KR840002880Y1 - Display panel and display elements therefor - Google Patents

Abstract

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Description

Display device provided with display elements on two display surfaces

FIG. 1 is a view showing a state in which the first and second views are interconnected, and FIGS. 1a and 1b are perspective views showing a first embodiment of the display device of the present invention.

2 is a cross-sectional view taken along the line II-II of FIG. 1a.

3A and 3B are front and right side views each showing an example of the display device of the present invention.

4A and 4B are front and right side views each showing another example of the display element.

Fig. 5A is a front view showing an example of a display control head applicable to the first embodiment of the display device.

FIG. 5B is a cross-sectional view taken along line B-B of FIG. 5A.

6a and 6b show the operation of the first embodiment of the present invention;

The present invention relates to a display device comprising a plurality of display elements arranged in the same vertical plane to display characters, graphs, patterns, and the like, and more particularly, to a display device having a plurality of display elements having two display surfaces.

Conventional types of display devices have been used to display information such as traffic signals, direction signals, advertisements, time, date, etc. The display elements used in the past have always been largely composed of electrophotographic conversion elements, which resulted in high power consumption. In addition, the conventional display element is easily broken by external force and has a short lifespan. Accordingly, the present invention is to provide a new display device which eliminates the above-mentioned drawbacks of the prior art. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 show an embodiment of the display device of the present invention, which is composed of the structure 1 of the display surface, the display switching device 2, the drive device 3, and the like. In the embodiment of the display surface structure 1, the N horizontal lines arranged apart by a predetermined distance LA from adjacent elements of the display element in the horizontal direction are (a ₁ ), (a ₂ ). (a _N ) are displayed, and each of the M display elements D _i1 , D _i2 . (D _iM ) are arranged on the vertical line a _i (= 1.2... N), each separated by a predetermined distance L _B in the vertical direction.

In this case, the display elements Dij (j = 1, 2... M) have a structure as shown in FIGS. 3A and 3B, wherein the plate-shaped member 4 formed of synthetic resin material is made of red and white color. Consists of a pair of opposing display surfaces (d ₁ and d ₂ ) of the same different color, the magnet piece (M) is inserted into any one of the upper end 5 and the lower end 6 of the plate-like member 4 In the case of the insertion in the upper end, the plate-shaped member 4 extends in the axial direction, and the plate-shaped member 4 is provided with a shaft insertion hole 7, and the plate-shaped member 4 has a shaft insertion hole 7. In the state of being laid out, when the plate-like member 4 is supported by the shaft 10, the opposing display surfaces b ₁ and d ₂ lie in a vertical plane, respectively. In this case, in order for the upper and lower halves of the plate-like member 4 to have the same mass, the through-hole 8 having a semicircular cross section is formed in the plate-like member 4 and the inside of FIGS. 3A and 3B. As shown in the figure, the magnet pieces M are arranged to move the same mass as the mass of the magnet pieces M. As shown in FIG. The nonmagnetic piece 9, which is the same mass as the mass of the magnet piece M, has an axis at a position symmetrical with the magnet piece M with respect to the center of the plate member 4, as shown in FIGS. 4A and 4B. Extending in the direction is inserted deep into the plate-like member (4). The shaft insertion hole 7 is provided in the center of the plate member 4 extended in parallel to the display surfaces d ₁ and d ₂ . Therefore, when the shaft 10 is loosely inserted into the shaft insertion hole 7 of the plate member 4, when the display surfaces d ₁ and d ₂ are placed in the vertical plane, respectively, the plate member 4 is weighted. Due to this, the plate member 4 is supported by the shaft 10 coupled with the inner walls of the upper and lower portions of the shaft insertion hole 7. The above-mentioned display device _{(D i1), (Di 2} ) ... DiM are loosely inserted into the shaft insertion holes 7, respectively, and the horizontal axes are arranged side by side in parallel at predetermined intervals L _B in the vertical direction. Therefore, display elements D ₁₁ to D _N1 , (D ₁₂ to D _N2 ). The display surface d ₁ or d _{2 of} (D _1M to D _NM ) lies in the front direction in the same vertical plane.

