Patent Publication Number: US-10322547-B2

Title: Bonded member manufacturing apparatus and method of manufacturing bonded member

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application is a divisional of U.S. application Ser. No. 13/631,837, filed on Sep. 28, 2012, which claims priority to and claims the benefit of Japanese Patent Application No. 2011-218643, filed Sep. 30, 2011, both of which applications are incorporated herein by reference. 
    
    
     BACKGROUND OF THE INVENTION 
     1. Technical Field 
     The present invention relates to a manufacturing apparatus of a bonded member and a manufacturing method of a bonded member. More particularly, the present invention relates to a manufacturing apparatus of a bonded member and a manufacturing method of a bonded member for bonding two substrates as the bonded members together adjusting a curing state of a resin film. 
     2. Related Art 
     Conventionally, when manufacturing the bonded member, particularly an optical device with the substrate in non-circular shape such as a liquid crystal panel, resin has been applied in a so-called fishbone shape, and the substrates have been bonded together. In other words, bonding has been conducted by applying the resin that becomes a major section around a center of one substrate, applying the resin as plural guidance sections branching from the major section toward the outer periphery of the substrate, placing the one substrate to face to the other substrate, and gradually moving the substrates close to each other to spread the applied resin over the entire substrate. (See Patent Documents 1 and 2) 
       FIG. 18  schematically shows a conventional bonding method. In bonding of comparatively thick substrates  11 E and  12 E, when the substrates are provisionally bonded by irradiating ultraviolet light from cutout sections  17 E at four corners of the holding means  41 E with an ultraviolet irradiation means  31 E in a state where one substrate  12 E is held with a holding means  41 E, the initial state of two combined substrates  11 E and  12 E could be maintained even if the held state is cancelled after bonding. 
     [Patent Document 1]
         Japanese Patent Application Publication No. 2011-22508       

     [Patent Document 2]
         Japanese Patent Application Publication No. 2011-67802       

     However, if at least one of the two substrates is thin, it has been difficult to maintain uniform film thickness after bonding. For example, due to the shape of a holding surface or the presence of absorption holes of the holding means, distortion occurs on a surface of the film-like substrate, and the uniformity of the film thickness is largely affected. 
     The following problems arise when the film-like thin substrate is provisionally bonded by the irradiation of the ultraviolet light from the cutout sections  17 E at four corners of the holding means  41 E with the ultraviolet irradiation means  31 E in a state where the film-like thin substrate is held in the holding means  41 E by the conventional holding means. In other words, the light incident from a space between an end of the holding means  41 E and the substrate  11 E into the inside of the substrate is dispersed between the holding means  41 E and the substrate  11 E, or the area where the ultraviolet light is blocked and the area where the ultraviolet light is irradiated are produced, and therefore the differences in amount of irradiation of the ultraviolet light arise, and nonuniform curing occurs on a resin film  13 E. Thus, there has been a problem that the distortion (undulation) occurs on the surface of the film-like substrate and the uniform film thickness cannot be maintained. 
     In a curing process of the resin film after bonding, if the holding means  41 E holding the film-like substrate could be removed and the film-like substrate could be cured without being held, the holding member  41 E might not be an obstacle, and the resin film  13 E could be uniformly cured. However, there has been a problem that when the holding member  41 E is removed from the film-like substrate, the film-like substrate combined at an optimum position on the substrate  11 E becomes misaligned. 
     In addition, when a relative misalignment is present between the substrates, or when the distortion (undulation) occurs on the surface of the film-like substrate and the film thickness becomes nonuniform, it results in significant reduction of visibility and in disfigurement. Furthermore, in a case where a touch panel as the film-like substrate is bonded to the substrate, the sensitivity of a touch sensor becomes non-uniform. 
     The object of the present invention is to prevent the relative misalignment from occurring between the substrates, to prevent the distortion (undulation) from occurring on the surface of the thin substrate, and to achieve the uniformity in the film thickness in a case where one of the substrates is a thin substrate when two substrates are bonded together to produce the bonded member. 
     SUMMARY OF THE INVENTION 
     To achieve the above object, a bonded member manufacturing apparatus  10  according to Aspect (1) of the present invention is, as shown in  FIG. 1  for example (see  FIG. 3  for each component), a bonded member manufacturing apparatus  10  for bonding a first substrate  11  and a second substrate  12  together, comprising: a resin film forming means  20  for forming a liquid state resin film  13  on the first substrate  11 ; a semi-curing means  30  for maintaining an outer peripheral section  14  of the resin film  13  formed with the resin film forming means  20  in an uncured state and curing an inner section  15  surrounded with the outer peripheral section  14  in a semi-cured state; and a substrate bonding means  40  for bonding the first substrate  11  and the second substrate  12  together by bringing the second substrate  12  into contact with the resin film  13  wherein the outer peripheral section  14  is in the uncured state and the inner section  15  is in the semi-cured state, such that one end of the outer peripheral section  14  is determined as a starting point  16  of the contact so that a boundary line between a contact portion and a noncontact portion moves in one direction from the starting point  16  to an opposite end of the outer peripheral section while applying pressing force to the second substrate, the contact portion being already contacted and the noncontact portion being not yet contacted in a process of bringing the second substrate  12  into contact with the resin film. 
     Herein, the bonded member means a product in which two or more members are bonded together with a bonding agent (adhesive). Therefore, the bonded member manufacturing apparatus means an apparatus that bonds two or more members by using the bonding agent. In this specification, a case of bonding the first substrate  11  and the second substrate  12  is handled. Although any substrates can be selected as the first substrate  11  and the second substrate  12 , an example in which the first substrate  11  is a substrate for an optical device such as a liquid crystal panel and the second substrate  12  is a transparent thin substrate such as a protective film is handled as a typical example. Although the shape of the substrate is generally like a rectangular flat plate, the shape is not limited to the rectangular shape but can be any shapes such as a circular shape and a heart shape, and not limited to the flat plate but may be slightly curved or concave or convex, or may have depressions, and changes in thickness, and the substrate may be constructed with a flexible material. The outer peripheral section  14  of the resin film  13  means a region in a specified width from an outer periphery when the resin film  13  applied on the first substrate  11  is viewed from the normal direction of the first substrate  11 . Although the specified width can be determined appropriately, herein, because a bulged portion in comparison with the other portion is formed in the outer periphery at the time of application of the resin in the liquid state, the width may approximately be agreed with such the width that the bulged portion is formed or slightly larger than the width (for example, as large as or twice as large as the width). The inner section  15  means the area surrounded with the outer peripheral section  14  of the resin film  13  that is applied on the first substrate. 
     Regarding the cured (hardened) state of the resin film  13 , the state where the film has sufficient hardness as a product is referred to as a fully cured state, and the semi-cured state means the state where cure degree is lower than that in the fully cured state and adhesiveness to the second substrate  12  remains. The semi-cured state also means the state where the modulus of elasticity (stress/distortion) is lower than that in the fully cured state. The uncured state means the state where cure treatment (ultraviolet irradiation) is not conducted or the state where, even if the cure treatment is conducted, it is not sufficient and the liquid state is maintained, that is, the state where the flowability is maintained. 
     According to the configuration of the present aspect, even if one of the substrates is a thin substrate when two substrates are bonded together to produce the bonded member, the manufacturing apparatus  10  of the bonded member can be provided such that (1) since the inner section  15  of the resin film  13  is semi-cured, thereby the viscosity of the resin increases, and because one substrate is provisionally bonded to the other substrate when one substrate is bonded to the other substrate, the relative misalignment can be prevented from occurring between the substrates, (2) a distortion (undulation) can be prevented from occurring on a surface of the thin substrate, and the uniformity in the film thickness can be achieved. 
     The bonded member manufacturing apparatus  10  according to Aspect (2) is a manufacturing apparatus of Aspect (1), as shown in  FIG. 1  and  FIG. 3  for example, wherein the semi-curing means  30  has an ultraviolet irradiation means  31  for irradiating ultraviolet light to cure the resin film  13 , and a light blocking means  32  for blocking the ultraviolet light by the ultraviolet irradiation means  31  to be irradiated to the outer peripheral section  14  of the resin film  13  formed with the resin film forming means  20 . 
     The light blocking means  32  is preferably a shielding means that shields the outer peripheral section  14  from the irradiation of the ultraviolet light by the ultraviolet irradiation means  31 . 
