JP2014153693A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device whose display parts shaped in number or marks, etc. uniformly emit light with a face-plate made from a no light transmissive material being as a background, and on whose face-plate such the display parts are formed using a simple process.SOLUTION: A display device 1 of the present invention is made from a no light transmissive material and comprises a face-plate 2 on whose front surface a display part 3a is provided and a light source 4 provided on the rear surface side of the face-plate 2 corresponding to the display part 3a. The display part 3a comprises a first layer 31 thickly printed on the front surface of the face-plate 2 and a second layer 33 thickly printed on the first layer 31 so as to represent a number or the like when viewed from the front surface side of the face-plate 2. At least either one of a resin forming the first layer 31 or a resin forming the second layer 33 is mixed with a diffusion agent for diffusing light. On the face-plate 2 opened are a plurality of holes 21 corresponding to the display part 3a, and light from the light source 4 is made incident on the display part 3a through the holes 21.

Description

  The present invention includes a display unit provided on one front surface of the face plate, and a light source disposed on the back side of the face plate corresponding to the display unit, and the display unit represents numbers, symbols, and the like. The present invention relates to a display device that is formed and is lit by light from a light source.

  In the elevator hall, a display device that displays the elevator car position and the like is arranged above the landing-side elevator door, and is used to inform the user who is waiting for the arrival of the car the operation status of the car. Yes. Such a typical display device for an elevator includes a display unit (illuminator) fitted in a face plate, and each display unit is formed in a thick plate shape using a light-transmitting material. The front surface is formed with a pattern representing a number indicating a floor, an arrow indicating a moving direction of the basket, and the like (see, for example, Patent Document 1). A light source is arranged on the back side of each display unit. When a certain light source is turned on, the display unit corresponding to the light source is turned on, and the floor where the car is currently located and the current movement direction of the car are elevators. Informed to users. A pattern corresponding to a floor number or an arrow of the moving direction of the basket is formed on the front surface of the light emitter by printing a non-translucent resin.

  In such a display device, when the printed region of the resin is formed so as to draw numbers and arrows, the numbers and arrows are visually recognized by the user as dark portions when the display unit is turned on. Further, when the resin printing area is formed so as to cut out numbers and arrows, the numbers and arrows are visually recognized by the user as bright portions when the display unit is turned on.

JP 2009-18896 A

  In recent years, from the aesthetics of an elevator hall, a display device in which a floor number or an arrow indicating the direction of movement of a basket lights up or emits light with a face plate formed of a non-translucent material such as stainless steel as a background. Is required. Such a display device could be configured, for example, by fitting a display portion formed of a translucent material so as to represent numbers, arrows, etc. into an opening formed in the face plate. However, the process of manufacturing such a display unit and the process of opening an opening of a shape corresponding to a number, an arrow, etc. in the face plate by laser processing are cumbersome, lengthening the lead time and increasing the manufacturing cost. . In particular, it is very difficult to manufacture and fix a display unit representing a complex pictograph or kanji composed of a plurality of spaced apart parts to a face plate.

  The present invention solves these problems, and is a display device in which a display unit configured in the shape of numbers, symbols, or the like is turned on or emits light with a face plate formed of a non-translucent material as a background. Thus, there is provided a display device capable of producing a display portion on a face plate using a simple process even if characters, symbols, and the like to be displayed are complicated.

  The display device of the present invention has a display unit provided on the front surface, and includes a face plate formed of a non-translucent material and a light source provided on the back side of the face plate. In the display device that is turned on by transmitting light from the light source, the display unit includes a first layer formed on the front surface and a second layer formed on the first layer. The first layer and the second layer are formed using a translucent resin so as to represent numbers, symbols, character strings, or figures as viewed from the front side, and A diffusing agent that diffuses light is mixed in at least one of the resin that forms one layer and the resin that forms the second layer, and a plurality of holes are opened in the face plate, Light from a light source enters the display unit through the plurality of holes, and the first layer has the The resin for forming the first layer is produced by thick printing on the front surface so as to fill and block a number of holes, and the second layer includes the resin for forming the second layer, It is produced by overlay printing on the first layer.

