CN113253492B - Display screen repairing method and device - Google Patents
Display screen repairing method and device Download PDFInfo
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- CN113253492B CN113253492B CN202110463117.3A CN202110463117A CN113253492B CN 113253492 B CN113253492 B CN 113253492B CN 202110463117 A CN202110463117 A CN 202110463117A CN 113253492 B CN113253492 B CN 113253492B
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- G—PHYSICS
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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Abstract
The invention discloses a display screen repairing method and a display screen repairing device, wherein the method comprises the following steps: cooling the display screen to be repaired by adopting a preset cooling method; defrosting the display screen to be repaired in a preset time after cooling treatment; and when the target point to be repaired of the display screen to be repaired after the defrosting treatment is detected to meet the preset condition, repairing the target point to be repaired by using laser. The invention reduces the heat influence of laser energy on the area around the target point to be repaired of the display screen to be repaired by adopting a cooling treatment mode, reduces the generation of liquid crystal layer bubbles and shortens the disappearance time of the bubbles, thereby improving the production efficiency and avoiding the abnormal use of the display screen.
Description
Technical Field
The invention relates to the technical field of laser, in particular to a display screen repairing method and device.
Background
With the rapid development of materials, microelectronics, semiconductor manufacturing and application technologies, the flat panel display industry has been emerging, and liquid crystal displays are widely favored due to their advantages of obvious energy saving, low radiation index, difficulty in geometric distortion/linear distortion, large visible area, fine image quality, difficulty in causing image color distortion due to insufficient power supply, and the like.
However, the complicated process in the production process causes the inevitable defects of the product, such as bright spots, flash spots, broken bright spots and the like, thereby affecting the display effect and reducing the yield of the product. Currently, laser repair is generally used for these defects. In general, a liquid crystal layer generates many bubbles during a repair process, and it takes a long time for the bubbles to disappear, which greatly affects production efficiency.
Therefore, it is desirable to provide a new method for repairing a display panel to solve the above problems.
Disclosure of Invention
In order to solve the problems in the prior art, embodiments of the present invention provide a method and an apparatus for repairing a display screen, so as to overcome the problems in the prior art that a liquid crystal layer generates many bubbles during a repairing process, which affects production efficiency and normal use of the display screen.
In order to solve one or more technical problems, the invention adopts the technical scheme that:
in a first aspect, a method for repairing a display screen is provided, which includes the following steps:
cooling the display screen to be repaired by adopting a preset cooling method;
defrosting the display screen to be repaired in a preset time after cooling treatment;
and when the target point to be repaired of the display screen to be repaired after defrosting treatment is detected to meet a preset condition, repairing the target point to be repaired by using laser.
Further, the cooling treatment of the display screen to be repaired by adopting a preset cooling method comprises the following steps:
the method comprises the steps of obtaining relevant parameters of a display screen to be repaired, and determining a preset cooling method for the display screen to be repaired according to the relevant parameters, wherein the relevant parameters at least comprise material characteristics of the display screen to be repaired.
Further, the cooling treatment of the display screen to be repaired by adopting a preset cooling method comprises the following steps:
determining a target point to be repaired on a display screen to be repaired, determining a region to be cooled on the display screen to be repaired according to the target point to be repaired, and spraying a preset coolant on the region to be cooled.
Further, the predetermined coolant comprises a handheld coolant.
Further, the cooling treatment of the display screen to be repaired by adopting a preset cooling method comprises the following steps:
and adopting a preset cooling device to cool the display screen to be repaired, wherein the preset cooling device comprises refrigeration equipment.
Further, the defrosting the display screen to be repaired within a preset time after the cooling treatment includes:
and performing defrosting treatment on the display screen to be repaired after cooling treatment by adopting an air compression device within a preset time.
Further, when it is detected that the target to-be-repaired point of the to-be-repaired display screen after the defrosting process meets a preset condition, performing a repairing operation on the target to-be-repaired point by using laser includes:
and detecting whether water vapor and/or frost residues exist on the surface of the target point to be repaired of the display screen to be repaired after defrosting treatment, and if no residues exist, utilizing laser to repair the target point to be repaired.