The exemplary display switching device 2 has a display control head Ei arranged to be movable along the vertical line ai. In this case, as shown in Figs. 5A and 5B, the display control head Ei is wound around the coil core 21 and the magnet core 22 and the magnet core 22 which are circular cross sections. Individually fixed trapezoidal magnet plates 23L and 23R, nonmagnetic guide pieces 25L and 25R attached separately to the upper and lower edges of the front ends of the magnetic plates 23L and 23R extending upward and downward, and (26L) And 26R) and leaf springs 27 and 28 fixed to the guide pieces 25L and 25R and 26L and 26R at one end and extending from the other end toward the magnet core 22. It consists of leaf springs 27 and 28 extending from the other end toward the magnet core 22 and the magnet plate 22. The magnet core 22 and the magnetic plates 23L and 23R form an electromagnet 29. The distance between the magnetic plates 23L and 23R is shorter than the length of the display element Dij in the lateral direction. The magnet plates 23L and 23R of the display control head Ei are formed with a trapezoidal cutout 30 so that when the display element Dij is rotated as will be described later, it does not collide with the magnet plates 23L and 23R. The free ends of the leaf springs 27 and 28 are curved at right angles to form the curved portions 31 and 32. The distance between the curved portions 31 and 32 is about 1/2 of the predetermined vertical distance L _B between the display elements. The display control head Ei is the front end face of the magnetic plates 23L and 23R and the guide pieces 25L, 25R, 26L and 26R are the display face d ₁ of the display element Dij or (d). ₂ ) is arranged on the horizontal bar 35 on the opposite side of the vertical line (ai) in a manner adjacent to. The horizontal bar 35 lies behind the horizontal axis Bj and can move in the vertical direction.

One example of the drive device 3 is a belt, chain or strap member which extends from the display surface structure 1 between a pair of pulleys 36 and 37 which are arranged in the vertical direction at a predetermined distance from each other on the left side. A similar strap member 41 extends between the 38 and the pair of pulleys 39 and 40 that are equally arranged in the vertical direction at a right distance away from the display surface structure 1.

The horizontal bar 35 of the display switching device 2 described above is fixed to both ends of the strap members 38 and 41. The rotating shaft 43 of the motor 42 is fixed to the pulley 37, and the shaft 44 is installed between the pulleys 36 and 39 to connect the strap members 38 and 39 to the rotation of the motor 42. This allows each other to move up and down at the same time. Thus, the horizontal bar 35 is moved up and down while being kept horizontal. The drive device 3 is driven with a detector 51 for detecting the position of the horizontal bar 35. The detector 51 of the exemplary embodiment includes a position detecting plate 52, light emitting elements 53 and 54, and photodetectors 55 and 56. The position detecting plate is a display device D ₁₁ extending in the vertical direction, ( D ₁₂ )... By being arranged on the left side of (D _1M) its front edge has an edge extending upwardly from a position away by a distance 1/2 of the distance (L _B) from the one position corresponds to the center of the display elements (D _ij) in the vertical direction, respectively The formed rectangular cutouts R ₁ to R _M are formed, and the light emitting elements 53 and 54 and the photodetectors 55 and 56 are arranged such that they are arranged opposite to both sides of the position detecting plate 52. The curved portions 31 and 32 of the leaf springs 27 and 28 of the display control head E _i are arranged to face each other.

The photo detectors 55 and 56 have an output " 1 " detected by binary notation depending on whether the cutout portion Rj is between each of the photodetectors 55 and 56 and the respective light emitting elements 53 and 54. Supply "0" respectively. In practice, the position detecting plate 52 has a minimum of cutouts R ₁ to R _M , and similar cutouts R _s1 and R _{s2 are} formed at the top and bottom cutouts 1, It is formed separately from (R _M ) by a distance (L _B ). Moreover, the drive device 3 has detection switches 61 and 62 for separately detecting positions of the upper end and the lower end of the horizontal bar 35.

When the display control head E _i mounted on the horizontal bar 35 is moved to the outside of the opposite side with respect to the display element D _i1 , the magnetic strip pieces 23L and 23R move toward the outside of the horizontal bar 35. In combination with the coupling pin 63 supplies the output "1" in binary notation. When the magnet pieces 23L and 23R of the display control head E _i are moved to the outside of the opposite side with respect to the display element _DiM , the detection switch 62 engages with the coupling pin 63 of the horizontal rod 35. Supply the output "1" of the true display.

