CN116878739A

CN116878739A - Display panel sealing performance detection method and system and electronic equipment

Info

Publication number: CN116878739A
Application number: CN202310887354.1A
Authority: CN
Inventors: 梁吉安
Original assignee: LG Display Optoelectronics Technology China Co Ltd
Current assignee: LG Display Optoelectronics Technology China Co Ltd
Priority date: 2023-07-18
Filing date: 2023-07-18
Publication date: 2023-10-13

Abstract

The invention discloses a method and a system for detecting sealing performance of a display panel and electronic equipment, wherein the method comprises the following steps: setting a panel to be detected and a preset detection program; and executing at least two of the following detection on the panel to be detected based on the preset detection program: appearance detection, adhesive force detection, seal frame reliability detection and adhesive property detection; obtaining detection results and sealing requirements of all detection, and judging whether the detection results meet the corresponding sealing requirements; if the detection result of any one of the detection does not meet the corresponding sealing requirement, judging that the panel to be detected is abnormal in sealing. By establishing various detection types, the performance of the face mask is detected, the sealing defect of the face mask is rapidly and normally checked, the detection effect is good, and the outflow of the face mask with poor sealing is avoided.

Description

Display panel sealing performance detection method and system and electronic equipment

Technical Field

The present invention relates to the field of display panel technologies, and in particular, to a method and a system for detecting sealing performance of a display panel, and an electronic device.

Background

In the case of processing a display panel, a display layer and a glass substrate are generally encapsulated by a face seal method. As shown in fig. 1, the packaged display panel includes: a glass substrate 1', a display layer 2', a photosensitive layer 3', a cathode layer 4', and a sealing layer 5'. The sealing surface adhesive is coated on the glass substrate 1 'around the display layer 2', and the sealing layer 5 'and the glass substrate 1' are bonded together to form a closed space. If the packaging surface adhesive has bonding defects, the bonding quality can be affected, and the waterproof and dampproof effects of the panel are further affected.

In the prior art, the bubble defect detection is generally performed on the packaging surface adhesive by adopting manual observation or an optical detection means. The prior art has the following defects: the factors influencing the adhesive performance of the face-to-face adhesive are various, the existing detection means are single, the adhesive performance cannot be comprehensively evaluated, the sealing defect of the panel cannot be accurately detected, and the detection effect is influenced.

Disclosure of Invention

The invention aims at: the method, the system and the electronic equipment for detecting the sealing performance of the display panel are used for detecting the performance of the face mask based on various detection types, rapidly and regularly inspecting the sealing defect of the panel, are good in detection effect, and avoid the outflow of the panel with poor sealing.

In order to achieve the above purpose, the invention adopts the following technical scheme:

there is provided a display panel sealing property detection method including a glass substrate, a display layer, a photosensitive layer, a cathode layer, and a sealing layer, the method including: setting a panel to be detected and a preset detection program; and executing at least two of the following detection on the panel to be detected based on the preset detection program: appearance detection, adhesive force detection, seal frame reliability detection and adhesive property detection; obtaining detection results and sealing requirements of all detection, and judging whether the detection results meet the corresponding sealing requirements; if the detection result of any one of the detection does not meet the corresponding sealing requirement, judging that the panel to be detected is abnormal in sealing.

As a preferred embodiment of the display panel sealing performance detecting method, performing the sealing frame reliability detection includes: measuring the outer edge interval size between any two adjacent layers in the panel to be detected; determining an effective frame size according to the outer edge interval size; setting a preset effective threshold value based on the sealing requirement of the reliability detection of the sealing frame; and determining a first reliability detection result according to the effective frame size and the preset effective threshold.

As a preferred embodiment of the display panel sealing performance detecting method, performing the sealing frame reliability detection further includes: measuring the size of bubbles existing on the bonding surface between the glass substrate and each layer except the glass substrate in the panel to be detected; determining a reliable bonding size according to the outer edge spacing size and the bubble size; setting a preset reliability threshold based on the sealing requirement of the reliability detection of the sealing frame; and determining a second reliability detection result according to the reliable bonding size and the preset reliability threshold.

As a preferred embodiment of the display panel sealing performance detecting method, performing the adhesion detection includes: an unsealing area is arranged at the bonding edge of the sealing layer and the glass substrate; setting a preset unsealing angle; applying a force to the unsealing area based on the preset unsealing angle so as to separate the sealing layer from the glass substrate; acquiring a separation acting force when the sealing layer is separated from the glass substrate; and determining an adhesion detection result according to the separation acting force and a preset adhesion threshold value.

As a preferred embodiment of the display panel sealing performance detecting method, performing the adhesive performance detection includes: performing unsealing treatment on the panel to be detected; acquiring adhesive form parameters of the surface of the glass substrate after unsealing; determining an adhesive property detection result according to the adhesive morphological parameters; wherein the adhesive morphology parameters include at least one of: adhesive attachment morphology, adhesive tear morphology, or adhesive tear amplitude.

