TW200846196A - Planar sheet and fabricating method for color filter using the planar sheet - Google Patents

Abstract

A planar sheet having sequentially laminated layer including a mold releasing layer, a substrate layer and a elastic layer, wherein the surface tension of contacting region of the mold releasing layer (23 DEG C) is smaller than or equal to 30 mN/m and the arithmetic mean roughness of the mold releasing layer in roughness curves Ra is smaller than or equal to 20 nm. The arithmetic mean roughness of the substrate layer adjacent to the mold releasing layer Ra is smaller than or equal to 50 nm. The elastic ratio of the elastic layer (23 DEG C) is between 0. 5 MPa to 20 MPa and the thickness of the elastic layer is between 0. 1mm to 0. 5 mm. The planar sheet is used to planarize a transparent resin layer and prevent transparent ink forming the transparent resin layer from transferring back during printing such that it is difficult for the transparent resin layer to have defect du to the mixing of particles. A fabricating method for color filter using the planar sheet is also provided.

Description

200846196 , Z /^c /pii IX. Description of the Invention: Technical Field The present invention relates to a flattening sheet and a method of manufacturing a color filter using the same, wherein the flattening sheet is At least a part of the transparent resin layer constituting the color filter is abutted on the surface of the colored transparent resin layer to planarize the surface of the above transparent resin layer. [Prior Art] A color filter used in a flat panel display such as a liquid crystal display (LCD) is manufactured by red (R), green (G), and blue which constitute the above liquid crystal display or the like. Color (B) A stripe pattern corresponding to each pixel and formed by a transparent ink which has been colored into the above-described respective colors, is regularly arranged and printed on a transparent substrate in units of pixels to form a transparent resin layer. . However, in the strips of colored strips formed by printing the transparent inks colored in the above-mentioned respective colors in various printing directions, there is a problem in that the ink is squeaked in each of the inks, and the two dogs are low in the center. Since the shape is formed, the surface of the transparent resin layer which is an aggregate of the stripe patterns of the respective colors is formed into a concavo-convex shape corresponding to the above-mentioned strip shape (4) protruding shape, which causes the light to be diffusely reflected, thereby causing a contrast of The drop 'for example, for the LCD, a liquid crystal response is generated. Therefore, various technical studies have been conducted in order to planarize the surface of the transparent resin layer formed on the substrate. For example, in Japanese Patent Laid-Open No. 28_4, JP03-156419A (1991), 裎-从, 朴J甲 uncovers a technique using electron beam hard 6 200846196 ^ /2δ / pn type, ultraviolet curing type, etc. The transparent ink is used as the transparent ink of the strip-shaped pattern forming material, and is laminated on the transparent resin layer formed by printing the respective strip patterns using the transparent ink, and is laminated on the flat plate-shaped pressing member such as a film or a glass substrate. The surface of the transparent resin layer is flattened, and an electron beam or an ultraviolet ray is irradiated in this state to cure the transparent ink, and the pressing member is peeled off. Further, a technique disclosed in Japanese Patent No. JP03_154003A (1991), which is formed by forming a strip-like pattern by a thermosetting transparent ink and thermally hardening it, is laminated on a transparent resin layer composed of the above-mentioned respective strip patterns In the state where the film is a pressing member, the film is uniformly pressed by air pressure (also pressure), thereby flattening the surface of the transparent resin layer. However, in the method of achieving flattening by the flat pressing member disclosed in the above document, there is a problem that when the pressing member is superposed on the surface of the transparent resin layer, bubbles are likely to remain between the two, if not removed. When the residual bubbles are flattened, the defects of the bubble marks remain on the surface of the flat transparent resin layer. * In order to prevent the bubble from remaining, for example, the order in which the glass substrate as the pressing member is kneaded on the surface of the transparent resin layer is specified in Japanese Patent No. 03-156419A (1991), but in order to carry out the above sequence, the above documents must be used. The dedicated device disclosed in the drawings works cautiously, resulting in reduced productivity and increased cost of the color filter. On the other hand, a technique is disclosed in Japanese Patent No. 2,297,502 (1990), in order to utilize a lithographic offset printing method.

200846196 Z/Z6/pn The surface of the board is printed with a strip pattern, and the circumference of the board is wrapped with an offset blanket. The surface of the rubber coating is transparently layered after printing. In the state of contact, the above-mentioned stick is rolled on the = transparent resin layer, thereby realizing the flatness of the surface of the transparent wax layer, disclosed in Japanese Patent No. H08-075914A (19%) - Technology: Transparent; after printing a transparent ink containing no coloring agent on the layer, the gold ship which has been subjected to the treatment on the outer peripheral surface is used, and the flattening process is performed in the same manner as described above. Further, in Japanese Patent Publication No. 8_234〇13a (i996), after the release treatment is performed on the outer peripheral surface, the transparent ink which is a strip pattern forming material is supplied on the outer peripheral surface of the light, and In this case, the n is rolled on the substrate, whereby the supplied transparent ink is printed on the surface of the substrate to form a stripe pattern, and flat processing is performed. ~ In the method of performing flattening treatment by a roll disclosed in the above document, when the roll is continuously rolled on the transparent resin layer, the transparent contact layer may be flattened to cause residual Defect problem. The blister:,, and the use of the roll wrapped with the rubber coating is the same as the one used in the lithographic pattern printing method disclosed in Japanese Patent No. 2,297,502 (1990). Considering the above-mentioned rubber coating layer month: it is sufficient to receive the transparent ink from the plate, and the transparent oil can be applied to the surface of the substrate, thereby setting the surface of the rubber coating layer relative to the transparent ink (4) wetness The soft surface of the entire surface of the rubber (four) layer is soft, such as 200846196 272^7pil. Therefore, when the flattening treatment is performed, the transparent ink forming the transparent resin layer is reversely transferred to the surface of the rubber coating layer, so the transparent resin layer A defect such as a concave portion is likely to occur, or the transparent resin layer is easily broken, and there is a problem that it is difficult to uniformly planarize the entire transparent resin layer.

