WO1996018987A1 - Dispositif d'affichage luminescent pour enseignes - Google Patents

Dispositif d'affichage luminescent pour enseignes Download PDF

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Publication number
WO1996018987A1
WO1996018987A1 PCT/US1995/015990 US9515990W WO9618987A1 WO 1996018987 A1 WO1996018987 A1 WO 1996018987A1 US 9515990 W US9515990 W US 9515990W WO 9618987 A1 WO9618987 A1 WO 9618987A1
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WO
WIPO (PCT)
Prior art keywords
discharge
display device
signs
discharge chamber
luminescence display
Prior art date
Application number
PCT/US1995/015990
Other languages
English (en)
Inventor
Myong C. Kim
Original Assignee
Kim Myong C
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kim Myong C filed Critical Kim Myong C
Publication of WO1996018987A1 publication Critical patent/WO1996018987A1/fr

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/26—Signs formed by electric discharge tubes

Definitions

  • the present invention relates to a luminescence display device for signs using the principle of gas discharge such as that employed in a neon sign, and more particularly, to a luminescence display device for signs, being manufactured as a panel-type by which figures are combined in a series and protruded to then be illuminated, or a letter-type by which the figures are individually formed to then be illuminated.
  • a luminescence display device for signs being manufactured as a panel-type by which figures are combined in a series and protruded to then be illuminated, or a letter-type by which the figures are individually formed to then be illuminated.
  • all luminescent neon signs whether they be installed indoors or outdoors, adopt a cold cathode discharge lamp which is formed in such a manner that a relatively thin and constant-diameter vitreous tube is heated by a heating instrument, bent into the desired letter or figure form, and filled with an inert gas such as neon or argon.
  • U.S. Patent No. 5,198,723 is difficult to manufacture in large sizes because of its fragile structure and should be operated such that the entire electrode is switched on and off in order to prevent discharge from concentrating on a specific portion of anode and cathode.
  • a device disclosed in U.S. Patent No. 4,990,826 operates at a low voltage.
  • the arrangement of conductive wires for the device is unsuitable for adoption to a discharge device in which diversely shaped discharge spaces are compositely formed.
  • the conductive wires are to be dispersed throughout the panel, it is quite difficult to apply electrical signals thereto.
  • 5,159,772 are adoptable for the formation of illuminating letters having constant line widths (for example, Bauhaus or Helvetica styles) .
  • constant line widths for example, Bauhaus or Helvetica styles
  • uniform illumination cannot be achieved for letters having inconsistent line widths (for example, Cooper or Times styles) .
  • the devices according to Winship and Ford require separate frames for installation onto a wall or other such surface.
  • the Winship device needs a hole for installing a connection apparatus for the safe supplying of high-voltage electricity through the mounting surface, and the Akaley device has a poor appearance, which is an important factor in this field.
  • the principal object of the present invention is to provide a luminescence display device for signs which can be manufactured in large quantities using molds and can provide for uniform illumination throughout the entire luminescent portion regardless of shape of the desired letters or figures.
  • Another object of the present invention is to provide a luminescence display device for signs which can improve the effect of advertisement, in addition to the above feature, by enabling the use of multiple colors or color blends together with luminosity variation.
  • Still another object of the present invention is to provide a luminescence display device for signs which has a good appearance and can be easily installed.
  • the luminescence display device for signs for illuminating letters or figures comprises: a front panel member having at least one display unit protruding from the front surface thereof, in the form of the letters or figures, and a discharge space formed within the display unit; a rear panel member laminated onto the rear side of the front panel member, wherein a discharge chamber is formed by sealing the discharge space; gas filling means for evacuating the discharge chamber and then filling the discharge chamber with a predetermined gas; and discharging means for emitting electrons into the discharge chamber so that the display unit is illuminated.
