JP2009128889A - Luminous display member and luminous display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a luminous display member and a luminous display device wherein LED lenses as light guiding members can be continuously arranged, and then, capable of achieving expression with continuous light irradiation through one or many lenses. <P>SOLUTION: A projecting portion 34a for engaging the lens 2 is provided to one side-surface in the longitudinal direction of a lens holder member 34, and a recessed portion 34b wherein the projecting portion 34a is fitted is provided to the other side-surface. The lenses are connected to one another by fitting the projecting portion 34a to the recessed portion 34b by the adjacent lens holder members 34. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a light-emitting display member and a light-emitting display device that display function information of an operation unit using a light-emitting element in an operation unit such as various switches installed on a voice control console, for example.

  When a broadcast program is produced, an audio adjusting table called a mixer is generally used. A number of audio input devices such as speakers and microphones are connected to the audio adjustment console. In addition, various switches and rotary and slide type operation units are installed. Using these switches and operation units, input line selection, input level setting and correction, tone adjustment, output destination selection and Adjustment parameter setting operation corresponding to several tens of adjustment functions such as adjustment is performed.

  Character information indicating the function for displaying the function of each operation unit is written on the operation unit of the voice adjustment console. Here, in order to clarify the function display of each operation unit, an LED is installed as a light emitting element next to the function display to illuminate, or the function display is written on the surface of the lens such as an acrylic resin, and the function display is written. The function display itself is displayed by installing the LED so as to face the surface opposite to the surface.

  As shown in FIG. 4, the light-emitting display device using LEDs as the light-emitting elements includes an LED 41 installed on a certain substrate, a lens 42 arranged to face the LED 41, and a light-shielding plate 43 that holds the lens 42. , And a knob 44 that shields the periphery of the display surface of the lens 42. That is, with these configurations, light emitted from the LED 41 is incident on the incident surface 42b of the lens 42 and is emitted from the display surface 42a of the lens 42 to the outside.

  By the way, in a light emitting display device using an LED as a conventional light emitting element, light from the device is guided by a lens and illuminates an operation panel surface by a film, but a holder for fixing the lens is independent. Met. For this reason, the operation surface is shielded by covering the lens periphery with the end face of the metal plate plate hole where the film is to be attached. Therefore, continuous illumination is not possible below the metal plate plate processing pitch. There were restrictions.

  For example, when three LEDs and a lens are used to illuminate three locations, in the conventional technology, three holes are made in a metal plate, and the lens in each holder is aligned with the position of the hole in the metal plate. The holder was fixed to the substrate or the metal plate side. In other words, the prior art provides light shielding so that light does not leak around the hole by providing the edge of the peripheral edge of the hole in the metal plate up to the position where the small aperture of the prior art hits the side surface of the lens. It was. However, when a hole is made in a metal plate, the portion between the holes cannot be made thinner or narrower than a certain value, and therefore, the hole cannot be brought closer due to limitations in drilling the metal plate.

  SUMMARY OF THE INVENTION The present invention solves the above-described problems of the prior art, and an object of the present invention is to continuously arrange LED lenses as light guide members and to express by one to many continuous illuminations. An object of the present invention is to provide a light emitting display member and a light emitting display device that can be used.

  In order to solve the above problems, the invention of claim 1 is configured such that one end is opposed to a light emitting element between a substrate on which the light emitting element is installed and a display panel having a display portion through which light from the light emitting element passes. A light-emitting display member used with the other end facing the display unit, which is composed of a rod-shaped light guide member that guides light emitted from the light-emitting element, and a light-shielding material, and the light guide member is inserted in the axial direction. And a holder that covers the outer peripheral side surface of the light guide member. The holder has a plurality of cylindrical insertion holes arranged at equal intervals, and the insertion holes are adjacent to each other. A light-shielding portion for preventing light leakage from the light guide member is provided at the matching boundary.

