JP2007293179A - Image forming method and image forming system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily form a toner image with high accuracy on an object. <P>SOLUTION: In a toner liquid in which toner is dispersed, an electric field where the toner moves toward a developing member 6 is formed between a rectangular region 641 of the developing member 6 and an electrode surface 240 of an electrode member 24, while an electric field where the toner moves toward the electrode member 24 is formed between an electrode portion 63 and the electrode surface 240, and thereby, the toner deposits on the rectangular region 641 of the developing member 6 to form a toner image. Subsequently in a nonpolar solvent, an electric field where the toner moves toward a transfer surface is formed between the rectangular region 641 of the developing member 6 and the transfer surface of a glass substrate, and by rendering the potential difference between the electrode portion 63 and the transfer surface into zero, the toner image on the developing member 6 is transferred onto the transfer surface of the glass substrate. Thus, the toner image corresponding to the rectangular region 641 of the developing member 6 is easily formed with high accuracy on the transfer surface of the glass substrate. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a technique for forming a toner image on an object.

  Conventionally, a color filter is used in a liquid crystal display device used in a display unit of a TV apparatus or a computer. As a method for forming a filter layer of a color filter on a glass substrate, for example, a dyeing method for dyeing a pattern on a substrate formed from a photosensitive resin by using a photolithography technique, or a photosensitive method in which a pigment or other pigment is dispersed. A pigment dispersion method using a resin, and an electrodeposition method in which a pattern of a transparent conductive layer (for example, ITO (Indium-Tin-Oxide)) is formed on a substrate and a colored pattern is formed by electrodeposition are known. ing. However, these methods require a long time for forming the filter layer due to a complicated photolithography process, and it is difficult to reduce the manufacturing cost of the color filter. It is also attempted to form a filter layer by a printing method in which ink is directly printed on a substrate by an intaglio method, a relief printing method, a silk screen method, or an ink jet method in which minute droplets of ink are discharged from a discharge port onto the substrate. However, in order to manufacture a highly accurate color filter, an ink having appropriate characteristics is required, and such an ink is currently under development.

On the other hand, after charging the transparent photoconductive layer provided on the glass substrate, light is irradiated to form an electrostatic latent image, and toner is applied to the electrostatic latent image to form a color filter layer. Methods are also known (see, for example, Patent Documents 1 to 4). In electrophotography, it is possible to form a filter layer with a desired cell shape and arrangement in a shorter time and at a lower cost than techniques involving photolithography because it does not require complicated steps such as application of a photosensitive material. It becomes.
Japanese Patent Laid-Open No. 48-16529 JP-A-56-69604 JP-A-56-117210 JP-A-63-234203

  However, when forming the filter layer in the electrophotographic method, the steps such as formation of a transparent photoconductive layer on all glass substrates and formation of an electrostatic latent image by charging and exposure of the transparent photoconductive layer are minimal. It becomes necessary. In addition, an electrostatic latent image is formed on the photosensitive member of the photosensitive drum by a charger, a latent image forming unit, and a developing unit arranged around the photosensitive drum, and then a toner image is formed. Although it is conceivable to form a filter layer on a glass substrate by transferring it to a substrate, an electrostatic latent image is formed on the photoconductor with the accuracy required for a color filter, or a toner image on the photoconductor is made of glass. Various devices are required to transfer the substrate with high accuracy. Therefore, in order to form the toner image of the filter layer of the color filter more easily on the glass substrate, a new method different from the above method is required.

  The present invention has been made in view of the above problems, and an object thereof is to provide a novel technique capable of easily forming a highly accurate toner image on an object.

  The invention according to claim 1 is an image forming method for forming a toner image on a plate-like or film-like object, and a) a first area corresponding to the toner image and a second area other than the first area. A step of disposing a developing member having a developing surface in which a region is set in a toner liquid in which toner is dispersed, with the electrode surface of the electrode member and the developing surface facing each other with a minute gap; b) An electric field is formed between the first region and the electrode surface toward the developing surface of the toner, and an electric field is formed between the second region and the electrode surface toward the electrode surface of the toner. Or applying a first development potential, a second development potential, and a third development potential to the first region, the second region, and the electrode surface, respectively, so that the magnitude of the electric field is zero. C) The toner is in the first area. Placing the developed developing member in a non-polar solvent, and placing an object having a transfer surface in the non-polar solvent with a minute gap left between the transfer surface and the development surface. And d) an electric field is formed between the first region and the transfer surface, and the toner is directed toward the transfer surface, and the toner is developed between the second region and the transfer surface. The first transfer potential, the second transfer potential, and the second transfer potential are applied to the first region, the second region, and the object, respectively, so that an electric field toward the surface is formed or the magnitude of the electric field is zero. And 3 applying a transfer potential.

  The invention according to claim 2 is the image forming method according to claim 1, wherein the toner transferred to the transfer surface in step e) and d) is transferred to the transfer target outside the nonpolar solvent. And f) a step of repeating the steps a) to e) while changing the color of the toner, wherein the object is a transparent member having an insulating property, and the transferred object The toner image formed on the surface is the filter layer of the color filter.

  The invention according to claim 3 is the image forming method according to claim 2, wherein the same developing member is used when the steps a) to e) are repeated in the step f). c) Each time the process is repeated, the relative position of the transferred surface with respect to the developing surface is changed along the developing surface in accordance with the color arrangement of the filter layer of the color filter.

  A fourth aspect of the present invention is the image forming method according to the second or third aspect, wherein a black matrix is formed in advance on the transfer surface of the object.

  According to a fifth aspect of the present invention, in the image forming method according to the fourth aspect, the black matrix is conductive or semiconductive, and in the step d), the black matrix, the development surface, A fourth transfer potential is applied to the black matrix so that an electric field is formed between the toner and the developing surface, or the magnitude of the electric field is zero.

  The invention according to claim 6 is the image forming method according to any one of claims 1 to 5, wherein the developing member is on one main surface of a plate-like conductive or semiconductive substrate. In addition, an electrode portion corresponding to the first region or the second region is formed of an electrically conductive material or a semiconductive material via an insulating layer.

  A seventh aspect of the present invention is the image forming method according to any one of the first to sixth aspects, wherein the polarity of the first development potential is opposite to the polarity of the toner, or The first development potential is the ground potential.

  The invention according to claim 8 is the image forming method according to any one of claims 1 to 7, wherein the polarity of the third transfer potential is opposite to the polarity of the toner, or The third transfer potential is the ground potential.

  The invention according to claim 9 is an image forming system for forming a toner image on a plate-like or film-like object, and includes a first area corresponding to the toner image and a second area other than the first area. A developing device that attaches toner to the first region of the developing member having a developing surface on which is set, and a transfer device that transfers the toner attached to the first region to a transfer surface of an object, A developing device for storing the toner liquid in which the toner is dispersed; and in the toner liquid, the developing member is disposed while facing the electrode surface of the electrode member and the developing surface with a minute gap therebetween. An electric field in which the toner is directed to the developing surface is formed between the holding portion for development to be held, the first region of the developing surface, and the electrode surface, and between the second region and the electrode surface. The toner is A first developing potential, a second developing potential, and a second developing potential are applied to the first region, the second region, and the electrode surface, respectively, so that an electric field toward the surface is formed or the magnitude of the electric field is zero. 3 a developing potential applying unit that applies a developing potential, and the transfer device includes a transfer container in which a nonpolar solvent is stored, and the developing surface and the object with a minute gap in the nonpolar solvent. The transfer member holding the developing member and the object while facing the transfer surface, and the toner between the first region of the development surface and the transfer surface. An electric field toward the developing surface is formed, and an electric field is formed between the second region and the transfer surface, and the toner is directed toward the developing surface, or the magnitude of the electric field is zero. The first region, the second region, and First transfer potential respectively to serial object, and a transfer potential applying unit that applies a second transfer potential and the third transfer potential.

  A tenth aspect of the present invention is the image forming system according to the ninth aspect, further comprising a fixing device that fixes the toner transferred onto the transfer surface by the transfer device to the transfer surface. The object is a transparent member having insulating properties, and the toner image formed on the transfer surface is a filter layer of a color filter.

  According to an eleventh aspect of the present invention, in the image forming system according to the tenth aspect, a black matrix is formed in advance on the transfer surface of the object.

  A twelfth aspect of the present invention is the image forming system according to the eleventh aspect, wherein the black matrix has conductivity or semiconductivity, and the transfer potential applying portion includes the black matrix and the development surface. A fourth transfer potential is applied to the black matrix so that an electric field is formed between the toner and the developing surface, or the electric field is zero.

