JPH08160882A - Display device - Google Patents

Abstract

PURPOSE: To extend the range of use such as a normal direct view use and a head up display use with a simple constitution the value of the display device by switching and displaying a direct view image and a mirror image by a setting angle of the display device main body having a light emitting display section. CONSTITUTION: A display device main body 2 is provided with a light emitting display section 1 in which a first angle and a second angle are made selectable with respect to a base plate section 4 through a supporting section 3. Driving signals from a display driving section 6 are changed by an electric switching section 8 which is switched in accordance with the first and the second angles and a direct view image is displayed by the first angle and a mirror image is displayed by the second angle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mounted on a dashboard of a vehicle, for example, and directly looks at time and vehicle traveling information.
Alternatively, the present invention relates to a display device in which a virtual image can be displayed by a reflector such as a windshield.

[0002]

2. Description of the Related Art Generally, a replaceable display device such as a watch is a simple display face-fixing type device that directly looks straight when used on a table at home or fixedly mounted on a dashboard in a vehicle. It has a structure and is used for a single purpose.

When not only the time but also the traveling information such as the traveling speed of the vehicle is displayed as the display information of such a display device, as shown in Japanese Utility Model Laid-Open No. 61-3130, the dash of the vehicle is proposed. There is one in which a liquid crystal display panel is installed reversibly on a board so that the display contents can be viewed directly or projected on the windshield at each inversion angle.

[0004]

However, since a single-function display device such as a simple interchangeable timepiece uses a light emitting display device such as a transillumination liquid crystal display device or a fluorescent display tube, for example, a dash of a vehicle. In a usage environment where the device is mounted and fixed on a board, when external light is bright, it becomes very difficult to see due to surface reflection and deterioration of contrast.

Further, even if it has a single function, since it is of a direct-view type, it can be used not only as a vehicle but also as a tabletop display device brought into the home, and its use in a vehicle is limited. The display device itself is low in value as well as the visibility of the display under external light is low.

Further, in the display device structure of Japanese Utility Model Laid-Open No. 61-3130 which displays the traveling information of the vehicle on the dashboard of the vehicle, it is true that the driver's direct view display and the virtual image display on the windshield are provided. The display element can be changed by the reversal angle, but since the display element is a liquid crystal display cell and it is a transillumination display in which the display cell is completely inverted, the display element is of a transmissive type. However, the size of the entire display device including the lighting structure is increased, and the structure is completely fixed on the dashboard, so that its use is limited to the inside of the vehicle.

It is an object of the present invention to provide a display device which can use a light emitting display element such as a fluorescent display tube which cannot display the front and back sides, and which can miniaturize the display device and expand its application.

[0008]

A display unit main body having a light emitting display unit, a pedestal unit supporting the display unit main body, and a first unit for displaying the stereoscopic image in one viewing direction by the display unit.
And a second angle for displaying a mirror image that is line-symmetrically or point-symmetrically inverted, and a support portion that supports the display main body so that the display body can be rotated relative to the pedestal portion. An electrical switching unit that switches between the first angle and the second angle in accordance with the angle rotation of the display body, and a switching between the electrical switching unit displays a stereoscopic image and a mirror image on the display unit. It is characterized in that it is configured with a display drive unit.

Further, the pedestal portion is composed of two parallel supporting portions, and both end sides of the supporting portion are respectively constituted by two different fulcrum portions for vertically arranging the display main body and the display main body. Is capable of swinging between the fulcrums between the supporting portions.

Further, the display drive unit is housed in the display body, the drive power supply unit is housed in the pedestal portion, or a display element is arranged in the display body and the display drive unit is installed in the pedestal portion. It is characterized in that it is housed and an external signal input section is provided on the pedestal section, and further that a reflection display section for reflecting a mirror image and displaying a virtual image is provided.

[0011]

When the display unit main body is set at the first angle with respect to the pedestal through the support unit, a stereoscopic image which can be directly viewed and read by the viewer is displayed, and when the display unit main body is set at the second angle, the display unit is electrically operated. A signal from the display drive unit is changed by the switching operation of the switching unit, and a mirror image is displayed on the display unit, so that a virtual image can be displayed by reflection on a reflection display unit arranged oppositely.

[0012]

FIG. 1 shows a drive system diagram of a typical embodiment of the present invention, in which a display main body 2 having a light emitting display section 1 for four-digit display of a day segment composed of a fluorescent display tube,
A display drive unit 6 which is supported by a support unit 3 on a pedestal unit 4 and supplies a drive signal of the light emitting display unit 1 via an electric cord 5 or an energization unit 5 such as a flexible printed circuit board is housed in the pedestal unit 4. ing.

