Display pixel repairing method, device and equipment and readable storage medium

Abstract

The invention relates to a display pixel repairing method, device and equipment and a readable storage medium, and the method comprises the steps: carrying out the laser scanning between a color film color resistor of a to-be-repaired display pixel and a glass substrate, and obtaining a target filling gap after laser scanning; performing granulation processing on the black matrix of the display pixel to be repaired, and determining granulated target black particles; and shifting the target black particles to the target filling gap, and determining a repair result of the display pixel. According to the method, the color film color resistor of the to-be-repaired display pixel can be completely and uniformly covered, and a screen for preventing the poor light leakage condition of bright spots is constructed, so that the purpose of dark spots of the to-be-repaired pixel is achieved, the yield of formed products is effectively improved, and the higher requirement for display quality is met.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display pixel repair method, device, equipment and readable storage medium. Background Art

[0002] With the continuous development of display technology and the increasing demand for display, the demand for display quality is becoming increasingly higher. As the mainstream display product, TFT-LCD (Thin Film Transistor Liquid Crystal Display) brings convenience to people while the demand for high-quality performance experience is increasing year by year.

[0003] Currently, LCD screens are made by laminating a CF color filter substrate and a TFT thin film transistor (TFT) array substrate. The manufacturing process requires repeated coating, exposure, etching, and development processes to form a multi-layer structure. However, during this complex manufacturing process, various structural defects such as broken wires, short circuits, and foreign matter contamination may occur, resulting in uncontrolled pixel display anomalies. For example, hot pixels (hot pixels) may cause light leakage, reducing the yield of the finished product and causing the pixels to fail to display properly. Summary of the Invention

[0004] Based on this, it is necessary to provide a display pixel repair method, device, equipment and readable storage medium to address the above technical problems.

[0005] A display pixel repair method, comprising:

[0006] Performing laser scanning between the color filter and the glass substrate of the display pixel to be repaired, and obtaining a target filling gap after the laser scanning;

[0007] performing granulation processing on the black matrix of the display pixel to be repaired, and determining target black particles after the granulation;

[0008] The target black particles are shifted to the target filling gap, and a repair result of the display pixel is determined.

[0009] In one embodiment, performing a laser scanning process between the color filter and the glass substrate of the display pixel to be repaired and obtaining a target filling gap after the laser scanning includes:

[0010] Determining a first laser scanning path of the display pixel to be repaired according to the color filter color resist outline of the display pixel to be repaired;

[0011] determining a first repair process parameter of the display pixel to be repaired according to the first laser scanning path;

[0012] According to the first laser scanning path and the first repair process parameters, a laser scanning process is performed between the color filter and the glass substrate of the display pixel to be repaired, and a target filling gap after the laser scanning is obtained.

[0013] In one embodiment, determining the first laser scanning path according to the color filter color resist profile of the display pixel to be repaired includes:

[0014] Determining a first target outline scanning profile of the display pixel to be repaired according to the color filter color resist outline profile of the display pixel to be repaired;

[0015] A first laser scanning path of the display pixel to be repaired is determined according to the first target shape scanning contour.

[0016] In one embodiment, the granulating process of the black matrix of the display pixel to be repaired and determining the target black particles after granulation includes:

[0017] determining a second laser scanning path of the display pixel to be repaired according to the pixel size of the display pixel to be repaired and the outline of the black matrix;

[0018] determining a second repair process parameter of the display pixel to be repaired according to the second laser scanning path;

[0019] According to the second laser scanning path and the second repair process parameters, the black matrix of the display pixel to be repaired is granulated, and the target black particles after granulation are determined.

[0020] In one embodiment, determining the second laser scanning path according to the pixel size of the display pixel to be repaired and the outline of the black matrix includes:

[0021] Determining a second target outline scanning profile of the display pixel to be repaired according to the pixel size of the display pixel to be repaired and the black matrix outline;

[0022] A second laser scanning path of the display pixel to be repaired is determined according to the second target shape scanning contour.

[0023] In one embodiment, shifting the target black particles to the target filling gap and determining a repair result of the display pixel includes:

[0024] Determining a third laser scanning path according to the black matrix outline of the display pixel to be repaired and the outline of the adjacent color filter color resist;

[0025] determining a third repair process parameter of the display pixel to be repaired according to the third laser scanning path;

[0026] The target black particles are shifted to the target filling gap according to the third laser scanning path and the third repair process parameters, and a repair result of the display pixel is determined.

[0027] In one embodiment, determining the third laser scanning path according to the black matrix outline of the display pixel to be repaired and the adjacent color filter color resist outline includes:

[0028] Determining a third target outline scanning profile of the display pixel to be repaired according to the black matrix outline and the adjacent color filter color resist outline of the display pixel to be repaired;

[0029] A third laser scanning path of the display pixel to be repaired is determined according to the third target shape scanning contour.

[0030] A display pixel repair device, comprising:

[0031] A filling gap acquisition module is used to perform laser scanning between the color filter and the glass substrate of the display pixel to be repaired, and to acquire a target filling gap after the laser scanning;

[0032] a particle determination module, connected to the filling gap acquisition module, configured to perform a granulation process on the black matrix of the display pixel to be repaired and determine target black particles after the granulation;

[0033] A pixel repair module is connected to the filling gap acquisition module and the particle determination module, and is used to shift the target black particles to the target filling gap and determine a repair result of the display pixel.

