Multi-layer combined mobile phone screen and preparation process

Abstract

The present invention relates to the technical field of mobile phone screens, and specifically to a multi-layer combination mobile phone screen and a preparation process, comprising the following steps: placing a mobile phone screen material layer in a bonding device, completing a bonding molding process, and cutting the bonded and molded material to obtain a multi-layer combination mobile phone screen. The bonding molding process specifically includes: obtaining real-time boost data during the bonding process; based on the boost data, analyzing the bonding process of the multi-layer combination mobile phone screen to obtain a bonding pressure change value during the analysis period; based on the bonding pressure change value during the analysis period, calculating a correction evaluation value, and then judging to obtain a large or small bonding correction degree signal; based on the large or small bonding correction degree signal, the bonding device generates a corresponding instruction work; obtaining the current pressure regulation rate, and controlling the bonding pressure of the bonding device; the present invention ensures that the bonding device accurately completes the multi-layer combination mobile phone screen bonding work within the specified time of the process.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile phone screens, and in particular to a multi-layer combined mobile phone screen and a preparation process thereof. Background Art

[0002] Chinese patent CN221010164U discloses a multi-layer combined mobile phone screen, including an inner screen mainboard, the outer wall of the inner screen mainboard is provided with a main shell assembly, the outer wall of the main shell assembly is provided with a limit assembly, the number of the limit assemblies is two, the outer wall of the inner screen mainboard is provided with a data cable, one end of the data cable is provided with a terminal head, the inner wall of the main shell assembly is provided with an outer screen, the outer wall of the inner screen mainboard is provided with a rubber block, the limit assembly includes an outer frame provided on the outer wall of the main shell assembly, the inner wall of the outer frame is provided with a limit slot, the inner wall of the limit slot is fixedly connected to a spring, one end of the spring is fixedly connected to a resist frame, and the outer wall of the resist frame is fixedly connected to a rubber layer;

[0003] With respect to the above-mentioned prior art, by setting up two limit components, the device can maintain good stable performance in use with the inside of the mobile phone during use, thereby improving the use effect of the device and providing convenience for the user; it currently only improves the stability of the use of the multi-layer combination mobile phone screen, and in the preparation process of the multi-layer combination mobile phone screen, the quality assurance of the bonding process between the multi-layer combination material layers is the key to effectively improving the preparation quality of the multi-layer combination mobile phone screen. If the bonding process of the multi-layer combination mobile phone screen is unstable during the preparation process, it will cause the multi-layer combination mobile phone screen to have many defective products and fail to meet the requirements of the use standards. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-layer combination mobile phone screen and a preparation process. The technical problem solved by the present invention is: currently, only the stability performance of the use of the multi-layer combination mobile phone screen is improved, and in the preparation process of the multi-layer combination mobile phone screen, the quality assurance of the bonding process between the multi-layer combination material layers is the key to effectively improving the preparation quality of the multi-layer combination mobile phone screen. If the bonding process of the multi-layer combination mobile phone screen is unstable during the preparation process, it will cause the multi-layer combination mobile phone screen to have many defective products and fail to meet the requirements of the use standards.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A preparation process for a multi-layer assembled mobile phone screen comprises the following steps: placing a mobile phone screen material layer in a laminating device, completing a laminating and forming process, and cutting the laminated and formed material to obtain a multi-layer assembled mobile phone screen. The laminating and forming process specifically comprises the following steps:

[0007] Step 1: Acquire real-time boost data during the bonding process; the real-time boost data includes real-time boost value;

[0008] Step 2: Based on the pressure boost data, analyze the lamination process of the multi-layer assembled mobile phone screen to obtain the lamination pressure change value during the analysis period;

[0009] Step 3: Based on the fitting pressure change value ZB during the analysis period, the correction evaluation value ZPJ is calculated and then compared with the corresponding threshold value to obtain a signal indicating whether the fitting correction degree is large or small;

[0010] Step 4: Based on the large or small signal of the degree of lamination correction, the lamination device generates corresponding instructions;

[0011] Step 5: Based on the correction instruction, obtain the current pressure control rate and control the bonding pressure of the bonding device.