As a preferred embodiment of the display panel sealing performance detecting method, performing the appearance detection includes: fixedly mounting detection equipment at a preset position on one side of the sealing layer, which is away from the glass substrate; acquiring image data of the panel to be detected by adopting the detection equipment; judging whether bubbles exist according to the image data, and recording the positions of the bubbles and the sizes of the bubbles.

As a preferred embodiment of the method for detecting sealing performance of a display panel, when a sealing abnormality occurs in the panel to be detected, the method includes: acquiring parameters of sealing equipment of the panel to be detected; judging whether equipment parameter change occurs according to the sealing equipment parameters; if the equipment parameters are changed, restoring the sealing equipment parameters; preparing a reinspection panel by adopting recovered sealing equipment; and performing sealing performance detection on the reinspection panel based on the preset detection program.

As a preferred embodiment of the method for detecting sealing performance of a display panel, when a sealing abnormality occurs in the panel to be detected, the method further includes: acquiring a sealing material of the panel to be detected; judging whether raw material change occurs according to the sealing material; if the material is changed, the seal detection is stopped.

There is provided a display panel sealing performance detection system including a glass substrate, a display layer, a photosensitive layer, a cathode layer, and a sealing layer, the system including: the configuration module is used for acquiring a panel to be detected and a preset detection program; the execution module is used for executing at least two of the following detection on the panel to be detected based on the preset detection program: appearance detection, adhesive force detection, seal frame reliability detection and adhesive property detection; the analysis module is used for acquiring detection results and sealing requirements of all the detection and judging whether the detection results meet the corresponding sealing requirements or not; if the detection result of any one of the detection does not meet the corresponding sealing requirement, judging that the panel to be detected is abnormal in sealing.

There is provided an electronic device including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores a computer program executable by the at least one processor, the computer program being executable by the at least one processor to enable the at least one processor to perform the display panel sealing performance detection method described above.

The beneficial effects of the invention are as follows: through setting up multiple detection types such as outward appearance detection, adhesive force detection, sealed frame reliability detection and adhesive property detection, detect face gluing sealing performance based on the testing result and the sealing requirement of each item detection, inspect panel sealing defect fast, normalized, the detection effect is good, effectively verifies panel sealing quality, avoids sealed bad panel to flow out.

Drawings

The invention is described in further detail below with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of a conventional display panel.

Fig. 2 is a flowchart of a method for detecting sealing performance of a display panel according to a first embodiment of the present invention.

Fig. 3 is a flowchart of a method for detecting sealing performance of a display panel according to a second embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a display panel according to a second embodiment of the present invention.

Fig. 5 is a flowchart of another method for detecting sealing performance of a display panel according to a second embodiment of the present invention.

Fig. 6 is a flowchart of a method for detecting sealing performance of a display panel according to a third embodiment of the present invention.

Fig. 7 is a schematic structural diagram of an adhesion detecting device according to a third embodiment of the present invention.

Fig. 8 is a flowchart of a method for detecting sealing performance of a display panel according to a fourth embodiment of the present invention.

Fig. 9 is a top view of a display panel according to a fourth embodiment of the invention.

Fig. 10 is a schematic structural view of an adhesive form according to a fourth embodiment of the present invention.

Fig. 11 is a schematic structural view of another adhesive form according to a fourth embodiment of the present invention.

Fig. 12 is a flowchart of a method for detecting sealing performance of a display panel according to a fifth embodiment of the present invention.

Fig. 13 is a flowchart of a method for detecting sealing performance of a display panel according to a sixth embodiment of the present invention.

Fig. 14 is a flowchart of a method for detecting sealing performance of a display panel according to a seventh embodiment of the present invention.

Fig. 15 is a schematic structural diagram of a system for detecting sealing performance of a display panel according to an embodiment of the present invention.

Fig. 16 is a schematic structural diagram of an electronic device according to a method for detecting sealing performance of a display panel according to an embodiment of the present invention.

In fig. 1 and 4:

1', a glass substrate; 2', a display layer; 3', a photosensitive layer; 4', a cathode layer; 5', a sealing layer; x, reliable bonding size; A. a first outer edge spacing dimension; B. a second outer edge spacing dimension; mu, bubble size; y, effective frame size; C. a third outer edge spacing dimension.

In fig. 7:

1', a glass substrate; 5', a sealing layer; a. the side length of the unsealing area.

In fig. 11:

1', a glass substrate; d1, a first tearing amplitude; d2: a second tear amplitude.

Fig. 12:

1', a glass substrate; 2', a display layer; 3', a photosensitive layer; 4', a cathode layer; 5', a sealing layer; 01. and a detection device.

In fig. 15:

100. a configuration module; 200. an execution module; 300. and an analysis module.