  • the luminescence display device for signs for illuminating figures comprises: a display member formed into the letters or figures to be displayed, having a front panel, a rear panel and an internally formed discharge space, the rear part of which being open; a rear panel cover member admitted from the rear part of the display member to the inside thereof, for forming a discharge chamber by sealing the discharge space; gas filling means for evacuating the discharge chamber and filling the discharge chamber with gas; and at least one pair of discharge electrodes for emitting electrons into the discharge chamber so that the entire display member is illuminated.
  • FIG.l is a perspective view for showing the appearance of the panel-type luminescence display device according to the present invention
  • FIG.2 is an exploded perspective view of a part of the panel-type luminescence display device according a first embodiment of the present invention
  • FIG.3 is a cross-sectional view of the panel-type luminescence display device shown in FIG.2 along line A-A shown in FIG.1;
  • FIG.4 is a cross-sectional view of the panel-type luminescence display device shown in FIG.2 along line B-B shown in FIG.1;
  • FIG.5 is an exploded perspective view of a part of the panel-type luminescence display device according a second embodiment of the present invention.
  • FIG.6 is an exploded perspective view of a part of the panel-type luminescence display device according a third embodiment of the present invention.
  • FIG.7 is an exploded perspective view of a part of the panel-type luminescence display device according a fourth embodiment of the present invention
  • FIG.8 is a cross-sectional view of the panel-type luminescence display device shown in FIG.7 along line C-C shown in FIG.1;
  • FIG.9 is a cross-sectional view of the panel-type luminescence display devices shown in FIGs.6 and 7 along line A-A shown in FIG.l;
  • FIG.10 is an exploded perspective view of a part of the panel-type luminescence display device according a fifth embodiment of the present invention.
  • FIG.11 is an exploded perspective view of a part of the panel-type luminescence display device according a sixth embodiment of the present invention.
  • FIG.12 is a cross-sectional view of the panel-type luminescence display device shown in FIG.11 along line C-C shown in FIG.l;
  • FIG.13 is an exploded perspective view of a part of the panel-type luminescence display device according a seventh embodiment of the present invention
  • FIG.14 is a perspective view for explaining the state of the panel-type luminescence display devices according to the present invention, being combined with each other;
  • FIG.15 is an exploded perspective view of a part of the panel-type luminescence display device according an eighth embodiment of the present invention.
  • FIG.16 is a perspective view for showing the appearance of the letter-type luminescence display device according to the present invention.
  • FIG.17 is an exploded perspective view of a part of the letter-type luminescence display device according a ninth embodiment of the present invention.
  • FIG.18 is an exploded perspective view for explaining the installed state of discharge electrode of the letter-type luminescence display device shown in FIG.17 with respect to the rear cover;
  • FIG.19 is a cross-sectional view of the letter-type luminescence display device shown in FIG.17 along line D-D shown in FIG.16;
  • FIG.20 is a cross-sectional view for showing another structure example of the letter-type luminescence display device shown in FIG.19;
  • FIG.21 is an exploded perspective view of a part of the letter-type luminescence display device according a tenth embodiment of the present invention.
  • FIG.22 is an exploded perspective view of a part of the letter-type luminescence display device according an eleventh embodiment of the present invention
  • FIG.23 is a partly exploded front view of a part of the letter-type luminescence display device according to the twelfth embodiment of the present invention
  • FIG.24 is a cross-sectional view for FIG.23 along line E- E;
  • FIG.25 a perspective view of an apparatus for installing on the wall the letter-type luminescence display device according to the present invention.
  • FIG.26 is a partly cross-sectional view showing the installment state of the letter-type luminescence display device according the present invention
  • FIG.l is a perspective view of the basic appearance of the panel-type luminescence display devices according to first through seventh embodiments of the present invention.
  • the panel-type luminescence display device 1 is a non-conductor and has a laminated structure of twofold or threefold transparent or semi-transparent glass plates.
  • the panel- type luminescence display device 1 includes a display unit 2 on a front panel thereof, by which figures are to be illuminated. In this case, the letters "O" and "N" are shown as an example of the figures for illumination.
