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

Color Filter Rework Method

A color filter and process technology, which is applied in the field of color filter rework, can solve the problems of increasing cost, affecting the yield rate of color filter products, and reducing the yield of finished products, so as to reduce product production costs and reduce unqualified products Ratio, the effect of improving product yield

Active Publication Date: 2019-05-31
南京中电熊猫液晶材料科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the production process of color filters, black matrix BM, red-green-blue RGB and column height PS process and its repair process, there are a certain proportion of unqualified products, which will enter the rework process, but in the actual production structure, due to When checking the characteristics of the machine, misjudgments often occur, and qualified products are also judged as unqualified products. In this way, these misjudged unqualified products and unqualified products all enter the rework process, which affects the good quality of color filter products. Rate
[0003] In the existing technology, after the black matrix BM, red, green and blue RGB and column height PS processes and their repair processes, the products are judged as unqualified products by the inspection equipment, and all of them automatically enter the rework process, and the rework equipment automatically etch and strips the products to make them white Glass; this makes the unqualified products misjudged by the inspected equipment also enter the rework process, which reduces the yield and increases the cost of the product

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
  • Color Filter Rework Method
  • Color Filter Rework Method
  • Color Filter Rework Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The substrate is judged as NG by the inspection machine at the F4000 station of the Green process, and the substrate will be returned to the F5000 station after the manual rejudgment is OK through the system;

[0048] (1) The NG batch information of the NG port that is normally debited cannot be queried under the batch list on the main interface of the system, and needs to be checked in the manual review interface of the reworked substrate under the batch menu;

[0049] (2) Enter the manual rejudgment interface of the reworked substrate, click the view button, and in the batch list, you can see the NG batch information of the NG port of each site that is normally billed. The column of the previous process site shows the source site of the NG batch of the cassette, the column of the rework process site refers to the rework site that the batch of substrates will enter if the rejudgment is NG, and the column of the cassette number shows It is the cassette information enter...

Embodiment 2

[0056] The substrate is judged as NG by inspection machine at F3000 site of Red process, if all of them are NG by human judgment, the substrate will enter the F550R rework process;

[0057] If the information of a certain batch of substrates in the artificial rejudgment interface of reworked substrates is all rejudged as NG, as shown in the figure, assuming that all the 2 substrates in the batch P38569R052 corresponding to C6CF0647 are rejudged as NG products, perform the following operations:

[0058] 1) Click the batch P38569R052 corresponding to C6CF0647 under the batch list, and check the check box for selecting all defective substrates;

[0059] 2) After clicking OK to display that the operation is successful, you can see the batch information corresponding to C6CF0647 at the F550R site on the main interface of the system, and the NG Lot will enter the rework site.

Embodiment 3

[0061] Substrates are judged to be NG at the F2000 station of the BM process. After manual confirmation, some of them are judged to be OK products, and some are judged to be NG products. The products need to enter different processes;

[0062] If there are several substrates in a certain batch of substrate information in the artificial re-judgment interface for reworked substrates, it needs to be judged as OK and returned to the main process site, and the rest NG is sent to the Rework site, assuming that one of the two substrates in the batch P38569R061 corresponding to C6CF0270 Substrate P385653424F7 needs to be changed to OK, and the rest is NG. The following operations need to be performed:

[0063] 1) Click the batch P38569R061 corresponding to C6CF0270 under the batch, and check the check box in front of the substrate that needs to be re-judged as OK under the list of defective substrates;

[0064] 2) Click the right arrow to import the OK substrate information to the goo...

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

No PUM Login to View More

Abstract

The invention discloses a color filter reworking method. The color filter reworking method includes the technological steps of 1) classifying misjudged unqualified products NG and then putting the unqualified products NG into a BM (black matrix) manufacturing process; 2) subjecting the unqualified products NG to a Rework process or making the same return to next manufacturing process of a main process flow; 3) making the misjudged unqualified products NG return to next manufacturing process of the main process flow after the misjudged unqualified products NG are artificially judged in a temporary rework storage area FR01B in a PS manufacturing process and a PS repair manufacturing process; 4) setting a logical flow so as to prevent products from being misjudged as the unqualified products NG due to possible human negligence. The color filter reworking method has the advantages that the problem that the unqualified products NG misjudged by equipment enter the Rework process automatically and cannot return to the main process flow directly is solved; the rate of the unqualified products NG can be decreased through human judgment, so that product yield is increased and product production cost is reduced.

Description

technical field [0001] The invention relates to a color filter rework method, which belongs to the technical field of color filter production. Background technique [0002] In the production process of color filters, black matrix BM, red-green-blue RGB and column height PS process and its repair process, there are a certain proportion of unqualified products, which will enter the rework process, but in the actual production structure, due to When checking the characteristics of the machine, misjudgments often occur, and qualified products are also judged as unqualified products. In this way, these misjudged unqualified products and unqualified products all enter the rework process, which affects the good quality of color filter products. Rate. [0003] In the existing technology, after the black matrix BM, red, green and blue RGB and column height PS processes and their repair processes, the products are judged as unqualified products by the inspection equipment, and all of...

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): G02F1/1335
CPCG02F1/133512G02F1/133514G02F1/133516
Inventor 庞明辉彭建中易杜军王玮石卉吴云桂
Owner 南京中电熊猫液晶材料科技有限公司