  The invention of claim 6 comprises a substrate on which a light emitting element is installed and a display panel having a display portion through which light from the light emitting element passes, and one end of the light emitting element is between the light emitting element and the display panel. In the light emitting display device in which the light guide member is disposed opposite to the display unit and the other end faces the display unit, and the outer peripheral side surface of the light guide member is covered with a holder. A cylindrical insertion hole for inserting the optical member in the axial direction, a plurality of the cylindrical insertion holes are arranged at equal intervals, and the insertion hole on the display unit side is adjacent to the adjacent boundary from the light guide member. The light-shielding part which prevents light emission leakage of this is provided.

  According to a second aspect of the present invention, in the first aspect of the invention, the holder is configured by connecting the unit members with the cylindrical body having the insertion hole as one unit member. Features.

  According to a third aspect of the present invention, in the second aspect of the invention, the unit member includes a concave-convex fitting portion on a side surface, and the concave-convex shape engages with each other in the fitting portion. It is characterized by.

  According to a fourth aspect of the present invention, in the first aspect of the invention, the holder is configured such that a plurality of unit members are integrally formed with the cylindrical body having the insertion hole as one unit member. Features.

  In the aspect as described above, a plurality of cylindrical insertion holes are arranged at equal intervals to constitute a holder, and a lens is inserted therein, thereby using the light emitting display member to bring a plurality of displays close to each other. Can be done. In addition, by arranging a plurality of cylindrical insertion holes in the holder continuously, it constitutes one opening in the metal plate as a display panel, and further provides a light shielding part at the boundary with the adjacent light guide member, By preventing light leakage from the adjacent light guide member, there is no restriction on the drilling process of the metal plate as in the prior art, so that a plurality of lenses can be arranged close to each other, and light leakage between the lenses is prevented. Disappear.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the light shielding portion is provided so as to protrude to a position in contact with the display panel.

  According to a seventh aspect of the invention, in the sixth aspect of the invention, the light shielding portion is provided so as to protrude to a position where it comes into contact with the display panel.

  In the aspect as described above, the light shielding portion is provided so as to protrude to the position where it comes into contact with the display panel, so that light leakage from the adjacent light guide member can be reliably prevented.

  The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein the light guide member is configured to be detachable from the insertion hole of the holder.

  In the above aspect, since the colored lens can be easily replaced as the light guide member, the versatility of the light emitting method of the operation panel is improved.

  According to the present invention as described above, the LED lenses that are light guide members can be connected at equal intervals, and light emission that can be expressed by one to many continuous illuminations on the operation panel surface of the film. A display member and a light-emitting display device can be provided.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings.

[1. Constitution]
As shown in FIG. 1, the light emitting display member 1 in the first embodiment of the present invention has a lens 2 (light guide member) that guides light emitted from the light emitting element, and a cylindrical shape that inserts the lens 2 in the axial direction. And a lens holder 3 that covers the outer peripheral side surface of the light guide member.

  As shown in FIG. 3A, the lens 2 is a rod-like body having a rectangular parallelepiped shape as a whole, and includes a flange portion 2a that protrudes from the rod-like body to the outer periphery at one end. Further, as shown in the cross-sectional view of FIG. 2, a protrusion 2 b is formed on the outer peripheral side surface of the other end of the lens 2, and a step portion formed on the inner surface of a lens holder 3 that is a light shielding member described later. And has a structure to engage with. As will be described later, the protrusion 2b is formed on the surface of the lens 2 that faces the LED 4 side. However, the protrusion 2b can be provided on the outer peripheral surface of the lens 2 without any particular limitation.

  Here, as an example, the lens 2 is made of a polycarbonate resin whose basic material is produced from bisphenol A and carbonyl chloride (or diphenyl carbonate). The polycarbonate lens 2 is characterized by lightness, impact resistance, heat resistance, nonflammability, electrical conductivity, and high transparency, and is superior to other synthetic resins. In addition to this carbonate resin, calcium carbonate or the like is mixed as a light diffusing material in order to spread light in the display portion of the display panel.