     According to the configuration of this Aspect, by irradiating the ultraviolet light using the light blocking means  32 , the resin film  13  formed on the first substrate  11  can be reliably maintained with the outer peripheral section  14  in the uncured state and with the inner section  15  cured in semi-cured state. In addition, for example, by controlling the time of the ultraviolet irradiation or the intensity of the ultraviolet light, the semi-cured state can be properly adjusted. 
     The bonded member manufacturing apparatus  10  according to Aspect (3) is a manufacturing apparatus of Aspect (1) or Aspect (2), as shown in  FIG. 5  for example, wherein the second substrate  12  is a transparent polymer film; and the substrate bonding means  40  has a mounting means  21  for mounting the first substrate  11  thereon and a roller means  42  for rolling on the second substrate  12  from one end side to another end side of the outer peripheral section  14  while pressing the second substrate  12  toward the first substrate  11 , and thereby bonding the second substrate  12  to the first substrate  11 . 
     Herein, the polymer film as the second substrate  12  is required to have transparency, and various characteristics are required, depending on the optical device that constructs the first substrate  11 . The polymer film has, in addition to a transparency, a protective function that protects the surface of the liquid crystal panel from contamination in a case where the first substrate  11  is an optical device such as the liquid crystal panel. Besides, a polycarbonate (PC) film to be used for optical compensation is preferable in a case of use in a mobile phone, and a cycloolefin (COP) film is preferable in a case of use in a touch panel. In this specification, a distinction is made between the mounting means  21  that the first substrate  11  is mounted on and a holding means  41  (see Aspect 4) that holds the second substrate  12 , but the mounting means  21  may also have a vacuum suction hole or a claw for holding, and the holding means  41  may merely mounts the substrate thereon. 
     According to the configuration of this Aspect, when the second substrate  12  is bonded to the resin film  13  applied on the first substrate  11 , the roller means  42  is used to the resin film  13  in which the inner section  15  is cured in the semi-cured state, and therefore the relative misalignment can be prevented from occurring between the substrates, the distortion (undulation) can be prevented from occurring on the surface of the thin substrate and the smoothness can be maintained. The uniformity in the film thickness can also be achieved. In addition, there is an advantage that air bubbles are hardly trapped between the second substrate  12  and the resin film  13 . 
     The manufacturing apparatus  10 A according to Aspect (4) is a manufacturing apparatus of Aspect (1) or Aspect (2), as shown in  FIG. 8  and  FIG. 9  for example, wherein the substrate bonding means  40 A has a mounting means  21  for mounting the first substrate  11  thereon, a holding means  41  for holding the second substrate  12 , and a rotating means  43  for rotating the holding means  41 , the rotating means being coupled with the holding means  41 ; and a controller  50  for controlling spacing between the mounting means  21  and the holding means  41  and for controlling the rotating means  43  to allow the second substrate  12  held with the holding means  41  to be brought into contact with the resin film  13  wherein the outer peripheral section  14  is maintained in the uncured state and the inner section  15  is cured into the semi-cured state such that the one end of the outer peripheral section  14  is determined as the starting point  16 , and the boundary line between the contact portion and the noncontact portion moves in the one direction from the starting point  16  to the opposite end while the pressing force is applied. 
     According to the configuration of this Aspect, since the second substrate  12  is held with the holding means  41  and rotated to be brought into contact with the resin film on the first substrate  11 , the substrate bonding step can be easily automated. In addition, the program manipulation of the substrate bonding step can be achieved, and in this case, while the spacing between the mounting means  21  and the holding means  41  is being adjusted, the rotating means  43  is controlled, and therefore the boundary line between the contact portion and the noncontact portion can be moved in one direction. 
     The manufacturing apparatus  10 D according to Aspect (5) is a manufacturing apparatus of Aspect (4), as shown in  FIG. 16  and  FIG. 17  for example, further comprising: a substrate thickness measuring means  70  for measuring a thickness of the substrate; wherein the substrate bonding means  40  is for adjusting the spacing between the mounting means  21  and the holding means  41 , based on thickness data of at least either one of the first substrate  11  and the second substrate  12  obtained by the substrate thickness measuring means  70 . 
     According to the configuration of this Aspect, the thickness of the first substrate or the second substrate can be obtained in advance with the substrate thickness measuring means  70 , and therefore the height of the mounting means  21  or the holding means  41  can be adjusted at the substrate bonding. 
     The manufacturing apparatus  10 C according to Aspect (6) is a manufacturing apparatus of Aspect (1) or Aspect (2), as shown in  FIG. 14  and  FIG. 15  for example, wherein the resin film forming means  20  has a slit coater  22  to feed a resin in the liquid state from a resin feeding slit and to apply the liquid state resin film  13  on the first substrate  11 , the resin feeding slit being disposed in parallel with a surface of the first substrate  11 , the surface being for forming the resin film thereon, the slit coater being movable perpendicularly to the resin feeding slit and movable in parallel with the surface of the first substrate  11 , and applies the liquid state resin film  13  on the first substrate  11 , the semi-curing means  30  has the ultraviolet irradiation means  31  for irradiating the ultraviolet light to the liquid state resin film  13  formed on the first substrate  11  with the resin film forming means  20 , and the ultraviolet irradiation means  31  has an ultraviolet irradiation slit disposed in a parallel direction with the resin feeding slit, the ultraviolet irradiation means being constructed integrally in combination with the slit coater  22 , the ultraviolet irradiation slit being formed shorter by a specified length in a longitudinal direction between both ends than the resin feeding slit. 
     Herein, the specified length is generally the width of the outer peripheral section  14  at one end, and the sum at both ends is the double of the width of the outer peripheral section  14  in length. According to the configuration of the present Aspect, since the slit coater  22  and the ultraviolet irradiation means  31  are integrally formed in combination, the ultraviolet light is automatically irradiated after the elapse of a certain period of time after dropping the liquid state resin  13 . In addition, since the length of the ultraviolet irradiation slit in the longitudinal direction between both ends is formed shorter by a specified length than the length of the resin feeding slit in the longitudinal direction, unirradiated region, that is, uncured region is automatically formed in the outer peripheral section  14  without the shielding means. Typically, the specified time is the value calculated by division, that the spacing between the resin feeding slit and the ultraviolet irradiation slit plus the width of the outer peripheral section  14  is divided by the scanning speed. 
     To achieve the above object, a bonded member manufacturing method according to Aspect (7) of the present invention is, as shown in  FIG. 2  for example (see  FIG. 3  for each component), a manufacturing method wherein a first substrate  11  and a second substrate  12  are bonded together, comprising: a resin film forming step (Step  2 ) of forming a liquid state resin film  13  on the first substrate  11 ; a semi-curing step (Step  4 ) of maintaining an outer peripheral section  14  of the resin film  13  formed through the resin film forming step (Step  2 ) in an uncured state and curing an inner section  15  surrounded by the outer peripheral section  14  in a semi-cured state; and a substrate bonding step (Step  6 ) of bonding the first substrate  11  and the second substrate  12  together by bringing the second substrate  12  into contact with the resin film  13  wherein the outer peripheral section  14  is in the uncured state and the inner section  15  is in the semi-cured state, such that one end of the outer peripheral section  14  is determined as a starting point  16  of the contact so that a boundary line between a contact portion and a noncontact portion moves in one direction from the starting point  16  to an opposite end of the outer peripheral section while applying pressing force to the second substrate, the contact portion being already contacted and the noncontact portion being not yet contacted in bringing the second substrate  12  into contact with the resin film. 
     According to the configuration of this Aspect, even if one of the substrates is a thin substrate when two substrates are bonded together to produce the bonded member, the manufacturing method of the bonded member can be provided such that (1) since the inner section  15  of the resin film  13  is semi-cured, thereby the viscosity of the resin increases, and because one substrate is provisionally bonded to the other substrate when the one substrate is bonded to the other substrate, the relative misalignment can be prevented from occurring between the substrates, (2) a distortion (undulation) can be prevented from occurring on a surface of the thin substrate, and the uniformity in the film thickness can be achieved. 
     The manufacturing method according to Aspect (8) is a manufacturing method of Aspect (7), as shown in  FIG. 2  and  FIG. 3  for example, wherein the semi-curing step (Step  4 ) has an ultraviolet irradiation step (Step  4 - 1 ) of irradiating ultraviolet light to cure the resin film  13 , and a light blocking step of blocking the ultraviolet light to be irradiated by the ultraviolet irradiation step (Step  4 - 1 ) to the outer peripheral section  14  of the resin film  13  formed through the resin film forming step (Step  2 ). 
