KR100841683B1 - Device and method for manufacture of electronic paper - Google Patents

Abstract

A system and a method for manufacturing an electronic paper are provided to manufacture a panel of the electronic paper by moving particles from an electrode to a cell of a panel by electric field effects by controlling the amount of electric fields of the stamp electrode and the panel, thereby improving a process only through proper manufacture and replacement of the stamp. A PC(Personal Computer)(10) minutely controls stages through a camera(50) for precise array. A microprocessor(20) transceives information with the PC, and controls first to third variable high voltage modules(31,32,33) according to the transceived information. The first variable high voltage module controls an electric field of an electrode of a stamp(90) according to information transmitted to the microprocessor. The second variable high voltage module controls a second precise location controller(70) according to information transmitted to the microprocessor. The third variable high voltage module controls an electric field of a third precise location controller(80) according to information transmitted to the microprocessor. A vision board(40) controls the camera according to control information by receiving information of the PC. The camera is minutely controlled according to the control information of the vision board to photograph a minute array of the stamp, and generate minute array data. Particles(60) are coated on the electrode of the stamp, and filled within a panel(85) above the third precise location controller. The second precise location controller is filled with the particles and performs a minute motion. The third precise location controller supports the panel and performs a minute motion. The panel as a frame of an electronic paper is placed on an upper part of the third precise location controller, and filled with the particles. The stamp fills the panel with the particles by applying the particles onto the electrode. A first precise location controller(95) minutely controls the stamp, and conveys the particles. A distance sensor(96) is controlled by the PC and senses a movement distance of the stamp.

Description

Device and Method for Manufacture of Electronic Paper

1 is a configuration diagram of a system for manufacturing electronic paper according to a preferred embodiment of the present invention;

2 is an enlarged view of a stamp 90 according to a preferred embodiment of the present invention;

3 is a block diagram of a stamp and a panel according to a preferred embodiment of the present invention;

4 is a side cross-sectional view of a stamp and a panel according to a preferred embodiment of the present invention;

5 is a flowchart illustrating a method of manufacturing electronic paper according to a preferred embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

10: PC 20: Microprocessor

31: first variable high voltage module 32: second variable high voltage module

33: third variable high voltage module 40: vision board

50: camera for precision alignment 60: particle

61: particle storage container 70: second precision position control unit

80: third precision position control unit 85: panel

90: stamp 91: electrode

92: first insulating layer 93: transparent substrate

94: second insulating layer 95: first precision position control unit

96: distance sensor

The present invention relates to a system and method for manufacturing electronic paper. More specifically, a certain amount of particles charged on the electrode of the stamp composed of the wiring, the electrode and the insulating layer is attached to the electrode according to the applied electric field, and the stamp is moved to align the electrodes of the stamp with each cell of the panel. The present invention relates to an electronic paper manufacturing system and method for filling a cell of a panel by moving particles attached to an electrode to a cell of the panel by controlling an applied electric field on the panel.

In general, paper is used as a medium for recording, storing as a document, producing a book, reading, writing, and transmitting information. Among them, various display devices have been developed in various forms such as LCD, CRT, TFT-LCD, PDP, etc. As a medium for transmitting information, research on flexible displays that can be rolled around like paper is being actively conducted. One of the next generation display technologies is electronic paper.

In the background, electronic paper is freely input / output based on digital electronic signal.

It is thin like paper and can be rolled around. Electronic paper is actually written on paper

It is like seeing a ruler, and contrast is much clearer. In addition, conventional CRT or LCD

Its resolution is higher than that of the screen, and it is useful as an electronic text display. The electronic display can store content even when the power is turned off and uses only 1 / 1,000 of the LCD's power consumption, thereby solving the battery problem. According to E-INK, e-ink technology uses a microcapsule filled with black fuel and electrically sensitive white semiconductors sandwiched between pieces of iron and transparent plastic.

This electronic paper has a high resolution of 160 pixels per inch.