In fig. 16:

10. an electronic device; 11. a processor; 12. a ROM; 13. a RAM; 14. a bus; 15. an I/O interface; 16. an input unit; 17. an output unit; 18. a storage unit; 19. and a communication unit.

Detailed Description

Advantages and features of the present invention and methods of accomplishing the same may become apparent with reference to the following detailed description of embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various different forms, which are provided only for the purpose of completing the disclosure of the present invention and fully understanding the scope of the present invention by those skilled in the art, and the present invention is limited only by the scope of the claims. Like reference numerals denote like constituent elements throughout the specification.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, in the present embodiment, the display panel includes a glass substrate 1', a display layer 2', a photosensitive layer 3', a cathode layer 4', and a sealing layer 5'. The method for detecting the sealing performance of the display panel is suitable for application scenes for nondestructive detection of the bonding performance among layers of the display panel.

As shown in fig. 2, the method for detecting the sealing performance of the display panel specifically includes the following steps:

s1: setting a panel to be detected and a preset detection program.

In this embodiment, the panel to be detected may be a panel prepared by any sealing device (for example, a laminator).

The preset test program comprises a plurality of test types arranged in sequence, and a test flow and a sealing requirement of each test type, wherein the sealing requirement comprises but is not limited to a threshold parameter.

S2: based on a preset detection program, at least two of the following detections are performed on the panel to be detected: appearance detection, adhesion detection, seal frame reliability detection and adhesion performance detection.

The appearance detection can be used for detecting whether bubbles, indentations and other appearance defects exist on the surface of the panel to be detected. In this embodiment, the appearance detection is mainly used for checking the poor appearance of the sealing layer 5'. The less the appearance failure morphology, the better the sealing performance.

The adhesion test may be used to determine the force required to unseal the panel to be tested. In this embodiment, a tension meter and a push-pull meter can be used to measure the force required for tearing the sealing layer 5 'and the glass substrate 1', i.e. the larger the adhesion force, the better the sealing performance of the panel.

The seal border reliability detection can be used to determine the reliability of the bonded border of the panel to be detected. In this embodiment, the larger the size of the bonding frame, the larger the width of the bonding paste, and the higher the panel sealing reliability.

The adhesion performance test can be used to determine the adhesion performance of the sealing layer 5'. In the embodiment of the invention, the adhesive property detection can be evaluated by the form of the glue after the panel to be detected is unsealed.

In the embodiment of the invention, the execution sequence of each detection can be adjusted according to actual needs, and the detection is not limited.

S3: and obtaining detection results and sealing requirements of all the detection, and judging whether the detection results meet the corresponding sealing requirements.

Among them, the detection results of the appearance detection include, but are not limited to: detecting the bubble size, the bubble number, the indentation size and the indentation number of the surface of the panel; sealing requirements for appearance detection include, but are not limited to: an upper bubble size threshold, an upper bubble number threshold, an upper indentation size threshold, and an upper indentation number threshold. If any one of the following is true: and if the bubble size is larger than the bubble size upper limit threshold, or the bubble number is larger than the bubble number upper limit threshold, or the indentation size is larger than the indentation size upper limit threshold, or the indentation number is larger than the indentation number upper limit threshold, judging that the appearance detection result does not meet the sealing requirement.

The detection results of the adhesion detection include, but are not limited to: tearing the adhesion between the sealing layer 5 'and the glass substrate 1'; sealing requirements for adhesion detection include, but are not limited to: lower adhesion threshold. And if the adhesive force is smaller than the lower adhesive force threshold, judging that the adhesive force detection result does not meet the sealing requirement.

The detection results of the seal frame reliability detection include, but are not limited to: effective bonding dimensions and reliable bonding dimensions; sealing requirements for seal bezel reliability detection include, but are not limited to: an effective bond size lower threshold and a reliable bond size lower threshold. If the effective bonding size is smaller than the effective bonding size lower limit threshold, or the reliable bonding size is smaller than the reliable bonding size lower limit threshold, judging that the reliability detection result of the sealing frame does not meet the sealing requirement.

The detection results of the adhesion performance detection include, but are not limited to: an adhesive morphology; sealing requirements for adhesion performance testing include, but are not limited to: morphological requirements. If the adhesive form does not meet the form requirement, judging that the bonding performance detection result does not meet the sealing requirement.

If the detection result of any one of the detection does not meet the corresponding sealing requirement, executing step S301; if the detection results of the detection meet the corresponding sealing requirements, step S302 is executed.

S301: and judging that the panel to be detected is abnormal in sealing.

S302: and judging that the panel to be detected is not abnormal in sealing.