     The light blocking step may preferably be a shielding step (Step  4 - 2 ) that shields the outer peripheral section  14  from the irradiation of the ultraviolet light by the ultraviolet irradiation step (Step  4 - 1 ) (typically, the outer peripheral section  14  is covered with the shielding member  32  (STEP  3 ), to be shielded from the ultraviolet light irradiated thereto). 
     According to the configuration of the Aspect, by blocking the light through the light blocking step, typically, by shielding the irradiation of the ultraviolet light, the resin film  13  formed on the first substrate  11  can be reliably maintained with the outer peripheral section  14  in the uncured state and the inner section  15  cured in semi-cured state. In addition, by controlling the time of the ultraviolet irradiation or the intensity of the ultraviolet light, the semi-cured state can be adjusted properly. 
     The manufacturing method according to Aspect (9), is a manufacturing method of Aspect (7) or Aspect (8), as shown in  FIG. 5  for example, wherein the second substrate  12  is a transparent polymer film, and in the substrate bonding step (Step  6 ), the second substrate  12  is pressed toward the first substrate  11  with a roller means  42 , the roller means  42  is rolled from the one end side to the other end side of the outer peripheral section  14 , and thereby the first substrate  11  is bonded to the second substrate  12 . 
     According to the configuration of the Aspect, when the second substrate  12  is bonded to the resin film  13  applied on the first substrate  11 , the roller means  42  is used to the resin film  13  in which the inner section  15  is cured in the semi-cured state, and therefore the relative misalignment can be prevented from occurring between the substrates, the distortion (undulation) can be prevented from occurring on the surface of the thin substrate and the smoothness can be maintained. The uniformity in the film thickness can also be achieved. In addition, there is an advantage that air bubbles are hardly trapped between the second substrate  12  and the resin film  13 . 
     The manufacturing method according to Aspect (10), is a manufacturing method of any one of Aspects (7) to (9), as shown in  FIG. 9  for example, wherein in the substrate bonding step (Step  6 ), a mounting means  21  for mounting the first substrate  11  thereon, a holding means  41  for holding the second substrate  12 , and a rotating means  43  for rotating the holding means  41 , the rotating means being coupled with the holding means  41  are used, the substrate bonding step (Step  6 ) includes a step of controlling the spacing between the mounting means  21  and the holding means  41  and also controlling the rotating means  43  to allow the second substrate  12  held with the holding means  41  to be brought into contact with the resin film  13  wherein the outer peripheral section  14  is maintained in the uncured state and the inner section  15  is cured into the semi-cured state such that one end of the outer peripheral section  14  is determined as the starting point  16  of the contact so that the boundary line between a contact portion and a noncontact portion moves in one direction from the starting point  16  to an opposite end of the outer peripheral section  14  while applying pressing force to the second substrate, the contact portion being already contacted and the noncontact portion being not yet contacted in a process of bringing the second substrate  12  into contact with the resin film. 
     According to the configuration of the Aspect, since the second substrate  12  is held with the holding means  41  and rotated to be brought into contact with the resin film  13  on the first substrate  11 , the substrate bonding step (Step  6 ) can be easily automated. In addition, the program manipulation of the substrate bonding step (Step  6 ) can be achieved, and in this case, the rotating means  43  is controlled while the spacing between the mounting means  21  and the holding means  41  is adjusted, and therefore the boundary line between the contact portion and the noncontact portion can be moved in one direction. 
     According to the present embodiments, the relative misalignment can be prevented from occurring between the substrates, the distortion (undulation) can be prevented from occurring on the surface of the thin substrate, and the uniformity in the film thickness can be achieved, even if one of the substrates is a thin substrate when two substrates are bonded together to produce the bonded member. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a block diagram that illustrates a configuration example of a manufacturing apparatus of bonded member in Embodiment 1; 
         FIG. 2  is a flow chart showing an example of steps of manufacturing method of the bonded member in Embodiment 1; 
         FIG. 3  is a view that illustrates a process in each section of the manufacturing apparatus of the bonded member in Embodiment 1; 
         FIG. 4A  shows a perspective view that schematically indicates the distribution of film thickness of a resin film in liquid state which is formed through a resin film forming step; 
         FIG. 4B  shows a view that schematically indicates the distribution of film thickness of a resin film in liquid state which is formed through a resin film forming step; 
         FIG. 4C  shows a view that schematically indicates the distribution of film thickness of a resin film in liquid state which is formed through a resin film forming step; 
         FIG. 5  shows views that illustrate an example of substrate bonding steps of the bonded member in Embodiment 1; 
         FIG. 6  is a view that illustrates an example of a holding means in Embodiment 1; 
         FIG. 7  is a view that schematically illustrates a substrate bonding means in Embodiment 2; 
         FIG. 8  is a block diagram that illustrates a configuration example of a manufacturing apparatus of a bonded member in Embodiment 3; 
         FIG. 9  shows views that illustrate an example of substrate bonding steps in Embodiment 3; 
         FIG. 10  is a view that illustrates an appearance when a substrate film comes into contact with the resin film; 
         FIG. 11A  shows a view that illustrates an example in which the holding means holds a second substrate in a curved shape; 
         FIG. 11B  shows a view following  FIG. 11A  that illustrates an example in which the holding means holds a second substrate in a curved shape; 
         FIG. 11C  shows a view following  FIG. 11B  that illustrates an example in which the holding means holds a second substrate in a curved shape; 
         FIG. 12  is a block diagram that illustrates a configuration example of a manufacturing apparatus of a bonded member in Embodiment 5; 
         FIG. 13  is a view that illustrates an example in which an electric field is applied between a first substrate and a second substrate; 
         FIG. 14  is a block diagram that illustrates a configuration example of a manufacturing apparatus of a bonded member in Embodiment 6; 
         FIG. 15  is a view that illustrates an example in which a slit coater as an application means and an ultraviolet irradiation means are integrally formed in combination; 
         FIG. 16  is a block diagram that illustrates a configuration example of a manufacturing apparatus of a bonded member in Embodiment 7; 
         FIG. 17  is a view that illustrates an example of measuring the thickness of the first substrate; and 
         FIG. 18  is a view that schematically shows a conventional bonding method. 
     
    
    
     This application is based on the Patent Applications No. 2011-218643 filed on Sep. 30, 2011 in Japan, the contents of which are hereby incorporated in its entirety by reference into the present application, as part thereof. 
     The present invention will become more fully understood from the detailed description given hereinbelow. Further range of application of the present invention will become more clear from the detailed description given hereinbelow. However, the detailed description and the specific embodiment are illustrated of desired embodiments of the present invention and are described only for the purpose of explanation. Various changes and modifications will be apparent to those ordinary skilled in the art on the basis of the detailed description. 
     The applicant has no intention to give to public any disclosed embodiments. Among the disclosed changes and modifications, those which may not literally fall within the scope of the patent claims constitute, therefore, a part of the present invention in the sense of doctrine of equivalents. 
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the sections identical with or corresponding to each other are denoted by the same reference numeral, and the redundant description is not repeated. 
     Embodiment 1 
     Embodiment 1 is described such that, in an example in which an ultraviolet shielding means as a light blocking means is used to maintain an outer peripheral section of the resin film in an uncured state and cure an inner section in a semi-cured state, a first substrate is mounted on a mounting means, while a roller means is used to press a second substrate toward the first substrate, the roller means is rolled from one end section to the other end section of the outer peripheral section, and therefore the second substrate is bonded to the first substrate. 
       FIG. 1  shows a configuration example of a manufacturing apparatus  10  of a bonded member in Embodiment 1.  FIG. 3  and  FIG. 5  should be referred to for each part of the manufacturing apparatus  10  of the bonded member. In  FIG. 1 , the manufacturing apparatus  10  of the bonded member is an apparatus for bonding the first substrate  11  and the second substrate  12  together. The manufacturing apparatus  10  of the bonded member is provided with a resin film forming means  20  that forms a liquid state resin film  13  on the first substrate  11 , a semi-curing means  30  that maintains an outer peripheral section  14  of the resin film  13  formed with the resin film forming means  20  in an uncured state and cures an inner section  15  surrounded with the outer peripheral section  14  in a semi-cured state, and a substrate bonding means  40  that brings the second substrate  12  into contact with the resin film  13  and bonds the first substrate  11  and the second substrate  12  together while applying pressing force. Here, the outer peripheral section  14  of the resin film  13  is in the uncured state and its inner section  15  is in the semi-cured state when the second substrate  12  is brought into contact with it. Bonding can be conducted such that, for example, one end of the outer peripheral section  14  of the resin film  13  is set as a starting point  16 , the second substrate is brought into contact with the resin film so that a boundary line between a contact portion and a noncontact portion moves from the starting point  16  to the opposite end in one direction while the pressing force is applied, and the second substrate is bonded to the first substrate. 