  • the panel-type luminescerfce display device includes a front panel 3 having the aforementioned display unit 2, a rear panel 4 laminated onto the rear side of the front panel 3, and conductive wiring 5 provided between the front panel 3 and rear panel .
  • the front panel 3 has discharge spaces 6a and 6b formed within the display unit 2.
  • a partition barrier 7 is formed in the discharge space 6a for the letter "O" so as to interrupt and form the endless channel into a channel with ends.
  • the rear panel 4 has evacuation holes 8a and 8b formed so as to communicate with the discharge spaces 6a and 6b, respectively.
  • the discharge spaces 6a and 6b of the front panel 3 are formed as discharge chambers by being sealed with the rear panel 4 laminated onto the rear side of the front plate 3.
  • the discharge chambers are evacuated through evacuation holes 8a and 8b, to thereby become vacuum states, and are then sealed so that gas may be injected into the chambers via the holes.
  • the conductive wiring 5 runs in segments from one edge of the rear panel 4 to a letter-forming area 9a corresponding to discharge space 6a, from the opposite end of letter-forming 9a to another letter-forming area 9b, and from the opposite end of the other letter-forming area 9b to the other edge of rear panel 4. That is to say, the conductive wiring 5 is arranged on the rear panel 4 so as to connect discharge spaces 6a and 6b in series.
  • a luminescence display device In a luminescence display device according to the present invention, if a predetermined voltage is applied conductive wiring 5, an ionized polarization of gas particles filling the discharge chamber occurs and, at the same time, electrons are emitted between the respective ends of the segments of conductive wiring 5 inside the discharge chamber. While the emitted electrons circulate within the discharge chamber, the electrons collide with gas particles to thereby generate light. Therefore, the discharge chamber glows and the display unit 2 of the front panel member 3 is illuminated accordingly. As shown in FIG. , in the aforementioned luminescence display device, for displayed figures having inconsistent widths, as in the discharge chamber 6 for the letter "0," certain portions of the displayed letter become excessively brightened or flicker, which is an unstable discharge phenomenon.
  • discharge induction blocks 10 are provided in the discharge chamber 6 or, as shown in FIG. , a compensating bend 11 is formed on the rear panel.
  • discharge induction blocks 10 are formed rather short and somewhat spaced apart, but are formed rather long and compactly disposed in the wider portions thereof. Also, in FIG.
  • discharge induction blocks 10 are more compactly disposed in the inner flange portion of the display unit than in the outer flange portion.
  • the arrangement and size of the discharge induction blocks 10 depends on the shape of the discharge chamber 6.
  • the compensating bend 11 of the rear panel 4 makes the volume distribution of the discharge chamber 6 uniform overall, which may be verified by the resulting discharge of the discharge chamber.
  • a plurality of lenses 12 are formed on the inner surface of the display unit 2a of the front panel 3, which turbulently reflect the glowing light generated by electron emission and facilitate the collision of the electrons with surrounding gas particles.
  • even more uniform illumination results can be achieved by the simultaneous use of the discharge induction blocks 10, and compensating bend 11 and lens 12 of the rear panel 4.
  • the luminosity of the discharge chamber 6 can be intentionally varied according to the portion being illuminated.
  • FIG.5 shows the luminescence display device according to the second embodiment of the present invention and illustrates a more improved structure for a smooth discharge than the structure according to the above-described embodiment shown in FIG.2.
  • the front panel 3 and rear panel 4 are the same as those shown in the embodiment of FIG.2, and there is further provided a subsidiary rear panel 13 laminated onto the back surface of the rear panel 4.
  • the subsidiary rear panel 13 is provided with a plurality of subsidiary conductive wires 14 arranged in striped form and covering an area equal to or slightly wider than the discharge chamber of the front panel 3. If voltage is simultaneously, selectively or sequentially applied to the plurality of subsidiary conductive wires 14, an electrical field is formed around the wires.
  • FIG.6 illustrates the luminescence display device according to a third embodiment of the present invention.
  • the front panel 15 has multiple partitions 17 and 17a formed so as to partition a discharge space formed by the display unit into a plurality of discharge cells 16.
