EP0062534A1 - Anzeigetafel und Anzeigeelemente dafür - Google Patents

Anzeigetafel und Anzeigeelemente dafür Download PDF

Info

Publication number
EP0062534A1
EP0062534A1 EP82301809A EP82301809A EP0062534A1 EP 0062534 A1 EP0062534 A1 EP 0062534A1 EP 82301809 A EP82301809 A EP 82301809A EP 82301809 A EP82301809 A EP 82301809A EP 0062534 A1 EP0062534 A1 EP 0062534A1
Authority
EP
European Patent Office
Prior art keywords
display
display element
erasing
electromagnets
head
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP82301809A
Other languages
English (en)
French (fr)
Inventor
Masayuki Wakatake
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0062534A1 publication Critical patent/EP0062534A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
    • G09F9/375—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the position of the elements being controlled by the application of a magnetic field
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418—Constructional details
    • G09F13/0472—Traffic signs

Definitions

  • This invention relates to a display panel which has a large number of display elements arranged in the same vertical plane to provide a display of a character, graph, pattern or the like, and display elements for use in the display panel.
  • Display panels of this type are employed for providing a display of a traffic sign, a directional sign, an advertisement, time, dateor like information.
  • Display elements used in the past are usually formed by electrophoto conversion elements, and hence are of large-power consumption. Further, the conventional display elements are readily broken by an external force and short-lived.
  • display panels of the type employing display elements each formed by a block member having a plurality of display surfaces of different colors, but these panels are defective in that the contents of displays cannot easily be changed.
  • this invention is to provide a novel display panel free from the abovesaid defects of the prior art and display elements for use in the display panel.
  • Fig. 1 illustrates an embodiment of a display panel of this invention, which is composed of a display surface structure 1, a display switching unit 2 and a drive unit 3.
  • N horizontal lines of arrangement spaced a predetermined distance L A from adjacent ones of them in a vertical direction be represented by a 1 , a 2 , across a N , respectively
  • the display element D ij has embedded therein magnetic pieces m l , m 2 , m 3 and m 0 at the parralel edges between the display surfaces d 1 and d 4 , between d 1 and d 2 , between d 2 and d 3 and between d 3 and d 4 , respectively.
  • Each of the magnetic pieces m l , m 2 and m 3 extends vertically and its length l 1 has a value close to the height H of the member 4.
  • the magnetic piece m 0 also extends vertically but its length l 2 is smaller than the length l 1 .
  • the magnetic piece m 0 is disposed centrally of the member 4 in the direction of its height, and consequently it lies opposite only the central portions of the magnetic pieces m 1 , m 2 2 and m 3.
  • the display element D ij has a bore 5 extending through the member 4 in the vertical direction. Further, the display element D ij has grooves 6a and 6b substantially triangular in section which are cut in the bottom 4a of the member 4 to extend across the bore 5 so that they intersect at right angles.
  • the groove 6a extends, as viewed on the bottom 4a, in the same direction as the direction of extension of the display surfaces of d 1 and d 3
  • the groove 6b intends in the same direction as the direction of extension of the display surfaces d 2 and d 4 .
  • the display surface structure 1 has a frame 7 for arranging the display elements D 11 to D 1M , D 21 to D 2M , ⁇ D N1 to D NM on the horizontal lines a 1 , a 2 , across a N , respectively.
  • a frame 7 for arranging the display elements D 11 to D 1M , D 21 to D 2M , ⁇ D N1 to D NM on the horizontal lines a 1 , a 2 , Across a N , respectively.
  • fixed shafts B 1 , B 2 , Across B N which extend vertically.
  • Between opposing left-hand and right-hand panels 7c and 7d of the frame 7 are provided laterally extending fixed support plates C l , C 2 ,....C N at regular intervals L A .
  • the support plates C 1 to C N extend through the fixed shafts B 1 to B N , respectively..