Further, when it is detected that the target to-be-repaired point of the display screen to be repaired after the defrosting process meets a preset condition, performing repairing operation on the target to-be-repaired point by using laser includes:
and detecting whether the time after the defrosting treatment exceeds a preset time threshold, and if not, utilizing the laser to repair the target point to be repaired.
Further, when it is detected that the target to-be-repaired point of the display screen to be repaired after the defrosting process meets a preset condition, performing repairing operation on the target to-be-repaired point by using laser includes:
and detecting the surface temperature of the target point to be repaired after defrosting treatment, and repairing the target point to be repaired by using laser when the surface temperature reaches a preset temperature threshold.
In a second aspect, there is provided a display screen repair apparatus, the apparatus including:
the cooling module is used for cooling the display screen to be repaired by adopting a preset cooling method;
the defrosting module is used for defrosting the display screen to be repaired after cooling treatment within a preset time;
the detection module is used for detecting whether the target to-be-repaired point of the display screen to be repaired after defrosting treatment meets a preset condition or not;
and the repairing module is used for repairing the target point to be repaired by utilizing laser.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
according to the display screen repairing method and device provided by the embodiment of the invention, the preset cooling method is adopted to cool the display screen to be repaired, the defrosting treatment is carried out on the display screen to be repaired after the cooling treatment in the preset time, and when the target point to be repaired of the display screen to be repaired after the defrosting treatment is detected to meet the preset condition, the laser is used for repairing the target point to be repaired, so that the heat influence of laser energy on the area around the target point to be repaired of the display screen to be repaired is reduced, the generation of liquid crystal layer bubbles is reduced, the time for the bubbles to disappear is shortened, the production efficiency is improved, and the display screen cannot be normally used is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a liquid crystal display panel according to an exemplary embodiment;
FIG. 2 is a schematic diagram of a laser repair display screen shown in accordance with an exemplary embodiment;
FIG. 3 is a flow diagram illustrating a display screen repair method according to an exemplary embodiment;
fig. 4 is a schematic structural diagram illustrating a display screen repair apparatus according to an exemplary embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural view illustrating a liquid crystal display panel according to an exemplary embodiment, and referring to fig. 1, a liquid crystal display panel generally includes a polarizing layer, a first glass layer, a pixel layer (also referred to as a color film layer), an ITO layer, a liquid crystal layer, and a second glass layer, which are sequentially disposed.
Fig. 2 is a schematic diagram illustrating a laser repairing display panel according to an exemplary embodiment, and referring to fig. 2, when repairing an abnormal point such as an abnormal pixel of a liquid crystal display panel using laser, the abnormal point is repaired by vertically irradiating laser emitted from a laser onto the surface of the abnormal point through a light guide device. In the laser repairing process, the pixel layer (also called as a color film layer) or the ITO layer absorbs part of laser energy to realize carbonization, but part of unabsorbed laser energy can permeate into the liquid crystal layer, so that the liquid crystal layer generates bubbles.
In order to solve the technical problems that in the process of repairing a liquid crystal display screen by adopting a laser technology in the prior art, a liquid crystal layer can generate a plurality of bubbles to influence the production efficiency and the normal use of the display screen, the application provides a display screen repairing method.
Example one
Fig. 3 is a flowchart illustrating a display screen repair method according to an exemplary embodiment, and referring to fig. 3, the method includes the steps of:
s1: and cooling the display screen to be repaired by adopting a preset cooling method.
Specifically, a preset cooling method is adopted to cool the display screen to be repaired, so that the temperature of the surface of the display screen to be repaired is cooled to a preset temperature range. The preset temperature range can be determined according to the self characteristics of the display screen to be repaired, and as a preferred example, the preset temperature range is from-50 ℃ to-100 ℃. In the embodiment of the invention, different preset cooling methods can be configured in advance for different repair scenes, and then a proper preset cooling method is determined according to the actual condition of the display screen to be repaired. For example, in the case of a small number of points to be repaired or a large size of the display screen to be repaired, the points to be repaired may be cooled by locally spraying a coolant, and in the case of a large surface to be repaired or a small size of the display screen to be repaired, the display screen to be repaired may be cooled integrally by using a refrigeration device (such as a refrigerator).
S2: and defrosting the display screen to be repaired after cooling treatment in preset time.