Specifically, a panel prepared by a specific sealing device (e.g., a laminator) is sampled based on the detection requirements, and sealing performance detection is initiated. Presetting at least two of the following detections in a preset detection program: appearance detection, adhesive force detection, seal frame reliability detection and adhesive property detection, and sealing measurement is carried out on the panel to be detected based on detection flows and threshold parameters of all detection types. And sealing and measuring the panel to be detected based on the detection flow of each detection type. Taking appearance detection, adhesion detection, seal frame reliability detection and adhesion performance detection as examples, obtaining detection results and sealing requirements corresponding to each item in the appearance detection, the adhesion detection, the seal frame reliability detection and the adhesion performance detection, and if any one detection result does not meet the corresponding sealing requirements, for example, the detection result exceeds the range limited by the threshold parameter, judging that the panel to be detected is sealed abnormally. If any detection result judges that the sealing abnormality occurs, suspending the operation of the current sealing equipment, and analyzing the cause of the sealing abnormality; if all the detection results meet the corresponding sealing requirements, judging that sealing abnormality does not occur, and starting the detection of the sealing performance of other panels. Through setting up multiple detection types such as outward appearance detection, adhesive force detection, sealed frame reliability detection and adhesive property detection, detect face gluing sealing performance, inspect panel sealing defect fast, normalized, detection effect is good, effectively verifies panel sealing quality, avoids sealed bad panel outflow.

In one embodiment, as shown in fig. 3, performing seal border reliability detection includes:

s201: the outer edge spacing dimension between any two adjacent layers in the panel to be inspected is measured.

In this embodiment the outer edges comprise the edges of the display layer 2', the photosensitive layer 3', the cathode layer 4' and the sealing layer 5 facing away from the centre of the panel in the direction of the edges of the panel.

S202: the effective bezel size is determined based on the outer edge spacing size.

Wherein the effective frame size is used to represent the effective size of the applied adhesive. Typically, the adhesive is uniformly applied around the periphery of the display layer 2', and the effective bezel size may be the size of the space between the outer edge of the display layer 2' and the outer edge of the sealing layer 5.

For example, referring to fig. 4 in combination, if the effective frame size Y is defined, a first outer edge interval size a is defined between the outer edge of the sealing layer 5 'and the outer edge of the cathode layer 4', a second outer edge interval size B is defined between the outer edge of the cathode layer 4 'and the outer edge of the photosensitive layer 3', and a third outer edge interval size C is defined between the outer edge of the photosensitive layer 3 'and the outer edge of the display layer 2', the effective frame size Y may be expressed as a sum of the first outer edge interval size a, the second outer edge interval size B and the third outer edge size C, i.e., the effective frame size y=a+b+c.

S203: sealing requirements based on seal frame reliability detection set a preset effective threshold.

In this embodiment, the preset valid threshold may include a plurality of values.

For example, taking a panel to be detected having four frames as an example, a corresponding preset valid threshold may be set in each frame, and specific numerical values thereof are not limited.

S204: and determining a first reliability detection result according to the effective frame size and a preset effective threshold value.

Specifically, taking the example that the panel to be detected has four frames, if the effective frame size of any frame is smaller than the corresponding preset effective threshold value, judging that the reliability verification of the sealing frame is not passed; and if the effective frame sizes of all the frames are larger than or equal to the corresponding preset effective threshold values, judging that the reliability verification of the sealing frames is passed. And determining the size of the frame around the display area, primarily judging whether the adhesive coating area meets the requirement, and timely checking the unqualified defect of the frame size to avoid the sealing defect caused by the unqualified frame size.

In this embodiment, as shown in fig. 5, the method for detecting sealing performance of a display panel further includes:

s205: the size of bubbles present at the bonding surface between the glass substrate and each layer of the panel to be inspected other than the glass substrate was measured.

With continued reference to fig. 4, the bonding surface includes: a first bonding surface between the sealing layer 5 'and the glass substrate 1', a second bonding surface between the cathode layer 4 'and the glass substrate 1', a third bonding surface between the photosensitive layer 3 'and the glass substrate 1', and a fourth bonding surface between the display layer 2 'and the glass substrate 1'. Due to the lamination process, air bubbles may exist on the first to fourth bonding surfaces. The size of the air bubbles present at the bonding surface is referred to as the air bubble size, which may be the length of the air bubbles present at a particular bonding surface in a direction along the outer edge toward the center point of the panel.

S206: and determining the reliable bonding size according to the outer edge interval size and the bubble size.

The reliable bonding size is the actual size of the panel frame area bonded by the adhesive.

In the present embodiment, bonding surfaces actually affecting the reliable bonding size are mainly the first bonding surface and the second bonding surface, and bubbles actually affecting the reliable bonding size are generally bubbles located on the first bonding surface and the second bonding surface.