Further, when the metal after the release treatment is applied to the outer peripheral surface disclosed in Japanese Patent Laid-Open Publication No. 08-075914 (1996) and Japanese Patent Application No. 08-234013 (1996), the metal roller or the like is excessively hard. Since the helmet method flexibly copes with the thickness unevenness of the transparent resin layer, it is still difficult to uniformly planarize the entire transparent resin layer. In addition, the release treatment of the circumferential surface of the metal roll or the like (10) is deteriorated, and the transparent ink forming the transparent resin layer is easily reversed. When printing on the outer peripheral surface, it is necessary to face the problem of replacement. Therefore, the inventors conducted the following research: a flattening sheet is wound on the outer limb of the upper Wei in a replaceable manner for flattening treatment. The flattening sheet abuts on the surface of the transparent resin layer. The abutting surface has excellent characteristics of preventing reverse transfer of the transparent ink forming the transparent layer, and the entire abutting surface has appropriate softness suitable for flattening the above-mentioned layer of the resin layer. However, when used and previously The rubber coating has the same composition, and the rhyme abutment surface _ for the turning (four) thirsty and the whole abutment _ 卿 杂 杂 杂 杂 骑 骑 微 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' In the circumferential field, if the material (4) differs from _, then the film _ is raised upwards, so that defects such as concave portions corresponding to the above-mentioned protrusions are easily generated on the flat slabs. 9 200846196 ^/Z6/pu [Invention] The object (4) of the present invention is to provide a flat ink to uniformly planarize the entire transparent resin layer, and to transparently transfer the transparent ink layer of the micro-tanned sheet to make it transparent. : month b tree month: 20% of the above-mentioned defects caused by the incorporation of foreign matter, and, on the day of the birth, the consumption of the filter wire is to provide a connection to the above-mentioned heart ^ 2 The release layer, the base 2 and the layup layer constituting the abutting surface, the upper surface layer of the upper mold layer is equal to 30 mils, and the abutting surface line tube has a roughness Ra of 20 nm or less. The arithmetic mean roughness of the roughness curve of the above-mentioned beauty is the surface of the elastic layer (23. 〇 is 〇5, and the thickness is 0.1 mm to 5 mm. ^ MPa ' according to the present According to the invention, the surface tension (23C) of the abutting surface of the release layer in each layer which is sequentially laminated is set to 3 μm/m or less, thereby preventing the transparent ink forming the transparent resin layer from being reversely transferred onto the abutting surface. Further, (the arithmetic mean roughness Ra of the roughness curve of the surface of the substrate layer adjacent to the release layer side is set to be 50 nm or less, and the arithmetic of the abutment-roughness curve of the release layer formed on the above surface is performed. The average roughness (5) is set to be equal to or less than 20 rnn' so that the smoothness of the surface of the above-mentioned release layer can be improved, and the smoothness of the surface of the planarized transparent resin layer can be improved. Moreover, according to the present invention, the elastic modulus of the elastic layer (23) 〇 set to 0.5 MPa~20 MPa, the thickness of the elastic layer is set to 〇1 face to 5 dirty, 10 200846196 牟 料 正 ' '' flattening sheet has a suitable suitable for flattening the transparent resin layer. The above flattened sheet is wound into a mosquito In the outer peripheral surface, if a foreign matter or the like is interposed between the right and the right side, the elastic layer can absorb the deformation due to the above, and it is preferable to suppress the flattening sheet of the present invention from being formed on the contact surface. The abutment of the sheet : =:: = in the state of the light outer peripheral surface, the transparent resin is used / the mating surface is used to cause the transparent resin layer to roll over the transparent resin layer for the transparent resin layer The surface of the surface is flattened, whereby the surface of the resin layer can be flattened while the roll is continuously rolled on the transparent resin layer, so that the problem of defects caused by the remaining bubbles is hard to occur. Preferably, the thickness is less than or equal to 3 〇 _. When the release layer = ^ ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' 提高 提高 提高 提高 提高 提高 提高 提高 提高 整个 整个 整个 整个 整个 。 整个 整个 整个 整个 。 Further, the layer is preferably such that the tensile modulus (23 < t ) is greater than or equal to just running, and the thickness is 50 μm to 500 μχη. When the tensile modulus (pit) of the substrate layer is greater than or equal to i. , can be raised = the tensile strength of the flattened sheet in the plane direction, in the above flattening sheet to ^ When the tension winding is fixed to the outer peripheral surface of the newspaper, it is possible to prevent the denucleation layer from being peeled off or cracked due to the extension of the surface direction. Further, when the thickness of the layer is 50 μηι to · μηι, the flattening can be achieved. The sheet has an appropriate fit of 11% on the outer peripheral surface of the newspaper, and an appropriate toughness of the non-bending 11 200846196. The color filter manufacturing method of the present invention includes the following steps: forming at least a portion of the surface of the substrate has been a colored transparent resin layer; and an abutting surface of the flattening sheet of the present month is wound around the outer peripheral surface of the roller as an outer side, and the abutting surface is brought into contact with the lower surface of the surface of the transparent resin layer. The above roller rolls on the transparent resin layer to planarize the surface of the transparent resin layer. In the present invention, in order to planarize the transparent resin layer, the flattening of the present invention is wound, so that the transparent resin layer can be uniformly flattened, so that the entire crucible can be manufactured. Coloring of the surface of the transparent resin layer without the above-mentioned defect = [Embodiment] The flat-grained sheet of the 槿 、 、 ^ 具备 具备 具备 具备 具备 具备 具备 具备 具备 具备 具备 具备 具备 具备 具备 具备 具备 具备 具备Layer, === face: abutting "] = layer, the abutting tree = film mN/m of the upper abutting surface. If the surface of the abutting surface (widely less than or equal to 30 transparent resin layer ^ mN/m ' When the job layer is self-contained, the formation of the transparent resin layer occurs in the transparent tree layer, and the problem occurs when the resin layer is damaged. Defect, or to make the transparent tree 12 200846196 Jl Further, in order to further ensure that the transparent resin layer prevents the occurrence of reverse transfer on the abutting surface, it is preferable that the surface tension (23c) of the abutting surface is 5 mN. /m~25 mN/m, particularly preferably 10 mN/m~20 rnN^n. ^ 'The layer is preferably coated with the following By forming by the method, if the mold release is formed by the surface tension (23. 〇) of the abutting surface in the above range, the adhesion of the release layer on the substrate layer can be ensured. h suppresses the release of the release layer prematurely due to peeling, and can also extend the life of the flattening sheet. The surface tension M (23t) of the release layer is expanded by the Fowkes theory, 〇Wms and In the measurement environment of the degree of 23 C, the surface tension 丫l, the dispersion component of the surface tension γι/, on the release layer, the surface to be measured, Χ and 11%·minutes YlP are droplets of known solvents, using Kyowa