[0034] A display pixel repair device includes a memory and a processor. The memory stores a computer program. When the computer program is executed by the processor, the processor executes the method as described above.

[0035] A computer-readable storage medium stores a computer program, which implements the above method when executed by a processor.

[0036] A computer program product, when running on a terminal device, enables the terminal device to execute any one of the above methods.

[0037] The beneficial effects of the embodiments provided in this application include:

[0038] The display pixel repair method performs laser scanning between the color filter and color resist of the display pixel to be repaired and the glass substrate, and obtains a target filling gap after the laser scanning; performs granularization on the black matrix of the display pixel to be repaired, and determines the target black particles after the granulation; shifts the target black particles to the target filling gap, and determines the repair result of the display pixel until all the black particles are evenly covered on the color filter and color resist of the display pixel to be repaired, thereby constructing a screen that prevents "bright spot" light leakage, thereby achieving the purpose of darkening the pixel to be repaired, effectively improving the yield of the product after molding, and meeting higher requirements for display quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0040] Figure 1 is a schematic flow chart of a display pixel repair method according to an embodiment;

[0041] Figure 2 A schematic diagram of the specific structure of a liquid crystal color film panel in one embodiment;

[0042] Figure 3 Schematic diagram of a color filter spectrum in one embodiment.

[0043] Figure 4 102 is a schematic diagram of a specific process in one embodiment;

[0044] Figure 5 FIG. 1 is a schematic diagram of forming a target filling gap in one embodiment;

[0045] Figure 6 This is a schematic diagram of a specific flow chart of step 104 in one embodiment;

[0046] Figure 7 106 is a schematic diagram of a specific process in one embodiment;

[0047] Figure 8 is a schematic diagram of a laser scanning method in one embodiment;

[0048] Figure 9 Schematic diagram of forming a laser scanning path in one embodiment;

[0049] Figure 10 is a schematic block diagram of the structure of a display pixel repair device in one embodiment;

[0050] Figure 11 is a schematic block diagram of the specific structure of the gap filling acquisition module 20 in one embodiment;

[0051] Figure 12 is a schematic block diagram of the specific structure of the particle determination module 40 in one embodiment;

[0052] Figure 13 is a schematic block diagram of the specific structure of the pixel repair module 60 in one embodiment;

[0053] Figure 14 A schematic diagram of the structure of a display pixel repair device in one embodiment. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0056] Figure 1 , is a flow chart of a display pixel repair method in one embodiment.

[0057] In this embodiment, if Figure 1 As shown, the display pixel repair method is applied to the liquid crystal color film panel structure, and the display pixel method includes steps 102 to 106; Figure 2 As shown, an LCD color filter panel consists of a glass substrate, a black matrix (BM), color filter resists (RGB), an overcoat (OC) flat resin layer, and an alignment film (PI). The color filter resists represent the three primary colors of the display. A single color filter corresponds to a sub-pixel. Adjacent pixels are separated by a black matrix light-shielding layer, which isolates the color filter resists and prevents light mixing and leakage. During the repair process, a sub-pixel may have one or more adjacent bright spot defects.

[0058] Step 102 : performing laser scanning between the color filter and the glass substrate of the display pixel to be repaired, and obtaining a target filling gap after the laser scanning.

[0059] The display pixel to be repaired may be a defective display pixel exhibiting a "bright spot" display defect. The laser scanning process may be a process of laser scanning a portion of the structure of the display pixel to be repaired. The target gap to be filled may be a gap to be filled in a processing layer formed after the laser scanning process and located between the color filter and the glass substrate of the display pixel to be repaired.

[0060] The laser scanning process is performed between the color filter resist of the display pixel to be repaired and the glass substrate, and the target filling gap after the laser scanning is obtained. The situation includes: obtaining the outer contour of the color filter resist of the display pixel to be repaired; performing the laser scanning process between the color filter resist of the display pixel to be repaired and the glass substrate according to the outer contour of the color filter resist of the display pixel to be repaired, and obtaining the target filling gap after the laser scanning.

[0061] Step 104 , performing granularization processing on the black matrix of the display pixel to be repaired, and determining target black particles after granulation.

[0062] Granulation involves laser scanning of a portion of the black matrix structure to break it down into small black particles. The target black particles can be formed into a black medium that can be pushed into the gaps to be filled and over the display pixels to be repaired to block light.

[0063] The process of granulating the black matrix of the display pixel to be repaired and determining the target black particles after granulation includes: obtaining the outer contour of the black matrix of the display pixel to be repaired; granulating the black matrix of the display pixel to be repaired according to the outer contour of the black matrix of the display pixel to be repaired, and determining the target black particles after granulation.

[0064] Step 106 : Shift the target black particles to the target filling gap, and determine the repair result of the display pixel.