  A thirteenth aspect of the present invention is the image forming system according to any one of the ninth to twelfth aspects, wherein the developing member is on one main surface of a plate-like conductive or semiconductive substrate. In addition, an electrode portion corresponding to the first region or the second region is formed of an electrically conductive material or a semiconductive material via an insulating layer.

  According to the present invention, a toner image corresponding to the first region of the developing surface of the developing member can be formed with high accuracy and easily on the transfer surface of the object.

  In the inventions of claims 2 and 10, a highly accurate color filter can be easily manufactured, and in the invention of claim 3, a color filter can be manufactured by repeatedly using one developing member.

  In the inventions of claims 5 and 12, a color filter with higher accuracy can be manufactured by using a black matrix, and in the inventions of claims 6 and 13, a developing member can be easily manufactured.

  FIG. 1 is a diagram showing a configuration of an image forming system 1 according to a first embodiment of the present invention. The image forming system 1 forms a toner image on a transparent glass substrate 9 having insulating properties, and fixes the toner image on the glass substrate 9, thereby providing a color filter for a flat display device such as a liquid crystal display device. It is for manufacturing. Actually, in the image forming system 1, a combination of apparatuses (developing apparatus 2, transfer apparatus 3, fixing apparatus 4 and first and second substrate transfer mechanisms 51, 52) described below is one image forming unit 10. The image forming system 1 includes an image forming unit for each of the three color toners of R (red), G (green), and B (blue). In FIG. 1, only the image forming unit 10 corresponding to one color is shown. Hereinafter, the image forming unit 10 shown in FIG. 1 will be described, but the image forming units corresponding to other colors have the same configuration. ing.

  An image forming unit 10 in FIG. 1 has a developing device 2 that forms a toner image on one main surface (hereinafter referred to as “developing surface”) of a plate-like developing member 6, and toner that adheres to the developing surface of the developing member 6. Is transferred to the transfer surface of the glass substrate 9 on which the black matrix is formed, and the toner on the glass substrate 9 is transferred to the transfer surface by irradiating the glass substrate 9 with light from a plurality of lamps 41 and heating it. The fixing device 4 for fixing, the first substrate transfer mechanism 51 for transferring the developing member 6 between the developing device 2 and the transfer device 3, and the glass substrate 9 between the transfer device 3 and the fixing device 4. A second substrate transfer mechanism 52 is provided. For example, the thickness of the glass substrate 9 is 0.3 to 0.7 millimeters (mm).

  The developing device 2 stores a toner liquid in which a toner of one color is dispersed in a solvent (carrier liquid) and a toner image is formed on the developing member 6 inside (hereinafter referred to as “developing device”). Container 21 "), a cleaning container 22 in which only the solvent of the toner liquid is stored and unnecessary toner on the developing member 6 immediately after the toner image formation is removed, and the developing container 21 and the cleaning container Each of 22 includes a substrate transport unit 23 in which a developing member 6 is disposed as a development processing unit 111 described later.

  The substrate transport unit 23 includes a unit gripping mechanism 231 and a unit for gripping the development processing unit 111 in which the developing member 6 and an electrode member described later are combined in an upright state so that the main surface of the developing member 6 is along the vertical direction. A unit elevating mechanism 232 for moving the gripping mechanism 231 in the vertical direction indicated by an arrow A1 in FIG. 1 to move the developing processing unit 111 into and out of the developing container 21 or the cleaning container 22; A unit moving mechanism 233 that moves the unit elevating mechanism 232 in the horizontal direction indicated by the arrow labeled A2 in FIG. 1 and arranges it above the developing container 21, the cleaning container 22, or the first substrate transfer mechanism 51. Is provided.

  The transfer device 3 is a container 31 (hereinafter referred to as “transfer container 31”) in which a nonpolar solvent is stored and a toner image on the developing member 6 is transferred to the glass substrate 9, and similarly nonpolar. A cleaning container 32 in which unnecessary toner is removed from the glass substrate 9 immediately after the solvent is stored and the toner image is transferred therein, and the transfer container 31 and the cleaning container 32 will be described later. The transfer processing unit 112 includes a substrate transport unit 33 in which the developing member 6 and the glass substrate 9 are disposed.

  The substrate transport unit 33 of the transfer device 3 has the same configuration as the substrate transport unit 23 of the developing device 2, and the transfer processing unit 112 in which the developing member 6 and the glass substrate 9 are combined is used as the main member of the developing member 6 and the glass substrate 9. The unit gripping mechanism 331 that grips in a state where the surface is upright along the vertical direction, the unit gripping mechanism 331 is moved in the vertical direction, and the transfer processing unit 112 is carried in and out of the transfer container 31 or the cleaning container 32. And a unit that moves the unit lifting mechanism 332 in the horizontal direction to be disposed above the first substrate transfer mechanism 51, the transfer container 31, the cleaning container 32, or the second substrate transfer mechanism 52. A moving mechanism 333 is provided. The details of other components of the transfer device 3 will be described later.

  The fixing device 4 includes a plurality of lamps 41 each extending in a direction perpendicular to the conveyance direction and arranged in parallel in a horizontal direction, and a reflector 42 is provided above the plurality of lamps 41. Below the plurality of lamps 41, a plurality of transport rollers 43 extending in a direction perpendicular to the transport direction are arranged in a horizontal direction, and a part of the transport rollers 43 rotates, whereby the second substrate transfer mechanism. The glass substrate 9 placed on the transport roller 43 is moved horizontally by 52 in a direction away from the second substrate transfer mechanism 52.

  When the first substrate transfer mechanism 51 forms a toner image on the developing surface of the developing member 6, the developing member 6 is combined with the electrode member to be described later as the developing unit 111, and then the developing unit 111 is erected. When transferring the toner image, the developing member 6 is combined with the glass substrate 9 as the transfer processing unit 112, and then the transfer processing unit 112 is erected. The second substrate transfer mechanism 52 receives the transfer processing unit 112 transported by the substrate transport unit 33, takes out only the glass substrate 9 from the transfer processing unit 112, and rotates the glass substrate 9 so that the main surface is along the horizontal direction. After being moved, it has a mechanism for placing it on the transport roller 43.

  FIG. 2 is a view showing the black matrix 81 of the glass substrate 9. As shown in FIG. 2, the black matrix 81 is formed in a lattice pattern on the transfer surface 91 of the glass substrate 9, and a plurality of transfer surfaces 91 of the glass substrate 9 are two-dimensionally arranged by the black matrix 81. Are divided into element regions 821 (actually, a large number of minute element regions 821). The black matrix 81 has an abutting portion 811 that is a rectangular region, and is a pattern in which the whole is continuous, for example, with a metal such as chromium or a resin containing carbon (also referred to as a resin matrix in this case). Formed as. The black matrix 81 formed of metal has conductivity, and the black matrix 81 formed of resin contains a lot of carbon to achieve a certain light shielding effect, and is formed of metal. Although the resistance value is higher than that in the case where it is applied, it has semiconductivity. As will be described later, in the transfer device 3, a uniform potential is applied to the entire black matrix 81 via the contact portion 811. On the glass substrate 9, predetermined alignment marks 812 are formed at the four corners on the transfer surface 91, and the alignment marks 812 are also continuous with the black matrix 81.

  In the glass substrate 9, a plurality of element regions 821 arranged in the vertical direction in FIG. 2 is defined as an element region row 822, and a plurality of element region rows 822 arranged every third on the right side from the leftmost element region row 822 a are, for example, R Corresponding to the color (for example, the R element region column adjacent to the right side of the element region column 822a is denoted by the reference numeral 822b in FIG. 2), and the right side of the plurality of element region columns 822 of the R color. A plurality of element region columns 822 adjacent to each other correspond to the G color, and a plurality of element region columns 822 adjacent to the right side of the plurality of element region columns 822 of the G color correspond to the B color.

  FIG. 3 is a plan view showing the developing member 6, and FIG. 4 is a cross-sectional view of the developing member 6 at the position of the arrow AA in FIG. 3. As shown in FIG. 4, the developing member 6 is provided with an insulating layer 62 on one main surface of a plate-like conductive substrate 61, and shows a predetermined pattern with a conductive material on the insulating layer 62. The electrode part 63 is formed. In addition, the base material 61 and the electrode part 63 may be formed with a semiconductive material.