     The description is made of an example where the first substrate  11  is an optical device such as liquid crystal panel and the second substrate  12  is a film-like thin substrate. The second substrate  12  may be a transparent film that protects the optical device from contamination, and preferably for example a polycarbonate (PC) film that is used for optical compensation in a case of being used in a mobile phone and a cycloolefin (COP) film in a case of being used in a touch panel. The resin film  13  is used as a bonding agent (adhesive) that bonds the first substrate  11  and the second substrate  12  together. A transparent, adhesive, ultraviolet curable polymeric resin can be used for the resin film  13 , and modified acrylate having a main chain of epoxy, polyester, or urethane, for example, can be used. The resin film  13  (bonding agent) is in a liquid state during application, cured with ultraviolet irradiation, and loses its flowability. 
     Regarding the cured state of the resin film  13 , the state where the film has sufficient hardness as a product is referred to as a fully cured state, and the semi-cured state means the state where cure degree is lower than that in the fully cured state and adhesiveness to the second substrate  12  remains. The semi-cured state also means the state where the modulus of elasticity (stress/distortion) is lower than that in the fully cured state. The uncured state means the state where cure treatment (ultraviolet irradiation) is not conducted or the state where, even if the cure treatment is conducted, it is not sufficient and the liquid state is maintained, that is, the state where the flowability is maintained and its viscosity is lower than that in the semi-cured state. 
     The resin film forming means  20  has a mounting means  21  that the first substrate  11  is mounted on, an application means  22  that applies resin as the bonding agent  13  onto the first substrate  11 , and a scanning means  23  that scans (moves) the application means  22  with respect to the mounting means  21 . In this Embodiment, a table is used as the mounting means  21 , and the example in which the first substrate  11  is horizontally held on the table  21  with the bonding surface directed upward is described. The direction of the bonding surface of the substrate is, however, not limited to the horizontal direction, but may be directed to any direction, and may be directed downward (see  FIG. 7 ). Furthermore, in this Embodiment, the substrate is held with vacuum suction. Edges of the substrate may be, however, grasped so as to be caught with claws instead of the vacuum suction, or the substrate may be held with static electricity or an adhesive with weak adhesive force. 
     In this Embodiment, as the application means  22 , the slit coater that feeds the resin in the liquid state from a resin feeding slit parallel to the surface of the first substrate  11  is used, and the scanning direction of the scanning means  23  is determined to the direction parallel to the surface of the first substrate  11  and perpendicular to the resin feeding slit. By dropping of liquid state resin from the slit coater  22  to a linear region on the first substrate  11  immediately below the slit coater and scanning the slit coater  22  with the scanning means  23 , the resin film  13  in the liquid state is formed on the surface of the first substrate  11 . The thickness of the resin film  13  is, for example, about 50 through 200 μm. The resin film  13  tends to bulge in the outer peripheral section  14  in comparison with the inner section  15 . Such phenomenon can be considered due to the action of the flowability and surface tension of the resin film  13 . The slit coater  22  is appropriately fed with the resin from a resin container (not shown) that is disposed above the slit coater  22 . As an alternative to the slit coater  22 , a nozzle (including multiple nozzles) may drop the liquid state resin, and the scanning direction by the scanning means  23  may be determined to two directions that are in parallel with the surface of the first substrate  11  and perpendicular to each other. However, the slit coater  22  has the advantage of quickly applying the resin in thin film. 
     The semi-curing means  30  has an ultraviolet irradiation means  31  that irradiates ultraviolet light for curing the resin film  13 , and a light blocking means  32  that blocks the ultraviolet light by the ultraviolet irradiation means  31  from entering into the outer peripheral section  14  of the resin film  13  formed with the resin film forming means  20 . In this Embodiment, as the light blocking means  32 , a shielding means that shields the outer peripheral section  14  from the irradiation of the ultraviolet light by the ultraviolet irradiation means  31  is used. 
     As the ultraviolet irradiation means  31 , for example, an ultraviolet (UV) lamp or an ultraviolet light-emitting diode (UVLED) lamp that can irradiate the entire surface of the first substrate  11  can be used. As the shielding means  32 , such a frame-like blocking plate that allows the ultraviolet light to pass within the frame and block the ultraviolet light at the portion of the frame can be used. For example, a metal frame with its inner part removed may be used, and a glass plate in which the frame is formed with an ultraviolet blocking filter containing zinc oxide and the like may be used. By blocking with the frame portion the ultraviolet light from the ultraviolet irradiation means  31 , the outer peripheral section  14  of the resin film  13  formed with the resin film forming means  20  can be maintained in the uncured state, and the inner section  15  surrounded by the outer peripheral section  14  can be cured in the semi-cured state. 
     In this state, the inner section  15  comes into the semi-cured state, and thus the flowability is lost, but adherence remains, and when the inner section  15  comes into contact with the second substrate  12 , the inner section  15  can be bonded to the second substrate  12 . In addition, the inner section  15  is cured from the liquid state in which the surface is flat, and thus the inner section  15  comes into the semi-cured state with maintaining flatness of the surface and the uniformity of the film thickness. Therefore, the viscosity of the inner section  15  of the resin film  13  formed on the first substrate  11  increases, and when the second substrate  12  is going to be bonded to the first substrate  11 , the second substrate  12  is fixed and provisionally bonded on the first substrate  11  without drifting of the relative position to the first substrate  11 . In addition, because the second substrate  12  is provisionally bonded to the first substrate  11 , even after the pressing force by a holding means  41  or a roller means  42  is eliminated, the second substrate  12  is not displaced from the first substrate  11 . Thus, because the second substrate  12  is not required to be held, there is no means that constitutes an obstacle to the ultraviolet irradiation, and the ultraviolet light can be uniformly irradiated to the inner section  15  of the resin film  13 , the distortion (undulation) can be prevented from occurring on the surface of the second substrate  12 . The outer peripheral section  14  of the resin film  13  remains in the uncured state. 
     The substrate bonding means  40  has the mounting means  21  that the first substrate  11  is mounted on and a roller means  42  that while pressing the second substrate  12  toward the first substrate  11 , rolls from one end side to the other end side of the outer peripheral section  14 , and thus bonds the second substrate  12  to the first substrate  11 . In use of the roller means  42 , the mounting means  21  of the resin film forming means  20  can be used in common as the mounting means  21  that the first substrate  11  is mounted on. With respect to the roller means  42 , the table  21  is constructed to be relatively movable to a perpendicular direction to a shaft of the roller means  42  in a horizontal plane and moved, and therefore the roller means  42  rotates. 
     When the second substrate  12  is brought into contact with one end side of the outer peripheral section  14  by the roller means  42 , the second substrate  12  comes into contact with the bulged portion of the resin in the outer peripheral section  14 , and the contact portion spreads from the outside to the inside. Then, the uncured portion that is bulged moves toward the inner section  15  and is eventually pressed against the second substrate  12 , and the thickness of the resin film becomes the same in the outer peripheral section  14  and the inner section  15 . Accordingly, one end of the outer peripheral section  14  is determined as the starting point  16 , and the second substrate is brought into contact with the resin film  13  on the first substrate  11  so that a boundary line between a contact portion and a noncontact portion moves from the starting point  16  to the opposite end in one direction while the pressing force is applied on the second substrate  12 . The contact portion of the resin film  13  gradually spreads and eventually reaches the outer peripheral section opposite to the starting point  16 . At this portion, the resin is in the uncured state, and therefore a part of the resin flows, and the second substrate  12  is uniformly pressed and becomes flattened against the first substrate  11  through the resin film  13 . When the roller means  42  passes across the second substrate  12  from one end to the other end, the second substrate  12  is bonded to the first substrate  11  through the resin film  13  and remains on the side of the first substrate  11 . Then, the second substrate  12  is fixed and provisionally bonded on the first substrate  11  without drifting of the relative position to the first substrate  11 . In addition, a flat interface is formed between the second substrate  12  and the resin film  13 , and the bonded member that has no or very small distortion (undulation) on the surface of the second substrate  12  is formed. 
     The controller  50  controls the entire manufacturing apparatus  10  of the bonded member and each component thereof and provides the functions as the manufacturing apparatus  10  of the bonded member. 
       FIG. 2  shows a process flow example of the manufacturing method of the bonded member. Furthermore,  FIG. 3  illustrates a process in each section of the manufacturing apparatus  10  of the bonded member (hereinafter, merely referred to as the “manufacturing apparatus”) in association with the process flow. 
