Display panel pigment layer foreign matter repairing method, device and equipment and storage medium

Abstract

The invention discloses a display panel pigment layer foreign matter repairing method, device and equipment and a storage medium, and the method comprises the steps: after a pigment layer is arranged on a glass substrate, detecting a target pixel of a foreign matter in the pigment layer, determining the pixel coordinate of the target pixel, and detecting the height of the foreign matter in the target pixel; controlling a foreign matter removing device to remove foreign matters in the target pixels according to the pixel coordinates and the foreign matter heights, controlling a pigment supplementing device to supplement pigments to the target pixels after foreign matter removal according to the pixel coordinates, and detecting the thickness of the pigments to ensure that the thickness of a pigment layer after pigment supplementing is within an allowable range; pixel points with foreign matters are detected after the pigment layer is arranged on the glass substrate, and pigments are supplemented after the foreign matters are removed, so that the pigment layer of the pixel supplemented with the pigments is free of heterogeneity, the foreign matters can be found and repaired in time, pixel electrode short circuit and poor dark spots caused by the foreign matters of the pigment layer of the pixel are reduced, and the pixel quality is improved. And the yield of the display panel is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of display panel manufacturing, and in particular to a method, device, equipment and storage medium for repairing foreign matter in a pigment layer of a display panel. Background Art

[0002] like Figure 1 As shown, in the display panel, on the glass substrate 1, from bottom to top, there are a pigment layer (R, G, B), a transparent optical layer 2, a cathode 3, a light-emitting layer 4, and an anode 5. The pigment layer, anode, light-emitting layer, and cathode form an R, G, B pixel array on the glass substrate in units of pixels.

[0003] When a certain pixel needs to be lit, such as pixel G, the light-emitting layer between the cathode and the anode emits light under the action of the anode and cathode of pixel G, and the light passes through the pigment layer of pixel G and appears green from the front of the glass substrate.

[0004] During the production process, when foreign matter 6 is mixed into the pigment layer, if the height of the foreign matter is greater than the thickness of the pigment layer, the protruding foreign matter poses a risk of short-circuiting the anode and the cathode, or even if there is no risk of short-circuiting, the foreign matter in the pigment layer may affect the pixel display, causing the pixel display brightness to decrease or even cause dark spot defects. The prior art lacks a method for detecting and repairing foreign matter in the pigment layer after the pigment layer process is completed. Foreign matter in the pigment layer cannot be detected and repaired, resulting in anode and cathode short circuits and dark spot defects in subsequent processes. Summary of the invention

[0005] The present invention provides a method, device, equipment and storage medium for repairing foreign matter in a pigment layer of a display panel, so as to detect pixels with foreign matter defects and repair the foreign matter in the pigment layer after a pigment layer is set on a glass panel during the production process of the display panel.

[0006] In a first aspect, the present invention provides a method for repairing foreign matter in a pigment layer of a display panel, comprising:

[0007] Detecting the glass substrate after the pigment layer is provided, and determining the pixel coordinates of the target pixel, wherein the target pixel is a pixel where foreign matter exists in the pigment layer;

[0008] Detecting the height of the foreign object at the target pixel, where the height of the foreign object is the distance from the pigment layer to the highest point of the foreign object;

[0009] Controlling a foreign matter removal device to remove foreign matter in the target pixel according to the pixel coordinates and the height of the foreign matter;

[0010] Controlling the pigment replenishing device to replenish pigment to the target pixel after the foreign matter is removed according to the pixel coordinates;

[0011] Detect the thickness of the pigment layer after pigment replenishment;

[0012] Determining whether the thickness is within a preset range;

[0013] If so, make sure to complete the foreign body defect repair;

[0014] If not, the foreign matter removing device is controlled to correct the thickness of the pigment layer according to the pixel coordinates, and the process returns to the step of detecting the thickness of the pigment layer after the pigment is replenished.