The display drive unit 6 determines its processing circuit and execution program depending on the information content displayed on the light emitting display unit 1. However, in the case of independent information such as a calendar such as time and date, or a clock, it is displayed. It suffices if a single independent operating circuit such as a data memory or a counting circuit is provided. For example, when it is mounted on a vehicle and external data such as traveling information such as traveling speed is required, the external signal input unit 7 having a connector structure is used. It is sufficient to prepare a processing circuit such as a microcomputer which is provided with the above and performs driving and signal processing as well as power supply from an external power supply.

Further, when the switching signal from the electric switching section 8 is inputted to the display drive section 6 and the display content on the light emitting display section 1 is a timepiece, for example, a display image as shown in FIG. 2 is obtained. A display switching processing function for switching the display drive signal is provided.

That is, when 4:37 is displayed,
In the light emitting display unit 1, one of the electric switching units 8 is provided as shown in FIG.
Control is performed so as to display a stereoscopic image as shown in (A), and display is performed at the other position so as to display a mirror image that is inverted in line symmetry as shown in FIG. This mirror image inversion structure is due to the second angle of the display main body 2 with respect to the pedestal 4 in displaying the mirror image as a virtual image on the reflection display section, or the position of the reflection display section with respect to the viewer and the light emission display section. It is determined by the facing positional relationship with 1.

The electric switching section 8 is switched by changing the first angle of the stereoscopic image and the second angle of the mirror image with respect to the pedestal section 4 of the display main body 2, for example, in the support section 3. It can be constituted by a rotary switch, a changeover contact switch, an optical coupling switch or the like provided at the position of the pivot point.

Further, although FIG. 1 illustrates an external connection type structure for inputting and processing an external power source or an external signal, for example, in the case of handling only display contents that can be independently displayed without an external signal such as a clock. In this case, the display drive unit 6 is housed in the display main body 2, and a power supply storage unit such as a battery box is provided in the pedestal unit 4, so that the display device can be freely carried and used.

FIG. 3 shows a specific structural diagram of the display device according to the present invention, which has the components shown in FIG. 1 to switch the image display as shown in FIG. The pedestal part 4 is provided with two parallel supporting parts 3. At both ends of this supporting part 3, upper and lower end engaging parts 2A and 2B corresponding to the upper and lower sides of the light emitting display part 1 of the display body 2 are press-contacted. Engaging fulcrums 3A and 3B are provided.

The engaging portions 2A, 2B and the engaging fulcrum portions 3A,
3B has a structure in which the display main body 2 is erected by elastically engaging in a concavo-convex relationship so as to stand upright at the fulcrum portion 3A or 3B. Etc. may be provided.

The position of the display main body 2 can be changed between the support portions 3 on the pedestal portion 4 by seesaw type swinging with the engagement fulcrums 3A and 3B as fulcrums. Then, in the state of FIG. 3 in which the lower end engaging portion 2B is engaged with the fulcrum portion 3B as the fulcrum, the first angle for displaying the stereoscopic image is obtained as in the display form of FIG. 2A, and the fulcrum portion 3A is used as the fulcrum. As shown in FIG. 2B, at the second angle shown by the broken line in FIG. 3 in which the display main body 2 is oscillated in a seesaw manner so as to be erected and maintained at the upper end engaging portion 2A, a mirror image as shown in FIG. Switch to.

By this switching, the viewer on the side of the stereoscopic image display position can see the virtual image reflected on the reflection display section 9 located opposite to the viewer. For example, the display device is mounted on the dashboard of the vehicle. In this case, by using the windshield as the reflective display unit 9, it can be easily used as a head-up display.

At this time, switching between the stereoscopic image and the mirror image according to the change of the first angle and the second angle is performed by the electric switching unit 8 as shown in FIG. 1, but the structure of FIG. In, for example, the engaging portions 2A, 2 of the display main body 2
By projecting the end of the limit switch to B and storing and fixing the limit switch, the projecting switch knob is pushed inward when engaged with the fulcrums 3A and 3B of the support part 3 to switch and operate. it can.

As a seesaw type structure in which the display body 2 is vertically inverted as shown in FIG. 3, in addition to the structure of the two fulcrums as shown in FIG. 3, the central portion of the display body 2 is used as a fulcrum. The electric switching unit 8 in this case can also be configured by interposing a rotary switch for single axis rotation at its fulcrum.

In the above angle switching structure, the light emitting display unit 1 is turned upside down depending on the display angles of the stereoscopic image and the mirror image, but as shown in FIG. It is also possible to provide the table-shaped support portion 3 and to configure the display body 2 to rotate in the left-right direction as indicated by an arrow T.

