JP2011095606A - Andon information display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information display device which solves the following problem: there is a limit in making the information display device thinner even when LEDs are used to reduce power consumption. <P>SOLUTION: The information display device is configured such that a plurality of display panels 3, 3a, ... are detachably inserted into each of the openings 2, 2a, ... of a frame 1. Each of the display panels 3, 3a, ... has: an edge light type double-sided light-emitting backlight 9 incorporated in a rectangular frame 8; and translucent plates 10, 10a which are arranged on both sides of the edge light type double-sided light-emitting backlight 9 and on the front face of which display sections 11, 11a are releasably stuck. Plugs 16, 16a are provided at both ends of a control circuit 15 of an light-emitting section 14 of the edge light type double-sided light-emitting backlight 9 so that the plurality of display panels 3, 3a, ... can be connected. On the inner face of vertical frames 4, 4a on one side of the openings 2, 2a, ..., plugs 17, 17a, ... identical to the plug 16a on the other side of the display panels 3, 3a, ... are provided. Since the structure of the display panel can be made extremely thin, the display device as a whole can be made thinner and light-weighed and, even if the number of the LEDs 13, 13a, ... of the light-emitting section 14 is reduced, display can be performed sufficiently. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an ANDON information display device that is installed in a production line of a factory and displays information on whether or not there is an abnormality in at least each production line or each process in each production line (so-called “ANDON” information).

  At the production site of a factory that manufactures automobiles and machines, etc., there are multiple production lines, and each production line also has multiple processes, so it is easy to grasp the operating status of each process and each process of the production line An ANDON information display device is provided for notifying the occurrence of an abnormality or the like, and this ANDON information display device displays information such as the occurrence of an abnormality in each production line or each process in each production line.

  Conventionally, in this ANDON information display device, LEDs having a long life are arranged in a matrix, and a structure in which the optical axis of the LEDs arranged in the matrix is opposed to a transmission filter has been proposed. In this structure, since it is necessary to arrange many LEDs in order to light uniformly and brightly, there are problems such as an increase in power consumption, an increase in size of the device, and an increase in device cost. A plurality of LEDs arranged within the effective viewing angle of the LED, a diffuse reflection member for diffusing and reflecting the light from the LED in an ellipse shape, and arranged in the light projecting direction and diffused by the diffuse reflection member And a diffusion filter for diffusing the reflected light in the direction of light projection. After the light from the LED is diffusely reflected by the diffuse reflection member, it is further diffused by the diffusion filter. Therefore, it is possible to easily illuminate the light emitting surface evenly with a small number of LEDs, thereby reducing power consumption, reducing the thickness (miniaturization) and reducing the cost of the device, and providing the outer surface of the diffusion filter. An apparatus has been developed that can easily identify and display an abnormal machine by describing characters or the like that can identify an abnormal machine (for example, see Patent Document 1).

JP 2004-101778 A (Claims 1 and 3, paragraph numbers [0008], [0012], [0014])

  However, in the above prior art, a reflecting member is built in, and in order to emit light on both sides, two sets of reflecting members and LED groups are necessary, and there is a limit to thinning. There was a problem that had to be done.

  The present invention is based on the above-described prior art, and in view of the problem that there is a limit in thinning the structure even if the LED is used to reduce power consumption, the frame installed on the factory side, and the upper and lower sides of the frame A plurality of display panels detachably fitted in each of the horizontally elongated rectangular openings formed in parallel in the direction, the display panel comprising a rectangular frame and an edge light type incorporated in the rectangular frame A double-sided light-emitting backlight; a light-transmitting plate disposed on both front and back surfaces of the edge-light-type double-sided light-emitting backlight; and a display unit that is detachably attached to the surface of the light-transmitting plate. The light emitting backlight includes a light guide plate capable of emitting both front and back surfaces, a light emitting unit having a plurality of LEDs disposed below the light guide plate, and a light emitting unit control circuit disposed above the light guide plate. At both ends of the control circuit. A plurality of display panels can be connected to the other plug so that one plug can be inserted into and removed from the other plug, and the same as the other plug of the display panel on the inner surface of one vertical frame in the opening. A function of providing a plug, connecting the plug to the control unit, and controlling the display of all the display panels, taking a display control command signal from the line side, and converting it to a signal for supplying to the display panel The control circuit in each display panel determines whether or not the identification number data included in the input signal from the control unit matches the set identification number data. Only in the case, according to the ANDON information display device having the function of turning on / off the LED by controlling ON / OFF based on the display control command data included in the input signal, the display panel is displayed on both sides. As a result, it is possible to make the frame thin, and it is possible to reduce the overall thickness and weight, and display sufficiently even if the number of LEDs is reduced. To solve the above problems.