[0015] In a second aspect, the present invention provides a device for repairing foreign matter in a pigment layer of a display panel, comprising:

[0016] A foreign matter detection module is used to detect the glass substrate after the pigment layer is set, and determine the pixel coordinates of the target pixel, where the target pixel is a pixel where the foreign matter exists in the pigment layer;

[0017] A foreign body height detection module, used to detect the foreign body height of the target pixel, wherein the foreign body height is the distance from the pigment layer to the highest point of the foreign body;

[0018] A foreign matter removal module, used for controlling a foreign matter removal device to remove foreign matter in the target pixel according to the pixel coordinates and the height of the foreign matter;

[0019] A pigment replenishing module, used for controlling the pigment replenishing device to replenish pigment to the target pixel after the foreign matter is removed according to the pixel coordinates;

[0020] A pigment thickness detection module, used to detect the thickness of the pigment layer after the pigment is replenished;

[0021] A thickness determination module, used to determine whether the thickness is within a preset range, if so, execute a repair completion confirmation module, if not, execute a pigment layer thickness correction module;

[0022] A repair completion confirmation module is used to confirm that the foreign body defect repair is completed;

[0023] The pigment layer thickness correction module is used to control the foreign matter removal device to correct the thickness of the pigment layer according to the pixel coordinates and return to the pigment thickness detection module.

[0024] In a third aspect, the present invention provides an electronic device, the electronic device comprising:

[0025] at least one processor; and

[0026] a memory communicatively connected to the at least one processor; wherein,

[0027] The memory stores a computer program that can be executed by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the display panel pigment layer foreign matter repair method described in any one of the first aspects of the present invention.

[0028] In a fourth aspect, the present invention provides a computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable a processor to implement the display panel pigment layer foreign matter repair method described in any one of the first aspects of the present invention when executed.

[0029] According to the embodiment of the present invention, after a paint layer is set on a glass substrate, target pixels where foreign matter exists in the paint layer are detected, and the pixel coordinates of the target pixels are determined, as well as the height of the foreign matter in the target pixels are detected, and a foreign matter removal device is controlled to remove the foreign matter in the target pixels according to the pixel coordinates and the height of the foreign matter, and a paint replenishing device is controlled to replenish paint to the target pixels after the foreign matter is removed according to the pixel coordinates, and the thickness of the paint is detected to ensure that the thickness of the paint layer after the replenishment is within an allowable range. This achieves the detection of pixels where foreign matter exists after a paint layer is set on a glass substrate, and the replenishment of paint after the foreign matter is removed, so that the paint layer of the pixel after the replenishment is free of foreign matter, foreign matter can be discovered and repaired in a timely manner, pixel electrode short circuits and dark spot defects caused by foreign matter in the paint layer of pixels are reduced, and the yield of the display panel is improved.

[0030] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a schematic diagram of the structure of the display panel;

[0033] Figure 2 It is a flow chart of a method for repairing foreign matter in a pigment layer of a display panel provided in the first embodiment of the present invention;

[0034] Figure 3 It is a schematic diagram of removing foreign matter from the pigment layer;

[0035] Figure 4 This is a flow chart of a method for repairing foreign matter in a pigment layer of a display panel provided in Embodiment 2 of the present invention;

[0036] Figure 5 It is a schematic diagram of detecting foreign matter;

[0037] Figure 6 is a schematic diagram of the starting grinding height;

[0038] Figure 7 It is a structural schematic diagram of a device for repairing foreign matter in a pigment layer of a display panel provided in a third embodiment of the present invention;

[0039] Figure 8 It is a schematic diagram of the structure of an electronic device provided in Embodiment 4 of the present invention. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0041] Embodiment 1

[0042] Figure 2 This is a flow chart of a method for repairing foreign matter in a display panel pigment layer provided in the first embodiment of the present invention. This embodiment is applicable to the case of removing foreign matter in a display panel pigment layer. The method can be performed by a display panel pigment layer foreign matter repair device. The display panel pigment layer foreign matter repair device can be implemented in the form of hardware and / or software and can be configured in an electronic device. Figure 2 As shown, the display panel pigment layer foreign body repair method includes:

[0043] S201, detecting a glass substrate after a pigment layer is provided, and determining pixel coordinates of a target pixel, where the target pixel is a pixel where foreign matter exists in the pigment layer.