In addition, the electronic paper is a surge replacement electronic device such as an e-book, electronic magazine, electronic newspaper

Of course, it can be used in various forms such as mobile phones, PDAs, advertising bulletin boards, price display devices, and the like, plate type, book type, scroll type, and paper type. It is classified according to what kind and how to operate the main material used for electronic paper, that is, the material corresponding to ink.

First of all, as the ink material, the particle form, liquid crystal, OLED, etc.

In addition, techniques using thin films, thermally sensitive materials, liquids, and redox materials have been proposed and studied, and the methods are divided according to the driving principle within each classification.

Electronic paper using particles may be electrophoretic, particle rotating, dry moving, magnetophoretic, or thermosensitive, depending on the driving principle.

Among the manufacturing methods of the electronic paper, the present invention uses a new and advanced production system and process technology. The invention uses a transparent substrate for the production of a stamp for vision alignment, and solves the problem that particles accumulate on the partition walls of the panel. An insulating layer was formed on the lower surface of the stamp except for the lowering of the electric field in the region other than the electrode, so that the particles were stuck only around the electrode to which the relatively high electric field was applied. In particular, the stamp was designed by forming a thin film insulating layer on the lower surface of the stamp including the electrode in order to prevent the damage of the particles due to various problems that may occur during the transport and control of the particles. After adjusting the applied electric field to the stamp produced to solve various problems, and by controlling the precision transfer device, a certain amount of particles are brought from the container where the particles to be filled are stored to the electrode of the stamp, and then aligned with the cell of the panel It is an object of the present invention to provide a manufacturing system and method for manufacturing an electronic paper panel by controlling the electric field amount of an electrode and the electric field amount of a panel to move particles from an electrode of a stamp to a cell of a panel by an electric field effect.

In order to achieve this object, the present invention provides an electronic paper manufacturing system,

A PC 10 for finely controlling the stages through the camera 50 for precise alignment; The microprocessor 20 performs information communication with the PC 10 and controls the first variable high voltage module 31, the second variable high voltage module 32, and the third variable high voltage module 33 according to the communicated information. ); A first variable high voltage module (31) for controlling an electric field of the electrode (91) of the stamp (90) in accordance with the information transmitted to the microprocessor (20); A second variable high voltage module 32 controlling the second precision position controller 70 according to the information transmitted to the microprocessor 20; A third variable high voltage module 33 for controlling an electric field of the third precision position controller 80 according to the information transmitted to the microprocessor 20; Vision board 40 for receiving the information of the PC 10 to control the camera 50 for precise alignment in accordance with the control information; A fine alignment camera 50 which is finely controlled according to the control information of the vision board 40 to generate fine alignment data by capturing fine alignment of the stamp 90; Particles 60 which are coated on the electrode 91 of the stamp 90 and filled in the panel 85 on the third precision position control unit 80; A second precision position controller 70 for containing the particles 60 and performing fine movement; A third precision position controller 80 supporting the panel 85 and performing fine movement; A panel 85 mounted on an upper portion of the third precision position control unit 80 to form a frame of electronic paper and filled with particles 60; The particles 60 are put on the electrode 91 by coating the particles 60 contained in the second precision position controller 70 on the panel 85 on the upper portion of the third precision position controller 80. Filling stamp 90; A first precision position control unit (95) for fine control of the stamp (90) and for conveying the particles (60); And a distance sensor 96 under the control of the PC 10 to detect the moving distance of the stamp 90.

In addition, the stamp 90 is located on the first surface and the photographing of the precision alignment camera 50

A transparent substrate 93 serving as an object and providing image data necessary for precise control; A first insulating layer 92 positioned on a surface of the transparent substrate 93 and electrically separating a region excluding the electrode and the transparent substrate 93 from the wiring layer for applying an electric field and an area on the wiring layer; A second insulating layer 94 for treating the surface of the first insulating layer and the electrode 91 with a thin film and preventing damage to the particles 60; And an electrode 91 positioned inside the second insulating layer 94 and having a cylindrical or polygonal pillar shape and attracting the particles 60 to an electric field and filling the panel 85. Characterized in that made.