     First, the first substrate  11  is mounted on the mounting means  21  of the manufacturing apparatus  10  (Substrate mounting step: (a), Step  1 ). The first substrate  11  is, for example, a liquid crystal panel (hereinafter, the first substrate  11  is merely referred to as a “substrate”). The thickness of the substrate  11  is the order of 0.3 to 2 mm. Next, liquid resin is applied on the substrate  11  with the application means  22 , and the resin film  13  in the liquid state is formed on the substrate  11  (resin film forming step: (b), Step  2 ). In this Embodiment, the slit coater is used as the application means  22 , and the resin film  13  is formed to achieve specified film thickness. The specified film thickness is 50 to 200 μm. Other application means  22  can be used as an alternative to the slit coater. For example, the liquid resin that is applied linearly through a discharge nozzle can be leveled by a brush and the like to achieve the specified thickness to form the resin film. 
       FIG. 4A ,  FIG. 4B  and  FIG. 4C  schematically show the distribution of film thickness of the resin film  13  in liquid state which is formed through the resin film forming step (Step  1 ).  FIG. 4A  shows the direction of application of the resin film  13  on the first substrate  11 , and  FIG. 4B  and  FIG. 4C  respectively show the distribution of film thickness of the resin film  13  in an X-direction and a Y-direction. As shown in  FIG. 4B  and  FIG. 4C , the outer peripheral sections  14  at four sides tend to bulge in comparison with the inner section  15 . Therefore, when the film-like second substrate  12  (hereinafter, the second substrate is referred to as a “substrate film”) is bonded in this state, the resin film thickness cannot be made uniform, and air bubbles may be trapped during the bonding process. Thus, this embodiment adopts the following means and processes. 
     Going back to  FIG. 2  and  FIG. 3 , the description is continued. First, a shielding means  32  that covers the outer peripheral sections  14  at four side of the resin film  13  formed on the substrate  11  is disposed above the resin film  13  ((c), Step  3 ). The outer peripheral sections  14  at four side of the resin film  13  formed on the substrate  11  are covered with the shielding means  32 , and the ultraviolet light is irradiated from above with the ultraviolet irradiation means  31  (Semi-curing step: (d), Step  4 ). Since the outer peripheral sections  14  at four sides of the resin film  13  are shielded with the shielding means  32 , the outer peripheral sections  14  are not irradiated with the ultraviolet light and maintain the uncured liquid state, and the inner section  15  that is not shielded with the shielding means  32  is semi-cured. 
     Next, the substrate film  12  is held with the holding means  41  (not shown) (Second substrate holding step: (e), Step  5 ). The substrate film  12  is, for example, a protective film for protecting the display surface of the liquid crystal panel  11 . The thickness of the substrate film  12  is the order of 0.05 to 0.2 mm. For example, the substrate film  12  is held with the holding means  41  that is flexible and has a convex and curved surface to the lower side, and the substrate bonding means  40  holds one end of the holding means  41  at a specified distance above the substrate  11 , that is, at a height so as to come into contact with the resin film  13 . 
     Next, in the resin film  13  where the outer peripheral section  14  is in the uncured state and the inner section  15  is in the semi-cured state, the uncured outer peripheral section  14  is determined as the starting point  16 , the substrate film  12  is brought into contact with the resin film  13 , the pressing force applied, and the substrate  11  and the substrate film  12  are combined and bonded with each other. In this Embodiment, the substrate  11  and the substrate film  12  are bonded by using the roller means  42 , determining one end of the outer peripheral section  14  as the starting point  16 , bringing into contact so that a boundary line between a contact portion and a noncontact portion moves in one direction from the starting point  16  to the opposite end while the pressing force is applied (Substrate bonding step: (f), Step  6 ). 
       FIG. 5  illustrates an example of substrate bonding step (Step  6 ) of the bonded member in Embodiment 1. The substrate  11  in which the resin film  13  where the outer peripheral section  14  is in the uncured state and the inner section  15  is in the semi-cured state is formed is placed on the table  21 . The outer peripheral sections  14  at four sides of the resin film  13  are uncured and in the liquid state, and the inner section  15  is in the semi-cured state and its viscosity is increased in comparison with that in the liquid state. In this Embodiment, the substrate  11 , the resin film  13 , and the substrate film  12  are interposed between the table  21  and the roller means  42 , the roller means  42  is rotated on the substrate film  12 , and therefore the substrate film  12  is bonded to the substrate  11  through the resin film  13 . 
       FIG. 6  illustrates an example of the holding means in Embodiment 1. Both sides of the substrate film  12  is held by the holding means  41 B 1  and  41 B 2  through vacuum suction, electrostatic absorption, adhesive with weak adhesion, or mechanical holding (for example, holding clip) before the roller means  42  presses. One end of the substrate film  12  transferred in an upper portion of the substrate  11  is first brought into contact with liquid at the starting point  16  of the bonding as an uncured portion of the resin film  13  by the holding means  41 B 1 . Then, the holding means  41 B 1  retracts to an original retracting position, and the substrate film  12  is brought into contact with the resin film  13  by using the roller means  42  such that one end of the outer peripheral section  14  is determined as the starting point  16 , and the boundary line between the contact portion and the noncontact portion moves from the starting point  16  to the opposite end in one direction while the pressing force is applied, and the substrate film  12  is bonded to the substrate  11 . At that time, the other end of the substrate film  12  is held by the holding means  41 B 2  until the other end of the substrate film  12  is bonded to the uncured opposite end of the resin film  13  on the substrate  11 . 
     Going back to  FIG. 5 , the description is continued. As the roller means  42  moves on the substrate film  12  from one end to the other end, the substrate film  12  is bonded to the substrate  11  (from a to e). In other words, after the substrate film  12  is pressed on the substrate  11  by the roller means  42 , the substrate film  12  is brought into close contact with the resin film  13  and bonded to the substrate  11 , and after the roller means  42  passes, the bonded member can be obtained. 
     When the substrate film  12  is brought into contact with one end side of the outer peripheral section  14  by the roller means  42 , the substrate film  12  comes into contact with the bulged portion of the resin in the outer peripheral section  14 , and the contact portion spreads from the outer peripheral side to the inner side. Then, the uncured portion that is bulged moves toward the inner section and is eventually pressed against the substrate film  12 , and the thickness of the resin film  13  becomes the same in the outer peripheral section  14  and the inner section  15 . Accordingly, one end of the outer peripheral section  14  is determined as the starting point  16 , the substrate film  12  is brought into contact with the resin film  13  on the first substrate  11  so that the position is changed from the starting point  16  to the opposite end in one direction while the pressing force is applied on the substrate film  12 . The contact portion of the resin film  13  gradually spreads and eventually reaches the outer peripheral section  14  opposite to the starting point  16 . The position of the holding means  41 B 2  moves closer to the resin film  13  as the substrate film  12  is bonded to the resin film  13 . At this portion, there is an uncured state portion, and therefore a part of the resin flows, and the second substrate  12  is uniformly pressed and becomes flattened against the first substrate  11  through the resin film  13 . After the roller means  42  passes, a flat interface is formed between the second substrate  12  and the resin film  13  in the entire bonded member. In addition, the relative misalignment is absent between the substrates, and the bonded member that has no or very small distortion (undulation) on the surface of the second substrate  12  is formed. 
     Next, the entire resin film  13  interposed between the substrate  11  and the substrate film  12  that have been bonded is fully cured with the ultraviolet irradiation means  31  ((g), Step  7 ) (see  FIG. 3 ). Accordingly, the bonded member in which the substrate  11  and the substrate film  12  are bonded together using the bonding agent  13  is finished. For example, the display section of the liquid crystal panel as the first substrate  11  is protected by the substrate film as the second substrate  12 . 
     Regarding to the means that conducts complete cure, a device separate from a bonding apparatus that conducts the processes from the resin film forming process to the substrate bonding process (for example, ultraviolet irradiation device) may be used. 
     As described above, according to the present embodiment, the relative misalignment can be prevented from occurring between the substrates, the distortion (undulation) can be prevented from occurring on the surface of the thin substrate, and the uniformity in the film thickness can be achieved, even if one of the substrates is a thin substrate when two substrates are bonded to produce the bonded member. 
