WO2004079442A1 - Production method for iamge display unit and image display unit - Google Patents

Production method for iamge display unit and image display unit Download PDF

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Publication number
WO2004079442A1
WO2004079442A1 PCT/JP2004/002860 JP2004002860W WO2004079442A1 WO 2004079442 A1 WO2004079442 A1 WO 2004079442A1 JP 2004002860 W JP2004002860 W JP 2004002860W WO 2004079442 A1 WO2004079442 A1 WO 2004079442A1
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WO
WIPO (PCT)
Prior art keywords
particles
substrate
image display
partition wall
liquid powders
Prior art date
Application number
PCT/JP2004/002860
Other languages
French (fr)
Japanese (ja)
Inventor
Ryou Sakurai
Hidetoshi Hiraoka
Hajime Kitano
Taichi Kobayashi
Kazuyoshi Akuzawa
Hiroyuki Anzai
Original Assignee
Bridgestone Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2003059685 priority Critical
Priority to JP2003-059685 priority
Priority to JP2003148897 priority
Priority to JP2003-148897 priority
Application filed by Bridgestone Corporation filed Critical Bridgestone Corporation
Publication of WO2004079442A1 publication Critical patent/WO2004079442A1/en

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/165Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field
    • G02F1/166Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
    • G02F1/167Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/165Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field
    • G02F1/166Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
    • G02F1/1671Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect involving dry toners

Abstract

A production method for an image display unit in which a particle group or a powder/particle material is sealed between two facing substrates at least one of which is transparent, and an electric field is generated between the substrates to move particles or a powder/particle material and hence display an image, and which comprises a plurality of display cells sectioned by partitions, wherein, when a particle group or a powder/particle material is sealed into cells sectioned by partitions between substrates, a mask is set on a partition upper surface (first invention). In addition, a production method for an image display unit provided with an image displaying panel in which a particle group or a powder/particle material is sealed between a transparent substrate and a counter substrate, and an electric field is given to a particle group or a powder/particle material to move particles or a powder/particle material and hence display an image, and which has at least one image display element separated by partitions from each other, the method comprising the steps of forming a partition on one substrate out of the transparent substrate and the counter substrate, filling a particle group or a powder/particle material into a space constituting an image display element separated by a partition, removing unnecessary particle group or powder/particle material left on a partition, screen-printing an adhesive in a position, facing a partition, on the surface of the other substrate out of the transparent substrate and the counter substrate, and joining a partition with the other substrate via an adhesive to thereby obtain an image display panel (first embodiment of a second invention).

Description

Manufacturing method, and an image display apparatus art of bright fine check image display device

The present invention is intended to the manufacturing method of an image display apparatus including moving the accompanied picture image repeating image display of flight movement or the liquid powders of particles using electrostatic force, the image display panel can be erased.

BACKGROUND

As an image display device in place of the liquid crystal (LCD), an electrophoretic method, elect port chromic method, mono- circle method, an image display device using a technique such as two-color particles rotating system (Display) has been proposed. These image display apparatus, as compared with LCD, a wide viewing angle close to normal printed matter is obtained, the power consumption is small, the benefit of such having memory functions, considered as an inexpensive display device of the next generation It is, display for a portable terminal, expansion of the e-Paix over path first class is expected.

Recently, the dispersion comprising up with dispersion particles and coloration solution and microcapsules I spoon, which electrophoretic be placed between the substrates to be paired direction has been proposed. However, in the electrophoresis kinematic scheme, there is a problem that the response speed is slow due to the viscosity resistance of the liquid to migrate particles in the liquid. Also, because they are dispersed high specific gravity particles such as Sani匕 titanium in a solution of low specific gravity, easy sedimentation, it is difficult to maintain stability of the dispersed state, the problem of lack of Shi image repeatedly stability I am having. Even if the microencapsulation, the cell size to the micro force Puserureberu, apparently, only this disadvantage is unlikely to appear, essential problem is not solved at all.

To a solution electrophoresis method using behavior in the above, the solution without using the conductive particles and a charge transport layer has been proposed scheme incorporated into a portion of the substrate (for example, Zhao country come, and three others, "new toner one display device (I)", 1 9 9 9 July 2, one day, the Imaging Society of Japan annual conference (total 8 3 times) "Japan Hardcopy '99", p. 249 -252). This method, the charge transport layer, further, with the structure for arranging the charge generation layer becomes complicated, a problem that the charge from the conductive particles be released to the constant difficult lack of stability.

To solve the above problems, fast response speed in a dry, simple structure, One or inexpensive, as an image display apparatus excellent in stability, between the transparent substrate and the counter substrate, different Iro及 beauty charging characteristics the two types of particles or the liquid powders sealed, giving an electric field to the particles or the liquid powders from the electrodes of the two types of different potentials, and displays an image by moving the particles or liquid powders, which is isolated from each other by partition walls dry the image display apparatus is known comprising one or more lifting one image display panel an image display device. In the image display apparatus forms an image display device by arranging the partition wall between the transparent substrate and the counter substrate.

<Challenges of the first aspect of the present invention>

However, the production method in that the dry has not been established in general, in particular enclosing an important Bointo a is particles or liquid powders, evenly and uniformly within a plurality of display cells separated by partition walls on a substrate approach to has not been almost built. That is, as shown in FIG. 1 1, between the substrate (not shown) with the substrate 1 0 1, the lattice-like partition walls 1 0 4 provided on the substrate 1 0 1, a plurality of display cells of the matrix array 1 1 0 forming a, and you'll encapsulating particles or the liquid powders 1 0 3 in each display cell, there is a problem that remaining particles or the liquid powders 1 0 3 on the top portion of the partition wall 1 0 4. To solve this problem, usually, but not to remove the particles or the liquid powders deposited on the partition wall, it has the following problems.

1. Conventionally it is necessary particles or liquid powders removal step after filling.

2. When particles or the liquid powders removed insufficient particles or the liquid powders are left on the partition wall, when the bonding of the opposing substrate, overlapping seam between the substrate and the partition wall, or superposition of septal wall between eye resulting gaps would be One sandwiched particles or the liquid powders in. Therefore the division between display cell becomes poor, overflows from the particles or the liquid powders is displayed cells, generating serious defect in display.

3. When performing two more than enough particles or the liquid powders removed to prevent the even failure occurs to remove particles or the liquid powders in a display cell, missing dots Bok, causing missing lines

<Challenge of the second aspect of the invention>

In the image display apparatus of the above configuration, the conventional arrangement of the partition wall, after placing in position the partition wall between the transparent substrate and the counter substrate, performed by applying the sealant at the corners of the substrate and the partition wall which was. Therefore, when the bonding between the substrate and the partition wall, when using a glass substrate as the transparent substrate and the opposed base plate even if there is sufficient strength, the use of such other transparent resins, sufficient bonding strength can give It is not a problem. Therefore, it was not possible to completely eliminate the flow of particles or liquid powders.

Disclosure of the Invention

The purpose of the first aspect of the invention is to eliminate the problems described above, it is possible to eliminate the particles or the liquid powders remain on the partition wall, it is possible to prevent failure of the display element caused by residual particles or the liquid powders image it is intended to'll provide a manufacturing method and an image display device of the display device.

The object of the second aspect of the invention is to eliminate the problems described above, fast response speed in a dry, simple structure, low cost and Te manufacturing method smell of the image display apparatus excellent in stability, and further the partition wall bonding strength between the substrate can be kept high, production of an image display apparatus according to the first aspect of the particles or the liquid powders is present invention is intended to be'll provide a method for producing it with no image display apparatus out to the outside the method is to encapsulate the particles or the liquid powders between the substrates to two opposite at least one of which is transparent, for displaying an image by by generating an electric field to move the particles or the liquid powders between the substrates, barrier ribs in the manufacturing method of an image display device consisting in-delimited plurality of display cells, when encapsulating the particles or the liquid powders in delimited in the cell at intervals wall between substrates, placing the mask on the upper surface of the partition walls And it is characterized in and.

In the first aspect of the present invention, when the particles or the liquid powders filling into the display cell formed by the partition wall on the substrate -. The same mask and barrier rib pattern by installing on the partition wall, the particles or the liquid powders it is possible to prevent the deposition on the partition wall. More on this, it is possible to remove the particles or the liquid powders remaining on the partition wall, it is possible to prevent failure of the display element caused by residual particles or liquid powders. Preferred examples of the first aspect of the present invention, constitutes a mask placed on the upper surface of the partition walls of a magnetic material, fixed to the bulkhead upper surface of the mask by a magnetic force from the substrate backside, Rukoto brought into close contact, the opening of the mask is displayed a 3 0-1 50% with respect to the projection area of ​​the cell, that the line width of the mask is 1 0-5 0 0% to the line width of the partition wall, the material of the mask, a metal, alloy, metal oxide, a polymer resin or it is a mixture thereof, the average particle diameter of the particles is 0. l~5 0 m, the surface charge density of the particles in the absolute value of 5~1 5 0 CZm 2 in the range, the volume occupancy rate of the particles is filled between the substrates is in the range of 5 to 7 O vol%, there is. In any case it is possible to more suitably implement the present invention. In particular, a mask was placed on the upper surface of the partition walls or we constructed a magnetic material, to the partition wall upper surface of the mask by a magnetic force from the substrate rear mount, when brought into close contact, to further improve the positioning and fixing with respect to the partition wall upper surface of the mask the preferred since it is. Substrate having cells separated by partition walls, when the electrode-Ru substrate Dare, good preferable because filling of the particles or the cells of the liquid powders better performed. When an electrode-attached substrate, a further reason that allows the filling of the preferred particles or the liquid powders is not clear, it is considered that conductive with the electrode attached to the substrate is involved.

