Display module separation device and display module separation method

Abstract

The invention relates to the technical field of display screen separation, and discloses a separation device of a display module, which comprises a main body, a conveying part and an ion fan, the main body is provided with a preheating area and a separation port, a separation part is correspondingly arranged below the separation port, and the conveying part is arranged parallel to the plane where the separation port is located; according to the separation device of the display module, automatic separation of the display device is achieved by arranging the separation component, and static electricity generated in the separation process is eliminated by correspondingly arranging the ion fan at the separation opening; and the separation process of the display module is more efficient and reliable. The invention further discloses a separation method of the display module using the separation device of the display module.

Description

Technical Field

[0001] The present invention relates to the technical field of display screen separation, and particularly to a separation device and a separation method for a display module. Background Art

[0002] In the display screen industry, the deflection of light is achieved by attaching a polarizer to a glass substrate. During the process of attaching the polarizer to the glass substrate, there are usually many problems in the attachment. Therefore, it is often necessary to separate and rework the polarizer that has been attached to the display module. Currently, in the display screen industry, traditional polarizer repair usually uses manual labor to separate the polarizer from the display module. This separation method is inefficient and has a high defect rate. At the same time, for products with a size below 10 inches and products with a size of 10 inches and above, the attachment surface between the polarizer and the display module is large, and it is easy to cause secondary damage during the separation process, such as screen breakage, abnormal color of the liquid crystal in the display screen, etc.

[0003] Therefore, how to improve the separation efficiency and separation effect of the polarizer from the display module has become an important research topic in the industry. Summary of the Invention

[0004] The present invention aims to solve at least one problem in the background art. For this purpose, the present invention provides a separation device and a separation method for a display module. By using the separation device of the present invention, the separation efficiency of the display module can be improved.

[0005] A separation device for a display module according to an embodiment of the first aspect of the present invention includes a main body, a conveying part, and an ion blower. A preheating area and a separation opening are provided on the main body. A separation component is correspondingly provided below the separation opening. The conveying part is arranged parallel to the plane where the separation opening is located. The ion blower is arranged below the conveying part and its air outlet is arranged facing the separation opening.

[0006] It can be seen that the separation device for the display module of the present application realizes the automatic separation of the display device by setting a separation component, and eliminates the static electricity generated during the separation process by correspondingly arranging an ion blower at the separation opening, making the separation process of the display module more efficient and reliable.

[0007] According to another embodiment of the present invention, a transition part is provided between the separation opening and the conveying part. The transition part includes a first transition layer and a second transition layer. The first transition layer is provided on the main body.

[0008] According to another embodiment of the present invention, the first transition layer is a PTFE layer, and the second transition layer is a high-temperature tape layer.

[0009] According to another embodiment of the present invention, a step portion is formed by overlapping the first transition layer and the second transition layer.

[0010] According to another embodiment of the present invention, the conveying portion includes a plurality of conveying rods arranged in parallel, and a plurality of rollers are provided on the conveying rods.

[0011] A method for separating a display module according to an embodiment of the second aspect of the present invention includes: obtaining a display module to be separated, where the display module to be separated includes a display substrate layer and a polarizer layer arranged opposite to each other; performing preheating and pre-separation operations on the display module to be separated; separating the display module to be separated based on the display module to be separated that has completed preheating and pre-separation; and respectively outputting the separated display substrate layer and polarizer layer.

[0012] It can be seen that the method for separating a display module of the present application can achieve automatic separation of the display module, and also makes the separation process of the display module more efficient and reliable.

[0013] According to another embodiment of the present invention, the performing preheating and pre-separation operations on the display module to be separated specifically includes: heating the polarizer layer of the display module to be separated to 50 - 60 °C; and based on the preheated display module to be separated, using a glue blade to separate a corner where the display substrate layer and the polarizer layer are attached.

