JP2009058804A - Double-sided display type long electronic information display panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a double-sided display type long electronic information display panel capable of displaying two or more pieces of product information displayed back to back with a single front and rear double-sided display part panel of an information display apparatus, wherein the display are layout changeable freely, corresponding to the display position of a product, and display of the entire displayed products can be displayed even if a plurality of products are displayed back to back in a lateral row in the single information display apparatus for the total information of the displayed products by disposing a single information display apparatus. <P>SOLUTION: The dot matrix type display system information display panel comprises an electrically-driven display medium sealed in a space between two substrates with an electrode. The two display part panels independent with each other are disposed back to back. The display area of the display part panels is provided rectangularly with a vertical and lateral aspect ratio of 1:2 or more. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an information display panel of a long type (vertical / horizontal aspect ratio of 1: 2 or more) that can be displayed on both front and back surfaces that can be attached to a ceiling or the like above a displayed product in a space for displaying the product. Display information can be rewritten by enclosing a drivable display medium between two substrates with line-shaped electrodes and applying a voltage based on an electric signal between counter electrodes formed by opposing line-shaped electrodes to move the display medium. The present invention relates to a double-sided display type long electronic information display panel configured as an information display panel having two dot matrix display type display unit panels capable of performing the above.

  Conventionally, an electronic shelf label in which display information can be rewritten by moving an electrically drivable display medium is known. The size of the display unit is vertical (about 3 cm to about 10 cm) × horizontal (5 cm). The aspect ratio of the rectangle was about 1: 1.4 (corresponding to the standard A and B plates) (for example, see Patent Document 1).

Also, there were cases where two electronic shelf labels were combined back-to-back and installed on the ceiling above the displayed product, etc., but this corresponds to one product displayed in the space directly below the shelf label. Either the information display is displayed on the front and back surfaces, or the information display corresponding to the products displayed back to back in the space directly below the shelf label is displayed on the front and back surfaces.
JP 2005-301030 A

  Among the above-described conventional examples, when a shelf label configured in a double-sided display type is arranged at a position corresponding to a product displayed back to back, if the vertical length is long, depending on the target product depending on the interval between the display space and the ceiling There was a problem that the information displayed on the shelf label was hidden and the displayed information could not be seen. In addition, when placing as a shelf label corresponding to the products displayed in a horizontal row, since each displayed product is installed as a shelf label, the position of the shelf label must be moved according to the display status of the product. There was a problem that had to be done.

  In addition, there were cases where two electronic shelf labels were combined back-to-back and installed on the ceiling above the displayed product, etc., but information corresponding to one product displayed directly below the shelf label was installed. The display can only be displayed on the front and back surfaces, or each information display corresponding to the products displayed back to back in the space directly under the shelf label can be displayed on the front and back surfaces. Since there is a need to match the position of the shelf label, there is a problem that restrictions are placed on the display method of the product, the installation and use method of the shelf label. Furthermore, when placing as a shelf label corresponding to the products displayed in a horizontal row, the horizontal length of the display section is sufficient even though there is sufficient margin between the horizontal display length and the adjacent displayed products. There is a problem that the target product cannot be sufficiently explained because the length is not so long.

  The object of the present invention is to solve the above-mentioned problems, and to display two or more pieces of product information displayed back to back on the back and front and back side display unit panel of one information display device, and at the display position of the product. Correspondingly, the display area layout can be freely changed and displayed, and even when a plurality of products displayed in a horizontal row are displayed back to back, one information display device for the entire displayed products It is an object of the present invention to provide a double-sided display type long electronic information display panel that can display all information on a single information display device.

  The double-sided display type long electronic information display panel according to the present invention is an information display panel of a dot matrix type display system having a configuration in which an electrically drivable display medium is sealed in a space between two substrates with electrodes. Two independent display panels are arranged back to back, and the display area of the display panel is configured to be a rectangle having an aspect ratio of 1: 2 or more.

  As a suitable example of the double-sided display type long electronic information display panel of the present invention, the display area of the display unit panel is long with a length of 3 cm to 20 cm in the vertical direction and a length of 30 cm to 5 m in the horizontal direction. Between the counter electrodes formed by sealing the electrically driven display medium between two substrates with electrodes as a display medium configured to include charged particles, and forming a rectangular shape It is configured as a display unit panel of a dot matrix display system in which display information can be rewritten by applying a voltage based on an electrical signal to the display medium. In the case of forming with, the transparent electrode is provided in the short side direction (direction parallel to the short side) on the observation side substrate, and the metal electrode is provided in the long side direction (direction parallel to the long side) on the back side substrate. I have done it before.

  Moreover, as a suitable example of the double-sided display type long electronic information display panel of the present invention, a rewrite driving device or a driving power source (battery) corresponding to a rewriting signal is mounted on the back side of the back substrate. In addition, the rewrite signal is input wirelessly using a LAN (Local Area Network), a WAN (Wide Area Network), or a MAN (Metropolitan Area Network), or is input in a wired manner, so that a rewrite drive device is provided according to the rewrite signal. Has been configured to rewrite the display contents of the entire information display area of the display panel.