  • the rear panel 18 is provided with conductive wires 19 arranged in zigzag such that discharge cells 16 are connected in series, as in the aforementioned embodiment.
  • the figures to be illuminated glow uniformly by making the widths of the vertical sections of the discharge cells constant.
  • the cut partitions 17a are provided so as to completely isolate the discharge cells of both sides, while the other partitions 17a have gas channels formed so that the filled gas can be moved between adjacent discharge cells.
  • connection unit 21 can be formed in the flange thereof and both ends of the conductive wires 19 are in turn connected to the connection unit 21. This is considered so that electrical signals are easily applied from an external circuit to the conductive wires 19 using a connection apparatus (not shown) housed in the connection unit 21 between the front panel 15 and the rear panel 18. /18987 PCI7U
  • FIG.7 illustrates the luminescence display device according to a fourth embodiment of the present invention.
  • the front panel 3 is the same as that of the aforementioned embodiment.
  • the rear panel 22 is provided with concave grooves 23 formed on the portion corresponding to the discharge space 6b of the front panel 3, and is further provided with multiple partitions 24 disposed between the concave grooves at regular intervals, which cover an area coinciding with the discharge space so as to protrude into the discharge space 6b.
  • Conductive wires 25 are arranged on the rear panel 22 in a striped pattern so as to pass between the partitions 24, starting from the edge of connection unit 21 and connecting to each of the concave grooves 23.
  • the partitions 24 divide the discharge space 6b into a plurality of discharge cells, as described in the above embodiment.
  • a predetermined gap is provided between the ends of partitions 24 and the inner surface of the display unit 2 of the front panel 3.
  • the gap allows the simultaneous filling of every discharge cell with the gas, through one evacuation hole 8, and prevents the fluorescent substances 25 composed of three colors (red, green and blue) which are coated on the inner surface of the display unit 2 in a striped pattern from being shielded by the respective partitions 24 having a predetermined thickness, thereby obtaining a more delicate blending of color.
  • the concave grooves 23 expose both ends (electrodes) of each conductive wire 25, thereby increasing electron emission therefrom and preventing the rear panel 22 from being damaged by heat generated at the electrodes.
  • the concave grooves 23 can be adopted with respect to the electron-emitting conductive wires or the electrodes created thereby. Meanwhile, according to this embodiment, since an information signal (voltage) is selectively applied to the respective conductive wires 25 via the connection unit 21, a display of flashing multiple colors or a glowing color blend can be realized.
  • FIG.9 explains the discharge principle with respect to the O-shaped discharge chamber having inconsistent widths, in the third and fourth embodiments.
  • a plurality of independent discharge cells 16 isolated by the partitions 24 produce an ionized polarization of gas and emitted electrons flow between the two electrodes 27 placed at either end thereof, thereby resulting in luminescence.
  • the vertical size of the respective discharge cells 16 directly affects the uniform luminescence throughout the discharge chamber. Therefore, also in this embodiment, uniform luminescence is sought by installing discharge induction blocks 28 or internal conductors 29 in the discharge cells whose vertical dimension is not uniform like the upper and lower discharge cells.
  • the internal conductors 29 also prevent erroneous discharging through the electrodes within the adjacent discharge cells or the gas channel 20 shown in
  • FIG.6 or the ends of the partitions 24 and the inner surface of the display unit 2 as shown in FIG.8.
  • FIG.10 shows the luminescence display device according to a fifth embodiment of the present invention.
  • the luminescence display device includes a front panel 3, a rear panel 18, an insulation panel 30 inserted therebetween, a group of anode conductive wires 31 placed between the front panel 1 and the insulation panel 30, and a group of cathode conductive wires 32 placed between the insulation panel 30 and the rear panel 18.
  • the ends of the respective groups of the anode and cathode conductive wires 31 and 32 are electrically connected to the connection wires 31a and 32a and in turn extended to the connection unit 21.
