JPH09274454A - Display controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to form an emissive display means into simple constitution and to easily carry out production and assembly by exposing a lighting display circuit board from a front surface panel and further, affixing a character plate formed with light transparent windows thereto from its front surface. SOLUTION: This display controller A is constituted by housing the lighting display circuit board 2 packaged with light emitting elements 21 constituting digital light emitting parts 2a into a unit body 1, exposing the circuit board 2 from the front surface panel 3 bored with through-hole parts 31 and further, affixing the character plate 4 formed with the light transparent windows 41 meeting the through-hole part 31 from its front surface. The digital light emitting parts 2a are formed by surface packaging LED chips, etc., as the light emitting elements 21. The digital light emitting parts 2a is constituted by face-packaging LEDs chips, etc., as the eight emitting element 21. The front surface panel 3 is made of a hardly thermally deformable material and is provided with the through-hole parts 31 so as to be aligned to the positions of the digital light emitting parts 2a. The character plate 4 is composed of an acrylic plate, etc., and the light transparent windows 41 are held transparent. On the other hand, the surfaces of the other parts are coated matte and black by printing, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in the structure of a display controller preferably used in a wireless call system.

[0002]

2. Description of the Related Art In recent years, a large family restaurant or the like has adopted a wireless call system so that it can promptly and fairly provide services to a plurality of customers' requests. In the wireless call system, when the display control device is installed at a position where a waiter, waitress, etc. can be easily seen, and when the wireless transmitter attached to each table is operated, the wireless receiver built into this display control device causes the wireless signal to be transmitted. In response to this, the number of the called table is displayed on the display window of the display control device.

Therefore, conventionally, the following proposals have been made regarding the display of the display control device. The first display mode uses an internally lit lamp. When a call is received from any of the tables, a plurality of display windows in which the table numbers and the like are written are provided in advance corresponding to each table. , The lamp of the display window corresponding to the table is turned on or blinked from the back side to display the table number.

The second display mode uses a plurality of 7-segment blocks, and when a call is received from the table, table numbers and the like are arranged in a display window having the 7-segment blocks arranged on the printed circuit board. It is displayed while changing.

[0005]

However, in the above-mentioned conventional display control device, since the display contents such as the table number are fixed in the internally illuminated type using the lamp, it is easy to change the display contents. It was necessary to provide the same number of display windows as tables and the like. Further, since the display numbers and the like cannot be rearranged or moved, there is a problem that the calling order and the like cannot be known and the display contents are difficult to recognize.

The one using the 7-segment block can solve the above-mentioned problems, but the 7-segment block is relatively expensive, and it is constructed as one electronic component, and the shape and size of the number to be displayed are large. Since it was decided in advance, it was not possible to display numbers or letters in the original shape. Further, the shape of the front panel needs to be manufactured in conformity with the shape of the 7-segment block mounted on the circuit board.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a display control device in which the light emitting display means has a simple structure and which facilitates the manufacture and assembly of the device.

[0008]

In order to achieve the above object, a display control device according to a first aspect of the present invention is provided with a light emitting element such as an LED chip, which is housed inside a unit body and constitutes a digital light emitting portion, and is turned on. The display circuit board has a structure in which the display panel is exposed from the surface panel in which the through holes are perforated, and a dial having a transparent window corresponding to the through holes is attached from the upper surface thereof. As a result, a digital display unit can be configured on the front panel. Here, the number of lighting display circuit boards and dials corresponding to the front panel may be plural.

In the display controller according to the second aspect of the present invention, the digital display section formed by punching the through hole in the front panel is mounted on one lighting display circuit board to form the digital light emitting section. A light emitting element such as an LED chip is exposed from the through hole portion of the front panel, and one dial plate having a transparent window is attached to the front panel. By constructing one lighting display circuit board and one dial, the assembly of this device is simplified.

A display control device according to a third aspect of the present invention has a structure in which a diffusion film is inserted between the dial plate and the surface panel having a through hole. By inserting the diffusion film, the light of the light emitting element can be diffused uniformly. In the display control device according to the fourth aspect, the dial plate is structured to be fitted into the recess formed in the front panel.