[0065] The repair result may be the result of the target black particles being pushed into the gap to be filled and covering the display pixel to be repaired, thereby blocking light. Optionally, the repair result includes a complete repair result and a partial repair result. A complete repair result may be a situation where the target black particles are pushed into the gap to be filled and completely cover the display pixel to be repaired, thereby completely blocking light. A partial repair result may be a situation where the target black particles are pushed into the gap to be filled and partially cover the display pixel to be repaired, thereby partially blocking light.

[0066] The scenario of shifting the target black particles to the target filling gap and determining the repair result of the display pixel includes: obtaining the outline of the adjacent color filter color resist of the display pixel to be repaired; shifting the target black particles to the target filling gap according to the black matrix outline and the adjacent color filter color resist outline of the display pixel to be repaired, and determining the repair result of the display pixel.

[0067] During the display pixel repair process, the outline of the color filter and color resist of the display pixel to be repaired is first obtained; according to the outline of the color filter and color resist of the display pixel to be repaired, laser scanning is performed between the color filter and color resist of the display pixel to be repaired and the glass substrate, and a target filling gap after the laser scanning is obtained; secondly, the outline of the black matrix of the display pixel to be repaired is obtained; according to the outline of the black matrix of the display pixel to be repaired, the black matrix of the display pixel to be repaired is granulated, and the target black particles after granulation are determined; then, the outline of the adjacent color filter and color resist of the display pixel to be repaired is obtained; according to the outline of the black matrix of the display pixel to be repaired and the outline of the adjacent color filter and color resist, the target black particles are shifted to the target filling gap, and the repair result of the display pixel is determined.

[0068] The display pixel repair method provided in this embodiment performs laser scanning between the color film and color resist of the display pixel to be repaired and the glass substrate, and obtains a target filling gap after the laser scanning; granulates the black matrix of the display pixel to be repaired, and determines the target black particles after granulation; shifts the target black particles to the target filling gap, and determines the repair result of the display pixel until all the black particles are evenly covered on the color film and color resist of the display pixel to be repaired, thereby constructing a screen that prevents "bright spot" light leakage and achieves the purpose of darkening the pixel to be repaired, effectively improving the yield of the product after molding, and meeting higher requirements for display quality.

[0069] It should be noted that in the specific implementation, there are three types of display pixel bright spots to be repaired, R / G / B. According to the principle of liquid crystal display, the RGB color film color resist material will absorb and transmit light in different bands. When choosing to repair R / G / B different pixel bright spots in the laser light source, it is necessary to consider the transmittance of the color film color resist of each pixel to avoid high-transmittance band laser directly transmitting to the lower layer of the color film and causing damage to the lower layer, which will also fail to achieve the purpose of repair.

[0070] like Figure 3As shown in the figure, the R (red), G (green), and B (blue) areas (darker colors) in the color filter spectrum diagram represent the wavelength range of the color filter color resist transmitted light. It can be seen that the R color resist range is between 600nm and 680nm, the G color resist range is between 510nm and 550nm, and the B color resist range is between 440nm and 480nm. When selecting a repair laser, the high transmittance range of the color filter spectrum itself should be avoided, and other bands with strong absorption should be considered as processing wavelengths. According to the transmittance curve trend in the attached figure, the R pixel has low transmittance in the range of 450nm to 560nm, and the G / B pixel has low transmittance in the range of 620nm to 680nm, which can be used as a reference for selection; the same RGB color resist will also have low transmittance in the ultraviolet band below 400nm, but considering that the high energy density of the ultraviolet laser can stimulate specific chemical bond damage, it is highly destructive to the polarizing film on the substrate and the internal film material, which is obviously not conducive to selection; since it is not possible to obtain any laser wavelength, considering the versatility of the laser and the range of the repairable wavelength, for example, for the selection of laser wavelength: the R pixel repair adopts a wavelength of 447nm, and the G / B pixel repair adopts a wavelength of 671nm to avoid the spectral range of high transmittance of the color resist. In other embodiments, other laser wavelengths can also be selected according to the spectral characteristics of the product material.

[0071] In the embodiment, the laser only acts on a specific repair layer. Under the condition of avoiding causing damage to the underlying structure, the laser beam penetration ability must also be considered in the selection of the laser. Generally speaking, the high-frequency nanosecond laser beam with high peak power and strong penetration is obviously not conducive to the repair process. The peak power of the focused spot pulse formed by the low-frequency nanosecond laser beam is relatively low, which can repair the bright spot defect pixels without easily damaging other film layers. Therefore, the low-frequency nanosecond laser is more suitable for the repair process.

[0072] Figure 4 , which is a specific flow chart of step 102 in one embodiment.

[0073] In this embodiment, if Figure 4 As shown, step 102 includes sub-steps 402 to 406 .

[0074] In sub-step 402 , a first laser scanning path of the display pixel to be repaired is determined according to the color filter and color resist profile of the display pixel to be repaired.

[0075] The scenario of determining the first laser scanning path according to the color filter and color resist outer contour of the display pixel to be repaired includes: determining a first target outer contour scanning contour of the display pixel to be repaired according to the color filter and color resist outer contour of the display pixel to be repaired; and determining the first laser scanning path of the display pixel to be repaired according to the first target outer contour scanning contour.