  According to the present invention, it is possible to display two or more pieces of product information displayed back to back on the front and back side display unit panel of one information display device, and to freely display the layout of the display area corresponding to the display position of the product. Therefore, it is possible to easily rewrite the information display in accordance with changes in the displayed products (changes in the display position, quantity, explanation contents, etc.). Even when a plurality of products displayed in a horizontal row are displayed back to back, one information display device is arranged for the entire displayed product, and all information on the displayed products is stored in one information display device. Can be displayed.

  In addition, according to the present invention, information can be rewritten in a lump for each display panel screen on the front and back of one information display device wirelessly or wiredly. There is no need to move the arrangement position, and information rewriting display can be performed in a short time.

  Furthermore, according to the present invention, since each display product can be a display panel having a display space (display area) with a sufficient margin in the horizontal direction, more product information can be displayed than before.

  Furthermore, according to the present invention, a metal electrode having a low electrical resistance is arranged as a line electrode in a direction parallel to the long side on the back side of the display region, and an ITO in a direction parallel to the short side on the display surface side of the display region. If a transparent electrode such as (indium tin oxide) is arranged as a line electrode, a double-sided display type long electronic information display panel can be obtained as an inexpensive passive drive type information display device. In such a display area with a large aspect ratio, a transparent line electrode such as ITO having a high electric resistance is arranged in parallel to the short side, and a metal line electrode having a low electric resistance is arranged in parallel to the long side to thereby end the long electrode. Due to a problem such as a voltage drop at the screen, the display contrast is not lowered and display unevenness can be eliminated.

<Overview of Double-side Display Type Long Electronic Information Display Panel of the Present Invention>
The feature of the double-sided display type long electronic information display panel of the present invention is that it is a dot matrix type information display panel in which an electrically drivable display medium is sealed in a space between two substrates with electrodes. In addition, two independent display panels are arranged back to back, and the display area of the display panel is configured to be a rectangle having a vertical / horizontal aspect ratio of 1: 2 or more. The display area is configured to be a long rectangle having a length of 3 cm to 20 cm in the vertical direction and a length of 30 cm to 5 m in the horizontal direction. Hereafter, the outline | summary of each structure of the double-sided display-type long electronic information display panel of this invention is demonstrated.

(About the display panel)
The display panel of the information display device is configured by a dot matrix display method in which an electrically drivable display medium is sealed in a space between two substrates, one of which is transparent. In a display panel in which the display medium includes charged particles and the charged particles are electrically driven by an electric field, a partition is provided in the space between the substrates, and the space is partitioned into a plurality of small rooms (cells) for display. The medium is preferably placed in the cell. Thereby, it is possible to prevent the charged particles (display medium) enclosed from being biased. When charged particles (display medium) are sealed in a microcapsule, the microcapsule has a function of a cell (small room), and thus it is not necessary to provide a cell (small room).

  Display media that can be electrically driven include a charged particle transfer method in which charged particles are driven in a gas space, a charged particle transfer method in which charged particles are driven in an insulating liquid (electrophoresis method), and a charge polarity that is halved. In addition, a rotating ball system that drives (rotates) charged particles composed of different colors in a microcapsule together with an insulating liquid, a cholesteric liquid crystal system, a system having a display memory property such as an electrochromic system, It can also be applied to a conventional liquid crystal type having no display memory property. Three cells (pixels) can be used as a display unit (one dot), and three primary color filters can be arranged for each pixel, and color dots can be displayed on a monochrome two-color display medium.

(About drive system)
In a system in which a display medium including a charged particle is driven by an electric field, electrodes are provided on two substrates in pairs, and the charged particles (display medium) are driven by an electric field formed between the counter electrodes to generate an image or the like. Rewrite the information display. The counter electrode can be formed by crossing line electrodes so as to cross each other at right angles, or can be formed by facing individual electrodes. In either case, an information display panel of a dot matrix display system can be obtained.

  A display medium driving type panel including charged particles can be driven passively because of a driving threshold value. In the case of a counter electrode constituted by line electrodes, a passive drive method can be applied, and in the case of a counter electrode constituted by individual electrodes, an active drive method can be applied. In either case, an information display panel of a dot matrix display system can be obtained.

  When the passive drive method is used for the line electrode, the transparent electrode made of a transparent conductive material such as ITO is provided on the transparent substrate side in parallel with the short side of the display unit, and the highly conductive metal electrode is provided on the back substrate side and on the long side of the display unit. Provide in parallel. As a result, a uniform electric field can be obtained at any position on the display unit, and uniform display can be achieved on the entire display unit screen.

(About each component)
As substrates, inorganic sheets such as glass and quartz, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyethylene (PE), polycarbonate (PC), polyimide (PI), polyethersulfone (PES), acrylic However, a transparent substrate is used as the observation side display surface.

  The width of the line metal electrode and the width of the transparent line electrode with a transparent line electrode such as ITO arranged in the short side direction of the display area and a line metal electrode such as copper arranged in the long side direction of the display area However, it is also preferable to make the width of the transparent line electrode slightly larger.