The Fully aut〇mated contact gle meter manufactured by Science Co” Ltd. is used to measure the contact angle of the above solvent Θ (〇), 卜; 10, this \ d I) the above surface tension The dispersion component γ/ and the W component Y1P are dispersed, and based on these values, the dispersion component V and the polar component of the surface tension Ys of the surface of the release layer are obtained by the following formula:

Yl ( 1 + Cose )=2( Ys V ) 1/2 + 2 ( YspYlp ) 1/2 (1), further - based on the above-mentioned dispersion component V and polar component ☆, the release layer is obtained by the formula (2) Surface tension γδ (23. (:):

Ts = Ysd + ysp (2) The layer can be formed by using various materials capable of forming a film layer having a surface tension within the above range, from increasing the lifetime of the above-mentioned layer to the lifetime of the flat film of 200846196 x In view of the above, it is particularly preferable to form a release layer by using a resin having a small surface energy such as a silicone resin or a fluororesin. The release layer can be formed by a so-called coating method in which a coating liquid containing the above resin or a precursor thereof is applied onto one surface of a substrate layer, dried, or contained in a precursor. In the case of the substance, the precursor is reacted to form a resin.

In addition, for the above-mentioned abutting surface of the delamination layer, the Japanese Industrial Standard JIS B0601: 2001 "Geometry Specifications (Gps) _ Surface Properties: Contour Curve Method, Terms, Definitions, and Surface Property Parameters" (with ISO) 4287 : 1997 - The average arithmetic roughness Ra of the roughness curve must be less than or equal to 2 〇 nm. If the arithmetic mean roughness exceeds 20 nm, the smoothness of the surface of the release layer is lowered. Therefore, the = layer (four) shape is transferred to the surface of the transparent resin layer which is flattened by the upper thread, Therefore, the thickness of the transparent resin layer may be uneven. Therefore, when the color filter group having the above transparent resin layer is incorporated into, for example, an LCD or the like, the thickness of the transparent resin layer is uneven, and the corresponding The ground produces uneven concentration, which causes a problem of reduced enamel. , , , and 考虑 考虑 顺 顺 顺 ( ( ( ( ( ( ( ( ( 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四In addition, considering that nm' is preferably less than or equal to the roughness Ra, the smaller the two"/', the arithmetic mean is coarse. The lower limit of the average degree of leg surgery can be included, considering the following cases: The formed laminate layer 14 200846196 The average roughness Ra is affected by the bottom layer 'that is, the surface modification formed on the substrate layer is processed into a curve of the roughness curve = 3:: the average thickness is preferably greater than or equal to, == is good for 4, Since the surface state of the release layer affects the surface state of the release layer, that is, the surface of the release layer is formed, the resulting release layer yarn _ arithmetic mean roughness & adjustment is: ^^ 'It is important to make the surface of the above-mentioned base material layer as much as possible. When the release layer is formed by a coating method, the following treatment is also important. For example, by bar coating method or method, etc. (4) Surface:: a coating method of the second secluded, and, if necessary, a surface of the surface of the nucleation layer after the formation is subjected to a polishing modification, and the towel is used by the above-mentioned bar coating method, and the outer peripheral surface thereof is polished and modified. Coating bar. The nasal average roughness Ra of the surface of the release layer is Measured by the method, ie, using c〇l〇r