  Note that the end surface of the lens 2 on the LED 4 side is subjected to a rough surface treatment to diffusely reflect light. By this rough surface treatment, the light emitted from the LED 4 is reflected in various directions on the end surface of the lens 2 on the display unit side. Accordingly, since light emitted from the end face of the lens 2 can be detected from various directions, it is possible to identify highly visible light that is illuminated uniformly even in a three-dimensional space.

  As an example, the lens holder 3 is made of polyacetal (polyoxymethylene), is made of a black light-shielding member so that light from the lens 2 does not leak, and has a cylindrical insertion hole 31 so as to cover the outer periphery of the lens 2. Prepare. As shown in FIG. 1, a lens holder 3 is formed by connecting a covering member formed of one insertion hole 31 as a unit as a lens holder member 34 in parallel.

  In addition, on the upper part of the side surface adjacent to the other holder member 34 of each lens holder member 34 in the lens holder 3, a light shielding portion 32 serving as a partition with the adjacent lens 2 is extended to a position where it abuts on the display panel 6, and the display film By being up to the position where it hits the lower surface of the lens, the side surface of the extended holder prevents light from leaking to the adjacent lens 2 side.

  As shown in the cross-sectional view of FIG. 2, a step portion 33 that engages a protrusion formed on the outer periphery of the lens 2 is provided on the inner peripheral side surface of the insertion hole 31. The shape of the stepped portion 33 is not particularly limited as long as it corresponds to the protruding portion 2 b of the lens 2. In addition, when the lens 2 and the lens holder 3 are fitted, the stepped portion is an inclined surface that is subjected to a taper process or the like along the sliding direction, corresponding to the projecting portion that slides. Further, the lens holder 3 is configured to have a tapered portion and a wall thickness outside the locking portion so that the lens 2 is easily elastically deformed when the lens 2 is inserted into the lens holder 3, and is fitted. Engagement work can be easily performed.

  Here, an example of the multiple connection structure of the lens holder member 34 will be described with reference to FIG. As shown in FIG. 1A, an engaging convex portion 34a is provided on one side surface of the lens holder member 34 in the longitudinal direction, and a concave portion 34b into which the convex portion 34a is fitted is provided on the other side surface. . As shown in FIGS. 1B and 1C, the convex portion 34a and the concave portion 34b are connected by fitting the adjacent lens holder members 34 to each other. Such a connection structure of the lens holder member 34 is an example, and any configuration may be used as long as the lens holder member 34 can be connected in parallel. For example, they may be fixed to each other with an adhesive or the like, or may be stopped with a tape or the like from the outside.

  Polyacetal (commonly known as POM), which is a material of the lens holder 3, is a highly crystalline thermoplastic resin that is a polymer formed by continuous oxymethylene, and has high physical properties and moldability, as well as lubricity and abrasion resistance. Excellent wear resistance, fatigue resistance, creep resistance, chemical resistance, etc.

  Next, FIG. 2 and FIG. 3 show a mode in which the light emitting display member 1 including the lens 2 and the lens holder 3 is used as a light emitting display device in combination with a substrate and a display panel. The LED 4 is used as the light emitting element of the light emitting display member 1 of the present embodiment, and the light emitting display member 1 is disposed between the printed circuit board 5 on which the LED 4 is installed and the display panel 6 having a display unit through which light from the LED 4 passes. The lens 2 is configured such that one end of the lens 2 on the protrusion 2b side faces the LED 4 and the other end faces the display unit.

  Further, a sheet-like member 7 that covers the surface of the lens 2 engaged with the display panel 6 is provided on the upper surface of the display panel 6. This sheet-like member 7 is made of the same polycarbonate as the material of the lens 2, and is provided on the upper surface of the display panel 6 so as to cover the surface of the lens 2 engaged with the display panel 6. On the sheet-like member 7, a transparent portion is formed by a mat printing process on a portion facing the lens 2 to be luminescently displayed, while an opaque portion that does not perform a luminescent display is formed around the transparent portion by a light shielding printing process. ing. Thereby, it is possible to transmit light only at a portion where light emission display is desired, and light which is not displayed can be shielded by back side shading printing.

