JP2007226548A - Information display device with writing function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information display device with a writing function capable of displaying information handwritten via a touch panel on the information display device constituted integrally with the touch panel. <P>SOLUTION: The information display device with the writing function is integrally constituted by an electrification driven type panel for information display having display memory property, the touch panel having a touch position detection function, and a driving device for displaying writing information. The information display device has an information display device for rewriting constituted to display the information written via the touch panel on the panel for information display. This information display device is a two-screen information display device that performs writing corresponding to the information displayed on the information display surface of the information display device for rewriting via the touch panel of the information display device for writing, stores the information displayed on both display surfaces as complex information, and mounts a storage reproduction device for separately reproducing and displaying it as the complex information on each display surface. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an information display device with a writing function in which a charging drive type information display panel having a display memory property, a touch panel having a touch type position detection function, and a drive device for writing information display are integrally formed. Is.

Conventionally, a display medium is sealed between two substrates, at least one of which is transparent, a voltage is applied between electrodes provided on each substrate, and an electric field is applied to the display medium, whereby the display medium is moved to display an image, etc. There is known an information display device in which an information display panel for displaying the above information and a dot spacer type touch panel composed of opposed position detection electrodes are integrally configured (see, for example, Patent Document 1).
JP 2004-45518 A

  FIG. 10 is a diagram for explaining an example of a conventional information display device having the above-described configuration. In the example illustrated in FIG. 11, the information display device 51 includes an information display panel 52 that displays information such as an image and a touch panel 53 that detects the position of input information, which are integrally stacked. The information display device 51 described above has a function of rewriting the display contents displayed on the information display panel 52 corresponding to the position information input from the touch panel 53. For example, as shown in FIG. 11, by selecting the characters “YES” or “NO” on the information display surface of the information display device 51 with the position indicator 54, the information on the information display 51 is selected according to the selected content. The display screen was rewritten.

  However, the above-described information display device 51 only has to input position information from the touch panel 54, such as a bank ATM, and has a function of writing information on the display surface of the information display panel 52 and displaying it. It wasn't. For this reason, the conventional information display device 51 cannot meet the demand for displaying handwritten information such as a memo or underline on the information display panel 52 by an input means such as a pen. Further, additional information cannot be written and displayed on information displayed by another means other than writing. Furthermore, the written processing information cannot be stored, reproduced, and displayed on the information display device.

  An object of the present invention is to solve the above-mentioned problems, and display information handwritten and written via a touch panel on an information display device integrated with the touch panel, and display it on the other rewritable information display device. Additional information corresponding to the recorded information can be displayed on the information display device for writing integrated with the touch panel, and further, the information displayed on the information display device for rewriting and the touch panel corresponding thereto are integrated. An information display device with a writing function that can store additional information displayed on the written information display device as integrated processing information, reproduce the processing information, and display it on the information display device any number of times is provided. It is something to try.

  The information display device with a writing function of the present invention comprises a charging drive type information display panel having a display memory property, a touch panel having a touch type position detection function, and a drive device for writing information display. An information display device for writing configured to display information written through a touch panel on an information display panel; an information display panel and a drive device for displaying rewritten information are configured integrally and rewritten information Is displayed on the information display panel, and writing corresponding to the information displayed on the information display surface of the information display device for rewriting is performed via the touch panel of the information display device for writing. Storage and playback device that stores the information displayed on both display surfaces as composite information and reproduces and displays the composite information separately on each display surface It is characterized in that the mounting to become two-screen information display device is characterized in.

  As a preferred example of the information display device with a writing function of the present invention, in the information display device for writing, the electromagnetic transfer type touch panel and the information display panel are arranged with the information display panel on the front and the electromagnetic transfer type touch panel on the back. In the information display device for writing, the resistive touch panel or the capacitive touch panel or the dot spacer touch panel and the information display panel are connected to the resistive touch panel or the electrostatic display. The capacitive touch panel or dot spacer touch panel is stacked and integrated so that the information display panel is placed on the front, and in the writing information display device, the touch panel and the information display panel are connected in parallel. That at least one of the information display panels A display medium composed of charged particles is sealed between two transparent substrates, a voltage is applied between electrodes provided on each substrate, and an electric field is applied to the display medium, thereby moving the display medium. It may be an information display panel that displays information such as images, or may be used as a manual, books, a mobile phone, or an electronic notebook.