[0012] As a further solution of the present invention: in step 1, the time period from when the bonding pressure is zero to when it rises to the preset pressure, that is, the time point from when bonding starts to when the pressure holding starts, is obtained and marked as the real-time pressure increase value.

[0013] As a further solution of the present invention: in step 2, the analysis process of the fitting pressure change value ZB during the analysis period is:

[0014] The fitting deviation change value ZTP during the analysis period and the fitting deviation change value KTP during the analysis period are used to calculate the fitting pressure change value ZB during the analysis period.

[0015] As a further solution of the present invention, the process of obtaining the fitting deviation change value ZTP during the analysis period is as follows:

[0016] Based on the fitted analysis signal, an analysis period is set, and the real-time boost value at the beginning of the analysis period, the real-time boost value at the midpoint of the analysis period, and the real-time boost value at the end of the analysis period are obtained, and marked as the analysis start boost value ZSk, the analysis middle boost value ZSz, and the analysis end boost value ZSj respectively;

[0017] The fitting deviation change value ZTP during the analysis period is calculated.

[0018] As a further solution of the present invention, the process of obtaining the fitting deviation change value KTP during the analysis period is as follows:

[0019] Based on the fitted analysis signal, an analysis period is set (the analysis period is set by those skilled in the art based on experience), and the real-time boost rate at the beginning of the analysis period, the real-time boost rate at the midpoint of the analysis period, and the real-time boost rate at the end of the analysis period are obtained, and are marked as the analysis start boost rate KSk, the analysis middle boost rate KSz, and the analysis end boost rate KSj respectively;

[0020] The fitting deviation change value KTP during the analysis period is calculated.

[0021] As a further solution of the present invention: the generation process of the fitting analysis signal is:

[0022] Obtaining a real-time boost pressure value, and comparing the real-time boost pressure value with the bonding pressure at a preset bonding process time;

[0023] If the real-time pressure increase value is greater than the bonding pressure of the preset bonding process corresponding to the time, a bonding analysis signal is generated.

[0024] As a further solution of the present invention: In step 3, the process of obtaining the corrected evaluation value ZPJ is as follows:

[0025] Obtain the current time point and the duration of the boost phase in the bonding process, calculate the difference between the duration of the boost phase and the current time point to obtain the expected arrival time TDy;

[0026] Calculate and obtain the corrected assessment value ZPJ;

[0027] If the correction evaluation value ZPJ is less than the correction evaluation threshold, a small signal of the degree of fit correction is generated.

[0028] As a further solution of the present invention: in step 4, when a small signal of the degree of fitting correction is obtained, the fitting device generates a correction instruction and regulates the fitting pressure.

[0029] As a further solution of the present invention: in step 5, when the correction instruction is obtained, the real-time boost pressure value and the holding pressure value are obtained, and the difference between the real-time boost pressure value and the holding pressure value is calculated to obtain the pressure control difference ZFt;

[0030] The pressure control difference ZFt and the expected arrival time TDy are used to calculate the current pressure control rate KTf;

[0031] The calculation process of the error factor A is as follows: it is obtained by calculating the ratio of the upper correction evaluation value ZPJ to the correction evaluation threshold.

[0032] A multi-layer combined mobile phone screen, comprising:

[0033] The cover flexible glass, the TSP film substrate with TSP on the upper surface, the polarizer, and the RGB plate are arranged in sequence.