Further, in the electronic paper manufacturing method, (a) the stamp 90 is moved by the first precision position control unit 95 using the information of the distance sensor 96 to the particle surface layer of the particle storage container 61 ; (b) moving the particle main container 61 between the stamp 90 and the substrate by the second precision position control unit 70; (c) Applying the voltage of the first variable high voltage module 31 connected to the electrode 91 of the stamp 90, and adjusts the applied voltage of the second variable high voltage module 32 of the particle storage container 61 stamp Attaching the particle 60 to the electrode 91 of the 90 using an electric field, and then separating the stamp 90 and the particle storage container 61 through the first precision position control unit 95; (d) increasing the voltage of the second variable high voltage module 32 again to prevent scattering of the particles 60 and repositioning the particle storage container 61 through the second precision position controller 70; (e) The stamp 90 having the particles adhered to the upper end of the substrate through the first precision position control unit 95 and the position of the electrode 91 and the substrate cell through the precision alignment camera 50 are first precision. Arranging through the position control unit 95; (f) moving the position through the distance sensor 96 such that the electrodes 91 of the aligned stamp 90 are placed in the cells of the substrate; (g) Raising the voltage applied to the third variable high voltage module 33 attached to the third precision position control unit 80, and weakens the voltage applied to the stamp 90 through the first variable high voltage module 31 Moving into the cell according to the electric field across the cell of the substrate; (h) returning to the initial position of the stamp 90 through the first precision position controller 95; (i) moving the cells filled with the particles 60 through the third precision position control unit 80 and repeating the filling of the particles 60 in the new cells.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a block diagram of a system for manufacturing electronic paper according to a preferred embodiment of the present invention.

Referring to Figure 1, the present invention is a PC 10 for finely controlling the stages through the camera 50 for precise alignment; A microprocessor 20 which communicates with the PC 10 and controls the first variable high voltage module 31, the second variable high voltage module 32, and the third variable high voltage module 33 according to the communicated information; A first variable high voltage module 31 for controlling an electric field of the electrode 91 of the stamp 90 according to the information transmitted to the microprocessor 20; A second variable voltage module 32 controlling the second precision position controller 70 according to the information transmitted to the microprocessor 20; A third variable high voltage module 33 for controlling an electric field of the third precision position controller 80 according to the information transmitted to the microprocessor 20; Vision board 40 for receiving the information of the PC 10 to control the camera 50 for precise alignment in accordance with the control information; A fine alignment camera 50 which is finely controlled according to the control information of the vision board 40 to capture fine alignment of the stamp 90 to generate fine alignment data; Particles 60 coated on the electrodes 91 of the stamp 90 and filled in the panel 85 on the third precision position control unit 80; A second precision position control unit 70 that contains particles 60 and moves finely; A third precision position controller 80 supporting the panel 85 and performing fine movement; A panel 85 mounted on an upper portion of the third precision position control unit 80 to form a frame of electronic paper and filled with particles 60; A stamp 90 which fills the particles 60 with the panel 85 on the upper part of the third precision position controller 80 by coating the particles 60 contained in the second precision position controller 70 on the electrode 91; The distance sensor 96 detects the movement of the stamp 90 under the control of the PC 10 and transfers the detected information back to the PC 10 so that the stamp 90 moves precisely.

The PC 10 controls the stamp 90, the second precision position control unit 70, and the third precision position control unit 80 in advance to move the stamp 90 precisely, and to the electrode 91 of the stamp 90. Particles 60 contained in the upper part of the second precision position controller 70 are pulled and coated using an electric field, and then the stamp 90 is moved to be coupled to the panel 85 mounted on the upper part of the third precision position controller 80. To control it.

The control information receives the stage state information photographed by the precision alignment camera 50 through the vision board 40 and transmits the micromanipulation control command of the stage according to the transmitted data.