Specifically, on one hand, after the display screen to be repaired is cooled, due to the fact that the temperature difference exists between the temperature of the display screen to be repaired and the temperature of the surrounding processing environment, water vapor in the air condenses on the surface of the display screen to be repaired to form frost or water vapor, the surface of the display screen to be repaired is opaque, laser cannot penetrate through the glass layer to irradiate the pixel layer to be repaired, repair is affected, and therefore defrosting treatment needs to be performed on the display screen to be repaired after cooling treatment, and the frost or water vapor on the surface of the display screen to be repaired is removed. On the other hand, the cooling effect gradually disappears with the passage of time. In order to guarantee that the target point to be repaired is repaired before the cooling effect disappears, so that the cooling effect plays a role, in the embodiment of the invention, the defrosting treatment is carried out on the display screen to be repaired after the cooling treatment within the preset time. In specific implementation, the preset time can be determined according to factors such as the actual processing environment, the cooling effect of the preset cooling method, the characteristics of the material of the display screen to be repaired and the like. For example, in some cases, when the actual processing environment is a constant temperature environment of about 20 ℃, the preset cooling method is to use a coolant that instantaneously cools the surface of the material to-50 ℃, the preset time may be set to 5 seconds, or the like. Specifically, for a Note Book/television display screen, the temperature of a production workshop of the Note Book/television display screen is generally about 23 ℃, various factors are integrated when a refrigerator is used for cooling, and the preset time can also be set to be 5S.
S3: and when the target point to be repaired of the display screen to be repaired after defrosting treatment is detected to meet a preset condition, repairing the target point to be repaired by using laser.
Specifically, the actual conditions (such as surface temperature and the like) around the target point to be repaired of the display screen to be repaired after the defrosting process are detected, and when the detection result meets the preset condition, the target point to be repaired is repaired by using laser, and the specific repairing process can be as shown in fig. 2.
As a preferred implementation manner, in an embodiment of the present invention, the cooling processing performed on the display screen to be repaired by using a preset cooling method includes:
the method comprises the steps of obtaining relevant parameters of a display screen to be repaired, and determining a preset cooling method for the display screen to be repaired according to the relevant parameters, wherein the relevant parameters at least comprise material characteristics of the display screen to be repaired. For the display screen to be repaired which can bear sudden temperature change, a rapid cooling method can be adopted for cooling treatment, for example, a coolant which can instantly cool the surface of the material is sprayed for cooling treatment, and for the display screen to be repaired which can not bear sudden temperature change, a slow cooling method can be adopted for cooling treatment, for example, a refrigeration device such as a refrigerator with adjustable temperature is used for cooling treatment. By the arrangement, unnecessary loss caused by damage of the display screen to be repaired due to an improper cooling method can be avoided.
As a preferred implementation manner, in an embodiment of the present invention, the performing, by using a preset cooling method, a cooling process on a display screen to be repaired includes:
determining a target point to be repaired on a display screen to be repaired, determining a region to be cooled on the display screen to be repaired according to the target point to be repaired, and spraying a preset coolant on the region to be cooled.
Specifically, the preset cooling method comprises the step of cooling the display screen to be repaired by using a preset coolant. The device for spraying the coolant can adopt automatic equipment or hand-held equipment, and is not limited here, and a user can set the device according to actual processing requirements. It should be noted that, when the preset coolant is used for cooling, since the cooling area can be controlled, a target point to be repaired on the display screen to be repaired, such as a pixel point to be repaired, may be determined first. And then determining a region to be cooled on the display screen to be repaired according to the determined target point to be repaired, wherein the region to be cooled can be the region of the target point to be repaired itself or the target point to be repaired and the surrounding region thereof, and the region to be cooled is not limited here and can be set by a user according to the actual processing conditions (such as the cooling effect of the coolant). And finally, spraying a preset coolant on the area to be cooled, and cooling the area. By the mode, the using amount of the coolant can be controlled, unnecessary waste is reduced, and the production cost is controlled.
In a preferred embodiment, the predetermined coolant includes a handheld coolant.