  According to the present invention, a charging drive type information display panel having a display memory property and a touch panel having a touch-type position detection function are integrally configured, and information written by handwriting via the touch panel is displayed. An information display device for writing configured to display the information on the information display device; and an information display device for rewriting configured from another, preferably charge-driven information display panel having display memory characteristics. Additional information corresponding to the information displayed on the display surface is written to the writing information display device integrated with the touch panel, displayed on the display surface, and the information displayed on both display surfaces is stored as composite information. Thus, it is possible to obtain a two-screen information display device having a function of reproducing and displaying separately on each display surface.

  FIG. 1 is a diagram for explaining a configuration of an example of an information display device with a writing function according to the present invention. In the example shown in FIG. 1, the information display device 1 with a writing function of the present invention is configured integrally with a charge-driven information display panel 2 having display memory properties and a touch panel 3 having a touch-type position detection function. The information display device 4 for writing is configured to display information written by handwriting on the information display panel 2 through the touch panel 3; and the information rewriting panel configured by the charge drive type information display panel 5 having display memory characteristics. And an information display device 6;

  Then, writing corresponding to the information displayed on the display surface 7 of the rewriting information display device 6 is performed on the display surface 8 of the writing information display device 4, and the information displayed on both the display surfaces 7 and 8 is combined information. And a two-screen information display device having a function of reproducing on each of the display surfaces 7 and 8 is configured. In order to achieve the various functions described above, in the information display device with a writing function 1 of the present invention shown in FIG. 1, a write information display drive that performs position detection control by the touch panel 3 and drive control of the write information display device 4. Control device 10 for synchronizing / storing and synchronizing / reproducing display information in device 9, writing information display device 4 and rewriting information display device 6, and rewriting information display driving device 11 for controlling driving of rewriting information display device 6 And are provided integrally. In the example shown in FIG. 1, the touch panel 3 constituting the writing information display device 4 is laminated on the upper surface (front side) of the display device 4, but it can also be laminated on the lower surface (back side). As an example of the touch panel 3 disposed on the back side, an electromagnetic transfer type touch panel can be suitably used. In this case, an electronic pen that transmits electromagnetic waves is used as a writing input pen. The writing information display device 4 can also be configured by dividing the touch panel 3 and the information display panel 2 into left and right parts.

  2 and 3 are diagrams for explaining examples of use of the information display device with a writing function of the present invention. In the example shown in FIG. 2, a comment about information displayed on the display surface 7 (left side) of the rewriting information display device 6 is written on the display surface 8 (right side) of the writing information display device 4 with the writing pen 12. Show. The example shown in FIG. 3 shows a state in which the composite information with the write information added is reproduced and displayed again on the information display device with a write function. Hereinafter, the touch panel 3 and the information display panel 2 will be described in detail.

<About touch panel 3>
As the touch panel 3, the position of the writing input pen 5 as an input means is determined by a pressure method, a capacitance method, an electromagnetic transfer method, an optical coupling method, a surface acoustic wave (including ultrasonic wave) coupling method, a dot spacer method, or the like. Use something that can be detected.

  It is preferable to correspond to a spatially overlapping portion of counter electrodes arranged on the counter substrate of the display device so that the detection position unit of the touch panel 3 is a unit pixel. It is also preferable that the switch is turned on at the position where the pen tip of the writing input pen 4 is pressed against the touch panel 3 so that the rewriting voltage is applied to the electrode of the corresponding display device.

<Regarding Charging Drive Type Information Display Panels 2 and 5>
The charge-driven information display panels 2 and 5 are composed of two-color display media (consisting of two-color display colored particles having different charging characteristics) and cells (partition walls) between at least one of the transparent substrates. It is preferable to have a structure sealed in (1).

  In the information display panel 2 of the writing information display device 4, an independent counter electrode is provided on each substrate. These counter electrodes can be passively driven as line electrodes orthogonal to each other, or can be actively driven as individual electrodes corresponding to the cells.

  The information display panel 5 of the rewritable information display device 6 may be a display panel (liquid crystal type, electrophoretic particle type, etc.) other than the charge drive type information display panel, but a charge drive type display having a display memory property. The panel is preferably used. In this case, the writing information display device 4 configured in combination with the touch panel 3 can have the same configuration or a different configuration such as changing the particle color.