Second aspect of the present invention a method of manufacturing an image display device according to the First Embodiment, the particle groups or the liquid powders sealed between the transparent substrate and the counter substrate, the particles giving an electric field to the particles or the liquid powders or the liquid powders is moved to display an image, a manufacturing method of an image display apparatus including an image display panel having one or more image display elements which are separated from each other by partition walls, the transparent substrate and the counter forming a partition wall on one substrate out of the substrate, the particles or the liquid powders filled in a space that constitutes an image display device which is isolated by a partition wall, to remove unwanted particles or liquid powders remaining on the partition wall, of the transparent substrate and the other surface of the substrate of the counter substrate, the adhesive at a position facing the partition wall and screen printing, and a partition wall and the other substrate was bonded through an adhesive to give the image display panel It features a call It is intended to.

The manufacturing method of an image display apparatus according to the second aspect of the present invention (second embodiment) of the present invention is to encapsulate particles or liquid powders between the transparency substrate and the counter substrate, the electric field to particles or liquid powders given to display an image by moving the particles or the liquid powders and, an image display equipment manufacturing method including an image display panel having one or more image display elements which are separated from each other by partition walls, the transparent substrate and it forms the shape of the partition wall on one substrate of the opposing substrate, while leaving the particles or the liquid powders to the tip of the partition wall, filling the particles or the liquid powders in a space that constitutes an image display device which is isolated by a partition wall and, wherein the transparent substrate and the other surface of the substrate of the counter substrate, partition walls and the adhesive screen printed facing position, partition walls and the other substrate and ZanTsuta particles or powder to the tip of the adhesive and partition walls via a flow body Bonding to, it is characterized in that to obtain an image display panel. Furthermore, a method of manufacturing an image display device according to the second aspect of the present invention (third embodiment) of the present invention, the particles or the liquid powders sealed between the transparent substrate and the counter substrate, giving an electric field to the particles or the liquid powders displaying an image by moving the particles or the liquid powders Te, a manufacturing method of an image display apparatus including an image display panel having one or more image display elements that are isolated from each other by a partition, said transparent substrate and forming a partition wall on one substrate of the counter substrate, the adhesive was screen-printed on the tip of the partition wall, the particles a screen printing adhesive Hankati匕Shi, the space constituting the image display device which is isolated by a partition wall filled with the group or the liquid powders, to remove unwanted particles or Konaryu body remaining on the semi-cured adhesive on the partition wall, the partition wall in a semi-cured and the other substrate out of the transparent substrate and the counter substrate adhesive Through bonded, in the second aspect of the present invention what is that particles or liquid powders, characterized in that to obtain an image display panel (first to third embodiments), the septum wall and the substrate when using an adhesive for bonding, by performing the application of the adhesive in the subscription Ichin printing, only between the bulkhead and the substrate can be coated with the adhesive, the display surface of the base plate an adhesive can eliminate the deterioration of the element characteristics caused by applying the, it does not give adverse effect on the display characteristics. In the second embodiment of the second invention, in addition to the common function and effect, by performing the bonding process, leaving the particles or the liquid powders on the partition walls, the gas generated during the adhesive curing image it can be prevented to become sealed inside the display device under pressure. Furthermore, in the third embodiment of the second invention, in addition to the common operational effects, an adhesive screen printing after the adhesive by eliminating the adhesive is semi-cured, adhesive after conventional screen printing fluid had occurred because there was the removal of particles or liquid powders on the screen after printing of the particles or the liquid powders in sealed or septum can solve the problem that can not be, encapsulation of the particles or the liquid powders to the image display device and on the partition wall can allow the removal of the particles or the liquid powders.

As a preferred embodiment of the second aspect of the present invention using particles (first to third embodiments), the average particle diameter of the particles is 0. 1 to 5 0 m, using the same Kiyarya two types of particles, as determined from blanking opening one-off method, the absolute value of the difference between the surface charge density is 5 C Zm 2 ~l 5 0 Roh m 2, particles, the distance between the surface and 1 mm in connexion arranged corona discharger, when applying a voltage of 8 KV to charge the surface by generating corona discharge, 0. the maximum value of the surface potential after 3 seconds Ri by 3 0 0 V it is large particles, and, that the color of the particles are white and black, there is. In any case it is possible to implement the method of manufacturing an image display device of the present invention more favorably.

As a preferred embodiment of the second aspect of the present invention utilizing a liquid powder (first to third embodiments), it apparent volume in the maximum floating in the liquid powders is 2 times or more when not floating, flour that the time change of the apparent volume of the fluid is one that satisfies the following equation, V 1 () / V 5 > 0. 8,

(Note, V 5 is the apparent volume of 5 minutes after the liquid powder from the maximum floating (cm 3), V 10 indicates the apparent volume of 10 minutes after the liquid powder from the maximum floating (cm 3).), And , average particle size d of a particle material constituting the liquid powders (0.5) is 0. l~20 ^ m, there is. Method of manufacturing an image display device also present invention each case can be more suitably real Hodokosuru the.

Further, as a preferred example which is common to the first to third embodiments of the second aspect of the present invention, after the partition wall and the other substrate was fixed via an adhesive between the transparent substrate and the counter substrate a sealing agent is applied to the outermost peripheral portion of the substrate in order to the atmosphere uniform, sometimes modularized by connecting the circuit with the electrodes for displaying an image. In this case, not preferred because it can be modularized to circuitry used to display the images.

Further, the image display apparatus of the present invention will become characterized be manufactured according to the manufacturing method of the above-described image display device.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 (a) ~ (c) is a diagram showing an example of the configuration and the display driving principle of the image display panel image display device constituting the image display apparatus of the present invention, respectively.

Figure 2 is a diagram showing an example of the first invention filling method of the particles or the liquid powders in the manufacturing method of the image display apparatus according to the present invention.

Figure 3 is a diagram showing another example of the first invention filling method of the particles or the liquid powders in the manufacturing method of the image display apparatus according to the present invention.

Figure 4 is a diagram showing the septum and mask of a shape formed on a substrate used in the examples according to the first aspect of the present invention.

Figure 5 is a diagram for explaining the manner of screen printing in the second aspect of the present invention.

FIG. 6 (a), a diagram for explaining an example of a screen printing adhesive in the second invention of (b) the present invention, respectively.

Figure 7 (a) ~ (c) are views for explaining an example of a method of manufacturing an image Display apparatus according to the second aspect of the present invention (first embodiment) of the present invention, respectively.

Figure 8 (a) ~ (c) are views for explaining an example of a method of manufacturing an image Display apparatus according to the second aspect of the present invention (second embodiment) of the present invention, respectively.

Figure 9 (a) ~ (d) are diagrams for explaining an example of the second invention method of manufacturing an image Display apparatus according to Third Embodiment of the present invention, respectively.

Figure 10 is a diagram for explaining an example of a measuring device for the surface potential measurement of the particles in the second invention of the present invention.

Figure 11 is a diagram showing an example of filling how the particles or the liquid powders in the manufacturing method of the conventional image display device.

BEST MODE FOR CARRYING OUT THE INVENTION

Figure 1 (a) ~ (c) is a diagram showing an example of the configuration and the display driving principle of the image display panel image display device constituting the image display apparatus of the present invention, respectively. In the example shown in FIG. 1) ~ (c), the transparent substrate 1, the counter substrate 2, the display electrodes 3, counter electrode 4, 5 negatively charged particles (or liquid powders), 6 positively chargeable particles (or the liquid powders), 7 is a partition wall.

In the example shown in FIG. 1 (a), the solid matter, while negatively charged particles 5 and positive charged particles 6 (or gas between the opposing substrate (transparent substrate 1 and counter substrate 2) is stabilized as a dispersoid a state of arranging the negatively chargeable liquid powders 5 and the positively chargeable liquid powders 6) showing a high fluidity in an aerosol state suspended in shown. Those of the state, the display electrode 3 is low potential, the 4-side counter electrode for applying a voltage to a higher potential, as shown in FIG. 1 (b), by the Coulomb force, the positively charged particles (or liquid powders ) 6 is moved to the display electrode 3, the negatively charged particles (or liquid powders) 5 is moved to the 4 side counter electrode. In this case, the display surface viewed from transparency substrate 1 side appear the color of the positively charged particles (or liquid powders) 6. In the following, by switching the potential, the display electrode 3 is a high potential, the 4-side counter electrode to apply a by Uni voltage as a low potential, as shown in FIG. 1 (c), by the Coulomb force, negatively charged particles (or the liquid powders) 5 to move to the display electrode 3, positively chargeable particles (or Konaryu body) 6 is moved to the 4 side counter electrode. In this case, the display surface viewed from the transparent substrate 1 side looks negatively charged particles (or liquid powders) 6 colors. .

During shown in FIG. 1 (b) and FIG. 1 (c) can be displayed repeatedly by simply reversing the power supply potential, by inverting this way the power supply potential and the this changing reversibly color it can. The color of the particles or liquid powders can be chosen at will. For example, negatively charged particles (or liquid powders) 5 as a white, or positively charged particles (or liquid powders) 6 and black, negatively charged particles (or liquid powders) 5 and black positively charged particles (or liquid powders) when the 6 white display is reversible display between white and black. In this method. Since the particles or the liquid powders is in a state stuck by image force once the substrate, a display image after the power is turned off is held in long-term, memory retention is good.