In this case, the display form displayed on the light emitting display unit 1 is the second as compared with FIG.
The mirror image at the angular position (the position where the light emitting display unit 1 faces the reflective display unit 9 after being rotated 180 degrees) is processed so as to be switched as shown in FIG. In such a display mode, since each segment of the day-shaped segment can be easily generated by the display drive unit 6, various displays may be set as a mirror image corresponding to the second angular position with respect to the stereoscopic image, and dot display is performed. It is also possible to display characters, patterns and the like.

Further, the shape of the display main body 2 shown in FIG. 4 is configured such that the display portions 1 are provided on the side surfaces of the triangular prism as shown in the figure, and the display portions 1 are provided on two side surfaces, respectively. By making the display contents different from each other, the images can be visually recognized at the same time as the stereoscopic image and the mirror image, and the contents of the stereoscopic image and the mirror image can be easily exchanged by switching the angle by the rotation of the support portion 3. It becomes possible and can be changed freely depending on the importance of the displayed information.

Incidentally, when the display drive unit 6 and the power source are housed on the side of the pedestal unit 4, the energizing unit 5 for transmitting the drive signal to the light emitting display unit 1 is routed in the support unit 3 in the structure shown in FIG. By providing a connection contact at the fulcrum portions 3A and 3B or by connecting the electric cord to the display body 2 side through the inside of the support portion 3, it is possible to eliminate the annoying exposure cord to the outside. Especially for signals, if a transmission system by optical coupling is adopted, a simpler assembly structure can be obtained.

[0028]

As described above, according to the present invention, there is provided the display main body whose angular position can be changed by the support portion with respect to the pedestal portion, and the first angle for displaying the stereoscopic image on the optical display portion and the mirror. It can be changed to the second angle to display the image,
The non-transmissive display element such as the fluorescent display tube is configured by switching between the stereoscopic image signal and the mirror image signal from the display drive section by the electric switching section that switches between the first and second angular positions. Even if it is used, it can be made compact and can easily switch between the stereoscopic display state and the mirror display state, and it can be used as a so-called head-up display device when mounted on the dashboard of a vehicle, as well as a calendar or clock. The independent display information can be easily carried and used as an indoor accessory, and the usage pattern can be widened to increase the value of the display device.

[Brief description of drawings]

FIG. 1 is a diagram showing a typical display device system of the present invention.

FIG. 2 is a display form diagram of a light emitting display unit for explaining a stereoscopic image and a mirror image of the present invention.

FIG. 3 is an external view showing an embodiment of a display device of the present invention.

FIG. 4 is an external view showing another embodiment of the display device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Light emitting display section 2 Display main body 3 Support section 4 Pedestal section 5 Conducting section 6 Display drive section 7 External signal input section 8 Electric switching section 9 Reflection display section

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Nao Yamazoe 190-1, Fujibashi, Nagaoka City, Niigata Prefecture 1 R & D Center, Nippon Seiki Co., Ltd. (72) Harumi Ota 1-1190, Fujihashi, Nagaoka City, Niigata Prefecture Nippon Seiki Co., Ltd. R & D Center (72) Inventor Katsuhiro Tachikawa 1-1190, Fujihashi, Nagaoka City, Niigata Prefecture 1 R & D Center, Japan Seiki Co., Ltd. (72) Iwao Inada 1-1c, Fujihashi, Nagaoka City, Niigata Prefecture Address 1 Nihon Seiki Co., Ltd. R & D Center

Claims (5)

[Claims] 1. A display unit main body having a light emitting display unit, a pedestal unit supporting the display unit main body, a first angle at which the display unit displays a stereoscopic image in one viewing direction, and a line. Second display of mirror image that is symmetrically or point-symmetrically reversed
And a support portion that supports the display body so as to be rotatable relative to the pedestal portion, and the first angle and the second angle according to the angle rotation of the display body. A display device comprising an electric switching unit that switches depending on an angle, and a display driving unit that switches and displays a stereoscopic image and a mirror image on the display unit by switching the electric switching unit. 2. The pedestal portion is composed of two supporting portions that are parallel to each other, and the display body swings between the two supporting portions so that both ends of the supporting portion are pivotally erected as fulcrums. The display device according to claim 1, wherein the display device is configured and an electric switching unit is provided at each of the fulcrums. 3. The display drive section 2 is housed in the display main body, and a power supply section for supplying a drive voltage to the display drive section via an energization section provided in the support section is provided in the pedestal section. The display device according to claim 1, wherein the display device is provided. 4. The display body is provided with a display element constituting the light-emitting display section, the display drive section is housed in the pedestal section, and the pedestal section is provided with an external signal to the display drive section. The display device according to claim 1, further comprising an external signal input section for inputting. 5. The display device according to claim 1, further comprising a reflective display unit that faces the second angular position at which the mirror image is displayed on the display unit and that reflects the mirror image.