[0076] The first target scanning profile can be formed based on the color filter and color resist profile of the display pixel to be repaired, and can reflect the maximum range of laser scanning between the color filter and color resist of the display pixel to be repaired and the glass substrate. The first laser scanning path can be a planned path for laser scanning between the color filter and color resist of the display pixel to be repaired and the glass substrate.

[0077] Determining a first target outer shape scanning profile of the display pixel to be repaired based on the outer shape contour of the color film and color resist of the display pixel to be repaired; determining a first laser scanning path of the display pixel to be repaired based on the first target outer shape scanning profile specifically includes: obtaining graphic information of the display pixel to be repaired, drawing an outer shape scanning profile (i.e., the first target outer shape scanning profile) of the same size and shape based on the outer shape contour of the color film and color resist of the display pixel to be repaired; and filling in an appropriate scanning line spacing and scanning direction based on the obtained outer shape scanning profile to determine the first laser scanning path of the display pixel to be repaired.

[0078] In sub-step 404 , first repair process parameters of the display pixel to be repaired are determined according to the first laser scanning path.

[0079] The case of determining the first repair process parameter of the display pixel to be repaired according to the first laser scanning path includes: determining the laser process parameter and laser scanning energy corresponding to the first laser scanning path according to the first laser scanning path.

[0080] Laser process parameters include laser scanning speed, laser focus spot size, laser repetition rate, and number of laser scans. Laser scanning speed refers to the speed at which the laser scans during processing; laser scanning energy refers to the energy required for repair during processing, which controls the intensity and depth of the laser. Laser repetition rate refers to the number of pulses triggered per second; and number of laser scans refers to the number of times the repair process is repeated.

[0081] In sub-step 406 , laser scanning is performed between the color filter and the glass substrate of the display pixel to be repaired according to the first laser scanning path and the first repair process parameters, and a target filling gap after the laser scanning is obtained.

[0082] The laser scanning process is performed between the color filter and the color resist of the display pixel to be repaired and the glass substrate according to the first laser scanning path and the first repair process parameters, and a target filling gap after the laser scanning is obtained. The situation includes: according to the obtained laser process parameters and laser scanning energy, the laser is focused on the processing layer (such as a planarization resin layer) area between the color filter and the color resist of the display pixel to be repaired and the glass substrate until the processing layer area is modified and melted to form the target filling gap.

[0083] It should be noted that if Figure 5As shown, it is best to form a cavity gap with the entire color filter color resist. The specific manifestation is the air gap formed by the separation of the film layer on the left part of the figure, and the right part is not completely separated and needs repeated scanning and repair. If there are still some small areas where the gap cannot be completely formed after completing the step 102 process in the implementation, it is generally caused by product impurities or uneven coating with height differences. For example, it can be solved by the following methods. First, in the stage of step 102, the number of scans is increased without causing bubbles, the power is appropriately increased, the scanning spacing and other optimization directions are reduced; second, the number of scans is increased from step 104 to step 106, and the stress accumulated by the black matrix is used to expand the film layer to obtain a gap.

[0084] By analyzing the outer contours of the color filter and color resist of the display pixel to be repaired, a first laser scanning path for laser scanning processing between the color filter and color resist of the display pixel to be repaired and the glass substrate is successively obtained, and appropriate first repair process parameters are matched according to the obtained first laser scanning path. Laser scanning processing is then performed according to the obtained first laser scanning path and the first repair process parameters, thereby ensuring the accuracy of the target filling gap after laser scanning.

[0085] Figure 6 , which is a specific flow chart of step 104 in one embodiment.

[0086] In this embodiment, if Figure 6 As shown, step 104 includes sub-steps 602 to 606 .

[0087] In sub-step 602 , a second laser scanning path of the display pixel to be repaired is determined according to the pixel size of the display pixel to be repaired and the outline of the black matrix.

[0088] The scenario of determining the second laser scanning path based on the pixel size of the display pixel to be repaired and the black matrix outline includes: determining the second target outline scanning outline of the display pixel to be repaired based on the pixel size of the display pixel to be repaired and the black matrix outline; determining the second laser scanning path of the display pixel to be repaired based on the second target outline scanning outline.

[0089] The second target scanning profile may be formed based on the pixel size of the display pixel to be repaired and the black matrix profile, and may reflect the maximum range of the black matrix granulation process for the display pixel to be repaired. The second laser scanning path may be a planned path for the black matrix granulation process for the display pixel to be repaired.

[0090] Based on the pixel size of the display pixel to be repaired and the black matrix outline, a second target outline scanning outline of the display pixel to be repaired is determined; based on the second target outline scanning outline, a specific situation of determining the second laser scanning path of the display pixel to be repaired includes: obtaining graphic information of the display pixel to be repaired and size information of the display pixel to be repaired, and using the black matrix outline of the display pixel to be repaired as the upper limit, drawing an outline scanning outline (i.e., the second target outline scanning outline) with the same shape and a size greater than or equal to 1.5 times the size of the display pixel to be repaired; and filling in the appropriate scanning line spacing and scanning direction based on the obtained outline scanning outline to determine the second laser scanning path of the display pixel to be repaired.