  • connection wires 31a and 32a employ resistive materials whose resistance is adjusted according to the contact position of the respective conductive wires in order to prevent a phenomenon where current flows more intensively on a specific conductive wire.
  • the insulation panel 30 prevents a local discharge phenomenon due to the concentration of a mutual discharge between several conductive wires, while providing insulation between groups of anode and cathode conductive wires.
  • the conductive wires of the anode conductive wire group are partly bent so as to conform closely to the inner surface of the discharge space 6b of the front panel 3 in order to facilitate the induction of electrons emitted from the respective conductive wires of the cathode conductive wire group into the inside of the discharge chamber.
  • the anode conductive wire group 31 can be formed by printing directly on the inner surface of the front panel 3, for example, by using a transparent conductive material.
  • FIGs.11 and 12 are discharge devices according to a sixth embodiment of the present invention, which are modified structures of the aforementioned embodiment shown in FIG.10, so that many more electrons are emitted easily in order to enable a low drive voltage.
  • the rear panel 22 has concave grooves 23 recessed in the portion corresponding to the discharge space 6b of the front panel 3 so that the respective conductive wires of the cathode conductive wire group are wholly exposed.
  • the insulation panel 33 has a space 34 from which the portion corresponding to the discharge space 6b is removed.
  • the anode conductive wire group 35 and cathode conductive wire group 36 have the respective conductive wires separated at a constant distance and arranged in mutually intersecting directions.
  • Such luminescence display devices are operable with alternating current.
  • a higher direct-current voltage is applied to the anode conductive wire group 35 than to the cathode conductive wire group 36, the electrons emitted from the cathode conductive wire group 36 are accelerated toward the anode conductive wire group 35 and collide with the inner surface of the discharge chamber 6 of the front panel 3, thereby creating much greater light intensity.
  • the anode conductive wire group 35 is exposed also to the internal side portions of the discharge chamber 6, the internal side portions tend to glow more brightly than the other portions, which is due to the potential difference between the anode and cathode conductive wire groups 35 and 36 and to the depth and width of the discharge chamber 6.
  • the luminescence display device according to this embodiment is operable at a relatively low drive voltage.
  • the respective conductive wires of the anode and cathode conductive wire groups intersect mutually, a local discharge phenomenon can be prevented and a variety of luminescence patterns can be made possible, by sequentially applying voltages to the respective conductive wires or selectively applying the voltages according to a predetermined information signal.
  • FIG.13 illustrates the luminescence display device according to a seventh embodiment of the present invention and shows a more improved structure which can illuminate a discharge chamber with a delicate blend of color than the structure according to the foregoing embodiment shown in FIG.11.
  • front panel 3, insulation panel 33, and anode and cathode conductive wire groups 35 and 36 are the same as those of the embodiment shown in FIG.12, and latticed partitions 37 attached on the rear panel 18 in the form of the discharge space 6b are further provided.
  • the latticed partitions 37 being inserted to the discharge space 6b of the front panel 3 through the space 34 of the insulation panel 33, divide the discharge space 6b horizontally and vertically at a distance equaling that of the anode and cathode conductive wire groups 35 and 36, thereby forming a plurality of independent discharge cells.
  • the respective discharge cells are discharged independently.
  • Gas channels 38 passing through the plurality of independent discharge cells are formed on the portions where the latticed partitions 37 intersect mutually, for the simultaneous evacuation and gas filling of several adjacent discharge cells with one evacuating hole.
  • the respective fluorescent materials thereof are sequentially coated so that each of the plural discharge cells can be illuminated as red, green or blue, thereby illuminating a discharge chamber with multiple colors or color blends in a variety of luminescence patterns.
  • the foregoing embodiments relate to the panel-type luminescence display devices having a display unit forming figures on the front panel.
  • the present invention can be performed such that individual panel- type luminescence display devices forming separate figures (e.g., letters "0" and "N") are manufactured independently and the respective devices are assembled by connecting electrically and mechanically using a connection apparatus 39 exactly fitting the connection unit 21.