In short, the present invention has a frame installed on the factory side, and a plurality of display panels that are removably fitted in each of the horizontally-long rectangular openings formed in parallel in the vertical direction of the frame. Therefore, since a plurality of openings are formed, a plurality of types of information can be displayed by preparing different display panels for the openings to be installed.
The display panel includes a rectangular frame, an edge-light double-sided light-emitting backlight incorporated in the rectangular frame, a light-transmitting plate disposed on both front and back surfaces of the edge-light double-sided light-emitting backlight, and the light-transmitting plate The edge light type double-sided light emitting backlight includes a light guide plate capable of emitting both front and back surfaces, and a plurality of LEDs disposed below the light guide plate. Since the display panel can be made very thin because it has the light emitting section and the light emitting section control circuit disposed above the light guide plate, the frame can also be made thin. Therefore, it is possible to secure a sufficient amount of light even if the overall thickness and weight are reduced and the number of LEDs is reduced. When the target is changed, only the display part is peeled off and a new display part is removed. Dealing just by sticking Can.
Also, plugs are provided at both ends of the control circuit, one plug can be inserted into and removed from the other plug, and a plurality of display panels can be connected, and on the inner surface of one vertical frame in the opening, Since the same plug as the other plug of the display panel is provided, and the plug on the frame side is connected to the control unit, it is possible to supply power to all the display panels by connecting a plurality of display panels with plugs. In addition, various signals can be transmitted, and by connecting the connected display panel to the plug on the frame side, the power and various signals output from the control unit can be sent to all the display panels, However, it can be handled simply by adding a display panel as the line is added or removing the corresponding display panel when the line is suspended. It is possible to change to.
The control unit has a function of controlling the display of all the display panels, taking a display control command signal from the line side, and converting it into a signal for supplying to the display panel. Is determined whether or not the identification number data included in the input signal from the control unit matches the set identification number data, and is included in the input signal only when they match. Since it has a function to turn on / off the LED by controlling on / off based on display control command data, according to the signal transmitted from the control unit, the corresponding display panel can be reliably turned on / off, and so on. It is very big.

It is a front view of the ANDON information display apparatus which concerns on this invention. It is a rear view of FIG. It is a front perspective view of a display panel. It is a back perspective view of a display panel. It is a disassembled perspective view of a display panel. It is the center longitudinal cross-sectional view of a display panel. It is a front view of a frame. It is AA sectional drawing of FIG. It is sectional drawing which shows the state which inserted the upper end of the display panel in an insertion process to the upper slide groove. It is sectional drawing which shows the fitting completion state of the display panel in a fitting process. It is a principal part expansion perspective view of the ANDON information display apparatus in which the display panel fitted is unconnected state.

Hereinafter, embodiments of the ANDON information display device according to the present invention will be described with reference to the drawings.
In the ANDON information display apparatus according to the present invention, as shown in FIGS. 1 and 2, a frame 1 installed on the factory side, and a horizontally-long rectangular opening 2 formed in parallel in the vertical direction of the frame 1. , 2a, etc., and a plurality of display panels 3, 3a,.

  In the frame 1, as shown in FIGS. 6 and 7, a plurality of horizontal frames 5, 5 a... , 5a, and the vertical frames 4, 4a form the openings 2, 2a,.

  The display panels 3 and 3a are different in the openings 2 and 2a to be fitted, but the basic structure is the same. Specifically, as shown in FIGS. A rectangular frame 8 composed of vertical frames 6 and 6a and a pair of horizontal frames 7 and 7a, an edge-light double-sided backlight 9 incorporated in the rectangular frame 8, and an edge-light double-sided backlight 9 It has translucent plates 10 and 10a disposed on both front and back surfaces, and the same display portions 11 and 11a that are detachably attached to the surfaces of the translucent plates 10 and 10a.