In addition, the drive device 3 is made up of a drive circuit 70 to operate the electromagnet 29 of the display switch (the display control head E _i of the device 2). It consists of a circuit H, an address selection opportunity F, a low output circuit J, a data processing circuit G and a shift register K. The memory circuit H is displayed on the display surface structure 1. To store the information "1" or "0" in order to select the display surface d ₁ or d2 of the elements D ₁₁ to D _N1 , D ₁₂ to D _N2 ... D _1M to D _NM . That is, the N information of the display elements D ₁₁ to D _N1 is stored as first parallel information at the first address, and the N information of the display elements D ₁₂ to D _N2 is second parallel at the second address. Is stored as information .. The N information of the display elements D _1M to D _NM is stored as Mth parallel information.The N information indicating the jth parallel information stored at the jth address by the address selection circuit F is The data are read out sequentially from the data processing path G each time a read control pulse is generated.The address selector circuit F reads the first, second, and parallel lines of the M parallel information stored in the memory circuit H in order. The second to Mth addresses are selected in order, and the output circuit J receives the Nj-th parallel information read signal of the memory circuit H and issues its output. Receive continuous information from the output circuit (J) to generate a pulse every time it is received.These pulses can be read individually and read-controlled and shifted to the memory circuit (H) and the shift register (K). The data processing circuit G is also suitable for providing a reset pulse RP for resetting the shift register K. The shift register K is composed of first to Nth coefficients. Data processing society The N information sequentially applied from (G) is stored separately in the N coefficient and read out simultaneously from the N coefficient, and the drive circuit 70 further inputs for separately supplying the outputs detected from the above-described detection switches 61 and 62. Input terminals I ₃ and I ₄ for separately supplying the outputs detected from the terminals I ₁ and I ₂ and the photodetectors 55 and 56, and the forward and backward direction turning input sides of the motor 42. Output terminals 01 to 02 individually connected to the display terminal, and an output terminal OE _i connected to the coil 21 of the electromagnet 29 of the display control head E _i and the power switch S. When the horizontal bar 35 of the display switch device 20 is set to the lowest position to turn on the horizontal switch 62, when the power switch S operates in the ON state for a very short time, the output signal is output terminal. Derived from (01). If the output "1" detected by the binary display method is supplied from the photodetector 55 to the input terminal I ₃ while the output signal is obtained from the output terminal 01, the N information "1" in the binary display method is supplied. And N pulses CP are provided continuously from the data processing circuit G, and the position shift register K is shifted in sequence each time the N pulses CP are generated. As a result, N information " 1 " It is stored in N digits of the register K. At this time, when the detection output from the photodetector 55 becomes " 0 ", the N information stored in the shift register K is individually derived from the output terminals OE ₁ and OE _N. At this time, When the output from the detector 55 is changed to "1", there is no output at the output terminals OE ₁ to OE _N. At the same time, the seat shift register K is reset by the reset pulse RP in order to store the N information " 1 " from the data processing circuit G again. When the output from the photodetector 55 then becomes " 0 " again, the output is generated at the output terminals OE ₁ to OE _N as described above, and then the above operation is repeated. When the detection output is applied from the detection switch 61 to the input terminal I ₁ , the output signal is supplied to the output terminal 02 instead of the output terminal 01. The output "0" of the binary display is then supplied from the photodetector 56 to the input terminal I ₄ in the state supplied to the output terminal 02, and the address selection circuit F, the memory circuit H, and the data control circuit. The furnace G and the seat shift register K are controlled, whereby the N information incorporated in the memory circuit H is read sequentially and applied to the seat shift register K via the output circuit J. The shift register K is controlled by the N shift pulse CP so that the N information stored in the N digit of the shift register K is derived separately from the output terminals OE ₁ to OE _N. .

