JP6079003B2 - Glass film laminate - Google Patents

Description

  The present invention relates to a glass film laminate in which a glass film is laminated on a support substrate, and more particularly to a glass film laminate capable of preventing breakage of the glass film and improving handling properties.

  In general, glass plates have been conventionally used for electronic displays, architecture, furniture decoration, electronic devices, semiconductor devices, body members, and the like. Among these, in color filters used in electronic displays such as liquid crystal displays, electronic paper, and organic EL displays, a sheet-like glass plate is generally used as a substrate, and a plurality of colors are used on the glass plate. Pixels are formed in a pattern to produce a color filter. Further, a sheet-like glass plate is also used for a TFT substrate or an electrode substrate, an organic EL display element substrate, a solar cell, or the like which is a counter substrate of a color filter.

  By the way, with recent advances in glass manufacturing technology, a glass film having a thickness of about 100 μm has been manufactured. The glass film having such a thickness has flexibility. For this reason, the glass film can be wound into a roll and can be used in a roll-to-roll process. For example, when such a glass film is used as a substrate for a color filter, the color film can be continuously produced by feeding the glass film from a roll on which the glass film is wound. In this case, production efficiency can be improved as compared with the case of using a sheet-like glass plate. However, since the glass film is thin, there is a problem that the impact resistance is lowered and the glass film is easily broken during the manufacturing process.

  As a countermeasure against such a problem, a glass film laminate in which a plastic film is laminated on a glass film in order to protect the glass film is known (for example, see Patent Documents 1 to 4).

Japanese Patent No. 4326635 JP 2011-107240 A Japanese Patent No. 4384356 JP 2011-121320 A

  Among these, in patent document 1, the plastic film is provided over the whole on one side of the glass film. However, in this case, the other surface of the glass film is exposed throughout. For this reason, the impact resistance of the glass film becomes a problem, and the glass film may be damaged.

  Moreover, in patent document 2, the thermoplastic resin layer is each provided in the both surfaces of the film-form inorganic glass over the whole. However, in this case, it is difficult to form a new layer such as a pixel for a color filter on the inorganic glass with the thermoplastic resin layer provided, and there is a problem in handling.

  Moreover, in patent document 3, the resin layer is formed so that the edge part of one surface of a glass sheet may be covered, and the center part of the said one surface of a glass sheet is exposed. However, here, the other surface of the glass sheet is exposed throughout. For this reason, the impact resistance of the glass sheet becomes a problem, and the glass sheet may be damaged.

  Furthermore, in Patent Document 4, a support sheet sticks out of the glass film on one surface of the glass film, and a protective sheet is laminated on the other surface of the glass film so as to cover the edge of the glass film. A glass film laminate is described. However, here, the protective sheet is not attached to the glass film. Thereby, when winding up or unwinding a glass film laminated body, or during the manufacturing process of a color filter, possibility that a protection sheet will peel off is considered. When the protective sheet is peeled off, there is a possibility that it may become an obstacle to processing in each step during the coating step, the exposure step, the development step, and the like, and the handleability of the glass film laminate becomes difficult. Moreover, since the protective sheet and the glass film are not adhered, the portion of the protective sheet that overlaps the glass film is easily turned over. When the portion of the protective sheet is turned over, the entire protective sheet is easily peeled off. If the entire protective sheet is peeled off, the glass film may be damaged.

  This invention is made | formed in view of such a point, and it aims at providing the glass film laminated body which can improve the handleability while preventing the failure | damage of a glass film.

  The present invention includes a glass film, a support base provided on one surface of the glass film, a side film provided on side edges on both sides in the width direction of the other surface of the glass film, And the side film is separated from the support base material.

  In addition, in the glass film laminated body mentioned above, it is preferable that the said support base material has the width | variety corresponding to the width | variety of the said glass film.

  Moreover, in the glass film laminated body mentioned above, it is preferable that the said support base material is arrange | positioned so that it may protrude on the width direction both sides of the said glass film.

  Moreover, in the glass film laminated body mentioned above, the side surface located in the width direction outer side of the said glass film among the side surfaces of the width direction both sides of the said side part film is arrange | positioned on the same plane as the corresponding side surface of the said glass film. It is preferable.

  Moreover, the glass film laminated body mentioned above WHEREIN: It is preferable that the said side part film is arrange | positioned so that it may protrude in the width direction outer side from the said side edge part to which the said glass film respond | corresponds.

  Moreover, in the glass film laminated body mentioned above, the side surface located in the width direction outer side of the said glass film among the side surfaces of the width direction both sides of the said side part film is arrange | positioned inside the width direction from the corresponding side surface of the said glass film. It is preferable.

  Moreover, the glass film laminated body mentioned above WHEREIN: It is preferable that the said support base material is affixed on the said glass film so that peeling is possible via a support adhesion layer.

  Moreover, in the glass film laminated body mentioned above, it is preferable that the said support base material is in contact with the said glass film.

  Moreover, the glass film laminated body mentioned above WHEREIN: It is preferable that the said side part film is affixed on the said glass film so that peeling is possible via a side part adhesion layer.

  Moreover, in the glass film laminated body mentioned above, it is preferable that the said side part film is in contact with the said glass film.

  According to the present invention, it is possible to prevent breakage of the glass film and improve handleability.

FIG. 1 is a diagram showing an example of a cross-sectional configuration of a color filter in the first embodiment of the present invention. FIG. 2 is a diagram showing a cross-sectional configuration of the glass film laminate in the first embodiment of the present invention. FIG. 3 is a diagram illustrating an example of a cross-sectional configuration of a pixel-attached glass film laminate for a color filter. FIG. 4 is a diagram showing an example of a glass film laminate manufacturing apparatus in the first embodiment of the present invention. FIG. 5 is a diagram showing a cross-sectional configuration of the glass film laminate in the second embodiment of the present invention. FIG. 6 is a diagram showing a cross-sectional configuration of the glass film laminate in the third embodiment of the present invention. FIG. 7 is a diagram showing a cross-sectional configuration of the glass film laminate in the fourth embodiment of the present invention. FIG. 8 is a diagram illustrating an example of a glass film laminate manufacturing apparatus in the fourth embodiment of the present invention.