A display control device according to a fifth aspect of the invention has a built-in wireless reception processing circuit, receives a wireless calling signal, and displays a display number corresponding to the calling signal on a digital display portion of the front panel. Let it be configured to. Therefore, this display control device is preferably used for a wireless call system. The display numbers include table numbers and room numbers assigned to individual wireless transmitters.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded view showing an example of the structure of a display control device according to the present invention. This display control device A accommodates a lighting display circuit board 2 in which a light emitting element 21 constituting a digital light emitting portion 2a is mounted inside a unit main body 1, and a surface panel 3 in which a through hole portion 31 is punched in the substrate 2. A dial 4 that is more exposed and has a light-transmitting window 41 (display window) corresponding to the through-hole portion 31 formed on the upper surface thereof.
Is attached.

Here, an LED chip or the like is surface-mounted as the light-emitting element 21 on the lighting display circuit board 2 to form a digital light-emitting portion 2a, and the light emitted from the front panel 3 is apparently surface-emitting. Therefore, the portion of the digital light emitting portion 2a is painted white. Further, the front panel 3 is made of a material which is hard to be deformed by heat, and the through hole portion 31 is provided so as to match the position of the digital light emitting portion 2a. The dial 4 is made of an acrylic plate or the like, and the translucent window 41 is left transparent, while the surface of the other portion is matt-painted by printing or the like, and the back surface is light-absorbed. It is painted white to increase the brightness of the digital light emitting unit 3a.

In this figure, the lighting display circuit board 2 and the dial 4 are both composed of one sheet, and the digital display section 3a formed on the front panel 3 is a digital light emitting section of the lighting display circuit board 2. 2a to the through hole 31 of the front panel 3.
It is constructed by making it more exposed, and has a structure in which the dial 4 is attached thereon. However, in the present invention, the lighting display circuit board 2 and the dial plate 4 may each be formed in a plurality, or may be formed in different sizes.

FIG. 2 shows a partially enlarged view of the lighting display circuit board 2. Here, a digital light emitting unit 2a for showing a two-digit number is shown, and 29 LED chips (light emitting elements 21) are used. If you do this,
It can fulfill the same light emitting display function as the 7-segment block. Next, FIG. 3 shows a schematic cross-sectional view of the display control device A.

In the display control device A, the lighting display circuit board 2 in which the light emitting element 21 is mounted on the unit main body 1 as described above is incorporated, and the light emitting element 21 is exposed from the through hole 31 on the lighting display circuit board 2. The front panel 3 is overlaid. Further, the diffusing film 5 made of a milky white polyester film or the like is inserted into the concave portion 32 of the front panel 3 to fit the dial plate 4. In this way, the structure in which the dial 4 and the front panel 3 are attached to each other facilitates the assembling, and the front panel 3 can be made flush so that it looks good.

Incidentally, here, the through hole portion 3 of the surface cover 3 is provided.
Since 1 is provided in a vertical hole type until it reaches the lighting display circuit board 2, the light of the light emitting element 21 can be prevented from leaking into the device, and the digital light emitting section 2a efficiently emits light to the digital display section 3a. You can Next, a case where the display control device A is used in a wireless call system will be described.

FIG. 4 is an external view when the exploded view shown in FIG. 1 is assembled, and by incorporating a wireless reception processing circuit therein, it can be used in a wireless call system. FIG. 5 is a block diagram showing the configuration of the wireless reception processing circuit 50. The wireless reception processing circuit 50 includes a signal processing unit 51 including a CPU and the like,
A signal reception unit 52 that includes one or a plurality of antennas ANT and receives a signal transmitted from a wireless transmitter (not shown), a demodulation unit 53 that demodulates the received signal, a waveform shaping unit 54, and oscillation control A PLL control unit 55 for performing, a ringing tone output unit 56 including a speaker SP, which outputs a ringing tone when a ringing signal is received, and a plurality of display windows (transparent window 4).
1) equipped with a display unit 57, a setting input unit 58 including a switch for switching operation modes, and RA
IDs of all transmitters that are composed of M etc. and are to be received
An ID code registration unit 59 in which a code is registered in advance and a power supply unit 60 that supplies power to each unit are provided.

In the wireless reception processing circuit 50, the signal receiving section 52 receives the wireless calling signal, and the display number corresponding to the calling signal is lit or blinked on the digital display section 3a of the front panel 3 by the display section 57. Let Incidentally, the display of the display number is performed by decoding the ID code from the calling signal and displaying the number corresponding to the decoded ID code from one digital display unit 3a. For example, if the ID code of the transmitter and the table number are stored in advance in the reception processing circuit 50, if the calling signal is received from the transmitter, the table number corresponding to this is displayed. Can be done.

