Maintenance device, maintenance method, storage medium and computer equipment

Abstract

The invention discloses a maintenance device, a maintenance method, a storage medium and computer equipment. The maintenance device of one embodiment comprises a fixed table, an optical positioning unit, a maintenance unit, a displacement unit and a control unit, wherein the fixed table comprises a workbench with a horizontal plane and a vertically arranged portal frame; the optical positioning unit is used for performing optical detection on the liquid crystal panel fixed on the horizontal plane, generating an optical image of the liquid crystal panel and outputting the optical image to the control unit; the control unit is used for generating a first moving signal and a maintenance signal according to the optical imaging; the displacement unit is used for moving the maintenance unit to the position above the liquid crystal panel at the defective position in response to the first moving signal; and the maintenance unit is used for responding to the maintenance signal to maintain the liquid crystal panel at the bad position.

Description

Technical Field

[0001] The present invention relates to the field of display technology. More specifically, it relates to a repair device, a repair method, a storage medium, and a computer device. Background Art

[0002] The main reason for the formation of panel defects in the liquid crystal industry is foreign particles during the manufacturing process. The foreign objects cause changes in the pressure difference of the liquid crystal, resulting in poor blooming. There will be a certain proportion of the incidence of poor blooming (ParticleGap) during the manufacturing process of liquid crystal panels. Therefore, this embodiment proposes a repair device to repair poor blooming. Summary of the Invention

[0003] The purpose of the present invention is to provide a repair device, a repair method, a storage medium, and a computer device to solve at least one of the problems existing in the prior art.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] In a first aspect of the present invention, there is provided a repair device for a liquid crystal panel. The repair device includes a fixing table, an optical positioning unit, a repair unit, a displacement unit, and a control unit:

[0006] The fixing table includes a workbench with a horizontal plane and a gantry vertically arranged;

[0007] The optical positioning unit is used to perform optical detection on the liquid crystal panel fixed on the horizontal plane, generate an optical image of the liquid crystal panel, and output it to the control unit;

[0008] The control unit is used to generate a first movement signal and a repair signal according to the optical image;

[0009] The displacement unit is used to move the repair unit above the liquid crystal panel at the defective position in response to the first movement signal;

[0010] The repair unit is used to repair the liquid crystal panel at the defective position in response to the repair signal.

[0011] In an optional embodiment, the control unit further determines one or more of the position, size, and material of the defect of the liquid crystal panel according to the color in the optical image.

[0012] In an optional embodiment, one direction parallel to the horizontal plane is the first direction, another direction parallel to the horizontal plane and perpendicular to the first direction is the second direction, and the third direction is perpendicular to the first direction and perpendicular to the second direction;

[0013] The optical positioning unit includes:

[0014] An orbital unit, including a sliding part arranged on the cross beam of the gantry, an extension part extending from the gantry towards the workbench, and a bearing part located on the side of the extension part facing the workbench. The sliding part moves along the first direction, and the extension part moves along the third direction;

[0015] A first light-emitting unit for emitting detection light towards the liquid crystal panel,

[0016] A second light-emitting unit, arranged on the side of the workbench away from the horizontal plane, for emitting transmitted light towards the liquid crystal panel;

[0017] An imaging unit, located on the side of the bearing part facing the fixed table, for acquiring the optical imaging of the liquid crystal panel in the light-emitting environment of the first light-emitting unit and the second light-emitting unit.

[0018] In an alternative embodiment, the control unit is further configured to generate a second movement signal to the displacement unit, so that the displacement unit controls the gantry to move along the second direction, and controls the orbital unit to move along the first direction or the second direction, so that the imaging unit acquires the optical imaging of different positions of the liquid crystal panel.

[0019] In an alternative embodiment, the maintenance signal includes one or more combinations of a heating signal, a vibration signal, and a pressing signal. The maintenance unit includes:

[0020] A heating part, located on the side of the bearing part facing the fixed table, for heating the liquid crystal panel at the defective position in response to the heating signal;

[0021] A vibration part, located on the side of the bearing part facing the fixed table, for vibrating the liquid crystal panel at the defective position in response to the vibration signal; and

[0022] A pressing part, located on the side of the bearing part facing the fixed table, for pressing the liquid crystal panel at the defective position in response to the pressing signal.

[0023] In an alternative embodiment, the pressing part is independently arranged from the heating part and the vibration part.

[0024] The end of the pressing part close to the liquid crystal panel is a conical structure. The top of the conical structure is an arc surface, and the apex angle of the conical structure is 30 to 45°.

[0025] In an alternative embodiment, the heating part and the vibration part are integrally arranged in the same component.

[0026] The surface of the vibration part facing the liquid crystal panel is an arc surface, the heating temperature of the heating part is 200 - 300 °C, and the vibration frequency of the vibration part is 30 - 50 HZ.