3D Laser Scanning Microscope (VK_97 (9) manufactured by ^^3D ^yenee C'mion] performs Noncontact 3D measurement, and based on the result of the measurement, is represented by a value calculated based on the above JIS standard. The thickness of the release layer is preferably 3 Å or less, and particularly preferably 15 μm or less. When the thickness is outside the above range, the entire flat sheet becomes soft, so that the transparent resin layer cannot be formed during the planarization treatment. Since the uniform pressure is applied, the transparent resin layer cannot be uniformly planarized. Further, 15 200846196 may cause unevenness in the smoothness of the surface of the release layer due to the release layer during the flattening treatment. , the thickness of the transparent resin layer is reduced, and the thickness of the transparent resin layer is not transferred to the surface of the release layer according to the transparent ink which may be guided by H. The thickness of the release layer is higher than that of the layer of the moon.大于μιη is greater than or equal to #μιη.#因^2 Temple Array, especially good for energy, to frustrate 薙 薙 / 曰 、;;, the right thickness is less than the above range, then the monthly 1 method can be relied on by setting the release transparent ink reversal The effect is a release layer between the portion and the non-peeled portion of the level difference generated from the heart ^ r using the following C0L0R Qin Laser Scanning level puncturing t). Contact two-dimensional measurement (the substrate layer is the film release layer supporting the upper and lower sides of the release layer and the elastic layer, the tensile strength of the high (four) flattening sheet in the plane direction and the above-mentioned flattening sheet is wound around the roller The appropriate blending property on the outer peripheral surface and the appropriate movability for the hard-to-be-slip. The tensile modulus (2) of the base material layer is preferably equal to or greater than MPa, particularly preferably equal to or less than the fine paper. When the scratch is less than the above range, the sheet is flat and the tensile strength of the sheet in the surface direction is insufficient. Therefore, when the flat sheet is wound and fixed to the outer peripheral surface of the roll with a constant tension, the release layer may not be formed. In the direction of the surface, the surface is peeled off or cracked. Further, the tensile modulus (23. The upper limit of the crucible is not particularly limited, but the suitability (10) of the outer peripheral surface of the roll is maintained for 16 200846196). Preferably, the substrate phase (four)·rate is expressed by the value of the temperature pit_quantity_b/handle: "Vulcanized rubber and thermoplastic ^Japan H to 1SQ 37: 1994 _•^彳%仏 is still using polyethylene terephthalate ===Aromatic Polyimine Resin ▽, 叮/士7才, 涵胰 hngmeenng plastic mm ) 〇 is a substrate layer. Chain, recorded, unrecorded steel, iron, copper and other metals 11 or thin plate for $ substrate layer 2 thickness is preferably 5G μπι 5 () () _, particularly good for 75 _ no layer two right thickness f is less than the above range 'can not give the flattening sheet If the thickness is outside the above range, it is impossible to properly fit the flat outer surface on the light outer surface. Therefore, the above-mentioned flattening sheet may be caused by the above-mentioned flattening sheet. The operability of the fixed tension β + 疋 on the outer peripheral surface of Xing Kun is reduced. The thickness of the substrate layer (micrometer), Mitut〇y〇 Corporation rc〇〇iantwMi— ^ for the surface of the substrate layer adjacent to the release layer side In terms of the Japanese Industrial Regulations 17 200846196 JIS BO601: 2001 "Geometry Specifications (Gps) of the product side traits: wheel _ wire material one (four), (four) sigh surface, (consistent with ^ 4287 · 1997) _ The arithmetic mean reduction Ra of the degree curve must be less than or equal to 50 nm. If the arithmetic mean thick chain degree exceeds 50 nm, then The arithmetic mean roughness 1^ formed on the surface of the surface by the coating method will exceed the range of the gong g and a range, so that an LCD or the like equal to ^ will be produced, considering that the surface of the release layer is counted as Within the appropriate range described above, the arithmetic mean roughness Ra of the Ra surface of the basis is preferably close to the surface of the release layer equal to 〖() nm. Again, considering t5nm, it is preferably a small average _ degree Therefore, the calculated average roughness of the surface of the base village is as small as possible, and the arithmetic of the surface = the surface can include Onm. The lower limit of the thickness R is very small. Considering that it is difficult to pre-form the release layer on the substrate layer in the production of the substrate layer, the arithmetic mean roughness of the actual curve is / Roughness is considered in the case of the charm of the county called (four) smooth surface 'when equal to 3 nm, particularly preferably greater than or equal to $ Ra Ra Ra is preferably the arithmetic mean rough sound η ΐ ^ of the face of the large release layer. In order to form the base material layer, for example, when the base material layer has a metal in the above range, the surface of the base material layer may be repaired, and the layer may be a smooth surface such as a so-called engineering plastic film. Further, the strips in the respective steps of forming the film by the substrate j are adjusted to be known for forming or stretching, or the surface of the film to be produced is processed into a smooth surface by grinding 18 200846196. The arithmetic mean roughness Ra of the surface of the base material layer forming the release layer was measured by the following method, that is, 'using the COL0R 3I as described above) Laser Seanning