[0034] Beneficial effects of the present invention:

[0035] The multi-layer combined mobile phone screen of the present invention is usually composed of the following key layers: protective glass layer: this is the outermost layer of the mobile phone screen, which mainly protects the internal screen from physical damage such as scratches and impacts; the protective glass layer is usually made of high-strength, wear-resistant materials, such as Corning Gorilla Glass; touch layer: located under the protective glass layer, it is the key layer for users to interact with the mobile phone screen; the touch layer can sense the user's touch operation and convert it into an electrical signal to transmit it to the mobile phone processor; liquid crystal layer (or OLED layer): this is the core display layer of the mobile phone screen, responsible for displaying images, text and other information. The liquid crystal layer forms images by controlling the arrangement of liquid crystal molecules and the passage of light, while the OLED layer achieves display through self-luminous technology. It has the following advantages: Better display effect: The multi-layer combined mobile phone screen can significantly improve the display effect by optimizing the structure and materials between each layer, including higher resolution, wider color gamut, deeper black, etc.; Stronger durability: The addition of a protective glass layer makes the mobile phone screen more resistant to drops and scratches, extending the service life of the phone; Better interactive experience: The sensitivity and accuracy of the touch layer are crucial to the user experience. The multi-layer combined mobile phone screen can provide a smoother and more accurate interactive experience by optimizing the design of the touch layer; Richer functionality: The multi-layer combined mobile phone screen can also integrate more functional layers, such as fingerprint recognition, pressure sensing, etc., to further enrich the phone's functions and user experience.

[0036] The present invention improves the preparation process by acquiring real-time boost data during the bonding process; analyzing the bonding process of the multi-layer modular mobile phone screen based on the boost data to obtain a bonding pressure change value during the analysis period; calculating a correction evaluation value ZPJ based on the bonding pressure change value ZB during the analysis period, and then comparing it with the corresponding threshold to obtain a signal indicating whether the bonding correction degree is large or small; the present invention determines whether the real-time bonding pressure of the multi-layer modular mobile phone screen meets the standard requirements during the bonding process, especially during the boost phase; and if it does not meet the requirements, determines whether the bonding process should be corrected based on the bonding pressure change trend and the bonding working time, thereby ensuring the stability and pass rate of the multi-layer modular mobile phone screen in subsequent preparation processes;

[0037] And based on the large or small signal of the degree of fitting correction, the fitting equipment generates corresponding instructions; based on the correction instruction, the current pressure control rate is obtained to control the fitting pressure of the fitting equipment; the present invention accurately generates corresponding instructions according to the real-time fitting process, thereby ensuring the quality of the preparation of the multi-layer combination mobile phone screen, and within a reasonable correction range, by combining the current fitting pressure error and the actual fitting situation, accurately outputting the fitting pressure control parameters, thereby ensuring that the fitting equipment accurately completes the multi-layer combination mobile phone screen fitting work within the specified time of the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention will be further described below with reference to the accompanying drawings.

[0039] Figure 1 is a process flow chart of Example 1 of the present invention;

[0040] Figure 2 This is a process flow chart of Example 2 of the present invention. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0042] Example 1

[0043] The present invention is a multi-layer combined mobile phone screen, comprising:

[0044] The invention comprises a cover flexible glass, a TSP film substrate with a TSP provided on its upper surface, a polarizer, and an RGB panel, which are arranged in sequence. The lower surface of the cover flexible glass and the upper surface of the TSP film substrate are connected by a first OCA optical adhesive, and the lower surface of the TSP film substrate and the upper surface of the polarizer are connected by a second OCA optical adhesive. The RGB panel is arranged between the thin film package and the film substrate, and the upper surface of the thin film package and the lower surface of the polarizer are connected by a third OCA optical adhesive.

[0045] A process for preparing a multi-layer combined mobile phone screen comprises the following steps:

[0046] S1: Place the covered flexible glass, the first OCA optical adhesive, TSP, the TSP film substrate, the second OCA optical adhesive, the polarizer, the third OCA optical adhesive, the film package, the RGB board, the film substrate, the acrylic adhesive, and the base film in order from top to bottom;

[0047] S2: Place the materials placed in S1 into the bonding equipment to complete the bonding and molding process;

[0048] S3: Cutting the laminated materials to obtain a multi-layer assembled mobile phone screen;

[0049] See also Figure 1As shown, in S2, the quality of the bonding molding is to effectively guarantee the preparation quality of the multi-layer assembled mobile phone screen. The bonding molding is stable and meets the process standards, which can effectively reduce the unqualified rate of the multi-layer assembled mobile phone screen. The bonding molding process specifically includes the following steps:

[0050] Step 1: Obtain real-time boost data during the bonding process;

[0051] The real-time boost data includes a real-time boost value;

[0052] In some embodiments, during the lamination process of a multi-layer assembled mobile phone screen, the time period from when the lamination pressure is zero to when it rises to a preset pressure is obtained, that is, from the time point when lamination starts to the time point when pressure holding starts, and marked as the real-time pressure increase value;

[0053] Step 2: Based on the pressure boost data, analyze the lamination process of the multi-layer assembled mobile phone screen to obtain the lamination pressure change value during the analysis period;

[0054] In some embodiments, a real-time pressure increase value is obtained, and the real-time pressure increase value is compared with the bonding pressure at a time corresponding to a preset bonding process;

[0055] If the real-time pressure increase value is greater than the lamination pressure at the time corresponding to the preset lamination process, it means that the pressure during the current lamination period deviates significantly from the pressure of the standard process and is not within the process error range, which may affect the quality of the mobile phone screen assembly into the finished product. In this case, a lamination analysis signal is generated;

[0056] If the real-time pressure rise value is less than or equal to the laminating pressure at the time corresponding to the preset laminating process, it indicates that the pressure during the current laminating process has a small deviation from the pressure of the standard process and is within the process error range. This has little impact on the quality of the mobile phone screen assembly as a finished product, and a laminating pressure qualified signal is generated.

[0057] Based on the fitted analysis signal, an analysis period is set (the analysis period is set by those skilled in the art based on experience), and the real-time boost value at the beginning of the analysis period, the real-time boost value at the midpoint of the analysis period, and the real-time boost value at the end of the analysis period are obtained, and are marked as the analysis start boost value ZSk, the analysis middle boost value ZSz, and the analysis end boost value ZSj respectively;

[0058] The fitting deviation change value ZTP during the analysis period is calculated using the formula ZTP=|ZSj-ZSz|-|ZSz-ZSk|;

[0059] Then, based on the fitted analysis signal, an analysis period is set (the analysis period is set by those skilled in the art based on experience), and the real-time boost rate at the beginning of the analysis period, the real-time boost rate at the midpoint of the analysis period, and the real-time boost rate at the end of the analysis period are obtained, and are marked as the analysis start boost rate KSk, the analysis middle boost rate KSz, and the analysis end boost rate KSj respectively;

[0060] The fitting deviation change value KTP during the analysis period is calculated using the formula KTP = |KSj-KSz|-|KSz-KSk|;

[0061] Then, the fitting deviation change value ZTP and the fitting deviation change value KTP during the analysis period are substituted into the formula ZB=a1×ZTP+a2×KTP to calculate the fitting pressure change value ZB during the analysis period, where a1 and a2 are weight coefficients, a1+a2=1, a1 is 0.34, and a2 is 0.66. The values ​​of a1 and a2 represent the degree of influence of the fitting deviation change value ZTP and the fitting deviation change value KTP during the analysis period on the fitting pressure change value ZB during the analysis period, respectively.

[0062] Step 3: Based on the fitting pressure change value ZB during the analysis period, the correction evaluation value ZPJ is calculated and then compared with the corresponding threshold value to obtain a signal indicating whether the fitting correction degree is large or small;

[0063] In some embodiments, when the bonding pressure change value ZB of the analysis period is obtained, the current time point and the duration of the pressure boosting phase in the bonding process are obtained, and the difference between the duration of the pressure boosting phase and the current time point is calculated to obtain the expected arrival time TDy;

[0064] By formula Calculate and obtain the corrected assessment value ZPJ;

[0065] Comparing the corrected evaluation value ZPJ with the corrected evaluation threshold;

[0066] If the correction evaluation value ZPJ is greater than or equal to the correction evaluation threshold, it means that there is a significant change trend in the bonding pressure from the beginning of the analysis period to the current detection, and the time to reach the pressure holding stage is short, which makes it difficult to correct the pressure of the bonding equipment. In other words, if the current bonding process is continued, the quality of mobile phone screen production will be seriously affected. Therefore, a large bonding correction degree signal is generated.