[0044] like Figure 3 As shown in a, when the display panel is produced, a pigment layer is first set on the glass substrate 1. The pigment layer may include a red (R) pigment layer, a green (G) pigment layer and a blue (B) pigment layer according to different pixel colors. After the pigment layers of all pixels are set on the glass substrate 1, the glass substrate can be inspected to determine the target pixels where foreign matter exists in the pigment layer, and determine the pixel coordinates of the target pixels, wherein the pixel coordinates may be the position of the pixels in rows and columns in the display panel.

[0045] In one embodiment, since the thickness of the pigment layer is small, when foreign matter falls into the pigment layer, the foreign matter usually protrudes from the surface of the pigment layer. Figure 3 As shown in a, when the foreign matter 6 is in the green (G) pigment layer, the highest point of the foreign matter 6 is much higher than the upper surface of the green (G) pigment layer. The height of the green (G) pixel can be detected by a detection device, and the height can be the distance from the upper surface of the glass substrate 1 to the highest point of the green pigment layer (including the foreign matter). If the height is greater than the preset thickness of the green (G) pigment layer, it is determined that there is a foreign matter in the green (G) pigment layer, and the pixel is determined as a target pixel, and the row and column of the target pixel in the display panel are determined as pixel coordinates.

[0046] In another embodiment, since the glass substrate is transparent, the glass substrate can be placed on a backlight device. The light emitted by the backlight device passes through the pigment layer and then is emitted from the front side of the glass substrate. The image acquisition device can be used to capture an image of the display area of ​​the glass substrate and determine the brightness of each pixel in the image. If there is foreign matter in the pigment layer of the pixel, the light of the backlight device will be weakened after passing through the pigment layer or even fail to transmit light from the pixel. Therefore, pixels with brightness less than a preset brightness threshold can be determined as target pixels with foreign matter in the pigment layer, and the row and column of the target pixel in the display panel can be determined as pixel coordinates.

[0047] S202, detecting the height of the foreign matter at the target pixel, where the height of the foreign matter is the distance from the pigment layer to the highest point of the foreign matter.

[0048] When the foreign object protrudes from the pigment layer, the height of the foreign object may refer to the distance from the upper surface of the pigment layer to the highest point of the foreign object. When the foreign object is completely within the pigment layer, the height of the foreign object may be considered to be 0, that is, the highest point of the foreign object is the upper surface of the pigment layer.

[0049] For target pixels where foreign matter protrudes outside the pigment layer, the height of the foreign matter relative to the upper surface of the pigment layer can be detected by a contact displacement sensor.

[0050] S203 , controlling a foreign matter removal device to remove foreign matter in the target pixel according to the pixel coordinates and the height of the foreign matter.

[0051] In one embodiment, the foreign matter removal device can be a grinder, which can first control the grinding part of the grinder to move to the position of the determined pixel coordinates, that is, move to the top of the target pixel where the foreign matter exists in the pigment layer, and determine the starting position of the grinding part according to the height of the foreign matter, and control the grinding part to start grinding from the starting position toward the target pixel until the foreign matter in the pigment layer of the target pixel is removed, such as grinding through the pigment layer, so as to remove the foreign matter from the pigment layer of the target pixel.

[0052] like Figure 3As shown in b, after the grinding part of the grinding device 7 moves to the top of the target pixel, grinding is performed from above the foreign matter toward the pigment layer of the target pixel until the pigment layer is worn through.

[0053] S204, controlling the pigment replenishing device to replenish pigment to the target pixel after the foreign matter is removed according to the pixel coordinates.

[0054] Specifically, holes are formed after the foreign matter is removed from the pigment layer, and the holes leak light. The holes can be filled with pigment. Exemplarily, the pigment replenishing device is provided with a nozzle 8, and the nozzle 8 can be controlled to align with the position corresponding to the pixel coordinates, and then the pigment replenishing device is controlled to fill the holes formed after the foreign matter is removed from the pigment layer from the nozzle 8. Figure 3 The schematic diagram of the pigment layer after being filled with pigment is shown in c. The pigment layer after being filled with pigment not only removes the foreign matter 6, but also avoids the formation of holes and light leakage after the foreign matter 6 is removed.

[0055] S205, detecting the thickness of the pigment layer after the pigment is replenished.