Specifically, the predetermined coolant comprises a hand-held coolant, such as a coolant that instantaneously cools the surface of the material to-50 ℃. When the handheld coolant is used for cooling the display screen to be repaired, the height of a nozzle of the handheld coolant, which is 15cm to 30cm away from the area to be cooled, can be kept, the handheld coolant is uniformly sprayed for 2 times to 3 times, and a layer of white frost is generated on the surface of the area to be cooled. When the handheld coolant is used, only the injection wrench needs to be directly pressed to spray the area to be cooled, so that the handheld coolant has the characteristics of convenience in use and simplicity in operation. Furthermore, in order to avoid the coolant residue from affecting the subsequent processing procedures, the preset coolant in the embodiment of the present invention may be a coolant having a surface that is free of residue after use, instantly evaporates, remains clean after evaporation, does not affect the current property, does not corrode most metals and plastics, and does not wear or scratch the materials.
As a preferred example, the primary cost of the predetermined coolant comprises tetrafluoroethane. The preset coolant can reduce the heat influence of laser energy on the area around the target to-be-repaired point of the display screen to be repaired during laser repair, and is also suitable for preventing heat-sensitive parts from being damaged possibly caused by high temperature during welding, and for preventing metal pipelines from being connected, dismantled and derusted, assembling and dismantling bearings, removing chewing gum and the like.
As a preferred implementation manner, in an embodiment of the present invention, the cooling processing performed on the display screen to be repaired by using a preset cooling method includes:
and adopting a preset cooling device to cool the display screen to be repaired, wherein the preset cooling device comprises refrigeration equipment.
Specifically, the preset cooling method further comprises the step of cooling the display screen to be repaired by using a preset cooling device. The predetermined cooling device includes, but is not limited to, a refrigeration apparatus, such as a refrigerator, etc. It should be noted that, when the preset cooling device is used for cooling, on one hand, for a case that a to-be-repaired area of the to-be-repaired display screen is large, by using the cooling method, the whole to-be-repaired display screen can be cooled at the same time, so that the cooling time is reduced, and the repair efficiency is improved. On the other hand, for some to-be-repaired display screens which cannot bear the abrupt temperature change, a preset cooling device is adopted for cooling treatment, the cooling temperature and time can be controlled in the cooling process, the to-be-repaired display screens are slowly cooled, and damage is avoided.
As a preferred implementation manner, in an embodiment of the present invention, the performing, within a preset time, a defrosting process on the display screen to be repaired after the cooling process includes:
and performing defrosting treatment on the display screen to be repaired after cooling treatment by adopting an air compression device within a preset time.
Specifically, in the embodiment of the present invention, the defrosting device for performing the defrosting process may adopt an air compression device, and the compressed air blows away the frost or water vapor on the surface of the target point to be repaired of the display screen to be repaired. It should be noted that, in the embodiment of the present invention, there is no particular limitation on the pressure of the air compression device, and a user may set the pressure according to actual processing requirements. In addition, the display screen to be repaired after the cooling treatment can be defrosted by adopting equipment such as a blower and the like.
As a preferred embodiment, in the embodiment of the present invention, when it is detected that a target point to be repaired of the display screen to be repaired after the defrosting process meets a preset condition, performing a repairing operation on the target point to be repaired by using a laser includes:
and detecting whether water vapor and/or frost residues exist on the surface of the target point to be repaired of the display screen to be repaired after defrosting treatment, and if no residues exist, utilizing laser to repair the target point to be repaired.
Specifically, frost or water vapor exists on the surface of the display screen to be repaired, so that laser cannot penetrate through the glass layer to irradiate the pixel layer to be repaired, and the repairing effect is influenced. Therefore, before the target point to be repaired is repaired by the laser, whether water vapor or frost residue exists on the surface of the target point to be repaired needs to be detected, if no residue exists, the target point to be repaired is repaired by the laser, and if residue exists, the display screen to be repaired is defrosted again until no water vapor or frost residue exists on the surface of the target point to be repaired. It should be noted that the residue-free condition in the embodiment of the present invention may be that the surface of the target point to be repaired is completely free of moisture or frost residue, or it may be that the detected moisture or frost residue on the surface of the target point to be repaired meets a preset threshold, and it is determined that the residue-free condition exists.
As a preferred implementation manner, in an embodiment of the present invention, when it is detected that a target point to be repaired of the display screen to be repaired after the defrosting process meets a preset condition, performing a repairing operation on the target point to be repaired by using a laser includes:
and detecting whether the time after the defrosting treatment exceeds a preset time threshold, and if not, repairing the target point to be repaired by using laser.