The microprocessor 20 controls the first variable high voltage module 31 so that the stamp 90 moves so that the particles 60 contained in the particle storage container 61 at the upper end of the second precision position control unit 70 are transferred to the electrode ( When applied to 91, the electric field is strengthened through the first variable high voltage module 31 so that the particles 60 are coated on the electrode 91.

When the stamp 90 is coupled to the panel 85, the third variable high voltage module 33 is controlled to strengthen the electric field of the third precision position controller 80, and the electric field of the electrode 91 of the stamp 90 is controlled. The first variable high voltage module 31 is controlled to weaken so that the particles 60 are separated from the electrode 91 and filled in the panel.

The first variable high voltage module 31, the second variable high voltage module 32, and the third variable high voltage module 33 are respectively stamped 90 and second precision by the control signals of the microprocessor 20. By operating the electric field of the position control unit 70, the third precision position control unit 80 is operated to securely fill the particle 60 to the panel.

The vision board 40 converts the image data captured by the precision alignment camera 50 and transmits the image data to the PC 10 and receives the control signal from the PC 10 to control the precision alignment camera 50. .

The precision alignment camera 50 serves to generate data capable of controlling the horizontal state of the stamp 90 by photographing the transparent substrate 93 of the stamp 90.

Particles 60 are stored in the second precision position control unit 70 as a main element for making the panel 85 into electronic paper, and are transported by the electrode 91 of the stamp 90 to the upper portion of the third precision position control unit. The panel 85 will be filled.

The first precision position control unit 95 configures the stamp 90 as three-axis stages of X, Y, and Z under the control of the PC 10 to align X, Y through image information, and adjust the distance sensor 96. Through Z-axis position control, it performs precise fine control.

The second precision position controller 70 contains the particles 60 thereon and is controlled by the electric field control signal of the first variable high voltage module 31 controlled by the microprocessor 20 and finely controlled by the PC 10. As a result, an electric field is generated strongly or weakly.

The third precision position control unit 80 has a panel 85 mounted thereon, and is controlled by the microprocessor 20 and finely controlled by the PC 10 like the second precision position control unit 70. The electric field is strongly weakened according to the electric field control signal of the three variable high voltage module 33.

The panel 85 becomes a frame of electronic paper and is filled with the particles 60.

Although the stamp 90 will be described in detail with reference to FIG. 2, the first variable high voltage module 31 finely controlled by the PC 10 and controlled by the microprocessor 20, such as the second precision position controller 70, may be described. According to the electric field control signal of, the electric field is strong or weak.

The distance sensor 96 detects the movement of the stamp 90 under the control of the PC 10, and transfers the detected information back to the PC 10 so that the stamp 90 moves precisely.

2 is an enlarged view of a stamp 90 according to a preferred embodiment of the present invention.

Referring to FIG. 2, the stamp 90 is located on the first surface and is a transparent substrate 93 which serves as a photographing target of the precision alignment camera 50 and serves to provide data necessary for precise manipulation; A first insulating layer 92 positioned on an upper surface of the transparent substrate 93 and electrically separating the electrode 91 from the transparent substrate 93; A second insulating layer 94 doped to an upper surface of the first insulating layer and preventing the particles 60 from being destroyed by a current flowing through the electrode 91; An electrode 91 positioned on an upper surface of the second insulating layer 94 and having a cylindrical shape and attracting particles 60 to an electric field and filling the panel 85.

The transparent substrate 93 reflects light to inform the precision alignment camera 50 of the horizontal state of the stamp 90.

The first insulating layer 92 is positioned between the transparent substrate 93 and the electrode 91 to serve to electrically insulate between the two components.

The electrode 91 attaches and moves the particles 60 using an electric field according to the information sent from the first variable high voltage module 31 to fill the particles 60 in the panel 85.

3 is a block diagram of a stamp and a panel according to a preferred embodiment of the present invention.