  Embodiments of the present invention will be described below with reference to the drawings. In the drawings attached to the present specification, for the sake of illustration and ease of understanding, the scale, the vertical / horizontal dimension ratio, and the like are appropriately changed and exaggerated from those of the actual ones.

(First embodiment)
The glass film laminated body by this Embodiment is demonstrated using FIG. 1 thru | or FIG.

  First, the color filter which uses the glass film of a glass film laminated body as a board | substrate is demonstrated. As shown in FIG. 1, the color filter 1 in the present embodiment includes a glass film 12 and red pixels 2, green pixels 3, and blue pixels 4 provided on the glass film 12.

  Usually, a black matrix 5 patterned in a matrix shape is provided on the glass film 12, and each pixel 2, 3, 4 is formed in each opening defined by the black matrix 5 on the glass film 12. Has been. That is, in each opening of the black matrix 5, a red pixel 2, a green pixel 3, a red (R) pixel photosensitive material, a green (G) pixel photosensitive material, and a blue (B) pixel photosensitive material. And the blue pixel 4 is formed. The arrangement of the pixels 2, 3, 4 is not shown, but may be a known arrangement such as a stripe arrangement, a delta arrangement (triangle arrangement), a square arrangement (four pixel arrangement), or the like. Thus, one display pixel on the screen is formed by three adjacent pixels having different colors. A yellow pixel (not shown) or the like may be added to form four or more color pixels. Further, as the photosensitive material for forming each pixel 2, 3, and 4, a pigment dispersion type photosensitive resin composition containing a pigment of each color, a solvent, and a bonding resin (binder) can be used. As the photosensitive material for forming 5, a photosensitive resin composition in which a black pigment having a light shielding property is dispersed can be used.

  These pixels 2, 3 and 4 are covered with a protective layer 6 as shown in FIG. A transparent electrode film 7 made of indium tin oxide (ITO) is formed on the protective layer 6.

  Such a color filter 1 is combined with, for example, a liquid crystal element including a switching element such as a TFT and a liquid crystal layer arranged corresponding to each of the pixels 2, 3, and 4, and a surface light source. ) Or electronic paper. In this configuration, the liquid crystal is controlled by the switching element to function as a shutter, and emits light from the surface light source only through pixels of a desired color. In this way, a color image is displayed on the screen. The configuration in FIG. 1 is an example, and is appropriately changed depending on the type of display and the operation principle of the display element. For example, a configuration in which the black matrix 5 is not provided or a configuration in which the transparent electrode film 7 is not provided. is there.

  The color filter 1 having the glass film 12 described above can be manufactured using the glass film laminate 10 (see FIG. 2) having the glass film 12.

  Then, the glass film laminated body 10 in this Embodiment is demonstrated using FIG. The glass film laminate 10 includes a glass film 12, a support substrate 11 provided on one surface of the glass film 12 (hereinafter referred to as a lower surface for convenience), and the other surface of the glass film 12 (hereinafter referred to as convenience for convenience). Two side films 15 provided on the upper surface). A support adhesive layer 13 is interposed between the support substrate 11 and the glass film 12, and the support substrate 11 is detachably attached to the glass film 12 via the support adhesive layer 13.

  The support base 11 has a width corresponding to the width of the glass film 12, that is, a width substantially the same as that of the glass film 12. In other words, the side surfaces 11a on both sides in the width direction of the support base 11 are on the same plane as the corresponding side surfaces 12a of the glass film 12, that is, the stacking direction of the glass film laminate 10 (more specifically, the upper side in FIG. Alternatively, they are arranged at substantially the same position in plan view as viewed from below. In this case, the support substrate 11 does not protrude from both sides of the glass film 12 in the width direction, and the entire support substrate 11 is provided on the lower surface of the glass film 12. The support adhesive layer 13 has a width corresponding to the width of the support substrate 11, that is, substantially the same width as the support substrate 11, and the support adhesive layer 13 is on both sides in the width direction of the glass film 12. It does not protrude. Here, the width means the horizontal dimension in FIG. 2 and the horizontal dimension orthogonal to the transport direction of the belt-like support base 11 and the belt-like glass film 12 in FIG. Moreover, the same plane is not limited to the meaning that two side surfaces (here, the side surface 11a of the support base material 11 and the side surface 12a of the glass film 12) are strictly arranged on the same plane. It is used to include the case where the two side surfaces are displaced due to manufacturing errors or the like to such an extent that it can be regarded as a flat surface.

  In the present embodiment, the support base 11 is formed of a plastic film having flexibility as will be described later, and compensates for weakness against impact, local pressurization, and strain on the glass film 12. This is for reinforcing the film 12. That is, when a single glass film 12 is wound up with a foreign substance involved, the glass film 12 may be easily broken due to local impact, pressurization, scratches, or the like. On the other hand, like this Embodiment, the glass substrate 12 is reinforced by sticking the support base material 11 to the glass film 12, and the damage of the glass film 12 is prevented. Further, even when the glass film 12 is broken, the supporting base material 11 is stuck to the glass film 12 to prevent scattering of glass fragments and the like.

  The side film 15 is provided on the side end portions 12 b on both sides in the width direction on the upper surface of the glass film 12, and is separated from the support base material 11. Here, the side end portion 12b of the glass film 12 is an end portion having a predetermined width located on both sides in the width direction of the glass film 12 when the glass film laminate 10 is viewed from above in FIG. It is an area | region, Comprising: When it sees in a cross section, the area | region which adjoins the side surface 12a located in the both sides of the width direction of the glass film 12 is shown. In the region between the two side end portions 12b, the respective color filter pixels 2, 3, 4, etc. are formed (see FIG. 3). That is, the side end portion 12b can be said to be an area located on the outer side in the width direction with respect to an area (corresponding to an exposed area 17 described later) in which each pixel 2, 3, 4 and the like for the color filter is formed. The predetermined width described above corresponds to, for example, a width dimension of 1 mm from the side surface 12a of the glass film 12 even in the minimum case, and even when the width dimension of the glass film 12 is set to L even in the maximum case. It corresponds to the width dimension that can be expressed as L / 4.