[0027] The second aspect of the present invention provides a method for repairing a liquid crystal panel, and the repair method includes:

[0028] Fix the liquid crystal panel on the horizontal plane of the workbench;

[0029] Output an imaging signal to the optical positioning unit, and obtain the optical imaging generated by the optical positioning unit for optically detecting the liquid crystal panel fixed on the horizontal plane;

[0030] Generate a first movement signal according to the optical imaging, so as to control the displacement unit to move the repair unit above the liquid crystal panel at the defective position in response to the first movement signal;

[0031] Generate a repair signal according to the optical imaging, so as to control the repair unit to repair the liquid crystal panel at the defective position in response to the repair signal.

[0032] In an optional embodiment, the outputting an imaging signal to the optical positioning unit and obtaining the optical imaging generated by the optical positioning unit for optically detecting the liquid crystal panel fixed on the horizontal plane further includes:

[0033] Generate a second movement signal and output it to the displacement unit, so that the displacement unit controls the gantry to move along the second direction, and controls the track unit of the optical positioning unit to move along the first direction or the second direction;

[0034] Output an imaging signal to the optical positioning unit, so that the imaging unit of the optical positioning unit obtains the optical imaging at different positions of the liquid crystal panel.

[0035] In an optional embodiment, the generating a repair signal according to the optical imaging to control the repair unit to repair the liquid crystal panel at the defective position in response to the repair signal further includes:

[0036] Generate a repair signal including one or more combinations of a heating signal, a vibration signal, and a pressing signal according to the optical imaging, and output it;

[0037] Control the heating part of the repair unit to heat the liquid crystal panel at the defective position according to the heating signal in the repair signal;

[0038] Control the vibration part of the repair unit to vibrate the liquid crystal panel at the defective position according to the vibration signal in the repair signal;

[0039] Control the pressing part of the maintenance unit to press the liquid crystal panel at the defective position according to the pressing signal in the maintenance signal.

[0040] A third aspect of the present invention provides a computer device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the method described in any one of the second aspects of the present invention is implemented.

[0041] A fourth aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, the method described in any one of the second aspects of the present invention is implemented.

[0042] The beneficial effects of the present invention are as follows:

[0043] The maintenance device provided by the embodiment of the present invention uses an optical positioning unit to locate the defective position of the liquid crystal panel and uses a maintenance unit to repair the defective position. The above process can intelligently locate the defective position and automatically repair it, thereby improving the maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The following further describes in detail the specific embodiments of the present invention with reference to the drawings.

[0045] Figure 1 A top view state diagram and a layer structure diagram showing the occurrence of blooming defects in the liquid crystal panel;

[0046] Figure 2 A structural diagram showing the maintenance device according to an embodiment of the present invention;

[0047] Figure 3 A frame diagram showing the maintenance device according to the embodiment of the present invention;

[0048] Figure 4 A frame diagram showing the optical positioning unit of the maintenance device according to the embodiment of the present invention;

[0049] Figure 5 A structural diagram showing the maintenance unit according to the embodiment of the present invention;

[0050] Figure 6 A diagram showing the in-cell structure before and after repairing foreign matter defects;

[0051] Figure 7 A diagram showing the cross-section before and after repairing foreign matter defects;

[0052] Figure 8 A step diagram showing the maintenance method according to another embodiment of the present invention;

[0053] Figure 9 Schematic diagram of the framework of a computer device showing another embodiment of the present invention. Detailed implementation manners

[0054] To more clearly illustrate the present invention, the present invention will be further described below in conjunction with embodiments and drawings. Similar components in the drawings are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not be used to limit the protection scope of the present invention.

[0055] During the manufacturing process of a liquid crystal panel, blooming defects (Particle Gap) may occur, manifested as the defects shown in Figure 1 After analyzing the manufacturing process of the liquid crystal panel and the defective products, the inventor found that the reasons for blooming defects are as follows: To maintain the thickness uniformity of the liquid crystal panel, a certain spacer is used to fill the liquid crystal layer under the condition of not affecting the optical characteristics. However, in the actual manufacturing process, the generation of foreign particles in the liquid crystal layer cannot be avoided. When the height of the foreign particles is greater than the standard cell thickness, there will be a light leakage phenomenon, which is macroscopically manifested as blooming defects.

[0056] Therefore, the inventor proposed that the direction to improve blooming defects can be to reduce the cell thickness change caused by foreign particles, thereby preventing the light leakage phenomenon. However, the difficulty lies in that: foreign particles existing in the liquid crystal panel of the cell cannot be eradicated. Therefore, the inventor thought that the abnormal cell thickness can be improved by changing the shape of the foreign particles.

[0057] Changing the shape of foreign particles can be achieved by artificial methods or physical methods. For artificial methods, a certain pressure can be applied to the defective liquid crystal panel to reduce the deformation of the foreign particles; for physical methods, the foreign particles can be dispersed by irradiating them with a laser.