[0056] The thickness of the pigment layer may be the distance from the upper surface of the glass substrate to the upper surface of the pigment layer. The thickness of the pigment layer may be detected by a contact displacement sensor. In one example, multiple thicknesses of the pigment layer may be detected, and the average of the multiple thicknesses may be taken as the final thickness.

[0057] S206: Determine whether the thickness is within a preset range.

[0058] The preset range can be a pre-configured allowable paint layer thickness range. The detected thickness can be compared with the preset range. If the detected thickness is within the preset range, it is determined that the thickness of the paint layer after the nozzle fills the paint layer is qualified, and S207 can be executed. If the detected thickness is outside the preset range, it is determined that the paint layer thickness is unqualified, and S208 can be executed.

[0059] S207, confirming that the foreign body defect repair is completed.

[0060] If the detected thickness is within the preset range, it is determined that the thickness of the paint layer is qualified after the nozzle fills the paint layer, and the foreign matter repair is completed.

[0061] S208, controlling the foreign matter removal device to correct the thickness of the pigment layer according to the pixel coordinates.

[0062] In one example, if the thickness is less than the lower limit of the preset range, it means that the nozzle has not filled enough pigment into the pigment layer, and the nozzle can continue to be used to fill the pigment layer. If the thickness is greater than the upper limit of the preset range, it means that the nozzle has filled too much pigment into the pigment layer, and a foreign matter removal device can be used to remove excess pigment to correct the thickness of the pigment layer and return to S205.

[0063] The embodiment of the present invention detects target pixels where foreign matter exists in the pigment layer after the pigment layer is set on the glass substrate, determines the pixel coordinates of the target pixels, and detects the height of the foreign matter in the target pixels, controls a foreign matter removal device to remove the foreign matter in the target pixels according to the pixel coordinates and the height of the foreign matter, and controls a pigment replenishing device to replenish pigment to the target pixels after the foreign matter is removed according to the pixel coordinates, and detects the pigment thickness to ensure that the thickness of the pigment layer after the replenishment is within an allowable range, thereby achieving the detection of pixels where foreign matter exists after the pigment layer is set on the glass substrate, and replenishing pigment after the foreign matter is removed, so that the pigment layer of the pixel after the replenishment is free of foreign matter, and foreign matter can be discovered and repaired in time, thereby reducing pixel electrode short circuits and dark spot defects caused by foreign matter in the pigment layer of the pixel, and improving the yield of the display panel.

[0064] Embodiment 2

[0065] Figure 4 This is a flow chart of a method for repairing foreign matter in a pigment layer of a display panel provided in the second embodiment of the present invention. The embodiment of the present invention is optimized on the basis of the above-mentioned first embodiment. Figure 4 As shown, the display panel pigment layer foreign body repair method includes:

[0066] S401, detecting the height of each pixel on the glass substrate.

[0067] In this embodiment, a contact displacement sensor can be used to detect the height of each pixel. The glass substrate in this embodiment refers to the glass substrate after the pixel pigment layer is set. The height of the pixel can refer to the height of the highest point of the pixel on the glass substrate, that is, the distance from the upper surface of the glass substrate to the upper surface of the pixel pigment layer (including the height of foreign matter). Figure 5 As shown in a, the contact point of the contact displacement sensor can be used to first measure on the upper surface of the glass substrate 1 and then after the reading is reset to zero, the contact point is moved to the upper surface of the green (G) pigment layer for multi-point measurement. The maximum reading measured is the height h of the pigment layer including the protruding foreign matter 6.

[0068] S402: If the height of the pixel is greater than a preset height threshold, determine that the pixel is a first target pixel, and obtain the pixel coordinates of the first target pixel.

[0069] like Figure 5 As shown in a, the height threshold h0 can be the standard thickness of the pigment layer of the pixel. If the measured height h of the pixel is greater than the height threshold h0, it is determined that there is a protruding foreign matter in the pigment layer of the pixel, and the pixel is the first target pixel. The row and column where the first target pixel is located are the pixel coordinates, which can be recorded as (h, x, y), where h is the height of the pixel, x is the column where the first target pixel is located, and y is the row where the first target pixel is located.