Specifically, in the embodiment of the present invention, when it is determined whether the target point to be repaired of the display screen to be repaired after the defrosting process meets the preset condition, the determination may be performed by determining whether the elapsed time of the display screen to be repaired after the defrosting process exceeds a preset time threshold. If the cooling effect does not exceed the processing requirement, the cooling effect of the display screen to be repaired still meets the processing requirement, at the moment, the target point to be repaired is repaired by using laser, if the cooling effect exceeds the processing requirement, the cooling effect does not meet the processing requirement, and at the moment, the display screen to be repaired needs to be cooled again. It should be noted that the preset time threshold in the embodiment of the present invention may be determined according to the actual processing environment, the cooling effect of the preset cooling method, the characteristics of the material of the display screen to be repaired, and the like, and preferably, the preset time threshold may be set to 1 minute.
As a preferred implementation manner, in an embodiment of the present invention, when it is detected that a target point to be repaired of the display screen to be repaired after the defrosting process meets a preset condition, performing a repairing operation on the target point to be repaired by using a laser includes:
and detecting the surface temperature of the target point to be repaired after defrosting, and when the surface temperature reaches a preset temperature threshold, repairing the target point to be repaired by using laser.
Specifically, in the embodiment of the present invention, when determining whether the target point to be repaired of the display screen to be repaired after the defrosting process meets the preset condition, the method may also be implemented by determining whether the surface temperature of the display screen to be repaired after the defrosting process reaches the preset temperature threshold. And if the surface temperature reaches the preset temperature threshold, repairing the target point to be repaired by using laser, and if the surface temperature does not reach the preset temperature threshold, repairing the target point to be repaired by using laser after the surface temperature reaches the preset temperature threshold so as to achieve the best processing effect, reduce the generation of liquid crystal layer bubbles and shorten the disappearance time of the bubbles. It should be noted that the preset temperature threshold in the embodiment of the present invention may also be determined according to factors such as an actual processing environment, a cooling effect of a preset cooling method, and a characteristic of a material of the display screen to be repaired, which is not limited herein.
Example two
Corresponding to the first embodiment, the present application provides a display screen repairing apparatus, wherein in this embodiment, the same or similar contents as those in the first embodiment may be referred to the above description, and are not repeated herein.
As shown in fig. 2, the apparatus includes:
the cooling module is used for cooling the display screen to be repaired by adopting a preset cooling method;
the defrosting module is used for defrosting the display screen to be repaired after cooling treatment within a preset time;
the detection module is used for detecting whether the target to-be-repaired point of the display screen to be repaired after defrosting treatment meets a preset condition or not;
and the repairing module is used for repairing the target point to be repaired by utilizing laser.
As a preferred implementation manner, in an embodiment of the present invention, the cooling module is configured to obtain relevant parameters of the display screen to be repaired, and determine a preset cooling method for the display screen to be repaired according to the relevant parameters, where the relevant parameters at least include material characteristics of the display screen to be repaired.
As a preferred implementation manner, in an embodiment of the present invention, the cooling module includes:
the positioning unit is used for determining a target point to be repaired on the display screen to be repaired and determining a region to be cooled on the display screen to be repaired according to the target point to be repaired;
and the spraying unit is used for spraying preset coolant on the area to be cooled.
In a preferred embodiment, the predetermined coolant includes a handheld coolant.
As a preferred implementation manner, in an embodiment of the present invention, the cooling module is configured to perform cooling processing on the display screen to be repaired by using a preset cooling device, where the preset cooling device includes a refrigeration apparatus.
As a preferred implementation manner, in an embodiment of the present invention, the defrosting module is configured to perform defrosting processing on the display screen to be repaired after the cooling processing by using an air compression device within a preset time.
As a better implementation manner, in the embodiment of the present invention, the detection module is configured to detect whether there is water vapor and/or frost residue on the surface of the target to-be-repaired point of the to-be-repaired display screen after the defrosting process.
As a preferred implementation manner, in an embodiment of the present invention, the detection module is configured to detect whether a time after the defrosting process exceeds a preset time threshold.
Specifically, the detection unit may employ a timer.
As a preferred implementation manner, in an embodiment of the present invention, the detection module is configured to detect a surface temperature of the target point to be repaired after the defrosting process.