     That is, in a case where the thin substrate as the film-like substrate is used, the following effects can be obtained. (1) The inner section  15  of the resin film  13  is semi-cured with a specified film thickness except for the outer peripheral sections  14  at four sides, the viscosity of the resin  13  is increased, and therefore the substrate film  12  is provisionally bonded to the substrate  11  when the substrate film  12  is bonded. Therefore, when the holding means  41  that holds the substrate film  12  is removed, the state where the substrate film  12  is bonded to the substrate  11  is maintained, and the substrate film  12  is not displaced from the substrate  11 . (2) The fluctuation of the film thickness is eliminated in the subsequent production steps, and the film thickness can be uniformly maintained, and therefore the distortion (undulation) does not occur on the surface of the substrate film  12  after bonding the substrate film  12 . In addition, even if the undulation occurred, the undulation would be very small. (3) Because the outer peripheral sections  14  at the four sides of the resin film  13  is in the uncured state, and the outer peripheral section  14  of the resin film  13  is determined to be the starting point  16  of the bonding, air bubbles are hardly trapped at the moment when the substrate film  12  comes into contact with liquid film of the resin film  13 . (4) Because the substrate film  12  is bonded under the uncured state of the outer peripheral sections  14  at the four sides of the resin film  13 , the bulged portion of the outer peripheral section  14  becomes flattened, and the entire film thickness can be made uniform. 
     Embodiment 2 
     In Embodiment 1, an example in which the substrate film  12  is combined and bonded from above the substrate  11  through the resin film  13  is described. Here, in Embodiment 2, an example is described such that the surface where the resin film  13  of the substrate  11  is formed is faced downward, and the substrate film is bonded from below. In comparison with Embodiment 1, although the first substrate  11  and the second substrate  12  are placed upside down, the other configurations are the same. Different points from Embodiment 1 will be principally described. 
       FIG. 7  schematically illustrates the substrate bonding means in Embodiment 2. The resin film  13  in which the outer peripheral section  14  is in the uncured state and the inner section  15  is in the semi-cured state is formed on the first substrate (substrate)  11 , the substrate is turned upside down, and the substrate  11  where the resin film  13  is formed is held on the table  21  through the vacuum suction, for example. Since the outer peripheral section  14  of the resin film  13  is in the uncured state, the resin film  13  has its flowability. However, the resin film  13  is not dropped due to the action of the surface tension. One end that becomes the starting point of the bonding of the flexible second substrate (film)  12  is interposed and held with the holding means  41 B 1  similar to that shown in  FIG. 6  (the holding means is not shown in  FIG. 7 ). The height of the holding means  41 B 1  is adjusted so that when the substrate film  12  is held in a horizontal position, the substrate film  12  is brought into contact with the resin film  13 . The flexible substrate film  12  is interposed and held with the holding means  41 B 1  so as to have a curved surface convex to the upper side. In this Embodiment, the other end of the substrate film  12  is spontaneously drooped down by gravity, and therefore the other end of the substrate film  12  may not be held. Furthermore, the other end of the substrate film  12  may be held by the holding means  41 B 2  as described above, and the holding means  41 B 2  may be linked and moved with the rotation of the roller means  42 . 
     The roller means  42  is pushed to the substrate film  12  from under side. Since the substrate film  12  is flexible, the substrate film  12  comes into contact with the resin film  13  at the one end, but the substrate film does not come into contact with the resin film  13  at the other section and bends downward. One end of the outer peripheral section  14  is determined as the starting point  16 , and the roller means  42  moves from the starting point  16  to the opposite end while applying the pressing force. At this time, as the roller means  42  moves, the substrate film  12  is brought into contact while the boundary line between the contact portion and the noncontact portion moves in one direction. Accordingly, the substrate  11  and the substrate film  12  are bonded together. 
     The other configurations and the process flow are the same as those in Embodiment 1, and the same effects can be provided. 
     Embodiment 3 
     In Embodiment 3, an example in which the ultraviolet shielding means is used to maintain the outer peripheral section of the resin film in the uncured state, and the inner section is cured into the semi-cured state and in which the first substrate (substrate) is mounted on the mounting means (table), the second substrate (substrate film) is held with the holding means and pressed gradually closer to the first substrate side, and the second substrate is bonded to the first substrate is described. 
       FIG. 8  shows a configuration example of the manufacturing apparatus  10 A of the bonded member in Embodiment 3. In comparison with Embodiment 1, although the contents of the substrate bonding means  40 A are different, the other configurations are the same. Different points from Embodiment 1 will be principally described. The processes of the substrate bonding means  40 A should be referred to  FIG. 9 . The substrate bonding means  40 A has a table  21  that the substrate  11  is mounted on (that can be commonly used with the table of the resin film forming means  20 ), and the holding means  41  that holds the substrate film  12 , a rotating means  43  that is coupled to the table  21  to rotate the holding means  41  about a rotational shaft  43 B, a rotational shaft position adjusting means  44  that adjusts the position of the rotational shaft  43 B with respect to the table  21 . 
     The controller  50  controls the rotating means  43  and the rotational shaft position adjusting means  44  to allow the substrate film  12  to be brought into contact with the resin film  13  in which the outer peripheral section  14  is maintained in the uncured state and the inner section  15  is cured into the semi-cured state such that one end of the outer peripheral section  14  is determined as the starting point  16 , and the boundary line between the contact portion and the noncontact portion moves from the starting point  16  to the opposite end in one direction while the pressing force is applied, and the substrate film  12  is bonded to the first substrate  11 . 
     The rotating means  43  has the rotational shaft  43 B as a rotational shaft, a driving part  43 C that drives the rotation of the rotational shaft  43 B, the holding means  41  that is coupled to the rotational shaft  43 B, and a hinge part  43 A that urges the mounting means  21  to an open side. The holding means  41  holds the substrate film  12  through the vacuum suction, for example. The rotational shaft position adjusting means  44  allows the position of the rotational shaft  43 B to move by a small distance in the vertical direction while the rotational shaft  43 B is maintained in parallel with the surface of the table  21 . The controller  50  controls the spacing between the mounting means  21  and the holding means  41  and also controls the rotating means  43 . These controls are conducted through the control of the rotation angle of the holding means  41  by the driving part  43 C of the rotating means  43 , the control of the position of the rotational shaft  43 B by the rotational position adjusting means  44 , and the control of the position of the mounting means  21  for example. The driving part  43 C and the rotational shaft position adjusting means  44  are controlled such that the substrate film  12  is brought into contact with the resin film  13  in which the outer peripheral section  14  is in the uncured state and the inner section  15  is in the semi-cured state so that one end of the outer peripheral section  14  is determined as the starting point  16 , and the boundary line between the contact portion and the noncontact portion moves from the starting point  16  to the opposite end in one direction while the pressing force is applied. 
     The substrate bonding means  40 A holds the substrate film  12  with the holding means  41 . The controller  50  controls the driving part  43 C to decrease the angle between the horizontal plane of the substrate  11  and the holding means  41  and contact to one end of the outer peripheral section  14 , and furthermore controls the rotational shaft position adjusting means  44  to gradually raise the position of the rotational shaft  43 B. During the contact, the resin of the outer peripheral section  14  contacts to the bulged portion, and the contact portion spreads from the outer peripheral side to the inner side. Then, the uncured portion that is bulged moves toward the inner side and is eventually pressed on the substrate film, and the thickness of the resin film becomes the same in the outer peripheral section  14  and the inner section  15 . 
     Accordingly, one end of the outer peripheral section  14  is determined as the starting point  16 , the second substrate is brought into contact with the resin film  13  on the first substrate  11  so that a boundary line between a contact portion and a noncontact portion moves from the starting point  16  to the opposite end in one direction while the pressing force is applied on the substrate film  12 . The contact portion of the resin film  13  gradually spreads and eventually reaches the outer peripheral section  14  opposite to the starting point  16 . Because there is the portion in the uncured state at that point, a part of the resin flows, but the substrate film  12  is uniformly pressed on the substrate  11  through the resin film  13 , and the flat interface is finally formed between the substrate film  12  and the resin film  13 . The controller  50  controls the rotational shaft position adjusting means  44  to gradually lower the position of the rotational shaft  43 B at the pressing after the entire surface of the substrate film  12  contacts. When the holding means  41  is released, the bonded member in which the substrate film  12  is bonded to the substrate  11  through the resin film  13  can be obtained. Then, the relative misalignment is absent between the substrates, and the bonded member that has no or very small distortion (undulation) on the surface of the substrate film  12  is formed. 
     The process flow in Embodiment 3 can adopt that in  FIG. 2 . Although the details of the substrate bonding process are different, the other processes are the same. 