[0058] However, the above repair directions have certain limitations: on the one hand, using laser repair will cause damage to the circuits of the array substrate, and the success rate is relatively low. After testing, the repair success rate is about 20%. On the other hand, the whole process requires personnel to repair and find defects, and it is easy to cause bumps, and the process is cumbersome. In view of this, the present invention proposes a repair device, a repair method, a storage medium, and a computer device to solve one or more of the above problems.

[0059] The first embodiment of the present invention proposes a repair device for a liquid crystal panel, as shown in Figure 2 and Figure 3 shown, the repair device includes a fixing table 10, an optical positioning unit 20, a repair unit 30, a displacement unit 40, and a control unit 50:

[0060] The fixing table 10 includes a workbench 11 having a horizontal plane and a gantry 12 vertically arranged;

[0061] The optical positioning unit 20 is configured to perform optical detection on the liquid crystal panel 50 fixed on the horizontal plane, generate an optical image of the liquid crystal panel 50, and output it to the control unit 50;

[0062] The control unit 50 is configured to generate a first movement signal and a repair signal based on the optical image;

[0063] The displacement unit 40 is configured to move the repair unit 30 above the liquid crystal panel 50 at the defective position in response to the first movement signal;

[0064] The repair unit 30 is configured to repair the liquid crystal panel 50 at the defective position in response to the repair signal.

[0065] The repair device provided by the embodiment of the present invention uses the optical positioning unit 20 to locate the defective position of the liquid crystal panel 50, and uses the repair unit 30 to repair the defective position. The above process can intelligently locate the defective position and automatically repair it, thereby improving the repair efficiency.

[0066] In an alternative embodiment, one direction parallel to the horizontal plane is the first direction, and the other direction perpendicular to the first direction and parallel to the horizontal plane is the second direction. Exemplarily, as Figure 2 shown, the first direction of this embodiment is the horizontal direction, the second direction is the direction into or out of the paper in the horizontal plane, and the third direction is the vertical direction in height.

[0067] The modules required for the optical positioning unit 20 of this embodiment to implement the function of determining and confirming the defective position of the liquid crystal panel 50 are as follows. In an alternative embodiment, as Figure 2 and Figure 4 shown, the optical positioning unit 20 includes an orbit unit 21, a first light-emitting unit 22, a second light-emitting unit 23, and an imaging unit 24:

[0068] In an alternative embodiment, as Figure 2 shown, the orbit unit 21 includes a sliding part 211 provided on the crossbar of the gantry 12, an extension part 212 extending from the gantry 12 towards the workbench 11, and a bearing part 213 located on the side of the extension part 212 facing the workbench 11. The sliding part 211 moves along the first direction, and the extension part 212 moves along the third direction.

[0069] In an optional embodiment, the control unit 50 is further configured to generate a second movement signal to the displacement unit 40, so that the displacement unit 40 controls the gantry 12 to move along the second direction, controls the track unit 21 to move along the first direction or the third direction, and drives the imaging unit 24 to move in one or more of the first direction, the second direction, and the third direction, so that the imaging unit 24 acquires optical images at different positions of the liquid crystal panel 50.

[0070] In this embodiment, the track unit 21 is used to drive some units of the maintenance device to move and position. For example, the sliding part 211 of the track unit 21 can move in the first direction, the extending part 212 of the track unit 21 can move in the third direction, and the gantry 12 can move in the second direction, driving the imaging unit 24 to move in the first direction or the second direction, so that the optical positioning unit 20 can acquire a complete image of the liquid crystal panel 50 and position to a defective position during maintenance, thereby realizing automatic defective positioning. For another example, the track unit 21 can also drive the maintenance unit 30 to move in the first direction or the third direction for maintenance.

[0071] Based on the above signal control, according to the second displacement signal output by the control unit 40, the displacement unit 40 controls the gantry 12 and the track unit 21 to move to acquire optical images of the liquid crystal panel 50 at different positions; according to the first displacement signal output by the control unit 40, the displacement unit 40 controls the gantry 12 and the track unit 21 to move the maintenance unit for defective maintenance, thereby realizing automatic defective positioning and maintenance.

[0072] In an optional embodiment, the first light-emitting unit 22 is configured to emit detection light to the liquid crystal panel 50, and the second light-emitting unit 23 is disposed on a side of the workbench 11 away from the horizontal plane and is configured to emit transmission light to the liquid crystal panel 50. Exemplarily, as Figure 2 shown, the first light-emitting unit 22 is located on the crossbar of the gantry 12, and the light-emitting surface faces the side of the workbench 11. Exemplarily, the first light-emitting unit 22 is placed on the track unit 21, and under the drive of the track unit 21, the first light-emitting unit 22 can move accordingly, so as to emit detection light to different positions of the liquid crystal panel.

