JPH0541939U - Flat display device - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the workability of assembly work. [Constitution] Case 1 is rear case 2 and front case 5
And the opening end faces are butted and joined by a fastening means such as a screw. On the inner rear surface of the rear case 2, there is provided a pillar 3 which projects toward the front case 5 and has a notch 3a having a rectangular cross section at the corner of the tip. A flat receiving surface 7 is provided on the inner surface of one side of the front case 5, and a rectangular parallelepiped support 8 having a recess 9 is provided on the inner surface of the other side. The opening 9a of the recess 9 has an opening area that is substantially the same as the cross-sectional area of the unit 15, and the height of the bottom surface 9b of the recess 9 is substantially the same as that of the receiving surface 7. On the inner wall of the recess 9, the connecting leaf spring terminals 10 as shown in FIG. 3A are attached in a grid pattern at positions corresponding to the electrodes 20 of the drive circuit board 17.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a display device for displaying characters, numbers, symbols, patterns, etc. by a flat panel display such as VFD, PDP, EL, LCD, CRT, LED, etc., and particularly to a front and back of a flat panel display (hereinafter, simply referred to as a display). The present invention relates to a wiring connection structure applied to the.

[0002]

[Prior Art]

 2. Description of the Related Art Conventionally, in automobiles and the like, VFD (fluorescent display tube), PDP (plasma display panel), EL (electroluminescence), CRT (cathode ray tube) are required in accordance with demands for flattening, thinning, and portability of display media. Various flat panel type display devices using LEDs, LEDs (light emitting diodes) and the like are widely used. The VFD is a phosphor having a slow electron beam excitation and emission characteristic, which is irradiated with thermoelectrons so as to have a display function of letters, numbers, symbols, figures, etc. Normally, a driving circuit board is provided on the back side of the VFD. The drive circuit board wiring and the display panel surface wiring are electrically connected by leads or connection terminals.

FIG. 5 is a perspective view showing the connection structure of the wiring on the surface of the display panel and the wiring on the driving circuit board in the conventional display device. In the figure, reference numeral 16 denotes a VFD flat panel display (hereinafter simply referred to as a display) having wiring on its surface, and an electrode of the wiring is provided at an end (not shown). Reference numeral 17 denotes a drive circuit board arranged on the back surface side of the display 15 and forms the display unit 15 together with the flat panel display 16. 18 is various electronic components mounted on the drive circuit board 17, 19 is a lead terminal, 20 is an electrode of wiring on the drive circuit board 17, and 50 is a U-shaped connection terminal having connection portions 50a and 50b. Is. Then, the electrodes 20 of the drive circuit board 17 and the electrodes of the display 16 are attached so as to be sandwiched between the connection portions 50a and 50b of the connection terminals 50, and the display 16 and the drive circuit board 5 are soldered together. It is electrically connected.

[0004]

[Problems to be solved by the device]

 In the conventional display device connection structure described above, the connection terminals must be inserted between the electrodes and soldered at the connection portions of the connection terminals, which is troublesome and time-consuming. There was a problem that it took extra. The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a display device with improved workability in assembly work.

[0005]

[Means for Solving the Problems]

 In order to achieve this object, a display device according to the present invention is a flat panel in which a housing divided into a front case and a rear case is housed and fixed in the housing, and wiring is provided on a back surface and a front surface. A display, a fitting recess provided on the inner surface of the housing and into which the end of the flat panel display fits, and an electrical connection between the front and back wirings of the flat panel display mounted in the fitting recess. And a connector.

[0006]

[Action]

 In the present invention, by fitting the display in the fitting recess, the wirings on the front and back of the display are electrically connected.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a plan sectional view of a display device according to the present invention, FIG. 2 is a perspective view showing the same assembled state, and FIG. 3 is a side view of the connector portion. In these figures, the casing 1 is entirely made of synthetic resin and is divided into a box-shaped rear case 2 and a front case 5. Are combined. On the inner rear surface of the rear case 2, there is provided a column 3 that projects toward the front case 5 and has a notch 3a having a rectangular cross section at the corner of the tip.

A display window 6 is formed in a substantially central portion of the front surface of the front case 5, a flat receiving surface 7 is formed on the inner surface of one side, and a recess 9 is formed on the inner surface of the other side. The supporting portions 8 are integrally provided on the front case 5. The opening 9a of the recess 9 has a rectangular shape having an opening area substantially the same as the cross-sectional area of the display unit 15, and the bottom 9b of the recess 9 is formed to be substantially the same height as the receiving surface 7. ing. A front glass 11 is attached to the display window 6. On the inner wall of the recess 9, the connecting leaf spring terminals 10 as shown in FIG. 3A are attached in a grid pattern at positions corresponding to the electrodes 20 of the drive circuit board 17.