[0091] In sub-step 604 , second repair process parameters of the display pixel to be repaired are determined according to the second laser scanning path.

[0092] The case of determining the second repair process parameters of the display pixel to be repaired according to the second laser scanning path includes: determining the laser process parameters and laser scanning energy corresponding to the second laser scanning path according to the second laser scanning path.

[0093] In sub-step 606 , the black matrix of the display pixel to be repaired is granulated according to the second laser scanning path and the second repair process parameters, and target black particles after granulation are determined.

[0094] According to the second laser scanning path and the second repair process parameters, the black matrix of the display pixel to be repaired is granulated, and the target black particles after granulation are determined, including: according to the obtained laser process parameters and laser scanning energy, the laser is focused on the black matrix area of the display pixel to be repaired until the resin material in the upper layer of the black matrix area decomposes to form fine light-shielding powder, i.e., the target black particles.

[0095] By analyzing the outer contour of the black matrix of the display pixel to be repaired, a second laser scanning path for laser scanning the black matrix of the display pixel to be repaired is successively obtained, and appropriate second repair process parameters are matched according to the obtained second laser scanning path. Laser scanning is then performed according to the obtained second laser scanning path and the second repair process parameters, thereby ensuring the accuracy of the target black particles after granulation.

[0096] Figure 7 , which is a specific flow chart of step 106 in one embodiment.

[0097] In this embodiment, if Figure 7 As shown, step 106 includes sub-steps 702 to 706 .

[0098] In sub-step 702 , a third laser scanning path is determined according to the black matrix outline of the display pixel to be repaired and the outline of the adjacent color filter color resist.

[0099] The scenarios of determining the third laser scanning path based on the black matrix outline and the adjacent color filter color resist outline of the display pixel to be repaired include: determining the third target outline scanning outline of the display pixel to be repaired based on the black matrix outline and the adjacent color filter color resist outline of the display pixel to be repaired; and determining the third laser scanning path of the display pixel to be repaired based on the third target outline scanning outline.

[0100] The third target scanning profile can be formed based on the black matrix profile of the display pixel to be repaired and the adjacent color filter color resist profile, and can reflect the maximum range of laser scanning processing of target black particles in the black matrix of the display pixel to be repaired. The third laser scanning path can be a planned path for laser scanning processing of target black particles in the black matrix of the display pixel to be repaired.

[0101] A third target outer shape scanning profile of the display pixel to be repaired is determined based on the outer shape profile of the black matrix and the outer shape profile of the adjacent color filter and color resist of the display pixel to be repaired; and a specific situation of determining the third laser scanning path of the display pixel to be repaired based on the third target outer shape scanning profile includes: obtaining graphic information of the display pixel to be repaired, using the outer shape profile of the adjacent color filter and color resist of the display pixel to be repaired as the upper limit, drawing an outer shape scanning profile (i.e., the third target outer shape scanning profile) that has the same shape and is larger than the second target outer shape scanning profile; and filling in the appropriate scanning line spacing and scanning direction based on the obtained outer shape scanning profile to determine the third laser scanning path of the display pixel to be repaired.

[0102] In sub-step 704 , a third repair process parameter of the display pixel to be repaired is determined according to the third laser scanning path.

[0103] The case of determining the third repair process parameter of the display pixel to be repaired according to the third laser scanning path includes: determining the laser process parameter and laser scanning energy corresponding to the third laser scanning path according to the third laser scanning path.

[0104] In sub-step 706 , the target black particles are shifted to the target filling gap according to the third laser scanning path and the third repair process parameters, and a repair result of the display pixel is determined.

[0105] The target black particles are shifted to the target filling gap according to the third laser scanning path and the third repair process parameters, and the repair result of the display pixel is determined. The scenario includes: according to the obtained laser process parameters and laser scanning energy, the laser is focused on the target black particles in the black matrix area of the display pixel to be repaired, so that the target black particles diffuse and fill the target filling gap until the target black particles are pushed into the gap to be filled and completely cover the display pixel to be repaired to completely block the light.

[0106] By analyzing the black matrix outline and the adjacent color film color resist outline of the display pixel to be repaired, a third laser scanning path is successively obtained for laser scanning the target black particles in the black matrix of the display pixel to be repaired, and appropriate third repair process parameters are matched according to the obtained third laser scanning path. Laser scanning is then performed according to the obtained third laser scanning path and third repair process parameters, thereby ensuring that the entire black matrix area is uniformly and optimally filled with target black particles with density and flatness.

[0107] like Figure 8 Figure 2 shows two examples of laser scanning methods in embodiments of the present invention. Laser scanning is used to control the oscillation and movement of the laser beam to achieve two-dimensional planar scanning of the laser beam on the sample surface. Laser scanning can further illustrate that a galvanometer system can be used to achieve laser scanning by sequentially oscillating the laser along the path in the angular direction, or a two-dimensional axis motion platform can be used to move the processing platform in the XY direction to achieve path movement. Different laser scanning methods can be selected according to the application conditions. Figure 1: Left: Galvanometer scanning (scanning) method; Figure 2: Slit scanning method.