In the present invention, the charged particles (or liquid powders) is to move in the gas, the response speed of the image display is fast, it is possible to make the response speed below Lmsec. Moreover, unnecessary oriented film or a polarizing plate or the like as a liquid crystal display device, the structure is simple, it is possible to lower cost and large-area product. Stable against temperature change can be used from a low temperature to a high temperature. Furthermore, there is no viewing angle, high reflectivity, easy to see even in a bright place in the reflection type, low power consumption. There is also memory and do not consume power when the image holding.

Hereinafter, a description will be given of a first invention and second invention of the present invention in order.

<Description of the first aspect of the present invention>

Figure 2 is a diagram of the order to explain an example in the manufacturing method of the image display apparatus according to a first aspect of the present invention. 2, the lattice-shaped partition wall 1 4 provided on the substrate 1 1 between two opposed substrates, to form a plurality of display cells 2 0 of the matrix array, the particles or the liquid powders in each display cell 2 0 encapsulating with a free-falling method 1 3 from the particles or the liquid powders spraying device 2 1. At that time, features of the first aspect of the present invention is that installing the mask 2 2 on the upper surface of the partition wall 1 4. Installation with respect to the upper surface of the mask 2 the second partition 1 4., Just merely can be placed to position, after use when placing and positioning can also be carried out temporarily fixed by an adhesive to simply peel off easy .

Mask 2 2 has a substantially corresponding aperture 2 2 a to the opening of the display cell 2 0. Opening 2 2 a of the mask 2 2, display cells 2 0 of the projected area is preferably 3 0-1 50% for the (same as the area of ​​the opening), the mask 2 2 linewidth 2 2 b is preferably 1. 0-5 0 0% line width of the partition wall 1 4. Further, more preferably the openings 2 2 a is a 5 0-1 2 0% projected area of ​​the display cells 2 0, line width 2 2 b 5 0 to the line width of the partition wall 1 4 3 it is not still more preferably 0 is 0%. Further, for the material of the mask 2 2, but can also be used a material such as etc. If there is ease of processing and constant intensity, metals, alloys, metal oxides, polymer resin, Or, mixtures thereof it is preferable to use. The processing of the opening 2 2 a mask 2 2 can be etching, by an additive method or the like.

In the example shown in FIG. 2, since the mask 2 2 exists on the upper surface of the partition wall 1 4, enclosed by a free-fall method each display cell 2 0 particles or liquid powders 1 to 3 particles or the liquid powders spraying device 2 1 to time, the particles or the liquid powders 1 3 remaining drops onto mask 2 2, after the encapsulation is complete, by removing the mask 2 2, to the upper surface of the septum wall 1 4 particles or the liquid powders 1 3 the residual will not.

Figure 3 is a diagram for explaining another example of the method for manufacturing an image display apparatus according to a first aspect of the present invention. In the example shown in FIG. 3 are denoted by the same reference numerals to the same members as the example shown in FIG. 2, the description thereof is omitted. In the example shown in FIG. 3 differs from the example shown in Figure 2, along with constituting the mask 2 2 of a magnetic material, a magnet 2 3 provided on the rear surface of the substrate 1 1, the mask 2 2 by the magnetic force from the substrate rear surface fixed to the upper surface of the partition wall 1 4, in that is brought into close contact.

In the example shown in FIG. 3, because with respect to the upper surface of the partition wall 1 4 tightly fixed by positioning the mask 2 2 can be brought into close contact, as compared to the example shown in FIG. 2, can reduce the deviation of the mask 2 2 the more effectively the residual to the particles or the liquid powders 1 3 of the partition wall 1 4 of the upper surface can proof Gukoto.

<Description of the second aspect of the invention>

Characterized in the method of manufacturing the image display apparatus according to the second aspect of the present invention, in producing an image display device shown in FIG. 1 of the configuration described above, formed to the partition wall 7 and the transparent substrate 1 or the opposing substrate an image display device It lies in an improvement of the method of joining the 2.

First, it describes the screen printing Nitsu of adhesive in a method of manufacturing an image display device of the present invention. Screen printing itself is the same as a conventionally known method. That is, as an example of which is shown in FIG. 5, the substrate to be printed adhesive, wherein the transparent substrate 1, was placed on the base 3 1 As an example, stainless mesh capable of printing the barrier rib pattern, polystyrene mesh through the plate making 3 2 consisting of such scraper -3 3 such that the push from above the adhesive 3 4 utilizing, for applying transfer adhesive 3 4 on the transparent substrate 1.

This was prepared as shown in FIG. 6 (a), with respect to the counter substrate 2 and the transparent substrate 1 in which the pre-partition wall 7 provided, as shown in FIG. 7 (b), the partition wall 7 of the surface of the transparent substrate 1 the adhesive 3 4 can be screen printed on the opposite positions. If in this example, it has been subscription Ichin print adhesive onto the transparency substrate 1, if the pre-partition 7 on the transparent substrate 1 is provided to a screen printing adhesive 3 4 on the counter substrate 2, also , even if the screen printing of an adhesive 3 4 to the distal end of the partition 7, as well as subscription to the example described above - can be performed screen printing.

Next, the feature of the second aspect of the present invention will be described bonding method of the image display panel using the screen printing described above.

(1) A first embodiment of the second invention using the particles:

Figure 7 (a) ~ (c) are views for explaining an example of a method of manufacturing an image Display apparatus according to the second aspect of the present invention (first embodiment) of the present invention, respectively. First, sea urchin by shown in FIG. 7 (a), one substrate of the transparent substrate 1 and the opposing substrate 2, where the partition wall 7 is formed in a pattern of the transparent substrate 1, to a Jo Tokoro, which is separated by the partition wall 7 image a space to configure the display element 4 1 is charged with particles 4 2 consisting of different black particles 4 2 B and the white particles 4 2 W electrification characteristics. As a method of filling the particles 4 2, using gravity, a method of spraying the gas stream particles 4 2 by utilizing the counter substrate 2, a method and of flying particles 4 2 by using charged be able to. Then, to remove the remaining unwanted particles 4 2 over the partition 7, to prepare the particles prelubricated substrate shown in Figure 7 (a). As a method for removing the particle element group 4 2 removal method using an adhesive port Ichiru - method divided by electrical force or, using the air flow, or the like is used removal method to blow the unnecessary ± element group 4 2 be able to.

Next, as shown in FIG. 7 (b), the other substrate of the transparent substrate 1 and the opposing substrate 2, the adhesive 3 4 SCREEN printing surface of the counter substrate 2, at a position facing the partition 7 wherein to. Then, as shown in FIG. 7 (c), the partition wall 7 and the other substrate, wherein the bonded through an adhesive 3 4 and a counter substrate 2. Then, it is possible to glue 3 4 in the child cured to obtain an image display panel.

According to this embodiment, when the Ru using adhesive 3 4 for bonding the partition wall 7 and the opposing substrate 2, by performing the application of the adhesive 3 4 by screen printing, the partition wall 7 and the counter substrate 2 only the adhesive 3 4 can be applied between the adhesive 3 4 can eliminate the deterioration of the element characteristics caused by applying the display surface of the substrate, it does not adversely affect the display characteristics.

(2) A second embodiment of the second invention using the particles:

Figure 8 (a) ~ (c) are views for explaining an example of a method of manufacturing an image Display apparatus according to the second aspect of the present invention (second embodiment) of the present invention, respectively. First, sea urchin by shown in FIG. 8 (a), one substrate of the transparent substrate 1 and the opposing substrate 2, where the partition wall 7 is formed in a pattern of the transparent substrate 1, to a Jo Tokoro, which is separated by the partition wall 7 image a space to configure the display element 4 1 is charged with particles 4 2 consisting of different black particles 4 2 B and the white particles 4 2 W electrification characteristics. Then, while leaving the remaining particles 4 2 over the partition 7, to prepare the particles prelubricated substrate placed the particles 4 2 over the partition 7 shown in FIG. 8 (a).

Next, as shown in FIG. 8 (b), the other substrate of the transparent substrate 1 and the opposing substrate 2, the adhesive 3 4 SCREEN printing surface of the counter substrate 2, at a position facing the partition 7 wherein to. Then, as shown in FIG. 8 (c), the partition wall 7 and the other substrate, wherein the bonded together with an adhesive 3 4 and particles 4 2 and a counter substrate 2. After that, the adhesive 3 4 cures, it is possible to obtain an image display panel.

According to this embodiment, like the first embodiment, when using an adhesive 3 4 in order was the junction between the partition wall 7 and the opposing substrate 2, by performing the application of the adhesive 3 4 by screen printing, only between the partition wall 7 and the counter substrate 2 and adhesive 3 4 can be applied to the adhesive 3 4 can eliminate the deterioration of the element characteristics caused by applying the display surface of the substrate, an adverse effect on the display properties never give. Further, in this embodiment, in addition to the common operational effects, the particles 4 2 by performing the bonding process, leaving on the partition wall 7, the gas generated during the adhesive curing inside the image display device it is possible to prevent the encapsulated becomes a pressurized state.

(3) A third embodiment of the second invention using the particles:

Figure 9 (a) ~ (d) are diagrams for explaining an example of the second invention method of manufacturing an image Display apparatus according to Third Embodiment of the present invention, respectively. First, I urchin shown in FIG. 9 (a), one substrate of the transparent substrate 1 and the opposing substrate 2, wherein forming the barrier rib 7 in Jo Tokoro pattern in the transparent substrate 1, the adhesive at the tip of the partition wall 7 3 4 screen printing. Next, as shown in FIG. 9 (b), causing the semi-cured adhesive 3 4 provided at the tip of the partition wall 7. The adhesive 3 4 liquid that is semi-cured, but the adhesive 3 4 detackify has sufficient tackiness to fix the substrate. Here, half Kati匕 of adhesive 3 4 can be carried out by adding according to the properties to the adhesive 3 4 ultraviolet (UV) or heat for a predetermined time.