Microscope [VK-9700 manufactured by Keyence Corporation] performs non-contact three-dimensional measurement (Noncontact 3Dmeasurement), and based on the result of the measurement, is represented by a value calculated based on the above JIS standard. When the elastic layer is used as a buffer layer, it is possible to apply a uniform (four) to the transparent resin layer when performing the planarization treatment, and when the flattening sheet is wound and fixed on the outer peripheral surface of the roller, if foreign matter is sandwiched between the two. In this case, the elastic layer is deformed by the shape of the foreign matter, and the abutting surface of the flattening sheet of the foreign matter is suppressed from being formed as a protrusion, thereby preventing defects such as a concave portion corresponding to the protrusion from being generated: The elastic modulus (23. 〇 insufficient. 5 purchase, or thickness canalization = = the entire flattened sheet will become too soft, so that the flatness (pit) exceeds 20 MPa - on the other hand 'if elastic flattening When the sheet is wound and fixed to the outer peripheral surface of the roller, the thickness of the outer surface of the roller is less than or less than ugly, the balance of the flattened transparent resin layer is given to the above-mentioned projection 19 200846196 flat sheets, which is equal to When the foreign matter is sufficiently absorbed in the above-mentioned foreign matter, the contact surface of the chemical sheet is considered to be defect-free and uniform in order to suppress the shape of the foreign matter in a flat shape. 15M==^=sex rate (10)) is better than ^ ^ mm~〇 of 35 mm square, Γί mu said characteristics of various materials are formed, and particularly preferably elastic rubber or soft resin is formed of two == 3. The elastic layer οαπ/ιγ^ + is measured according to the Japanese Industrial Standard JIS K625; l. 37. Silken New Town (4) Fine _" (correction of 37. 1994). Also, the elastic sound - the micrometer described above [for example, the date* is also represented by the value of the waterproof type canister ^_ntrrro=^=. The flattening sheet of the present invention may be formed of only the above-mentioned three layers of the release layer, the base material layer and the elastic layer, or may be formed in the above-mentioned respective layers H such as an adhesive layer. Further, the release layer, the base layer, and the respective layers of the elastic layer may be formed as a laminated structure composed of two or more layers satisfying the above respective characteristics. The flattening sheet composed of only the above three layers is produced, for example, by coating a coating liquid as a release layer forming material on one surface of the base material layer, and then, as described above, Forming a release layer by drying or reacting, and coating a material for forming an elastic layer on the opposite surface of the base material layer, 20 200846196c, a liquid or paste-like paste prepared by dissolving a rubber or a soft resin in a solvent. The agent, which makes it dry, then hardens it as needed to form an elastic layer. Fig. 2A is a cross-sectional view showing an example of a procedure for producing a color filter of the present invention by using the flattening sheet of the present invention described above. In the manufacturing method of this example, first, the printed strip patterns 2 to 4 formed by the transparent inks colored in the respective colors corresponding to the respective pixels of red (8), ί t, ^, 2 (8) are used. The pixel ff is arranged on the substrate 1 such as a glass substrate to form a transparent tree layer 5. The two persons 'maiden picture 2' wind the flattening sheet 6 of the present invention around the light 7 = the abutting surface of the flattening sheet 6 of the roller is brought into contact with the printed m layer 5 after printing In this state, as shown in the head and white arrows in Fig. 2, the upper Wei 7 is flattened on the surface of the transparent tree on the transparent tree, thereby producing a color 9 4^1 step. In order to print the strip pattern 2 on the substrate 1, it is possible to use any of various previously known printing methods such as gravure printing, lithographic printing, and stencil printing. A gravure printing method is employed. In the gravure printing method, a gravure printing machine equipped with a gravure and a newspaper may be used, in which the outer peripheral surface of the concave portion corresponding to the concave shape is wound up, and the concave plate is The inner filling of the recess has been colored into the above-mentioned respective color inks, and then the surface of the rubber coating layer is made 21 to the surface of the intaglio plate.

200846196 In the state of contact, the upper ink in the upper phase plate is made to have the surface of the rubber bag county 3 = concave, the surface of the rubber coating layer and the roll on the substrate roll on the substrate, thereby The pattern is transferred onto the surface of the substrate so that the pattern of the pattern and the pattern can be printed onto the surface of the substrate. (4) Corresponding strips The gravure printing method described above has the following advantages: (4) printing the reproducibility of the strip == sub-substrate on the surface of the substrate, the strip pattern being formed on the intaglio table by, for example, photolithography ^Up, which corresponds to a high-precision pattern and is constructed by a transparent ink. For the use of the intaglio plate printing and the flattening of the resin layer after the flattening of the flat surface printing, except for the lightness of the rubber coating layer wound on the gravure printing machine, It is also possible to carry out the step of winding the flattening sheet's roll from the former to the printing step and the latter to flattening. Further, the flattening step may be carried out by winding the flattening sheet of the present invention on the roll after the end of the printing step in place of the rubber coating layer. Example 1 A PET film [^60 manufactured by TORAY INDUSTRIES INC.] was prepared as a substrate layer, and the roughness curve of the roughness curves of the two faces on the PET film was 11 · 5 nm, and the stretching was performed. The modulus of elasticity (23 ° C) is 210 MPa' and the thickness is 1 〇〇 μπι. Next, a rectangular shape having a length of 300 mmx and a width of 400 mm is cut from the above pET film, and the repair tape is adhered to the edges of the two sides of the rectangular side of the one side and the long side of the side (men<jing 22 200846196f The shape of the H"4 face up and the PET film is fixed on the flat plate=sorrow, using the above-mentioned repair tape as the thickness reference, using a straight 仫2mm_stainless steel, and the outer circumference=, by the bar coating method Oxygen tree (4) (4) solution coated on the above surface [Shin_Etsu Chemieai C (^ = main volume trademark _ he T, surface tension of individual hardened material (2). g force: after 1Q in a clean oven (deanGVen) (when rC is used, it is hardened = it is opened (the money layer is layered. The surface tension of the surface of the above-mentioned release layer (2 Γ is the "the arithmetic mean of the curve of the 趟 趟 curve is 8.7·, film loading The opposite side of the formation side of the ϊίϊΓ layer is upward and the above ρετ is thin: the solid=degree is 50°_(_,== the reference, the position of the job is set _ the above-mentioned stainless steel rod is made as a thickness t? And the outer peripheral surface and the excavator rod 'by strip coating method" form the release film in the above; The inverse elastic modulus (23D m 55〇_9, when the hardened material is added alone is 5-8) is + after the clean oven: :: knife! in order to make the urethane resin hard:) The flattening sheet of the column 1 was produced. The above-mentioned elastics 2, 3) were 5.3 MPa 'the thickness was 〇 65 faces. Example 2 23 200846196 The registrar rank SEPA-COAT manufactured by Shin-Etsu Chemical Co., Ltd. The company's KS-830 [surface hardness (23 ° C) of a single hardened product is 38 mN/m] is formulated at a weight ratio of 40:60, and a mixture of the above blend is used as a release layer. In the same manner as in Example 1, the flattening sheet of Example 2 was formed in the same manner as in Example 1. The surface tension of the surface of the above-mentioned release layer (23°) was formed. C) is 28 mN/m, and the arithmetic mean roughness Ra of the roughness curve is 8.7 nm'. The thickness is 1. Lu Comparative Example 1 The registered trademark SEPA-COAT manufactured by Shin-Etsu Chemical Co., Ltd. is manufactured with the company. KS_830 is formulated in a ratio of weight ratio of 20:80, and a mixture obtained by the above is used as a release layer forming material. A flattening sheet of Comparative Example was produced in the same manner as in Example 1 except that the coating liquid of the epoxy resin coating liquid was used. The surface tension of the surface of the release layer (23. 〇 was 32 mN/m. The arithmetic mean roughness Ra of the roughness curve was 8·7 ηπι, and the thickness was 1 μπι ° • Comparative Example 2 KS-830 manufactured by Shin-Etsu Chemical Co., Ltd. was used alone - stone of the mold release layer forming material A flattening sheet of Comparative Example 2 was produced in the same manner as in Example 1 except that the coating liquid of the epoxy resin was used. The surface tension of the surface of the above-mentioned pulling (23. 〇 is 38 mN/m, the arithmetic mean roughness Ra of the roughness curve is I0.5 nm, and the thickness is i.) Example 3 Shm-Etsu Chemical Co., Ltd. Manufactured registered trademark 24 200846196, " t 屋 / χΧ SEPA-COAT and the company's KS_837 [surface tension of the individual cured product (23 Ό) is 16 mN / m] in a weight ratio of 80: 2 加以, The flattening sheet of Example 3 was produced in the same manner as in Example 使用 except that the mixture prepared by the above-described blending was used as the coating liquid for the release layer forming material. The surface of the surface of the mold layer = (23 ° C) is 16 mN / m 'The arithmetic mean of the roughness curve is 18 nm and the thickness is 1 μπι.