  The charging drive type information display panels 2 and 5 are subdivided into three pixels of cells formed by partition walls, and two-color display composed of two-color display colored particles each having different charging characteristics. A structure in which a medium (black display medium & red display medium, black display medium & green display medium, black display medium & blue-violet display medium) is sealed in a cell (formed by a partition wall) between at least one of the transparent substrates You can also

  The charging drive type information display panels 2 and 5 are subdivided into three pixels of cells formed by partition walls, and two-color display composed of two-color display colored particles each having different charging characteristics. Sealing structure for medium (white display medium & cyan display medium, white display medium & magenta display medium, white display medium & yellow display medium) in a cell (formed by a partition) between at least one transparent substrate It can also be.

  When the display medium color is black and white and three primary color filters are provided for each cell, color display is possible.

  Charge-driven type information display panels 2 and 5 are formed as a single-color display medium (consisting of colored particles for display having charging characteristics) and at least one cell between transparent substrates (formed by partition walls). It is also possible to have a configuration in which a color plate of a color different from the colored particles for display is arranged on the back substrate side of the display device.

  Hereinafter, an example of an information display panel suitably used in the writing information display device and the rewritable information display device of the present invention will be described in detail.

  First, the basic configuration of the information display panel of the present invention will be described. In the information display panel which is an object of the present invention, an electric field is applied to a display medium sealed between two opposing substrates. Along with the applied electric field direction, the charged display medium is attracted by the electric field force or Coulomb force, etc., and the display medium changes the moving direction by the electric field direction change due to the potential switching, thereby displaying information such as an image. Made. Therefore, it is necessary to design the information 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.

  An example of an information display panel that is an object of the present invention will be described with reference to FIGS. 4 (a) and 4 (b). In the example shown in FIGS. 4A and 4B, at least two or more types of display media 23 (here, the display white particles 23Wa) having different optical reflectance and charging characteristics composed of at least one type of particles. A voltage is applied between the electrode 25 provided on the substrate 21 and the electrode 26 provided on the substrate 22, with the white display medium 23 </ b> W including the particle group and the black display medium 23 </ b> B including the particle group of the display black particles 23 </ b> Ba). Depending on the electric field generated, the substrate 21 and 22 are moved vertically to make the black display medium 23B visually recognized by the observer to display black, or the white display medium 23W is visually recognized by the observer. White display. In the example shown in FIG. 4B, a cell is formed by providing partition walls 24 between the substrates 21 and 22, for example, in a lattice shape. Moreover, in FIG.4 (b), the partition in front is abbreviate | omitted. Further, the electrodes may be provided outside the substrate or embedded in the substrate.

  The above description applies to the case where the white display medium 23W made of the particle group is replaced with the white medium made of the powder fluid, and the black display medium 23B made of the particle group is replaced with the black display medium made of the powder fluid. I can do it. The powder fluid will be described later. The color of the display medium particles is not limited to white / black, and various color combinations are possible.

  Hereinafter, each member which comprises the information display panel of this invention is demonstrated.

  As for the substrate, at least one of the substrates is a transparent substrate 22 on which the color of the display medium can be confirmed from the outside of the information display panel, and a material having high visible light transmittance and good heat resistance is preferable. The substrate 21 may be transparent or opaque. Examples of substrate materials include polymer sheets such as polyethylene terephthalate, polyethylene naphthalate, polyethersulfone, polyethylene, polycarbonate, polyimide, and acrylic, flexible materials such as metal sheets, and glass and quartz. An inorganic sheet having no flexibility is mentioned. The thickness of the substrate is preferably from 2 to 5000 μm, more preferably from 5 to 2000 μm. If it is too thin, it will be difficult to maintain the strength and the spacing uniformity between the substrates, and if it is thicker than 5000 μm, it will be a thin information display panel. Is inconvenient.