  Among the line-shaped electrodes arranged opposite to each other, the display surface side transparent substrate as a short side corresponding portion includes indium tin oxide (ITO), indium oxide, aluminum-doped zinc oxide (AZO), zinc-doped indium oxide (IZO), antimony Transparent line electrodes were formed using transparent conductive metal oxides such as tin oxide (ATO), conductive tin oxide, and conductive zinc oxide, and transparent conductive polymers such as polyaniline, polypyrrole, and polythiophene. Of the line-shaped electrodes arranged opposite to each other, the back side substrate as the long side corresponding portion is made of copper, aluminum, silver, nickel, gold, chromium, an alloy containing these as a main component (for example, Nd—Cr), or the like. A metal line electrode is formed.

  As a method for forming an electrode, a method of forming the above-described materials into a thin film by sputtering, vacuum deposition, CVD (chemical vapor deposition), coating, or the like, or mixing a conductive agent with a solvent or a synthetic resin binder. In addition to the coating method, a method of laminating a metal foil (for example, a rolled copper foil) is used. The above-mentioned material that can be patterned and is electrically conductive can be preferably used.

  The thickness of the electrode formed of the transparent conductive material may be 0.01 to 10 μm, preferably 0.05 to 5 μm, as long as conductivity can be secured and light transmittance is not hindered. Moreover, the thickness of the electrode formed of a metal material may be 0.01 to 10 μm, preferably 0.01 to 5 μm, as long as conductivity can be ensured.

<About the configuration of the display panel>
Next, a configuration example of a display unit panel used in the double-sided display type long electronic information display panel of the present invention will be described with reference to FIGS.

  First, a display medium moving type display unit panel including charged particles will be described as an example of a basic configuration of a display unit panel used in the double-sided display type long electronic information display panel of the present invention. In this display panel, an electric field is applied to a display medium having optical reflectivity and chargeability composed of at least one kind of particles enclosed in a space between two opposing substrates. Along with the applied electric field direction, the display medium is attracted by an electric field force or a Coulomb force, and the display medium is moved by a change in the electric field direction, whereby information such as an image is displayed. Therefore, it is necessary to design the display panel so that the display medium can move uniformly and maintain stability when rewriting the display repeatedly or when displaying the display information continuously. Here, as the force applied to the particles constituting the display medium, in addition to the force attracting each other by the Coulomb force between the particles, an electric mirror image force between the electrode and the substrate, an intermolecular force, a liquid cross-linking force, gravity and the like can be considered.

  The example shown in FIG. 1 shows an example of a display panel of a black and white dot matrix display of a charged particle gas electric field driving system, and at least different in optical reflectivity and charging characteristics composed of at least one kind of particles. A display medium 3 including two or more kinds of particles (here, a white display medium 3W composed of particles of display white particles 3Wa and a black display medium 3B composed of particles of display black particles 3Ba are shown). In each cell formed by the partition walls 4, the substrate depends on the electric field generated by applying a voltage between the line-shaped electrode 5 provided on the substrate 1 and the line-shaped electrode 6 provided on the substrate 2. Move vertically to 1 and 2. Then, as shown in FIG. 1, for each cell, the white display medium 3W is visually recognized by the observer and white dots are displayed, or the black display medium 3B is visually recognized by the observer and black dots are displayed. , White / black dots are displayed.

  In the example shown in FIG. 1, the line-shaped electrode 6 disposed on the display surface side is transparent and disposed in parallel with the short side, and the line-shaped electrode 5 disposed on the back side is not necessarily transparent. Rather than parallel to the long side. Further, in the example shown in FIG. 1, a dot matrix type display unit panel using line-shaped electrodes 5 and 6 is shown, but a display unit panel in which individual electrode pairs corresponding to each cell are arranged in a matrix may be used. it can. These modifications can be similarly applied to the following embodiments.

  In the example shown in FIG. 2, an example of a display panel of a color display of an electric field driving type in charged particle gas is shown. In addition to the panel having the structure shown in FIG. 1, cells 11-1 to 11-are used as display media. 3 is filled with a white display medium 3W configured to include white charged particles and a black display medium 3B configured to include black charged particles, and a red color filter 12R is formed on the viewer side of the first cell 11-1. A green color filter 12G is provided on the viewer side of the second cell 11-2, a blue color filter 22BL is provided on the viewer side of the third cell 11-3, and the first cell 11-1, A display unit (one dot) is composed of three cells, the second cell 11-2 and the third cell 11-3. In this example, when performing color display, as shown in FIG. 2, by moving the white display medium 3W in all of the first cell 11-1 to the third cell 11-3 to the viewer side, White dot display can be performed for the observer. Alternatively, by moving the black display medium 3 </ b> B in all of the first cell 11-1 to the third cell 11-3 on the viewer side, black dot display can be performed for the viewer. In FIG. 2, multicolor color dot display can be performed by moving the display medium in each cell. Here, the charged polarities of the white charged particles and the black charged particles are made to be opposite to each other.

  The example shown in FIG. 3 shows an example of a display panel for color display of an electric field drive type in charged particle gas, and the first cell 11-1 includes a white display medium configured to include white charged particles 3Wa. 3W and red display medium 3R including red charged particles 3Ra are filled, and the second cell 11-2 includes white display medium 3W including white charged particles 3Wa and blue charged particles 3BLa. The white display medium 3W including the white charged particles 3Wa and the green display medium 3G including the green charged particles 3Ga are filled in the third cell 11-3. Filled. In the display unit (pixel) shown in FIG. 3, dots are displayed in R color.