Next, as shown in FIG. 9 (c), the space constituting the image display element 4 1 which is isolated by a partition 7, and a 4 2 W different black particles 4 2 B and the white particles having charging characteristics with each other filling the particles 4 2 made. Then, to remove the remaining unwanted particles 4 2 over the partition 7, to prepare the particles prelubricated substrate shown in FIG. 9 (c). And .. partition wall 7 and the other substrate as shown in FIG. 9 (d), where bonded together with an adhesive 3 4 and a counter substrate 2. After that, the adhesive 3 4 cures, it is possible to obtain an image display panel.

According to this embodiment, like the first embodiment, when using an adhesive 3 4 in order was the junction between the partition wall 7 and the opposing substrate 2, by performing the application of the adhesive 3 4 by screen printing, only between the partition wall 7 and the counter substrate 2 of the adhesive 1 4 can be applied to, the adhesive 1 4 can eliminate the deterioration of the element characteristics caused by applying the display surface of the substrate, an adverse effect on the display properties never give. Further, in this embodiment, in addition to the common operational effects, an adhesive screen printing after the adhesive by eliminating the adhesive is semi-cured, adhesive after conventional screen printing have occurred because they were fluid and can solve the problem of being unable to remove the particles on the encapsulation and the partition walls of the particle group after screen printing, it is possible to allow the removal of particles on the particle group of inclusion and the partition wall to the image display device . In the present invention, after in the manner described above the partition wall and the other substrate is fixed through an adhesive, the outermost peripheral portion of the substrate to a uniform atmosphere between the transparent substrate 1 and the opposing substrate 2 a sealing agent is applied, the image can also be modular Yule by being connected to the electrode circuitry for displaying. In this case, preferably possible to the circuit until in modularization is used to display images.

Although the method for manufacturing an image display device utilizing the particles according to the second aspect of the present invention has been described by the first to third embodiments, the manufacturing method of the image Display apparatus using the liquid powders according to the second aspect of the present invention in can also be prepared simply replacing the particles in the liquid powders, the Supporting connexion image display apparatus similarly to the first to third embodiments.

<Description of intersection of the first and second aspects of the present invention>

Hereinafter, each component of the image display apparatus of the present invention, particles, liquid powders, the order of the first shot Ming and common components to the second invention will be described in detail. It will be described first particles.

Particles used for display in the image display apparatus of the present invention is a negative or positive charge of the coloring $ Ritsuko group may be either as long as it flies moved by the Coulomb force, in particular, small specific gravity spherical it is preferred particles. Particles are of a single color, particles of white color or black is preferably used. . The average particle diameter of the particle group 0. 1 to 5 0 m are preferred, particularly:!. ~ 3 0 m is preferable. The average image force is too strong the particle size to the range smaller than the electrode and the substrate charge density is too large particles, following ability when memory one property obtained by inverting the good bur, the electric field becomes worse. When the average particle diameter in the opposite larger than this range, but follow-up property good, memory is deteriorated.

The method for charging the particles negatively or positively is not particularly limited, a corona discharge method, electrodes injection method, a method for charging the particles of the friction method and the like. Depends on the measurement conditions naturally charge amount of the particles their charge amount of the particles in the image display apparatus almost the initial charge amount, contact with the substrate, contact with different particles, a charge decay due to an elapsed time dependent, it has been found that particularly "contact with different particles", that is, the saturation value of the charging behavior dynamic due to the contact between two particles has a dominant factor. Therefore, the difference in charging characteristic between the two particles in a static-amount, that it is important to know the difference in work function, which is difficult with simple measurement.

The present inventors have conducted extensive studies results, using the same Kiyarya in professional one-off process, found to be able to relatively evaluated by performing charge amount measurement of each particle, which by defining the surface charge density found to be able to predict the charge amount of the appropriate particle as an image display device.

Measurement method is more details will be described later, can be by the blow-off method, it was sufficiently contacted with particles and Kiyarya particles child, to measure the charge amount per unit weight of the particles by measuring the saturated charge amount. Then, it is possible to calculate the surface charge density of the particles by obtaining separate the particles of the particle size and specific gravity.

In the image display device, small particle size of the particles used, because the influence of gravity is small enough to be almost ignored, the specific gravity of the particles do not impact on the movement of the particles. However, it in charge of the particles, be an average charge amount per unit weight of particles of the same particle diameter are the same, the charge amount to be held when the specific gravity of the particles is twice differs from twice differs this and . Accordingly, charging characteristics unrelated surface charge density on the specific gravity of the particles of the particles used in the image display device (unit: ii C / m 2) was divide that it is preferable to evaluate at.

When the difference between the surface charge density between the particles is sufficient, the two particles retain the different polarities of the charge amount by the contact with each other, it is to retain the ability to move by an electric field.

Here, the surface charge density requires a certain difference in order to be different the charge polarity of the 2 particles, not that preferably larger. A strong tendency to predominantly electric imaging force when the particle size is large particles become factors for determining the flying electric field of the particles (voltage) in the image display apparatus according to particle movement, the particles in a low electric field (voltage) for dynamic dregs becomes possible better low charge amount. Further, since when the particle diameter of the particles is small, and this non-electrical forces such as intermolecular force, liquid cross-linking force is flying electric field (voltage) determinant is large, moves the particles at a low electric field (voltage) and thus better high charge amount for. However, this can not be defined by categorically a particle diameter charge since it depends largely on the surface of the particles (material 'shape).

The present inventors have average particle size of 0. In. 1 to 5 0 m particles, two types of particles was determined by blow-off method using the same Kiyarya, the absolute value of the difference between the surface charge density 5-1 5 It found that to obtain Ri particles and formed to be used as an image display device in the case of O i CZm 2.

Blow-off measuring principles and methods are as follows. In blow-off method, put a mixture of powder and Kiyarya in a cylindrical vessel stretched a net across, the powder and Kiyarya separated by blowing a high pressure gas from one end, only the powder from mesh network the Buroo marks (blowing). At this time, powder strip coulometric opposite in charge amount and an equal volume was taken away out of the vessel remains in Kiyarya. Then, all of electric flux by this electric charge is collected in a Faraday cage, a capacitor one only this amount is charged. Therefore the charge amount Q of the powder by measuring the potential of the capacitor both ends, Q = CV is determined as (C:: Condenser capacity, V capacitor one voltage across).

As a professional one off powder charge measuring apparatus was used TB-200 manufactured by Toshiba Chemical Corporation. Using F963-2535 of Powder Tech Co., Ltd. as Kiyarya the present invention, each unit surface area per charge density in the case of (Unit: n C / m 2) was measured.

Because the particles must retain their charge, volume resistivity is preferably 1 X 10 10 Ω · cm or more insulating particles, especially 1 X 10 12 Ω · cm or more absolute緣性particles are preferred.

Further, particles in the image display apparatus of the present invention, further preferably slow particles evaluated conductive load damping by the following method. That is, the particles, separately, the press, heated and melted, and the like casting, and the thickness 5 to 100 m range of the film, the corona discharger disposed at a distance of the fill arm surface and lmm, a voltage of 8 KV It applied to generate a corona discharge to charge the surface, to determine by measuring the change in the surface potential. In this case, the maximum value of the surface potential after 0.3 seconds is greater than 300 V, preferably such that greater than 400V, select particles constituting material, it is desirable to prepare.

The measurement of the surface potential can be performed by, for example, the apparatus shown in FIG. 10 (QEA Inc. CRT 2000). For this device, the roll shaft end portions of the film described above was placed on the front surface and held by the chuck 51, the measurement was features and Sukoroto Ron discharger 52 and surface potential meter 53 small by a predetermined distance apart Yuni' Bok face disposed at an interval on the surface and lmm above SL film, remain stationary above the roll shaft, by moving at a constant speed the measurement unit from one end to the other end of the roll shaft, the surface methods for measuring the surface potential is preferably employed while applying charges. The measurement environment temperature 25 ± 3T, humidity 55 ± 5R H%.

If the particles in the image display apparatus of the present invention satisfy the properties such as charging performance, it may be composed of Izu Re of the material. For example, resin, charge control agents, coloring agents, inorganic additives and the like, or formed with a colorant alone like.

Typical examples of the resin include urethane resin, Urea resins, acrylic resins, polyester resins, acrylic urethane 榭脂, Akuriruure evening Nshiriko Ichin resin .. Akuriruure Tanfu' fluororesin, acryl fluorocarbon resin, silicone resin, acryl silicone resins, epoxy resins , polystyrene resins, styrene-acrylic resins, polyolefin resins, butyral Ichiru resin, vinylidene chloride resin, melamine resin, phenol resin, fluorine resin, polycarbonate resin, polysulfone resin, polyether resin, and polyamide resins. a particular substrate from the top to control the adhesive force, Akuri Ruuretan resin, acryl silicone resin, acryl fluorocarbon resin, Akuriruure Tan silicone resin, acryl urethane fluorocarbon resin, fluorocarbon resin, silicone Tree butter is a suitable. It is also possible to mix two or more.

As the charge control agent is not particularly limited, negative charge control agent such as salicyl acid metal complex, metal containing § zone dyes, oil-soluble dyes of the metal-containing (containing a metal ion or metal atom), quaternary Anmoniumu salt compound, the force helix allene compound, containing boronated compounds (boron benzyl acid complex), and nitroimidazole derivative. Examples of the positive charge control agent, Nigg port Shin dyes, triphenylmethane-based compounds, quaternary Anmoniumu salt compound, polyamine resin, imidazole derivatives, and Ru the like. Other, ultrafine silica, titanium oxide ultrafine particles, metal oxides such as ultra-fine particles of alumina, nitrogen-containing cyclic compounds and derivatives thereof and salts such as pyridine, various organic pigments, fluoric, chlorine, also containing nitrogen such as a resin or the like It can also be used as a charge control agent. The colorant, below shown example, organic or inorganic various pigments of each color dye charges can be used.