[0073] In this embodiment, the first light-emitting unit 22 emits detection light downward, and the second light-emitting unit 23 emits transmission light upward. After irradiating the liquid crystal panel 50 with the light beams formed by the detection light and the transmission light in two directions, the refraction of the light by the foreign objects and normal materials on the liquid crystal panel 50 is different. For example Figure 1As shown, a halo will be generated at the foreign object position. Therefore, in this embodiment, the first light-emitting unit 22 and the second light-emitting unit 23 are used to make the foreign object clearer in the optical imaging, so as to improve the positioning accuracy of defects.

[0074] In an alternative embodiment, as Figure 2 shown, the imaging unit 24 is located on the side of the carrying part 213 facing the fixing table 10, and is used to obtain the optical imaging of the liquid crystal panel 50 in the light-emitting environment of the first light-emitting unit 22 and the second light-emitting unit 23. Based on the light functions of the foregoing first light-emitting unit 22 and second light-emitting unit 23, the imaging unit 24 of this embodiment scans the liquid crystal panel 50, so as to obtain the optical imaging of the entire area of the liquid crystal panel 50.

[0075] In an alternative embodiment, the optical positioning unit 20 includes a focusing unit, and the focusing unit is used to adjust the focal length state of the imaging unit 24, so that the imaging unit 24 can have a better imaging effect.

[0076] In an alternative embodiment, the control unit 50 further determines one or more of the position, size, and material of the defect of the liquid crystal panel 50 according to the color in the optical imaging.

[0077] Foreign objects of different materials present different states after being irradiated by light. Exemplarily, metal foreign objects, organic material foreign objects, and inorganic material foreign objects present different states, and the halo formed by the metal foreign object is brighter. Therefore, based on the optical imaging, the control unit 50 can determine the foreign object at the halo position, so as to generate a corresponding repair signal.

[0078] In an alternative embodiment, as Figure 5 shown, the repair unit 30 includes:

[0079] A heating part 31, located on the side of the carrying part 213 facing the fixing table 10, and is used to heat the liquid crystal panel 50 at the defective position in response to the heating signal;

[0080] A vibration part 32, located on the side of the carrying part 213 facing the fixing table 10, and is used to vibrate the liquid crystal panel 50 at the defective position in response to the vibration signal; and

[0081] A pressing part 33, located on the side of the carrying part 213 facing the fixing table 10, and is used to press the liquid crystal panel 50 at the defective position in response to the pressing signal,

[0082] The repair signal includes a combination of one or more of a heating signal, a vibration signal, and a pressing signal having a repair timing and a repair sequence.

[0083] In this embodiment, the maintenance unit 30 has the functions of heating, vibrating, and pressing. The foreign object is softened by the heating part 31, and the foreign object is vibrated by the vibrating part 32, so that the foreign object becomes smaller or is dismembered. Then, the auxiliary pressing method is carried out by the pressing part 33 for maintenance, so as to improve or eliminate the bleeding defect.

[0084] Exemplarily, the shape of the foreign object before maintenance is as Figure 6 shown in 6a. Before repair, the highest abnormal Gap value reaches 5.76um, exceeding the standard cell thickness of 3.2±0.2um.

[0085] The control unit 50 determines the foreign object image at the defective position according to the optical image to generate a maintenance signal. The heating part 31 softens the foreign object according to the maintenance signal. After heating to a certain temperature, the foreign object softens and loses its activity. The vibrating part 32 vibrates the foreign object at a certain frequency according to the maintenance signal. After vibration, the foreign object will be dismembered into small foreign objects. Then, the pressing part 33 is used to adjust the angle of the small foreign objects. The upright small foreign objects can be pressed into an inclined or horizontal state, so as to further improve the influence of the foreign object on the cell thickness. The shape of the foreign object after maintenance is as Figure 6 shown in 6b. After repair, the thickness of the abnormal cell thickness area is 3.1um, approaching the standard cell thickness.

[0086] Figure 7 The figure shows a model diagram of the inventor's measurement of the cross-sectional height of the foreign object particles of other defective liquid crystal panels 50 and the samples after successful repair by FIB (sectioning). As Figure 7 shown in 7a, the height of the foreign object particles is 9.843um, which greatly exceeds the standard cell thickness. After being repaired by the maintenance device of the embodiment of the present invention, the height of the successfully repaired foreign object particles is 3.321um, approaching the standard cell thickness of 3.2±0.2um. It can be seen that the maintenance device of the embodiment of the present invention has a significant improvement effect on the bleeding defect caused by the change in cell thickness caused by foreign objects.

[0087] Based on the above-mentioned maintenance experiment verification of multiple defective liquid crystal panels 50 by the inventor, the success rate of the maintenance method combining heating, vibration, and pressing in the embodiment of the present invention is 45%-75%, which is 30% higher than the maintenance success rate of the process production line of the related technology. Moreover, the maintenance device of the embodiment of the present invention can perform maintenance fully automatically, saving labor costs and further improving the production line efficiency.