  As shown with parallel oblique lines in FIG. 3, the shape of the electrode portion 63 is such that in the central region excluding the outer edge portion on the insulating layer 62 at a predetermined pitch in the vertical and horizontal directions in FIG. 3. Only a part of the plurality of arranged rectangular regions 641 is removed, and the whole is continuous. Specifically, each rectangular region 641 from which the conductive material has been removed has the same size as the element region 821 in the glass substrate 9 of FIG. 2, and the vertical pitch of the plurality of rectangular regions 641 in FIG. The pitch in the same direction of the plurality of element regions 821 is the same, and the pitch in the horizontal direction of the plurality of rectangular regions 641 is three times the pitch in the same direction of the plurality of element regions 821 in FIG. Further, the electrode portion 63 has a contact portion 631 that is a rectangular region, and alignment marks 632 formed at each of the four corners on the developing member 6. As will be described later, in the developing device 2 and the transfer device 3, a uniform potential is applied to the entire electrode portion 63 via the contact portion 631.

  FIG. 5 is a view showing the inside of the developing container 21 together with other components when the toner image is formed on the developing member 6 in the developing device 2.

  As shown in FIG. 5, a supply pipe 211 is provided below the developing container 21, and the supply pipe 211 is connected to the toner liquid tank 213 through a pump 212. The toner liquid tank 213 stores a toner liquid in which toner of one color (toner particles) is dispersed in a solvent (for example, ISOPAR (registered trademark)), and the toner liquid tank is driven by driving the pump 212. A toner liquid is supplied from the development container 213 into the developing container 21, and a certain amount of toner liquid is stored in the developing container 21. A discharge pipe 214 connected to a pump 215 is also provided below the developing container 21, and the toner liquid in the developing container 21 is passed by the pump 215 through a filter (not shown) as needed. Returned to

  In the developing device 2, when a toner image is formed on the developing member 6 (that is, development is performed), the plate-like electrode member 24 and the developing member 6 are moved by the unit gripping mechanism 231 as shown in FIG. The toner liquid in the developing container 21 is held in parallel with each other. The electrode member 24 has a conductive layer 242 formed on one main surface of an insulating base material 241. The surface of the conductive layer 242 of the electrode member 24 (hereinafter referred to as "electrode surface 240"). Is opposed to the developing surface of the developing member 6 (that is, the surface on the electrode part 63 side) with a small gap. Actually, spacers 291 having insulating properties are provided between the electrode member 24 and the developing member 6 in FIG. 5 at the upper and lower portions, respectively, and the distance between the electrode member 24 and the developing member 6 is 500, for example. The distance between the electrode member 24 and the developing member 6 is greatly illustrated in FIG. 5. The developing member 6, the electrode member 24, and the two spacers 291 are integrally combined as a developing unit 111, and the developing unit 111 is held by the unit holding mechanism 231 and supported from above the developing container 21. The

  Voltage sources 251, 252, and 253 of the developing potential applying unit 25 are connected to the base member 61 and the electrode unit 63 of the developing member 6 and the conductive layer 242 of the electrode member 24, respectively. When a toner image is formed on the developing member 6, a predetermined potential is applied to the base 61, the electrode part 63, and the conductive layer 242 by the voltage sources 251 to 253.

  The cleaning container 22 in FIG. 1 with the development processing unit 111 disposed therein has the same configuration as that in FIG. 5 except that only the solvent of the toner liquid is stored, and when the developing member 6 described later is cleaned. In the state where the development processing unit 111 is connected to the voltage sources 251 to 253, the substrate transport unit 23 is immersed in the solvent in the cleaning container 22.

  FIG. 6 is a view showing the inside of the transfer container 31 when the toner image is transferred onto the glass substrate 9 in the transfer device 3 together with other configurations.

  Also in the transfer device 3 shown in FIG. 6, similarly to the developing device 2 in FIG. 5, a supply pipe 311 is provided below the transfer container 31, and the supply pipe 311 is connected to the solvent tank 313 via the pump 312. The In the solvent tank 313, a nonpolar solvent (for example, the same solvent as the toner liquid in the developing container 21, hereinafter simply referred to as “solvent”) is stored, and the pump 312 is driven. As a result, the solvent is supplied from the solvent tank 313 into the transfer container 31, and a certain amount of solvent is stored in the transfer container 31. A discharge pipe 314 connected to a pump 315 is also provided below the transfer container 31, and the solvent in the transfer container 31 is returned to the solvent tank 313 via a filter (not shown) as needed. It is.

  In the solvent in the transfer container 31 at the time of transfer, a suction plate 34 formed of a conductive material or a semiconductive material and having a plurality of minute suction holes on one main surface is attached to the developing member 6. They are arranged parallel to and upright. An external pump 341 is connected to the plurality of suction holes of the suction plate 34, and the main surface on the developing member 6 side has a planar accuracy within 50 μm, for example. The suction plate 34 holds the main surface of the glass substrate 9 opposite to the black matrix 81 by suction suction. Between the suction plate 34 and the developing member 6, an insulating spacer 391 is provided at each of the upper part and the lower part, and the transfer surface 91 of the glass substrate 9 held on the suction plate 34 and the development surface of the developing member 6. Is kept constant at a very small width (in FIG. 6, the distance between the transferred surface 91 of the glass substrate 9 and the developing surface of the developing member 6 is greatly illustrated). The developing member 6, the glass substrate 9, the suction plate 34, and the two spacers 391 are integrally combined as a transfer processing unit 112, and the transfer processing unit 112 is gripped by the unit gripping mechanism 331 from above the transfer container 31. Supported. As described above, when the toner image is transferred to the glass substrate 9, the glass substrate 9 and the developing member 6 are held by the unit gripping mechanism 331 while the transfer surface 91 and the developing surface are opposed to each other with a minute gap in the solvent. The

  Voltage sources 351, 352, 353, and 354 of the transfer potential applying unit 35 are connected to the base member 61 and the electrode unit 63 of the developing member 6, the suction plate 34, and the black matrix 81 of the glass substrate 9, respectively. When the toner image is transferred onto the glass substrate 9, a predetermined potential is applied to the base 61, the electrode unit 63, the suction plate 34, and the black matrix 81 by the voltage sources 351 to 354.

  The cleaning container 32 of FIG. 1 in a state where the transfer processing unit 112 is disposed inside has the same configuration as that of FIG. 6, and the transfer processing unit 112 is connected to the voltage sources 351 to 354 when cleaning the glass substrate 9 described later. In the connected state, the substrate transport unit 33 is immersed in the solvent in the cleaning container 32.

  Next, a process in which the image forming system 1 manufactures a color filter will be described with reference to FIG. In the image forming system 1 of FIG. 1, first, in the first substrate transfer mechanism 51, the electrode member 24 and the developing member 6 are combined via two spacers 291 so that the electrode surface 240 and the developing surface are opposed to each other. The development processing unit 111 is configured (see FIG. 5). Subsequently, the development processing unit 111 is held in an upright state by the unit gripping mechanism 231 of FIG. 1, the development processing unit 111 is lifted by the unit lifting mechanism 232, and the development processing unit 111 is developed by the unit moving mechanism 233. Move upwards of 21. Then, the development processing unit 111 is lowered and immersed in the toner liquid in which the R color toner in the developing container 21 is dispersed (step S11). As a result, in the toner liquid in the developing container 21, the electrode member 24 is disposed with its normal line oriented in the horizontal direction, and the developing member 6 makes the developing surface face the electrode surface 240 of the electrode member 24. It arrange | positions in parallel with the electrode member 24 and will be in the state shown in FIG.

  When the electrode member 24 and the developing member 6 are arranged in the developing container 21, a ground potential (0 V) is applied to the base 61 of the developing member 6 by the developing potential applying unit 25, and (+650) V is applied to the electrode unit 63. Is applied, and (+500) V is applied to the conductive layer 242 of the electrode member 24 (step S12).

  FIG. 8 is a diagram for explaining the direction of the electric field formed between the electrode member 24 and the developing member 6. In FIG. 8, toner particles are indicated by circles, voltage sources 251 to 253 are indicated by circuit symbols, and the electrode member 24 and the developing member 6 when viewed from the liquid surface side of the toner liquid in the developing container 21. (The same applies to FIGS. 9, 12 and 14 described later).

  At this time, the rectangular area 641 on the development surface sandwiched between the conductive layer 242 of the electrode member 24 and the base material 61 via the toner liquid and the insulating layer 62 corresponds to the respective electrostatic capacities of the toner liquid and the insulating layer 62. Thus, the potential is between the potential of the conductive layer 242 and the potential of the substrate 61. As described above, the development potential applying unit 25 applies a potential directly or indirectly to the rectangular region 641 and the electrode unit 63 on the development surface of the developing member 6 and the electrode surface 240 of the electrode member 24. As a result, an electric field is formed in the minute gap (gap filled with the toner liquid) between the electrode member 24 and the developing member 6. To be precise, the developing member 6 generates the same potential as that of the rectangular region 641 in the outer edge portion of the insulating layer 62 in addition to the rectangular region 641 (see FIG. 3). 9 corresponds to a region outside the black matrix 81 (that is, a region not used as a color filter), and is therefore ignored in the following description.