Examples of black pigments include carbon black, copper oxide, manganese dioxide -. Anirinbu rack, activated.

As yellow pigments include chrome yellow, zinc yellow, cadmium Yellow, yellow iron oxide, minerals Le Fast Yellow, nickel titanium Yellow. Navel yellow one, Nafuto Le Yellow S, Hanzaiero G, Hanzaiero 1 0 G, Benzidine Yellow G , benzidine yellow GR, quinoline yellow one lake, permanent yellow one NCG, there is such as tartrazine lake.

The orange pigment include red chrome yellow, and the like molybdenum orange, permanent orange GTR, pyrazolone orange, vulcan orange, indanthrene brilliant O ovens RK :, Benzidine Orange G, Indanthrene Brilliant Orange GK.

Examples of red pigment include red iron oxide, cadmium red, red lead, mercury sulfide, force Domiu arm, Permanent Red 4 R, Risoruretsudo, Pirazoronretsudo, Wotchin Gureddo, calcium salt, lake red D, brilliant carmine 6 B, Eoshi Nreki, rhodamine lake B, Arizarinreki, there is such brilliant force one Min 3 B.

The purple pigments, manganese violet, fast violet B, and Mechirubaiore Tsu Bok rake.

The blue pigment, iron blue, cobalt blue, alkali Bull one lake, Bikutori Aburureki, Phthalocyanine Blue, full evening b Shianinburu partially chlorinated, Fast Sky Blue, Indus and the like Ren Bull one BC.

The green pigment, chrome green, chromium oxide, Pigment Green B, Ma Rakai Bok green lake, and the like Final Yellow Green G.

As the white pigment include zinc white, titanium oxide, antimony white, zinc sulfide.

Examples of extenders include baryta powder, barium carbonate, clay, silica, white force one carbon, talc, alumina white Bok.

Additionally, basic, acidic, dispersion, as various dyes such as direct dyes, Nigg port Singh, main Chirenburu one, rose bengal, quinoline Yellow, ultramarine blue, etc. force S Mel.

These colorants may be used alone or in combination.

Especially car pump rack as the black coloring agent, titanium oxide good preferable as a white colorant.

No particular limitation is imposed on production example of the particle, for example, kneading Z pulverization method and polymerization method can be used in conformity with the case of manufacturing the toner one electrophotography. The method for coating an inorganic or organic resin and a charge control agent to the surface of the powder pigment and the like are also used. Image display transparent spacing between the substrate 1 and the opposing substrate 2 in the apparatus of the present invention, particles can fly moves, but it can be maintained the contrast, typically 1 0-5 0 0 0 m, is preferred properly 3 0-5 0 0 It is adjusted to m.

Particle loading (volume occupancy), relative to the volume of space between the substrates, 5-7 0%, preferred properly is better to fill so that the volume occupied 5-6 0%.

Further, where repeated in order to further improve the durability, stability of tree fat constituting the particles, in particular, it is effective to manage the water absorption and a solvent insoluble rate.

Water absorption of the resin constituting the particles sealed between substrates, 3 wt% or less, it is particularly preferable to be 2 wt% or less. The measurement of water absorption was carried out AS TM D 5 7 0 to quasi Ji, measurement conditions are the 2 4 hours 2 3 ° C. '

For the solvent insoluble rate of the resin constituting the particles, the solvent insoluble rate of the particles represented by the following equation 50% or more, it is preferable to particularly 70% or more.

Solvent insoluble rate (%) = (B / A) X 100

(Where, A is shows the weight after immersion for 24 hours the solvent weight before immersion of the resin, B is a resin in a good solvent at 2 5 ° C)

This solvent insoluble rate is less than 50%, a bleed is generated on the particle surface during long-term storage, it becomes an obstacle to the movement of the particles affect the adhesion of the particles, which may lead to impaired supporting the image display durability .

As the solvent (good solvent) to be used in measuring the solvent insoluble rate is fluororesin in methyl E chill ketone, polyamide trees JI such as methanol in fact, methyl E chill ketone acrylic urethanes resin, toluene and the like, melamine acetone resin, isopropanol, etc., Toruen like are preferred in silicone 榭脂.

The particle is spherical, it is preferable that the particle size are uniform in uniform.

In the present invention, with respect to the particle size distribution of the particles, the particle size distribution represented by the following formula

The Span less than 5, and preferably less than 3.

Span = (d (0. 9) - d (0. 1)) / d (0. 5)

(However, d (0. 5) is greater than this 50% of the particles, the numerical values ​​represent the particle size of 50% less than this in zm, d (0. 1) ratio of less than this particles 10 numerical particle size expressed in m is%, d (0. 9) is smaller than this particle is a number representing the particle size is 90% m.)

By pay Span in the range of 5 or less, set the size of each particle, the movement is made possible uniform particle child.

Furthermore, the correlation of each particle, of the particles used, the ratio of particles having a minimum diameter with respect to d (0. 5) of particles having a maximum diameter d (0. 5) 5 0 or less, preferably 1 0 it is important to be lower than or equal to.

Even a particle size distribution Span though small, they move closer together different particles charging characteristics to each other, near the particle size of each other, it is preferable to so mutual particles can be easily moved, it There becomes this range.

Here, the particle diameter distribution and the particle diameter mentioned above can therefore be found of a laser diffraction Z scattering method. When irradiated with a laser beam to be measured particles spatially light intensity distribution pattern of the diffraction / scattering light occurs, since the light intensity Pa evening Ichin have a correspondence relationship between particle size, particle size Oyobi particle size distribution can be measured. Particle size and particle size distribution in the present invention, is obtained by a volume standard distribution. Specifically, Mas ters i zer2000 using (Malvern Ins t rument s Ltd.) measuring the particles were charged in a nitrogen stream, it was based on the volume-based distribution using analysis software (Mie theory accessory at software Bok), it can be measured particle size and particle size distribution.

Next, a description will be given liquid powders used in the present invention.

"Liquid powders" in the present invention, the force without utilizing gas force of the liquid and exhibiting a self-fluidity is an intermediate material between them that combines the properties of fluids and particles. For example, the liquid crystal is defined as an intermediate phase between a liquid and a solid, and has a anisotropy (optical property) showing a characteristic of fluidity and solid is characteristic of a liquid (Heibonsha: Encyclopedia ). On the other hand, the definition of the particles, even as large as negligible is an object having a finite mass, is and receives an attraction of gravity (Maruzen: Physics Encyclopedia). Here, even in the particles, gas-solid fluidized bed material, there are special states such as liquid-solid fluidized body, strike the flow of gas from the bottom plate to the particles, the particles upward force acts in response to the speed of the gas, when this force is mutually fishing gravity, what will become ready to easily flow as the fluid is called a gas-solid fluidized bed material, also, is the the state of being fluidized by the fluid is referred to as a liquid-solid fluid It is (mediocre Corporation: encyclopedia). Thus gas-solid fluidized bed material and solid fluidized body means a state that is utilizing the flow of gas or liquid. In the present invention, the force of such a gas also without utilizing the force of the liquid, the substance in the state shown a self-fluidity found to able to produce specific and defined this as the liquid powders.

That is, the liquid powders according to the present invention, the definition and the like of the liquid crystal (intermediate phase between a liquid and a solid), in intermediate state having both properties of the particles and the liquid, which is characteristic of the particles mentioned above gravity hardly influences very undergone, Ru substance der showing a specific state indicating high fluidity. Such materials aerosol state, i.e. solid or liquid material in gas can be obtained in a distributed system for stably floating as a dispersoid, the dispersoid the solid material in the image table 示用 panel of the present invention it is an. Image display panel to which the present invention, at least one is transparent, between opposing sheets, the liquid powders exhibiting high fluidity in air port sol state solid particles in the gas is stable floating as a dispersoid is intended to enclose, such liquid powders can be moved easily and stably by means of Coulomb's force in sign addition of low voltage.

The liquid powders, as previously described, the force without utilizing gas force of the liquid and exhibiting a self-fluidity is an intermediate material between them that combines the properties of fluids and particles. The Konaryu body, particularly an aerosol state, the image display panel of the present invention, solid materials are used in a state of relatively stable floating as a dispersoid in a gas. Range of the air inlet sol is preferably apparent volume in the maximum floating in the liquid powders is 2 times or more when not floating, more preferably 2. 5 times or more, particularly preferably 3 times or more. The upper limit is not particularly limited, is preferably 1 2 times or less. Control on the display and apparent volume in the maximum floating in the liquid powders is less than twice the time of non-floating becomes difficult and, thus over-tricks dance when enclosed in the apparatus 1 twice larger than the liquid powders handling of inconvenience, such as may occur. Incidentally, the apparent volume in the maximum floating is measured as follows. That is, it puts Konaryu body in a sealed vessel the liquid powders are seen through, and the container itself is vibrated or dropped, making the maximum floating state, to measure the apparent volume at that time from outside of the vessel. Specifically, the diameter (inner diameter) 6 cm, height 1 0 cm of polypropylene container with a lid: (trade name Aiboi Azuwan Co.), equivalent volume of 1 Z 5 as the liquid powders when not floating put the liquid powder, setting the vessel shaker is shaken 3 hours at 3 reciprocating / sec the distance 6 cm. The apparent volume just after stop shaking the apparent volume in the maximum floating.