  The LED 4 used as the light emitting element is a directional self-luminous device having a fixed viewing angle, and is installed on the printed circuit board 5. The LED 4 is of an RGB chip type, and all colors can be expressed by combining red, green, and blue. The light emitted from the LED 4 passes through a lens 2 that is a light guide member to be described later, and is emitted to the outside at the display unit of the display panel 6.

  The display panel 6 is made of a single metal plate, and a large-diameter opening is formed in the metal plate. The edge of this opening part and the outer peripheral part of the connected lens holder 3 engage, and mounting | wearing with the stable display panel 6 and the lens 2 is attained.

  Here, in the present embodiment, the lens holder 3 is composed of a plurality of lens holder members 34, and a plurality of displays are provided close to each other. Then, light shielding by the edge of the metal plate is not performed. Instead, the upper part of the side surface of the holder that is a partition with the adjacent lens 2 is extended to a position higher than the thickness of the metal plate and hits the lower surface of the display film. The configuration prevents light from leaking to the lens 2 side. A large-diameter opening formed in the metal plate corresponds to the display unit.

[2. Effect]
The operational effects of the light emitting display device of the present embodiment having the above-described configuration are as follows.
First, the lens 2 that is a light guide member is fitted into each of the lens holder members 34 that are individual units of the lens holder 3 that is a light shielding member. Specifically, the protrusion 2 b formed on the outer peripheral side surface of the lens 2 and the stepped portion 33 formed on the inner peripheral side surface of the lens holder member 34 are engaged. At the same time, the flange portion 2 a provided on the lens 2 engages with the insertion port of the insertion hole 31 of the lens holder member 34. By such engagement of the protrusion 2b and the stepped portion 33 and engagement of the two portions of the flange portion 2a and the insertion port of the insertion hole 31, the lens 2 and the lens holder member 34 can be stably assembled.

  Next, the lens holder member 34 in which the lens 2 is inserted is connected to each other. Specifically, the convex portion 34a for engaging the lens 2 and the concave portion 34b into which the convex portion 34a is fitted on the other side surface are fitted to one side surface of the lens holder member 34 in the longitudinal direction. To connect.

  Thus, the produced light emission display member 1 is combined with the display panel 6 and the printed circuit board 5, and a light emission display apparatus is produced. That is, when fitting into the opening of the display panel 6, the edge of the opening engages with the outer peripheral portion of the connected lens holder 3. Then, on the upper surface of the display panel 6 so as to cover the surface of the lens 2 appearing from the opening of the display panel 6, there are a transparent portion that performs the matt printing process and an opaque portion that does not perform the luminescence display that has been subjected to the shading printing process. The formed polycarbonate sheet-like member 7 is attached.

  Thereby, the lens 2 is sandwiched and fixed by the lens holder 3, which is a light-shielding member engaged with the outer peripheral side surface of the lens 2, and the sheet-like member 7. Then, the light emitting display device is completed by assembling the printed board 5 on which the LEDs 4 are installed so as to face the lens 2 to the lens holder 3.

  In the light-emitting display device assembled in this way, the LED 4 installed on the printed circuit board 5 emits light so that the light is diffused and guided in the lens 2 that is the light guide member and is attached to the upper surface of the display panel 6. The light is uniformly illuminated in such a manner that each color can be identified from the transparent portion subjected to the mat printing process as the light emitting display portion of the member 7.

  According to the present embodiment as described above, the lens holder 3 is composed of a plurality of lens holder members 34, a plurality of displays are performed in close proximity, and the opening made of a metal plate is taken as one, and the adjacent lens 2. No light is blocked by the edge of the metal plate.

  Instead, by extending the light-shielding portion on the side surface of the holder that is a partition with the adjacent lens 2 to a position higher than the thickness of the metal plate and hitting the lower surface of the display film, In this configuration, light is prevented from leaking to the lens 2 side. As a result, there is no restriction in drilling a metal plate as in the prior art, so that a plurality of lenses can be arranged close to each other, and light leakage between the lenses is eliminated.