[0014] According to another embodiment of the present invention, the separating the display module to be separated based on the display module to be separated that has completed preheating and pre-separation specifically includes: feeding the display module to be separated that has completed preheating and pre-separation into a separation device for the display module; and separating the display substrate layer and the polarizer layer in the separation device for the display module.

[0015] According to another embodiment of the present invention, the respectively outputting the separated display substrate layer and polarizer layer specifically includes: outputting the separated display substrate layer in the horizontal direction, and outputting the separated polarizer layer in the vertical direction.

[0016] According to another embodiment of the present invention, between the separating the display module to be separated based on the display module to be separated that has completed preheating and pre-separation and the respectively outputting the separated display substrate layer and polarizer layer, it further includes: eliminating static electricity from the separated display module.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] An embodiment of the first aspect of the present invention discloses a separation device for a display module, which includes a main body, a conveying part, and an ion blower. A preheating area and a separation opening are provided on the main body. A separation component is correspondingly arranged below the separation opening. The conveying part is arranged parallel to the plane where the separation opening is located. The ion blower is arranged below the conveying part and its air outlet is arranged facing the separation opening. The separation device for the display module of the present application realizes the automatic separation of the display device by setting the separation component, and eliminates the static electricity generated during the separation process by correspondingly arranging the ion blower at the separation opening, making the separation process of the display module more efficient and reliable.

[0019] An embodiment of the second aspect of the present invention discloses a separation method for a display module, including: obtaining a display module to be separated, where the display module to be separated includes a display substrate layer and a polarizer layer arranged opposite to each other; performing preheating and pre-separation operations on the display module to be separated; separating the display module to be separated based on the display module to be separated that has completed preheating and pre-separation; and respectively outputting the separated display substrate layer and polarizer layer. The separation method for the display module of the present application can realize the automatic separation of the display module, and also makes the separation process of the display module more efficient and reliable.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are only used to illustrate the embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0022] Figure 1 is a schematic diagram of an embodiment of the separation device for the display module provided by the present application;

[0023] Figure 2 is a cross-sectional schematic diagram of an embodiment of the separation device for the display module provided by the present application;

[0024] Figure 3 is a flowchart of an embodiment of the separation method for the display module provided by the present application;

[0025] Figure 4 is a flowchart of another embodiment of the separation method for the display module provided by the present application;

[0026] Figure 5 is a flowchart of yet another embodiment of the separation method for the display module provided by the present application;

[0027] Figure 6 is a flowchart of still another embodiment of the separation method for the display module provided by the present application;

[0028] Figure 7 A flowchart of yet another embodiment of the separation method for the display module provided in this application; the meanings of the markings in the figure are as follows:

[0029] 100. Display module;

[0030] 110. Display substrate layer;

[0031] 120. Polarizer layer;

[0032] 200. Separation device;

[0033] 210. Main body; 211. Preheating area; 212. Separation opening;

[0034] 220. Conveyor section; 221. Conveyor rod; 222. Roller;

[0035] 230. Ion blower;

[0036] 240. Separation component;

[0037] 250. Transition section; 251. First transition layer; 252. Second transition layer; 253. Step section. Detailed implementation manners

[0038] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0039] In the description of the present invention, it should be understood that the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0040] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] To illustrate the separation device for the display module and the separation method for the display module provided in this application, the following will be elaborated in detail in combination with the accompanying drawings of the specification and the textual description of the embodiments.

