Coating mechanism and coating method, defect correction device and defect correction method

A coating and defect technology, applied in nonlinear optics, instruments, optics, etc., can solve the problems of poor operation convenience and less ink, and achieve the effect of easy coating

Inactive Publication Date: 2009-12-16
NTN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the method of Patent Document 1, such as Figure 46 As shown, because the white defect 304 is covered with a circular ink layer larger than the white defect 304, the normal part around the white defect 304 is also coated with ink, resulting in an overlapping portion 307 of ink
However, with the increase in the size of substrates in recent years, it is not easy to perform high-precision positioning on the entire surface of the substrate.
[0011] Because the coating size is determined by the size of the front end of the coating needle, when the laser cutting size changes, the coating needle needs to be replaced, which is inconvenient to work.
[0012] Similar to Patent Document 1, only the ink adhering to the flat surface of the tip of the applicator needle is transferred and applied, so there is a problem that the amount of ink that can be applied at one time is small

Method used

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  • Coating mechanism and coating method, defect correction device and defect correction method
  • Coating mechanism and coating method, defect correction device and defect correction method
  • Coating mechanism and coating method, defect correction device and defect correction method

Examples

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Effect test

Embodiment Construction

[0106] (Embodiment 1)

[0107] figure 1 (a) is a front view showing the tip portion of the applicator needle 1 according to Embodiment 1 of the present invention, figure 1 (b) is its bottom view, figure 1 (c) is figure 1 Enlarged view of part A of (b), figure 1 (d) is figure 1 (a) ID-ID line sectional view, figure 1 (e) is figure 1 Enlarged view of part B of (d).

[0108] exist figure 1 In (a) to (e), a tapered part 2 is provided at the front end of the coating needle 1, and the tapered part 2 makes the cross-sectional area of ​​the coating needle 1 from The front end of the application needle 1 gradually expands toward the base end, and a flat surface 3 is provided at the front end of the application needle 1, and on the outer peripheral surface of the front end of the application needle 1, a predetermined dimension is formed from the front end to the upper part of the tapered part 2. slot 4.

[0109] In this way, by providing the tapered portion 2, the flat ...

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PUM

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Abstract

The present invention provides a coating needle capable of accurately, quickly and easily coating a liquid material. The coating needle (1) is formed in a tapered shape at the distal end, and is provided with a flat surface (3) at the distal end, and a groove (4) is formed in the outer peripheral surface of the distal end. When the flat surface (3) of the front end comes into contact with the substrate (6), the ink (5) accumulated in the upper part of the taper (2) and in the groove (4) flows out to the front end due to capillary action. Therefore, a large amount of ink (5) can be applied quickly and easily.

Description

(1) Technical field [0001] The present invention relates to a coating needle, a coating mechanism using the coating needle, a defect correction device, a coating method, and a method for correcting defects of a color filter for a liquid crystal display panel. A coating needle for applying a liquid material in contact with a fine region, a coating mechanism using the coating needle, a defect correction device, a coating method, and a defect correction method for a color filter for a liquid crystal display panel. (2) Background technology [0002] In recent years, as the size and definition of LCD (liquid crystal display) have increased, the number of pixels has also increased. Therefore, it is difficult to manufacture a defect-free LCD, and the probability of defects has gradually increased. Under such circumstances, in order to improve the yield of products, a defect correction device that corrects defects that occur in the manufacturing process of LCD color filters is essen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13G02F1/1335
Inventor 猿田正弘山中昭浩松岛昌良
Owner NTN CORP
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