Comparative Example 3 The substrate layer was subjected to a PET film having an arithmetic mean rough degree Ra of 66.8 nm and a tensile modulus (23χ:) of 23 〇μρ & 100, using a rough curve of the two faces thereof [Teijin DuP_Fims (4) A flat sheet of New Zealand (4) 3 was produced in the same manner as in Example 除 except for the registered trademark Melinex S]. The arithmetic mean fineness of the roughness curve of the surface of the release layer formed on the above m film, and the column nm ° _ Example 4 The arithmetic mean roughness R of the rough radiance curve of the base layer using the two faces is 48 rnn, a PET film having a tensile modulus (23t) of 23 〇Mpa and a thickness _ [si〇 manufactured by Toray Industries, Inc.], except that the same as in Example 1 was produced. Flattening = The arithmetic mean roughness Ra of the table-roughness curve of the release layer on the above PET_ was 8.7 nm. Comparative Example 4 The arithmetic mean roughness of the thick chain curve of the two faces of the substrate layer was used 25 200846196

Ra is 52 nm, tensile modulus (23 art) is 23 〇 Mpa, thickness is ι〇〇

A PET film of Mm [§15 manufactured by Toray Industries Jnc.], except for this, was produced in the same manner as in Example 1 to produce a flattening sheet of Comparative Example 4. The rough roughness curve of the surface of the release layer formed on the above PET film was calculated to have an average roughness Ra of 8.7 nm. Example 5 KU_7〇〇2 manufactured by Hitachi Chemical Co., Ltd. [elasticity (23C) of the cured product alone was 0.07% by weight!] and the company manufactured by 公司·7〇08 [separate hardening alone] The elastic modulus of the material (2; rc) is 〇95Mpa], and the ratio of the weight ratio of 50 to 50 is used, and the mixture prepared by the above is used as the elastic layer forming material for the metal phthalic acid resin for washing and casting. Further, the flattening sheet of Example 5 was produced in the same manner as in Example 1. The elastic modulus of the above elastic layer (23. 〇 is 0.55 MPa. Comparative Example 5 KU-7002 manufactured by Hitachi Chemical Co., Ltd. and KU-7008 manufactured by the company were blended at a weight ratio of 40:60, and The flattening of Comparative Example 5 was produced in the same manner as in Example 除 except that the mixed liquid prepared by the above-described composition was used as the urethane resin for casting of the elastic layer forming material. The elastic modulus (23 〇 c) of the above elastic layer was 〇·45 MPa 〇Comparative Example 6 KU-7002 manufactured by Hitachi Chemical Co., Ltd. alone was used as an amine phthalate resin for casting of an elastic layer forming material. Except for this, a flattening sheet of Comparative Example 6 was produced in the same manner as in Example 1. The elastic modulus of the elastic layer of the above-mentioned 26 200846196 (23. 〇 was 0.07 MPa. Example 0 will Hitachi Chemical Co" Ltd Manufactured KU-5550-9 and U-_A/B manufactured by the company [elasticity of individual hardened materials (2). (2) is 32 Μρ&]. It is blended in a ratio of 55:45 by weight, and the above blending is used. The mixture is used as a material for casting an elastic layer A flattening sheet of Example 6 was produced in the same manner as in Example 1 except that the urethane resin was used. The elastic layer (23 ° C) of the elastic layer was 18 MPa. * Comparative Example 7 Hitachi KU-5550-9 manufactured by Chemical Co., Ltd. is blended with U-801A/B manufactured by the company at a weight ratio of 45:55, and a mixture prepared as described above is used as a material for forming an elastic layer forming material. A flattening sheet of Comparative Example 7 was produced in the same manner as in Example 。 except that a urethane resin was used. The elastic layer had an elastic modulus of 22 MPa. Comparative Example 8 Using a chopping resin [ SCR-1011A/B manufactured by Shin-Etsu Chemical Co., Ltd., the elastic modulus (23 ° C) of the cured product alone was 140 MPa] to form an elastic layer, and otherwise, the same as in Example 丨In the manner of producing the flattening sheet of Comparative Example 8, the elastic layer had an elastic modulus (23 〇) of 1400 MPa. Example 7, Example 8, and Comparative Example 9 to Comparative Example 11 The thickness of the elastic layer was set to 〇· 11 mm (Example 7), 4.8 mm (Example 8), 0.08 mm (Comparative Example 9), 5.2 mm (Comparative Example 1) In the same manner as in Example 1, the flattening comparative example 12 of Example 7, Example 8, and Comparative Example 9 to Comparative Example n was produced in the same manner as in Example 1 except that 6.5 27 200846196 mm (Comparative Example 11) was used. A flattening sheet of Comparative Example 12 was produced in the same manner as in Example 之外 except that an elastic layer was formed. Evaluation test

On the surface of a glass substrate of 300 mm x 400 mm wide, using a flat gravure printing machine [NAKAN CORPORA Ding]; manufactured by QN], using gravure printing, and using CF ink for gravure printing A strip pattern of RGB three colors of a line width of 1 line is sequentially arranged as shown in FIG. 1 at a pitch of 100 μm to form a transparent printed layer. The intaglio plate is made of a glass intaglio, and the recess corresponding to the shape of the strip pattern has an opening width of 110 μm and a depth of 7 μm, and the rubber coating layer uses SRI.