  Electrode forming materials include metals such as aluminum, silver, nickel, copper, and gold, and conductive materials such as indium tin oxide (ITO), indium oxide, conductive tin oxide, antimony tin oxide (ATO), and conductive zinc oxide. Conductive polymers such as metal oxides, polyaniline, polypyrrole, and polythiophene are exemplified and appropriately selected and used. 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. The method of apply | coating is used. The electrode provided on the display surface side substrate 22 that needs to be transparent on the viewing side needs to be transparent, but the electrode provided on the back side substrate 21 does not need to be transparent. In any case, the above-mentioned material that can be patterned and is electrically conductive can be suitably used. Note that the electrode thickness is not particularly limited as long as the conductivity can be secured and the light transmittance is not hindered, and is preferably 3 to 1000 nm, preferably 5 to 400 nm. The material and thickness of the electrode provided on the back side substrate 21 are the same as those of the electrode provided on the display surface side substrate described above, but need not be transparent. In this case, the external voltage input may be superimposed with a direct current or an alternating current.

The shape of the partition wall 24 provided on the substrate as needed is appropriately set appropriately depending on the type of display medium involved in display, the shape and arrangement of the electrodes to be arranged, and is not limited in general. The height of the partition is adjusted to 100 to 100 μm, preferably 3 to 50 μm, and the height of the partition wall to 10 to 100 μm, preferably 10 to 50 μm.
In forming the partition walls, a both-rib method in which ribs are formed on each of the opposing substrates 21 and 22 and then bonded, and a single-rib method in which ribs are formed only on one substrate are conceivable. In the present invention, any method is preferably used.
As shown in FIG. 5, the cells formed by the partition walls made up of these ribs are illustrated in a square shape, a triangular shape, a line shape, a circular shape, and a hexagonal shape as viewed from the substrate plane direction. And a mesh shape. It is better to make the portion corresponding to the cross section of the partition wall visible from the display surface side (the area of the cell frame) as small as possible, and the display becomes clearer.
Examples of the method for forming the partition include a mold transfer method, a screen printing method, a sand blast method, a photolithography method, and an additive method. Any of these methods can be suitably used for the information display panel of the present invention, and among these, a photolithography method using a resist film and a mold transfer method are suitably used.

  Next, for example, a powder fluid used as a display medium composed of colored particles for display will be described. As for the name of the powder fluid used in the information display panel of the present invention, the present applicant has obtained the right of “Electronic Powder Fluid (registered trademark): Registration No. 4636931”.

  The “powder fluid” in the present invention is a substance in an intermediate state of both fluid and particle characteristics that exhibits fluidity by itself without borrowing the force of gas or liquid. For example, liquid crystal is defined as an intermediate phase between a liquid and a solid, and has fluidity that is a characteristic of liquid and anisotropy (optical properties) that is a characteristic of solid (Heibonsha: Encyclopedia) . On the other hand, the definition of particle is an object with a finite mass even if it is negligible, and is said to be affected by gravity (Maruzen: Physics Encyclopedia). Here, even in the case of particles, there are special states of gas-solid fluidized bed and liquid-solid fluids. When gas is flowed from the bottom plate to the particles, upward force is applied to the particles according to the velocity of the gas. Is a gas-solid fluidized bed that is in a state where it can easily flow when it balances with gravity, and it is also called a liquid-solid fluidized state that is fluidized by a fluid (ordinary) Company: Encyclopedia). As described above, the gas-solid fluidized bed body and the liquid-solid fluid are in a state of using a gas or liquid flow. In the present invention, it has been found that a substance in a state of fluidity can be produced specifically without borrowing the force of such gas and liquid, and this is defined as powder fluid.

  That is, the pulverulent fluid in the present invention is in an intermediate state having both the characteristics of particles and liquid, as in the definition of liquid crystal (liquid and solid intermediate phase), and is the characteristic of the above-mentioned particles. It is a substance that is extremely unaffected and exhibits a unique state with high fluidity. Such a substance can be obtained in an aerosol state, that is, in a dispersion system in which a solid or liquid substance is stably suspended as a dispersoid in a gas, and the solid substance is regarded as a dispersoid in the information display panel of the present invention. To do.

The information display panel to which the present invention is applied encloses a powder fluid that exhibits high fluidity in an aerosol state in which at least one is transparent, between opposed substrates, for example, solid particles in gas are stably suspended as a dispersoid Such a powder fluid can be easily and stably moved by a Coulomb force or the like with a small electric field force or the like.
As described above, for example, the powder fluid used as a display medium in the present invention is a substance in an intermediate state between fluid and particles that exhibits fluidity by itself without borrowing the force of gas or liquid. It is. This powder fluid can be in an aerosol state in particular, and in the information display panel of the present invention, it is used as a display medium in a state where a solid substance floats relatively stably as a dispersoid in the gas.