Further, in the image display panel of the present invention, the time change of the apparent volume of the liquid powder preferably has the following expression is satisfied.

V lo / V 5> 0. 8

Here, V 5 indicates the apparent volume of 5 minutes after the maximum floating (cm 3), V 1 0 is the apparent volume of 1 0 minutes after the maximum floating (cm 3). Note that the image display panels of the present invention is preferably greater than the time variation V 1Q ZV 5 is 0.85 of the apparent volume of the liquid powder, greater than 0.9 is particularly preferred. If V 10 ZV 5 is 0.8 or less, it becomes similar to the case of using a conventional so-called particles, fast response, such as in the present invention, the effect of durability can not be secured.

The average particle size (d (0. 5)) of the particulate material constituting the liquid powders, preferably 0. 1 to 20 m, more preferably 0.. 5 to 15 m, particularly preferably from 0.9 to 8 a m. Control on the display and 0. 1 m smaller becomes difficult, and greater than 20 m, the display thinner contrast ratio decreases device that can do is difficult. The average particle size (d (0. 5)) of the particulate material constituting the liquid powder is the same as d (0. 5) in the next particle size distribution Span.

Particulate matter constituting the liquid powders is preferably the particle size distribution Span is less than 5 represented by the following formula, more preferably less than 3.

Here the particle size distribution Span = (d (0. 9) -d (0. 1)) / d (0. 5), d (0. 5) 50% of the particulate material constituting the liquid powders is from this large, numbers representing the particle size of 50% less than this numerical value represented by m, d (0. 1) has a particle diameter ratio of particulate material is 10% to configure this following liquid powder in m value, d (0. 9) the particle material constituting this following liquid powder is a number representing the particle size 90% by m. By the particle size distribution Span of the particulate material constituting the liquid powders and 5 or less, set the size, it is possible to uniform the liquid powders movement.

Incidentally, the particle diameter distribution and the particle diameter of the above can therefore be found from such a laser first diffraction Z scattering method. When the the measured liquid powders for irradiating a laser first light spatially light intensity distribution pattern of the diffraction Z scattered light is generated, the light intensity pattern from that there is a correspondence between the particle diameter, particle diameter Oyobi particle size distribution There can be measured. The particle size and particle size distribution are obtained by a volume standard distribution. Specifically, at Mastersizer2000 using (Malvern Instruments Ltd.) measuring, the liquid powders were charged in a nitrogen stream, (software Bok derived principally from volume-based distribution using Mie theory) Analysis software attached , it is possible to perform the measurement.

Preparation of liquid powders, the necessary resin, charge control agents, coloring agents, even if the kneading Rikona granulated other additives be polymerized from monomers, 榭脂 existing particles, charge control agents, coloring agents, it may be coated with other additives. Hereinafter, the resin constituting the liquid powders, charge control agents, coloring agents, exemplified other additives.

Examples of the resin -. Urethane resin ,, acrylic resins, polyester resins, urethanes modified acrylic resins, silicone resins, Nai port down resins, epoxy resins, styrene resins, butyral Ichiru resin, Piniriden chloride resin, melamine resin, Fueno Ichiru resins, fluorine resins. can also be a mixture of two or more, in particular, from the viewpoint of controlling the attaching force with the substrate, acryl urethane resin, acryl urethane silicone resin, acryl urethane fluorocarbon polymers, urethane resin, fluorocarbon resin is preferable. Examples of charge control agents, in the case of positive charge imparted, quaternary Anmoniumu salt compound, Nigg port Shin dyes, Bok riff enyl methane series compounds, such as imidazo Ichiru derivatives and the like, if negative charge applying the metal-containing § zone dyes, salicylic acid metal complexes, such as nitrate port imidazo Ichiru derivatives.

Examples of the coloring agent, a basic, include dyes acidic like, Nigg port Singh, methylene Nburu, quinoline yellow one, Rose Bengal and the like.

Examples of inorganic additives include titanium oxide, zinc white, zinc sulfide, antimony oxide, calcium carbonate, white lead, talc, silica, calcium Gay acid, alumina white DOO, cadmium Yellow, Cadmium Red, Cadmium Orange, Chitan'ie port one, Prussian blue, ultramarine blue, cobalt blue, cobalt green, cobalt violet

, Iron oxide, force first pump rack, manganese ferrite black, Kono Retoferai Bok black, copper powder, aluminum powder.

These coloring agents and inorganic additives may be used singly or a plurality. Especially carbon black as a black colorant, titanium oxide as a white colorant is preferred. However, such materials without the contrivance kneading, even such alms coating, it is impossible to produce a liquid powders showing an aerosol state. Without process is uncertain the preformatted liquid powders showing an aerosol state, illustrated as follows. First, the surface of the particle material constituting the liquid powder having an average particle size of 2 0 to 1 0 0 nm, and preferably from be affixed to 2 0 to 8 O nm inorganic particles. Further, it is appropriate that the inorganic fine particles of two or more particles. Furthermore, it is appropriate that the inorganic fine particles are treated with a silicone oil. Here, the inorganic fine particles, silicon dioxide (silica), zinc oxide, aluminum oxide, mug Neshiumu, cerium oxide, iron oxide, copper oxide, and the like. Important method of this inorganic particulate solid wear is, for example, eight Iburidiza one (Nara Kikai Seisakusho Co.) Ya mechanofusion (Hosokawa Micron Corporation) by using a, under the conditions alkylinylalkenyl constant ( for example, processing time), can be manufactured liquid powders showing an aerosol state.

In order to further improve the durability repeated here, stability of the resin constituting the liquid powders, especially, it is effective to manage the water absorption and a solvent insoluble rate. Water absorption 榭脂 constituting the liquid powders that seals enter between the sheets is 3 wt% or less, especially 2 wt% or less and to Rukoto preferred. The measurement of water absorption, ASTM- D 5 7 carried out according to 0, the measurement conditions are the 2 3 2 4 hours. Is relates solvent insoluble rate of the resin constituting the liquid powders, the solvent insoluble rate of the liquid powder represented by the following equation 50% or more, it is preferable to particularly 70% or more.

Solvent insoluble rate (%) = (B / A) X 1 0 0

(Where, A is a solvent before immersion weight of the resin, B denotes the weight after crushing immersion for 24 hours the resin with 2 5 ° C in a good solvent)

This solvent insoluble rate is less than 50%, occurred bleed the particle material surface during long-term storage, become an obstacle to the movement of the exerted liquid powders affect the adhesion to the liquid powders, the trouble in the image display durability there is a case of causing. As the solvent (good solvent) in measuring the solvent insoluble rate, methyl E chill ketone is a fluorine resin, methanol, etc. in the polyamide resin, the acrylic urethane resin .. methyl Edji Le ketone, toluene and the like, melamine acetone is down resin, isopropanol, toluene and the good preferable is a silicone resin.

Next, the common components to the first invention and the second invention.

First, a description will be given of a substrate.

Transparent substrate 1 is a substrate can be confirmed color of the particles or the liquid powders from outside of the device, it is preferable a material transmittance and heat resistance high visible light. The presence or absence of flexibility is appropriately selected depending on the application, for example, wood fees for applications of the electronic base one par like a flexible, mobile phone, PDA, portable for applications of the mobile device display, etc. Roh one notebook computer such material is used rattan having no.

Examples of the substrate material include polyethylene terephthalate evening rate, polyether follower down, polyethylene, polymers sea Bok and such as polycarbonate, glass, quartz for which inorganic sheet one preparative like.

Substrate thickness, 2~1 1 0 0 ΓΠ, preferably suitably 5~ 7 0 0 / m, too thin, it becomes difficult to maintain strength and distance uniformity between the substrates, it is too thick, as a display function sharpness of the reduction in the contrast occurs, particularly, in the case of electronic paper applications lacks flexibility.

The substrate electrode may be provided if necessary.

If the substrate is not provided with an electrode, giving an electrostatic latent image on the substrate outer surface, at the electric field generated in response to the electrostatic latent image, the colored particles or the liquid powders charged in a predetermined characteristic by attracted or repelled substrate, viewing the particles or the liquid powders obtained by arranging in correspondence with the electrode potential from the display device outside through the transparent substrate. Contact name formation of the electrostatic latent image is transferred is formed on the substrate of the image display apparatus of the present invention the line dividing the electrostatic latent image in a conventional xerographic systems using an electrophotographic photosensitive member, or I ON flows given by when the electrostatic latent image providing an electrode on a substrate which can be done in a method such as directly formed on the substrate by an external voltage input to the electrode site, the electric field generated each power pole position on the substrate by characteristics charged color particles or the liquid powders of be pulled or repelled, group particles were arranged correspondingly to the electrostatic latent image Oh Rui the method of viewing the display device outside the liquid powders through the transparent substrate is there. Electrodes provided on the transparent substrate side is made form in a transparent and pattern can be formed conductive material, To illustrate, indium oxide, metal such as aluminum, Porianiri down, polypyrrole, conductive polymers such as Porichiofen like It is, vacuum deposition, forming technique such as coating can be exemplified. The electrode thickness may unless trouble can be light transparently sexual ensuring conductivity, 3 to 1 0 0 0 nm, preferably suitable 5~4 0 0 nm.

Electrodes provided on the rear substrate side is formed by the need to be transparent is a pattern can be formed instead of the conductive material, To illustrate, indium oxide, metals such as aluminum, gold, silver, copper, Poria diphosphate, polypyrrole Ichiru, include conductive high content child such as Porichiofen, vacuum deposition, forming technique such as coating can be exemplified. The electrode thickness may unless trouble can be light transmissive ensure conductivity, 3 to 1 0 0 0 nm, rather preferably is suitably 5 to 4 0 0 nm.