  The example shown in FIG. 4 shows an example of a display panel of a black-and-white dot matrix display of a microcapsule type charged particle liquid electric field drive method, and white charged particles 3Wa and black charged particles 3Ba are filled together with an insulating liquid 15. A microcapsule 16 is arranged to constitute a display panel. The example shown in FIG. 4 shows a state where white / black dots are displayed.

  FIG. 5 and FIG. 6 are diagrams showing an example of a double-sided display type display unit panel configured by three substrates. In the example shown in FIGS. 5 and 6, the two substrates 2 serving as the display surface may be transparent, and the substrate 1 serving as the central substrate may be either non-transparent or transparent. The example shown in FIG. 5 shows an example of a double-side display type display unit panel for monochrome display. The example shown in FIG. 6 shows an example of a color display double-sided display type display unit panel using color filters 12R, 12G, and 12BL.

  FIG. 7 and FIG. 8 are diagrams showing an example of a double-side display type display unit panel configured by two display unit panels. In the example shown in FIGS. 7 and 8, the two substrates 2 serving as the display surface may be transparent, and the two substrates 1 serving as the back surface may be either non-transparent or transparent. In the example shown in FIG. 7, an example of a double-sided display type display unit panel for monochrome display configured by bonding the display unit panel 1 and the display unit panel 2 with an adhesive layer 21 is shown. In the example shown in FIG. 8, an example of a color display double-side display type display unit panel configured by bonding the display unit panel 1 using the color filters 12R, 12G, and 12BL and the display unit panel 2 with an adhesive layer 21 is used. Show.

  FIG. 9 and FIG. 10 are diagrams showing an example of a display panel for area color display of an electric field driving method in charged particle gas. In the example shown in FIG. 9, area color display is performed using two upper and lower display areas including a display area in which the white display medium 3W / black display medium 3B is arranged and a display area in which the white display medium 3W / red display medium 3R is arranged. It is configured to do. In the example shown in FIG. 10, a display area in which the white display medium 3W / red display medium 3R is arranged, a display area in which the white display medium 3W / black display medium 3B is arranged, and the white display medium 3W and the blue display medium 3BL. It is configured to display area color using three display areas.

<About usage examples>
Next, a usage example of the double-sided display type long electronic information display panel of the present invention will be described with reference to FIGS.

  FIGS. 11A to 11D are diagrams for explaining one use example of the double-sided display type long electronic information display panel of the present invention. FIG. 11A shows a perspective view thereof, FIG. 11B shows a state when FIG. 11A is viewed from above, and FIGS. 11C and 11D respectively show A in FIG. 11B. A cross section along the line -A is shown. In the example shown in FIGS. 11A to 11D, the double-sided display-type long electronic information display panel 22 of the present invention is disposed above a back-to-back horizontal row of product display spaces 21. Reference numeral 23 denotes products arranged in the product display space 21. The double-sided display-type long electronic information display panel 22 is configured by installing a display unit panel A and a display unit panel B on both sides of a partition plate 24. Thereby, the display on the display unit panel A and the display on the display unit panel B can be used for displaying each product 23 in the product display space 21 divided by the partition plate 24. In the example shown in FIG. 11 (c), the two display unit panels A and the display unit panel B are back to back to form a double-sided display type long electronic information display panel 22. In the example shown in FIG. 11D, a double-sided display type long electronic information display panel 22 is configured by bending two display unit panels A and B along a center line.

  FIGS. 12 (a), 12 (b) and 13 (a), 13 (b) are diagrams for explaining other examples of use of the double-sided display type long electronic information display panel of the present invention. 12 (a) and 13 (a) show a front view thereof, and FIG. 12 (b) and FIG. 13 (b) show a side view thereof. In the example shown in FIGS. 12A and 12B, a double-sided display type long type composed of the display unit panel A and the display unit panel B of the present invention on the ceiling 25 above the product display space where the products 23 are arranged. An electronic information display panel 22 is arranged. In the example shown in FIGS. 13A and 13B, the display unit panel A and the display unit panel B of the present invention are formed above the partition plate 26 between the two product display spaces where the products 23 are arranged. A double-sided display type long electronic information display panel 22 is arranged.

  FIGS. 14A to 14D are views for explaining still other usage examples of the double-sided display type long electronic information display panel of the present invention. 14A shows a front view thereof, FIG. 14B shows a side view thereof, and FIGS. 14C and 14D show examples of display states of the display unit panel. In the example shown in FIGS. 14A to 14D, an example in which the double-sided display type long electronic information display panel 22 of the present invention is used as a hanging advertisement in a train is shown. For this purpose, in the example shown in FIGS. 14A and 14B, the double-sided display type long electronic information display panel 22 composed of the display unit panel A and the display unit panel B of the present invention is installed in a train. It is attached to the hanging advertisement mounting part 27. Then, the signal receiving device unit 28, the driving device unit 29, and the power source (battery) used for rewriting the advertisement contents from the outside to the portions other than the display unit panels A and B of the double-sided display type long electronic information display panel 22 30 is provided. As the hanging advertisement, the display unit panel A is divided into two screens as shown in FIG. 14A, and the display unit panel B is displayed on the entire screen as shown in FIG. Both the panel A and the display unit panel B can be divided and displayed, or the entire panel can be displayed without being divided.