  In the display device according to the aspect of the invention, the plurality of holes may have a tapered shape on the front surface side, and the diffusing agent may be mixed into the resin forming the first layer. Furthermore, the first layer and the second layer may be formed of a UV curable resin.

  In the display device of the present invention, the resin forming the first layer is a colorless resin, the resin forming the second layer is a milky white resin mixed with the diffusing agent, and the second layer A third layer made of a colored resin other than white is thickly printed so as to overlap, and the light source may emit colored light. Furthermore, the first layer, the second layer, and the third layer may be formed of a UV curable resin.

  The display device of the present invention has a display unit provided on the front surface, and includes a face plate formed of a non-translucent material, and a light source provided on the back side of the face plate. In the display device that is turned on by transmitting colored light from the light source, the display unit includes a resin layer formed on the front surface, and the resin layer is viewed from the front surface side. It is formed using a translucent milky white resin to represent numbers, symbols, character strings or figures, and the resin forming the resin layer is mixed with a diffusing agent that diffuses light, A plurality of holes are formed in the face plate, and light from the light source enters the display unit through the plurality of holes, and the resin layer fills and closes the plurality of holes. , Produced by thick printing on the front surface of the resin that forms the resin layer It has been.

  The display device of the present invention is formed of a non-translucent material, a face plate provided with a plurality of display portions on the front surface, and a back surface side of the face plate corresponding to each of the plurality of display portions. Each of the plurality of display units is turned on by transmitting light from the corresponding light source, and each of the plurality of display units is provided on the front surface. A first layer formed on the first layer, and a second layer formed on the first layer, and the first layer and the second layer have numbers, symbols, It is formed using a translucent resin so as to represent a character string or a figure, and light is diffused in at least one of the resin forming the first layer and the resin forming the second layer. The diffusing agent is mixed, and the face plate corresponds to each of the plurality of display portions. A plurality of holes are opened, and light from a light source corresponding to the display unit enters the display unit through the plurality of holes, and the first layer of each of the plurality of display units The resin forming the first layer is produced by thick printing on the front surface so as to fill and close a plurality of holes corresponding to the display portion, and the second layer of each of the plurality of display portions is The resin forming the second layer is produced by overlay printing on the first layer of the display portion.

  The display device of the present invention may be provided in a push button switch, and in the display device, the face plate of the display device may constitute a front portion of a push member.

  In the display device of the present invention, it is configured in the shape of numbers, symbols, character strings, figures, etc., and the display unit that lights up with the face plate as the background is produced by printing the resin on the face plate. Even if the numbers and symbols to be represented are complicated, such a display portion can be easily manufactured on the face plate. Light from the light source enters the display unit through a plurality of holes provided in the face plate, and a diffusing agent is introduced into the first layer or at least one of the first layer and the second layer. Therefore, the display unit emits light uniformly by the light from the light source.

  In the display device of the present invention, the resin layer constituting the display unit is thickly printed. Therefore, when the display device of the present invention is applied to a push button type switch, the display unit is used as a so-called tactile character to the user. Give touch. Thus, according to the present invention, it is possible to obtain a tactile switch in which tactile characters blink.

It is a front view of the display apparatus which is 1st Example of this invention. It is the enlarged view to which a part of FIG. 1 was expanded. It is sectional drawing fractured | ruptured in the plane containing the AA line of FIG. 4A to 4E are explanatory views for explaining a process of forming a display portion on the face plate of the display device according to the first embodiment of the present invention. It is sectional drawing which shows the structure of the display apparatus which is 2nd Example of this invention. It is sectional drawing which shows the structure of the display apparatus which is 3rd Example of this invention. It is sectional drawing which shows the structure of the display apparatus which is 4th Example of this invention. It is sectional drawing which shows the structure of the display apparatus which is 5th Example of this invention. It is a perspective view of a push button type switch to which the present invention is applied.