External voltage input in this case, may be superimposed with a direct current or alternating current.

The shape of the barrier ribs 7 of the present invention is suitably designed by the size of the size or the liquid powders of grains used for the display, but categorically is not limited, the width of the partition wall 2 to 1 0 0 m, preferably 3 to 5 to 0 m, the height of the partition wall. 2 to 5 0 0 0 m, are preferably adjusted to 5-5 0 0.

Display cell formed by the partition walls each made ribs viewed from a plane surface of the substrate a triangular shape, a line shape, a circular shape and a hexagon shape, and the like, lattice or honeycomb is illustrated as an arrangement.

It is better that small as possible showy portion corresponding to a cross section of the partition wall visible from the display side (an area of ​​the frame portion of the display cell), sharpness of the image display is increased.

Here, to illustrate the formation method of the partition wall 7, a screen printing method, Sa:

Law, photolithography Aditipu method. Among photolithography method using a resist film is preferably used.

<For example according to the first aspect of the present invention>

Next Example In the first invention, shows a comparative example, further you specifically explaining the present invention. However, the present invention is not limited by the following examples.

Following manufacturing method, it was fabricated and evaluated image display apparatus to which the present invention.

• Preparation of mask

Paste the dry film Les resist on a substrate made of SUS 4 3 0, SUS 3 4 0 thickness 5 0 m, the predetermined pattern exposure - development - etching, various openings and lines as shown in FIG. 4 to obtain a mask having a width. Among SUS 4 3 0 is a magnetic material. In FIG. 4 also shows the shape of the partition wall. Also, the description of FIG. 4 shows only one display cell.

• Preparation of the electrode pattern

About 5 0 paste dry film resist indium oxide glass of OA thickness, through a positive mask of various electrode patterns, to obtain a substrate with pattern electrodes by exposure ~ development ~ etching.

• Preparation of the partition wall

Paste dry film resist strike 5 0 m in way the electrode-bearing substrate prepared above, the display cell 5 0 0 mD, through a negative mask of the barrier rib pattern of barrier ribs width 5 0, 4 by exposure-development to obtain a lattice-like barrier rib pattern electrode-bearing substrate, such as shown in.

• Preparation of the partition wall substrate with does not have the electrode

Other substrates with electrodes, the partition wall substrate with no accompanying electrodes were prepare as follows. First, on a glass plate no electrode is formed on a surface Paste Doraifu Irumurejisuto of 50 / m, the display cell 500 Tauitapai, through a negative mask of the grid pattern of the partition wall width 50, shown in FIG. 4 by the exposure-development to obtain a lattice-shaped partition with a substrate, such as.

• Preparation of particles

2 types of particles (particles A, the particles B) was prepared.

Particles A was added to the acrylic urethane resin EAU53B (Asia Industry Ltd.) / I PDI-based crosslinking agent E Kuseru Hardener HX (Asia Industry Co.), CB4phr, charge control agents Pontoron NO 7 a (Orient Chemical Industries) 2 phr, kneaded after, to prepare the ground and classified to particles by a jet mill. Atsuta in the black particles are particles A.

Particles B is § acrylic urethane resin E AU 53 B (Asia Industry Co., Ltd.) / I PD to I-based crosslinking agent Ekuseruhadona one HX (Asia Industry Co., Ltd.), titanium oxide 10 phr, luggage charge control agent Pontoron E89 (manufactured by Orient Chemical) 2 It was added phr, after kneading, to prepare the particles and powder 碎分 classified using a jet mill. Particles B was white particles. The average particle diameter of the particles A is 9. was 2 m, the average particle diameter of the particles B is 7. was 1 m. Surface charge density of the particles A is +25 C / m 2, the surface charge density of the particles B was an 55 CZM 2.

Production of • liquid powder

Two liquid powders (white liquid powder X, a black liquid powder Y) was prepared.

White働流body (liquid powder X), first, methyl methacrylate monomer, Ti0 2 (20 phr), charge control agent Pontoron E 89 (Orient Chemical Co., Ltd., 5 phr), open initiator AIBN (0. 5 phr ) after suspension polymerization was used E abacus particle size in the classification device. Next, Haiburidiza - apparatus using (Nara Machinery Co., Ltd.), the external additive A (silica H 2000/4, manufactured by Wakka Inc.) These particles external additive B (silica SS2 0, Japan Silica Ltd.) were charged, and immobilized to a particle ϊ¾ surface obtained by polymerizing an external additive was 5 minutes at 4800 rotation was adjusted to the liquid powders. The liquid powders X positively chargeable der ivy.

Black 働流 body (liquid powders Y), first .. styrene monomer, § zone-based compound (5 phr), charge control agent Pontoron NO 7 (Orient Chemical Co., Ltd., 5 phr), initiator AI BN (0. 5 phr) after suspension polymerization was used to align the particle diameter at the classification device. In the following, with reference to a hybridizer one device, the external additive C (silica H2050, Wakka Co.) in these particles and the external additive B (silica SS20, Japan Silica Co., Ltd.) was charged in 48 00 Rotation for 5 minutes to immobilize the grain ί¾ surface obtained by polymerizing external additive was adjusted to the liquid powders. The liquid powders Υ was negatively charged.

• bonded filling - of the particles - Display - Evaluation

In the cells of the partition wall substrate with were prepared as described above, particle Α, 12 gZm 2 (respectively 6 g / m 2) particles Β projected area of the display cell, relative to filled with a free-falling method, other one and a counter substrate of the substrate by aligning, to adhere the two substrates Ri by the epoxy adhesive, the distance between the substrates to produce an image display apparatus 50 zm. It takes conductor through the electrode or al FPC, by applying a voltage to obtain an image. Evaluation and to the missing X, dot filling when the filling amount does not reach the 12 gZm 2, X pictures when produced line disconnect injury, adhesion if the particles remained on the partition wall was set to X. In addition, the case was good in any case 〇, was the case was even better ◎

- stuck-filling of the liquid powders - Display - Evaluation

In the cells of the partition wall substrate with were prepared as described above, 12 gZm 2 (respectively 6 gZm 2) was charged to the projection area of Konaryu body X, it displays the liquid powders Y cells with a free-falling method, other one and a counter substrate of the substrate by aligning, to adhere the two substrates with an epoxy adhesive, the distance between the substrates to produce an image display device 50. It takes lead through FPC from electrodes, by applying a voltage to obtain an image. The evaluation omission X, dot filling when the filling amount does not reach the 12 g / m 2, when the line loss has occurred and X a bond in case the liquid powders an image on X septum was Zantsu did. In addition, the case was good in any case 〇, was the case was even better ◎.

(1) Example of particles

According to a common manufacturing method described above, as follows, to produce an image display device of Examples 1 5 and Comparative Examples 1 to 3 were compared. The Examples 1-4 the substrate with electrodes in Example 5 using a substrate that does not have the electrode. The results shown in Table 1 below.

(Example 1)

Particles A, when filling the particles B, the openings 500 NMU, the S US 304 made of a mask having a line width 50 m was placed in alignment on the upper surface of the partition walls and remove the mask after grain filling. The resulting image display apparatus, dot omission, no missing lines, also did not remain particles also on septum wall.

(Example 2)

Particles A, when filling the particles B, (8 1% against the projected area of ​​the display cell) opening 450 tm port, S US 30 of line width 1 00 m (200% relative to the line width of the partition wall) 4 made mask placed in alignment on the upper surface of the partition walls, removed the mask after grain filling. The resulting image display apparatus, dot omission, no missing lines, also did not remain particles in the partition wall.

(Example 3)

Particles A, when filling the particles B, the openings 52 0 m port (1 08% against the projected area of ​​the display cell), manufactured by SUS 304 having a line width of 30 im (60% with respect to the line width of the partition wall) the mask was placed in alignment on the upper surface of the partition walls, removed the mask after filling $ Ritsuko. The resulting image display apparatus, dot omission, no missing lines, also did not remain particles in the partition wall.

(Example 4)

Particles A, when filling the particles B, the openings 50 0 m port, a S US 430 made of a mask which is a magnetic materials having a line width of 50 m was placed in alignment on the upper surface of the partition walls, the magnets from the substrate rear surface was addressed fixed, was removed after grain filling mask and the magnet. The resulting image display apparatus, dot omission, without missing lines and did not even such remain particles on the partition wall.

(Example 5)

Particles A, as a substrate for filling the particles B, except that a glass substrate with barrier ribs that do not have the electrode was manufactured image display device in the same manner as in Example 4. This is the image display device shown because there is no electrode has failed performed.

(Comparative Example 1)

Particles A, when filling the particles B, the opening portion 2 0 0 m opening (1 6% against the projected area of ​​the display cell), the line width 3 5 0 m (7 0 0% to the line width of the partition wall the SUS 3 0 4 made mask) placed in alignment on the upper surface of the partition walls, removed the mask after grain filling. Opening of the mask was not able to fill the filling amount of small targets.

(Comparative Example 2)

Particles A without a mask, filled with particles B. The on partition walls of the finished image display apparatus remaining particles, it occurs adhesion failure.