  • projections 9 which extend from the side of the fixed shaft B j in the direction of extension of the support plate C i in such a manner that they hold therebetween the fixed shaft B..
  • the projections 9 each have a width which permits selective reception of the grooves 6a and 6b of the display element D ij .
  • the display element D ij is disposed on the support plate C i with the bore 5 receiving the fixed shaft B . through a sleeve 8 fixed thereto.
  • the display element D .. assumes its normal position where it lies on the support plate C i with either one of the groove 6a and 6b received by the projections 9 on the support plate C i . However, the display element D .. thus disposed on the support plate C .
  • the display element D ij is rotatable about the sleeve 8 fixed to the shaft B..
  • the display elements d 1 or d 3 faces forwardly.
  • the groove 6a disengages from the projections 9 and then the groove 6b engages with the projections 9.
  • the display surface d 2 or d 4 of the display element D.. faces to the front.
  • An example of the display switching unit 2 has first erasing heads E 1 ⁇ E N , second erasing heads F 1 ⁇ F N and writing heads G 1 ⁇ G N , as shown in Figs. 1 and 10A.
  • the first erasing head E i has three electromagnets 101, 102 and 103 arranged laterally in this order at intervals 2 ⁇ L B , where L B is referred to previously in respect of Fig. 2.
  • Each of the electromagnets 101, 102 and 103 as shown in Fig. 11, comprises a magnetic core 12 circular in cross section and having wound thereon a coil 11 and magnetic plates 13U and 13L respectively attached to both ends of the magnetic core 12 so that they coextend in a direction substantially perpendicular to the lengthwise direction of the magnetic core 12.
  • the magnetic core 12 and the magnetic plates 13U and 13L make up each of the electromagnets 101, 102 and 103.
  • the magnetic plates 13U and 13L are spaced apart a distance substantially equal to the length l 1 of the magnetic pieces m l , m 2 and m 3 of the aforesaid member 4 of the display element D ij in the vertical direction.
  • the second erasing head F i has one electromagnet 104 as shown in Fig. 12.
  • the electromagnet 104 comprises a magnetic core 22 circular in cross section and having wound thereon a coil 21 and magnetic plates 23U and 23L respectively attached to both ends of the magnetic core 22 so that they coextend in a direction substantially perpendicular to the lengthwise direction of the magnetic core 22.
  • the magnetic core 22 and the magnetic plates 23U and 23L make up the electromagnet 104.
  • the magnetic plates 23U and 23L are spaced apart a distance substantially equal to the length l 2 of the magnetic piece m 0 of the aforesaid block member 4 of the display element D.. in the vertical direction.
  • the writing head G i has three electromagnets 105, 106 and 107 arranged laterally in this order at this intervals of 2 X L B .
  • the electromagnets 105, 106 and 107 are each identical in construction with the abovesaid electromagnets 103 to 105 as shown in Fig. 11; therefore, no detail description will be repeated.
  • a vertical rod 25 is provided behind the display surface structure 1 in a manner to be movable to right and left in parallel therewith.
  • the first and second erasing heads E i and F i and the writing head G i are mounted on the vertical rod 25 at a position opposite the aforementioned horizontal line a. in such a manner that the front end i faces of the magnetic plates 13U and 13L of the electromagnets 101 to 103 and 105 to 107 of the first erasing head E i and the writing head G i and the magnetic plates 23U and 23L of the electromagnet 104 of the second erasing head Fi may lie adjacent the display surfaces d 1 to d 4 of the display element D .. .
  • An example of the drive unit 3 has, as shown in Figs. 1, 10A and 13, a belt, chain or like strap member 28 installed between a pair of pulleys 26 and 27 disposed in the horizontal direction, for instance, on the lower side of the display surface structure 1 and spaced a predetermined distance apart and a similar strap member 31 installed between a pair of pulleys 29 and 30 likewise disposed in the horizontal direction on the upper side of the display surface structure 1 and spaced a predetermined distance apart.
  • the vertical rod 25 of the abovesaid display switching unit 2 is secured at both ends to the strap members 28 and 31.