[0070] S403 , placing the glass substrate on the backlight device, and controlling the backlight device to emit light to illuminate the glass substrate, and collecting an image of the display area of ​​the glass substrate.

[0071] In one embodiment, when the foreign object is completely in the pigment layer, the foreign object cannot be determined by detecting the height of the pixel by the contact displacement sensor, and it is necessary to determine whether there is a pixel where the foreign object is completely in the pigment layer by image recognition technology. Specifically, Figure 5 As shown in b, the glass substrate 1 can be placed on the backlight device, and the backlight device can be driven to emit light, so that the light of the backlight device passes through the pigment layer and then is emitted from the front of the glass substrate 1. A picture can be displayed on the front of the glass substrate 1, and an image acquisition device can be used to capture an image of the picture displayed on the glass substrate 1. It should be noted that since only the pigment layer is set on the glass substrate, the displayed picture has no specific content, and only the corresponding color picture can be displayed through the pigment layer.

[0072] Optionally, an image acquisition device with the same resolution as that of the display panel may be used to acquire an image of the display area of ​​the display panel, so that the pixels on the image correspond one-to-one to the pixels on the glass substrate.

[0073] S404: Determine a second target pixel based on the image, and determine pixel coordinates of the second target pixel according to image coordinates of the second target pixel in the image.

[0074] After the image is acquired, the brightness of each pixel in the image except the first target pixel can be determined to determine whether the brightness is less than a preset brightness threshold. If so, the pixel whose brightness is less than the brightness threshold is determined to be the second target pixel. It should be noted that due to the different transmittances of different pigment layers, different brightness thresholds can be set for pigment layers of different colors. For example, brightness thresholds are set for red (R), green (G), and blue (B), respectively, and then the brightness threshold is determined according to the column where the pixel is located in the image. For example, if the first column of pixels is red, the red brightness threshold is used to compare with the brightness of the pixel. If it is less than the brightness threshold, it is determined that there is a foreign matter in the pigment layer, causing the brightness to decrease. The pixel is the second target pixel. The row and column of the pixel in the image are the row and column where the second target pixel is located in the display panel, that is, the pixel coordinates of the second target pixel. The second target pixel can be recorded as (0, x, y), where 0 indicates that the foreign matter is completely in the pigment layer, x is the column where the second target pixel is located, and y is the row where the second target pixel is located.

[0075] S405, detecting the height of the foreign matter at the target pixel, where the height of the foreign matter is the distance from the pigment layer to the highest point of the foreign matter.

[0076] The height of the foreign object may refer to the distance from the upper surface of the pigment layer to the highest point of the foreign object. When the foreign object protrudes from the pigment layer, that is, when the target pixel is the first target pixel, since the height h of the first target pixel has been detected, the foreign object height h1 may be the difference between the height h of the first target pixel and the thickness h0 of the pigment layer of the first target pixel.

[0077] When the foreign matter is completely within the pigment layer, that is, the target pixel is the second target pixel, the height of the foreign matter can be considered to be zero.

[0078] S406, controlling the grinding part of the foreign matter removal device to move so that the coordinates of the grinding part are equal to the pixel coordinates.

[0079] The foreign matter removal device of this embodiment can be a grinder, which is provided with a grinding part. The movement of the grinding part can be controlled according to the pixel coordinates of the first target pixel and the second target pixel, so that the coordinates of the grinding part are equal to the pixel coordinates, that is, the grinding part is controlled to be located above the first target pixel or the second target pixel where the foreign matter exists in the pigment layer.

[0080] S407, initializing the starting grinding height of the grinding part, wherein if the target pixel is the first target pixel, the starting grinding height is equal to the height of the foreign matter, and if the target pixel is the second target pixel, the starting grinding height is the height of the upper surface of the second target pixel.