       FIG. 9  illustrates an example of the substrate bonding means  40 A in Embodiment 3. The substrate  11  on which the resin film  13  is formed is mounted on the table  21 . The outer peripheral sections  14  at four sides of the resin film  13  are in the uncured liquid state, and the inner section  15  is in the semi-cured state and its viscosity is increased. The substrate film  12  is held with the holding means  41  ( a ). The substrate bonding means  40 A is provided with the rotating means  43  including a hinge part  43 A, a rotational shaft  43 B, and a driving part  43 C. In addition, in order to adjust the spacing at the bonding between the substrate film  12  and the resin film  13  formed on the substrate  11 , the rotational shaft position adjusting means  44  is provided to be directly coupled to the driving part  43 C and adjusts the vertical position of the rotational shaft  43 B for rotating the holding means  41  with respect to the table  21 . As the rotational shaft position adjusting means  44 , a link mechanism, a guide rail, and the like can be used. The movement of the rotational shaft in the vertical direction is generally driven by an electric motor, and preferably driven by a stepping (stepper) motor. 
     The controller  50  controls the driving part  43 C and the rotational shaft position adjusting means  44 , and thereby controls the lifting position of the holding means  41  (the angle of the rotation and the height of the rotational shaft  43 B). By rotating the rotational shaft  43 B with the driving part  43 C, the holding means  41  is rotated through the hinge part  43 A, and the angle between the holding means  41  and the table  21  gradually decreases from an opening state of 180° (b). The starting point  16  is determined on the outer peripheral section  14  that is the uncured region of the resin film  13  formed on the substrate  11 , and then the substrate film  12  is brought into contact with the resin film  13 . Accordingly, the substrate  11  and the substrate film  12  are combined and bonded with each other (c)(d). 
       FIG. 10  illustrates an appearance when the substrate film  12  comes into contact with the resin film  13 . The outer peripheral sections  14  at four sides of the resin film  13  on the substrate  11  are in the uncured liquid state. When the substrate film  12  is brought into contact with the starting point  16  of the outer peripheral section  14  that is the uncured region of the resin film  13  on the substrate  11 , and the angle of the holding means  41  with respect to the table  21  is gradually decreased, the contact area between the substrate film  12  and the resin film  13  gradually increases. Since the outer peripheral section  14  of the resin film  13  on the substrate  11  is in the uncured liquid state, air bubbles are hardly trapped at the moment when the substrate film  12  comes into contact with liquid film of the resin film  13 , and furthermore the substrate film  12  is gradually brought into contact with liquid on the resin film  13 , and therefore the substrate film  12  can be bonded to the substrate  11  without trapping air bubbles between the substrate film  12  and the resin film  13  in general. 
     Going back to  FIG. 9 , the description is continued. When the bonding is finished, the holding means  41  is returned to the original position (e). 
     The rotational shaft position adjusting means  44  may be absent. However, the adjustment of the spacing between the substrate film  12  and the substrate  11  is facilitated when the rotational shaft position adjusting means  44  is provided. In addition, instead of controlling the height of the holding means  41  as described above, the position adjusting means may be provided to the table  21  to control the vertical position of the table  21 . 
     Furthermore, instead of providing the rotational shaft position adjusting means  44 , a bearing of the rotational shaft  43 B may have play, and a spring may urge the rotational shaft toward the table  21  such that the position around the rotational shaft of the holding means  41  is variable. When the bearing has play, the holding means  41  may be urged toward the table  21  with its own weight. 
     The other configurations and the process flow are the same as those in Embodiment 1, and the same effects can be provided. 
     Embodiment 4 
     In Embodiment 3, the case where the holding means  41  has a flat surface, and in Embodiment 4, an example in which the holding means  41  has a convex and curved surface. Because the holding means  41  has a curved surface, in the similar way to the roller means  42 , the second substrate (film) can be brought into contact with the resin film  13  successively from the starting point  16  of the outer peripheral section  14  of the resin film  13 . It can be said that this is a case where the diameter of the roller means is larger than that in Embodiment 1 (see  FIG. 5 ). When the diameter of the roller means is sufficiently large with respect to size of the substrate, a part of an arc may be cut and the cut part may be the holding means for example (that is, the holding means also serves as the roller means). In addition, the surface of the roller may not be an arc but may be the other convex and curved surface. The other device configurations and the process flow are the same as those in Embodiment 3, and the same effects can be provided. 
       FIG. 11A ,  FIG. 11B  and  FIG. 11C  illustrate an example in which the holding means  41  holds the substrate film  12  in a curved shape. The holding means  41  holds the substrate film  12  in a holding part  41 A in the curved shape (convex surface). The holding means  41  has a holding part support plate  41 B in an opposite side of the substrate  11  with respect to the holding part  41 A. The holding part support plate  41 B is rotatably coupled to the rotational shaft  43 B, and the opening angle with the substrate  11  changes according to the rotation of the rotational shaft  43 B. First, the substrate film  12  is brought into contact with the resin film  13  in a liquid state at one end of the outer peripheral section  14  as the starting point  16  ( FIG. 11A ). Next, the rotational shaft  43 B is rotated and moved to the right side of the drawing, and the substrate film  12  is brought into contact with the liquid resin film  13  ( FIG. 11B ). Furthermore, the rotational shaft  43 B is rotated and moved to the right side of the drawing, and thus the substrate film  12  is brought into contact with the other end of the outer peripheral section  14  of the resin film  13 , and the substrate film  12  is bonded to the substrate  11  through the resin film  13  ( FIG. 11C ). 
     Accordingly, the boundary line between the contact portion and the noncontact portion moves from the starting point  16  to the opposite end in one direction while the pressing force is applied, and thus the relative misalignment is absent between the substrates, the bonded member that has no or very small distortion (undulation) on the surface of the substrate film  12  is formed, and the flat interface is formed between the substrate film  12  and the resin film  13 . 
     The other configurations and the process flow are the same as those in Embodiment 3, and the same effects can be provided. 
     Embodiment 5 
     In Embodiment 5, an example in which a voltage is applied to the holding means  41  in Embodiment 3 is described. In Embodiment 5, a voltage application means  60  is added to the manufacturing apparatus  10 A of the bonded member in Embodiment 3 (see  FIG. 8 ). The voltage is applied between the mounting means (table)  21  and the holding means  41 . The other configurations are the same as those in Embodiment 3. 
       FIG. 12  shows a configuration example of the manufacturing apparatus  10 B of the bonded member in Embodiment 5. In addition,  FIG. 13  illustrates an example in which an electric field is applied between the first substrate (substrate)  11  and the second substrate (film)  12 . A direct-current power supply  60  is connected to the holding means  41 , and the table  21  is connected to ground. When the electric field is formed between the substrate  11  and the substrate film  12 , a front end of the resin film  13  on the substrate  11  is attracted to the substrate film  12 , and therefore the substrate film  12  can be brought into contact with the resin film  13  with a small contact area. Thus, when the substrate film  12  is brought into contact with the resin film  13 , air bubbles are hardly trapped. As an alternative to the direct-current power supply  60 , an alternating-current power supply or a pulsing voltage source can be connected. 
     The other configurations and the process flow are the same as those in Embodiment 3, and the same effects can be provided. 
     Embodiment 6 
     In Embodiment 1, the example in which the ultraviolet shielding means is used to maintain the outer peripheral section of the resin film in the uncured state and cure the inner section into the semi-cured state has been described, and in Embodiment 6, as an another example of the light blocking means, an example in which the ultraviolet irradiation means having an ultraviolet irradiation slit integrally constructed with the slit coater is used to maintain the outer peripheral section of the resin film in the uncured state and cure the inner section into the semi-cured state will be described. The ultraviolet irradiation means and the slit coater are integrally constructed, and the construction is different from Embodiment 1. 
       FIG. 14  shows a configuration example of the manufacturing apparatus  10 C of the bonded member in Embodiment 6. In addition,  FIG. 15  illustrates an example in which the slit coater as the application means  22  and the ultraviolet irradiation means  31 C are integrally formed. The ultraviolet irradiation means  31 C having an ultraviolet irradiation slit is provided in parallel with the resin feeding slit of the slit coater as the application means  22 . Along with the application of the liquid resin, the ultraviolet light is irradiated to the liquid resin to semi-cure the resin film  13 . With respect to the resin feeding slit of the slit coater  22 , the length of the ultraviolet irradiation slit between both ends in the longitudinal direction is formed shorter by a specified length than the length of the resin feeding slit in the longitudinal direction. The specified length is generally the width of the outer peripheral section  14  at one end, and the sum at both ends is the double of the width of the outer peripheral section  14  in length. Furthermore, the scanning means  23  scans (moves) the slit coater  22  and the ultraviolet irradiation means  31 C that are integrated or combined, in the horizontal plane and in the perpendicular direction to the longitudinal direction of the both slits. By this scanning, on the surface of the first substrate (substrate)  11 , when a specified time elapses after the resin film  13  in the liquid state is linearly applied from the resin feeding slit with the slit coater  22 , the ultraviolet light starts to be linearly irradiated from the ultraviolet irradiation slit. The specified time is the time obtained from a calculation in which the spacing between the resin feeding slit and the ultraviolet irradiation slit plus the width of the outer peripheral section  14  is divided by the scanning speed. 