At this time, when the output from the photodetector 56 is changed to "0", the information generated from the output terminals OE ₁ to OE _N is no longer generated. At the same time, the shift register K is set by the reset thames RP. At this time, the address selector circuit F, the memory circuit H and the data processing circuit G are controlled in the same manner as described above so that the N information stored in the memory circuit H in the second address is replaced by the shift register K. Are read and stored in order. Then, when the output from the photodetector 56 becomes "1" again, the information stored in the seat shift register K is led to the output terminals OE ₁ through OE _{N in the} same manner as described above. The above operation is repeated. When the output "1" detected by the binary display method is supplied from the detection switch 62 to the input terminal I ₂ , there is no output at the output terminal 02.

The above description is the structure of one embodiment of the present invention. In this arrangement, the power switch S of the drive circuit 70 of the drive device 3 is in the lowest position to keep the detection switch 62 in the ON position of the horizontal rod 35 of the display switch device 2. If controlled in a state for a very short period of time to be assumed, the motor 42 generates an output at the output terminal 01 to drive in the forward direction. Therefore, the strap members 38 and 41 are driven clockwise so that the horizontal bar 35 operates in the upward direction (FIG. 2). Therefore, when the horizontal bar 35 moves upward, since the photodetector 55 moves opposite to the cutout portion R _S2 of the position detecting tube 52, the output “1” is generated in the photodetector 55. As a result, the information " 1 " from the data processing circuit G is stored as all the coefficients of the position shift register K of the drive circuit 70. Then, when the horizontal rod 35 is moved to move the photodetector 55 to the opposite side with respect to the portion between the cutouts R _S2 and (RM), the output from the photodetector 55 is displayed in the display control head E ₁ to ₁ . In order to operate the electromagnet 29 of E _N ), it becomes "0" in order to derive an output from the output terminals OE ₁ to OE _N as described above. In this state, since the electromagnets 29 of the display control heads E ₁ to E _N face the lower ends of the display elements D _1M to D _NM , the display surface d ₂ is placed on the front side of the plate member 4. Assuming that the display element D _iM is placed together with the magnet piece M supported at a low position while being supported at, the magnet piece M of the display device _{Di iM} is as shown in FIG. 6A. end of the display control head (E _i) is derived by an electromagnet 29, the magnet piece display element (D _iM) to the side of the (M) of the leaf spring 27 and 28 to be combined with the curved portion 32 It is inserted between the curved portions 31 and 32. Then, when the horizontal bar 35 is moved to operate the photodetector 55 to the opposite side of the cutout RM, since the output "1" is supplied from the photodetector 55, the output terminal OE as described above. _There is no output at ₁ to OE _N , and the electromagnet 29 of the display control heads E ₁ to E _N is not excited, and the N information "1" from the data processing circuit G is the driving circuit 70. Is newly stored in the position shift register K. At the same time, the display device D _iM is rotated by 90 ° or more to move the display surface d ₁ to the front side after the state as shown in FIG. 6B rotated by 180 °. Thereafter, as the horizontal bar 35 moves, the horizontal bar 35 is rotated by 90 ° or more to move the display element d ₁ . Thereafter as the horizontal rods 35 are moved, the display element (D _i) (M-1), ... (D _i2 ) and (D _i1 ) are continuously rotated by 180 ° only when the magnet piece M lies on the bottom side. As a result, the horizontal bars 35 move upward, and thus display elements D ₁₁ to D _N1 , D ₁₂ to D _N2,. The display surface d ₁ of (D _1M to D _NM ) is all moved to the front surface. When the horizontal bar 35 reaches the uppermost position to turn on the detection switch 61 in order to induce the output "1" detected by the binary display method, the drive circuit instead of the output generated at the output terminal 01 until then. An output is generated at the output terminal of 70. Thus, in order to rotate the strap members 38 and 41 in the counterclockwise direction of FIG. 2, the motor 42 is driven in the opposite direction to cause the horizontal rod 35 to move downward. At this time, the photodetector 56 operates in reverse with respect to the position detecting plate 52 between the cutouts R _S1 and R ₁ , and the output “0” is the inspiration circuit H and the address selector circuit F. , From the photodetector 56 to control the position shift register K of the data processing circuit G and the driving circuit 70. Therefore, the first parallel information for the display elements D ₁₁ to D _N1 stored in the memory circuit H is read out and stored in the shift register K. At this time, the horizontal bar 35 is cut off (R _1). Moving further down relative to the position where the photodetector 56 lying opposite to) outputs "1" from the photodetector 56, thereby outputting the N information stored in the shift register K. The output generated from the output terminals OE ₁ to OE _N corresponding to is " 1 ". Finally, one electromagnet 29 of the display switches E ₁ to E _N is excited and one magnet piece M selected from among the display elements D ₁₁ to D _1M placed opposite the electromagnet 29 of the selected display control head. Is guided by the electromagnet 29 so as to rotate in the clockwise direction of FIG. 2, and the leaf springs 27 and 28 of the display control head selected to engage with the curved portion 31 on the end side of the magnet piece M. Are individually inserted into the bends 31 and 32 of. Then, if the photodetector 56 operates inversely with respect to the part of the position detecting plate 52 between the cutouts R ₁ and R ₂ , the drive since the output from the photo detector 56 becomes "0" is driven. The seat shift register K of the circuit 70 is reset, and at the same time, the second parallel information for the display elements D ₁₂ to D _N2 stored in the memory circuit H is transferred by the address selector circuit F. FIG. It is read and stored in the shift register K again. At the same time, selected ones of the display elements D ₁₁ to D _N1 are rotated by 90 ° or more to move their display surface d _{2 to the} front side thereof. As a result, only the selected display element is rotated by 180 degrees.