  • a rotary shaft 33 of a motor 32 is coupled, for instance, to the pulley 27 and a shaft 34 is bridged between the pulleys 26 and 29 so that the strap members 28 and 31 may be driven by the rotation of the motor 32 to right or left in synchronism with each other. Accordingly, the vertical rod 25 is moved to right and left while being held vertical.
  • the drive unit 3 has, as shown in Figs. l0A and 13, a detecting mechanism 41 for detecting the position of the vertical rod 25.
  • An example of the detecting mechanism 41 has, as shown in Figs. 10A and 13, a position detecting plate 42 which is disposed on the lower side of the display elements D N1 , D N2 , .... D NM to extend in the horizontal direction and whose front marginal edge has rectangular recesses R 1 to R M .
  • the recess R j extends leftwards from the position corresponding to the center of the display element D Nj in the horizontal direction to a position spaced a distance equal to 1/2 of the interval L B from the abovesaid position, and a light emitting element 43 and a photo detector 44 which are disposed in opposing relationship to each other with the position detecting plate 42 interposed therebetween.
  • the light emitting element 43 and the photo detector 44 are mounted on the supporting members 16 and 17 respectively planted on the vertical rod 25.
  • the photo detector 44 provides a detected output "1" or "0" in the binary representation depending on whether the recess R j exists or not between the photo detector 44 and the light emitting element 43.
  • the position detecting plate 42 has at least the aforesaid recesses R 1 to R m and similar recesses R S1 ⁇ R S12 .
  • the recesses R S8 , R S7 , ......R S1 are formed in this order at the intervals L B leftwards of the position spaced the distance L B from the leftmost recess R1 and the recess R S9 , R S10 , Vietnamese R S12 are disposed in this order rightwards of the rightmost recess R M at a position spaced therefrom the distance L B .
  • the drive unit 3 has detecting switches 51 and 52 for detecting the leftmost and rightmost positions of the vertical rod 25, respectively.
  • the detecting switch 51 is adapted to provide an output "1" in the binary representation upon engagement with an engaging piece 53 of the vertical rod 25 when the magnetic plates 13U and 13L of the rightmost electromagnet 101 of the first erasing head E i mounted on the vertical rod 25 are moved out of the opposing relation with the display element D il .
  • the detecting switch 52 is similarly adapted to provide an output "1" in the binary representation upon engagement with an engaging piece 53 of the vertical rod 25 when the magnetic plates 13U and 13L of the leftmost electromagnet 107 of the writing head G i are moved out of the opposing relation with the display element D iM .
  • the drive unit 3 has a drive circuit 60 for driving the first and second erasing heads E i and F i and the writing head G i of the display switching unit 2.
  • the drive circuit 60 comprises, for instance, memory circuits H and H', address selector circuits I and I', output circuits J and J', a data processing circuit K and shift registers Ql, Q2 and Q3.
  • the memory circuits H and H' are designed to store information "0" and "0”, “0” and “1”, “1” and “0” or “1” and “1”, for selecting the display surfaces d l , d 2 , d 3 and d 4 of the display elements D 11 to D N1 , D 12 to D N2 , across D 1M to D NM of the display surface structure 1. That is, in each of the memory circuits H and H', N information of the display elements D 11 to D Nl are stored as first parallel information at a first address, N information of the display elements D 12 to D N2 are stored as second parallel information at a second address, whereas
  • N information of the display elements DIM to D NM are.stored as Mth parallel information at an Mth address.
  • the N information making up the jth parallel information stored at the jth address selected by each of the address selector circuits I and I' are read out one by one upon each occurrence of a read control pulse from the data processing circuit K.
  • Each of the address selector circuits I and I' is adapted'to sequentially select the first, second, piping Mth addresses of each of the memory circuits H and H' for sequentially reading out the M parallel information stored in each of the memory circuits H and H'.