[0108] The left figure shows the galvanometer scan, which is characterized by being composed of a scanning galvanometer 11, a relay lens 12, and a focusing objective lens 13. Further explanation: the laser is incident on the interior of the galvanometer 101 through the light hole of the scanning galvanometer. The galvanometer has an XY direction deflection mirror that controls the deflection of the lens through a program, so that the incident laser beam moves in a trajectory on a two-dimensional plane under the action of the deflection mirror. The moving light beam then passes through the relay lens 102 to converge and shrink the light beam at the entrance pupil position of the rear objective lens 13. The size of the converged light spot satisfies the relationship of 1 / 2 pupil diameter < light spot < pupil diameter. The light beam then passes through the objective lens 13 and is focused on the desired working surface. Since the light beam is also moving after being shrunk, a preset scanning trajectory is formed on the focused processing plane. The pupil diameter is the effective aperture that limits the incident light beam, that is, the object-side light aperture of the objective lens 13; the entrance pupil position represents the position where the incident light beam just reaches the surface of the lower lens.

[0109] The right side of the figure shows that the axis motion slit scanning is characterized in that it is composed of a slit device 21, a relay lens 22, and a focusing objective lens 23. Further explanation: the laser passes through the slit device 21, and the slit device has an adjustable width size after the laser enters the slit hole. Then, the laser beam after the width is adjusted passes through the relay lens 22, which improves the beam divergence characteristics and becomes a collimated parallel light beam. Subsequently, the parallel light beam passes through the objective lens 23 for laser focusing to form a small light spot, which forms a preset moving track on the focused processing plane under the movement of the platform in the XY direction. The slit adjustment width range should meet the restriction condition of light spot < pupil diameter. At the same time, the change in slit size directly affects the size of the light spot focused by the rear objective lens. When in use, the slit size is adjusted according to the process conditions to obtain a focused light spot of appropriate size.

[0110] like Figure 9 As shown, the scanned graphics represent the actual scanning path. The size of each scanned graphic in the attached figure indicates the area to be scanned for processing. The lines are the paths for laser processing. The line arrows indicate the direction of travel, and the spacing between lines indicates the spacing for filling. Furthermore, when drawing the scanned graphics, the outer frame outline is first drawn according to the target size. The outer frame outline is used to limit the range of the scanning area. Then, spaced lines are drawn within the outer frame outline to form the scanning path and optimize the running direction of the line path. The spacing of the scanned lines is related to the spot overlap rate. The smaller the spacing, the more spots overlap per unit area, the longer the laser action time, the more relative energy, and the greater the thermal impact. Vice versa. In implementation, the settings can be optimized according to the actual process effects. There are three types of optimization of the line path direction based on the line feature type. First, bidirectional optimization: the path direction in the first position is reversed when in the second position, as shown in 'a' and 'b' in the attached figure. The adjacent lines of ''d''g'' point in opposite directions; secondly, unidirectional optimization: the path direction is always in one direction, such as the adjacent lines of ''c'''h'' in the attached figure pointing in the same direction; thirdly, cross optimization: the direction of the intersection of the two line paths can be bidirectional or unidirectional, such as the adjacent lines of ''e'''f'''i'' in the attached figure pointing in an interlaced manner; in addition to the above-mentioned type distinctions, the lines can be distinguished from the whole and can also be designed into different angles and directions according to the different contour shapes drawn, and the order of path scanning can be from left to right or from right to left and from top to bottom or from bottom to top; the description of the above scanning graphic structure should be understandable to relevant professionals, and other deformation structures can be obtained according to other embodiments.

[0111] It should be understood that, although the various steps in the above flow chart are displayed in sequence as indicated by the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least a portion of the above sub-steps may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps. It should be noted that the above different embodiments can be combined with each other.

[0112] Figure 10 , is a schematic block diagram of the structure of a display pixel repair device in one embodiment.

[0113] In this embodiment, if Figure 10 As shown, the display pixel repairing device includes a filling gap acquisition module 20 , a particle determination module 40 and a pixel repairing module 60 .

[0114] The filling gap acquisition module 20 is used to perform laser scanning between the color filter and the glass substrate of the display pixel to be repaired, and to acquire a target filling gap after the laser scanning.

[0115] The particle determination module 40 is connected to the filling gap acquisition module 20 and is used to perform granulation processing on the black matrix of the display pixel to be repaired and determine the target black particles after granulation.

[0116] The pixel repair module 60 is connected to the filling gap acquisition module 20 and the particle determination module 40 , and is used to shift the target black particles to the target filling gap and determine the repair result of the display pixel.

[0117] In this embodiment, each module is used to execute Figure 1 For details of the steps in the corresponding embodiment, please refer to Figure 1 as well as Figure 1 The relevant descriptions in the corresponding embodiments are not repeated here.

[0118] The display pixel repair device provided in this embodiment performs laser scanning between the color film and color resist of the display pixel to be repaired and the glass substrate, and obtains the target filling gap after the laser scanning; granulates the black matrix of the display pixel to be repaired, and determines the target black particles after granulation; shifts the target black particles to the target filling gap, and determines the repair result of the display pixel until all the black particles are evenly covered on the color film and color resist of the display pixel to be repaired, thereby constructing a screen that prevents the "bright spot" from leaking light, thereby achieving the purpose of darkening the pixel to be repaired, effectively improving the yield of the product after molding, and meeting higher requirements for display quality.