  FIGS. 15A, 15B, 16A, and 16B are views for explaining still another usage example of the double-sided display type long electronic information display panel of the present invention. In the example shown in FIGS. 15A and 15B, the entire screen is rewritten so as to be divided and displayed on the display unit panel in accordance with the display position of the product. 15A shows a display example of the front side display unit panel, and FIG. 15B shows a display example of the back side display unit panel. Each product information (production area, price, comment) and each information separator A “line” image indicating “” is displayed on one screen. In the example shown in FIGS. 16 (a) and 16 (b), the content displayed separately on the front display panel and the content displayed separately on the back display panel according to the train wheel position of the product are independently rewritten. Yes. In the front display panel shown in FIG. 16 (a), information (origin, price, comment) for each product (apple) and a “line” image indicating a delimiter of each information are displayed on one screen. . On the back side display unit panel shown in FIG. 16B, information (origin, price, comment) for each product (mandarin orange) and a “line” image indicating a delimiter of each information are displayed on one screen. .

<About the production method>
Next, a method for manufacturing the double-sided display type long electronic information display panel of the present invention will be described with reference to FIGS.

  FIG. 17 is a view for explaining an example of a method for producing a double-sided display type long information display panel of the present invention. In the example shown in FIG. 17, the display-side substrate 2 and the back-side substrate 1 are shared, and two display unit panels A and B are formed as a single display unit panel. A double-sided display-type long information display panel 22 is obtained that is bent and has both the front and back sides composed of the display panel A and the display panel B.

  FIG. 18 is a diagram for explaining another example of a method for producing a double-sided display type long information display panel of the present invention. In the example shown in FIG. 18, the display unit panel A and the display unit panel B, which are separately formed in advance, are bonded back to back through the adhesive layer 21, and the front and back surfaces are composed of the display unit panel A and the display unit panel B. The double-sided display type long information display panel 22 is obtained.

  FIG. 19 is a view for explaining still another example of the method for producing the double-sided display type long information display panel of the present invention. In the example shown in FIG. 19, two display unit panels A and B are formed as one display unit panel using two display surface side substrates 2 and one back side substrate 1. The double-sided display-type long information display panel 22 having both the front and back surfaces composed of the display panel A and the display panel B is obtained by bending at the center line of the display panel. In the example shown in FIG. 19, the back-side substrate 1 is formed of a foldable substrate such as a resin, while the display-side substrate 2 is formed of a glass transparent substrate. The information display panel 22 can be manufactured.

  FIG. 20 is a view for explaining still another example of the method for producing the double-sided display type long information display panel of the present invention. In the example shown in FIG. 20, two transparent substrates 2 in which transparent line electrodes 6 are arranged in parallel to the short sides and metal line electrodes 5 are arranged on both sides of the substrate in directions parallel to the long sides. By attaching the substrate 1 as the central substrate and the substrate 2 on both sides of the substrate 1, the double-sided display type long information display panel 22 having both the display panel A and the display panel B on both sides. Have gained.

<About the line-shaped electrode arrangement>
Next, the line-shaped electrode arrangement in the double-sided display type long information display panel of the present invention will be described with reference to FIGS.

  FIGS. 21A to 21C are diagrams for explaining an example of line-shaped electrode arrangement in the double-sided display type long electronic information display panel of the present invention. In this example, as shown in FIG. 21A, the line-shaped electrode 5 is arranged on the back substrate 1 in a direction parallel to the long side of the back substrate 1. A square portion surrounded by a dotted line is a region constituting the display unit panel, and a lead line portion 31 extending from the line-shaped electrode 5 is provided outside the region to be the display unit panel. Further, as illustrated in FIG. 21B, the line-shaped transparent electrode 6 is arranged on the display surface side substrate 2 in a direction parallel to the short side of the display surface side substrate 2. Also in this example, a square part surrounded by a dotted line is a region constituting the display unit panel, and a lead line part 32 extending from the line-shaped transparent electrode 6 is provided. FIG. 21C shows a state in which a panel in which the substrate 1 on the back side and the substrate 2 on the display surface side are overlapped is viewed from the display surface side. The lead wire portions 31 and 32 are connected to the power source side via power source side connection members 33 and 34 in order to apply a voltage between the electrodes 5 and 6. The power supply side connection members 33 and 34 are made of TCP (Tape Carrier Package) or the like, and the long side power supply side connection member 34 is divided into a plurality of parts.

  22A to 22C are diagrams for explaining the state of the electrodes in more detail. Here, COG (Chip on Glass) is used for power supply side connection mounting. FIG. 22A is a diagram showing the line-shaped electrode 5, and FIG. 22B is a diagram showing the line-shaped transparent substrate 6. For the electrode 5 in the direction parallel to the long side shown in FIG. 22A, a metal material with good conductivity and low resistance such as neodymium chromium alloy, copper, gold, silver, or the like is used. For the transparent electrode 6 parallel to the short side shown in FIG. 22B, a transparent conductive material such as indium tin oxide or indium zinc oxide is used. In FIG. 22C, a chip used as a COG is shown as one long object, but usually a plurality of chips corresponding to the number of electrodes are used.