Next, display medium particles (hereinafter also referred to as particles) constituting the display medium in the information display panel that is the subject of the present invention will be described. The display medium particles are composed of the display medium particles as they are to form a display medium, or are combined with other particles to form a display medium, or adjusted and configured to become a powder fluid to form a display medium. Or used.
The particles can contain a charge control agent, a colorant, an inorganic additive, and the like, as necessary, in the resin as the main component, as necessary. Examples of resins, charge control agents, colorants, and other additives will be given below.

  Examples of the resin include urethane resin, urea resin, acrylic resin, polyester resin, acrylic urethane resin, acrylic urethane silicone resin, acrylic urethane fluororesin, acrylic fluororesin, silicone resin, acrylic silicone resin, epoxy resin, polystyrene resin, styrene Acrylic resin, polyolefin resin, butyral resin, vinylidene chloride resin, melamine resin, phenol resin, fluororesin, polycarbonate resin, polysulfone resin, polyether resin, polyamide resin and the like can be mentioned, and two or more kinds can be mixed. In particular, acrylic urethane resin, acrylic silicone resin, acrylic fluororesin, acrylic urethane silicone resin, acrylic urethane fluororesin, fluororesin, and silicone resin are suitable from the viewpoint of controlling the adhesive force with the substrate.

  The charge control agent (CCA) is not particularly limited, but examples of the negative charge control agent include salicylic acid metal complexes, metal-containing azo dyes, metal-containing oil-soluble dyes (including metal ions and metal atoms), quaternary Ammonium salt compounds, calixarene compounds, boron-containing compounds (benzyl acid boron complexes), nitroimidazole derivatives and the like can be mentioned. Examples of the positive charge control agent include nigrosine dyes, triphenylmethane compounds, quaternary ammonium salt compounds, polyamine resins, imidazole derivatives, and the like. In addition, metal oxides such as ultrafine silica, ultrafine titanium oxide, ultrafine alumina, nitrogen-containing cyclic compounds such as pyridine and derivatives and salts thereof, various organic pigments, resins containing fluorine, chlorine, nitrogen, etc. are also charged. It can also be used as a control agent.

  As the colorant, various organic or inorganic pigments and dyes as exemplified below can be used.

Examples of the black colorant include carbon black, copper oxide, manganese dioxide, aniline black, activated carbon and the like.
Examples of blue colorants include C.I. I. Pigment blue 15: 3, C.I. I. Pigment Blue 15, Bituminous Blue, Cobalt Blue, Alkaline Blue Lake, Victoria Blue Lake, Phthalocyanine Blue, Metal-free Phthalocyanine Blue, Phthalocyanine Blue Partial Chlorides, Fast Sky Blue, Indanthrene Blue BC, and the like.
Examples of red colorants include bengara, cadmium red, red lead, mercury sulfide, cadmium, permanent red 4R, risor red, pyrazolone red, watching red, calcium salt, lake red D, brilliant carmine 6B, eosin lake, rhodamine lake B, Alizarin Lake, Brilliant Carmine 3B, C.I. I. Pigment Red 2 etc.

Yellow colorants include chrome yellow, zinc yellow, cadmium yellow, yellow iron oxide, mineral first yellow, nickel titanium yellow, navel yellow, naphthol yellow S, Hansa Yellow G, Hansa Yellow 10G, Benzidine Yellow G, Benzidine Yellow GR, Quinoline Yellow Lake, Permanent Yellow NCG, Tartrazine Lake, C.I. I. Pigment Yellow 12 etc.
Examples of green colorants include chrome green, chromium oxide, pigment green B, C.I. I. Pigment Green 7, Malachite Green Lake, Final Yellow Green G, etc.
Examples of the orange colorant include red chrome yellow, molybdenum orange, permanent orange GTR, pyrazolone orange, Vulcan orange, indanthrene brilliant orange RK, benzidine orange G, indanthrene brilliant orange GK, C.I. I. Pigment Orange 31 etc.
Examples of purple colorants include manganese purple, first violet B, and methyl violet lake.
Examples of white colorants include zinc white, titanium oxide, antimony white, and zinc sulfide.