[0119] Figure 11 , which is a schematic block diagram of the specific structure of the filling gap acquisition module 20 in one embodiment.

[0120] In this embodiment, if Figure 11 As shown, the filling gap acquiring module 20 includes a first path determining unit 220 , a first process determining unit 240 and a filling gap acquiring unit 260 .

[0121] The first path determining unit 220 is configured to determine a first laser scanning path of the display pixel to be repaired according to an outline of the color filter and color resist of the display pixel to be repaired.

[0122] The first process determination unit 240 is connected to the first path determination unit 220 and is configured to determine first repair process parameters of the display pixel to be repaired according to the first laser scanning path.

[0123] The filling gap acquisition unit 260 is connected to the first path determination unit 220 and the first process determination unit 240, and is used to perform laser scanning processing between the color filter color resist and the glass substrate of the display pixel to be repaired according to the first laser scanning path and the first repair process parameters, and obtain the target filling gap after the laser scanning.

[0124] In this embodiment, each unit is used to perform Figure 4 For details of the steps in the corresponding embodiment, please refer to Figure 4 as well as Figure 4 The relevant descriptions in the corresponding embodiments are not repeated here.

[0125] Figure 12 , which is a schematic block diagram of the specific structure of the particle determination module 40 in one embodiment.

[0126] In this embodiment, if Figure 12 As shown, the particle determination module 40 includes a second path determination unit 420 , a second process determination unit 440 and a particle determination unit 460 .

[0127] The second path determining unit 420 is configured to determine a second laser scanning path for the display pixel to be repaired according to the pixel size of the display pixel to be repaired and the outline of the black matrix.

[0128] The second process determination unit 440 is connected to the second path determination unit 420 and is configured to determine a second repair process parameter of the display pixel to be repaired according to the second laser scanning path.

[0129] The particle determination unit 460 is connected to the second process determination unit 440 and the second path determination unit 420, and is used to granulate the black matrix of the display pixel to be repaired according to the second laser scanning path and the second repair process parameters, and determine the target black particles after granulation.

[0130] In this embodiment, each unit is used to perform Figure 6 For details of the steps in the corresponding embodiment, please refer to Figure 6 as well as Figure 6 The relevant descriptions in the corresponding embodiments are not repeated here.

[0131] Figure 13 , which is a schematic block diagram of the specific structure of the pixel repair module 60 in an embodiment.

[0132] In this embodiment, if Figure 13 As shown, the pixel repair module 60 includes a third path determination unit 620 , a third process determination unit 640 and a pixel repair unit 660 .

[0133] The third path determining unit 620 is configured to determine a third laser scanning path according to the black matrix outline of the display pixel to be repaired and the outline of the adjacent color filter color resist.

[0134] The third process determination unit 640 is connected to the third path determination unit 620 and is configured to determine a third repair process parameter of the display pixel to be repaired according to the third laser scanning path.

[0135] The pixel repair unit 660 is connected to the number constraint acquisition unit 620 and the action trajectory determination unit 640, and is used to shift the target black particles to the target filling gap according to the third laser scanning path and the third repair process parameters, and determine the repair result of the display pixel.

[0136] In this embodiment, each unit is used to perform Figure 6 For details of the steps in the corresponding embodiment, please refer to Figure 6 as well as Figure 6 The relevant descriptions in the corresponding embodiments are not repeated here.

[0137] The division of the various modules in the above-mentioned display pixel repair device is only for illustration. In other embodiments, the display pixel repair device can be divided into different modules as needed to complete all or part of the functions of the above-mentioned display pixel repair device.

[0138] The specific definitions of the display pixel repair device can be found in the definitions of the display pixel repair method above and will not be repeated here. Each module in the display pixel repair device described above may be implemented in whole or in part through software, hardware, or a combination thereof. Each of the modules described above may be embedded in or independent of the processor in the display pixel repair device in hardware form, or may be stored in memory in the display pixel repair device in software form, so that the processor can call and execute the corresponding operations of each module.

[0139] Figure 14 , is a schematic structural diagram of a display pixel repair device in one embodiment.

[0140] In this embodiment, if Figure 14 As shown, the display pixel repair device includes a memory A1 and a processor A2; it may also include a display screen A3, a communications interface (Communications Interface) and a bus. Optionally, the display pixel repair device may be a laser display pixel repair device.

[0141] Among them, the memory A1, processor A2, display screen A3 and communication interface can communicate with each other through a bus; the display screen A3 is set to display the user operation interface preset in the initial setting mode, and the display screen A3 can also display the process control window; the communication interface can transmit information; the memory A1 stores a computer program, and the processor A2 can call the logical instructions in the memory A1 to execute the method in the above embodiment.

[0142] In addition, the logic instructions in the memory A1 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent workpiece.

[0143] Memory A1, as a computer-readable storage medium, can be configured to store software programs or computer-executable programs, such as program instructions or modules corresponding to the methods in the embodiments of the present application. Processor A2 executes the software programs, instructions, or modules stored in memory A1 to perform functional applications and data processing, thereby implementing the methods in the embodiments described above.