[0081] In this embodiment, it is necessary to determine the starting grinding height of the grinding part according to the height of the foreign matter, so that the grinding part can grind the foreign matter from the beginning to improve the grinding efficiency. If the target pixel is the first target pixel, that is, the target pixel where the foreign matter protrudes from the upper surface of the pigment layer, the starting grinding height is equal to the height of the foreign matter, and the height of the foreign matter is the distance from the upper surface of the pigment layer to the highest point of the foreign matter. Figure 6 As shown in a, the height of the foreign matter is h1. When the starting grinding height is equal to the height h1 of the foreign matter, the grinding part is located directly above the first target pixel and at least higher than the foreign matter, so that the grinding part starts to grind from the highest point of the foreign matter toward the pigment layer.

[0082] In another example, if the target pixel is the second target pixel, that is, the foreign matter is completely within the pigment layer, the starting grinding height is the height of the upper surface of the pigment layer of the second target pixel, that is, the grinding portion is located directly above the second target pixel and at least higher than the upper surface of the pigment layer of the second target pixel, so that the grinding portion starts grinding from the upper surface of the pigment layer.

[0083] It should be noted that, in this embodiment, after determining the pixel coordinates of the target pixel, the pixel coordinates of the target pixel and the height of the foreign matter can be transmitted to the foreign matter removal device, wherein the data format is (0, x, y) or (h1, x, y). If the first bit in the data is 0, it is determined that the foreign matter is completely in the second target pixel in the pigment layer, and the starting grinding height is 0. If the first bit in the data is h1, it is determined that the foreign matter is protruding from the first target pixel on the upper surface of the pigment layer, and the starting grinding height is equal to the foreign matter height h1.

[0084] S408, determining a grinding depth, wherein if the target pixel is a first target pixel, the grinding depth is equal to the sum of the height of the foreign matter and the thickness of the pigment layer; if the target pixel is a second target pixel, the grinding depth is equal to the thickness of the pigment layer.

[0085] The grinding depth can be the distance from the starting grinding position to the point where the pigment layer is worn through. Figure 6 As shown in a, if the target pixel is the first target pixel, since the foreign matter protrudes from the upper surface of the pigment layer, the grinding depth is equal to the sum of the foreign matter height h1 and the pigment layer thickness h0, that is, the grinding depth is equal to the pixel height h when the foreign matter protrudes from the pixel, as shown in Figure 6 As shown in b, if the target pixel is the second target pixel, since the foreign matter is completely in the pigment layer, the grinding depth is equal to the pigment layer thickness h0.

[0086] S409, controlling the grinding part to start grinding from the initial grinding height until the grinding depth is reached.

[0087] Specifically, after the grinding part is controlled to be at the starting grinding height, the grinding part can be controlled to open. For example, the grinding part is provided with a grinding wheel. After the rotation speed of the grinding wheel can be controlled to reach a preset rotation speed, the grinding wheel is controlled to move toward the direction of the pigment layer, so that the grinding wheel grinds foreign matter protruding from the pigment layer and foreign matter in the pigment layer during the movement to remove the foreign matter in the pigment layer, until the moving distance reaches the grinding depth, so that the pigment layer is ground through to completely remove the foreign matter in the pigment layer.

[0088] S410, controlling the movement of the nozzle of the paint replenishing device so that the coordinates of the nozzle are equal to the pixel coordinates.

[0089] like Figure 3 As shown in b, after the pigment layer containing foreign matter is ground through by the grinding device 7, a hole 9 is formed in the pigment layer, and the hole 9 needs to be backfilled with pigment. Specifically, the hole can be filled with pigment by a pigment replenishing device.

[0090] Exemplarily, the paint replenishing device is provided with a nozzle 8, and the nozzle 8 can be controlled to move to above the paint layer of the target pixel after the foreign matter is removed according to the pixel coordinates.

[0091] S411, controlling the paint replenishing device to inject paint from the nozzle into the target pixel after the foreign matter is removed at a preset flow rate, wherein the duration of the paint injection is equal to the preset duration.

[0092] Specifically, the amount of pigment injected from the nozzle into the pigment layer is positively correlated with the nozzle flow rate and injection duration. This embodiment can determine the volume of the hole formed by the grinding part grinding through the pigment layer based on big data statistical analysis. For example, the diameter of the grinding wheel of the grinding part is usually fixed, and the volume of the hole formed when it grinds through the pigment layer from top to bottom can be estimated through big data. For example, after grinding multiple pigment layers, the average value of the volume of the hole is measured as the hole volume. The nozzle flow rate and injection duration can be determined through the hole volume. After the nozzle replenishes the pigment to the pigment layer at a preset flow rate and preset duration, the pigment can fill the hole after removing foreign matter. Figure 3 The schematic diagram of the paint layer after filling with pigment is shown in c, and foreign matter is removed from the paint layer after filling with pigment.