[0042] The following is a reference to Figure 1 and Figure 2 A separating device 200 for a display module 100 according to an embodiment of the first aspect of the present invention will be described. The display module 100 includes a display substrate layer 110 and a polarizer layer 120 that are oppositely arranged. As Figure 1 and Figure 2 shown, the separating device 200 of the display module 100 includes a main body 210, a conveying part 220, and an ion blower 230. A preheating area 211 for heating the display module 100 and a separating opening 212 for separating the display module 100 are provided on the main body 210. Further, a separating component 240 for performing the separating operation is correspondingly provided below the separating opening 212. The conveying part 220 is arranged parallel to the plane where the separating opening 212 is located and is used for conveying the display substrate layer 110 separated from the polarizer layer 120 out for subsequent operations. The ion blower 230 is arranged below the conveying part 220 and its air outlet is arranged facing the separating opening 212, and is used for eliminating the static electricity generated during the separation process of the display substrate layer 110 and the polarizer layer 120. It can be seen that the separating device 200 of the display module 100 realizes the automatic separation of the display device by setting the separating component 240, and eliminates the static electricity generated during the separation process by correspondingly arranging the ion blower 230 at the separating opening 212, making the separation process of the display module 100 more efficient and reliable.

[0043] It should be noted that the display substrate layer 110 includes the display module 100 except for the polarizer layer 120 and is an integration of multiple components.

[0044] It should be noted that the main body 210 of the separating device 200 can include a relatively large separating area, so it can be applicable to separating display modules 100 with larger sizes.

[0045] According to an embodiment of the present invention, as Figure 1 and Figure 2 shown, a transition part 250 is provided between the separating opening 212 and the conveying part 220, and is used for enabling the separated display substrate layer 110 to smoothly reach the conveying part 220. Specifically, the transition part 250 includes a first transition layer 251 and a second transition layer 252. The first transition layer 251 is provided on the main body 210, and the areas of the first transition layer 251 and the second transition layer 252 are different, so that the separated display substrate layer 110 passes through the first transition layer 251 and the second transition layer 252 in sequence, and can thus smoothly reach the conveying part 220.

[0046] According to an embodiment of the present invention, as Figure 1 and Figure 2As shown, the first transition layer 251 is a polytetrafluoroethylene (PTFE) layer. Polytetrafluoroethylene has the characteristics of high temperature resistance, and its friction coefficient is extremely low. Therefore, it will not damage the separated display substrate layer 110. Further, the second transition layer 252 is a high-temperature tape layer, and the high-temperature tape layer has the characteristic of being used in a high-temperature working environment, and its temperature resistance performance is usually between 120 degrees and 260 degrees. Specifically, the high-temperature tape can be one or a combination of KAPTON high-temperature tape, Teflon high-temperature tape, high-temperature masking tape, PET green high-temperature tape, or high-temperature double-sided tape.

[0047] According to an embodiment of the present invention, as Figure 1 and Figure 2 shown, a stepped portion 253 is formed by overlapping the first transition layer 251 and the second transition layer 252. It can be understood that by setting the areas of the first transition layer 251 and the second transition layer 252 to be different, and then forming the stepped portion 253 on the plane, the separated display substrate layer 110 can pass through the first transition layer 251 and the second transition layer 252 in sequence, and then can smoothly reach the conveying portion 220.

[0048] According to an embodiment of the present invention, as Figure 1 and Figure 2 shown, the conveying portion 220 includes a plurality of parallel conveying rods 221, and a plurality of rollers 222 are provided on the conveying rods 221. It can be understood that by setting the conveying portion 220 as a plurality of parallel conveying rods 221 with rollers 222, the separated display substrate layer 110 can be smoothly output to the working station of the next process, and the contact area between the separated display substrate layer 110 and the conveying rods 221 can be reduced, and the probability of contact damage can be decreased.

[0049] According to an embodiment of the present invention, as Figure 1 and Figure 2 shown, the distance between any two adjacent conveying rods 221 is the same, and the distance between any two adjacent conveying rods 221 is between 3 - 10 cm.

[0050] According to an embodiment of the present invention, as Figure 2 shown, the separating member 240 is a guide roller. It can be understood that when the polarizer layer 120 of the display module 100 passes through the separating member 240, at this time, the guide roller can rotate to drive the separation of the polarizer layer 120 and the display substrate layer 110.