  • the output circuits J and J' receive and output the N jth parallel information read out of the memory circuits H and H', respectively.
  • the data processing circuit K has two information input terminals xl and x2 and three information output terminals yl, y2 and y3 and is adapted so tht the information from the output circuits J and J' may be supplied to the information input terminals xl and x2, respectively. Moreover, three shift registers Ql, Q2 and Q3 are provided and information from the information output terminals yl, y2 and y3 of the data processing circuit K are applied to information input terminals of the shift registers Ql, Q2 and Q3, respectively.
  • the data processing circuit K receives the sequential information from the output circuits J and J' to generate pulses upon each reception of the information, which pulses are applied as a read control pulse and a shift pulse to the memory circuits H and H' and the shift registers Ql, Q2 and Q3, respectively.
  • the data processing circuit K is also adapted to provide a reset pulse RP for resetting the shift registers Ql, Q2 and Q3.
  • Each of the shift registers Ql, Q2 and Q3 has first to Nth digits'and is designed so that the N information sequentially applied from the data processing circuit K are stored at the N digits, respectively, and are simultaneously read out thereof.
  • the drive circuit 60 has input terminals Tl and T2 supplied with the detected outputs from the aforesaid detecting switches 51 and 52, respectively, an input terminal T3 supplied with the detected output from the photo detector 44, output terminals O1 and 02 connected to forward and backward revolution input sides of the motor 32, respectively, output terminals OG 11 to OG 1N , OG 21 to OG 2N and OG 31 to OG 3N , an output terminal 03 and a power source switch S.
  • the output terminal OG 1i is connected.to the coil 11 of the electromagnet 105 of the writing head G., the output terminal OG 2i to the coil 11 of the electromagnet 106 and the output terminal OG3i to the coil 11 of the electromagnet 107.
  • the output terminal 03 is connected to the coils 11 of the electromagnets 101 to 103 of the first erasing heads E 1 to E N and to the coils 21 of the electromagnets 104 of the second erasing heads F 1 to F N .
  • N pulses CP are sequentially provided from the data processing circuit K and the shift registers Q l' Q 2 and Q 3 are sequentially shifted upon occurrence of each of the N pulses CP.
  • the data processing circuit K provides at its output terminals yl, y2 and y3 information "0", "0” and "0", respectively, in the case of the information from the memory circuits H and H' being “0" and "0", and information "1", "0” and "0” in the case of the latter information being "0" and "1".
  • the data processing circuit K When the information from the memory circuits H and H' are "1" and “0”, the data processing circuit K provides information "1", “0” and “0” at its output terminals yl, y2 and y3,-respectively, and then if an output "0" in the binary representation is provided twice from the photo detector 44 in the above state, the information "1", “0” and “0” at the output terminals yl, y2 and y3 change to “0", "1” and "0", respectively.
  • the data processing circuit K provides information "1", “0” and "0” and then, if the output "0” is obtained twice from the photo detector 44 in the above state, the information at the output terminals yl, y2 and y3 change to "0", "1” and "0", respectively, and thereafter, if the output "0” is derived twice from the photo detector 44 in this state, the information at the abovesaid three output terminals change to "0", "0” and "1", respectively.
  • the information thus obtained are successively stored in the shift register Ql, Q2 and Q3.
  • the shift registers Ql, Q2 and Q3 are reset and, as described above, the address selector circuits I and I', the memory circuits H and H', the data processing circuit K and the shift registers Ql, Q2 and Q3 are respectively controlled so that information stored at the next address is successively read out of the memory circuits H and H', and, as is the case with the above, the data processing circuit K is actuated and the information therefrom are stored in the shift registers Ql, Q2 and Q3, respectively.