  In the toner liquid, the toner is positively charged, and the direction from the electrode member 24 toward the developing member 6 (the direction indicated by the arrow labeled A3 in FIG. 8) is positive, and the electrode surface of the electrode member 24 A positive electric field is formed between 240 and the rectangular region 641 of the developing member 6, and a negative electric field is formed between the electrode surface 240 and the electrode portion 63 of the developing member 6. That is, between the electrode surface 240 of the electrode member 24 and the rectangular region 641 of the developing member 6, the toner moves from the electrode surface 240 side to the developing surface as indicated by an arrow denoted by reference numeral 71 in FIG. An electric field (electrophoresis) is formed, and the toner flows from the developing surface side to the electrode surface 240 between the electrode surface 240 and the electrode portion 63 of the developing member 6 as indicated by an arrow denoted by reference numeral 72 in FIG. An electric field toward is formed. As a result, R toner adheres to the rectangular region 641 of the developing member 6 and an R toner image is formed. At this time, since toner of an amount corresponding to a certain potential difference from the electrode surface 240 adheres at each position of the rectangular region 641, the toner thickness becomes substantially uniform on the developing surface. Note that the toner also adheres to a region on the electrode surface 240 that accurately faces the electrode portion 63 of the developing member 6.

  When the R toner image is formed on the developing member 6, the developing potential applying unit 25 continues to apply the potential to the base member 61 and the electrode unit 63 of the developing member 6 and the conductive layer 242 of the electrode member 24. The development processing unit 111 moves up and is taken out from the developing container 21 shown in FIG. Subsequently, the development processing unit 111 moves to above the cleaning container 22 and then descends and is immersed in the solvent in the cleaning container 22.

  At this time, even in the solvent in the cleaning container 22, the potentials of the rectangular region 641 of the developing member 6, the electrode portion 63, and the electrode surface 240 of the electrode member 24 in the developing container 21 are maintained. Therefore, even if unnecessary toner adheres to an area other than the rectangular area 641 on the developing surface of the developing member 6 when the developing unit 111 is pulled up from the developing container 21, the solvent in the cleaning container 22 In the area, an electric field is formed in which the toner is directed from the developing surface side to the electrode surface 240, whereby unnecessary toner is removed from the developing surface (step S13). That is, the developing member 6 on which the toner image is formed is cleaned in the cleaning container 22. On the other hand, in the rectangular area 641, an electric field is formed in which the toner is directed from the electrode surface 240 to the development surface, so that the toner remains attached. If necessary, the development processing unit 111 may be swung in the cleaning container 22 (the same applies to an operation of immersing a transfer processing unit 112 described later in the cleaning container 32).

  When the removal of unnecessary toner on the developing member 6 is completed, the development processing unit 111 is lifted by the unit lifting mechanism 232 in FIG. 1 and taken out from the cleaning container 22 while the potential application by the development potential applying unit 25 is continued. It is. Then, after the development processing unit 111 moves upward of the first substrate transfer mechanism 51, the development processing unit 111 is lowered and transferred to the first substrate transfer mechanism 51, and a liquid ( In the absence of the solvent and toner liquid), the application of the potential by the development potential applying unit 25 is stopped, the development processing unit 111 is disassembled, and the developing member 6 having the toner attached to the rectangular region 641 is taken out. The electrode member 24 is separately cleaned to remove the adhered toner, and the cleaned electrode member 24 is used for the next formation of an R toner image on the developing member 6.

  In the image forming system 1 of FIG. 1, the glass substrate 9 on which the black matrix 81 is formed on the transfer surface 91 is prepared by being previously loaded into the first substrate transfer mechanism 51. Then, the developing member 6 and the glass substrate 9 are combined through two spacers 391 so that the developing surface and the transfer surface 91 face each other, thereby forming the transfer processing unit 112 (see FIG. 6). At this time, using the alignment mark 812 on the glass substrate 9 and the alignment mark 632 on the developing member 6 (see FIGS. 2 and 3), the glass substrate 9 and the developing member 6 are accurately aligned, and the developing member The six rectangular regions 641 accurately face the element region 821 corresponding to the R color of the glass substrate 9. Subsequently, the transfer processing unit 112 is held in an upright state by the unit gripping mechanism 331 in FIG. 1 and is lifted by the unit lifting mechanism 332, and the transfer processing unit 112 is moved above the transfer container 31 by the unit moving mechanism 333. Moving. Then, the transfer processing unit 112 is lowered and immersed in the solvent in the transfer container 31 (step S14). Thereby, in the solvent in the transfer container 31, the developing member 6 is arranged with its normal line oriented in the horizontal direction, and the glass substrate 9 faces the transferred surface 91 to the developing surface of the developing member 6. It arrange | positions in parallel with the developing member 6, and will be in the state shown in FIG.

  When the glass substrate 9 and the developing member 6 are disposed in the transfer container 31, (+850) V is applied to the base 61 of the developing member 6 by the transfer potential applying unit 35, and the electrode unit 63 and the suction plate 34 are grounded. A potential (0 V) is applied, and (+1000) V is applied to the black matrix 81 of the glass substrate 9 (step S15).

  FIG. 9 is a view for explaining the direction of the electric field formed between the glass substrate 9 and the developing member 6. Each of the rectangular region 641 on the development surface sandwiched between the suction plate 34 and the base material 61 via the glass substrate 9, the toner liquid and the insulating layer 62, and the element region 821 of the transferred surface 91 facing the rectangular region 641, Similarly to the case of forming a toner image on the developing member 6, the potential applied to each of the suction plate 34 and the base 61 and the respective electrostatic capacities of the glass substrate 9, the toner liquid and the insulating layer 62. The potential is determined. Actually, both the rectangular region 641 and the element region 821 facing the rectangular region 641 are between the potential of the suction plate 34 and the substrate 61, and the rectangular region 641 has a base material higher than the corresponding element region 821. The potential is close to 61. Note that the area of the transfer surface 91 facing the electrode portion 63 is similarly (0 V) because the ground potential is applied to each of the suction plate 34 and the electrode portion 63. As described above, the transfer potential applying section 35 directly or indirectly applies to the rectangular area 641 and the electrode section 63 on the developing surface of the developing member 6, the transfer surface 91 of the glass substrate 9, and the black matrix 81. By applying a potential, an electric field is formed in the minute gap (gap filled with the nonpolar solvent) between the glass substrate 9 and the developing member 6.

  Specifically, the direction from the glass substrate 9 toward the developing member 6 (the direction indicated by the arrow labeled A4 in FIG. 9) is positive, and the rectangular region 641 of the developing member 6 and the rectangular region 641 are opposed to each other. A negative electric field is formed between the element region 821 on the transferred surface 91 and a positive electric field is formed between the electrode portion 63 of the developing member 6 and the black matrix 81, and the electrode of the developing member 6 An electric field having a magnitude of 0 is formed between the portion 63 and the transfer surface 91 of the glass substrate 9. That is, between the rectangular area 641 of the developing member 6 and the transfer surface 91 of the glass substrate 9, toner is transferred from the development surface side to the transfer surface 91 as indicated by an arrow denoted by reference numeral 73 in FIG. 9. An electric field traveling (electrophoresing) is formed, and toner is transferred from the transfer surface 91 side between the electrode portion 63 of the developing member 6 and the black matrix 81 as indicated by an arrow denoted by reference numeral 74 in FIG. An electric field directed toward the developing surface is formed, and an electric field for moving the toner is not formed between the electrode portion 63 of the developing member 6 and the transfer surface 91. As a result, the R toner adheres to the element region 821 of the glass substrate 9 facing the rectangular region 641, and the R toner image is transferred.

  At this time, the toner existing in the transfer container 31 is only the toner adhering to the rectangular area 641 of the developing member 6. Temporarily, the glass substrate is drawn from an area other than the rectangular area 641 on the developing surface of the developing member 6. Even when an electric field directed to the toner is formed in a region other than the element region 821 corresponding to the R color on the nine transferred surfaces 91, there is no toner affected by the electric field. It is possible to prevent toner from adhering to an unnecessary area other than the element area 821 corresponding to the R color on the transfer surface 91. In addition, the toner adhering on the rectangular area 641 of the developing member 6 is in a high concentration state, and the toner on the rectangular area 641 is likely to move almost integrally due to the condensing force between the toners. And an electric field is formed between the black matrix 81 and the developing surface of the developing member 6 to suppress the two-dimensional spread of the toner (spread in a direction perpendicular to the direction of the electric field) (that is, By forming an electrical wall), the toner having a uniform thickness on the rectangular area 641 of the developing member 6 is transferred to the opposing element area 821 on the transfer surface 91 almost as it is, and the glass The toner thickness on the substrate 9 is also uniform.