[0051] According to an embodiment of the present invention, as Figure 1 and Figure 2As shown, the length of the separation opening 212 is 5 - 50 cm. It can be understood that by setting the length of the separation opening 212 within the range of 5 - 50 cm, the separation opening 212 can be adapted to display modules 100 of different sizes, so that the separation operations for both small - sized and large - sized display modules 100 can be taken into account.

[0052] According to an embodiment of the present invention, the separation device 200 of the display module 100 further includes a temperature detector (not shown in the figure). The temperature detector is used to detect the temperature of the pre - heating area 211. When heating is performed in the pre - heating area 211, the temperature detector obtains the temperature of the pre - heating area 211 in real time. When the temperature of the pre - heating area 211 reaches a predetermined temperature, the temperature detector outputs a corresponding temperature signal.

[0053] According to an embodiment of the present invention, the separation device 200 of the display module 100 further includes a controller (not shown in the figure), which is used to control the heating operation of the pre - heating area 211 and the separation operation of the separation component 240.

[0054] Next, refer to Figures 3 - 7 to describe a separation method for a display module according to an embodiment of the second aspect of the present invention. As Figure 3 shown, it specifically includes the following steps:

[0055] Step S100: Obtain a display module to be separated. The display module to be separated includes a display substrate layer and a polarizer layer arranged opposite to each other;

[0056] Specifically, the display substrate layer is a display module excluding the polarizer layer and is an integration of multiple components. Separating the display module means separating the polarizer layer from the display module.

[0057] Step S200: Perform pre - heating and pre - separation operations on the display module to be separated;

[0058] Specifically, the purpose of pre - heating is to smoothly perform pre - separation on the display module. Pre - separation means separating one corner of the polarizer layer from the display substrate layer. That is to say, pre - separation is to tear one corner of the polarizer layer, which is convenient for the subsequent overall separation process.

[0059] Step S300: Based on the display module to be separated that has completed pre - heating and pre - separation, separate the display module to be separated;

[0060] Specifically, completely separate the pre - separated polarizer layer from the display substrate layer.

[0061] Step S400: Output the separated display substrate layer and polarizer layer respectively.

[0062] Specifically, the pre-separated polarizer layer and the display substrate layer are output from different locations respectively.

[0063] It can be seen that the separation method of the display module of the present application first performs pre-heating and pre-separation, and then performs complete separation. This method can realize the automatic separation of the display module on an automatic separation device, making the separation process of the display module more efficient and reliable.

[0064] According to an embodiment of the present invention, as Figure 4 shown, step S200: Perform pre-heating and pre-separation operations on the display module to be separated, specifically including the steps:

[0065] Step S210: Heat the polarizer layer of the display module to be separated to 50-60 °C;

[0066] Specifically, at this time, the polarizer layer needs to be heated to 55±5 °C to facilitate the smooth progress of subsequent pre-separation processes.

[0067] Step S220: Based on the pre-heated display module to be separated, use a glue blade to separate one corner where the display substrate layer and the polarizer layer are adhered.

[0068] Specifically, on the pre-heated display module, perform preliminary separation of the display substrate layer and the polarizer layer, and use a glue blade to separate one corner where the display substrate layer and the polarizer layer are adhered to facilitate the smooth progress of subsequent complete separation.

[0069] According to an embodiment of the present invention, as Figure 5 shown, step S300: Based on the display module to be separated that has completed pre-heating and pre-separation, separate the display module to be separated, specifically including the steps:

[0070] Step S310: Send the display module to be separated that has completed pre-heating and pre-separation into the separation device of the display module;

[0071] Step S320: In the separation device of the display module, separate the display substrate layer and the polarizer layer.

[0072] Specifically, the separation device of the display module includes a main body, a conveying part, and an ion blower. The main body is provided with a pre-heating area for heating the display module, and a separation opening for separating the display module. A separation component for performing separation operations is correspondingly arranged below the separation opening. The conveying part is arranged parallel to the plane where the separation opening is located, and is used to convey the display substrate layer separated from the polarizer layer out for subsequent operations. The ion blower is arranged below the conveying part and its air outlet is arranged facing the separation opening, and is used to eliminate the static electricity generated during the separation process of the display substrate layer and the polarizer layer.