     At this time, the ultraviolet irradiation slit is shorter than the resin feeding slit at both ends in the longitudinal direction, and therefore the ultraviolet light is not irradiated at both ends (to be the outer peripheral sections  14 ) of the resin film  13  in the longitudinal direction. Thus, the resin film  13  is formed in the uncured state at both ends in the longitudinal direction (in the perpendicular direction to the scanning direction) and in the semi-cured state in the inside (to be the inner section  15 ) of the both ends. Regarding the direction in parallel with the scanning direction, the ultraviolet irradiation is started and finished when the ultraviolet irradiation slit is positioned at a specified distance from the end of an application area, and thus the area in the uncured state can be formed at the both ends of the resin film  13 . The specified distance is typically the width of the outer peripheral section. In other words, the semi-curing of the resin film is conducted through the ultraviolet irradiation to only the inner section  15  and not to the outer peripheral sections  14  at four sides of the applied resin film. In this Embodiment, even though the ultraviolet shielding means  32  is not provided, only the inner section  15  can be semi-cured and the outer peripheral sections  14  is not. 
     The other configurations and the process flow are the same as those in Embodiment 1, and the same effects can be provided. 
     Embodiment 7 
     In Embodiment 7, an example in which the thickness of the first substrate (substrate)  11  is measured in Embodiment 3 before the resin film  13  is formed on the substrate  11  by the slit coater is described. 
       FIG. 16  shows a configuration example of the manufacturing apparatus  10 D of the bonded member in Embodiment 7. Furthermore,  FIG. 17  illustrates an example of measuring the thickness of the substrate  11 . The thickness of the substrate  11 , that is, the height from the mounting means (table)  21  to the surface of the substrate  11  is measured by a laser displacement gauge as a substrate thickness measuring means  70 , and the thickness information of the substrate  11  as the result of the measurement is input to the controller  50 . The controller  50  outputs the control signals for controlling the up-and-down movement of the application means  22 , the substrate bonding means  40 D, and/or the table  21 . Accordingly, the height of the resin feeding slit of the slit coater  22  and the height of the holding means  41  of the substrate bonding means  40 D with respect to the surface of the substrate  11  are adjusted. In other words, in the application means  22 , the slit coater  22  or the table  21  is moved up and down in order to adjust the spacing between the tip of the slit coater  22  as the application means and the substrate. The spacing between the tip of the slit coater  22  and the substrate  11  is adjusted in accordance with the thickness of the resin film  13  to be applied. Furthermore, in the substrate bonding means  40 D, the holding means  41  for holding the substrate film  12  or the table  21  for mounting the substrate  11  is moved up and down in order to adjust the spacing between the substrate  11  and the substrate film  12 . In addition, the spacing between the substrate  11  and the substrate film  12 , that is, the spacing between the holding means  41  and the table  21  is adjusted in accordance with the thickness of the resin film  13 . 
     In the substrate bonding means  40 D, the thickness of the substrate film  12  is also measured in addition to the substrate  11 , the spacing between the substrate  11  and the substrate film  12  is adjusted, based on the thickness data of the substrate  11  and the substrate film  12 , and therefore more appropriate adjustment of the spacing can be achieved. The thickness of the second substrate may also be measured on the table  21 , for example. Here, it is understood that, when the substrate film  12  and the substrate  11  are bonded by using the roller means  42  as described in Embodiment 1 and Embodiment 2, the thickness information of the substrate film  12  and the substrate  11  measured by the thickness measuring means  70  can also be utilized. 
     The other configurations and the process flow are the same as those in Embodiment 1 and Embodiment 3, and the same effects can be provided. 
     Up to this point, although the present embodiments have been described, it is obvious that the present invention is not limited to the embodiments described above, but various modifications can be made without departing from the spirit of the present invention. 
     For example, in the above Embodiments, the example in which the second substrate is the film-like thin substrate has been described, but the thin substrate is not limited to the film and may be a plate-like substrate. The second substrate is not limited to the thin substrate, and the present invention is applicable to a thick substrate. The first substrate and the second substrate may be any substrates, and both substrates may be exchanged and applied. The example using the slit coater as the application means  22  of the resin in the liquid state has been described, but the application may be conducted while a single nozzle is scanned in two directions within the mounting surface of the mounting means, and the scanning range described above may be decreased by using multi-nozzles. As the ultraviolet irradiation means  31 , the example in which the entire first substrate  11  is irradiate and the example in which the ultraviolet irradiation slit is scanned have been described, but the ultraviolet lamp with a circular spot may be scanned in two directions within the mounting surface to irradiate. 
     In a baking furnace in which a line ultraviolet irradiation means is disposed on a ceiling, a tray which the first substrate  11  in which the resin film  13  is applied and the shielding means  32  are mounted on may be placed on a belt conveyer and pass. In Embodiment 3, the example in which the substrate bonding means  40  rotates the holding means  41  has been described in combination with the example in which the application means  22  is an independent slit coater and the ultraviolet irradiation means  31  irradiates the substrate  11  in combination with the shielding means  32 , but Embodiment 5 in which the slit coater and the ultraviolet irradiation means are integrally formed may be combined. In Embodiment 5, the example in which the voltages are applied between the substrates may similarly be combined with Embodiment 6 in which the slit coater and the ultraviolet irradiation means are integrally formed. In Embodiment 7, the example in which the thickness of the first substrate  11  is measured in advance has been described in combination with the example in which the substrate bonding means  40  rotates the holding means  41 , but the example in which the substrate bonding means  40  uses the roller means  42  may be combined to use in the adjustment of the height of the roller along with the height of the resin feeding slit. Other things such as the viscosity of the liquid resin, time and intensity of the ultraviolet irradiation, pressing force of the roller at the bonding can be selected appropriately. 
     INDUSTRIAL APPLICABILITY 
     The present invention is used to the production of the bonded member. 
     DESCRIPTION OF REFERENCE NUMERALS AND SYMBOLS 
     
         
           10 ,  10 A- 10 D manufacturing apparatus of bonded member 
           11 ,  11 E first substrate (liquid crystal panel) 
           12 ,  12 E second substrate (substrate film) 
           13 ,  13 E resin film (bonding agent) 
           14  outer peripheral section 
           15  inner section 
           17  starting point 
           17 E cutout section 
           20  resin film forming means 
           21  mounting means (table) 
           22  application means (slit coater) 
           23  scanning means 
           30  semi-curing means 
           31 ,  31 E ultraviolet irradiation means 
           32  light blocking means (shielding means) 
           40 ,  40 A- 40 D substrate bonding means 
           41 ,  41 B 1 ,  41 B 2 ,  41 E holding means 
           41 A holding part 
           41 B holding part support plate 
           42  roller means 
           43  rotating means 
           43 A hinge part 
           43 B rotational shaft 
           43 C driving part 
           44  rotational shaft position adjusting means 
           50  controller 
           51  application means driving part 
           60  direct-current power supply 
           70  substrate thickness measuring means (laser displacement gauge) 
       
    
     The use of the terms “a” and “an” and “the” and similar referents in the context of describing the invention (especially in the context of the following claims) is to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. The terms “comprising,” “having,” “including,” and “containing” are to be construed as open-ended terms (i.e., meaning “including, but not limited to,”) unless otherwise noted. Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., “such as”) provided herein, is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the invention. 
     Preferred embodiments of this invention are described herein, including the best mode known to the inventors for carrying out the invention. Variations of those preferred embodiments may become apparent to those of ordinary skill in the art upon reading the foregoing description. The inventors expect skilled artisans to employ such variations as appropriate, and the inventors intend for the invention to be practiced otherwise than as specifically described herein. Accordingly, this invention includes all modifications and equivalents of the subject matter recited in the claims appended hereto as permitted by applicable law. Moreover, any combination of the above-described elements in all possible variations thereof is encompassed by the invention unless otherwise indicated herein or otherwise clearly contradicted by context.