  Examples of extender pigments include barite powder, barium carbonate, clay, silica, white carbon, talc, and alumina white. Examples of various dyes such as basic, acidic, disperse, and direct dyes include nigrosine, methylene blue, rose bengal, quinoline yellow, and ultramarine blue.

Examples of inorganic additives include titanium oxide, zinc white, zinc sulfide, antimony oxide, calcium carbonate, lead white, talc, silica, calcium silicate, alumina white, cadmium yellow, cadmium red, cadmium orange, titanium yellow, Examples include bitumen, ultramarine blue, cobalt blue, cobalt green, cobalt violet, iron oxide, carbon black, manganese ferrite black, cobalt ferrite black, copper powder, and aluminum powder.
These pigments and inorganic additives can be used alone or in combination. Of these, carbon black is particularly preferable as the black pigment, and titanium oxide is preferable as the white pigment.
Various colored agents described above can be blended to produce colored particles for display having a desired color.

  The colored particles for display (hereinafter also referred to as “particles”) have an average particle diameter d (0.5) in the range of 1 to 20 μm and are preferably uniform. If the average particle diameter d (0.5) is larger than this range, the display is not clear. If the average particle diameter d (0.5) is smaller than this range, the cohesive force between the particles becomes too large, which hinders movement as a display medium.

Furthermore, in the present invention, regarding the particle size distribution of each particle, the particle size distribution Span represented by the following formula is less than 5, preferably less than 3.
Span = (d (0.9) −d (0.1)) / d (0.5)
(However, d (0.5) is a numerical value expressing the particle diameter in μm that 50% of the particles are larger than this and 50% is smaller than this, and d (0.1) is a particle in which the ratio of the smaller particles is 10%. (Numerical value expressed in μm, and d (0.9) is a numerical value expressed in μm for a particle diameter of 90% or less.)
By keeping Span within a range of 5 or less, the size of each particle is uniform, and movement as a uniform display medium becomes possible.

  Furthermore, regarding the correlation between the particles, the ratio of the d (0.5) of the particles having the minimum diameter to the d (0.5) of the particles having the maximum diameter among the used particles is set to 50 or less, preferably 10 or less. It is essential. Even if the particle size distribution Span is reduced, particles with different charging characteristics move in opposite directions, so that the particle size is close to each other and each particle can be easily moved in the opposite direction by the equivalent amount. This is within this range.

The particle size distribution and the particle size can be obtained from a laser diffraction / scattering method or the like. When laser light is irradiated onto particles to be measured, a light intensity distribution pattern of diffracted / scattered light is spatially generated, and this light intensity pattern has a corresponding relationship with the particle diameter, so that the particle diameter and particle diameter distribution can be measured. .
Here, the particle size and particle size distribution in the present invention are obtained from a volume-based distribution. Specifically, using a Mastersizer2000 (Malvern Instruments Ltd.) measuring instrument, put particles into a nitrogen stream and use the attached analysis software (software based on volume-based distribution using Mie theory). The diameter and particle size distribution can be measured.

  The charge amount of the display medium particles naturally depends on the measurement conditions, but the charge amount of the display medium particles in the information display panel is almost the same as the initial charge amount, the contact with the partition walls, the contact with the substrate, and the elapsed time. It was found that depending on the charge decay, the saturation value of the charging behavior of the particles for the display medium is a dominant factor.

  As a result of intensive studies, the inventors have been able to evaluate the range of appropriate charging characteristic values of colored particles for display by measuring the charge amount of particles used in the display medium using the same carrier particles in the blow-off method. I found.

Furthermore, when applying a display medium such as a particle group or a powdered fluid composed of colored particles for display to the information display panel that is the subject of the present invention, the management of the gas in the gap surrounding the display medium between the substrates is possible. It is important and contributes to improved display stability. Specifically, it is important that the relative humidity at 25 ° C. is 60% RH or less, and preferably 50% RH or less for the humidity of the gas in the gap.
4 (a) and 4 (b), the gap portions are electrodes 25 and 26 (when electrodes are provided inside the substrate) from the portion sandwiched between the opposing substrate 21 and substrate 22, and the display medium 23. A gas portion in contact with a so-called display medium excluding an occupied portion, an occupied portion of the partition wall 24 (when a partition wall is provided), and a seal portion of the information display panel is meant.
The gas in the gap is not limited as long as it is in the humidity region described above, but dry air, dry nitrogen, dry argon, dry helium, dry carbon dioxide, dry methane, and the like are preferable. This gas needs to be sealed in an information display panel so that the humidity is maintained, for example, filling a display medium, assembling an information display panel in a predetermined humidity environment, It is important to apply a sealing material and a sealing method that prevent moisture from entering from the outside.