  • the electromagnets 101, 102 and 103 of the erasing head E i are brought to right into opposing relation to the display element D ij one after another and then the electromagnet 104 of the erasing head F i is brought to right into opposing relation to the display element D ij .
  • the photo detector 44 By successive confrontation of the photo detector 44 with the recesses R S1 , R S2' .... R S8 , R 1 , R 2 , across R M R S9' R S8 , R S12 after the vertical rod 25 starts its rightward movement, the photo detector 44 yields the outputs "0" in succession, which are provided to the input terminal T3 of the drive circuit 60.
  • the address selector circuits I and I', the memory circuits H and H', the data processing circuit K and the shift registers Ql, Q2 and Q3 of the drive cricuit 60 are controlled to selectively energize the electromagnets 105, 106 and 107 of a selected one or ones of the writing heads G1 to G N of the display switching unit 2 in accordance with the memory contents of the memory circuits H and H'.
  • the electromagnets 105, 106 and 107 of the writing head G i are brought to the position opposite the display element D ij one after another in synchronism with successive generation of the abovesaid output "0" after the electromagnets 101 to 103 and 104 of the erasing heads E i and F i are moved across the display element D ij .
  • the successive confrontation with the display element D ij starts with the state in which the display surface d of the display element D ij lies on the front side and consequently the magnetic piece m 1 stays near the rear left edge of the display element D ij .
  • the display element D ij performs such operations as described below in accordance with the contents of the memory circuits H and H', whereby a selected one of the display surfaces d 1 to d 4 of the display element D ij is brought to the front side according to the contents of the memory circuits H and H'.
  • the display surfaces d 2 of all the display elements D 11 to D N1 , D 12 to D N2 , Vietnamese D 1M to D NM can be made to face forwardly and a desired one of the display surfaces d l , d 3 and d 4 of a desired one or ones of the display elements can be made to face forwardly. Accordingly, if the display surfaces d 2 , d 1 , d 3 and d 4 of the display element D ij are previously colored, for example, in white, red, green and blue, respectively, a character, symbol, graph or pattern can be displayed in colors as desired. Such a display can be produced with a simple construction as a whole.
  • the display element D.. has such a simple construction as shown in Figs. 4, 5, 6 and 7, the distance between adjacent ones of the display elements can be made small; therefore, the overall apparatus can be simplified in construction and reduced in size correspondingly.
  • the display panel does not consume much power and, in addition, as the display element is not readily broken by an external force, the display panel can be used without trouble for a long time.
  • the display element according to the foregoing embodiment of this invention can be applied to construct a display panel which includes a number of such display elements arranged in the same vertical plane and which is capable of providing a character, graph, pattern or like display without much power consumption and with a long life.
  • the present invention exhibits the advantages that the content of a display of a character, symbol, graph, pattern or the like can be changed by a single movement of the display switching unit 2 in one direction and that such a change does not take much time.
  • the writing heads G 1 to G N of the display switching unit 2 be constructed so that those magnetic plates 13U or 13L of the electromagnets 105, 106 and 107 of the writing heads G i-1 and G i+1 lying on the side of the writing head G i may be of the same polarity.
  • the advantage by this construction will be briefly described in connection with the electromagnets of the writing heads G i-1 , G i and G i+1 .
  • the electromagnet 105 of the writing head G i is not energized but the electromagnets 105 of the writing heads Gi-1 and G i+1 are energized, the electromagnet 105 of the writing head G i is not exposed to a magnetic field by the electromagnet 105 of the writing head G i-1 and/or G i+1 . This eliminates the possibility of erroneous activation of the display elements D il to DiN.
