Display module binding process

By merging fully automatic and semi-automatic lines, the process of binding display modules was reorganized, solving the problem of long trial production and sample preparation time, and improving production efficiency and equipment utilization.

CN119274437AActive Publication Date: 2025-01-07TRULY OPTO ELECTRONICS
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Patent Information

Application Number
CN202411335562.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-24
Publication Date
2025-01-07
Estimated Expiration
2044-09-24

AI Technical Summary

Technical Problem

In the existing technology, the trial production and sample making of COF displays involves a long process and a wide variety of models on a fully automated online basis, which results in long trial production and setup time, affecting the production and delivery schedule, and becoming a bottleneck for rushing to meet delivery deadlines and secure projects.

Method used

By merging fully automatic and semi-automatic lines, using the fully automatic line to produce common parts and the semi-automatic line to produce customized FPCs, the process of display module bonding is reorganized, including steps such as cleaning, attaching, bonding and electrical testing, ensuring a dust-free environment and precision control.

Benefits of technology

It improved the efficiency of trial production, reduced reliance on fully automated lines, and enhanced equipment utilization and product competitiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

A display module binding process specifically comprises the following steps: S1, a preparation stage: preparing a full-automatic production line, cleaning glass, and preparing a polaroid, foam and a COF; s2, full-automatic attaching, wherein the glass and the polaroid are attached together; s3, COF binding: binding the COF and the glass together by using a full-automatic device, and carrying out dispensing; s4, attaching foam: attaching the foam or PET to the back of the glass; s5, the FPC is customized, wherein the customized FPC and the display screen are bound together; and S6, binding the TFOG: manually binding the TFOG and the glass together, and carrying out dispensing. According to the display module binding process, general parts can be put into production in batches on a full-automatic line and then bound according to different FPCs of different items on a semi-automatic line, so that the trial production efficiency is improved, the dependence on the full-automatic line is reduced, and the rhythm of other mass production models is not influenced.
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Description

Technical Field

[0001] The present invention relates to the technical field of display module binding process, and in particular to a display module binding process. Background Art

[0002] At present, the trial production and sampling of display screens with COF need to be arranged on the fully automatic line for production. However, the fully automatic line production has a long production process, a variety of models, a long trial production and adjustment time, and the time occupied by the fully automatic line equipment will become very long, which seriously affects the sample production time and the production and delivery date of the trial production samples, causing a serious bottleneck for rushing delivery dates and rushing projects. Therefore, the process is now reorganized and merged, and the fully automatic line and semi-automatic production line are combined for joint production, which greatly improves the sample preparation efficiency, improves the equipment utilization rate, and indirectly improves product competitiveness. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a display module binding process.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] A display module binding process specifically includes the following steps: S1, preparation stage: prepare a fully automatic production line and clean the glass, and prepare a polarizer, foam and COF; S2, fully automatic attachment: bond the glass and the polarizer together; S3, COF binding: facilitate fully automatic equipment to bind the COF and the glass together, and perform glue dispensing; S4, attach foam: attach foam or PET to the back of the glass; S5, customize FPC: bind the customized FPC to the display screen; S6, bind TFOG: manually bind TFOG and the glass together and perform glue dispensing; S7, bind FOF: manually bind FOF and the glass together and perform glue dispensing; S8, electrical QC: perform QC current detection on the display screen after binding.

[0006] In one of the embodiments, during the step S1, the staff needs to prepare polarizers and foams of the same size as the glass, and when cleaning the glass, it must be ensured that there is no dust on both sides thereof, and the cleaning environment must be ensured to be a dust-free environment.

[0007] In one of the embodiments, in the step S2, glass, polarizer and foam of the same size need to be placed in a fully automatic production line for fully automatic attachment.

[0008] In one of the embodiments, after the S3 step, fully automatic production equipment is required to bond the COF to the glass through ACF high-temperature pressing. The bonding temperature is required to be 200°~250°, the pressure is 30N, the time is 8S~10S, and glue is dispensed. The glue dispensing temperature needs to be maintained at 60°, and a certain pressure is required during glue dispensing.

[0009] In one of the embodiments, before the S4 step, it is necessary to check whether the tear-off film attached to one side of the foam with the grid glue or PET is intact, and the tear-off film needs to be torn off before attachment, and it is necessary to ensure that it is attached in a dust-free environment.