There are two display methods: a method of displaying the display numbers corresponding to the ID codes in the order of reception, and a method of rearranging and displaying the display numbers in the order of priority set in advance. The priority order is, for example, a table table (display number) in ascending order or a case where VIP seats or reserved seats are prioritized. FIG.
Shows an example when the images are displayed in order of priority.

Here, the display order on the digital display section 3a is such that the display numbers are displayed in ascending order, from left to right in the upper stage and from left to right in the lower stage (in the figure, the display number is "21"). This is the case where there are only four, "46", "51", and "61"). In this case, when the service for the calling signal is finished, the corresponding display number is erased from the digital display section 3a, but at this time, the numbers are again arranged and displayed in ascending order of the numbers.

[0022]

As can be understood from the above description, the display control device according to the first to fifth aspects of the present invention has the following effects. According to the first aspect, by exposing the lighting display circuit board on which the light emitting element is mounted from the through hole formed in the front panel, the digital display section can be formed in the front panel with a simple configuration. Therefore, the digital display unit can be configured easily and inexpensively as compared with the case where the 7-segment block is used as in the related art. Further, the arrangement of the light emitting elements, the shape of the through hole portion of the front panel, and the shape of the light transmitting window of the dial plate can be freely configured to enable an original display.

According to the second aspect, since the lighting display circuit board and the dial are composed of one sheet, even when it is desired to display a plurality of characters, a plurality of light emitting elements are provided only for one board. It suffices to arrange them, and since it is not necessary to provide wiring to each block as in the conventional 7-segment block, manufacturing becomes efficient. Further, the device can be easily assembled only by combining the lighting display circuit board and the dial with the front panel.

According to the third aspect, since the diffusion film is interposed between the dial and the front panel, the light of the light emitting element can be uniformly diffused from the digital display section. According to the fourth aspect, the dial can be fitted into the recess formed in the front panel, so that the assembly can be facilitated and the positions of the digital light emitting unit and the digital display unit can be accurately aligned. I can.

According to the fifth aspect, since the wireless reception processing circuit is built in, the wireless calling signal can be received, and the display number corresponding to the calling signal can be displayed on the digital display portion of the front panel. It can be suitably used for a wireless call system.

[Brief description of drawings]

FIG. 1 is an exploded view showing an example of a structure of a display control device according to the present invention.

FIG. 2 is a partially enlarged view showing an example of the configuration of a lighting display circuit board.

FIG. 3 is a schematic cross-sectional view showing an example of the structure of the display control device according to the present invention.

FIG. 4 is an external view showing an example of the configuration of a display control device according to the present invention.

FIG. 5 is a block diagram showing an example of an internal configuration of a wireless reception processing circuit.

FIG. 6 is a diagram showing an example of a digital display of the display control device according to the present invention.

[Explanation of symbols]

 A ... Display control system according to the present invention 1 ... Unit body 2 ... Lighting display circuit board 2a ... Digital light emitting section 21 ... Light emitting element (LED chip) 3 ... Surface panel 3a. ..Digital display part 31 ... Through hole part 32 ... Recess 4 ... Dial 41 ... Translucent window 5 ... Diffusion film 50 ... Wireless reception processing circuit 51 ... Signal Processing unit 52 ... Signal receiving unit 57 ... Display unit

Claims (5)

[Claims] 1. A display control device in which a digital display unit is provided on a front panel, wherein a lighting display circuit board, which is housed inside a unit main body and mounted with a light emitting element such as an LED chip constituting a digital light emitting unit, has a through hole. The display control device has a structure in which a perforated front panel is exposed, and a dial having a translucent window corresponding to the translucent portion is attached from the upper surface thereof. 2. A digital display section formed by perforating a through hole in the front panel forms a digital light emitting section, and therefore a light emitting element such as an LED chip mounted on one lighting display circuit board is formed. The display control device according to claim 1, wherein the display panel is configured such that one dial plate having a transparent window is attached to the front panel while exposing the front panel through the through hole. 3. The display control device according to claim 1 or 2, wherein a diffusion film is interposed between the dial plate and the surface panel having the through holes. 4. The display control device according to claim 1, wherein the dial plate is structured to be fitted in a recess formed in the front panel. 5. The display control device has a built-in wireless reception processing circuit, receives a wireless ringing signal,
The display control device according to claim 1, wherein a display number corresponding to the calling signal is displayed on the digital display unit of the front panel.