The distance between the substrates in the information display panel that is the subject of the present invention is not limited as long as the display medium can be moved and the contrast can be maintained, but is usually adjusted to 10 to 500 μm, preferably 10 to 200 μm.
The volume occupation ratio of the display medium in the space between the opposing substrates is preferably 5 to 70%, more preferably 5 to 60%. If it exceeds 70%, the movement of the display medium is hindered, and if it is less than 5%, the contrast tends to be unclear.

<Use of information display device with writing function of the present invention>
6 to 9 are diagrams for explaining the use of the information display device with a writing function of the present invention. In any example, the characteristic of the information display device with a writing function of the present invention is that information can be written and displayed on the information display panel by inputting via the touch panel, and the written information (display information) is powered on. Uses the point that it can be displayed in the cut state, the writing corresponding to the information display screen is stored on the writing display surface, and the display information on both display surfaces is stored in synchronization with each other and can be played back synchronously. ing.

  FIGS. 6A and 6B are diagrams for explaining the use as a manual. In the example shown in FIGS. 6A and 6B, the electronic manual 31 is an information display device with a writing function according to the present invention, and is configured integrally with a rewrite information display surface 32 and a touch panel configured by the information display device. And a writing information display surface 33. Reference numeral 34 denotes a writing pen for writing a comment or the like on the writing information display surface 33, and reference numeral 35 denotes a driving device. First, as illustrated in FIG. 6A, additional description information is written on the writing information display surface 33 on the right side with the writing pen 34 with respect to the information displayed on the rewriting information display surface 32 on the left side. Then, after switching the display screen, as shown in FIG. 6B, it is possible to return to the original screen again and display the processing information (composite information) to which the writing information is added.

  FIGS. 7A and 7B are diagrams for explaining the use as books. Here, the books mean newspapers, magazines, textbooks, and the like. In the example shown in FIGS. 7A and 7B, the electronic book 36 is an information display device with a writing function of the present invention, as in the example shown in FIGS. 6A and 6B. And a rewrite information display surface 32 constituted by a writing information display surface 33 integrally formed with the touch panel. Reference numeral 34 denotes a writing pen for writing a comment or the like on the writing information display surface 33, and reference numeral 35 denotes a driving device. Also in this example, as shown in FIG. 7A, additional description information is written on the writing information display surface 33 on the right side with the writing pen 34 with respect to the information displayed on the rewriting information display surface 32 on the left side. Then, after switching the display screen, as shown in FIG. 7B, it is possible to return to the original screen again and display the processing information (composite information) to which the writing information is added.

  FIGS. 8A and 8B are diagrams for explaining the use as a mobile phone. In the example shown in FIGS. 8A and 8B, the mobile phone 37 is the information display device with a writing function of the present invention, as in the example shown in FIGS. 6A and 6B. Is composed of a rewrite information display surface 32 and a writing information display surface 33 integrally formed with the touch panel. Reference numeral 34 denotes a writing pen, and a driving device 35 is built in a mobile phone 37. The example shown in FIG. 8A shows an example in which the write information display surface 33 is provided on the inner side, and the example shown in FIG. 8B shows an example in which the write information display surface 33 is provided on the outer side. In any example, the method of using them is the same as the example shown in FIGS. 6A and 6B and the example shown in FIGS. 7A and 7B.

  FIGS. 9A and 9B are diagrams for explaining the use as an electronic notebook. In the example shown in FIGS. 9A and 9B, the electronic notebook 38 is an information display device with a writing function according to the present invention, as in the examples shown in FIGS. 6A and 6B. Is composed of a rewrite information display surface 32 and a writing information display surface 33 integrally formed with the touch panel. Reference numeral 34 denotes a writing pen, and 35 denotes a driving device. In this example, a button 39 such as a page feed button is added to the driving device 35. The usage method is the same as the example shown in FIGS. 6A, 6B, 7A, and 7B, but in addition, a page feed / return function is added by operating the button 39. It is easy to use.