  Hereinafter, the present invention will be specifically described with reference to the drawings. FIG. 1 is a front view of a display device (1) according to a first embodiment of the present invention. The display device (1) is a display device for an elevator, and is used for a landing-side elevator door provided in the elevator hall to indicate to the user waiting for the arrival of the cage the current position of the cage, the moving direction, etc. Arranged above.

  The display device (1) includes a rectangular face plate (2) and a plurality of display portions (3a-h) arranged on one main surface of the face plate (2), that is, the front face. The face plate (2) is formed of a non-translucent metal material or resin material, for example, stainless steel, and the display portion (3a-h) is formed of a translucent resin material.

  The external shape of the display unit (3a-h) is shaped to represent numbers, symbols, character strings, figures (including pictograms, marks, etc.), etc., as viewed from the front side of the face plate (2). Each of the display sections (3a-e) is formed into a number indicating the floor of the building where the elevator is installed (any one of the first to fifth floors). When e) is illuminated or lit, the floor where the basket is currently located is indicated to the user. In the example illustrated in FIG. 1, the display unit (3a) corresponding to the first floor in the display unit (3a-e) is turned on.

  The display part (3f-g) is shaped in the direction of movement of the basket, that is, in the shape of an arrow (symbol or figure) indicating up or down, and when any of the display parts (3f-g) is lit, The current movement direction of the basket is indicated to the user. In the example shown in FIG. 1, the state where the display unit (3f) indicating the downward arrow is lit is shown. The display section (3h) is shaped to represent the character string “full” and lights up when the basket is full.

  FIG. 2 is an enlarged view of an area including the display unit (3a) and the display unit (3f). FIG. 3 is a plan view of the display device (1) taken along the line AA in FIG. It is sectional drawing which showed typically the pattern seen from the arrow. As shown in these drawings, each display unit (3a-h) includes a first layer (31) provided on the front surface of the face plate (2) and a first layer (31) provided on the first layer (31). And two layers (33). The first layer (31) is formed of a light-transmitting colorless resin mixed with a diffusing agent that diffuses light, and the second layer (33) is formed of a transparent colored resin. . A plurality of (through) holes (21) are formed in the face plate (2) below the first layer (31) of each display section (3a-h). It is covered with one layer (31) and filled with a resin that forms the first layer (31). The hole (21) is opened so that the numbers, symbols, character strings, figures, etc. represented by the display unit (3a-h) are represented by the arrangement of the holes (21) when viewed from the front side of the face plate (2). It is preferable.

  As the diffusing agent mixed in the first layer (31), for example, colorless organic fine particles or inorganic fine particles can be used. Examples of the organic fine particles include polyethylene beads, silicone resin beads, and polystyrene beads. Examples of the inorganic fine particles include silica beads and glass beads.

  On the back side of the face plate (2), a light source (4) corresponding to each display unit (3a-h) is provided. Each light source (4) is appropriately turned on or off by a control mechanism (not shown). The light emitted from each light source (4) enters the first layer (31) corresponding to the light source (4) through the hole (21). Since the diffusing agent is mixed in the first layer (31), the light incident from the hole (21) diffuses in the first layer (31), so that the first layer (31) becomes uniform. Emits light. Then, the second layer (33) emits light in a desired color uniformly by the light from the first layer (31). Each light source (4) is partitioned by a light shielding plate (not shown), and each display unit (3a-h) is separated from a light source other than the light source (4) corresponding to the display unit (3a-h). It is configured not to light up or emit light with the light of.

  For example, an LED light source including a plurality of light emitting diodes is used for each light source (4), but a fluorescent lamp, a light bulb using a filament, or the like may be used. When the second layer (33) is made of milky white resin, the display unit (3a-h) is made to emit light from the light source (4) by using a light source that generates colored light such as red or orange. You may make it light-emit with a color.

  FIGS. 4A to 4E are explanatory views for explaining a process of manufacturing the display portion (3a-h) on the face plate (2) of the display device (1). This process is characterized in that the resin for forming the first layer (31) and the resin for forming the second layer (33) are thickly printed on the face plate (2) so as to close the holes (21). In this embodiment, these resins are printed using a screen printing method.