[0144] Memory A1 includes a program storage area and a data storage area. The program storage area can store an operating system and at least one application required for a function; the data storage area can store data generated based on the use of the terminal device. Memory A1 can also include high-speed random access memory and non-volatile memory.

[0145] Processor A2 can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0146] The present application also provides a computer-readable storage medium, one or more non-volatile computer-readable storage media containing computer-executable instructions, which, when executed by one or more processors, cause the processors to perform the method of the above embodiment.

[0147] An embodiment of the present application further provides a computer program product, which, when executed on a terminal device, enables the terminal device to execute the method in the above embodiment.

[0148] The display pixel repair method, device, equipment and readable storage medium provided in the above embodiments perform laser scanning between the color film color resist of the display pixel to be repaired and the glass substrate, and obtain the target filling gap after laser scanning; granulate the black matrix of the display pixel to be repaired, and determine the target black particles after granulation; shift the target black particles to the target filling gap, and determine the repair result of the display pixel until all the black particles are evenly covered on the color film color resist of the display pixel to be repaired, thereby constructing a screen that prevents "bright spot" light leakage and achieves the purpose of darkening the pixel to be repaired, effectively improving the yield of the product after molding, meeting higher requirements for display quality, and having important economic value and promotional practical value.

[0149] As used herein, any reference to memory, storage, database, or other medium may include nonvolatile and / or volatile memory. Nonvolatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM), which serves as an external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM).

[0150] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0151] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A display pixel repair method, characterized in that: include: Performing laser scanning between the color filter and the glass substrate of the display pixel to be repaired, and obtaining a target filling gap after the laser scanning; performing granulation processing on the black matrix of the display pixel to be repaired, and determining target black particles after the granulation; The target black particles are shifted to the target filling gap, and a repair result of the display pixel is determined.

2. The display pixel repair method according to claim 1, wherein: The laser scanning process is performed between the color filter and the glass substrate of the display pixel to be repaired, and the target filling gap after the laser scanning is obtained, including: Determining a first laser scanning path of the display pixel to be repaired according to the color filter color resist profile of the display pixel to be repaired; determining a first repair process parameter of the display pixel to be repaired according to the first laser scanning path; According to the first laser scanning path and the first repair process parameters, a laser scanning process is performed between the color filter and the glass substrate of the display pixel to be repaired, and a target filling gap after the laser scanning is obtained.

3. The display pixel repair method according to claim 2, wherein: The step of determining the first laser scanning path according to the color filter color resist profile of the display pixel to be repaired includes: Determining a first target outline scanning profile of the display pixel to be repaired according to the color filter color resist outline profile of the display pixel to be repaired; A first laser scanning path of the display pixel to be repaired is determined according to the first target shape scanning contour.

4. The display pixel repair method according to claim 1, wherein: The granulating process of the black matrix of the display pixel to be repaired and determining the target black particles after the granulation includes: determining a second laser scanning path of the display pixel to be repaired according to the pixel size of the display pixel to be repaired and the outline of the black matrix; determining a second repair process parameter of the display pixel to be repaired according to the second laser scanning path; According to the second laser scanning path and the second repair process parameters, the black matrix of the display pixel to be repaired is granulated, and the target black particles after granulation are determined.

5. The display pixel repair method according to claim 4, characterized in that: The step of determining a second laser scanning path according to the pixel size of the display pixel to be repaired and the outline of the black matrix includes: Determining a second target outline scanning profile of the display pixel to be repaired according to the pixel size of the display pixel to be repaired and the black matrix outline; A second laser scanning path of the display pixel to be repaired is determined according to the second target shape scanning contour.

6. The display pixel repair method according to claim 1, wherein: The step of shifting the target black particles to the target filling gap and determining a repair result of the display pixel includes: Determining a third laser scanning path according to the black matrix outline of the display pixel to be repaired and the outline of the adjacent color filter color resist; determining a third repair process parameter of the display pixel to be repaired according to the third laser scanning path; The target black particles are shifted to the target filling gap according to the third laser scanning path and the third repair process parameters, and a repair result of the display pixel is determined.

7. The display pixel repair method according to claim 6, wherein: The step of determining a third laser scanning path according to the black matrix outline of the display pixel to be repaired and the adjacent color filter color resist outline comprises: Determining a third target outline scanning profile of the display pixel to be repaired according to the black matrix outline and the adjacent color filter color resist outline of the display pixel to be repaired; A third laser scanning path of the display pixel to be repaired is determined according to the third target shape scanning contour.

8. A display pixel repair device, characterized in that: include: A filling gap acquisition module is used to perform laser scanning between the color filter and the glass substrate of the display pixel to be repaired, and to acquire a target filling gap after the laser scanning; a particle determination module, connected to the filling gap acquisition module, configured to perform a granulation process on the black matrix of the display pixel to be repaired and determine target black particles after the granulation; A pixel repair module is connected to the filling gap acquisition module and the particle determination module, and is used to shift the target black particles to the target filling gap and determine a repair result of the display pixel.

9. A display pixel repair device, characterized in that: The method comprises a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the processor executes the method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

Images