Referring to FIG. 3, as shown in the drawing, the upper portion is a stamp 90 and the lower portion is a honeycomb panel 85.

Panel 85 has cells arranged at regular intervals. The cell is filled with particles 60 carried by the electrode 91.

The cells are densely formed when the resolution of the electronic paper is high, and large and sparse are formed when the resolution is low.

4 is a side cross-sectional view of a stamp and a panel according to a preferred embodiment of the present invention.

Referring to FIG. 4, as shown in the drawing, the electrode 91 of the stamp 90 is inserted between the partition walls of the third precision position control unit 85.

The inserted electrode 91 has a strong and weak electric field due to the control signal of the first variable high voltage module 31, and the particles 60 fall off, and the electric field strength of the third precision position controller 80 is a third variable high voltage. Intensified by the control signal of the module 33, the particles 60 falling from the electrode 91 are pulled out to fill the panel 85.

5 is a flowchart illustrating a method of manufacturing electronic paper according to a preferred embodiment of the present invention.

Referring to FIG. 5, first, the stamp 90 is moved by the first precision position controller 95 using information of the distance sensor 96 to the particle surface layer of the particle storage container 61 (S10).

Then, the particle main container 61 is moved between the stamp 90 and the substrate by the second precision position control unit 70 (S20).

In the next step, the voltage of the first variable high voltage module 31 connected to the electrode 91 of the stamp 90 is applied, and the applied voltage of the second variable high voltage module 32 of the particle storage container 61 is adjusted and stamped. After the particle 60 is attached to the electrode 91 of the 90 using an electric field, the stamp 90 and the particle storage container 61 are separated through the first precision position controller 95 (S30).

In addition, the voltage of the second variable high voltage module 32 is increased again to prevent scattering of the particles 60 and the particle storage container 61 is returned to its original position through the second precision position controller 70 (S40).

       Next, through the first precision position control unit 95 to move the stamp (90) with the particles to the upper end of the substrate and the position of the electrode 91 and the substrate cell through the precision alignment camera 50 to the first precision Alignment is performed via the position control unit 95 (S50).

The electrodes 91 of the aligned stamp 90 are moved through the distance sensor 96 so as to be put in the cells of the panel (S60).

The voltage is applied to the stamp 90 by increasing the applied voltage of the third variable high voltage module 33 attached to the third precision position controller 80 and weakening the voltage applied to the stamp 90 through the first variable high voltage module 31. In accordance with the electric field applied to the cell is moved into the cell (S70).

The first precision position control unit 95 returns to the initial position of the stamp 90 (S80).

       The cell 60 filled with the particles 60 is moved through the third precision position controller 80 and the filling operation of the particles 60 is repeated in the new cell (S90).

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical spirit of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

As described above, according to the present invention, a stamp is manufactured by using a transparent substrate for vision alignment, and an insulating layer is formed on the bottom surface of the stamp except for the electrode so that the particles adhere to only the electrode periphery, whereby particles are accumulated on the partition walls of the panel. Improved removal of particles on bulkheads. In particular, a thin film insulating layer was formed on the bottom surface of the stamp including the electrode to prevent damage to the particles. After adjusting the applied electric field to the stamp manufactured for the above purpose, bringing a certain amount of particles from the container containing the particles to be filled through the control of the precision transfer device to the electrode of the stamp, after alignment of the cell and the vision of the panel, A manufacturing system and method in which a particle is moved from an electrode to a cell of a panel by an electric field effect by controlling an electric field and an electric field of a panel, thereby producing a panel of an electronic paper. It is convenient and economical because the process is renovated only by making and replacing the appropriate stamp, and the manufacturing process is very easy to enlarge and expand the facilities of the manufacturing facility by connecting the stamp and the stamp.

