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Manufacturing method of flexographic printing plate and manufacturing method of liquid crystal display element

A flexographic printing plate and manufacturing method technology, applied in the directions of printing plate, printing, printing plate preparation, etc., can solve the problems of decreased thickness accuracy, difficulty in maintaining thickness accuracy, etc., and achieve excellent position accuracy, excellent thickness accuracy, and omission of work. Effect

Active Publication Date: 2018-11-06
NAKAN TECHNO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, with the increase in the size of flexographic printing plates due to the increase in size of liquid crystal display elements in recent years, it has been difficult to maintain the above-mentioned thickness accuracy.
Especially in large flexographic printing plates of G6 size (1560mm×2065mm) to G8 size (2300mm×2780mm), the thickness accuracy drops significantly

Method used

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  • Manufacturing method of flexographic printing plate and manufacturing method of liquid crystal display element
  • Manufacturing method of flexographic printing plate and manufacturing method of liquid crystal display element
  • Manufacturing method of flexographic printing plate and manufacturing method of liquid crystal display element

Examples

Experimental program
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Effect test

no. 1 approach ＞

[0050] In the first embodiment, the divided bodies 4 which are not patterned in advance are used.

[0051] refer to Figure 2A , Figure 2Betc., as the divided body 4 , for example, a laminate of the surface layer resin layer 8 and the reinforcement film 9 constituting the printing surface 7 described above, etc. can be mentioned. The divided body 4 having such a laminated structure can be produced similarly to a conventional small flexographic printing plate.

[0052] That is, a planar shaping surface (not shown) is prepared for making the printing surface 7 a predetermined surface state such as a rough surface, and the surface layer resin layer 8 is sandwiched between the shaping surface and the reinforcing film 9 . The photosensitive resin composition is irradiated with active light in a state where the reinforcing film 9 is kept in a parallel plate shape with a predetermined interval with respect to the shaping surface, so that the photosensitive resin composition underg...

no. 2 approach ＞

[0080] In the second embodiment of the present invention, the segmented body 4 in which a pattern has been formed in advance is used. Other steps are the same as those of the first embodiment.

[0081] For example, as in Image 6 As described in a part omitted in , on the surface of the surface resin layer 8 of the printing surface 7 of each divided body 4 which is a laminate of the surface resin layer 8 and the reinforcing film 9 constituting the printing surface 7, a layer corresponding to x×y is first formed. A specified pattern P corresponding to a printed pattern 11 ~P xy , and then the same as the first embodiment, via Figure 2A , Figure 2B , Figure 3A ~ Figure 3C each process to make the above Image 6 Pattern 1B is shown.

[0082] Afterwards, the reinforcing sheet 2 protruding to the outside of the ink transfer layer 6 is cut from the above-mentioned plate 1B to adjust the overall planar shape to a rectangle, and the ink transfer layer 6 near two sides parall...

no. 3 approach 〉

[0085] refer to Figure 7 , in the third embodiment of the present invention, the division body 4 in which the side surface 14 facing the adjacent division body (not shown) becomes an inclined surface is used.

[0086] The segmented body 4 itself is a laminate of the surface resin layer 8 and the reinforcement film 9 similar to the laminate used in the first embodiment, and its side surface 14 is formed so that the opposite surface 16 on the reinforcement film 9 side is opposite to the surface resin layer 8 side. One surface 12 is an inclined surface inclined at a predetermined inclination angle θ so as to protrude outward in the surface direction.

[0087] The split body 4 is formed by cutting a sheet-shaped precursor constituting the split body 4 obliquely with respect to the thickness direction of the precursor.

[0088] For example refer to Figure 8 Prepare the bases 24, 25 with the mounting surfaces 22, 23 on the same plane, and mount the separator 26 fixed on the moun...

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Abstract

[Problem] To provide a manufacturing method capable of manufacturing, with high yield, flexographic printing plates with excellent thickness precision even when large as well as excellent precision in the positioning of the pattern formed by simplification of the structure or combination of the original divided pieces and a liquid crystal display element manufacturing method using a flexographic printing plate manufactured using said manufacturing method. [Solution] A flexographic printing plate manufacturing method comprises a step for gluing together multiple divided pieces (4) on the pressure sensitive adhesive surface (10) of a pressure sensitive adhesive sheet (11) with spacers (13) therebetween, gluing a reinforcement sheet (2) thereon, removing the pressure sensitive adhesive sheet (11) and the spacers (13), filling a photosensitive resin composition in the gaps where the spacers (13) were removed and curing by irradiating active light to unify the multiple divided pieces (4). A liquid crystal display element manufacturing method comprises a step for forming a liquid crystal alignment layer by flexographic printing using said flexographic printing plate.

Description

technical field [0001] This invention relates to the manufacturing method of the flexographic printing plate used for forming the liquid crystal aligning film etc. of a liquid crystal display element, and the manufacturing method of the liquid crystal display element using the flexographic printing plate manufactured by this manufacturing method, for example. Background technique [0002] Flexographic printing with good printing characteristics is used to form a liquid crystal aligning film that is as uniform in thickness as possible, has no pores, etc., and requires high coating film quality on the electrode formation surface of the substrate constituting the liquid crystal display element. [0003] In general, a flexographic printing plate used for flexographic printing has an ink transfer layer whose one surface serves as a printing surface for holding ink during printing. In addition, in many cases, a reinforcing sheet made of various plastics or the like is laminated on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41C1/00B41N1/12G02F1/13G02F1/1333
CPCB41C1/00B41N1/12G02F1/13G02F1/1333
Inventor 吉永尚生田所信彦洼田匠志中井洋二
Owner NAKAN TECHNO
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