With continued reference to fig. 4, if the reliable bonding dimension is defined as X, a first outer edge interval dimension a is provided between the outer edge of the sealing layer 5 'and the outer edge of the cathode layer 4', a second outer edge interval dimension B is provided between the outer edge of the cathode layer 4 'and the outer edge of the photosensitive layer 3', and the bubble dimensions of all bubbles present on the first bonding surface and the second bonding surface are μ, the reliable bonding dimension X is calculated using the following formula: x=a+b- μ.

S207: and setting a preset reliability threshold based on the sealing requirement of the reliability detection of the sealing frame.

And the preset value of the reliable threshold value is smaller than the preset value of the effective threshold value at the same frame.

S208: and determining a second reliability detection result according to the reliable bonding size and a preset reliability threshold value.

Specifically, taking the example that the panel to be detected is provided with four frames, if the reliable bonding size of any frame is smaller than the corresponding preset reliable threshold value, judging that the reliability verification of the sealing frame is not passed; and if the reliable bonding sizes of all the frames are larger than or equal to the corresponding preset reliable threshold values, judging that the reliability verification of the sealed frames is passed. Through setting up effective frame size and reliable bonding size two-stage survey, judge whether the adhesive coating frame accords with the requirement, effectively discern the frame reliability, avoid the frame bonding size to set up unreasonable sealing defect that leads to, be favorable to improving sealing detection result's reliability.

In one embodiment, as shown in fig. 6, performing the adhesion detection includes the steps of:

s601: an unsealing area is provided at the bonding edge of the sealing layer and the glass substrate.

Here, unsealing means an operation of tearing the sealing layer 5 'from the glass substrate 1'. The unsealing area represents an area for fixing the adhesion measuring device (for example, a tension meter) and performing a tearing operation.

Referring to fig. 7 in combination, a triangular area a of any corner of the panel to be detected may be set as the unsealing area. Typically, the unsealing area side length a is equal to 50 millimeters, i.e., the unsealing area is a triangular area of 50 millimeters by 50 millimeters.

S602: setting a preset unsealing angle.

The preset unsealing angle represents an included angle between a direction of acting force of the adhesive force measuring device (for example, a tension meter) and a plane of the panel to be detected when the panel to be detected is unsealed.

In one embodiment, the preset unsealing angle may be set to any angle value in the range of 45 ° to 60 °.

S603: and applying a force to the unsealing area based on the preset unsealing angle so as to separate the sealing layer from the glass substrate.

S604: and obtaining the separation force when the sealing layer is separated from the glass substrate.

The separation force is the minimum force applied when the sealing layer 5 'is torn from the glass substrate 1'.

S605: and determining an adhesion detection result according to the separation acting force and a preset adhesion threshold value.

Wherein the preset adhesion threshold is a minimum adhesion that ensures reliable adhesive sealing.

For example, the preset adhesion threshold may be set to 0.5kgf.

Specifically, as shown in fig. 7, the sealing layer 5 'and the glass substrate 1' are torn from any corner of the panel to be inspected to form an unsealing area; after the unsealing area is folded, an adhesion force measuring device (for example, a tension meter) is fixed in the unsealing area, the glass substrate 1 'is fixed, and an acting force is applied to pull the sealing layer 5' according to a preset unsealing angle until the acting force can tear the sealing layer 5 'and the glass substrate 1', and at the moment, the numerical value displayed by the adhesion force measuring device (for example, the tension meter) is the separating acting force. If the separation acting force is smaller than the preset adhesive force threshold value, judging that the adhesive force detection is not passed; and if the separation acting force is greater than or equal to the preset adhesive force threshold value, judging that the adhesive force detection is passed. And (3) verifying the adhesive property of the sealing layer by measuring the adhesive force between the sealing layer and the glass substrate, and checking the sealing defect caused by insufficient adhesive force of the sealing layer.

In one embodiment, as shown in fig. 8, performing the adhesion performance test includes:

s801: and executing unsealing treatment on the panel to be detected.

Here, unsealing means an operation of tearing the sealing layer 5 'from the glass substrate 1'. The technical scheme of unsealing is not limited in the application.

S802: and obtaining the adhesive form parameters of the surface of the unsealed glass substrate.

Wherein the adhesive morphology parameters include at least one of: adhesive attachment morphology, adhesive tear morphology, or adhesive tear amplitude.

S803: and determining an adhesion performance detection result according to the adhesive form parameters.

In this embodiment, an electron microscope may be used to read and record the adhesive morphology parameters of the glass substrate surface.

As shown in fig. 9, the adhesive adhering form shows an adhering form of the adhesive on the surface of the glass substrate 1' after the sealing layer 5' and the glass substrate 1' are torn apart. If the adhesive attachment thickness is low or the attachment amount is small, the adhesive property is not verified.

As shown in fig. 10, the adhesive tearing state indicates a state in which the adhesive breaks or is missing on the surface of the glass substrate 1' after the sealing layer 5' is torn from the glass substrate 1 '. If comb teeth are present in the torn form of the adhesive, the adhesive performance is not verified.

