displayed by the length of the display section 32 (display section 33) that can be seen through the display window 63 (the length from the boundary section B to the display section 32).

  The lens member 7 is made of a synthetic resin material having translucency, for example, and is fitted and fixed to the display window 63 as a magnifying lens having a convex surface on the viewer side.

The display device configured as described above has a control means including a microcomputer (not shown) for controlling the operation of the drive member 4, and this control means is mounted on the circuit board 1, and an ignition switch (start switch) (not shown). Connected with. When the ignition switch is turned off immediately after the driver gets into the vehicle, the boundary portion B and the display portion 32 are not visually recognized from the display window 63, and only the display portion 33 is removed from the display window 63, as shown in FIG. Visible.

  Thereafter, when the driver turns on the ignition switch, the driving member 4 rotates the display member 3 clockwise based on the control of the control means. Then, the display part 21 and the boundary part B that have been removed from the display window 63 and covered with the display plate 6 until then (when the ignition switch is off) and the boundary part B are moved along with the movement of the display member 3 interlocked with the ignition switch being turned on. Moving clockwise, as shown in FIG. 4B, it is visually recognized from the second display window 632, and 0 km / h which is the minimum display value is instructed by the boundary portion B.

  As described above, in the present embodiment, the display panel 6 having the display window 63 along the indicator section 62 and the display sections 32 and 33 disposed behind the display panel 6 and visible through the display window 63 are provided. The display member 3 made of a flexible band-shaped member having at least two kinds of display portions 32 and 33 of different colors provided on the display surface via the boundary portion B, and a drive member 4 for moving the display member 3 The display window 63 displays the measured value based on the amount of movement (change in length) of the display units 32 and 33 visually recognized through the display window 63. A first display window 631 extending corresponding to the maximum display value of the first display window 632 and a second display window 632 extending continuously in the minus display direction of the indicator portion from the minimum display value. These first and second tables Since the display unit 32 and the boundary B are configured to be visible through the windows 631 and 632, the display unit 32 and the boundary B are viewed through the second display window 632, and thus the display value is small (the minimum display value or Even in this case, it is possible to secure the length of the display unit 32 visually recognized from the display window 62 and improve the visibility.

  In the present embodiment, the driving member 4 is activated by moving the boundary portion B extending over the display portion 32 to a position showing the minimum display value through the second display window 632 based on the ignition switch (activation switch) being turned on. Since the minimum display value is displayed through the second display window 632 when the switch is turned on, the display unit 32 and the boundary B can be recognized in advance before the driving operation.

  In the present embodiment, the index unit 62 includes a measurement value display unit corresponding to the measurement value. The measurement value display unit is provided only along the first display window 631 and corresponds to the second display window 632. By not providing it in the area, the corresponding indicator portion 62 is not formed in the second display window 632, so that the discomfort of display can be eliminated. That is, if there is an indicator portion 62 such as a scale or a number that is not originally required to be displayed on the minus side, the driver may feel uncomfortable, and if there is an unnecessary indicator portion 62, the recognizability may be reduced.

  In the display device according to the second embodiment of the present invention, the entire display member 3 is provided with translucency. That is, the display member 3 includes, for example, a display unit 32 of an arbitrary color having a higher light transmittance than the display unit 33 described later by screen printing or the like on a transparent synthetic resin film, and an arbitrary display unit having a lower light transmittance than the display unit 32. The color display portion 32 and the boundary portion B of an arbitrary color having a predetermined width along the longitudinal direction of the display member 3 and connecting the display portions 32 and 33 to each other and having a higher light transmittance than the display portions 32 and 33. Is forming.

  The display units 32 and 33 and the boundary portion B are transmitted and illuminated by a light source (not shown) mounted on the circuit board 1, and the measurement values are displayed by the transmitted illumination images of the display units 32 and 33 and the boundary portion B. .

Thus, by forming the display portions 32 and 33 and the boundary portion B to be light transmissive, the visibility of the display member 3 can be improved, and by making the light transmittance of the boundary portion B highest, The luminance of the boundary portion B can be made higher than that of the display portions 32 and 33, thereby improving the recognizability.

Although not shown, gradation may be applied to at least one of the display units 32 and 33 so that the transmittance gradually decreases toward the boundary B.

  The display device according to the third embodiment of the present invention is the same as the first embodiment except that the display member 3 is formed with a contour display portion 34 extending in the longitudinal direction.

The contour display unit 34 has, for example, light transparency, is illuminated in a predetermined color by a light source (not shown), and is visually recognized from the display window 63.

By forming the contour display part 34 on the display member 3 in this way, the trajectories of the display parts 32 and 33 and the boundary part B can be recognized and predicted, and the visibility can be improved.

  When the display member 3 is illuminated using a light source, for example, a light-emitting diode capable of emitting multiple colors is used as the light source, so that the display can be displayed when the driver is informed of the danger or abnormal situation such as the approach or failure of another vehicle. By changing the illumination color of the member 3 (display units 32, 33, boundary B) or blinking it, it is possible to recognize an imminent danger or abnormality, for example, when the parking brake is on, the display member 3 (indicator 32, 33, boundary B) is used as a warm color such as red to display a warning or danger to the driver. On the contrary, when the parking brake is off, blue or green By making it cool, the driver may be informed that the vehicle can start.

  In the first to third embodiments, the display member 3 is a flexible display member 3 made of a synthetic resin film. However, the display member may be a flat display such as a liquid crystal display device. Good. In this case, a band-shaped image that is displayed on a flat display and whose length expands or contracts according to the measurement amount is the display unit.

DESCRIPTION OF SYMBOLS 1 Circuit board 2 Case 3 Display member 4 Drive member 5 Reflective member 6 Display board 7 Lens member 21,22 Guide wall (guide member)
31 Display surface 32, 33 Display unit 34 Contour display unit 41, 42 Drive roller 43 Ring gear 44 Drive gear 45 Drive source 46 Drive roller 61 Index unit 63 Display window
431 Connection part 631 1st display part 632 2nd display part B Boundary part

Claims (2)

A display plate having a display window along the indicator, a display member disposed behind the display plate and visible through the display window, and a drive member for moving the display member, In the display device that displays the measurement value by the display unit visually recognized through the window,
The display window extends from the minimum display value of the indicator portion in correspondence with the maximum display value of the indicator portion, and the indicator portion extends from the minimum display value continuously to the first display window. have a second display window that extends in the minus display direction of,
The drive member moves the display unit to a position showing the minimum display value through the second display window based on turning on of a start switch . The vehicle display device according to claim 1, wherein the indicator unit includes a measurement value display unit corresponding to the measurement value, and the measurement value display unit is provided only along the first display window. .

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