  When the toner image of R is transferred, the transfer processing unit 112 continues to apply the potential to the base member 61 and the electrode unit 63, the suction plate 34, and the black matrix 81 of the developing member 6 by the transfer potential applying unit 35. Ascended and removed from the transfer container 31 of FIG. Subsequently, the transfer processing unit 112 moves above the cleaning container 32 and then descends and is immersed in the solvent in the cleaning container 32 and shaken.

  At this time, even in the solvent in the cleaning container 32, the potentials of the base member 61 and the electrode part 63, the suction plate 34, and the black matrix 81 of the developing member 6 in the transfer container 31 are maintained. Accordingly, when the transfer processing unit 112 is pulled up from the transfer container 31, it is assumed that unnecessary toner adheres to an area other than the element area 821 corresponding to the R color on the transfer surface 91 of the glass substrate 9. However, in the solvent in the cleaning container 32, an electric field is formed in which the toner is directed from the transfer surface 91 side to the development surface, or the electric field is reduced to 0 so that unnecessary toner is covered. It is removed from the transfer surface 91 (step S16). That is, the glass substrate 9 on which the toner image is transferred is cleaned in the cleaning container 32.

  When the removal of unnecessary toner on the glass substrate 9 is completed, the transfer processing unit 112 is raised by the unit lifting mechanism 332 in FIG. 1 while being applied with the potential by the transfer potential applying unit 35 and is taken out from the cleaning container 32. It is. Then, after the transfer processing unit 112 has moved above the second substrate transfer mechanism 52, the transfer processing unit 112 is lowered and transferred to the second substrate transfer mechanism 52, and a liquid ( In the state where no solvent is present, the application of the potential by the transfer potential applying unit 35 is stopped, the transfer processing unit 112 is disassembled, and the glass substrate 9 onto which the toner has been transferred is removed. In addition, after the developing member 6 is separately washed, the developing surface is discharged by, for example, being immersed in ethanol stored in a grounded conductive container or using an AC corona discharger, and the next R This is used when forming a toner image.

  In the second substrate transfer mechanism 52, only the glass substrate 9 is placed on the conveyance roller 43 of the fixing device 4 and conveyed to the inside of the fixing device 4, for example, heated at 230 to 250 ° C. for 30 to 60 seconds. Then, the toner adhered on the R element region 821 of the glass substrate 9 is melted and fixed on the transfer surface 91 (step S17). As a result, R pixel elements are formed in the R element region 821 of the plurality of element regions 821 on the transfer surface 91 of the glass substrate 9. Thereafter, the glass substrate 9 is transferred to the next color (for example, G) image forming unit (second substrate transfer mechanism thereof) after the transfer surface 91 is neutralized using, for example, an AC corona discharger. Be transported.

  Subsequently, by repeating the above steps S11 to S17 in the G image forming unit (step S18), a G toner image is formed on the developing member having a rectangular region corresponding to the G color, and the toner image Is transferred and fixed to the glass substrate 9 on which the R color pixel elements are formed, and then the above steps S11 to S17 are repeated in the B image forming unit (step S18), thereby corresponding to the B color. A toner image of B is formed on a developing member having a rectangular area, and the toner image is transferred and fixed to a glass substrate 9 on which pixel elements of R and G colors are formed.

  As a result, as shown in FIG. 10, a plurality of pixel elements 821R of R color, a plurality of pixel elements 821G of G color, and a plurality of pixel elements 821B of B color are formed on the transfer surface 91 of the glass substrate 9. Then, a set of these pixel elements 821R, 821G, and 821B is used as a filter layer 82, and the color filter 8 is completed. In the color filter 8, a set of one pixel element 821R, one pixel element 821G, and one pixel element 821B arranged in the horizontal direction in FIG. 10 is defined as one pixel, and a plurality of pixels are two-dimensionally arranged. When the color filter 8 is used in a liquid crystal display device, a transparent insulating film (so-called overcoat) that entirely covers the filter layer 82 and the black matrix 81 is formed by another device, and is formed on the insulating film. A pattern of a transparent conductive layer (for example, ITO) is separately formed.

  As described above, in the image forming system 1 of FIG. 1, the rectangular region 641 corresponding to the toner image of the developing member 6 and the electrode surface of the electrode member 24 in the toner liquid in the developing container 21 of the developing device 2. An electric field in which the toner moves toward the development surface is formed between the electrode portion 240 and the electrode surface 240, which is a region other than the rectangular region 641 on the development surface. By forming a moving electric field, a toner image is accurately formed on the developing surface of the developing member 6. In the solvent in the transfer container 31 of the transfer device 3, the rectangular region 641 of the developing member 6 and the glass substrate 9 are formed. An electric field in which the toner moves toward the transfer surface 91 is formed between the electrode surface 63 and the transfer surface 91, and the potential difference between the electrode portion 63 and the transfer surface 91 is set to 0. Toner image There is accurately transferred to the transferred surface 91 of the glass substrate 9. As a result, it is possible to easily and accurately form a toner image corresponding to the rectangular area 641 of the developing surface of the developing member 6 on the transfer surface 91 of the glass substrate 9. Then, toner image formation (development) on the developing member, transfer of the toner image from the developing member to the glass substrate 9, and fixing of the toner image on the glass substrate 9 to the transfer surface 91 change the color of the toner. By repeating while changing, a highly accurate color filter can be easily manufactured.

  Next, a second embodiment of the present invention will be described. FIG. 11 is a plan view showing the developing member 6a used in the second embodiment. In the electrode portion 63a of the developing member 6a shown in FIG. 11, the plurality of rectangular electrodes 633 are formed in the insulating layer of the base member 61 at the same pitch as the plurality of rectangular regions 641 in FIG. Each rectangular electrode 633 is arranged on 62 and has the same size as the element region 821 in the glass substrate 9 of FIG. In addition, in the electrode portion 63a, two rectangular electrodes 633 adjacent to each other in the vertical direction are connected via a micro-connecting portion 634, and a plurality of rectangular electrodes (in FIG. The rectangular electrodes denoted by reference numeral 633a are connected to each other through a connecting portion 635, and the connecting portion 635 is provided with a contact portion 631 of a rectangular region. Thus, the electrode part 63a on the developing member 6a has a continuous pattern as a whole, and has a potential different from that of other areas on the insulating layer 62 (hereinafter referred to as “non-electrode area”) with respect to the electrode part 63a. Can be granted. In the developing member 6a, three alignment marks 691a, 691b, and 691c are formed in the four corners in the horizontal direction, and the alignment marks 691a to 691c transfer the toner images of the corresponding colors onto the glass substrate 9. In addition, it is used for alignment with the glass substrate 9. Note that the alignment marks 691a to 691c in the present embodiment are isolated from the electrode portion 63a.

  When the color filter is manufactured using the developing member 6a in the image forming system 1, the electrode member 24 and the developing member 6a in the first substrate transfer mechanism 51 are arranged so that the electrode surface 240 and the developing surface face each other. In combination, the development processing unit 111 is configured and immersed in the toner liquid in which the R color toner is dispersed in an upright state (FIG. 7: step S11). Then, (+650) V is applied to the substrate 61 of the developing member 6 by the developing potential applying section 25 shown in FIG. 5, a ground potential is applied to the electrode section 63 a, and (+500) V is applied to the conductive layer 242 of the electrode member 24. Is given (step S12).

  FIG. 12 is a diagram for explaining the direction of the electric field formed between the electrode member 24 and the developing member 6a. Due to the application of the potential by the development potential applying unit 25, the region where the electrode portion 63a does not exist (that is, the non-electrode region) on the development surface of the developing member 6a is similar to the rectangular region 641 in FIG. This is a potential between the potential and the potential of the substrate 61. As described above, the potential is applied directly or indirectly to the region of the electrode portion 63a and the non-electrode region on the developing surface of the developing member 6a and the electrode surface 240 of the electrode member 24, whereby the electrode member 24 and An electric field is formed in a minute gap between the developing member 6 (a gap filled with the toner liquid).