A total thickness of 〇.9 mm manufactured by Research&Development Ltd. is a silicone blanket for fine printing. Further, as the CF ink for gravure printing, an ink prepared by mixing adipic acid with phthalic acid in an amount of 180 was used. In the case of a polymerization reaction, a polyester resin is synthesized, and melamine [registered trademark Sumimal manufactured by Sumitomo Chemical Co., Ltd.] is added to the resin, and it is heated at 200 ° C, and in this case, The ratio shown in Table 1 was prepared by disposing a binder resin having any weight average molecular weight Mw in the range of 2,000 to 20,000, any of the following pigments and dispersants [AJINOMOTO COJNC· 28 200846196f Registered trademark AJISPER PB821], and butyl carbitol acetate as a solvent, and mixed using three rolls. Soil (pigment) Red · CI Pigment Red 245 (diketone η ratio u each 幷吼 ^ each pigment) Green: CJ·Pigment Green 36 (bromide copper phthalocyanine pigment) Color: CI·Pigment Blue 15 : 6 (Copper Phthalocyanine pigments) Table 1 Formulation ratio (parts by weight)

Adhesive Resin Pigment Dispersant Solvent Red 邑 55 Next, the rubber coating layer was removed from the roll of the printing machine, and the flattening sheet produced in the examples and the comparative examples was wound and fixed thereon. Next, in a state where the contact surface of the flattening sheet is brought into contact with the surface of the transparent resin layer, the upper Wei is moved on the transparent resin layer, thereby flattening the surface, and thereafter, The film was heated at 23 rc for 3 minutes to harden the transparent resin layer to produce a color filter. The abutting surface of the flattened sheet after flattening was observed to confirm whether or not the reverse transfer of the ink occurred. 'The surface of the transparent resin layer after hardening was observed by a microscope, and the unevenness of the surface was not changed compared with before the flattening, and the flatness was bad. Moreover, for the flattened flattening sheet, the step was used. The surface roughness and the fine shape measuring device [Alpha-Step 500 manufactured by KLA_Tene Corporation) were used to measure the arithmetic mean roughness Ra of the roughness curve of the above surface, and the above arithmetic mean surface degree was evaluated by the above-mentioned arithmetic mean degree ^ 29 200846196 exceeding 20 nm. When the thickness of the transparent resin layer was uneven, the arithmetic mean roughness Ra was 20 nm or less, and it was evaluated as unevenness and smoothness. Surface of the transparent resin layer, to confirm whether there is a defect like a concave portion on the transparent resin layer, which results are shown in Table 2 ~ Table 7. TABLE 2

Example 1 Example 2 Comparative Example 1 Comparative Example 2 Surface roughness Ra (nm) 8J 8J ~ 8J"""" 10^5~ Surface tension of the release layer (mN/m) 16 28 32 38 Thickness ( Μιη) 1 1 1 1 Surface roughness Ra (ran) of the substrate 11.5 11.5 11.5 11.5 Thickness (μπι) 100 100 100 100 Elastic layer elastic modulus (Mpa) 5.3 5.3 5.3 5.3 Thickness (mm) 0.65 0.65 0.65 0.65 Reverse transfer without Nothing to evaluate Ra (nm) 3.5 3.5 - - Ten/monthly evaluation is good and good - - Defects are none - No -

30 200846196 Table 3

Example 3 Example 3 Comparative Example 4 Comparative Example 4 Surface roughness Ra (nm) 18 39 8.7 8.7 Release layer surface tension (mN/m) 16 16 16 16 Thickness (μπι) 1 1 1 1 Substrate surface roughness Ra (nm) 11,5 66.8 48 52 Thickness (μπι) 100 100 100 100 Elastic layer elastic modulus (Mpa) 5,3 5.3 5.3 5.3 Thickness (mm) 0.65 0.65 0.65 0.65 Anti-transfer without benefit "ν" No evaluation, , Jin Hao Ra (nm) 3.5 36 18 23 丨 / month ΐ玍 evaluation good poor good bad defects no no no no table 4

Example 5 Comparative Example 5 Comparative Example 6 Surface roughness Ra (nm) 8.7 8.7 8.7 Surface tension of the release layer (mN/m) 16 16 16 Thickness (μπι) 1 1 1 Surface roughness of the substrate Ra (nm) 11.5 11.5 11.5 Thickness (μπι) 100 100 100 Elastic layer elastic modulus (Mpa) 0.55 0.45 0.07 Thickness (mm) 0.65 0.65 0.65 Anti-transfer without or without evaluation Ra (leg) 3.5 3.5 - Good evaluation ※l 嵚2 Defective None None ※丄: Some cannot be flattened. *2 : Cannot be flattened. 31 200846196 Table 5 Example 6 Comparative Example 7 Comparative Example 8 Surface roughness Ra (nm) 8.7 8.7 8.7 Release layer surface tension (mN/m) 16 16 16 Thickness (μπι) 1 1 1 Substrate surface roughness Ra ( Nm ) 11.5 11.5 11.5 Thickness (μιη) 100 100 100 Elastic layer elastic modulus (Mpa) 18 22 1400 Thickness (mm) 0.65 0.65 0.65 _Reverse transfer _ No no evaluation ^ ^ ,, Ra (nm) 3.5 3.5 3.5 , Ding /, ping, shi, / dry / poor τ 玍 good good good evaluation defect no