As shown in fig. 11, the adhesive tearing width indicates the residual width of the adhesive on the surface of the glass substrate 1' after the sealing layer 5' is torn from the glass substrate 1 '. For example, in the left and right frames of the panel, the measurement direction of the tearing amplitude is the first direction, and the first tearing amplitude along the first direction is d1; and the upper frame and the lower frame of the panel are respectively provided with a tearing amplitude, the measuring direction of the tearing amplitude is a second direction, and the second tearing amplitude of the second direction is d2. The tear amplitude threshold is defined as 0.7 mm, and if either one of the first tear amplitude d1 and the second tear amplitude d2 is greater than 0.7 mm, the adhesive property verification is not passed.

Referring to fig. 9 to 11 in combination, if the adhesive attachment pattern is uniform, comb teeth do not exist in the adhesive tearing pattern, and the tearing amplitude is smaller than the tearing amplitude threshold, the adhesive performance is verified. By acquiring the form of the torn adhesive, the adhesive bonding performance is measured, and the sealing defect caused by poor adhesive bonding performance is avoided.

In one embodiment, as shown in fig. 12, performing appearance detection includes: fixedly mounting detection equipment 01 at a preset position on one side of the sealing layer 5 'away from the glass substrate 1'; acquiring image data of a panel to be detected by adopting detection equipment 01; judging whether bubbles exist according to the image data, and recording the positions of the bubbles and the sizes of the bubbles.

Specifically, the detection device 01 may be an optical detection device for acquiring an optical image of a panel to be detected, for example an infrared image. Placing the panel to be detected on a detection table top, defining one side of the sealing layer 5 'away from the glass substrate 1' as the upper surface of the panel to be detected, wherein the detection equipment 01 can be fixedly installed at a position 15 cm away from the upper surface, and the upper and lower visual angles of the detection equipment meet the following conditions: greater than 0 deg. and less than or equal to 15 deg.. And acquiring appearance image data of the panel to be detected by adopting detection equipment, confirming whether bubbles exist in the image data by an image recognition technology, and recording the positions of the bubbles and the sizes of the bubbles. By arranging the optical detection equipment, the panel bubbles can be automatically identified, the low identification precision caused by artificial detection is avoided, and the appearance detection efficiency and the appearance detection accuracy are improved.

In one embodiment, as shown in fig. 13, when a sealing abnormality occurs in a panel to be detected, the method for detecting sealing performance of a display panel includes:

s4: and acquiring parameters of sealing equipment of the panel to be detected.

Among the sealing device parameters include, but are not limited to: any one or more of a device parameter (e.g., a laminator parameter), a device temperature parameter, a device humidity parameter, and a device vacuum parameter.

S5: and judging whether equipment parameter change occurs according to the sealing equipment parameters.

And comparing the sealing equipment parameters with the initial setting parameters of the sealing equipment. If the equipment parameters are changed, executing a step S6; if no device parameter change occurs, step S6' is performed.

S6: and restoring the parameters of the sealing equipment.

S6': and carrying out physical analysis on the panel to be detected with abnormal sealing.

In this embodiment, performing physical analysis on a panel to be detected with abnormal sealing includes: and (5) concentrative analysis of sealing equipment (laminating machine) and bad cause confirmation.

S7: and preparing the reinspection panel by adopting the restored sealing equipment.

S8: and performing sealing performance detection on the reinspection panel based on a preset detection program.

Specifically, when the panel to be detected is detected to have abnormal sealing, the parameters of the sealing equipment for preparing the panel to be detected are confirmed, if the parameters of the sealing equipment are adjusted, the parameters of the sealing equipment are restored to the initial setting parameters, and the panel (for example, three panels) is prepared again to serve as a reinspection panel. Performing sealing performance detection on the reinspection panel by adopting the same method as the embodiment, and judging that the sealing is abnormal due to parameter change if the reinspection panel sealing performance passes verification; and if the sealing performance verification of the recheck panel fails, carrying out physical analysis on the panel to be detected with abnormal sealing. Abnormal investigation is carried out on equipment parameters, abnormal fitting caused by equipment parameter change is avoided, the reliability of sealing performance verification is improved, and the panel detection efficiency is improved through sealing abnormal cause analysis and parameter correction.

In one embodiment, as shown in fig. 14, when the panel to be detected has a sealing abnormality, the method for detecting the sealing performance of the display panel further includes:

s9: and obtaining the sealing material of the panel to be detected.

In this embodiment, the sealing layer may provide an FSM sublayer and an FSP sublayer. Correspondingly, the sealing material includes, but is not limited to: FSM and FSP materials.

S10: whether the material is changed is judged according to the sealing material.

And comparing the sealing material with the preset sealing layer material. If the raw material is changed, executing step S11; if no material change occurs, step S11' is performed.