The connection leaf spring terminal 10 has its tip bent in the same direction, and this portion forms a pair of curved contact portions 10 a. These contact portions 10 a form the electrodes 20 of the drive circuit board 17 and the display 10. It functions as a connector that electrically connects the electrodes. FIG. 3B shows another embodiment of the connecting leaf spring, and the connecting leaf spring 30 has a U-shape in its entirety including a base portion 31 and a pair of arm portions 32. The tip of the arm portion 32 is bent back in a curved shape to provide a contact portion 32a, and the middle portion of the arm portion 32 is provided with a cut-and-raised portion 32b which is cut and raised outward. The cut-and-raised portion 32b prevents the connecting leaf spring 30 from coming out of the recess 9 after being fitted into the recess 9.

The assembly method will be described below. The display 16 and the drive circuit board 17 are assembled as one display unit 15 and housed from above the opening of the front case 5, and the front surface of the display 16 is locked to the receiving surface 7 of the front case 5. In this state, the display unit 15 is slid in the direction A in the figure, and the tip of the display unit 15 is fitted into the recess 9 of the support 8. At this time, since the bottom surface 9b of the recess 9 and the receiving surface 7 have the same height, the fitting is easily performed.

After that, the rear case 2 and the front case 5 are joined together. At this time, the notch 3a of the pillar 3 of the rear case 2 engages with the corner of the rear end of the display unit 15, so that the display unit 15 has the pillar 3, the receiving portion 7, and the supporting portion 8 attached. And will be held and fixed in the housing. As described above, according to this embodiment, the electrode 20 of the drive circuit board 17 and the display 16 can be easily assembled by fitting the tip of the display unit 15 into the recess 9 of the support 8 in the housing. The display unit 15 can be held and fixed while being electrically connected to the electrodes.

FIG. 4 is a side cross-sectional view of a main part showing a second embodiment of the present invention. In this embodiment, in the display unit 15, the display 16 and the drive circuit board 17 have a space. In this case, the support portion 40 provided on the front case 5 is provided with the recesses 40a and 40b at intervals corresponding to the positions of the display 16 and the drive circuit board 17. Also in the second embodiment, the same operational effects as those of the first embodiment described above can be obtained.

Although the above embodiment has exemplified the case where the VFD is used as the display device, the present invention is not limited to this, and other forms such as PDP, EL, LCD, CRT, and LED may be used. It can also be applied to flat panel displays. Further, in this embodiment, the front case is made of synthetic resin and the supporting portion 8 is integrally formed. However, the present invention is not limited to this, and the front case may be made of another member. Needless to say, instead of being integrally formed, it may be integrated by means such as embedding. Needless to say, the support 3 may be integrated with some coupling means instead of being integrally formed.

[0014]

As described above, according to the present invention, a fitting recess for fitting the end of the display is provided on the inner surface of the housing for housing the display, and the fitting recess is mounted in the recess. Since the connector for electrically connecting the front and back wiring of the display is provided, the wiring of the front and back of the display can be electrically connected by a simple work of fitting the tip of the display unit 15 into the recess 9. At the same time, the display unit 15 can be held and fixed, so that the display can be assembled very easily.

[Brief description of drawings]

FIG. 1 is a plan sectional view of a display device according to the present invention.

FIG. 2 is a perspective view showing a mounted state of a display device according to the present invention.

FIG. 3 is a side view of a leaf spring in a display device according to the present invention.

FIG. 4 is a plan sectional view of a main part of a second embodiment of a display device according to the present invention.

FIG. 5 is a perspective view of a main part of a conventional display device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 case 2 rear case 3 support 5 front case 7 receiving surface 8 support 9 fitting recess 10 leaf spring 15 display unit 16 flat panel display 17 drive circuit board 20 electrode 30 leaf spring 40 support

Claims (1)

[Scope of utility model registration request] 1. A housing which is divided into a front case and a rear case, and a flat panel display which is housed and fixed in the housing and whose back and front surfaces are wired.
A fitting recess provided on the inner surface of the housing for fitting an end of the flat panel display, and a connector mounted in the fitting recess for electrically connecting wirings on the front and back sides of the flat panel display are provided. A flat display device characterized in that