[0010] In one of the embodiments, during the S5 step, different FPCs are customized according to different project needs, and the customized FPCs are bound to the COF through ACF high-temperature pressing, and corresponding metal PIN pins are provided at corresponding positions of the FPC and the COF, and electrical connections are achieved through the pins, and glue is dispensed.

[0011] In one of the embodiments, in the step S6, when manually binding the TFOG, it is necessary to bind it on a semi-automatic production line, which is beneficial for the positioning device on the semi-automatic production line to ensure accuracy, and after binding the TFOG, glue needs to be dispensed at the corresponding position.

[0012] In one of the embodiments, in the step S7, when manually binding the FOF, it is necessary to bind it on a semi-automatic production line, which is beneficial for the positioning device on the semi-automatic production line to ensure accuracy, and after binding the FOF, glue needs to be dispensed at the corresponding position.

[0013] In one of the embodiments, in the steps S6 and S7, after binding TFOG and FOF, when applying protective glue, it is necessary to ensure that the temperature is stable at 60°, and a certain pressure is required when applying glue. When binding TFOG and FOF, attention should be paid to temperature control to ensure that the quartz strip will not soften, deform or crystallize due to exceeding the temperature limit during use, while also protecting the quartz strip from damage.

[0014] In one of the embodiments, in step S8, after the display module after the assembly is bound is subjected to electrical QC, the products that meet the requirements and the products that do not meet the requirements need to be placed separately.

[0015] Compared with the prior art, the present invention has at least the following advantages:

[0016] A display module binding process of the present invention, generally speaking, the display screen, glass, cof, polarizer and foam of the product are basically universal, but the difference is that different customers need to customize different FPCs for different projects, so the universal parts can be put into batch production on the full-automatic line first, and then bound on the semi-automatic line according to different FPCs for different projects, thereby improving the trial production efficiency and reducing the dependence on the full-automatic line without affecting the beat of other mass production models. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the fully automatic process of display module binding process of the present invention;

[0019] Figure 2 It is a semi-automatic flow chart of the display module binding process of the present invention. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0021] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0022] Unless otherwise clearly stipulated and limited, terms such as "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] like Figure 1-2 As shown, a display module binding process specifically includes the following steps: S1, preparation stage: prepare the fully automatic production line and clean the glass, and prepare the polarizer, foam and COF; S2, fully automatic attachment: bond the glass and polarizer together; S3, COF binding: facilitate the fully automatic equipment to bind the COF and the glass together, and dispense glue; S4, attach foam: attach the foam or PET to the back of the glass; S5, customize FPC: bind the customized FPC to the display screen; S6, bind TFOG: manually bind TFOG to the glass and dispense glue; S7, bind FOF: manually bind FOF to the glass and dispense glue; S8, electrical QC: perform QC current detection on the display screen after binding. It should be noted that the order of steps S2 and S3 can be changed under different process requirements.

[0025] like Figure 1 As shown, in one embodiment, during the step S1, the staff needs to prepare the polarizer and foam of the same size as the glass, and when cleaning the glass, it must be ensured that there is no dust on both sides of the glass, and the cleaning environment must be ensured to be a dust-free environment.

[0026] like Figure 1 As shown, in one embodiment, in the step S2, glass, polarizer and foam of the same size need to be placed in a fully automatic production line for fully automatic attachment.

[0027] like Figure 1 As shown, in one embodiment, after the S3 step, a fully automatic production equipment is required to bond the COF to the glass through ACF high-temperature pressing. The bonding temperature is required to be 200°~250°, the pressure is 30N, the time is 8S~10S, and glue is dispensed. The glue dispensing temperature needs to be maintained at 60°, and a certain pressure is required during glue dispensing.

[0028] like Figure 1 As shown, in one embodiment, before the S4 step, it is necessary to detect whether the tear-off film attached to one side of the foam with mesh glue or PET is intact, and the tear-off film needs to be torn off before attachment, and at the same time, it is necessary to ensure that it needs to be attached in a dust-free environment.

[0029] like Figure 2As shown, in one embodiment, during the S5 step, different FPCs are customized according to different project needs, and the customized FPCs are bound to the COF through ACF high-temperature pressing, and corresponding metal PIN pins are provided at corresponding positions of the FPC and the COF, and electrical connections are achieved through the pins, and glue is dispensed.