Claims (3)

In the electronic paper manufacturing system, A PC 10 for finely controlling the stages through the camera 50 for precise alignment; A microprocessor 20 which performs information communication with the PC 10 and controls the first variable high voltage module 31, the second variable high voltage module 32, and the third variable high voltage module 33 according to the communicated information; A first variable high voltage module (31) for controlling an electric field of the electrode (91) of the stamp (90) in accordance with the information transmitted to the microprocessor (20); A second variable high voltage module 32 controlling the second precision position controller 70 according to the information transmitted to the microprocessor 20; A third variable high voltage module 33 for controlling an electric field of the third precision position controller 80 according to the information transmitted to the microprocessor 20; Vision board 40 for receiving the information of the PC 10 to control the camera 50 for precise alignment in accordance with the control information; A fine alignment camera 50 which is finely controlled according to the control information of the vision board 40 to capture fine alignment of the stamp 90 to generate fine alignment data; Particles 60 which are coated on the electrode 91 of the stamp 90 and filled in the panel 85 on the third precision position control unit 80; A second precision position controller 70 for containing the particles 60 and performing fine movement; A third precision position controller 80 supporting the panel 85 and performing fine movement; A panel 85 mounted on an upper portion of the third precision position control unit 80 to form a frame of electronic paper and filled with particles 60; The particles 60 are put on the electrode 91 by coating the particles 60 contained in the second precision position controller 70 on the panel 85 on the upper portion of the third precision position controller 80. Filling stamp 90; A first precision position control unit (95) for fine control of the stamp (90) and for conveying the particles (60); And A distance sensor 96 which is controlled by the PC 10 and detects a moving distance of the stamp 90; System for producing electronic paper, characterized in that consisting of. The method of claim 1, wherein the stamp 90 A transparent substrate (93) positioned on a first surface and serving as a photographing target of the precision alignment camera (50), which serves to provide data required for precise manipulation; A first insulating layer 92 positioned on a surface of the transparent substrate 93 and electrically separating the electrode 91 and the transparent substrate 93 so that particles are attached only to the electrode; A second insulating layer 94 which is coated with a thin film on the surface of the first insulating layer and the electrode 91 so that an electric field passes and prevents the flow of current to prevent damage to the particles 60; And An electrode 91 positioned on an inner surface of the second insulating layer 94 and attracting the particles 60 to an electric field by using a cylindrical or polygonal pillar-shaped conductor connected to a wire and filling the panel 85. ; System for producing electronic paper, characterized in that consisting of. In the electronic paper manufacturing method,      (a) the stamp 90 is moved by the first precision position controller 95 to the particle surface layer of the particle storage container 61 using the information of the distance sensor 96; (b) moving the particle main container 61 between the stamp 90 and the substrate by the second precision position control unit 70; (c) Applying the voltage of the first variable high voltage module 31 connected to the electrode 91 of the stamp 90, and adjusts the applied voltage of the second variable high voltage module 32 of the particle storage container 61 stamp Attaching the particle 60 to the electrode 91 of the 90 using an electric field, and then separating the stamp 90 and the particle storage container 61 through the first precision position control unit 95; (d) increasing the voltage of the second variable high voltage module 32 again to prevent scattering of the particles 60 and repositioning the particle storage container 61 through the second precision position controller 70;      (e) The stamp 90 having the particles adhered to the upper end of the substrate through the first precision position control unit 95 and the position of the electrode 91 and the substrate cell through the precision alignment camera 50 are first precision. Arranging through the position control unit 95; (f) moving the position through the distance sensor 96 such that the electrodes 91 of the aligned stamp 90 are placed in the cells of the substrate; (g) Raising the voltage applied to the third variable high voltage module 33 attached to the third precision position control unit 80, and weakens the voltage applied to the stamp 90 through the first variable high voltage module 31 Moving into the cell according to the electric field across the cell of the substrate; (h) returning to the initial position of the stamp 90 through the first precision position controller 95;      (i) moving the cells filled with the particles 60 through the third precision position controller 80 and repeating the filling of the particles 60 into the new cells; Electronic paper manufacturing method comprising a.

Images