  The side film 15 is configured separately from the support base material 11, does not overlap with the support base material 11, and does not contact the support base material 11. Specifically, the side surface 15a located on the outer side in the width direction of the glass film 12 among the side surfaces 15a and 15b on both sides in the width direction of the side film 15 is on the same plane as the corresponding side surface 12a of the glass film 12, that is, It arrange | positions in the position substantially corresponded by planar view seen from the lamination direction (more specifically, the upper direction or the downward direction in FIG. 2) of the glass film laminated body 10. FIG. In this case, the side film 15 does not protrude outward in the width direction from the side end portion 12 b of the glass film 12, and the entire side film 15 is provided on the upper surface of the glass film 12. In this way, the entire side surface 12a of the glass film 12 is exposed outward. Here, “the side film 15 is separated from the support base material 11” means a state in which the side film 15 is not in direct contact with the support base material 11. It is used to mean a state in which at least a part of the 12 side surfaces 12a is exposed. That is, in the form shown in FIG. 2, since the side film 15 does not protrude outward in the width direction from the side end part 12b of the glass film 12, the whole side surface 12a of the glass film 12 is exposed to the outside. Is shown. However, not only in this form, the side film 15 protrudes outward in the width direction from the side end portion 12b of the glass film 12 (see FIG. 6), and the protruding portion is bent and part of the side surface 12a of the glass film 12 is bent. A form in which a part of the side surface 12a of the glass film 12 is exposed to the outside is also included in the meaning of the phrase “the side film 15 is separated from the support substrate 11”.

  Further, the side film 15 is detachably attached to the side end 12 b of the glass film 12 via the side adhesive layer 16. The side adhesive layer 16 has a width corresponding to the width of the side film 15, i.e., substantially the same width as the side film 15, and the side adhesive layer 16 is a side end 12 b of the glass film 12. It does not protrude from the width direction outside.

  As shown in FIG. 2, the two side films 15 are separated from each other, and an exposed area 17 exposed outward is formed between the two side films 15 on the upper surface of the glass film 12. Yes. As shown in FIG. 3, the color filter pixels 2, 3, 4, etc. are formed in the exposed region 17.

  Next, the glass film laminated body 1a with a pixel for color filters is demonstrated using FIG. The pixel-attached glass film laminate 1a for a color filter corresponds to an intermediate product when the color filter 1 is produced using the glass film laminate 10, and includes the glass film laminate 10 described above, A plurality of color pixels 2, 3, 4 and a black matrix 5 for color filters provided on the glass film 12 of the glass film laminate 10 are provided. Among these, each pixel 2, 3, 4 is covered with a protective layer 6, and a transparent electrode film 7 is formed on the protective layer 6. In the glass film laminated body 1a with a pixel for the color filter, the side film 15 is peeled from the glass film 12 with the side adhesive layer 16, and the support base material 11 is made of glass with the support adhesive layer 13. By peeling off from the film 12, the color filter 1 shown in FIG. 1 is obtained. In addition, when using the support base material 11 and the side part film 15 with a small phase difference in the color filter 1 for liquid crystal displays, it is not always necessary to peel the support base material 11 and the side part film 15. In addition, the color filter 1 may be configured with the side film 15 attached. Furthermore, in a display that does not use polarized light as a display principle, such as an EL display or electronic paper, the color filter 1 may be configured with the support base material 11 and the side film 15 attached, regardless of the phase difference amount. .

  Next, the material of each component will be described.

  The material used for the support substrate 11 is a plastic material such as polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyethersulfone (PES), polyimide (PI), polyetheretherketone (PEEK), polycarbonate. (PC), polyethylene (PE), polypropylene (PP), polyphenylene sulfide (PPS), polyetherimide (PEI), cellulose triacetate (CTA), cyclic polyolefin (COP), polymethyl methacrylate (PMMA), polysulfone (PSF) And synthetic resins such as polyamideimide (PAI), nobornene resin, and allyl ester resin. Moreover, the thickness of the support base material 11 is 3-200 micrometers, Preferably, it is preferable that they are 5 micrometers-200 micrometers. As a result, the support base 11 can be stably manufactured, the strength for reinforcing the glass film 12 can be increased, and the rigidity of the support base 11 is increased so that the glass having the support base 11 is provided. It can prevent that winding of the film laminated body 10 becomes difficult.

  The material used for the glass film 12 is not particularly limited as long as it can be formed into a film shape, but soda lime glass and alkali-free glass generally used for display applications are preferable. Of these, alkali-free glass that is colorless and has high transparency, has a low coefficient of linear thermal expansion, and is difficult to deform is preferable. Moreover, it is preferable that the thickness of the glass film 12 is 5-300 micrometers. By setting the thickness of the glass film 12 to 5 μm or more, the glass film 12 can be stably manufactured, and the strength of the glass film 12 can be increased. Moreover, by setting the thickness of the glass film 12 to 300 μm or less, it is possible to prevent the glass film 12 having increased rigidity from being difficult to wind the glass film laminate 10 having the glass film 12.

  Although it will not specifically limit as a material used for the side part film 15 if the glass film laminated body 10 which has the side part film 15 by the thickness mentioned later can be wound up in roll shape, The material similar to the support base material 11 is used. It is preferable. The thickness of the side film 15 is preferably 3 to 250 μm depending on the thickness of the glass film 12 to be used. By setting the thickness of the side film 15 to 3 μm or more, the side film 15 can be stably manufactured, and the strength for reinforcing the glass film 12 can be increased. Further, by setting the thickness of the side film 15 to 250 μm or less, it is possible to prevent the side film 15 from increasing in rigidity and making it difficult to wind the glass film laminate 10 having the side film 15.