[0073] According to an embodiment of the present invention, as Figure 6 shown, step S400: Output the separated display substrate layer and polarizer layer respectively, which specifically includes the steps of:

[0074] Step S410: Output the separated display substrate layer in the horizontal direction and output the separated polarizer layer in the vertical direction.

[0075] According to an embodiment of the present invention, as Figure 7 shown, between step S300: Separating the display module to be separated based on the display module to be separated that has completed preheating and pre-separation, and step S400: Outputting the separated display substrate layer and polarizer layer respectively, further includes:

[0076] Step S301: Eliminate static electricity from the separated display module.

[0077] Specifically, by setting the ion blower below the conveying part and its air outlet facing the separation port, static electricity generated during the separation process of the display substrate layer and the polarizer layer is eliminated.

[0078] The above separation device and separation method of the display module provided by this application are preferred embodiments, and should not be construed as limiting the scope of the rights protected by this application. Those skilled in the art should know that without departing from the concept of this application, various improvements or substitutions can be made, and all improvements or substitutions should be within the scope of the rights protected by this application, that is, the scope of the rights protected by this application should be subject to the claims.

[0079] In the case of no conflict, the above embodiments and the features in the embodiments in this article can be combined with each other.

Claims

1. A separating device for a display module, characterized in that, it includes a main body, a conveying part and an ion blower. A preheating area and a separation opening are arranged on the main body. A separation component is correspondingly arranged below the separation opening. The conveying part is arranged parallel to the plane where the separation opening is located. The ion blower is arranged below the conveying part and its air outlet is arranged facing the separation opening.

2. The separating device for a display module according to claim 1, characterized in that, a transition part is arranged between the separation opening and the conveying part. The transition part includes a first transition layer and a second transition layer. The first transition layer is arranged on the main body.

3. The separating device for a display module according to claim 2, characterized in that, the first transition layer is a PTFE layer, and the second transition layer is a high-temperature tape layer.

4. The separating device for a display module according to claim 2, characterized in that, a step part is formed by overlapping between the first transition layer and the second transition layer.

5. The separating device for a display module according to claim 1, characterized in that, the conveying part includes a plurality of conveying rods arranged in parallel. A plurality of rollers are arranged on the conveying rods.

6. A separating method for a display module, characterized in that, it includes: obtaining a display module to be separated, where the display module to be separated includes a display substrate layer and a polarizer layer arranged oppositely; performing preheating and pre-separation operations on the display module to be separated; based on the display module to be separated that has completed preheating and pre-separation, separating the display module to be separated; outputting the separated display substrate layer and polarizer layer respectively.

7. The separating method for a display module according to claim 6, characterized in that, the performing preheating and pre-separation operations on the display module to be separated specifically includes: heating the polarizer layer of the display module to be separated to 50 - 60 °C; based on the display module to be separated after preheating, using a glue blade to separate one corner where the display substrate layer and the polarizer layer are adhered.

8. The separating method for a display module according to claim 6, characterized in that, the separating the display module to be separated based on the display module to be separated that has completed preheating and pre-separation specifically includes: sending the display module to be separated that has completed preheating and pre-separation into the separating device for the display module; in the separating device for the display module, separating the display substrate layer and the polarizer layer.

9. The separating method for a display module according to claim 6, characterized in that, the outputting the separated display substrate layer and polarizer layer respectively specifically includes: outputting the separated display substrate layer in the horizontal direction and outputting the separated polarizer layer in the vertical direction.

10. The separating method for a display module according to claim 6, characterized in that, between the separating the display module to be separated based on the display module to be separated that has completed preheating and pre-separation and the outputting the separated display substrate layer and polarizer layer respectively, it further includes: performing static elimination on the separated display module.

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