S11: the seal detection is aborted.

S11': and carrying out physical analysis on the panel to be detected with abnormal sealing.

Specifically, when the occurrence of abnormal sealing of the panel to be detected is detected, the raw material of the sealing layer of the panel to be detected is confirmed, and if the raw material is adjusted, the stock of the raw material and the increase or decrease of the raw material are checked, and the sealing detection is stopped. By carrying out abnormal investigation on the sealing raw materials, abnormal attachment caused by raw material change is avoided, the sealing performance verification reliability is improved, the sealing abnormal cause analysis path is expanded, and the panel detection efficiency is improved.

Based on the same inventive concept, the invention also provides a display panel sealing performance detection system, which is used for executing the display panel sealing performance detection method provided by any embodiment, and has the corresponding functional modules and beneficial effects of the execution method.

As shown in fig. 15, the display panel sealing performance detection system includes: the configuration module 100 is configured to obtain a panel to be detected and a preset detection program; an execution module 200, configured to execute at least two of the following detections on a panel to be detected based on a preset detection program: appearance detection, adhesive force detection, seal frame reliability detection and adhesive property detection; the analysis module 300 is configured to obtain detection results and sealing requirements of each detection, determine whether the detection results meet the corresponding sealing requirements, and if any one of the detection results does not meet the corresponding sealing requirements, determine that the panel to be detected has abnormal sealing.

In one embodiment, the execution module 200 is configured to measure the outer edge interval size between any two adjacent layers in the panel to be tested when performing the seal frame reliability test; determining an effective frame size according to the outer edge interval size; setting a preset effective threshold value based on the sealing requirement of the reliability detection of the sealing frame; and determining a first reliability detection result according to the effective frame size and a preset effective threshold value.

In one embodiment, when the seal frame reliability detection is performed, the execution module 200 is further configured to measure the size of bubbles existing on the bonding surface between the glass substrate and each layer of the panel to be detected, except for the glass substrate; determining a reliable bonding size according to the outer edge interval size and the bubble size; setting a preset reliability threshold based on the sealing requirement of the reliability detection of the sealing frame; and determining a second reliability detection result according to the reliable bonding size and a preset reliability threshold.

In one embodiment, the execution module 200 is configured to set an unsealing area at an adhesion edge of the sealing layer and the glass substrate when the adhesion detection is performed; setting a preset unsealing angle; applying a force to the unsealing area based on a preset unsealing angle so as to separate the sealing layer from the glass substrate; obtaining a separation force when the sealing layer is separated from the glass substrate; and determining an adhesion detection result according to the separation acting force and a preset adhesion threshold value.

In one embodiment, the execution module 200 is configured to execute the unsealing process on the panel to be detected when the adhesive performance detection is executed; acquiring adhesive form parameters of the surface of the unsealed glass substrate; determining an adhesive property detection result according to the adhesive form parameters; wherein the adhesive morphology parameters include at least one of: adhesive attachment morphology, adhesive tear morphology, or adhesive tear amplitude.

In one embodiment, the execution module 200 is configured to fixedly mount the inspection device at a predetermined position on a side of the sealing layer away from the glass substrate while performing the appearance inspection; acquiring image data of a panel to be detected by adopting detection equipment; judging whether bubbles exist according to the image data, and recording the positions of the bubbles and the sizes of the bubbles.

In one embodiment, the display panel sealing performance detection system further includes: the rechecking module is used for acquiring parameters of the sealing equipment of the panel to be detected; judging whether equipment parameter change occurs according to the sealing equipment parameters; if the equipment parameters are changed, restoring the sealing equipment parameters; preparing a reinspection panel by adopting recovered sealing equipment; and performing sealing performance detection on the reinspection panel based on a preset detection program.

In one embodiment, the display panel sealing performance detection system further includes: the material analysis module is used for acquiring the sealing material of the panel to be detected, comparing the sealing material with the original material and judging whether the raw material is changed or not; if the material is changed, the seal detection is stopped.

Based on the same inventive concept, the invention also provides an electronic device, comprising: at least one processor; and a memory communicatively coupled to the at least one processor; the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to execute the display panel sealing performance detection method.

Fig. 16 shows a schematic diagram of the structure of an electronic device 10 that may be used to implement an embodiment of the present invention. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. Electronic equipment may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.

As shown in fig. 16, the electronic device 10 includes at least one processor 11, and a memory such as a Read Only Memory (ROM) 12, a Random Access Memory (RAM) 13, etc., communicatively connected to the at least one processor 11, wherein the memory stores a computer program executable by the at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the Read Only Memory (ROM) 12 or the computer program loaded from the storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 may also be stored. The processor 11, the ROM 12 and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to bus 14.

Various components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, etc.; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.

The processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, digital Signal Processors (DSPs), and any suitable processor, controller, microcontroller, etc. The processor 11 performs the respective methods and processes described above, such as the display panel sealing performance detection method.