  The material used for the support adhesive layer 13 and the side adhesive layer 16 is not particularly limited as long as it has flexibility, but an acrylic or styrene resin material is preferable. Moreover, it is preferable that the thickness of the support adhesion layer 13 and the side part adhesion layer 16 is 5-200 micrometers. By setting the thickness of each adhesive layer 13, 16 to 5 μm or more, it is possible to ensure sufficient adhesive force for attaching the support base material 11 or the side film 15 to the glass film 12. Moreover, the fall of the optical characteristic as the glass film laminated body 10 can be prevented by making thickness of each adhesion layer 13 and 16 into 200 micrometers or less. For example, a decrease in transmittance, coloring, and an increase in retardation can be prevented. Further, the supporting adhesive layer 13 and the side adhesive layer 16 may be peeled and adhered to the glass film 12 with a peeling force capable of preventing the glass film 12 from being damaged when peeling from the glass film 12. preferable. As a result, the support adhesive layer 13 and the side adhesive layer 16 can be easily separated from the glass film 12, respectively. The peelable peel force in this case is 5 N / 25 mm or less when a 90-degree peel test is performed at a peel rate of 200 mm / min in an environment of a temperature of 24 ° C. and a humidity of 40% according to JIS Z 0237. It is preferable that it is 1N / 25mm or less especially.

  Next, the manufacturing apparatus 20 of the glass film laminated body in this Embodiment is demonstrated using FIG. Here, the support base material 11 with the support adhesive layer 13 in which the support adhesive layer 13 was affixed beforehand on one side, and the side with the side adhesive layer 16 in which the side part adhesive layer 16 was affixed beforehand on one side The case where the glass film laminated body 10 is manufactured using the part film 15 is demonstrated.

  As shown in FIG. 4, the glass film laminate manufacturing apparatus 20 includes a support base material supply unit 21 to which a roll of the support base material 11 around which the belt-like continuous support base material 11 is wound, and a belt-like continuous shape. A glass film supply unit 22 to which a roll of the glass film 12 around which the glass film 12 is wound is attached. The support base material supply part 21 and the glass film supply part 22 are arrange | positioned in the positional relationship so that the support base material 11 does not protrude in the width direction both sides of the glass film 12 in the 1st lamination | stacking press part 25 mentioned later. A cover sheet (release paper) 18 is affixed to the support adhesive layer 13 provided on one surface of the support substrate 11 so as to be peeled off. The portions of the base material 11 are prevented from sticking to each other by the support adhesive layer 13. For this reason, the peeling part 23 for peeling the cover sheet 18 from the supporting base material 11 fed out from the supporting base material supply part 21 and the peeled cover sheet 18 are wound around the supporting base material supply part 21. A collecting unit 24 is provided for collecting and collecting.

  On the downstream side of the support base material supply unit 21 and the glass film supply unit 22 in the conveyance direction, a first lamination pressing unit 25 for attaching the support base material 11 and the glass film 12 is provided. In this 1st lamination | stacking press part 25, the glass film 12 was laminated | stacked on the support base material 11 via the support adhesion layer 13, and was affixed, and the support base material 11, the support adhesion layer 13, and the glass film 12 were laminated | stacked. A laminated intermediate 40 is obtained.

  On the downstream side in the transport direction of the first laminated pressing portion 25, a second laminated pressing portion 29 for attaching the side film 15 to the laminated intermediate 40 is provided. In the second laminated pressing portion 29, the side film 15 is attached to the side end portion 12 b of the glass film 12. Thus, the glass film laminated body 10 shown in FIG. 2 is obtained.

  The side film 15 is conveyed from the two side film supply units 26 to the second lamination pressing unit 29. The two side film supply units 26 are provided so as to be separated from each other in the width direction of the side film 15 (direction perpendicular to the paper surface of FIG. 4). In FIG. 4, only one side film supply unit 26 is shown.

  A roll of the side film 15 around which the belt-like continuous side film 15 is wound is attached to the side film supply unit 26. The two side film supply units 26 are arranged at positions where the side film 15 is attached to the side end 12 b of the glass film 12 in the second lamination pressing unit 29. A cover sheet (release paper) 19 is detachably attached to the side adhesive layer 16 provided on one surface of the side film 15, and is adjacent to each other in the roll of the side film 15. The portions of the side film 15 are prevented from sticking together by the side adhesive layer 16. For this reason, the peeling part 27 for peeling the cover sheet 19 from the side film 15 fed out from the side film supply part 26 and the peeled cover sheet 19 are wound in the vicinity of the side film supply part 26. A collecting unit 28 is provided for collecting and collecting.

  On the downstream side of the second lamination pressing part 29, a laminated body winding part 30 for winding the glass film laminated body 10 in a roll shape is provided. In this laminated body winding part 30, the glass film laminated body roll 45 by which the glass film laminated body 10 was wound up by the cylindrical core 45a is formed.

  Next, the manufacturing method of the glass film laminated body of this Embodiment which consists of such a structure is demonstrated using FIG.

  First, a belt-like continuous support substrate 11 with a support adhesive layer 13, a belt-like continuous glass film 12, and a belt-like continuous side film 15 with a side adhesive layer 16 are prepared. That is, in the manufacturing apparatus 20 of a glass film laminated body, the roll of the support base material 11 is attached to the support base material supply part 21, the roll of the glass film 12 is attached to the glass film supply part 22, and the roll of the side film 15 Is attached to the side film supply unit 26.

  Subsequently, the support substrate 11 with the support adhesive layer 13 is fed out from the support substrate supply unit 21, the glass film 12 is fed out from the glass film supply unit 22, and is conveyed to the first lamination pressing unit 25. At this time, the cover sheet 18 on the support adhesive layer 13 drawn out from the support base material supply unit 21 is peeled off from the support adhesive layer 13 by the peeling unit 23, wound around the recovery unit 24, and collected. In this way, the support base material 11 with the support adhesive layer 13 from which the cover sheet 18 has been peeled is conveyed to the first laminated pressing portion 25.