[0088] In an optional embodiment, the control unit 50 is configured to output a detection signal after each maintenance. The optical positioning unit 20 generates a detection image according to the detection signal. The control unit 50 determines whether to perform the next maintenance according to the detection image until the detection image is determined to be a standard image, and then the maintenance of the liquid crystal panel at the same defective position is completed.

[0089] Exemplarily, such as Figure 6 and Figure 7 As shown, the standard cell thickness of the liquid crystal panel 50 with different sizes is different, and the abnormal cell thickness caused by different foreign object heights is also different. Therefore, in order to avoid over-repairing or insufficient repair of the liquid crystal panel 50 during the repair process, the embodiments of the present invention ensure the repair effect and further improve the repair yield by designing a multi-repair and re-inspection scheme after repair.

[0090] In an alternative embodiment, the smaller the standard cell thickness of the liquid crystal panel 50, the more times of repair at the same defective position, and the smaller the vibration frequency and pressing force set each time. By means of less foreign object height and more repair times, the repair effect is ensured and the repair yield is further improved.

[0091] In an alternative embodiment, such as Figure 5 As shown, the pressing part 33 is independently arranged from the heating part 31 and the vibrating part 32, that is to say, the pressing part 33, the heating part 31 and the vibrating part 32 are located at different positions of the bearing part 213.

[0092] In an alternative embodiment, the bearing part 213 or the extending part 212 rotates around an axis parallel to the third direction. Based on this setting, after the vibration process is completed, the pressing part 33 can be adjusted to the defective position by rotating the bearing part 213 or the extending part 212, and further press the liquid crystal panel 50 to realize the transformation of different repair processes.

[0093] In an alternative embodiment, the heating part 31 and the vibrating part 32 are integrally arranged in the same component. For example Figure 5 As shown, the heating part 31 and the vibrating part 32 are integrated in a columnar component. The integrated setting simplifies the structure and avoids the precision deviation that may be caused by rotating the component multiple times.

[0094] In an alternative embodiment, the repair unit 30 further includes a first micro-movement part located at the position of the integrated heating part 31 and vibrating part 32, and a second micro-movement part located at the position of the pressing part 33. The first micro-movement part is used to adjust the moving height of the integrated heating part 31 and vibrating part 32 in the third direction, and the second micro-movement part is used to adjust the moving height of the pressing part 33 in the third direction, so as to avoid the pressing part 33 contacting the liquid crystal panel 50 at another position when the integrated heating part 31 and vibrating part 32 perform the heating and vibration process, and ensure the repair yield.

[0095] In an alternative embodiment, the control unit 50 takes the abnormal cell gap of the liquid crystal panel 50 at the defective position as the first target and the standard cell gap of the liquid crystal panel 50 as the second target, and uses the design of experiments (DOE) and the cyclic experiment method, such as the PDCA experiment method, to obtain the optimal repair parameters of the vibration part 32, the heating part 31, and the pressing part 33 under the conditions of the preset number of experimental factors and the preset number of levels.

[0096] The embodiment of the present invention combines the design of experiments (DOE) to find various parameters that affect the repair effect during the repair process, conducts a PDCA experiment according to the full-factor design of 3 experimental factors and 2-level values, and finds out several repair parameters that most affect the repair effect from various parameters through multiple analyses. Further, each repair parameter among the several repair parameters is constrained and optimized to obtain the optimal parameter value for each repair parameter, so as to achieve the optimal repair effect.

[0097] In an alternative embodiment, several repair parameters that most affect the repair effect include one or more of the vibration frequency of the vibration part 32, the heating temperature of the heating part 31, the number of presses of the pressing part 33, the contact surface shape of the pressing part 33 in contact with the liquid crystal panel 50, and the pressing force of the pressing part 33.

[0098] Based on the above process of determining the heating temperature, vibration frequency, and the shape of the pressing part 33, those skilled in the art can design according to the parameters of the specific liquid crystal panel 50 and refer to the relevant parts to obtain parameters suitable for different repair environments and improve the repair success rate.

[0099] In an alternative embodiment, the end of the pressing part 33 close to the liquid crystal panel 50 is a conical structure, the top of the conical structure is an arc surface, the apex angle of the conical structure is 30° to 45°, and the surface of the vibration part 32 facing the liquid crystal panel 50 is an arc surface. That is to say, the surface shapes of the pressing part 33 and the vibration part 32 in contact with the liquid crystal panel 50 in this embodiment are different. The contact area between the vibration part 32 and the liquid crystal panel 50 is larger, which avoids scratching the liquid crystal panel 50 during the vibration process. The pressing part 33 is a conical head to more accurately press the defective position and improve the pressing accuracy.