  FIG. 22 (c) shows the relationship between the rectangular grid-arranged cells and the counter electrode when the substrates are stacked so that the line-shaped electrodes formed on the substrate are orthogonal to each other. In the example shown in FIG. 22C, the cells are arranged in a lattice shape or a line shape. The shape of the cell may be a polygon such as a rectangle, a hexagon, or a triangle, a circle, an ellipse, a racetrack shape, etc., but the rectangle formed by the overlapping portion of the counter electrode is inscribed in the partition wall 4, or , So that it fits inside the partition 4. It is preferable to form a roundness in the joint portion of the partition wall 4 that becomes the corner portion of the cell.

  In this way, a metal electrode having a low electrical resistance is arranged as a line electrode in a direction parallel to the long side on the back side of the display region, and ITO (indium tin oxide) in a direction parallel to the short side on the display surface side of the display region. If transparent electrodes such as these are arranged as line electrodes, an inexpensive passive drive type information display device can be obtained. In such a display area with a large aspect ratio, a transparent line electrode such as ITO having a high electric resistance is arranged in parallel to the short side, and a metal line electrode having a low electric resistance is arranged in parallel to the long side to thereby end the long electrode. Due to a problem such as a voltage drop at the screen, the display contrast is not lowered and display unevenness can be eliminated.

<Receiving device and driving device>
FIGS. 23A to 23H are diagrams for explaining an example of the receiving device and the driving device in the double-sided display type long electronic information display panel of the present invention. In the examples of FIGS. 23A, 23E, and 23G, the rewriting information is transmitted together with a signal indicating which screen is to be rewritten, so that one receiving device unit 28 and one driving device unit 29 are provided. Thus, information rewriting on two screens can be performed. Of course, as in the examples of FIGS. 23B to 23D, f, and h, each of the two screens is equipped with the receiving device unit 28 and the driving device unit 29, and the two screens are independently provided. It can also be rewritten. At this time, as in the examples of FIGS. 23B, 23F, and 23H, when the back side substrate 1 is common, the receiving unit 28 and the driving unit 29 are connected to the common back side substrate. 1 is installed. On the other hand, as shown in FIGS. 23 (c) and 23 (d), when two screens are formed by bonding two display panels back to back, reception is performed on the substrate on the back side of each display panel. The device unit 28 and the drive device unit 29 are mounted.

  In the above-described example, the rewrite signal can be input wirelessly using a LAN (Local Area Network), a WAN (Wide Area Network), a MAN (Metropolitan Area Network), or the like. The rewrite drive device operates in response to the rewrite signal, and rewrites the display content of the entire information display area.

  EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples of the present invention. However, the present invention is not limited to the following examples.

Through the following steps, a display unit panel using a display medium including white negatively charged particles and a display medium including black positively charged particles was manufactured.
(1) Partition wall (rib) and electrode pattern forming process on substrate (2) Display medium filling process on substrate (3) Unnecessary display medium removal process on partition wall (4) Adhesive layer formation on partition wall Process (5) Bonding process of display surface side substrate and back surface side substrate

<Example 1>
A 30 Ω / □ ITO film (thickness: 1 μm) is formed on the surface of a display area (10 cm × 200 cm) of two long glass substrates 1 having a thickness of 200 μm, and then 10 cm long and 300 μm wide by a photoresist method. The line-like ITO electrode was patterned in a direction parallel to the short side of the display area. On the other side of the long polyethylene terephthalate (PET) substrate 2 having a thickness of 200 μm, a line having a length of 200 cm and a width of 300 μm is formed by sputtering in the surface long side direction of the portion to be two display regions (10 cm × 200 cm). The copper electrode was patterned.
Thereafter, a lattice-shaped partition wall pattern having a 320 μm square opening (this portion becomes a display cell) and a line width of 30 μm and a height of 40 μm is formed on each of the two substrates 1 on which the ITO electrodes are formed by a photoresist method. Thus, a partition wall-equipped substrate 1 was obtained.
After the white display medium (negatively charged) and the black display medium (positively charged) are combined and placed in the cell of the two substrates 1 with the same volume so as to be 25 vol%, the two substrates 1 are placed on the substrate 2. The electrodes were bonded so as to correspond to the positions of the two display areas patterned to obtain a long panel having two display areas.
Next, the back side substrate while the glass substrates were arranged in parallel was bent to obtain a double-sided display type long electronic information display panel having display areas on both the front and back sides.
An information display device was obtained.