  Specifically, also in the present embodiment, the toner is positively charged in the toner liquid, and is indicated by a direction from the electrode member 24 toward the developing member 6a (indicated by an arrow labeled A3 in FIG. 12). (Direction) is positive, a positive electric field is formed between the electrode surface 240 of the electrode member 24 and the electrode portion 63a of the developing member 6a, and negative between the electrode surface 240 and the non-electrode region of the developing member 6a. Is formed. That is, between the electrode surface 240 of the electrode member 24 and the electrode portion 63a of the developing member 6a, an electric field where the toner is directed from the electrode surface 240 side to the developing surface as indicated by an arrow denoted by reference numeral 75 in FIG. An electric field is formed between the electrode surface 240 and the non-electrode region of the developing member 6a so that the toner moves from the developing surface side to the electrode surface 240 as indicated by an arrow denoted by reference numeral 76 in FIG. Is done. As a result, the R toner adheres to the electrode portion 63a of the developing member 6a with a uniform thickness, and an R toner image is formed on the developing surface. At this time, the toner also adheres to a region on the electrode surface 240 that is exactly opposite to the non-electrode region of the developing member 6a, and the toner is placed on the alignment marks 691a to 691c (see FIG. 11) on the developing surface of the developing member 6a. Does not adhere.

  When the R toner image is formed on the developing member 6a, the developing potential applying unit 25 continues to apply the potential to the base member 61 and the electrode unit 63a of the developing member 6a and the conductive layer 242 of the electrode member 24. The development processing unit 111 is immersed in the solvent in the cleaning container 22, and unnecessary toner on the developing member 6a is removed (step S13). Then, the development processing unit 111 is disassembled by the first substrate transfer mechanism 51, and the developing member 6a in which the toner adheres to the electrode portion 63a is taken out.

  In the first substrate transfer mechanism 51, the developing member 6a and the glass substrate 9 are combined so that the developing surface and the transferred surface 91 face each other, thereby forming the transfer processing unit 112. At this time, as shown in FIG. 13, the alignment mark 812 of the glass substrate 9 (shown by a thin line in FIG. 13) and the R color of the developing member 6a (shown by a thick line in FIG. 13). By aligning the glass substrate 9 and the developing member 6a so that the corresponding alignment mark 691a overlaps in the vertical direction and the horizontal direction in FIG. 13, the rectangular electrode 633 in the electrode portion 63a of the developing member 6a is formed. It faces the element region 821 corresponding to the color R of the glass substrate 9 accurately. Then, the transfer processing unit 112 is immersed in the solvent in the transfer container 31 in an upright state (step S14).

  When the transfer processing unit 112 is disposed in the transfer container 31, a ground potential is applied to the base member 61 and the suction plate 34 of the developing member 6a by the transfer potential applying unit 35, and (+850) V is applied to the electrode unit 63a. Then, (+1000) V is applied to the black matrix 81 of the glass substrate 9 (step S15).

  FIG. 14 is a diagram for explaining the direction of the electric field formed between the glass substrate 9 and the developing member 6a. The element region 821 on the transfer surface 91 of the glass substrate 9 facing the rectangular electrode 633 of the developing member 6a is applied between the potential of the electrode portion 63a and the potential of the suction plate 34 by applying the potential by the transfer potential applying portion 35. Since each of the non-electrode area of the developing member 6a and the area on the transferred surface 91 that faces the non-electrode area is given a ground potential to the suction plate 34 and the base material 61, the potential is almost (0V). (However, the influence of the potential applied to the black matrix 81 is ignored). As described above, the potential is applied directly or indirectly to the region of the electrode portion 63 a and the non-electrode region on the developing surface of the developing member 6, the transfer surface 91 of the glass substrate 9, and the black matrix 81. An electric field is formed in the minute gap (gap filled with the nonpolar solvent) between the glass substrate 9 and the developing member 6a.

  Specifically, the transfer surface 91 of the glass substrate 9 and the electrodes of the developing member 6a are defined with the direction from the glass substrate 9 toward the developing member 6a (the direction indicated by the arrow labeled A4 in FIG. 14) being positive. A negative electric field is formed between the rectangular electrode 633 of the portion 63a, a positive electric field is formed between the black matrix 81 and the non-electrode region of the developing member 6a, and the transferred surface 91 of the glass substrate 9 The magnitude of the electric field between the developing member 6a and the non-electrode region is zero. In this way, toner is transferred from the developing surface side between the transfer surface 91 of the glass substrate 9 and the rectangular electrode 633 of the developing member 6a as indicated by the arrow denoted by reference numeral 77 in FIG. As shown by the arrow with a reference numeral 78 in FIG. 14, toner is transferred from the transfer surface 91 side to the development surface between the black matrix 81 and the non-electrode region of the development member 6. And an electric field for moving the toner is not formed between the transfer surface 91 and the non-electrode region of the developing member 6a. Therefore, the R toner adheres to the element region 821 of the glass substrate 9 facing the rectangular electrode 633 with a uniform thickness, and the R toner image is transferred. Further, the portion of the electrode portion 63a other than the rectangular electrode 633 is opposed to the black matrix 81. However, a positive electric field is formed between the portion and the black matrix 81 so that the toner moves toward the development surface. No toner adheres to 81.

  When the toner image of R is transferred, the transfer processing unit 112 continues to apply the potential to the base member 61 and the electrode portion 63a of the developing member 6a, the suction plate 34, and the black matrix 81 by the transfer potential applying unit 35. It is immersed in the solvent in the cleaning container 32, and unnecessary toner on the glass substrate 9 is removed (step S16).

  Thereafter, in the second substrate transfer mechanism 52, the glass substrate 9 is taken out from the transfer processing unit 112, and the toner attached on the R element region 821 of the glass substrate 9 is fixed on the transfer surface 91 by the fixing device 4. (Step S17). The glass substrate 9 is transported to the G image forming unit after the transfer surface 91 has been neutralized using an AC corona discharger.

  In the G image forming unit, steps S11 to S17 are repeated using the same developing member 6a used in the R image forming unit (step S18). Here, in the development processing in the G image forming unit, a G toner image is formed on the developing member 6 a, and then the developing member 6 a having the G toner adhered to the electrode portion 63 a is combined with the glass substrate 9. The transfer processing unit 112 is assembled. At this time, as shown in FIG. 15, the alignment mark 812 of the glass substrate 9 (shown by a thin line in FIG. 15) and the G color of the developing member 6a (shown by a thick line in FIG. 15). By aligning the glass substrate 9 and the developing member 6a so that the corresponding alignment mark 691b overlaps in the vertical direction and the horizontal direction in FIG. 15, the rectangular electrode 633 in the electrode portion 63a of the developing member 6a is formed. It faces the element region 821 corresponding to the color G of the glass substrate 9 accurately. In this way, when the G toner image is transferred, the relative position of the transferred surface 91 of the glass substrate 9 with respect to the developing surface of the developing member 6a is (manufactured from the position when the R toner image is transferred). It is changed along the development surface in accordance with the color arrangement of the filter layer in the color filter. Then, the transfer processing unit 112 is immersed in the transfer container 31, and the toner image on the developing member 6 a is transferred to the glass substrate 9 on which the R pixel elements are formed, and then fixed to the transfer surface 91. The

  Subsequently, steps S11 to S17 are repeated using the developing member 6a of FIG. 11 in the image forming unit for B (step S18). At this time, after the toner image of B is formed on the developing member 6a, the transfer processing unit 112 is assembled using the alignment mark 691c corresponding to the color B of the developing member 6a, and the toner image on the developing member 6a becomes R Then, it is transferred to the glass substrate 9 on which the pixel elements of G and G are formed and fixed to the transfer surface 91. In this way, the filter layer is formed on the glass substrate 9, and the color filter manufacturing process in the image forming system 1 is completed.

  As described above, in the image forming system 1 according to the second embodiment, the toner is directed toward the developing surface between the electrode portion 63a of the developing member 6a and the electrode surface 240 of the electrode member 24 in the toner liquid. Is generated, and an electric field in which the toner moves toward the electrode surface 240 is formed between the non-electrode region, which is a region other than the electrode portion 63a on the development surface, and the electrode surface 240, thereby developing the image. A toner image is accurately formed on the developing surface of the member 6a. In the solvent in the transfer container 31 of the transfer device 3, the rectangular electrode 633 of the electrode portion 63a of the developing member 6a and the transfer surface 91 of the glass substrate 9 are formed. In the meantime, an electric field in which the toner moves toward the transfer surface 91 is formed, and the potential difference between the non-electrode region and the transfer surface 91 is set to 0, so that the toner image on the developing member 6a is transferred to the glass substrate 9. of It is accurately transferred to the transfer surface 91. As a result, it is possible to easily and accurately form a toner image corresponding to the rectangular electrode 633 of the developing member 6a on the transfer surface 91 of the glass substrate 9. As a result, a highly accurate color filter can be easily manufactured. can do.