[0100] In an alternative embodiment, the heating temperature of the heating part 31 is 200 - 300 °C, and the component temperature of the pressing part 33 is at normal temperature for cold pressing, for example, the component temperature is 20 - 30 °C. In this embodiment, the heating temperatures of the heating part 31 and the vibrating part 32 are different. The heating part 31 functions to soften foreign matters, and the pressing part 33 is designed at normal temperature. Exemplarily, the inventor has experimented with different heating temperatures and obtained that the maximum range of the heating temperature is 200 - 400 °C, the temperature range applicable to various foreign matters is 200 - 300 °C, and the optimal heating temperature is 220 °C, ensuring a good softening effect of foreign matters and not affecting other properties of the liquid crystal panel 50.

[0101] In an alternative embodiment, the vibration frequency of the vibrating part 32 is 30 - 50 HZ, preferably 40 HZ, and the pressing force of the pressing part 33 is 40 - 60 N.

[0102] In an alternative embodiment, the maintenance device further includes a protection unit for detecting one or more parameters among the temperature of the heating part 31, the vibration frequency of the vibrating part 32, and the pressing force of the pressing part 33, and outputting a warning message when the detected parameter exceeds a preset threshold. Exemplarily, the protection unit may include a temperature control alarm, a frequency detector, a pressure alarm, etc., to ensure the safety during the maintenance process.

[0103] Based on the maintenance device of the above embodiments of the present invention, combining the maintenance methods of heating, vibration, and pressing, it can effectively eliminate the blooming defect caused by foreign matters, reduce the abnormal cell thickness, improve the success rate of repairing the blooming defect, enhance the yield, and the entire maintenance process is automated, automatically locating the defective position and automatically repairing, improving the production efficiency and reducing the occurrence of personnel quality accidents, having a wide range of application prospects.

[0104] Another embodiment of the present invention proposes a maintenance method for a liquid crystal panel. Exemplarily, the maintenance method described in the present invention can be executed by the control unit 50 in the above embodiments, as Figure 8 shown, the maintenance method includes:

[0105] S10. Fix the liquid crystal panel 50 on the horizontal plane of the workbench 11. Exemplarily, the control unit 50 controls the clamping device to fix the liquid crystal panel 50.

[0106] S30. Output an imaging signal to the optical positioning unit 20, and obtain the optical imaging generated by the optical detection of the liquid crystal panel 50 fixed on the horizontal plane by the optical positioning unit 20.

[0107] S50. Generate a first movement signal according to the optical imaging to control the displacement unit 40 to move the maintenance unit 30 above the liquid crystal panel 50 at the defective position in response to the first movement signal.

[0108] S70. Generate a repair signal based on the optical imaging to control the repair unit 30 to repair the liquid crystal panel 50 at the defective position in response to the repair signal.

[0109] For the repair method provided by the embodiment of the present invention, the control unit 50 outputs different signals so that the optical positioning unit 20 locates the defective position of the liquid crystal panel 50, and the repair unit 30 repairs the defective position. The above repair process can intelligently locate the defective position and automatically repair the defect, thereby improving the repair efficiency of the liquid crystal panel 50.

[0110] In an optional embodiment, step S30 "output an imaging signal to the optical positioning unit 20 and obtain the optical imaging generated by the optical positioning unit 20 for optically detecting the liquid crystal panel 50 fixed on the horizontal plane" further includes:

[0111] S31. Generate a second movement signal and output it to the displacement unit 40 so that the displacement unit 40 controls the gantry 12 to move along the second direction and controls the track unit 21 of the optical positioning unit 20 to move along the first direction or the second direction;

[0112] S33. Output an imaging signal to the optical positioning unit 20 so that the imaging unit 24 of the optical positioning unit 20 obtains the optical imaging at different positions of the liquid crystal panel 50.

[0113] In an optional embodiment, step S70 "generate a repair signal based on the optical imaging to control the repair unit 30 to repair the liquid crystal panel 50 at the defective position in response to the repair signal" further includes:

[0114] S71. Generate a repair signal including one or more combinations of a heating signal, a vibration signal, and a pressing signal based on the optical imaging;

[0115] S73. Control the heating part 31 of the repair unit 30 to heat the liquid crystal panel 50 at the defective position according to the heating signal in the repair signal;

[0116] S75. Control the vibration part 32 of the repair unit 30 to vibrate the liquid crystal panel 50 at the defective position according to the vibration signal in the repair signal;

[0117] S77. Control the pressing part 33 of the repair unit 30 to press the liquid crystal panel 50 at the defective position according to the pressing signal in the repair signal.