  The information display device with a writing function of the present invention is an information display panel having a display memory property and an information display panel and a touch panel having a touch-type position detection function, which are integrally configured, and information written by handwriting via the touch panel. Information display device configured to display the information on the information display panel; and a rewrite information display device configured with another, preferably charge-driven information display panel having display memory characteristics; Additional information corresponding to the information displayed on the display surface of the information display device is written to the writing information display device integrated with the touch panel, displayed on the display surface, and the information displayed on both display surfaces is displayed. Since it is possible to obtain a two-screen information display device having the function of storing it as composite information and reproducing and displaying it on each display surface separately, S, mobile phones, can be suitably used as an electronic organizer.

It is a figure for demonstrating the structure of an example of the information display apparatus with a writing function of this invention. It is a figure for demonstrating the usage example of the information display apparatus with a writing function of this invention. It is a figure for demonstrating the usage example of the information display apparatus with a writing function of this invention. (A), (b) is a figure which shows an example of the information display panel suitably used for the information display apparatus with a writing function of this invention, respectively. It is a figure which shows an example of the shape of the partition in the information display panel used suitably for the information display apparatus with a writing function of this invention. (A), (b) is a figure for demonstrating an example of the use of the information display apparatus with a writing function of this invention, respectively. (A), (b) is a figure for demonstrating the other example of the use of the information display apparatus with a writing function of this invention, respectively. (A), (b) is a figure for demonstrating the further another example of the use of the information display apparatus with a writing function of this invention, respectively. (A), (b) is a figure for demonstrating the further another example of the use of the information display apparatus with a writing function of this invention, respectively. It is a figure for demonstrating the problem in the conventional information display apparatus. It is a figure for demonstrating the problem in the conventional information display apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Information display apparatus with a write function 2, 5 Information display panel 3 Touch panel 4 Information display apparatus for writing 6 Information display apparatus for rewriting 7, 8 Display surface 9 Drive apparatus for writing information display 10 Control apparatus 11 Drive apparatus for rewriting information display 12 Writing pen 21, 22 Substrate 23 Display medium (particle group, powder fluid)
23W White display medium 23Wa White particles for display 23B Black display medium 23Ba Black particles for display 24 Bulkhead 25, 26 Electrode 31 Electronic manual 32 Rewrite information display surface 33 Write information display surface 34 Writing pen 35 Drive device 36 Electronic book 37 Mobile phone 38 Electronic notebook 39 button

Claims (6)

  An information display panel with a charge-drive type that has display memory characteristics, a touch panel with a touch-type position detection function, and a drive unit for writing information display are integrated to display information written via the touch panel. An information display device for writing configured to be displayed on a display panel; an information display panel and a drive device for displaying rewritten information are integrally configured to display the rewritten information on the information display panel The information display device for rewriting, and writing corresponding to the information displayed on the information display surface of the information display device for rewriting is performed via the touch panel of the information display device for writing and displayed on both display surfaces. A two-screen information display device equipped with a storage / reproduction device for storing information as composite information and reproducing / displaying the composite information separately on each display surface Write function information display device characterized by.   In the information display device for writing, the electromagnetic transmission / reception type touch panel and the information display panel are laminated and integrated so that the information display panel is disposed on the front surface and the electromagnetic transmission / reception touch panel is disposed on the rear surface. Item 4. An information display device with a writing function according to Item 1.   In the information display device for writing, the resistive touch panel, the capacitive touch panel or the dot spacer touch panel and the information display panel are placed on the front surface, and the resistive touch panel, the capacitive touch panel or the dot spacer touch panel is on the front. 2. The information display device with a writing function according to claim 1, wherein the display panel is integrally formed so as to be disposed on the back surface.   2. The information display device with a writing function according to claim 1, wherein the touch panel and the information display panel are integrated in parallel in the information display device for writing.   An information display panel encloses a display medium composed of charged particles between two substrates at least one of which is transparent, applies a voltage between electrodes provided on each substrate, and applies an electric field to the display medium. The information display device with a writing function according to claim 1, wherein the information display panel displays information such as an image by moving a display medium.   6. The information display device with a writing function according to claim 1, wherein the information display device is used as any one of a manual, books, a mobile phone, and an electronic notebook.

Images