  Next, in the 1st lamination | stacking press part 25, the glass film 12 is laminated | stacked and affixed on the support base material 11 via the support adhesion layer 13, and the support base material 11, the support adhesion layer 13, and the glass film 12 are laminated | stacked. Thus obtained laminated intermediate 40 is obtained. The obtained laminated intermediate 40 is conveyed to the second laminated pressing unit 29.

  On the other hand, the side film 15 with the side adhesive layer 16 is fed out from the side film supply unit 26 and conveyed to the second lamination pressing unit 29. At this time, the cover sheet 19 on the side adhesive layer 16 fed out from the side film supply unit 26 is peeled off from the side adhesive layer 16 by the peeling unit 27, wound up and collected by the collecting unit 28. . In this manner, the side film 15 with the side adhesive layer 16 from which the cover sheet 19 has been peeled is conveyed to the second laminated pressing part 29.

  Next, the side film 15 is affixed to the lamination intermediate 40 via the side adhesive layer 16 in the second lamination pressing part 29. That is, the side film 15 is attached to the side end 12 b of the glass film 12 via the side adhesive layer 16. Thus, the glass film laminated body 10 shown in FIG. 2 is obtained.

  Then, the obtained glass film laminated body 10 is conveyed by the laminated body winding part 30, and is wound up by the core 45a. Thus, the glass film laminated body roll 45 is formed.

  When manufacturing the color filter 1 using the glass film laminated body 10 obtained in this way, first, the glass film laminated body 10 is unwound from the glass film laminated body roll 45, and the exposed region on the glass film 12 is exposed. 17 (see FIG. 2 and FIG. 3), the photosensitive material for pixels is applied, and a series of steps of drying (pre-baking), exposure, development and curing (post-baking) is repeated, so that each color is formed on the glass film 12. Pixels 2, 3, 4 and a black matrix 5 are formed. Subsequently, a protective layer 6 covering each of the pixels 2, 3, and 4 is formed, and a transparent electrode film 7 is formed on the protective layer 6 to obtain a pixel-attached glass film laminate 1a for a color filter shown in FIG. It is done. Thereafter, the side film 15 is peeled from the glass film 12 with the side adhesive layer 16, and the support base material 11 is peeled from the glass film 12 with the support adhesive layer 13. In this way, the color filter 1 shown in FIG. 1 is obtained.

  As described above, according to the present embodiment, the side film 15 is provided on the side end portion 12 b of the glass film 12, and the side film 15 is attached to the glass film 12 via the side adhesive layer 16. It is attached. Accordingly, the side end portion 12 b of the glass film 12 can be protected by the side portion film 15. Similarly, the glass substrate 12 can be protected by the support substrate 11 by attaching the support substrate 11 to the glass film 12 via the support adhesive layer 13. As a result, the impact resistance of the glass film laminate 10 can be improved, and the glass film 12 can be prevented from being damaged. For example, while the glass film laminate 12 is being transported during the color filter manufacturing process, the support substrate 11 or the side film 15 is interposed between the glass film 12 and a transport metal roll (not shown). Can be made. For this reason, the glass film 12 is protected by the support base material 11 and the side film 15, and can withstand the impact from the metal roll for conveyance.

  Moreover, according to this Embodiment, it prevents that the side film 15 peels from the glass film 12, for example during a color filter manufacturing process, because the side film 15 is affixed on the glass film 12. FIG. Can do. For this reason, it can prevent that the side part film 15 becomes an obstacle of the process of each process in the case of a coating process, an exposure process, a image development process, etc. Further, it is possible to prevent a processing solution such as a coating solution or a developer from entering between the glass film 12 and the side film 15. As a result, the handleability of the glass film laminate 10 can be improved. In particular, since the support base material 11 does not protrude from the glass film 12 on both sides in the width direction, the support base material 11 can be further prevented from peeling off from the glass film 12. Similarly, since the side film 15 does not protrude from the side end portion 12 b of the glass film 12 to the outside in the width direction, the side film 15 can be further prevented from being peeled off from the glass film 12.

  In addition, according to the present embodiment, as described above, since the support base 11 does not protrude from both sides in the width direction of the glass film 12, the support interposed between the glass film 12 and the support base 11 is supported. The adhesive layer 13 can be prevented from protruding to both sides in the width direction of the glass film 12. Similarly, since the side film 15 does not protrude outward in the width direction from the side end 12b of the glass film 12, the side adhesive layer 16 interposed between the glass film 12 and the side film 15 is a glass film. It is possible to prevent the twelve side end portions 12b from protruding outward in the width direction. For this reason, in the glass film laminated body roll 36, it can prevent that the parts of the glass film laminated body 10 adjacent to each other adhere by the support adhesion layer 13 or the side part adhesion layer 16. FIG. As a result, when the glass film laminate 10 is wound into a roll shape, a member such as release paper for preventing the portions of the glass film laminate 10 adjacent to each other from sticking to each other becomes unnecessary, and the glass film laminate 10 Can be improved.

  Moreover, according to this Embodiment, the side part film 15 is affixed on the glass film 12 so that peeling is possible. Moreover, the support base material 11 is affixed on the glass film 12 so that peeling is possible. Thereby, after forming the pixel 2, 3, 4, etc. for color filters on the glass film 12, the side film 15 and the support base material 11 can be easily peeled from the glass film 12. For this reason, it can prevent that the glass film 12 breaks at the time of peeling of the side part film 15 and the support base material 11. FIG. In particular, the side film 15 is separated from the support substrate 11. Thereby, the side film 15 can be easily peeled from the glass film 12, and the glass film 12 can be further prevented from being damaged.

  Further, according to the present embodiment, the side films 15 are respectively provided on the side end portions 12 b on both sides of the glass film 12, and the two outer side films 15 on the upper surface of the glass film 12 are arranged between the two side films 15. An exposed region 17 that is exposed in the direction is formed. Thereby, the pixel 2, 3, 4 etc. for color filters can be formed on the glass film 12 in the state by which the support base material 11 and the side part film 15 were affixed on the glass film 12. FIG. That is, it is possible to prevent breakage of the glass film 12 on which the color filter pixels 2, 3, 4, etc. are formed, and to improve the handleability of the glass film laminate 10. As a result, the production efficiency of the color filter 1 using the glass film laminate 10 can be improved.