[0118] The repair method of this embodiment combines processes such as heating, vibration, and pressing. The foreign object is softened by the heating part 31, and the foreign object is vibrated by the vibration part 32, so that the foreign object becomes smaller or is dismembered. Then, the auxiliary pressing method is carried out by the pressing part 33 for repair, so as to improve or eliminate the bleeding defect. The success rate of the repair method is 45%-75%, which is 30% higher than that of the repair success rate of the process production line in the related technology, saving labor costs and further improving the production line efficiency.

[0119] Another embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the repair method of the foregoing embodiment is implemented.

[0120] In practical applications, the computer-readable storage medium may adopt any combination of one or more computer-readable media. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples (non-exhaustive list) of the computer-readable storage medium include: an electrical connection having one or more wires, a portable computer disk, 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 disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium that contains or stores a program, and the program may be used by or in combination with an instruction execution system, apparatus, or device.

[0121] The computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, in which the computer-readable program code is carried. Such a propagated data signal may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. The computer-readable signal medium may also be any computer-readable medium other than the computer-readable storage medium, and the computer-readable medium may send, propagate, or transmit a program for use by or in combination with an instruction execution system, apparatus, or device.

[0122] The program code included on the computer-readable medium may be transmitted by any suitable medium, including but not limited to wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0123] Computer program code for performing the operations of the present invention may be written in one or more programming languages or combinations thereof, including object-oriented programming languages such as Java, Smalltalk, C++, and also including conventional procedural programming languages such as the "C" language or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, executed as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0124] As Figure 9 shown, a schematic structural diagram of a computer device provided by another embodiment of the present invention. Figure 9 The computer device 901 shown is merely an example and should not impose any limitation on the functions and scope of use of the embodiments of the present invention.

[0125] As Figure 9 shown, the computer device 901 is presented in the form of a general-purpose computing device. The components of the computer device 901 may include, but are not limited to: one or more processors or processing units 916, a system memory 978, and a bus 918 connecting different system components (including the system memory 978 and the processing unit 916).

[0126] The bus 918 represents one or more of several types of bus architectures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local area bus using any of the various bus architectures. By way of example, these architectures include, but are not limited to, Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MAC) bus, Enhanced ISA bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.

[0127] The computer device 901 typically includes a variety of computer system-readable media. These media can be any available media that can be accessed by the computer device 901, including volatile and non-volatile media, removable and non-removable media.

[0128] System memory 978 can include computer system readable media in the form of volatile memory, such as random access memory (RAM) 980 and / or cache memory 982. Computer device 901 can further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, storage system 984 can be used for reading and writing on non-removable, non-volatile magnetic media ( Figure 9 not shown, typically referred to as a "hard disk drive"). Although Figure 9 not shown in the figure, a disk drive for reading and writing on removable non-volatile disks (such as "floppy disks"), and an optical disk drive for reading and writing on removable non-volatile optical disks (such as CD-ROM, DVD-ROM or other optical media) can be provided. In these cases, each drive can be connected to bus 918 through one or more data media interfaces. Memory 978 can include at least one program product having a set (such as at least one) of program modules that are configured to perform the functions of the various embodiments of the present invention.

[0129] A program / utilities 90 having a set (at least one) of program modules 92 can be stored, for example, in memory 978. Such program modules 92 include, but are not limited to, an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include an implementation of a network environment. Program modules 92 generally perform the functions and / or methods in the embodiments described in the present invention.

[0130] Computer device 901 can also communicate with one or more external devices 914 (such as a keyboard, a pointing device, a display 974, etc.), and can also communicate with one or more devices that enable a user to interact with the computer device 901, and / or communicate with any device that enables the computer device 901 to communicate with one or more other computing devices (such as a network card, a modem, etc.). Such communication can be carried out through an input / output (I / O) interface 972. And, computer device 901 can also communicate with one or more networks (such as a local area network (LAN), a wide area network (WAN) and / or a public network, such as the Internet) through a network adapter 970. As Figure 9 shown, network adapter 970 communicates with other modules of computer device 901 through bus 918. It should be understood that although Figure 9 not shown in the figure, other hardware and / or software modules can be used in conjunction with computer device 901, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, etc.

[0131] The processor unit 916 performs various functional applications and data processing by running the programs stored in the system memory 978, such as implementing the maintenance method of the foregoing embodiments.

[0132] It should be noted that for the specific embodiments of the functions performed by each unit in the maintenance method of the embodiments of the present invention, reference may be made to the maintenance devices of the foregoing embodiments, which will not be elaborated herein.

[0133] In the description of the present invention, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0134] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to enumerate all the implementation manners here. Any obvious changes or modifications derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. A liquid crystal panel maintenance device, characterized in that: The maintenance device includes a fixing table, an optical positioning unit, a maintenance unit, a displacement unit and a control unit: The fixed platform includes a workbench with a horizontal surface and a vertically arranged gantry; The optical positioning unit is used to perform optical detection on the liquid crystal panel fixed on the horizontal plane, generate an optical imaging of the liquid crystal panel and output it to the control unit; The control unit is used to generate a first movement signal and a maintenance signal according to the optical imaging; The displacement unit is used to move the maintenance unit to above the liquid crystal panel at a bad position in response to the first movement signal; The maintenance unit is used for repairing the liquid crystal panel at a defective position in response to the maintenance signal.