Table 6 Comparative Example 12 Comparative Example 9 Example 7 Surface roughness Ra (nm) of the release layer 8.7 8.7 8.7 Surface tension (mN/m) 16 16 16 Thickness (μπι) 1 1 1 Surface roughness Ra (nm) of the substrate 11.5 11.5 11.5 Thickness (μπι) 100 100 100 Elastic layer elastic modulus (Mpa) - 5.3 53 Thickness (mm) - 0.08 0.11 Evaluation of reverse transfer without or without smoothness Ra (nm) 3.5 3.5 3.5 Good evaluation Good good or not 32 20084619& Table 7 = - Real culvert 8 Comparative Example 10 Comparative Example 粗 Surface roughness of the release layer Ra (nm) 8.7 — 8·7 8.7 Surface tension (mN/m) 16 16 16 Thickness (μιη) 1 1 1 Substrate - Surface roughness Ra (nm) 11·5 11.5 11.5 Thickness (μιη) 100 100 100 Elastic layer - Elasticity (Mpa) 5.3 5.3 5.3 Thickness (mm) 4.8 5.2 6.5 Reverse transfer without or without evaluation Smooth Ra (nm) 3.5 3.5 - ff /g Good evaluation 嵚3 Defects --- Nothing Nothing ※ Do not flatten. As is apparent from the above tables, when the surface tension (23 C ) of the surface of the release layer exceeds 30 mN/m, the flattening sheet 比较' of Comparative Example 2 produces reverse transfer of the ink. Further, since a layer having an arithmetic mean roughness Ra of the surface exceeding 50 nm is used as the substrate layer, when the arithmetic average roughness Ra of the surface using the delamination exceeds the comparative example 3 of the flattening sheet of 2 ', the grease is permeable. The arithmetic mean thick chain degree of the surface of the layer is more than 20 nm in total, and it is understood that the thickness of the above transparent resin layer is uniformly generated, even if the arithmetic mean roughness of the surface after peeling is at nm, the arithmetic mean thickness of the surface is used. When the degree of sew is a flattening sheet of the scenting example 4 of the substrate layer exceeding the % coffee layer, the arithmetic mean roughness of the slab = surface still exceeds 2 〇 nm, and unevenness is caused by the thickness of the bis resin layer. In the above, it is known that the elastic modulus of the elastic layer (the _5 of MPa, the flat_ of _6, and the thickness of 33 of the 46,466,196 degree of the thickness of the film of the comparative example 10 and the flattening piece of the comparative example) cannot be used. The transparent resin layer was planarized. It was also found that the flattening sheet of Comparative Example 7 and Comparative Example 8 in which the elastic modulus (23. Å) of the elastic layer exceeded 20 MPa, and the flattening of Comparative Example 12 in which the elastic layer was not formed was used. In the case of the flattening sheet of Comparative Example 9 in which the thickness of the sheet and the elastic layer is less than 0·1 mn, it is not possible to prevent defects such as concave portions from being formed on the transparent wax layer. In contrast, it has been confirmed that the first to eighth embodiments are used. When the flattening sheet is formed, the entire transparent resin can be uniformly planarized, and the transparent ink which forms the transparent resin layer can be prevented from being reversely transferred, thereby preventing the concave portion from being formed on the transparent resin layer. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing an example of a method of manufacturing a color filter of the present invention using the flattening sheet of the present invention. y Fig. 2 is a schematic cross-sectional view showing an example of a subsequent step of Fig. i. Component symbol No. Description] "1: Substrate 2 to 4: Strip pattern 5: Transparent resin layer 6: Flattening sheet 7: Roller 34

Claims (1)

200846196 X. Patent Application Range: 1. A flattening sheet for abutting a surface of a transparent resin layer on which at least a part of a color filter is colored to planarize a surface of the transparent resin layer, The flattening sheet includes a release layer, a base material layer and an elastic layer constituting the abutting surface from the abutting surface of the transparent tree surface of the transparent tree toward the back surface; the abutting surface of the releasing layer The surface tension is less than or equal to 30 mN/m at 23 degrees Celsius, and the roughness flatness Ra of the roughness curve of the abutting surface of the release layer is less than or equal to 20 nm; the substrate layer is adjacent to the release layer The arithmetic mean average chain length Ra of the roughness curve of the surface is less than or equal to 50 nm; and the elastic modulus of the elastic layer is 〇.5 MPa~2〇MPa at 23 ° C, and the thickness thereof is 〇. Mm. 2. The flattening sheet according to the first aspect of the invention, wherein the abutting surface of the flattening sheet is wound around the outer peripheral surface of the roller as the outer surface of the roller, and the abutting surface is brought into contact with The surface of the transparent resin layer is such that the roller rolls on the above-mentioned sinuous resin layer to achieve planarization of the surface of the above transparent surface layer. The flattening sheet of the invention, wherein the thickness of the stripping layer is less than or equal to 30 μπι, such as the flattening sheet of claim 1, wherein The tensile modulus (23 ° C) of the substrate layer is greatly changed to the excitation Mpa, and the thickness thereof is 50 μm to 500 μπι. ' 5. A method for producing a color filter, which is characterized by the following 35 200846196. Forming at least a portion of the transparent tree outside the base layer on the surface of the substrate; and forming abutting surface of the flattening sheet according to Item 1 as the transparent material, the surface of the roller, and The surface of the transparent resin layer is flattened by the above-mentioned roller on the transparent resin layer in a state in which the bonding surface abuts against the surface of the tree layer. _ 36