  In the above-described embodiment, the support substrate 11 is attached to the glass film 12 in the first lamination pressing portion 25 to form the lamination intermediate 40, and the formed lamination intermediate 40 is wound up. The example which is conveyed to the 2nd lamination | stacking press part 29, and the side part film 15 is affixed on the glass film 12 was demonstrated. However, the present invention is not limited to this, and the laminated intermediate 40 obtained in the first laminated pressing portion 25 is once wound up in a roll shape, and then the laminated intermediate 40 is fed out so that the side film 15 is made of glass. You may make it affix on the film 12. FIG. Also in this case, the glass film laminated body 10 shown in FIG. 2 can be manufactured suitably.

  Moreover, in this Embodiment mentioned above, the example in which the support base material 11 was formed with the plastic film was demonstrated. However, the present invention is not limited to this, and the support base 11 may be formed of a metal material. Examples of the metal material include stainless steel, copper, nickel, titanium, and iron. Among these, it is preferable to use stainless steel excellent in availability and corrosion resistance. Moreover, it is preferable that the thickness of the support base material 11 in this case is 1-200 micrometers. By setting the thickness of the supporting base material to 1 μm or more, the strength for reinforcing the glass film 12 can be increased, and the supporting base material 11 can be prevented from being broken to improve the handleability. Moreover, the rigidity of the support base material 11 increases and it becomes difficult to wind the glass film laminated body 10 by making the thickness of the support base material 11 200 micrometers or less. In this case, the support base 11 is preferably formed as a foil-like or thin-film-like metal foil, but may be formed in a net shape like a metal mesh.

  Moreover, the support base material 11 may be comprised with the glass containing plastic film which has a glass cloth. Here, the glass cloth is a woven fabric formed of a large number of fine glass fibers. It does not specifically limit as a material used for this glass fiber, It can be set as the material similar to the glass film 12. FIG. Moreover, it is preferable that the fiber diameter of glass fiber is 3-24 micrometers. As a result, the strength for reinforcing the glass film 12 is increased, and it is possible to prevent the winding of the glass film laminate 10 having a glass cloth from becoming difficult. In addition, as a measuring method of the fiber diameter of glass fiber, it is suitable to measure based on JISL1095. In addition, the support base 11 in this case is obtained by impregnating a glass cloth with a plastic material, and the plastic material used here is not particularly limited. For example, an acrylic resin, an epoxy resin, Synthetic resins such as polyamide resin and phenol resin can be mentioned. Moreover, it is preferable that the thickness of the support base material 11 in this case is 10-300 micrometers. By setting the thickness of the support base 11 to 10 μm or more, the strength for reinforcing the glass film 12 can be increased. Moreover, the rigidity of the support base material 11 increases and it becomes difficult to wind the glass film laminated body 10 by making the thickness of the support base material 300 or less. In addition, the support base material 11 may be comprised only by the glass cloth, without making a plastic material impregnate.

  Moreover, in this Embodiment mentioned above, about the example in which the side surface 15a located in the width direction outer side of the glass film 12 among the side films 15 is arrange | positioned on the same plane as the corresponding side surface 12a of the glass film 12. explained. However, the present invention is not limited to this. If the side film 15 is provided on at least a part of the side end portion 12b of the glass film 12, the side surface 15a of the side film 15 is You may arrange | position inside the width direction rather than the corresponding side surface 12a. In this case, the side film 15 is drawn inward from the side surface 12 a of the glass film 12. Even in this case, the side end portion 12 b of the glass film 12 is protected by the side film 15. Is possible.

(Second Embodiment)
Next, the glass film laminated body in the 2nd Embodiment of this invention is demonstrated with FIG.

  The second embodiment shown in FIG. 5 is mainly different in that the supporting base material is disposed so as to protrude on both sides in the width direction of the glass film, and other configurations are the same as those shown in FIGS. This is substantially the same as the first embodiment. In FIG. 5, the same parts as those of the first embodiment shown in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 5, the support base 11 has a width larger than the width of the glass film 12 and is disposed so as to protrude from both sides in the width direction of the glass film 12. That is, the side surfaces 11 a on both sides in the width direction of the support substrate 11 are located on the outer side in the width direction than the corresponding side surfaces 12 a of the glass film 12. And in this Embodiment, the glass film 12 is arrange | positioned in the center part of the width direction of the support base material 11. FIG. In this way, the side regions 11b of the support base material 11 are formed on both sides of the glass film 12 in the width direction. Further, the support adhesive layer 13 having substantially the same width as the support substrate 11 also protrudes on both sides in the width direction of the glass film 12, similarly to the support substrate 11. In addition, as mentioned above, the glass film 12 is arrange | positioned in the center part of the width direction of the support base material 11, and the width | variety of each side part area | region 11b is substantially equal, However, It is limited to this. Alternatively, the width of each side region 11b may be different. That is, as long as the support base material 11 protrudes on both sides in the width direction of the glass film 12 and the side region 11b is formed, the arrangement of the glass film 12 can be arbitrary. Moreover, when winding the glass film laminated body 10 in this Embodiment in roll shape, the parts of the glass film laminated body 10 adjacent to each other are prevented from sticking to each other by the protruding part of the support adhesive layer 13. It is preferable to use a member such as a release paper.

  Thus, according to this Embodiment, it arrange | positions so that the support base material 11 may protrude on the width direction both sides of the glass film 12. FIG. In this case, the glass film 12 can be protected against an impact from obliquely outside, and the side end 12b of the glass film 12 can be more reliably protected. For this reason, the impact resistance of the glass film laminated body 10 can be further improved, and the damage of the glass film 12 can be further prevented.