[0030] like Figure 2 As shown, in one embodiment, in the step S6, when manually binding the TFOG, it is necessary to bind it on a semi-automatic production line, which is beneficial for the positioning device on the semi-automatic production line to ensure accuracy, and after binding the TFOG, glue needs to be dispensed at the corresponding position.

[0031] like Figure 2 As shown, in one embodiment, in the step S7, when manually binding the FOF, it is necessary to bind it on a semi-automatic production line, which is beneficial for the positioning device on the semi-automatic production line to ensure accuracy, and after binding the FOF, glue needs to be dispensed at the corresponding position.

[0032] like Figure 2 As shown, in one embodiment, in the steps S6 and S7, after binding TFOG and FOF, when applying protective glue, it is necessary to ensure that the temperature is stable at 60°, and a certain pressure is required when applying glue. When binding TFOG and FOF, attention should be paid to temperature control to ensure that the quartz strip will not soften, deform or crystallize due to exceeding the temperature limit during use, while also protecting the quartz strip from damage.

[0033] like Figure 2 As shown, in one embodiment, in the step S8, after the display module after the binding components are completed is subjected to electrical QC, the products that meet the requirements and the products that do not meet the requirements need to be placed separately.

[0034] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A display module binding process, characterized in that: The specific steps include: S1, preparation stage: prepare the fully automatic production line and clean the glass, and prepare polarizers, foam and COF; S2, fully automatic attachment: attach the glass and polarizer together; S3, COF binding: It is beneficial for fully automatic equipment to bind COF and glass together and perform glue dispensing; S4. Attaching foam: attaching foam or PET to the back of the glass; S5, customized FPC: bind the customized FPC to the display screen; S6, Binding TFOG: Manually bind TFOG and glass together and dispense glue; S7, binding FOF: manually binding FOF and glass together and dispensing glue; S8, electrical measurement QC: perform QC current detection on the display screen after binding.

2. A display module binding process according to claim 1, characterized in that: In the step S1, the staff needs to prepare polarizers and foams of the same size as the glass, and when cleaning the glass, it must be ensured that there is no dust on both sides of the glass, and the cleaning environment must be dust-free.

3. A display module binding process according to claim 1, characterized in that: In the step S2, glass, polarizer and foam of the same size need to be placed into a fully automatic production line for fully automatic attachment.

4. A display module binding process according to claim 1, characterized in that: After the S3 step, fully automatic production equipment is required to bond the COF to the glass through ACF high-temperature pressing. The bonding temperature is required to be 200°~250°, the pressure is 30N, the time is 8S~10S, and glue is dispensed. The glue dispensing temperature needs to be maintained at 60°, and a certain pressure is required during glue dispensing.

5. A display module binding process according to claim 1, characterized in that: Before the step S4, it is necessary to check whether the tear-off film attached to the side of the foam with the grid glue or PET is intact, and the tear-off film needs to be torn off before attachment, and it is also necessary to ensure that it is attached in a dust-free environment.

6. A display module binding process according to claim 1, characterized in that: In the step S5, different FPCs are customized according to different project needs, and the customized FPCs are bound to the COF through ACF high-temperature pressing. Corresponding metal PIN pins are arranged at corresponding positions of the FPC and the COF, and electrical connections are achieved through the pins, and glue is dispensed.

7. A display module binding process according to claim 1, characterized in that: In the step S6, when manually binding the TFOG, it needs to be bound on a semi-automatic production line, which is beneficial for the positioning device on the semi-automatic production line to ensure accuracy, and after binding the TFOG, glue needs to be dispensed at the corresponding position.

8. A display module binding process according to claim 1, characterized in that: In the step S7, when manually binding the FOF, it needs to be bound on a semi-automatic production line, which is beneficial for the positioning device on the semi-automatic production line to ensure accuracy, and after binding the FOF, glue needs to be dispensed at the corresponding position.

9. A display module binding process according to claim 1, characterized in that: In the steps S6 and S7, after binding TFOG and FOF, when applying protective glue, it is necessary to ensure that the temperature is stable at 60°, and a certain pressure is required when applying glue. When binding TFOG and FOF, attention should be paid to temperature control to ensure that the quartz bead will not soften, deform or crystallize due to exceeding the temperature limit during use, while also protecting the quartz bead from damage.

10. The display module binding process according to claim 1, characterized in that: In the step S8, after the display module with the components bound is subjected to electrical QC, the products that meet the requirements and those that do not meet the requirements need to be placed separately.

Citation Information

Patent Citations

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