(Comparative Example 3)

Particles A without a mask, filled with particles B. To remove particles on the partition wall, it was subjected 1 0 reciprocating shea Rico one emission cleaning roll. It had no particles on septum wall of the finished image display apparatus, but resulted in missing dot.

table 1

From the results of Table 1, the Examples 1 5 were placed a mask on the partition wall, in comparison with Comparative Example 2, 3 not installed a mask on the barrier ribs, filling, image display, adhesion, and have contact to the overall evaluation , it can be seen that all is good. Moreover, even if provided with a mask, if the opening of the mask as in Comparative Example 1 is small it can be seen that not obtain good results. Furthermore, among Examples 1 to 5, the KoTsuta Examples 4 and 5 the fixation of the mask made of a magnetic material and arranged magnets on the substrate rear surface upon installation of the mask, Example 1 was not performed and fixed by magnet compared to 1-3, it is understood that it is possible to obtain even better results.

(2) Example of the liquid powders

According to a common manufacturing method described above, as follows, to produce an image display device of Examples 11 to 15 and Comparative Examples 11 to 13 were compared. The substrate with electrodes in Examples 11-14, using a substrate in Example 15 no accompanying electrodes. The results shown in Table 2 below.

(Example 11)

Liquid powders X, when filling the liquid powders Y, openings 500 m port, a S US 304 made of a mask having a line width 50 xm placed in alignment on the upper surface of the partition walls, removed the mask after the liquid powders filling. The resulting image display apparatus, dot omission, no missing lines, also did not remain even liquid powders on bulkhead.

(Example 12)

Liquid powders X, when filling the liquid powders Y, (81% with respect to the projection surface product of the display cell) opening 450 ^ mD, line width 1 0 Ο ΓΠ of (200% relative to the line width of the partition wall) the SUS 304 steel mask was placed in alignment on the upper surface of the partition walls and remove the mask after the liquid powders filling. The resulting image display apparatus, dot omission, no missing lines, also did not remain powdery fluid also on septum wall.

(Example 13)

Liquid powders X, when filling the liquid powders Upsilon, openings 520 m openings (8% with respect to the projection surface product of the display cell), SUS line width SO ^ m (60% with respect to the line width of the partition wall) 3 0 4 mask made by aligning on the upper surface of the partition walls assembled and remove the mask after the liquid powders filling. Dekiaga One image display apparatus, dot omission, no missing lines, also has failed to remain even liquid powders on bulkhead.

(Example 1 4)

Liquid powders X, when filling the liquid powders Y, placed openings 5 ​​0 0 m port, a SUS 4 3 0 mask made of a magnetic material having a line width of 5 0 m in alignment on the upper surface of the partition walls, the magnet addressed fixed from the substrate backside, removing the mask and the magnet after the liquid powder filling. The image display apparatus above therefore possible, dead pixels, no missing lines, also did not remain powdery fluid in the partition wall.

(Example 1 5)

As the substrate to fill liquid powders X, the liquid powders Y, except for using a glass substrate with barrier ribs that do not have the electrode was manufactured image display device in the same manner as in Example 1 4. The image display device of this display because there is no electrode was not performed.

(Comparative Example 1 1)

Liquid powders X, when filling the liquid powders Y, opening 2 0 0 / m opening (1 6% relative to the projection surface product of the display cell), with respect to the line width 3 5 0 m (line width of the partition wall the SUS 3 0 4 made mask 7 0 0%) was placed in alignment on the upper surface of the partition walls and remove the mask after the liquid powders filling. Opening of the mask was not able to fill the filling amount of small targets.

(Comparative Example 1 2)

Liquid powder X without a mask, filled with liquid powder Y. The on partition walls of the finished image display apparatus remains liquid powder, produced a poor adhesion.

(Comparative Example 1 3)

Liquid powder X without a mask, filled with liquid powder Y. Order to remove the liquid powders on the partition wall, was subjected 1 0 reciprocated silicone cleaning roll. The resulting image display instrumentation on location of the partition wall was no liquid powder, but resulted in missing dot. Table 2

From the results of Table 2, Example 1 1 to 1 5 were placed a mask on the partition wall, in comparison with Comparative Example 1 2, 1 3 which has not established a mask on the barrier ribs, filling, image display, adhesion, in the overall evaluation, it can be seen that all is good. Moreover, even if provided with a mask, if the opening of the mask as in Comparative Example 1 1 is small it can be seen that not obtain good results. Furthermore, in the examples 1 1 to 1 5, Example 1 4 and 1 5 were fixed mask made of a magnetic material and arranged magnets on the substrate rear surface upon installation of the mask did not perform fixed by magnet It was compared to example 1 1 to 1 3, it can be seen that it is possible to obtain even better results.

Industrial Applicability

As apparent from the above description, according to the first aspect of the present invention, when the particles or the liquid powders filling into the display cell to be thus formed in the partition wall on the substrate, the barrier rib pattern the same way the mask on the partition wall due to the installation, it is possible to prevent adhesion onto the particles or the liquid powders bulkhead. Thus, it is possible to remove particles or the liquid powders remaining on the partition wall, it is possible to prevent failure of the display element caused by residual particles or liquid powders.

In addition, according to the second aspect of the present invention, when Ru using an adhesive for bonding between the partition wall and the substrate, by performing the application of the adhesive by screen printing, contact adhesive only between the partition wall and the substrate agent can be applied to, the adhesive can eliminate the deterioration of the element characteristics caused by applying the display surface of the substrate, it does not adversely affect the display characteristics.

Therefore image display device including an image display panel of the present invention, a laptop, PDA, mobile phone, the display portion of the thermopile devices such as handy terminals, electronic blanking click, electronic paper, such as electronic newspapers, billboards, posters and foremost, the display unit of the bulletin board, a calculator, a consumer electronics products, such as automotive supplies, such as a blackboard, point card, the card display unit such as an IC card, electronic advertising, electronic POP, electronic price tags, electronic music score, to the display section of the RF- ID equipment It is preferably used.

Claims

The scope of the claims
1. At least one of encapsulating particles or liquid powders between the substrates facing two transparent displays more images to moving the particles or the liquid powders by generating an electric field between the substrate, the partition wall the method of manufacturing a separated image display apparatus comprising a plurality of display cells at the time of sealing enter the particles or the liquid powders in a cell separated by barrier ribs between the substrate and placing the mask on the upper surface of the partition walls method of manufacturing an image display device comprising.
2. The mask was placed on the upper surface of the partition walls consist of magnetic material, fixed to the bulkhead upper surface of the mask by magnetic force from the electrode plate and the rear, an image display equipment manufacturing method of claim 1, wherein for adhering.
3. A 3 0-1 50% with respect to the projection area of ​​the opening the display cell of the mask, according to claim 1 line width of mask is 1 0-5 0 0% the line width of the partition wall or a method for manufacturing an image display device according.
4. The material of the mask, a metal, alloy, metal oxide, polymer resin or manufacturing method of an image display apparatus according to any one of claims 1 to 3, which is then found mixture of
5. Substrate having cells separated by partition walls, a manufacturing method of an image display apparatus according to any one of claims 1 to 4, which is a substrate provided with electrodes.
6. The particles or the liquid powders sealed between the transparent substrate and the counter substrate, and displays an image by moving the particles or the liquid powders giving an electric field to the particles or liquid powders, which is isolated from each other Ri by the partition wall shall apply one or more of the method of manufacturing the images display device having an image display panel having an image display device, wherein the forming a partition wall on one substrate of the transparent substrate and the counter substrate, an image display which is isolated by a partition wall also particle group in a space that constitutes the element filled with the liquid powders, to remove ZanTsuta unwanted particles or liquid powders on the partition wall, the surface of the other substrate of the transparency substrate and the counter substrate, and the partition the adhesive was screen printed in a position opposed to the partition wall and by joining the other of the substrate through an adhesive, a method of manufacturing an image display device, characterized in that to obtain an image display panel.
7. The particles or the liquid powders sealed between the transparent substrate and the counter substrate, and displays an image by moving the particles or the liquid powders giving an electric field to the particles or liquid powders, which is isolated from each other Ri by the partition wall a method of manufacturing a picture image display device having an image display panel having one or more image display elements, the partition wall is formed on one substrate of the transparent substrate and the counter substrate, or particles on the tip of the partition wall while leaving the liquid powders, the partition wall by filling the particles or the liquid powders in a space constituting the quarantined image display device, the transparent substrate and the other surface of the substrate of the counter substrate faces the partition wall an adhesive scan screen printing in position, remaining the particles or the tip of the adhesive and the partition wall and the partition wall and the other substrate was bonded via the Konaryu, and characterized by obtaining an image display panel production of an image Display apparatus Method.
8. The particles or the liquid powders sealed between the transparent substrate and the counter substrate, and displays an image by moving the particles or the liquid powders giving an electric field to the particles or liquid powders, which is isolated from each other Ri by the partition wall a method of manufacturing a picture image display device having an image display panel having one or more image display elements, forming a partition wall on one substrate of the transparent substrate and the counter substrate, the adhesive at the tip of the partition wall screen printing, the screen printed adhesives semi-cured, was or particles in a space that constitutes an image display device which is isolated by the partition wall filled with a liquid powder, on a semi-cured adhesive on the partition wall the remaining remove unwanted particles or liquid powders, and the other substrate of the transparent substrate and the counter substrate and the partition walls are joined via a semi-hard phased adhesive, to obtain an image display panel an image display device comprising Production method.
9. After the partition wall and the other substrate was fixed via an adhesive, a sealing agent is applied to the outermost peripheral portion of the substrate to a uniform atmosphere between the transparent substrate and the opposing board, display images the method of manufacturing an image display device according to any one of claims 1 to 8 modules by being connected to the electrode circuit for.
1 0. The image display apparatus characterized by the manufacturing by the manufacturing method of an image display apparatus according to any one of claims 1-9.
PCT/JP2004/002860 2003-03-06 2004-03-05 Production method for iamge display unit and image display unit WO2004079442A1 (en)

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