2. The maintenance device according to claim 1, characterized in that: The control unit further determines one or more of a defective position, size and material of the liquid crystal panel according to the color in the optical imaging.

3. The maintenance device according to claim 1, characterized in that: A direction parallel to the horizontal plane is a first direction, another direction perpendicular to the first direction and parallel to the horizontal plane is a second direction, and a third direction is perpendicular to the first direction and perpendicular to the second direction; The optical positioning unit comprises: A track unit, comprising a sliding portion arranged on the horizontal frame of the gantry, an extending portion extending from the gantry toward the workbench, and a bearing portion located on a side of the extending portion facing the workbench, wherein the sliding portion moves along the first direction, and the extending portion moves in the third direction; A first light emitting unit is used to emit detection light to the liquid crystal panel, A second light emitting unit, disposed on a side of the workbench away from the horizontal plane, for emitting transmitted light toward the liquid crystal panel; An imaging unit is located on the side of the bearing portion facing the fixing platform and is used to obtain optical imaging of the liquid crystal panel under the light emitting environment of the first light emitting unit and the second light emitting unit.

4. The maintenance device according to claim 3, characterized in that: The control unit is further used to generate a second movement signal to the displacement unit, so that the displacement unit controls the gantry to move along the second direction, and the displacement unit controls the track unit to move along the first direction or the third direction.

5. The maintenance device according to claim 1, characterized in that: The maintenance signal includes one or more combinations of a heating signal, a vibration signal and a pressing signal, and the maintenance unit includes: a heating portion, located on a side of the bearing portion facing the fixing platform, and configured to heat the liquid crystal panel at the defective position in response to the heating signal; a vibration part, located on a side of the bearing part facing the fixing platform, and configured to vibrate the liquid crystal panel at the defective position in response to the vibration signal; and The pressing portion is located on a side of the bearing portion facing the fixing platform, and is used for pressing the liquid crystal panel at the defective position in response to the pressing signal.

6. The maintenance device according to claim 5, characterized in that: The pressing part is independently provided from the heating part and the vibration part. The end of the pressing portion close to the liquid crystal panel is a conical structure, the top angle of the conical structure is 30-45 degrees, and the top of the conical structure is an arc surface.

7. The maintenance device according to claim 5, characterized in that: The heating part and the vibration part are integrated in the same component. The surface of the vibration part facing the liquid crystal panel is an arc-shaped surface, the heating temperature of the heating part is 200-300° C., and the vibration frequency of the vibration part is 30-50 Hz.

8. A method for repairing a liquid crystal panel, characterized in that: The maintenance method comprises: Fix the LCD panel on the horizontal surface of the workbench; Outputting an imaging signal to an optical positioning unit, and acquiring an optical imaging generated by the optical positioning unit performing optical detection on a liquid crystal panel fixed on the horizontal plane; generating a first movement signal according to the optical imaging to control the displacement unit to move the maintenance unit to above the liquid crystal panel at the defective position in response to the first movement signal; A maintenance signal is generated according to the optical imaging to control the maintenance unit to perform maintenance on the liquid crystal panel at a defective position in response to the maintenance signal.

9. The maintenance method according to claim 8, characterized in that: The step of outputting an imaging signal to an optical positioning unit and acquiring an optical imaging generated by the optical positioning unit optically detecting a liquid crystal panel fixed on the horizontal plane further comprises: Generate a second movement signal and output it to the displacement unit, so that the displacement unit controls the gantry to move along the second direction and controls the track unit of the optical positioning unit to move along the first direction or the second direction; An imaging signal is output to the optical positioning unit, so that an imaging unit of the optical positioning unit acquires optical imaging at different positions of the liquid crystal panel.

10. The maintenance method according to claim 9, characterized in that: Generating a maintenance signal according to the optical imaging to control the maintenance unit to perform maintenance on the liquid crystal panel at a defective position in response to the maintenance signal further comprises: Generating a maintenance signal including one or more combinations of a heating signal, a vibration signal and a pressing signal according to the optical imaging, and outputting the signal; Controlling a heating unit of the maintenance unit to heat the liquid crystal panel at the defective position according to a heating signal in the maintenance signal; controlling the vibration unit of the maintenance unit to vibrate the liquid crystal panel at the defective position according to the vibration signal in the maintenance signal; and The pressing portion of the maintenance unit is controlled to press the liquid crystal panel at the defective position according to a pressing signal in the maintenance signal.

11. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the method according to any one of claims 8 to 10 is implemented.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 8 to 10 is implemented.

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