  Further, in the image forming system 1, the same developing member 6a is used when steps S11 to S17 are repeated while changing the toner color in step S18 of FIG. 7, and the developing member 6a and the glass substrate 9 are transferred to the transfer container 31. Each time step S14 is repeated in the solvent, the relative position of the transferred surface 91 with respect to the developing surface is changed along the developing surface in accordance with the color arrangement of the filter layers of the color filter. Thereby, it is possible to manufacture a color filter by repeatedly using one developing member 6a, and it is realized to reduce the cost related to the manufacture of the color filter. Note that, in the first embodiment, similarly to the second embodiment, the same developing member 6 may be used repeatedly to produce a color filter. In the second embodiment, the first embodiment Similarly to the form, a developing member 6a for each color may be used.

  By the way, in the image forming system 1 described above, when a toner image is formed on the developing members 6 and 6a, a toner image (final toner image formed on the glass substrate 9) is handled on the developing surface. The region (the developing member 6 in FIG. 3 is a rectangular region 641, the developing member 6 a in FIG. 11 is the rectangular electrode 633 of the electrode portion 63 a, and hereinafter referred to as “first region”) and the electrode surface 240 of the electrode member 24. An electric field in which the toner moves toward the developing surface is formed between the first region and the region other than the first region (the electrode member 63 in the developing member 6 in FIG. 3 and the developing member 6a in FIG. 11). A non-electrode region, hereinafter referred to as a “second region”) and the electrode surface 240, an electric field that moves the toner toward the electrode surface 240 is formed, so that the toner adheres to the first region. While letting Although the toner is prevented from adhering to the two areas, the potential difference between the second area and the electrode surface 240 is zero, so that the electric field is reduced to zero and the toner adheres to the second area. May be prevented.

  As described above, from the viewpoint of accurately forming a toner image on the developing members 6 and 6a in the toner liquid, the first area corresponding to the toner image on the developing surface of the developing member and the first area on the developing surface. The second region which is a region other than the first region is set as an electrically discontinuous region, and is applied to the first region and the second region of the developing member and the electrode surface 240 of the electrode member 24 by the developing potential applying unit 25, respectively. The first developing potential, the second developing potential, and the third developing potential are set as the first developing potential, the second developing potential, and the third developing potential, and the polarity of the toner in the toner liquid is positive (first developing potential <third developing potential ≦ second developing potential). When the toner polarity in the toner liquid is negative and (first developing potential> third developing potential ≧ second developing potential) is satisfied, the first region of the developing surface and the electrode member 24 Between the electrode surface 240 An electric field is formed in which the toner is directed toward the developing surface, and an electric field is formed in which the toner is directed toward the electrode surface 240 between the second region and the electrode surface 240, or the magnitude of the electric field is zero. Is required. In addition, when the developing unit 111 is moved from the developing container 21 to the cleaning container 22, the toner on the developing surface of the developing members 6 and 6a is securely held with respect to the polarity of the toner. It is preferable that the polarity of the developing potential is opposite, or the first developing potential is a ground potential.

  In the image forming system 1, the spacer 391 in the transfer processing unit 112 is extremely thin, and the width of the minute gap between the developing members 6 and 6a and the glass substrate 9 is extremely small (for example, adjacent to each other on the glass substrate 9). In other words, the toner adhering to the first area of the development surface is not applied to the black matrix 81 even if the application of a potential to the black matrix 81 is omitted. The possibility of spreading to a region other than the corresponding element region 821 is low, and even if it slightly expands, it adheres to the portion of the black matrix 81 surrounding the element region 821 on the glass substrate 9 corresponding to the first region. For this reason, such toner does not significantly affect the characteristics of the color filter. As described above, depending on various conditions at the time of transferring the toner image, even when the application of the potential to the black matrix 81 by the transfer potential applying unit 35 is omitted, a color filter with a certain accuracy can be manufactured. . Further, when the toner image is transferred from the developing members 6 and 6a to the glass substrate 9, the second region of the developing members 6 and 6a and the glass substrate 9 are formed in the same manner as when the toner image is formed on the developing members 6 and 6a. By forming an electric field in which the toner moves toward the development surface between the transfer surface 91 and the transfer surface 91, it is possible to prevent the toner from adhering to a region facing the second region on the transfer surface. .

  As described above, from the viewpoint of accurately transferring the toner image on the developing member to the glass substrate 9 in the nonpolar solvent, the first and second regions of the developing member and the glass substrate 9 are transferred by the transfer potential applying unit 35. When the potential applied to the main surface opposite to the transfer surface 91 is the first transfer potential, the second transfer potential, and the third transfer potential, respectively, and the polarity of the toner in the toner liquid is positive (first 1 transfer potential> third transfer potential ≧ second transfer potential), and when the polarity of the toner in the toner liquid is negative (first transfer potential <third transfer potential ≦ second transfer potential). As a result, an electric field is formed between the first region of the development surface and the transfer surface 91 of the glass substrate 9 and the toner is directed to the transfer surface 91, and between the second region and the transfer surface 91. , The electric field where the toner goes to the development surface It is formed, or, it is necessary that the magnitude of the electric field is zero. In addition, when the transfer processing unit 112 is moved from the transfer container 31 to the cleaning container 32, the toner on the transfer surface 91 of the glass substrate 9 is securely held in relation to the polarity of the toner. It is preferable that the polarity of the transfer potential is opposite, or the third transfer potential is a ground potential.

  Further, the toner image on the developing members 6 and 6a is accurately transferred onto the glass substrate 9 by suppressing the two-dimensional spread of the toner at the time of transfer by using the black matrix 81, so that a more accurate color filter can be obtained. From the viewpoint of manufacturing, when the potential applied to the black matrix 81 by the transfer potential applying unit 35 is the fourth transfer potential, and the polarity of the toner in the toner liquid is positive (fourth transfer potential ≧ first transfer). When potential> third transfer potential ≧ second transfer potential is satisfied and the polarity of the toner in the toner liquid is negative (fourth transfer potential ≦ first transfer potential <third transfer potential ≦ second transfer potential). ) Is satisfied, it is important that an electric field is formed between the black matrix 81 and the development surface where the toner is directed toward the development surface, or the electric field strength is zero. It made. Note that when the fourth transfer potential is also applied to the black matrix 81 at the time of transferring the toner image, stable production of a high-precision color filter can be easily realized, and therefore the first at the time of transferring the toner image. In addition, the selection range of various conditions such as the third transfer potential can be expanded.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made.

  In the image forming system 1, an image forming unit for each color is prepared, and after forming a toner image of one color (including fixing) on the glass substrate 9 in the image forming unit for one color, the glass substrate 9. Is transferred to the image forming unit for other colors, so that the color of the toner image formation target on the glass substrate 9 is switched from one color to another, and the developing device 2, the transfer device 3 and the fixing device 4 are switched. In the case where it is not necessary to manufacture a large number of color filters, such as when manufacturing a color filter for a special purpose, the image forming system 1 is not necessarily provided with an image forming unit for each color. Absent. For example, the developing device in the image forming system has a plurality of developing containers for storing toner liquids of different colors, and the developing container used for developing in the developing device is switched, whereby the glass substrate 9 is switched. The toner image formation target color may be switched from one color to another.

  The developing members 6 and 6a can have various structures as long as they have a developing surface in which a first area corresponding to a toner image and a second area other than the first area are set. By providing a fine insulating portion between the first region and the second region, the first region and the second region may be provided on the same plane while allowing different potentials to be applied. However, from the viewpoint of easily producing the developing member, the first region or the second region is formed on one main surface of the plate-like conductive or semiconductive substrate 61 with the conductive material or the semiconductive material. It is preferable that the developing member is manufactured by forming the electrode portions 63 and 63a corresponding to the regions through the insulating layer 62. In addition, although it takes a long time to manufacture a highly accurate developing member, in the production of a color filter, a developing member (a plurality of developing members for different colors or one development used for a plurality of colors) is used. Member) can be used repeatedly, so that the time and cost for manufacturing the color filter are not significantly increased.

  In each of the development potential applying unit 25 of the developing device 2 and the transfer potential applying unit 35 of the transfer device 3, when the potential applied to each component is the ground potential, the voltage source 251 connected to the configuration. ˜253, 351 to 354 may be omitted.