[0067] If the correction evaluation value ZPJ is less than the correction evaluation threshold, it means that there is a small change trend in the bonding pressure from the beginning of the analysis period to the current detected bonding pressure, and the time to reach the pressure holding stage is long. The bonding equipment can be corrected in time to complete the subsequent bonding work of the mobile phone screen. A small bonding correction degree signal is generated;

[0068] The technical solution of an embodiment of the present invention is as follows: real-time boost data is obtained during the bonding process; based on the boost data, the bonding process of the multi-layer combination mobile phone screen is analyzed to obtain the bonding pressure change value during the analysis period; based on the bonding pressure change value ZB during the analysis period, a correction evaluation value ZPJ is calculated, and then compared with the corresponding threshold value to obtain a large or small bonding correction degree signal; the present invention determines whether the real-time bonding pressure of the multi-layer combination mobile phone screen meets the standard requirements during the bonding process, especially in the boost stage. Under the premise that it does not meet the requirements, it determines whether the bonding process should be corrected according to the bonding pressure change trend and the bonding working time, thereby ensuring the stability and pass rate of the multi-layer combination mobile phone screen in the subsequent preparation process.

[0069] Example 2

[0070] See also Figure 2 As shown, the present invention is a multi-layer combined mobile phone screen and a preparation process, which also includes the following steps:

[0071] Step 4: Based on the large or small signal of the degree of lamination correction, the lamination device generates corresponding instructions;

[0072] In some embodiments, when a large lamination correction degree signal is obtained, the lamination device generates a pause instruction, restores the lamination device to an initial state, and resumes the lamination process. If a large lamination correction degree signal is still generated, the lamination device is repaired.

[0073] When a small signal of the degree of lamination correction is obtained, the lamination device generates a correction instruction and adjusts the lamination pressure;

[0074] Step 5: Based on the correction instruction, obtain the current pressure control rate and control the bonding pressure of the bonding equipment;

[0075] In some embodiments, when a correction instruction is received, a real-time boost pressure value and a holding pressure value are obtained, and a difference between the real-time boost pressure value and the holding pressure value is calculated to obtain a pressure control difference ZFt;

[0076] Substitute the pressure control difference ZFt and the expected arrival time TDy into the formula Calculate the current pressure control rate KTf, where A is the error factor;

[0077] Specifically, the error factor A is calculated by comparing the fitting pressure change value ZB with the fitting pressure change threshold, that is, by comparing the correction evaluation value ZPJ with the correction evaluation threshold.

[0078] When the current pressure control rate KTf is obtained, it is fed back to the bonding equipment, and the bonding pressure is controlled according to the current pressure control rate KTf, thereby ensuring that the bonding equipment accurately completes the multi-layer combined mobile phone screen bonding work within the specified time of the process;

[0079] The technical solution of the embodiment of the present invention: based on the large or small signal of the degree of bonding correction, the bonding device generates corresponding instructions; based on the correction instruction, the current pressure control rate is obtained to control the bonding pressure of the bonding device; the present invention accurately generates corresponding instructions according to the real-time bonding process, thereby ensuring the quality of the preparation of the multi-layer combination mobile phone screen, and within a reasonable correction range, by combining the current bonding pressure error and the actual bonding situation, accurately outputting the bonding pressure control parameters, thereby ensuring that the bonding equipment accurately completes the multi-layer combination mobile phone screen bonding work within the specified time of the process.

[0080] The above formulas are all dimensionless and numerical calculations. The formulas are obtained by collecting a large amount of data and performing software simulation to obtain the most recent real situation. The preset parameters in the formulas are set by technicians in this field according to actual conditions.