  • the respective luminescence display devices 1 ⁇ and IB may be constituted as in the aforementioned embodiments shown in FIGs.2 through 13.
  • FIG.15 illustrates another type of panel-type luminescence display device according to an eighth embodiment of the present invention.
  • the luminescence display device 40 is composed of two display panel halves 41 and 42 manufactured by the same mold and conductive wires being therebetween.
  • the display panel halves 41 and 42 which are symmetrical with respect to each other, include a display unit 44 protruding from the center in the form of a raised planar body, a plurality of partitions 46 each having a gas channel, for partitioning a discharge space formed internally in the display unit 44 into multiple discharge cells 45, while traversing the space at a constant distance, and recess 48 and evacuating tube halves 49, being located in the center of the upper edge, which are spaced from the display unit 44.
  • the evacuating tube halves 49 can be replaced with a separate evacuating tube such that they be inserted and welded to the recess 48.
  • the conductive wires 43 are arranged in zigzag such that the discharge cells 45 are connected in series to the inner surface of both edges of one display panel half 42.
  • the display panel halves 41 and 42 may take on a wide variety of shapes such as a round, triangular or solid shape.
  • the sealed evacuating tube is not exposed nor damaged by applying a frame (not shown) to the flange thereof.
  • the display unit 44 in this embodiment displays figures by printing them on its surface or by attaching a graphic sheet thereto, and is usable for displaying on both surfaces.
  • the panel-type luminescence display device may have a delicately bent display unit like a relief as well as a solid-shaped display unit whose protrusion from the front panel member is not constant.
  • the flanges are formed in various shapes, and general glass art techniques such as printing, plating, sandblasting or mold carving may be applied to the surface thereof.
  • a panel-type luminescence display device having a display unit of which a predetermined letter or figure protrudes from the front panel to then be illuminated.
  • a letter-type luminescence display device formed as one solid shape (e.g., a letter by itself), will be described.
  • the letter-type luminescence display device can display the desired characters or words in combination with another device.
  • FIG.16 illustrates the letter-type luminescence display device according to ninth through twelfth embodiments of the present invention.
  • the letter "T” is used as an example. Preferred embodiments thereof will be described in detail with reference to FIGs.17 to 26.
  • the luminescence display device is shown in FIGs.17 and 18.
  • Display member 51 which is a base of the displayed solid figure (letter) , has a front part 52 and a side part 53, with the rear part thereof being open.
  • the side part 53 is formed such that the portion in contact with the front part 52 is thick, to then form internal sill 54, and the portion from the internal sill 54 to the rear is thin.
  • the rear edge of the side part 53 is slightly wider than the front edge thereof.
  • a baffle wall 57 for dividing the internal chamber into two independent discharge spaces 55 and 56.
  • the baffle wall 57 can be removed or more than two such baffle walls can be installed, depending on the shape of the display member 51, that is to say, the letter's shape.
  • Gas channel 53 is provided in the baffle wall so that evacuation and gas filling are simultaneously performed with respect to two independent discharge spaces.
  • a plurality of guiding partitions 59 forming a zigzag discharge path from one end to the other is_ formed in the respective discharge spaces 55 and 56 for performing a uniform discharge.
  • the rear cover member 60 which is a flat panel in the shape of the letter is inserted starting from the rear of the display member 51 to the internal sill 54, to then be fixedly attached by a sealing member 61, as shown in FIG.19.
  • the internal discharge spaces 55 and 56 of the display member 51 is sealed by the rear cover member 60, is evacuated to become a vacuum state by means of an evacuating apparatus (not shown) installed in the rear cover member 60 and then filled with a predetermined gas, thereby forming a discharge chamber.
  • At least one pair of discharge electrodes 62 as an anode and cathode, respectively, are installed in the rear cover member 60 as discharge means. In this embodiment, as shown in FIG.17, two pairs of the discharge electrodes 62 (four in total) are provided at both ends of the respective discharge spaces 55 and 56.