(Third embodiment)
Next, the glass film laminated body in the 3rd Embodiment of this invention is demonstrated with FIG.

  The third embodiment shown in FIG. 6 is mainly different in that the side film is arranged so as to protrude outward in the width direction from the side end of the glass film. This is substantially the same as the first embodiment shown in FIG. In FIG. 6, the same parts as those of the first embodiment shown in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 6, the side film 15 is disposed so as to protrude outward in the width direction from the corresponding side end 12 b of the glass film 12. That is, the side surface 15 a located on the outer side in the width direction of the glass film 12 among the side surfaces 15 a and 15 b on both sides in the width direction of the side film 15 is located on the outer side in the width direction than the corresponding side surface 12 a of the glass film 12. . In this way, the side regions 15 c of the side film 15 are formed on both sides of the glass film 12 in the width direction. The side adhesive layer 16 having substantially the same width as the side film 15 also protrudes outward in the width direction from the corresponding side end 12 b of the glass film 12, as with the side film 15. In FIG. 6, the side regions 15 c of each side film 15 are substantially equal, but this is not restrictive, and the widths of the side regions 15 c may be different. Moreover, when winding the glass film laminated body 10 in this Embodiment in roll shape, the parts of the glass film laminated body 10 which adjoin each other stick together by the part which the side part adhesion layer 16 protruded. It is preferable to use a member such as a release paper for prevention.

  Thus, according to this Embodiment, the side part film 15 is arrange | positioned so that it may protrude from the side direction edge part 12b of the glass film 12 to the width direction outer side. In this case, the glass film 12 can be protected against an impact from obliquely outside, and the side end 12b of the glass film 12 can be more reliably protected. For this reason, the impact resistance of the glass film laminated body 10 can be further improved, and the damage of the glass film 12 can be further prevented.

(Fourth embodiment)
Next, the glass film laminated body in the 4th Embodiment of this invention is demonstrated with FIG. 7 and FIG.

  The fourth embodiment shown in FIGS. 7 and 8 is mainly different in that the supporting base material and the side film are formed by coating, and other configurations are shown in FIGS. This is substantially the same as the first embodiment shown. 7 and 8, the same parts as those of the first embodiment shown in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

  The support substrate 11 is formed of a resin material applied to the lower surface of the glass film 12. This coated resin material adheres to the lower surface of the glass film 12. That is, the support base material 11 in the present embodiment is attached in contact with the glass film 12 without interposing the support adhesive layer 13 (see FIG. 2). More specifically, the resin material forming the support base material 11 is directly attached to the glass film 12 without interposing other members such as an adhesive layer for attaching the support base material 11. .

  Similarly, the side film 15 is formed of a resin material coated on the side end 12 b of the glass film 12. This coated resin material adheres to the side end portion 12 b of the glass film 12. That is, the side film 15 in the present embodiment is attached in contact with the side end 12b of the glass film 12 without interposing the side adhesive layer 16 (see FIG. 2). More specifically, the resin material forming the side film 15 is directly attached to the glass film 12 without interposing other members such as an adhesive layer for attaching the side film 15. .

  As a resin material for forming the support base 11 and the side film 15, for example, it is preferable to use a photocurable resin. In this case, the coated resin material can be cured by photocuring treatment, and the cured resin material can be softened or deformed even in various environments during the color filter manufacturing process. Can be prevented. As the photocurable resin, an acrylic resin excellent in availability can be suitably used. In addition, when it is difficult to peel (remove) the support base material 11 and the side film 15 from the glass film 12, the resin material forming the support base material 11 and the side film 15 reduces the optical characteristics. In order to prevent this, it is preferable to have transparency. This makes it possible to configure the color filter 1 with the support base 11 and the side film 15 attached to the glass film 12.

  Next, the manufacturing apparatus 20 of the glass film laminated body in this Embodiment is demonstrated using FIG. Here, description of substantially the same parts as those of the glass film laminate manufacturing apparatus 20 shown in FIG. 4 is omitted.

  In FIG. 8, the first resin material 60 for forming the support substrate 11 is applied to the glass film 12 conveyed from the glass film supply unit 22 on the downstream side in the conveyance direction of the glass film supply unit 22. One resin coating part 50 is provided. The first resin coating unit 50 is configured to apply the first resin material 60 to the first surface (one surface) of the glass film 12. As the coating method, for example, a bar coating method, a knife coating method, a roll coating method, a blade coating method, a die coating method, a gravure coating method, or the like can be suitably used.

  On the downstream side of the first resin coating unit 50, a first light irradiation unit 51 that irradiates the coated first resin material 60 with light L, preferably UV light, is provided. In the 1st light irradiation part 51, the light L is irradiated to the 1st resin material 60 on the glass film 12, the said 1st resin material 60 hardens | cures, and the 1st resin material 60 is solidified in a film form. Thereby, the laminated intermediate body 40 by which the support base material 11 and the glass film 12 by this Embodiment were laminated | stacked is obtained.

  On the downstream side of the first light irradiation unit 51, guide rollers 52 and 53 that reverse the top and bottom of the laminated intermediate body 40 are provided. Thereby, while the 1st surface in which the support base material 11 of the glass film 12 was formed is arrange | positioned below, a 2nd surface (other surface) is arrange | positioned above.

  On the downstream side of the guide rollers 52, 53, there is a second resin coating portion 54 for applying a second resin material 61 for forming the side film 15 on the glass film 12 of the inverted laminated intermediate 40. Is provided. The second resin coating portion 54 is configured to apply the second resin material 61 onto the side end portion 12 b of the second surface of the glass film 12. As a coating method, the same method as the 1st resin coating part 50 can be used.

  On the downstream side of the second resin coating section 54, a second light irradiation section 55 for irradiating the coated second resin material 61 with light L, preferably UV light, is provided. In the 2nd light irradiation part 55, the light L is irradiated to the 2nd resin material 61 on the glass film 12, the said 2nd resin material 61 hardens | cures, and the 2nd resin material 61 is solidified in a film form. Thereby, the side film 15 by this Embodiment is formed, and the glass film laminated body 10 shown in FIG. 7 is obtained.