[0081] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A process for preparing a multi-layer combined mobile phone screen, comprising the following steps: The mobile phone screen material layer is placed in the bonding equipment to complete the bonding molding process, and the bonded and molded material is cut to obtain a multi-layer combined mobile phone screen, which is characterized in that the bonding molding process specifically includes the following steps: S1, obtaining real-time boost data during the bonding process, and the real-time boost data includes a real-time boost value; S2, based on the boost data, analyzing the bonding process of the multi-layer combined mobile phone screen to obtain the bonding pressure change value during the analysis period; S3, based on the bonding pressure change value during the analysis period, calculating the correction evaluation value, and then judging it with the corresponding threshold value to obtain a large or small signal of the bonding correction degree; S4, based on the large or small signal of the bonding correction degree, the bonding equipment generates a corresponding instruction; S5, based on the correction instruction, obtains the current pressure adjustment value. Control the rate to control the bonding pressure of the bonding equipment; wherein, obtain the real-time boost value, and compare the real-time boost value with the bonding pressure at the time corresponding to the preset bonding process; if the real-time boost value is greater than the bonding pressure at the time corresponding to the preset bonding process, it means that there is a large deviation between the pressure during the current bonding and the pressure of the standard process. If it is not within the process error range, it will affect the quality of the mobile phone screen assembly into a finished product, and then generate a bonding analysis signal; based on the bonding analysis signal, set the analysis period, obtain the real-time boost value at the beginning of the analysis period, the real-time boost value at the midpoint of the analysis period, and the real-time boost value at the end of the analysis period, and mark them as the analysis start boost rate KSk, the analysis middle boost rate KSz, and the analysis end boost rate KSj respectively; through the formula , calculate the fitting deviation change value KTP of the analysis period; then, based on the fitting analysis signal, set the analysis period, obtain the real-time boost rate at the beginning of the analysis period, the real-time boost rate at the midpoint of the analysis period, and the real-time boost rate at the end of the analysis period, and mark them as the analysis start boost value ZSk, the analysis middle boost value ZSz, and the analysis end boost value ZSj respectively; through the formula , calculate the fitting deviation change value ZTP during the analysis period; then substitute the fitting deviation change value ZTP during the analysis period and the fitting deviation change value KTP during the analysis period into the formula The fitting pressure change value ZB of the analysis period is calculated, wherein a1 and a2 are weight ratio coefficients, a1+a2=1, and the values ​​of a1 and a2 represent the influence of the fitting deviation change value ZTP and the fitting deviation change value KTP of the analysis period on the fitting pressure change value ZB of the analysis period respectively; wherein, the acquisition process of the correction evaluation value is as follows: when the fitting pressure change value ZB of the analysis period is obtained, the current time point and the duration of the pressure boosting stage in the fitting process are obtained, and the difference between the duration of the pressure boosting stage and the current time point is calculated to obtain the expected arrival time TDy; through the formula , calculate and obtain the correction evaluation value ZPJ; if the correction evaluation value is greater than or equal to the correction evaluation threshold, a large signal of the degree of correction of the bonding is generated; when a large signal of the degree of correction of the bonding is obtained, the bonding equipment generates a pause instruction, restores the bonding equipment to the initial state, and continues to complete the bonding work. If a large signal of the degree of correction of the bonding is still generated, the bonding equipment is repaired.

2. The process for preparing a multi-layer combined mobile phone screen according to claim 1, characterized in that: When a small signal of the degree of fitting correction is obtained, the fitting device generates a correction instruction and regulates the fitting pressure.

3. The process for preparing a multi-layer combined mobile phone screen according to claim 1, characterized in that: When a correction instruction is received, the real-time boost value and the holding pressure value are obtained, and the difference between the real-time boost value and the holding pressure value is calculated to obtain the pressure control difference; the pressure control difference and the expected arrival time are calculated to obtain the current pressure control rate; The error factor is calculated by calculating the ratio of the upper correction evaluation value to the correction evaluation threshold.

4. A multi-layer combined mobile phone screen, characterized in that: The multi-layer combined mobile phone screen is prepared by the process described in any one of claims 1 to 3 above, and the multi-layer combined mobile phone screen includes: a covering flexible glass, a TSP film substrate with TSP on the upper surface, a polarizer, and an RGB board arranged in sequence.

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