  • the discharge electrodes 62 are inserted to be connected with the front portion of a lead pin passing through the rear cover member 60.
  • the discharge electrodes preferably does not make direct contact with the rear cover member 60.
  • a pin holder 64 to be connected with a connector 66 with enclosing the back portion of the lead pin 63 in the rear surface of the rear cover member 60.
  • multiple lenses 68 may be formed in the internal front and side parts in the discharge space of the display member 51.
  • the guiding partition 59a is provided in the rear cover member 60. This is for achieving uniform illumination by evenly arranging the lens 68, as described in the embodiment of FIG. .
  • the pin holder 64 attached to the rear surface of the rear cover member 60 is short enough to be completely shielded within the side part 53.
  • the mounting surface e.g., building wall
  • curved grooves 69 are formed in the back portion of the side part 53, which is used for arranging a cable therein when forming a hole for the conduit (FIG.18) is difficult.
  • FIG.20 shows another example of the structure of the aforementioned letter-type luminescence display device.
  • a side part 53a, a rear cover member 60a and a guiding partition 59c are formed in a body, and a bent front part 52a having a guiding partition 59b is combined forward. This facilitates the manufacture of letter-type luminescence display devices which can be modified.
  • FIG.21 shows the luminescence display device according to a tenth embodiment of the present invention, and shows an improved structure thereof which can illuminate uniformly the internal discharge chamber according the embodiment of the FIG.17. That is to say, there are formed a plurality of partitions 72 for partitioning an internal discharge space of the display member 70 into multiple independent discharge cells 71. Also, gas channels 73 are formed in partitions 72, respectively. In contrast thereto, in the rear cover member 60, four discharge electrodes 62 are provided at the same positions as those described above, and conductive wires 74 connecting the multiple independent discharge cells 71 in series are arranged therein.
  • FIG.22 illustrates the luminescence display device according to an eleventh embodiment of the present invention and shows an improved structure thereof which can illuminate uniformly the internal discharge chamber.
  • the luminescence display device according to this embodiment includes a display member 75 having a hollow discharge space 76, an insulation panel 77 and a rear cover member 60 which are laminated sequentially onto the display member 75 and onto the sill 54, and letter-type anode and cathode members 78 and 79, each having a latticed plurality of wires within a latter-type metal frame.
  • the anode member 78 is supported to the insulation panel 77 by means of a plurality of lugs so as to be placed adjacent the inner surface of the discharge space 76, and is connected with pin holder 64a installed in the rear cover member 60 by means of the other two lugs 80a, to then be connected with external power. Meanwhile, the cathode member 79 closely conforms to the rear cover member 60 to then be directly connected with the other pin holder 64b.
  • the luminescence display device according to this embodiment operates in the same discharging principle as that of the embodiment shown in FIG.10.
  • FIGs.23 and 24 illustrate the luminescence display device according to a twelfth embodiment of the present invention, which is suitable for cases where the letter line width is not constant, as in FIG.23 showing an example of the letter "T.”
  • the same letter-type (here, letter "T") guiding partition 85 as that of the luminescence display device is formed along the center of the discharge chamber 84 of the display member 83, a baffle wall 86 which divides the endless groove around the guiding partition 85 to turn into the confined one is formed in an appropriate place, and anode and cathode terminals 87 and 88 are provided on both sides of the baffle wall 86.
  • a letter-type luminescence display device for displaying a letter "0" may be constituted as in the embodiments shown in FIGs.3 and 4, for a uniform illumination.
  • FIGs.25 and 26 show an installing apparatus of the letter-type luminescence display device according to the foregoing embodiment and the installment state accomplished thereby. That is to say, a holder 90, a suction cap 94 and a connector 95 are adopted.
  • the holder 90 has an anchor 91 which is inserted to a hole in the mounting surface, and is tightly fixed thereon by tightening a bolt element 92 in the anchor 91.
  • One side of the holder 90 is also adhered to the inner surface of the end of the side part 53 of the luminescence display device 50 by means of a buffering member 93.