[0093] S412, detecting the thickness of the pigment layer after the pigment is replenished.

[0094] The thickness of the pigment layer may be the distance from the upper surface of the glass substrate to the upper surface of the pigment layer. The thickness of the pigment layer may be detected by a contact displacement sensor. In one example, multiple thicknesses of the pigment layer may be detected, and the average of the multiple thicknesses may be taken as the final thickness.

[0095] S413, determining whether the thickness is within a preset range.

[0096] The preset range can be a pre-configured allowable paint layer thickness range. The detected thickness can be compared with the preset range. If the detected thickness is within the preset range, it is determined that the paint layer thickness is qualified after the nozzle fills the paint layer, and S414 can be executed. If the detected thickness is outside the preset range, it is determined that the paint layer thickness is unqualified, and S415 can be executed.

[0097] S414, confirm that the foreign body defect repair is completed.

[0098] If the detected thickness is within the preset range, it is determined that the thickness of the paint layer is qualified after the nozzle fills the paint layer, and the foreign matter repair is completed.

[0099] S415, controlling the foreign matter removal device to correct the thickness of the pigment layer according to the pixel coordinates.

[0100] In one example, if the thickness is less than the lower limit of the preset range, it means that the nozzle has not filled enough pigment into the pigment layer, and the nozzle can continue to be used to fill the pigment layer. If the thickness is greater than the upper limit of the preset range, it means that the nozzle has filled too much pigment into the pigment layer, and a foreign matter removal device can be used to remove excess pigment to correct the thickness of the pigment layer and return to S412.

[0101] After detecting the presence of foreign matter in the pigment layer and determining the pixel coordinates, this embodiment controls the grinding part of the grinding device to move to the top of the pigment layer according to the pixel coordinates, and after determining the starting grinding height and grinding depth, controls the grinding part to grind the pigment layer from the starting grinding height until the grinding depth is reached to grind through the pigment layer, and controls the pigment replenishing device to replenish pigment to the pigment layer after grinding, and further detects the thickness of the pigment layer after replenishing the pigment until the thickness of the pigment layer is within a preset range. This achieves the detection of pixel points with foreign matter after the pigment layer is set on the glass substrate, and replenishes the pigment after removing the foreign matter, so that the pigment layer of the pixel after replenishing the pigment is free of foreign matter, and foreign matter can be discovered and repaired in time, thereby reducing pixel electrode short circuits and dark spot defects caused by foreign matter in the pigment layer of the pixel, and improving the yield of the display panel.

[0102] Furthermore, when detecting a paint layer with foreign matter, the paint layer with foreign matter protruding from the surface of the paint layer can be detected by detecting the height of the paint layer, and the paint layer with foreign matter completely located within the paint layer can be detected by detecting the image, thereby enabling more comprehensive detection of paint layers with foreign matter in various states.

[0103] Embodiment 3

[0104] Figure 7 This is a schematic diagram of the structure of a device for repairing foreign matter in a pigment layer of a display panel provided in the third embodiment of the present invention. Figure 7 As shown, the display panel pigment layer foreign body repair device comprises:

[0105] A foreign body detection module 701 is used to detect the glass substrate after the pigment layer is set, and determine the pixel coordinates of the target pixel, where the target pixel is the pixel where the foreign body exists in the pigment layer;

[0106] A foreign body height detection module 702 is used to detect the foreign body height of the target pixel, where the foreign body height is the distance from the pigment layer to the highest point of the foreign body;

[0107] A foreign matter removal module 703, configured to control a foreign matter removal device to remove foreign matter in the target pixel according to the pixel coordinates and the height of the foreign matter;

[0108] A pigment replenishing module 704, configured to control a pigment replenishing device to replenish pigment to the target pixel after the foreign matter is removed according to the pixel coordinates;

[0109] The pigment thickness detection module 705 is used to detect the thickness of the pigment layer after the pigment is replenished;

[0110] A thickness determination module 706 is used to determine whether the thickness is within a preset range, if so, to execute a repair completion confirmation module 707, if not, to execute a pigment layer thickness correction module 708;

[0111] The repair completion confirmation module 707 is used to confirm that the foreign body defect repair is completed;

[0112] The paint layer thickness correction module 708 is used to control the foreign matter removal device to correct the thickness of the paint layer according to the pixel coordinates and return to the paint thickness detection module 705.