  • a pair of rotary shafts 74L and 74R are rotatably provided at a predetermined distance on a substrate 72 to extend vertically.
  • On the rotary shafts 74L and 74R are mounted pulleys 73L and 73R, respectively.
  • a carrier member 71 such as an endless belt, is placed on the pulleys 73L and 73R.
  • On the outer surface of the carrier member 71 are arranged the display elements D 11 to D 1M , D21 to D 2M , dozens D N1 to D NM in the same manner as described previously with regard to Figs. 1 to 3. In thise case, as will be more apparent from Figs.
  • the display element D ij is mounted on the carrier member 71 through a support plate C ij corresponding to that C i described previously with respect to Fig. 2.
  • the support plate C ij has the projections 9 selectively engageable with the grooves 6a and 6b of the display element D ij .
  • the rotary shaft 74L is adapted to be rotatable by a drive mechanism 75 as desired and, consequently, the carrier member 71 is adapted to be endlessly movable laterally as required. Accordingly, the display surface structure 1 can be endlessly moved laterally.
  • this embodiment is identical in construction with the embodiment of Figs. 1 to 15 except that the first erasing head E i , the second erasing head F i and the writing head G i , which constitute the display switching unit 2, are fixedly arranged in the order described previously in respect of Fig. 10A, as shown in Fig. 17.
  • the drive unit 3 is designed so that, upon moving the display surface structure 1 by the driving mechanism 75 in a lateral direction, the electromagnets 101 to 103 of the first erasing heads E 1 to E N and the electromagnets 105 to 107 of the second erasing heads F l to F N and the writing heads G l to G N are energized in synchronism with the movement of the display surface structure 1, though neither illustrated nor described in detail.
  • the display surfaces d 1 to d 4 of the display elements D 11 to D 1M , D21 to D 2M , 7-8 D N1 to D NM are selected as desired and face forwardly.
  • the display surfaces d 2 of all the display elements D 11 to D N1 , D12 to D N2 , Vietnamese D 1M to D NM can be made to face forwardly and a desired one of the display surfaces d l , d 3 and d 4 of a desired one or ones of the display elements can be made to face forwardly. Accordingly, a character, symbol, graph or pattern can be displayed in colors as desired.
  • Such a display can be produced with a simple construction as a whole.
  • the display element D ij has such a simple construction as described previously, the distance between adjacent ones of the display elements can be made small; therefore, the overall apparatus can be simplified in construction and reduced in size correspondingly.
  • the display panel does not consume much power and, in addition, as the display element is not readily broken by an external force, the display panel can be used without trouble for a long time.
  • the display element D ij need not be limited specifically to the four-sided right prismatic block member 4 with the four display surfaces d 1 to d 4 but may be a multi-sided prismatic block member with plural (P) display surfaces of different colors.
  • the magnetic pieces responsive to the first erasing head and the writing head are disposed in the block member near its (P-l) edges and a magnetic piece responsive to the second erasing head is disposed near the remaining one edge and (P-l) electromagnets are disposed in the first erasing head and the writing head correspondingly.
  • the length l 2 of the magnetic piece m 0 of the display element D ij need not always be selected smaller than the lengths l 1 of the other magnetic pieces m 1 to m 3 .
  • the structures of the heads E i , F i and G i and the magnetic pieces m 0 and m 1 to m 3 of the display element D ij can be modified from those employed in the foregoing embodiment if the first erasing head E. and the writing head G i have such construction that acts on only the magnetic pieces m 1 to m 3 of the display element D ij . Also it is possible to substitute the first and second erasing heads with permanent magnetic heads.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
EP82301809A 1981-04-07 1982-04-06 Anzeigetafel und Anzeigeelemente dafür Withdrawn EP0062534A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP52586/81 1981-04-07
JP56052586A JPS57167075A (en) 1981-04-07 1981-04-07 Display unit