  • the suction cap 94 which is made of heat-resistant rubber is absorbed and adhered to the rear cover member 60 of the luminescence display device 50, and the connector 95 connects the holder 90 with the suction cap 94. Also, an inter- adjustment between connector 95 and a screen connection unit 96 set the distance between the mounting surface and the rear cover member 60. According to such an installment structure, since no installation device is exposed outv/ardly by means of the side part of the display member of the luminescence display device, the appearance is not spoiled. As described above, since the panel- or letter-type luminescence display device for signs, according to the present invention, is manufactured by constricting using a single step molding, the manufacturing process is simplified and the mass production thereof is made possible.
  • any figure can be illuminated clearly and uniformly, and an advertising effect can be enhanced using various illumination techniques in conjunction with multiple colors. Also, since the front panel is bent and partitions are internally provided, the structure thereof is strengthened so as not to be damaged easily. Further, the luminescence display device of the invention is easy to install.

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Abstract

Dispositif d'affichage luminescent (1) pour enseignes. Le dispositif comprend un panneau avant (3) comportant un élément d'affichage (2) sur lequel des lettres ou des chiffres en saillie sont éclairés, ainsi qu'un espace d'évacuation (6a, 6b) ménagé dans l'élément d'affichage (2). Un panneau arrière (4) fixé au panneau avant (3), qui assure l'étanchéité de l'espace d'évacuation (6a, 6b), est muni d'un dispositif d'évacuation (8a, 8b) permettant de vider l'espace d'évacuation (6a, 6b) et de le remplir de gaz, ainsi que de fils conducteurs (5) permettant d'émettre des électrons dans l'espace d'évacuation. Pour qu'un élément d'affichage de largeur irrégulière s'éclaire uniformément, on introduit des blocs d'induction (10), des lentilles (12) ou un matériau interne conducteur dans l'espace d'évacuation, une autre solution consistant à plier le panneau arrière. Pour obtenir un éclairage multicolore ou un mélange de couleurs, on ménage des cloisons (17, 17a) qui partagent l'espace d'évacuation en plusieurs cellules d'évacuation. On peut aussi alimenter le dispositif avec un courant basse tension en disposant des fils conducteurs de telle façon qu'une cathode et une anode se croisent à angle droit.
PCT/US1995/015990 1994-12-13 1995-12-11 Dispositif d'affichage luminescent pour enseignes WO1996018987A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US35495794A 1994-12-13 1994-12-13
US08/354,957 1994-12-13

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WO1996018987A1 true WO1996018987A1 (fr) 1996-06-20

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ID=23395619

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/015990 WO1996018987A1 (fr) 1994-12-13 1995-12-11 Dispositif d'affichage luminescent pour enseignes

Country Status (1)

Country Link
WO (1) WO1996018987A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2770493A4 (fr) * 2011-10-21 2015-07-08 Kortek Corp Dispositif d'affichage de publicité ayant une feuille tridimensionnelle (3d)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1743569A (en) * 1927-11-16 1930-01-14 William W Purdom Method of making neon electric signs and neon signs
US4584501A (en) * 1984-06-27 1986-04-22 Cocks Franklin H Flat plate luminous display device
US4852285A (en) * 1983-12-30 1989-08-01 Kimoto Sign Co. Ltd. Luminous gas-discharge sign panel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1743569A (en) * 1927-11-16 1930-01-14 William W Purdom Method of making neon electric signs and neon signs
US4852285A (en) * 1983-12-30 1989-08-01 Kimoto Sign Co. Ltd. Luminous gas-discharge sign panel
US4584501A (en) * 1984-06-27 1986-04-22 Cocks Franklin H Flat plate luminous display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2770493A4 (fr) * 2011-10-21 2015-07-08 Kortek Corp Dispositif d'affichage de publicité ayant une feuille tridimensionnelle (3d)
US9318035B2 (en) 2011-10-21 2016-04-19 Kortek Corporation Advertisement display device having 3D sheet

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