Liquid crystal display panel frame glue repair method

Abstract

The invention discloses a liquid crystal display panel frame glue repair method. The liquid crystal display panel frame glue repair method mainly comprises the following steps that communication between a liquid crystal display panel frame glue coating device and a liquid crystal display panel frame glue coating detecting device is achieved through the Ethernet, and the liquid crystal display panel frame glue coating detecting device transmits data of products detected to be abnormally coated to the liquid crystal display panel frame glue coating device; the products detected to be abnormally coated are determined and placed in a regulated temporary storage unit and are reversely conveyed to the liquid crystal display panel frame glue coating device through a conveying mechanism, then online type precise repair is conducted on abnormal points and abnormal lines, and therefore liquid crystal display panels which are scrapped due to abnormal frame glue coating can be effectively restored. The liquid crystal display panel frame glue repair method has the advantages that firstly, device remodeling is not needed, so that the development cost and the production cost are effectively saved; secondly, online type frame glue repair is conducted and the precision of repair and the quality of the products can be guaranteed; thirdly, the normal products and the abnormal products are produced in an alternate and mixed mode through the conveying unit, so that the operation loss can be reduced; finally, due to the fact that frame glue coating of the normal products and repair of the abnormal products are completed in the same system, waste of coating materials is effectively avoided.

Description

technical field [0001] The invention relates to a repair method, in particular to a liquid crystal panel sealant repair method. Background technique [0002] In the current TFT-LCD industry, panel production is developing towards large sizes. At present, TV LCD panels such as 55Inch and 64Inch have become the mainstream of the market. However, in the panel forming process, the sealant coating is a material process. Due to the characteristics of the material itself, the operation methods of the personnel, and the abnormal accuracy of the process equipment itself, the sealant coating will be broken and the glue will be fine. The actual glue breakage and glue fine scrap rate are maintained at 300-1400DPPM. If the 64Inch product sealant is abnormally scrapped for conversion, the loss is considerable. How to save abnormal products under the premise that the repair cost of abnormal sealant does not increase or is very small has become the focus of thinking in the industry. This i...

AI Technical Summary

Problems solved by technology

[0015] 1. Due to the modification of the frame rubber inspection equipment, even if it is a single-head repair mechanism, it also has the correction function of the repair nozzle (that is, the reduced version of the frame rubber coating equipment), and the equipment modification is complicated and costly;

[0016] 2. Due to the problem of timeliness of coating materials, this material will fail after a long time, so this method is easy to cause waste of coating materials; and the repair accuracy cannot be guaranteed

[0017] 3. When repairing again, the nozzle needs to be wiped with accumulated glue, and there is a risk of foreign matter explosion in the product

[0018] 4. Since the frame glue coating equipment is directly installed on the frame glue inspection equipment, a single machine will affect the operation of the whole line. If normal product selection is performed during repair, it is easy to cause the risk of abnormal coating

[0024] 1. It is necessary to develop new equipment, so there is a problem of equipment development cost. The separate coating unit is similar to the single-head transposition of frame glue coating equipment, and the cost is relatively high

[0025] 2. It is necessary to prepare additional repair coating materials. Due to the timeliness of the materials, it is easy to waste materials;

[0026] 3. When repairing again, the nozzle needs to be wiped with accumulated glue, and there is a risk of foreign matter explosion in the product

[0027] In summary, the main problems in the prior art are the waste of coating materials and the high production cost

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