[3. Other Embodiments]
The present invention is not limited to the aspect shown in the above embodiment, and includes the following aspects, for example. In the above embodiment, the lens holder member 34 is used as a unit, and a plurality of the lens holder members 34 are connected to form the lens holder 3. However, the present invention is not limited to this, and a plurality of lens holder members 34 are provided. A configuration in which the combined lens holder 3 is integrally molded is also included.

  In the present embodiment, the lens holder 3 is connected to the three cylindrical insertion holes. However, the number of the cylindrical insertion holes of the lens holder 3 is not limited to this. It can be arbitrarily set according to the purpose. As a result, even when functional information having a relatively large area is displayed, it is possible to diffuse and guide the light with a sufficient amount of light, so that the functional information can be clearly displayed with a uniform emission color.

  Further, in the present embodiment, the protrusion is formed on the outer periphery of the lens 2, but this protrusion is formed on the inner periphery of the lens holder 3 that is a light shielding member, and a step portion that engages with the protrusion is formed on the outer periphery of the lens 2. It is also possible to have a configuration formed in the above. In this case, the stepped portion of the lens 2 has a configuration in which an inclined surface is formed by taper processing or the like along the direction in which the stepped portion slides.

The side view which shows the structure of the issue display member in embodiment of this invention. Sectional drawing which shows the structure of the issue display member in embodiment of this invention. The exploded view (a) and completed figure (b) which show the structure of the issue display apparatus in embodiment of this invention. Sectional drawing which shows a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Light emission display member 2 ... Lens 2a ... Flange part 2b ... Projection part 3 ... Lens holder 31 ... Insertion hole 32 ... Light-shielding part 33 ... Step part 34 ... Lens holder member 34a ... Convex part 34b ... Concave part 4 ... LED
41 ... LED
42 ... Lens 42a ... Incident surface 42b ... Display surface 43 ... Shading plate 44 ... Knob 5 ... Printed circuit board 6 ... Display panel 7 ... Sheet-like member

Claims (8)

A light emitting display member used between a substrate on which a light emitting element is installed and a display panel having a display unit through which light from the light emitting element passes, with one end facing the light emitting element and the other end facing the display unit. There,
A rod-shaped light guide member that guides light emitted from the light emitting element;
It is made of a light-shielding material, has a cylindrical insertion hole for inserting the light guide member in the axial direction, and includes a holder that covers the outer peripheral side surface of the light guide member,
The holder has a plurality of the cylindrical insertion holes arranged at equal intervals, and a light shielding display for preventing light leakage from a light guide member at a boundary adjacent to the insertion holes. Element.   The light-emitting display member according to claim 1, wherein the holder is configured by connecting the unit members using the cylindrical body having the insertion hole as one unit member.   The light emitting display member according to claim 2, wherein the unit member includes a concave and convex fitting portion on a side surface, and the concave and convex shapes are locked to each other in the fitting portion.   The light-emitting display member according to claim 1, wherein the holder includes a cylindrical body having the insertion hole as a unit member, and a plurality of the unit members are integrally formed.   The light-emitting display member according to claim 1, wherein the light-shielding portion is provided so as to protrude to a position where it comes into contact with the display panel.   The light-emitting display member according to claim 1, wherein the light guide member is configured to be detachable with respect to an insertion hole of the holder. A substrate having a light emitting element and a display panel having a display unit through which light from the light emitting element passes, one end facing the light emitting element and the other end displaying between the light emitting element and the display panel In the light emitting display device in which the light guide member facing the part is disposed and the outer peripheral side surface of the light guide member is covered with the holder,
The holder is made of a light-shielding material, has a cylindrical insertion hole for inserting the light guide member in the axial direction, and arranges the cylindrical insertion holes at a plurality of equal intervals, and on the display unit side A light-emitting display device comprising a light-shielding portion for preventing light leakage from a light guide member at a boundary adjacent to the insertion hole.   The light-emitting display device according to claim 7, wherein the light-shielding portion protrudes to a position where the light-shielding portion contacts the display panel.

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