  First, as shown to Fig.4 (a), the group of the hole (21) corresponding to each display part (3a-h) is opened in the face plate (2). These holes (21) are arranged so as to represent numbers, symbols, character strings, figures, and the like indicated by the front display units (3a-h) when viewed from the front side of the face plate (2).

  Next, as shown in FIG. 4B, a screen printing mask (5) having a printing pattern opening (51) corresponding to the numbers, symbols, character strings, etc. indicated by the display unit (3a-h) is formed. , Placed on the front of the faceplate (2). The screen printing mask (5) is arranged so that a set of holes (21) corresponding to each display section (3a-h) is exposed from the corresponding print pattern opening (51). Thereafter, a resin paste (35) forming the first layer (31) of each display section (3a-h) is printed on the front surface of the face plate (2). The paste (35) enters the hole (21) formed in the face plate (2) and fills the hole (21) (see FIG. 4 (c)).

  In this embodiment, an acrylate-based or epoxy-based UV curable resin is used as the resin for forming the first layer (31), and the mask (5) is printed after the first layer (31) is printed. After the removal, as shown in FIG. 4 (c), a process of curing the printed paste (35) by irradiating ultraviolet rays using an ultraviolet light source (8) is performed.

  Next, as shown in FIG. 4 (d), a screen printing mask (6) having a printing pattern opening (61) corresponding to numbers, symbols, character strings, etc. indicated by the display unit (3a-h) is formed. The resin paste (37), which is placed on the cured first layer (31) and forms the second layer (33) of each display section (3a-h), is applied on the first layer (31). Thick print is printed. As shown in FIGS. 2 and 3, the second layer (33), that is, the paste (37) may be printed such that the first layer (31) slightly protrudes around the second layer (33). The second layer (33) may be printed so as to completely cover the first layer (31), and the edge of the second layer (33) may be disposed on the front surface of the face plate (2). Good.

  In this example, the UV curable resin similar to the above is used for the resin forming the second layer (33), and the mask (6) is removed after the printing of the second layer (33) is completed. After that, as shown in FIG. 4 (e), an ultraviolet light source (8) is used to irradiate ultraviolet rays to cure the printed paste (37). Thereby, the display part (3a-h) is produced on the face plate (2).

  Thus, in the present invention, since the display portion (3a-h) is produced on the face plate (2) using a printing method, the display portion (3a-h) is formed as a separate member to form the face plate (2 The display device (1) can be manufactured very easily as compared to the case of fixing to), and a display portion representing complicated kanji, pictograms, marks, etc. can be easily formed. . Furthermore, the typeface and size of the display unit (3a-h) can be easily changed by changing the number and arrangement of the holes (21) and the shape of the printed pattern opening (51) of the mask (5). it can. Further, according to the present invention, a large number of display portions (3a-h) can be efficiently produced on the face plate (2).

  FIG. 5 is a cross-sectional view corresponding to FIG. 3 and shows the structure of the display device (1) according to the second embodiment of the present invention. In the second embodiment, each hole (21) formed in the face plate (2) extends in a tapered shape on the front side of the face plate (2). On the front side of the face plate (2), the tapered portion (23) provided in each hole (21) is filled with a resin mixed with a diffusing agent (forming the first layer (31)). Therefore, the light from the light source (4) spreads more at the tapered portion (23) and enters the first layer (31). Thereby, the display unit (3a-h) emits light more uniformly.

  FIG. 6 is a cross-sectional view corresponding to FIG. 3 and shows the structure of the display device (1) which is the third embodiment of the present invention. In the third embodiment, the first layer (31) is formed of a colorless and transparent resin, but no diffusing agent is mixed therein. Instead, a diffusing agent is mixed in the resin forming the second layer (33). As the diffusing agent mixed in the second layer (33), colorless organic fine particles and inorganic fine particles can be used, but colored organic fine particles and inorganic fine particles may be used. Thus, in the present invention, the diffusing agent may be mixed in either the first layer (31) or the second layer (33). Further, the diffusing agent may be mixed in both the first layer (31) and the second layer (33).