In some embodiments, the display panel sealing performance detection method may be implemented as a computer program tangibly embodied on a computer-readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 10 via the ROM 12 and/or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the display panel sealing performance detection method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform the display panel sealing performance detection method in any other suitable manner (e.g., by means of firmware).

Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.

A computer program for carrying out methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be implemented. The computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.

In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) through which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.

The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.

The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service are overcome.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above embodiments, but may be manufactured in various forms, and it will be understood by those skilled in the art that the present invention may be embodied in other specific forms without changing the technical spirit or essential features of the present invention. Accordingly, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive.

Claims

1. A method for detecting sealing performance of a display panel, the display panel comprising a glass substrate, a display layer, a photosensitive layer, a cathode layer and a sealing layer, the method comprising:

setting a panel to be detected and a preset detection program;

and executing at least two of the following detection on the panel to be detected based on the preset detection program: appearance detection, adhesive force detection, seal frame reliability detection and adhesive property detection;

obtaining detection results and sealing requirements of all detection, and judging whether the detection results meet the corresponding sealing requirements;

if the detection result of any one of the detection does not meet the corresponding sealing requirement, judging that the panel to be detected is abnormal in sealing.

2. The display panel sealing performance detection method according to claim 1, wherein performing the seal frame reliability detection includes:

Measuring the outer edge interval size between any two adjacent layers in the panel to be detected;

determining an effective frame size according to the outer edge interval size;

setting a preset effective threshold value based on the sealing requirement of the reliability detection of the sealing frame;

and determining a first reliability detection result according to the effective frame size and the preset effective threshold.

3. The display panel sealing performance detection method according to claim 2, further comprising:

measuring the size of bubbles existing on the bonding surface between the glass substrate and each layer except the glass substrate in the panel to be detected;

determining a reliable bonding size according to the outer edge spacing size and the bubble size;

setting a preset reliability threshold based on the sealing requirement of the reliability detection of the sealing frame;

and determining a second reliability detection result according to the reliable bonding size and the preset reliability threshold.

4. The display panel sealing performance detection method according to claim 1, wherein performing adhesion detection includes:

an unsealing area is arranged at the bonding edge of the sealing layer and the glass substrate;

setting a preset unsealing angle;

applying a force to the unsealing area based on the preset unsealing angle so as to separate the sealing layer from the glass substrate;

Acquiring a separation acting force when the sealing layer is separated from the glass substrate;

and determining an adhesion detection result according to the separation acting force and a preset adhesion threshold value.

5. The display panel sealing performance detection method according to claim 1, wherein performing adhesion performance detection includes:

performing unsealing treatment on the panel to be detected;

acquiring adhesive form parameters of the surface of the glass substrate after unsealing;

determining an adhesive property detection result according to the adhesive morphological parameters;

6. The display panel sealing performance detection method according to claim 1, wherein performing appearance detection includes:

fixedly mounting detection equipment at a preset position on one side of the sealing layer, which is away from the glass substrate;

acquiring image data of the panel to be detected by adopting the detection equipment;

judging whether bubbles exist according to the image data, and recording the positions of the bubbles and the sizes of the bubbles.

7. The display panel sealing performance detection method according to any one of claims 1 to 6, wherein when a sealing abnormality occurs in the panel to be detected, the method comprises:

Acquiring parameters of sealing equipment of the panel to be detected;

judging whether equipment parameter change occurs according to the sealing equipment parameters;

if the equipment parameters are changed, restoring the sealing equipment parameters;

preparing a reinspection panel by adopting recovered sealing equipment;

and performing sealing performance detection on the reinspection panel based on the preset detection program.

8. The display panel sealing performance detection method according to any one of claims 1 to 6, wherein when a sealing abnormality occurs in the panel to be detected, the method further comprises:

acquiring a sealing material of the panel to be detected;

judging whether raw material change occurs according to the sealing material;

if the material is changed, the seal detection is stopped.

9. A display panel sealing performance detection system, the display panel comprising a glass substrate, a display layer, a photosensitive layer, a cathode layer, and a sealing layer, the system comprising:

the configuration module is used for acquiring a panel to be detected and a preset detection program;

the execution module is used for executing at least two of the following detection on the panel to be detected based on the preset detection program: appearance detection, adhesive force detection, seal frame reliability detection and adhesive property detection;

The analysis module is used for acquiring detection results and sealing requirements of all the detection, judging whether the detection results meet the corresponding sealing requirements, and judging that the panel to be detected is abnormal in sealing if the detection results of any one of the detection results do not meet the corresponding sealing requirements.

10. An electronic device, the electronic device comprising:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein, the liquid crystal display device comprises a liquid crystal display device,

the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the display panel sealing performance detection method of any one of claims 1 to 8.