  As shown in FIG. 5, the edge light type double-sided light emitting backlight 9 includes a light guide plate 12 capable of emitting both front and back surfaces, and a plurality of LEDs 13, 13 a. A light-emitting unit 14 and a control circuit 15 for the light-emitting unit 14 disposed above the light guide plate 12. The plugs 16 and 16a are provided at both ends of the control circuit 15, and one plug 16 is connected. The other plug 16a can be inserted and removed, and one plug 16 protrudes from one vertical frame 6 in the rectangular frame 8, so that one plug 16 of the adjacent display panels 3, 3a. It can be connected without gaps.

  And the difference of the display panels 3, 3a ... by the openings 2, 2a ... to be installed is the color of the translucent plates 10, 10a or the width.

The light guide plate 12 is formed of a thin plate-like body, and introduces light from the light emitting portion 14 into the inside from one end portion thereof and guides it to both the front and back sides of the light guide plate. For example, an acrylic resin material The reflective layer is formed on the side wall surface other than the one end so as not to leak light supplied through the light guide plate from other than the front side and the back side.
Specifically, it is a composite material in which two light guide plates are stacked with a light reflection plate in between, a light diffusing material is mixed uniformly in the transparent substrate material, or both surfaces of the transparent substrate are sandblasted or embossed. In general, light is introduced from one end to the inside of the light guide plate on both the front and back sides of the light guide plate. It only needs to be derivable.

  The same plugs 17, 17a as the other plugs 16a of the display panels 3, 3a are provided on the inner surfaces of the vertical frames 4, 4a in the openings 2, 2a, so that the adjacent display panels 3, 3a,. By inserting and connecting one plug 16, all the display panels 3, 3 a... Are connected to the control unit 20 described later.

In the control unit 20, the plugs 17, 17 a... On the frame 1 side are connected to control the display of all the display panels 3, 3 a, and are connected to a power source (not shown). The display panel 3, 3 a... Can be turned on, and the display control command signal is captured from the line side by wire or wireless, and the input display control command signal is converted into a signal for supplying to the display panel 3, 3 a. have.
Further, the conversion signal includes identification number data for specifying the display panel 3, 3a, which is a display control target, and a display for turning on / off the light emitting unit 14 of the display panel 3, 3a, which is a display control target. Control command data is included.

  The control circuit 15 in each display panel 3, 3a ... determines whether the identification number data included in the input signal from the line side (control unit 20) matches the set identification number data. Only when they match, it has a function to turn on / off the LED by performing ON / OFF control based on display control command data included in the input signal.

In addition, the upper and lower portions of the display panels 3, 3a, ... are slidably fitted to the upper and lower portions of the openings 2, 2a, ... (the upper surface of the lower horizontal frames 5, 5a, ... Forming slide grooves 18, 18a ... to be inserted, the upper slide groove 18a is deeper than the lower slide groove 18, and as shown in FIGS. 8 (a) and 8 (b), it can be inserted and removed in the same manner as a fitting. I have to.
Therefore, an ANDON information display device corresponding to various layouts can be easily realized by adopting a configuration in which a plurality of display panels 3, 3a,.

1 Frame 2, 2a ... Opening 3, 3a ... Display panel 4, 4a Vertical frame 8 Rectangular frame 9 Edge-light double-sided backlight
10, 10a Translucent plate
11, 11a Display
12 Light guide plate
13, 13a ... LED
14 Light emitter
15 Control circuit
16, 16a plug
17, 17a… Plug
20 Control unit

Claims (1)

  A frame installed on the factory side, and a plurality of display panels detachably fitted in each of the horizontally elongated rectangular openings formed in parallel in the vertical direction of the frame, and the display panel is rectangular A frame, a double-sided light-emitting backlight incorporated in the rectangular frame, a translucent plate disposed on both front and back surfaces of the double-sided light-emitting backlight, and releasably attached to the surface of the translucent plate The edge-light double-sided light-emitting backlight includes a light guide plate capable of emitting both front and back surfaces, a light-emitting unit having a plurality of LEDs disposed below the light guide plate, and the light guide. A light emitting unit control circuit disposed above the light plate, and plugs are provided at both ends of the control circuit, so that one plug can be inserted into and removed from the other plug, and a plurality of display panels are provided. One that can be connected and above the opening The same plug as the other plug of the display panel is provided on the inner surface of the vertical frame, and the plug is connected to the control unit. The control unit controls display of all the display panels and displays control command signals from the line side. The identification number data included in the input signal from the control unit and the set identification number data are included in the control circuit in each display panel. It has a function to turn on / off the LED by controlling ON / OFF based on the display control command data included in the input signal only when the two match. Andon information display device.

Images