  In the developing device 2, the developing members 6 and 6 a are held in the toner liquid in the developing container 21 as the developing processing unit 111 by the unit gripping mechanism 231, but the electrode member 24 is fixed in the developing container 21. In some cases, the developing members 6 and 6a may be held in the toner liquid by a mechanism that holds only the developing members 6 and 6a. That is, as long as the developing members 6 and 6a are held while the electrode surface of the electrode member 24 and the developing surface are opposed to each other with a minute gap, any developing holding portion may be used.

  In the transfer device 3, the developing members 6 and 6a and the glass substrate 9 are held as the transfer processing unit 112 in the nonpolar solvent in the transfer container 31 by the unit gripping mechanism 331. For example, the developing members 6 and 6a The developing members 6 and 6a and the glass substrate 9 may be held in a nonpolar solvent by a mechanism that holds the glass substrate 9 held by suction suction on the suction plate 34 individually. Thus, if the developing members 6 and 6a and the glass substrate 9 are held while the developing surface and the transfer surface 91 are opposed to each other with a minute gap, the transfer holding unit has various configurations. It is possible.

  Further, the fixing of the toner image on the glass substrate 9 in the fixing device 4 may be performed by a method other than the heating by the plurality of lamps 41.

  In the image forming system 1, it is possible to easily form a toner image on the glass substrate 9 to manufacture a color filter. However, the toner image is formed on a film-like transparent member, and the color filter is formed. May be manufactured. Further, the image forming system 1 may be used for applications other than the manufacture of color filters. For example, toner formed by covering the periphery of fine particles of metal such as copper with an insulating material such as resin in a solvent. The toner liquid is prepared by dispersing, and after the toner image is formed on the developing member using the toner liquid, the toner image is transferred to the transfer surface of the resin substrate, and then the resin component of the toner is removed by heating. By doing so, a wiring pattern may be formed on the resin substrate. As described above, in the image forming system 1, it is possible to form a toner image on various plate-like or film-like objects with high accuracy and easily.

1 is a diagram illustrating a configuration of an image forming system. It is a figure which shows the black matrix of a glass substrate. It is a top view which shows a developing member. It is sectional drawing of a developing member. FIG. 3 is a diagram illustrating the inside of a developing container when a toner image is formed. FIG. 3 is a diagram illustrating the inside of a transfer container when a toner image is transferred. It is a figure which shows the flow of the process which manufactures a color filter. It is a figure for demonstrating the direction of the electric field formed between an electrode member and a developing member. It is a figure for demonstrating the direction of the electric field formed between a glass substrate and a developing member. It is a figure which shows a color filter. It is a top view which shows the other example of a developing member. It is a figure for demonstrating the direction of the electric field formed between an electrode member and a developing member. It is a figure for demonstrating position alignment with a glass substrate and a developing member. It is a figure for demonstrating the direction of the electric field formed between a glass substrate and a developing member. It is a figure for demonstrating position alignment with a glass substrate and a developing member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Image forming system 2 Developing device 3 Transfer device 4 Fixing device 6, 6a Developing member 8 Color filter 9 Glass substrate 21 Developing container 24 Electrode member 25 Developing potential applying portion 31 Transfer container 35 Transfer potential applying portion 61 Base material 62 Insulation Layer 63, 63a Electrode part 81 Black matrix 82 Filter layer 91 Transfer surface 231 Unit gripping mechanism (of developing device) 240 Electrode surface 331 Unit gripping mechanism 633, 633a Rectangular electrode 641 Rectangular area S11, S12, S14 , S15, S17, S18 Step

Claims (13)

An image forming method for forming a toner image on a plate-like or film-like object,
a) A developing member having a developing surface in which a first region corresponding to a toner image and a second region other than the first region are set, the electrode surface of the electrode member and the developing surface facing each other with a minute gap Placing the toner in the toner liquid in which the toner is dispersed,
b) An electric field is formed between the first region and the electrode surface where the toner is directed toward the development surface, and an electric field where the toner is directed toward the electrode surface between the second region and the electrode surface. The first development potential, the second development potential, and the third development potential are applied to the first region, the second region, and the electrode surface, respectively, so that the electric field is formed or the electric field is zero. And a process of
c) The developing member having the toner attached to the first region is disposed in a non-polar solvent, and an object having a surface to be transferred is made to face the surface to be transferred and the developing surface with a minute gap therebetween. While disposing in the non-polar solvent,
d) An electric field is formed between the first region and the transfer surface, and the toner is directed to the transfer surface, and the toner is transferred to the development surface between the second region and the transfer surface. The first transfer potential, the second transfer potential, and the third transfer are applied to the first region, the second region, and the object, respectively, so that an electric field toward the target is formed or the magnitude of the electric field is zero. Applying a potential;
An image forming method comprising: The image forming method according to claim 1,
e) fixing the toner transferred to the transfer surface in the step d) on the transfer surface outside the nonpolar solvent;
f) repeating the steps a) to e) while changing the color of the toner;
Further comprising
The object is a transparent member having an insulating property,
An image forming method, wherein the toner image formed on the transfer surface is a filter layer of a color filter. The image forming method according to claim 2,
The same developing member is used when repeating step a) to step e) in step f).
Each time the step c) is repeated, the relative position of the transferred surface with respect to the developing surface is changed along the developing surface in accordance with the color arrangement of the filter layer of the color filter. Forming method. The image forming method according to claim 2, wherein:
An image forming method, wherein a black matrix is formed in advance on the transfer surface of the object. The image forming method according to claim 4,
The black matrix is conductive or semiconductive;
In the step d), the black matrix is formed so that an electric field is formed between the black matrix and the development surface, and the electric field is directed toward the development surface. A fourth transfer potential is applied to the image forming method. The image forming method according to any one of claims 1 to 5,
The developing member has an electrode portion corresponding to the first region or the second region made of a conductive material or a semiconductive material on one main surface of a plate-like conductive or semiconductive substrate. An image forming method characterized by being formed through an insulating layer. The image forming method according to any one of claims 1 to 6,
An image forming method, wherein the polarity of the first development potential is opposite to the polarity of the toner, or the first development potential is a ground potential. The image forming method according to any one of claims 1 to 7,
An image forming method, wherein the polarity of the third transfer potential is opposite to the polarity of the toner, or the third transfer potential is a ground potential. An image forming system for forming a toner image on a plate-like or film-like object,
A developing device that attaches toner to the first region of the developing member having a developing surface in which a first region corresponding to a toner image and a second region other than the first region are set;
A transfer device for transferring the toner adhering to the first region to a transfer surface of an object;
With
The developing device is
A developing container for storing a toner liquid in which the toner is dispersed;
A developing holder for holding the developing member while facing the electrode surface of the electrode member and the developing surface with a minute gap in the toner liquid;
An electric field is formed between the first region of the developing surface and the electrode surface, and the toner is directed to the developing surface, and the toner flows to the electrode surface between the second region and the electrode surface. A first developing potential, a second developing potential, and a third developing potential are applied to the first region, the second region, and the electrode surface, respectively, so that an inward electric field is formed or the magnitude of the electric field is zero. A developing potential applying portion for applying
With
The transfer device is
A transfer container in which a nonpolar solvent is stored;
In the non-polar solvent, a transfer holding unit that holds the developing member and the object while facing the developing surface and the transferred surface of the object with a minute gap therebetween,
An electric field is formed between the first region of the development surface and the transfer surface, and the toner is directed to the transfer surface, and the toner is developed between the second region and the transfer surface. The first transfer potential, the second transfer potential, and the second transfer potential are applied to the first region, the second region, and the object, respectively, so that an electric field toward the surface is formed or the magnitude of the electric field is zero. 3 a transfer potential applying section for applying a transfer potential;
An image forming system comprising: The image forming system according to claim 9,
A fixing device for fixing the toner transferred onto the transfer surface by the transfer device to the transfer surface;
The object is a transparent member having an insulating property,
An image forming system, wherein the toner image formed on the transfer surface is a filter layer of a color filter. The image forming system according to claim 10,
An image forming system, wherein a black matrix is formed in advance on the transfer surface of the object. The image forming system according to claim 11,
The black matrix is conductive or semiconductive;
The transfer potential applying unit is configured so that an electric field is formed between the black matrix and the development surface, and the electric field of the toner is directed toward the development surface, or the electric field is zero. An image forming system, wherein a fourth transfer potential is applied to the matrix. The image forming system according to any one of claims 9 to 12,
The developing member has an electrode portion corresponding to the first region or the second region made of a conductive material or a semiconductive material on one main surface of a plate-like conductive or semiconductive substrate. An image forming system, wherein the image forming system is formed through an insulating layer.

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