Unlock instant, AI-driven research and patent intelligence for your innovation.

Flexible printed board, manufacturing method thereof, and manufacturing method of substrate for liquid crystal panel

A flexible printing plate and manufacturing method technology, applied in printing, printing machine, printing process and other directions, can solve the problems of easy occurrence of pinholes in the ink layer and deviation of the ink layer, and achieve the effect of excellent thickness reproducibility and uniform thickness

Active Publication Date: 2018-01-09
NAKAN TECHNO
View PDF11 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] However, there is a problem that the thickness of the ink layer tends to vary according to the area of ​​the printing surface, and pinholes tend to appear on the ink layer, so that it is impossible to form an ink layer or a liquid crystal alignment film with a uniform thickness and good thickness reproducibility without these problems.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flexible printed board, manufacturing method thereof, and manufacturing method of substrate for liquid crystal panel
  • Flexible printed board, manufacturing method thereof, and manufacturing method of substrate for liquid crystal panel
  • Flexible printed board, manufacturing method thereof, and manufacturing method of substrate for liquid crystal panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0115] (roughened plate)

[0116] As the roughened plate, a plate whose TPU surface is roughened by pressing plate molding using an embossing roll is used. The TPU surface exposed on the opposite side, and this TPU board is a TPU board (silkron (registered trademark) SNESS80-150 μm manufactured by Okura Industries Co., Ltd. manufactured by Okura Industry Co., Ltd.) with a PET board having a thickness of 100 μm as a reinforcing board. This roughened sheet has penetrability to ultraviolet rays as active rays.

[0117]The mean square of the roughness curve of the shaped surface was calculated from the roughness curve obtained by measurement using a scanning confocal laser microscope (LEXT (registered trademark) OLS (registered trademark) 3100 manufactured by Olympus Co., Ltd.). The root slope RΔq was obtained as the root mean square of the local slope dz / dx in the reference length described in Item 4.4.1 of JIS B0601:2001 "Root mean square slope of the profile curve", and the re...

Embodiment 2～9

[0133] (Examples 2-9, Comparative Examples 1-4)

[0134] In Examples 2 to 9 and Comparative Examples 2 and 3, the TPU surface exposed on the opposite side of the TPU plate used in Example 1, which is the same as the TPU plate used in Example 1, was changed by adding A roughened embossing roll was formed by pressing the plate, and a roughened plate 4 having the values ​​shown in Tables 1 to 3 below for the root mean square slope RΔq of the roughness curve of the shaped surface and the specific surface area was prepared.

[0135] In addition, in Comparative Examples 1 and 4, instead of the TPU sheet used in Example 1, the shape-forming surface was prepared to be matted, and the root mean square slope RΔq and specific surface area of ​​the roughness curve are shown in Table 1 below. , and a PET film (manufactured by Kaisei Kogyo Co., Ltd., Clear Basis product) having the values ​​shown in Table 2 were used as the roughened sheet 4 .

[0136] In addition, a flexible printed board...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
root mean square slopeaaaaaaaaaa
root mean square slopeaaaaaaaaaa
Login to View More

Abstract

The invention provides a flexible printed circuit board of a liquid crystal epitaxial film, wherein the flexible printed circuit board is formed by flexible printing with low-wettable ink as raw material of the new material of liquid crystal epitaxial film corresponding to a liquid crystal panel which is high in definition and excellent in function, and the flexible printed circuit board is uniform in thickness and excellent in reproducibility. The invention also provides a manufacturing method of the flexible printed circuit board and method for manufacturing a substrate for the liquid crystal panel. For the flexible printed circuit board (16), a printed surface (13) is roughened to make the root-mean-square slope of the rough curve to be R delta q 0.9 to 3.0 and the ratio to the surface area is 2.8-4.9. In the manufacturing method, a photosensitive resin composite layer (8) is formed on the profile surface (3) of the printed side (13) and irradiated by active rays to cure the layers of the photosensitive resin composite.

Description

technical field [0001] The present invention relates to a flexible printed board that can be suitably used for forming, for example, a liquid crystal alignment film of a substrate for a liquid crystal panel by flexographic printing, a method for manufacturing the same, and a method for manufacturing a substrate for a liquid crystal panel using the flexible printed board. Background technique [0002] In order to form a liquid crystal aligning film on the electrode formation surface of the board|substrate for liquid crystal panels, the technique which uses a printing method, especially a flexographic printing method has been studied. [0003] The liquid crystal aligning film is required to be as uniform in thickness as possible without pinholes, etc., and to be as thin as possible. [0004] Therefore, the printing surface (surface which holds ink at the time of printing) of the flexographic printing plate used for flexographic printing must have high retentivity with respect ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B41N1/12B41C1/00G02F1/1337
CPCB41C1/00B41F5/24B41N1/12B41N1/14
Inventor 越智淳田所信彦洼田匠志森康广
Owner NAKAN TECHNO