Specifically, the detection unit may employ a temperature sensor.
It should be noted that: in the display screen repair device provided in the foregoing embodiment, when a repair service is triggered, only the division of each functional module is illustrated, and in practical applications, the function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above. In addition, the display screen repair device and the display screen repair method provided by the above embodiment belong to the same concept, that is, the device is based on the display screen repair method, and the specific implementation process thereof is described in detail in the method embodiment and is not described herein again.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A display screen repairing method is characterized by comprising the following steps:
cooling the display screen to be repaired by adopting a preset cooling method;
defrosting the display screen to be repaired after the cooling treatment within a preset time;
when the target point to be repaired of the display screen to be repaired after defrosting treatment is detected to meet a preset condition, repairing the target point to be repaired by using laser;
when it is detected that the target point to be repaired of the display screen to be repaired after the defrosting process meets a preset condition, performing repairing operation on the target point to be repaired by using laser comprises:
detecting whether water vapor and/or frost residues exist on the surface of a target point to be repaired of the display screen to be repaired after defrosting treatment, and if no residues exist, repairing the target point to be repaired by using laser;
detecting whether the time after defrosting treatment exceeds a preset time threshold, and if not, repairing the target point to be repaired by using laser; and
and detecting the surface temperature of the target point to be repaired after defrosting treatment, and repairing the target point to be repaired by using laser when the surface temperature reaches a preset temperature threshold.
2. The display screen repairing method according to claim 1, wherein the cooling treatment of the display screen to be repaired by adopting a preset cooling method comprises:
the method comprises the steps of obtaining relevant parameters of a display screen to be repaired, and determining a preset cooling method for the display screen to be repaired according to the relevant parameters, wherein the relevant parameters at least comprise material characteristics of the display screen to be repaired.
3. The display screen repairing method according to claim 1 or 2, wherein the cooling treatment of the display screen to be repaired by adopting a preset cooling method comprises the following steps:
determining a target point to be repaired on a display screen to be repaired, determining a region to be cooled on the display screen to be repaired according to the target point to be repaired, and spraying a preset coolant on the region to be cooled.
4. The display screen repair method of claim 3, wherein the predetermined coolant comprises a hand-held coolant.
5. The display screen repairing method according to claim 1 or 2, wherein the cooling treatment of the display screen to be repaired by adopting a preset cooling method comprises:
and adopting a preset cooling device to cool the display screen to be repaired, wherein the preset cooling device comprises refrigeration equipment.
6. The display screen repairing method according to claim 1 or 2, wherein the defrosting the display screen to be repaired within a preset time after the cooling treatment comprises:
and defrosting the display screen to be repaired after the cooling treatment by adopting an air compression device within a preset time.
7. A display screen repair apparatus, the apparatus comprising:
the cooling module is used for cooling the display screen to be repaired by adopting a preset cooling method;
the defrosting module is used for defrosting the display screen to be repaired after cooling treatment within preset time;
the detection module is used for detecting whether the target to-be-repaired point of the display screen to be repaired after defrosting treatment meets a preset condition or not;
the repairing module is used for repairing the target point to be repaired by utilizing laser;
the detection module detects whether water vapor and/or frost residues exist on the surface of a target point to be repaired of the display screen to be repaired after defrosting treatment, and if no residues exist, the repair module performs repair operation on the target point to be repaired by using laser;
the detection module detects whether the time passed after defrosting treatment exceeds a preset time threshold value, and if not, the repair module performs repair operation on the target point to be repaired by using laser;
the detection module detects the surface temperature of the target point to be repaired after defrosting treatment, and when the surface temperature reaches a preset temperature threshold value, the repair module performs repair operation on the target point to be repaired by using laser.
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| KR102216675B1 (en) * | 2014-06-12 | 2021-02-18 | 삼성디스플레이 주식회사 | Repairing apparatus for display apparatus and repairing method for disaplay apparatus |
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| US5991002A (en) * | 1997-10-02 | 1999-11-23 | Casio Computer Co., Ltd. | Method for correcting a defect in a liquid crystal panel |
| CN1755439A (en) * | 2004-09-27 | 2006-04-05 | 株式会社东芝 | Method and apparatus for repairing defective pixel of liquid crystal display |
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