When the next photodetector 56 is moved inversely with respect to the cutout R ₂ , the selected _one of the output terminals OE ₁ to OE _N of the drive circuit 70 corresponding to the information stored in the digit shift register of " 1 " The output is generated from either. As in the above case, only one selected from the display elements D ₁₂ to D _N2 is rotated in the clockwise direction of FIG. Thereafter, the display elements D ₁₃ to DN ₃ , (D ₁₄ to D _N4 ) _,. Only one selected display element of (D _1M to D _NM ) is rotated continuously. Thereafter, when the horizontal bar 35 is moved to the lowest position by operating the detection switch 62 in the ON state to induce the detection output "1" from the horizontal bar, no further output is generated from the output terminal 02. The rotation of the motor is also stopped.

According to the embodiment of the present invention described above, the display elements (D ₁₁ to D _N1 ), (D ₁₂ to D _N2 ) _,. All display surfaces d ₁ of (D _1M to D _NM ) can be oriented in the front direction, and when the information of a predetermined pattern is stored in the memory circuit of the driving circuit 70, the predetermined display element is displayed on either display. The surface d ₂ may be oriented in the front direction so that the display elements D ₁₁ to D _N1 , D ₁₂ to D _N2,. The display surfaces d ₁ and d ₂ of (D _1M to D _NM ) can be displayed, and such a display device can be made of a simple structure, and a pair of opposed displays in which the display element D _ij is a simple structure if the display surface when the (d ₁ and d ₂₎ magnet pieces (M) to a side edge of the plate-shaped member 4 made of is deeply inserted into and supported by a plate-like member (4) and the shaft (10), (d ₁ and d _Since the shaft insertion hole 7 is laid in the plate member 4 so as to put ₂ ) in the vertical plane, the distance between adjacent elements of the display element can be narrowed. Moreover, since there is no need for a specific positioning device for supporting the display surface of the display element in the vertical plane, the overall device can be simplified and reduced to a small size accordingly.

Claims (1)

A display device comprising a structure (1) of a display surface, a display switching device (2), and a drive device (3) capable of rotating a display element (D _ij ) arranged by an axis (10). The structure 1 is formed of a plurality of display elements _Dij with two display surfaces d ₁ and d ₂ , wherein the display elements _Dij are one of the upper and lower ends 5 and 6. A shaft insertion hole 7 is formed so that the shaft 10 is loosely inserted in the horizontal direction while inserting the magnet piece M into the horizontal direction, and the display switching device 2 includes a control head Ei, The magnet core 22 on which the coil 21 is wound, the trapezoidal magnet plates 23L and 23R fixed at both ends thereof, and the nonmagnetic guide pieces 25L, 25R, 26L attached to the upper and lower sides of the front end portion, respectively. And leaf springs 27 and 28 fixed to 26R and extending from the other end toward the magnet core 22, wherein the drive device 3 is provided with a memory circuit (1). A display device having a two-side display element, comprising: H), an address selector circuit (F), an output circuit (J), a data processing circuit (G), and a seat shift register (K).