<Example 2>
Two long polyethylene terephthalate (PET) substrates 1 and 2 having a thickness of 200 μm are prepared, and an ITO film of 30Ω / □ is formed on the surface of a portion to be two display areas (10 cm × 200 cm) on the PET substrate 1. After forming (thickness: 1 μm), a line-like ITO electrode having a length of 10 cm and a width of 300 μm was patterned in the direction parallel to the short side of the display region by a photoresist method. A line-shaped copper electrode having a length of 200 cm and a width of 300 μm was formed by patterning in the direction of the long side of the surface of the two display areas (10 cm × 200 cm) of the other PET substrate 2.
Thereafter, a square opening of 320 μm square (this portion becomes a display cell) and a line width of 30 μm and a height of 40 μm are formed on each of the two display regions on the PET substrate 1 on which the ITO electrode is formed by a photoresist method. A grid-like partition wall pattern was prepared as a partition-coated PET substrate 1.
After placing the white display medium (negatively charged) and the black display medium (positively charged) in the cell of the two display areas with the same volume so that the volume becomes 25 vol%, two of the PET substrates 1 The long display panel having two display areas was obtained by bonding the display areas so as to correspond to the positions of the two display areas obtained by patterning the electrodes of the PET substrate 2.
Next, the panel was bent while the two display areas were arranged in parallel to obtain a double-sided display type long electronic information display panel having display areas on both the front and back surfaces.

<Example 3>
A 30 Ω / □ ITO film (thickness: 1 μm) is formed on the surface of a long glass substrate 1 having a thickness of 200 μm on the surface of a display area (10 cm × 200 cm), and a line shape having a length of 10 cm and a width of 300 μm is formed by a photoresist method. An ITO electrode was patterned in a direction parallel to the short side of the display area. A line-shaped copper electrode having a length of 200 cm and a width of 300 μm was formed by patterning in the long side direction of the surface of the display region (10 cm × 200 cm) on the other long glass substrate 2 having a thickness of 200 μm.
Then, a 320 μm square opening (this portion becomes a display cell) and a grid-like partition pattern having a line width of 30 μm and a height of 40 μm are formed on the substrate 1 on which the ITO electrode is formed by a photoresist method. Attached substrate 1 was obtained.
After the white display medium (negatively charged) and the black display medium (positively charged) are combined and placed in the cell of the substrate 1 with the same volume so as to be 25 vol%, the display area of the substrate 1 and the electrode of the substrate 2 are patterned. The long panels having one display area were obtained by pasting them so that the positions correspond to the display areas.
In the same manner, another long display unit panel was prepared, and two long display unit panels were bonded back to back to obtain a double-sided display type long electronic information display panel having display areas on both the front and back sides. .

<Example 4>
A 30 Ω / □ ITO film (thickness: 1 μm) is formed on the surface of a display area (10 cm × 200 cm) of two long glass substrates 1 having a thickness of 200 μm, and then 10 cm long and 300 μm wide by a photoresist method. The line-like ITO electrode was patterned in a direction parallel to the short side of the display area.
Another line-shaped copper electrode having a length of 200 cm and a width of 300 μm is formed by sputtering in the long side direction of the other portion, which is the display area (10 cm × 200 cm) on both the front and back surfaces of the long glass substrate 2 having a thickness of 200 μm. A pattern was formed.
Thereafter, a lattice-shaped partition wall pattern having a 320 μm square opening (this portion becomes a display cell) and a line width of 30 μm and a height of 40 μm is formed on each of the two substrates 1 on which the ITO electrodes are formed by a photoresist method. Thus, a partition wall-equipped substrate 1 was obtained.
After the white display medium (negatively charged) and the black display medium (positively charged) are combined and placed in the cells of the two substrates 1 with the same volume so as to be 25 vol%, the display area of the substrate 1 and the substrate 2 are arranged. Display on both front and back sides as a long panel with a structure in which two substrates 1 are sandwiched between substrates 2 with electrodes patterned on both sides. A double-sided display type long electronic information display panel having a region was obtained.

<Example 5>
Two long polyethylene terephthalate (PET) substrates 1 and 2 having a thickness of 200 μm are prepared, and an ITO film of 30Ω / □ is formed on the surface of a portion to be two display areas (40 cm × 100 cm) on the PET substrate 1. After forming (thickness: 5 μm), a line-like ITO electrode having a length of 40 cm and a width of 300 μm was patterned by a photoresist method in a direction parallel to the short side of the display region. A line-shaped copper electrode having a length of 100 cm and a width of 300 μm was formed by patterning in the direction of the surface long side of the portion of the other PET substrate 2 which is to be two display areas (40 cm × 100 cm).
Thereafter, a square opening of 320 μm square (this portion becomes a display cell) and a line width of 30 μm and a height of 40 μm are formed on each of the two display regions on the PET substrate 1 on which the ITO electrode is formed by a photoresist method. A grid-like partition wall pattern was prepared as a partition-coated PET substrate 1.
After placing the white display medium (negatively charged) and the black display medium (positively charged) in the cell of the two display areas with the same volume so that the volume becomes 25 vol%, two of the PET substrates 1 The long display panel having two display areas was obtained by bonding the display areas so as to correspond to the positions of the two display areas obtained by patterning the electrodes of the PET substrate 2.
Next, the panel was bent while the two display areas were arranged in parallel to obtain a double-sided display type long electronic information display panel having display areas on both the front and back surfaces.

  The double-sided display type long electronic information display panel of the present invention is a price tag, shelf label, manual, POP (Point of Purchase advertising), advertisement, information board, etc. It can be applied to electronic information display devices.