  FIG. 7 is a cross-sectional view corresponding to FIG. 3 and shows the structure of the display device (1) which is the fourth embodiment of the present invention. As in the third embodiment, the first layer (31) is formed of a colorless and transparent resin in which no diffusing agent is mixed. In the fourth embodiment, the second layer (33) is formed of a diffusing agent. (A white diffusing agent is preferably used as the diffusing agent), and other than white such as red or orange so as to cover the second layer (33). A third layer (39) made of colored resin is formed. The third layer (39) is produced by a screen printing method in the same manner as the first layer (31) and the second layer (33). With such a configuration, in the fourth embodiment, when the light source (4) that emits white light is used, the display unit (3a-h) can emit light evenly and more uniformly. ing. The diffusing agent may be mixed not in the second layer (33) but in the first layer (31).

  In the above-described embodiment, the resin for forming the first layer (31) and the second layer (33) (and the third layer (39)) of the display unit (3a-h) is formed by using the screen printing method. 2), the method of printing the resin for forming the first layer (31) and the second layer (33) is not limited as long as the effects of the present invention can be obtained. Those resins may be printed using a printing technique such as printing. In the above embodiment, a UV curable resin is used as the resin for forming the first layer (31) and the second layer (33). However, as long as the effects of the present invention can be obtained, Other resins such as curable resins may also be used.

  FIG. 8 is a cross-sectional view corresponding to FIG. 3 and shows the structure of the display device (1) which is the fifth embodiment of the present invention. In this embodiment, only the first layer (31) made of milky white resin mixed with a diffusing agent is printed on the face plate (2), and the light source (4) can be red or orange. Light sources that generate colored light are used. For example, the first layer (31) is thicker than the first layer (31) in the previous embodiment, and more specifically, the first layer (31) and the second layer (33) in the first embodiment. The total thickness is about the same. As the diffusing agent mixed in the first layer (31), a white diffusing agent is preferably used.

  In the present invention, the first layer (31) and the second layer (33) (in the fourth embodiment, the first layer (31), the second layer (33), and the third layer (39). In the fifth embodiment, , The display portion (3a-h) composed of the first layer (31) is formed by thick printing on the face plate (2), so that it can be understood from FIG. 3 and FIGS. The display unit (3a-h) is formed in a three-dimensional manner by protruding from the front surface of the face plate (2). Focusing on such features, it is conceivable to apply the present invention to a switch used in an elevator.

  FIG. 9 is a perspective view of a push button type switch (7) which is installed on a car operation panel disposed in an elevator car and used for destination floor (first floor in the embodiment) registration. The switch (7) includes a box-shaped housing (71) and a pressing member (73) accommodated in the housing (71). The pressing member (73) is formed of a non-translucent material, for example, a metal such as stainless steel or aluminum. The protrusion (75) of the push member (73) protrudes forward from the front surface of the housing (71) through the opening (77) provided in the housing (71), and as is well known, the push member (73) ) Is configured to be movable back and forth and urged forward.

  The convex part (75) of the pressing member (73) is hollow, and a display part (3a ') indicating the number of the destination floor is formed on the front face part thereof. The display section (3a ′) is configured like the display section (3a) shown in any of FIGS. 3 and 5 to 8 (the front surface portion of the convex portion (75) of the pressing member (73) is formed. When the light source (not shown) provided in the housing (71) is lit, the light from the light source is applied to the push member (73). The light enters the display section (3a ′) through a hole (not shown) formed in the front surface portion of the convex section (75), and the display section (3a ′) is turned on.

  The switch (7) to which the present invention is applied provides the same advantages as the display device (1) described above for the production of the display unit (3a ′), and the formed display unit (3a ′) is a so-called tactile. Gives the user a tactile feel as a character. As described above, the switch (7) to which the present invention is applied can also be used by visually handicapped persons to specify the destination floor of the basket.