  Thus, according to this Embodiment, the support base material 11 and the side part film 15 are formed with the apply | coated resin material, and are contacting and adhering to the glass film 12. FIG. By this, the adhesiveness of the support base material 11 and the glass film 12, and the adhesiveness of the side part film 15 and the glass film 12 can be improved. For this reason, it can prevent further that the support base material 11 and the side part film 15 peel from the glass film 12, and can improve the handleability of the glass film laminated body 10 further.

  In the above-described embodiment, an example in which a photocurable resin is used for the first resin material 60 and the second resin material 61 has been described. However, the present invention is not limited to this, and a thermosetting resin can be used for the resin materials 60 and 61. In this case, the coated resin material can be cured by heat treatment, preventing the cured resin material from being softened or deformed even in various environments during the color filter manufacturing process. it can. As the thermosetting resin, an epoxy resin excellent in availability can be suitably used.

  Moreover, the side film 15 (refer FIG. 5) in 2nd Embodiment can be applied and formed like this Embodiment. Furthermore, the support substrate 11 (see FIG. 6) in the third embodiment can be formed by coating as in the present embodiment.

  The embodiments of the present invention have been described in detail above. However, it should be understood that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. .

Example 1
Confirmation of the presence or absence of breakage of the glass film 12 and the handleability of the glass film laminate 10 when forming the color filter pixels 2, 3, 4 on the glass film laminate 10 according to the second embodiment of the present invention. did.

  First, a roll of a PET film with a pressure-sensitive adhesive layer (manufactured by Nitto Denko, RP207) having a thickness of 59 μm, a width of 310 mm, and a length of 10 m was prepared as the support substrate 11. As the glass film 12, a roll of thin glass (OA-10G manufactured by Nippon Electric Glass Co., Ltd.) having a thickness of 70 μm, a width of 300 mm, and a length of 10 m was prepared. In addition, as the side film 15, two rolls of a PI film with an adhesive layer (manufactured by Nitto Denko, 360UL) having a thickness of 90 μm, a width of 20 mm, and a length of 10 m were prepared.

  Subsequently, the thin glass 12 was laminated and pasted on the support adhesive layer 13 of the PET film 11. Under the present circumstances, it arrange | positioned so that the PET film 11 might protrude on the width direction both sides of the sheet glass 12. FIG. Thereafter, the PI film 15 was attached to the side end portion 12 b of the thin glass 12 through the side adhesive layer 16. Thus, the glass film laminated body 10 shown in FIG. 5 was obtained.

  The obtained glass film laminate 10 was wound around a core 45 a having a diameter of 6 inches to form a glass film laminate roll 45.

  Next, the glass film laminated body roll 45 was set to the unwinding part of the coating apparatus, and the glass film laminated body 10 was drawn out. Then, the ink which forms the pixel for color filters was applied to the exposed area | region 17 of the sheet glass 12 of the glass film laminated body 10 extended | drawn out. At this time, it was confirmed that the thin glass 12 was not damaged. Further, it was confirmed that the PI film 15 was not peeled off from the thin glass 12.

(Comparative Example 1)
A glass film laminate was obtained in the same manner as in Example 1, except that the PI film 15 was not used and the width of the PET film 11 was small (width 302 mm). The reason why the width of the PET film 11 is reduced is to prevent the portions of the PET film 11 adjacent to each other from sticking to each other with the support adhesive layer 13 when the glass film laminate is wound up.

  The PET film 11 was affixed on the thin glass 12, and the glass film laminated body was formed, this glass film laminated body was wound up, and the glass film laminated body roll was formed. And the said glass film laminated body roll was set to the unwinding part of the coating apparatus, and the glass film laminated body was let out. Then, the ink which forms the pixel for color filters was applied to the exposed area | region 17 of the sheet glass 12 of the drawn-out glass film laminated body. At this time, it was confirmed that the thin glass 12 was cracked.

  In the above description, the example which applied the glass film laminated body by this invention to the color filter is shown. However, the present invention is not limited to this, and the glass film laminate according to the present invention may be applied to a TFT substrate or electrode substrate, a display element substrate for organic EL, or a substrate such as a solar cell, which is a counter substrate of a color filter. Is possible. Furthermore, the present invention can be applied to all existing glass products, for example, glass products used for architecture, furniture decoration, electronic devices, semiconductor devices, car body members, and the like.

DESCRIPTION OF SYMBOLS 1 Color filter 10 Glass film laminated body 11 Support base material 11a Side surface 12 Glass film 12a Side surface 12b Side edge part 13 Support adhesion layer 15 Side film 15a, 15b Side surface 16 Side part adhesion layer

Claims (8)

Glass film,
A support substrate provided on one surface of the glass film;
A side film provided on the side end on both sides in the width direction of the other surface of the glass film,
The side film is spaced apart from the support substrate ;
The said support base material has the width | variety corresponding to the width | variety of the said glass film, The glass film laminated body characterized by the above-mentioned . Side located outward in the width direction of the glass film of the both sides in the width direction of the side surface of said side films to claim 1, characterized in that it is arranged on the corresponding side flush with the glass film The glass film laminated body of description. The glass film laminate according to claim 1 , wherein the side film is disposed so as to protrude outward in the width direction from the corresponding side end of the glass film. Side located outward in the width direction of the glass film of the both sides in the width direction of the side surface of said side films to claim 1, characterized in that it is arranged in a corresponding widthwise inward from the side surface of the glass film The glass film laminated body of description. The glass substrate laminate according to any one of claims 1 to 4 , wherein the supporting substrate is detachably attached to the glass film via a supporting adhesive layer. The glass film laminate according to claim 1 , wherein the support substrate is in contact with the glass film. The glass film laminate according to any one of claims 1 to 6 , wherein the side film is detachably attached to the glass film via a side adhesive layer. The glass film laminate according to claim 2 , wherein the side film is in contact with the glass film.

Images