It is a figure for demonstrating an example of a structure of the display part panel used for the double-sided display-type long electronic information display panel of this invention. It is a figure for demonstrating the other example of a structure of the display part panel used for the double-sided display-type long electronic information display panel of this invention. It is a figure for demonstrating the further another example of a structure of the display part panel used for the double-sided display-type long electronic information display panel of this invention. It is a figure for demonstrating the further another example of a structure of the display part panel used for the double-sided display-type long electronic information display panel of this invention. It is a figure for demonstrating the further another example of a structure of the display part panel used for the double-sided display-type long electronic information display panel of this invention. It is a figure for demonstrating the further another example of a structure of the display part panel used for the double-sided display-type long electronic information display panel of this invention. It is a figure for demonstrating the further another example of a structure of the display part panel used for the double-sided display-type long electronic information display panel of this invention. It is a figure for demonstrating the further another example of a structure of the display part panel used for the double-sided display-type long electronic information display panel of this invention. It is a figure for demonstrating the further another example of a structure of the display part panel used for the double-sided display-type long electronic information display panel of this invention. It is a figure for demonstrating the further another example of a structure of the display part panel used for the double-sided display-type long electronic information display panel of this invention. (A)-(d) is a figure for demonstrating one usage example of the double-sided display type | formula elongate type electronic information display panel of this invention, respectively. (A), (b) is a figure for demonstrating the other usage example of the double-sided display type | formula elongate type electronic information display panel of this invention, respectively. (A), (b) is a figure for demonstrating the further another usage example of the double-sided display-type long electronic information display panel of this invention, respectively. (A)-(d) is a figure for demonstrating the further another usage example of the double-sided display-type long electronic information display panel of this invention, respectively. (A), (b) is a figure for demonstrating the further another usage example of the double-sided display-type long electronic information display panel of this invention, respectively. (A), (b) is a figure for demonstrating the further another usage example of the double-sided display-type long electronic information display panel of this invention, respectively. It is a figure for demonstrating an example of the manufacturing method of the double-sided display-type long information display panel of this invention. It is a figure for demonstrating the other example of the preparation methods of the double-sided display-type long information display panel of this invention. It is a figure for demonstrating the further another example of the manufacturing method of the double-sided display-type long information display panel of this invention. It is a figure for demonstrating the further another example of the manufacturing method of the double-sided display-type long information display panel of this invention. (A)-(c) is a figure for demonstrating an example of the line-shaped electrode arrangement | positioning in the double-sided display-type long electronic information display panel of this invention, respectively. (A)-(c) is a figure for demonstrating in detail the state of an electrode, respectively. (A)-(h) is a figure for demonstrating an example of the receiver and drive device in a double-sided display-type long electronic information display panel of this invention, respectively.

Explanation of symbols

1, 2 Substrate 3 Display medium (particle group)
3W white display medium
3B Black display medium 3R Red display medium 3G Green display medium 3BL Blue display medium 3Wa White display particles
3Ba Black display particle 3Ra Red display particle 3Ga Green display particle 3BLa Blue display particle 4 Bulkhead 5, 6 Electrode 11-1, 11-2, 11-3 Cell 12R Red color filter 12G Green color filter 12BL Blue color filter DESCRIPTION OF SYMBOLS 15 Insulating liquid 16 Microcapsule 21 Merchandise display space 22 Double-sided display type long electronic information display panel 23 Commodity 24 Partition plate 25 Ceiling 26 Partition plate 27 Hanging advertisement attaching part 28 Signal receiving device part 29 Drive device part 30 Power supply 31, 32 Lead wire portion 33, 34 Power supply side connection member

Claims (6)

  In an information display panel of a dot matrix display system in which an electrically drivable display medium is sealed in a space between two electrodes-attached substrates, two independent display unit panels are arranged back to back. A double-sided display type long electronic information display panel characterized in that the display area of the display unit panel is configured to be a rectangle having an aspect ratio of 1: 2 or more.   The display area of the display panel is configured to be a long rectangular shape having a length in the vertical direction of 3 cm to 20 cm and a length in the horizontal direction of 30 cm to 5 m. Double-sided display type long electronic information display panel.   The electrically drivable display medium is sealed between two substrates with electrodes as a display medium including charged particles, and a voltage based on an electric signal is applied between counter electrodes formed by opposing electrodes. 3. A double-sided display type long electronic information display panel according to claim 1 or 2, wherein the display medium is configured as a dot matrix display type display unit panel which can rewrite display information by moving the display medium.   In the case where the display panel is formed by line-shaped electrodes that are opposed to each other, the transparent electrode is provided on the observation side substrate in the short side direction (direction parallel to the short side), and the metal electrode is provided on the back side substrate. The double-sided display type long electronic information display panel according to any one of claims 1 to 3, wherein the long-side electronic information display panel is provided in a long side direction (a direction parallel to the long side).   5. The double-sided display system according to claim 1, wherein a rewrite driving device or a driving power source (battery) corresponding to the rewriting signal is mounted on the back side of the rear substrate. Long electronic information display panel.   The rewrite drive device operates in response to the rewrite signal by inputting the rewrite signal wirelessly using a LAN (Local Area Network), WAN (Wide Area Network), or MAN (Metropolitan Area Network) or by wire. 6. The double-sided display type long electronic information display panel according to claim 5, wherein the display content of the entire information display area of the display unit panel is rewritten.

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