  Although the present invention has been described by taking the elevator display device (1) and the switch (7) as examples, it is obvious that the present invention may be applied to display devices and switches other than elevator display devices and switches. is there. In the display device of the present invention, the number of display units is not limited. For example, only one display unit may be provided.

  The above description is provided to illustrate the present invention and should not be construed as limiting the invention described in the claims or reducing the scope thereof. In addition, the configuration of each part of the present invention is not limited to the above embodiment, and various modifications can be made within the technical scope described in the claims.

(1) Display device
(2) Face plate
(3a-h) Display section
(31) First layer
(33) Second layer
(39) Third layer
(4) Light source
(7) Switch
(73) Push member

Claims (8)

The display unit is provided on the front surface, and includes a face plate formed of a non-translucent material, and a light source provided on the back side of the face plate, and the display unit receives light from the light source. In a display device that is lit by transmitting,
The display unit includes a first layer formed on the front surface, and a second layer formed on the first layer,
The first layer and the second layer are formed using a translucent resin so as to represent numbers, symbols, character strings, or figures as seen from the front side.
At least one of the resin forming the first layer and the resin forming the second layer is mixed with a diffusing agent that diffuses light,
A plurality of holes are opened in the face plate, light from the light source enters the display unit through the plurality of holes,
The first layer is produced by thick printing on the front surface the resin that forms the first layer so as to fill and close the plurality of holes,
The said 2nd layer is a display apparatus produced by carrying out thickness printing by overlapping the resin which forms the said 2nd layer on the said 1st layer.   The display device according to claim 1, wherein the plurality of holes spread in a tapered shape on the front side, and the diffusing agent is mixed in a resin forming the first layer.   The display device according to claim 1, wherein the first layer and the second layer are formed of a UV curable resin.   The resin that forms the first layer is a colorless resin, and the resin that forms the second layer is a milky white resin mixed with the diffusing agent, and is transparent to the second layer. The display device according to claim 1, wherein a third layer made of a colored resin other than white is printed on the surface, and the light source emits colored light.   The display device according to claim 4, wherein the first layer, the second layer, and the third layer are formed of a UV curable resin. The display unit is provided on the front surface, and includes a face plate formed of a non-translucent material and a light source provided on the back side of the face plate, and the display unit includes colored light from the light source. In a display device that is lit by transmitting light,
The display unit includes a resin layer formed on the front surface,
The resin layer is formed using a translucent milky white resin so as to represent numbers, symbols, character strings, or figures as seen from the front side,
The resin that forms the resin layer is mixed with a diffusing agent that diffuses light,
A plurality of holes are opened in the face plate, light from the light source enters the display unit through the plurality of holes,
The said resin layer is a display apparatus produced by carrying out thick printing of the resin which forms the said resin layer on the said front surface so that the said some hole may be filled and plugged up.   It is a pushbutton type switch provided with the display apparatus in any one of Claims 1 thru | or 6, Comprising: The said face plate of the said display apparatus is a switch which comprises the front part of the push member. A face plate made of a non-translucent material and provided with a plurality of display portions on the front surface, and a light source provided on the back surface side of the face plate corresponding to each of the plurality of display portions. And each of the plurality of display units is turned on by transmitting light from a light source corresponding thereto,
Each of the plurality of display units includes a first layer formed on the front surface, and a second layer formed on the first layer,
The first layer and the second layer are formed using a translucent resin so as to represent numbers, symbols, character strings, or figures as seen from the front side.
At least one of the resin forming the first layer and the resin forming the second layer is mixed with a diffusing agent that diffuses light,
In the face plate, a plurality of holes corresponding to each of the plurality of display units are opened, light from a light source corresponding to the display unit is incident on the display unit through the plurality of holes,
The first layer of each of the plurality of display portions is manufactured by embedding the resin forming the first layer on the front surface so as to fill and close the plurality of holes corresponding to the display portion. And
The second layer of each of the plurality of display portions is a display device manufactured by overlay printing the resin forming the second layer on the first layer of the display portion.

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