Publications (1)

Publication Number Publication Date
EP0062534A1 true EP0062534A1 (de) 1982-10-13

Family

ID=12918895

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82301809A Withdrawn EP0062534A1 (de) 1981-04-07 1982-04-06 Anzeigetafel und Anzeigeelemente dafür

Country Status (4)

Country Link
EP (1) EP0062534A1 (de)
JP (1) JPS57167075A (de)
AU (1) AU558470B2 (de)
CA (1) CA1191343A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083844A1 (de) * 1981-12-07 1983-07-20 Masayuki Wakatake Anzeigeelement und Anzeigetafel dafür
WO1984000839A1 (en) * 1982-08-06 1984-03-01 Harwal Ind Pty Limited Coloured display
FR2610438A1 (fr) * 1987-01-30 1988-08-05 Fontalirant Eric Element d'affichage forme d'un cube avec une denture d'affichage et une denture d'effacement, panneau d'affichage comprenant de tels elements d'affichage et systeme d'affichage
DE4125608A1 (de) * 1991-07-30 1993-02-04 Krone Ag Anzeigevorrichtung
WO1997002555A1 (de) * 1995-07-03 1997-01-23 Gassmann Gerhard G Matrix-wechselanzeige

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60114895A (ja) * 1983-11-25 1985-06-21 富士通機電株式会社 流動サイン表示装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3267595A (en) * 1963-06-05 1966-08-23 Levy Display unit
US3335512A (en) * 1965-08-30 1967-08-15 Robert P Newman Illuminated sign
FR2378327A1 (fr) * 1977-01-24 1978-08-18 Nihon Advanced Prod Kk Element de panneau et panneau d'affichage
FR2426950A1 (fr) * 1978-05-23 1979-12-21 Wakatake Yoshimasa Element d'affichage et tableau utilisant de tels elements
GB2081954A (en) * 1980-07-01 1982-02-24 Wakatake Giken Yk Display panel and display elements therefor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3267595A (en) * 1963-06-05 1966-08-23 Levy Display unit
US3335512A (en) * 1965-08-30 1967-08-15 Robert P Newman Illuminated sign
FR2378327A1 (fr) * 1977-01-24 1978-08-18 Nihon Advanced Prod Kk Element de panneau et panneau d'affichage
FR2426950A1 (fr) * 1978-05-23 1979-12-21 Wakatake Yoshimasa Element d'affichage et tableau utilisant de tels elements
GB2081954A (en) * 1980-07-01 1982-02-24 Wakatake Giken Yk Display panel and display elements therefor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083844A1 (de) * 1981-12-07 1983-07-20 Masayuki Wakatake Anzeigeelement und Anzeigetafel dafür
WO1984000839A1 (en) * 1982-08-06 1984-03-01 Harwal Ind Pty Limited Coloured display
FR2610438A1 (fr) * 1987-01-30 1988-08-05 Fontalirant Eric Element d'affichage forme d'un cube avec une denture d'affichage et une denture d'effacement, panneau d'affichage comprenant de tels elements d'affichage et systeme d'affichage
DE4125608A1 (de) * 1991-07-30 1993-02-04 Krone Ag Anzeigevorrichtung
WO1997002555A1 (de) * 1995-07-03 1997-01-23 Gassmann Gerhard G Matrix-wechselanzeige

Also Published As

Publication number Publication date
JPS57167075A (en) 1982-10-14
CA1191343A (en) 1985-08-06
AU558470B2 (en) 1987-01-29
AU8239582A (en) 1982-10-14
JPS6222155B2 (de) 1987-05-15

Similar Documents

Publication Publication Date Title
US4264906A (en) Display element and display panel employing such display elements
US4417241A (en) Magnetically operated matrix display panel and elements therefor
EP0520418B1 (de) Vielfarben-Anzeigevorrichtung
US3909823A (en) An optical fiber variable display system utilizing a single light source
US3493957A (en) Variable message displays
US4318098A (en) Signs
US4177458A (en) Display panel and display elements therefor
EP0062534A1 (de) Anzeigetafel und Anzeigeelemente dafür
US4769638A (en) Color graphics information display
GB1602671A (en) Display unit
US4069480A (en) Blanking circuit for electromagnetic display
CA1097915A (en) Apparatus for displaying visual information by means of magnets
EP0083844B1 (de) Anzeigeelement und Anzeigetafel dafür
EP0635815B1 (de) Anzeigeelement mit einer ungeraden Anzahl Anzeigeflächen und Anzeigeeinheit mit solchen Anzeigeelementen
AU760452B2 (en) Display device and array
WO1984000839A1 (en) Coloured display
US4533912A (en) Equipment for displaying alphanumerical and/or pictorial information, preferably for use on a vehicle
KR840002880Y1 (ko) 2개 표시면의 표시 소자를 구비한 표시 장치
JPS5848913B2 (ja) 表示装置
US5208589A (en) Magnetically controlled indicia display device
JPS589427B2 (ja) 表示素子
JPS5848912B2 (ja) 表示パネル
US3103007A (en) Luminous display device
KR860001184Y1 (ko) 4면 표시소자를 구비한 표시장치
US3561008A (en) Remote controlled illuminated displays

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB NL

17P Request for examination filed

Effective date: 19830309

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19850327