[0113] Optionally, the foreign matter detection module 701 includes:

[0114] A height detection unit, used to detect the height of each pixel on the glass substrate;

[0115] A first target pixel determining unit, configured to determine that the pixel is a first target pixel if the height is greater than a preset height threshold;

[0116] The first coordinate determining unit is used to determine the pixel coordinates of the first target pixel.

[0117] Optionally, the foreign matter detection module 701 further includes:

[0118] A backlight setting unit, used for placing the glass substrate on a backlight device and controlling the backlight device to emit light to illuminate the glass substrate;

[0119] An image acquisition unit, used for acquiring an image of a display area of ​​the glass substrate;

[0120] A second target pixel determining unit, configured to determine a second target pixel based on the image;

[0121] The second coordinate determining unit is used for the coordinate determining unit to determine the pixel coordinates of the second target pixel according to the image coordinates of the second target pixel in the image.

[0122] Optionally, the image acquisition unit is specifically used for:

[0123] An image acquisition device having the same resolution as that of the display panel is used to acquire images from the display area of ​​the display panel.

[0124] Optionally, the second target pixel determination unit is specifically used to: determine the brightness of each pixel in the image except the first target pixel; determine whether the brightness is less than a preset brightness threshold; if so, determine that the pixel whose brightness is less than the brightness threshold is the second target pixel.

[0125] Optionally, the foreign matter removal module 703 includes:

[0126] a grinding part movement control unit, used for controlling the movement of the grinding part of the foreign matter removal device so that the coordinates of the grinding part are equal to the pixel coordinates;

[0127] a starting grinding height determining unit, used for initializing a starting grinding height of the grinding portion, wherein if the target pixel is a first target pixel, the starting grinding height is equal to the height of the foreign matter, and if the target pixel is a second target pixel, the starting grinding height is the height of the upper surface of the second target pixel;

[0128] a grinding depth determination unit, used to determine a grinding depth, wherein if the target pixel is a first target pixel, the grinding depth is equal to the sum of the height of the foreign matter and the thickness of the pigment layer, and if the target pixel is a second target pixel, the grinding depth is equal to the thickness of the pigment layer;

[0129] The grinding control unit is used to control the grinding part to grind from the starting grinding height until the grinding depth is reached.

[0130] Optionally, the pigment replenishment module 704 includes:

[0131] a nozzle movement control unit, used to control the movement of the nozzle of the paint replenishing device so that the coordinates of the nozzle are equal to the pixel coordinates;

[0132] The pigment injection unit is used to control the pigment replenishing device to inject pigment from the nozzle into the target pixel after the foreign matter is removed at a preset flow rate, wherein the duration of the pigment injection is equal to the preset duration.

[0133] The device for repairing foreign matter in the pigment layer of a display panel provided in an embodiment of the present invention can execute the method for repairing foreign matter in the pigment layer of a display panel provided in any embodiment of the present invention, and has functional modules and beneficial effects corresponding to the execution method.

[0134] Embodiment 4

[0135] Figure 8 A schematic diagram of the structure of an electronic device 40 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0136] like Figure 8As shown, the electronic device 40 includes at least one processor 41, and a memory connected to the at least one processor 41, such as a read-only memory (ROM) 42, a random access memory (RAM) 43, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 41 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 42 or the computer program loaded from the storage unit 48 to the random access memory (RAM) 43. In the RAM 43, various programs and data required for the operation of the electronic device 40 can also be stored. The processor 41, the ROM 42, and the RAM 43 are connected to each other through a bus 44. An input / output (I / O) interface 45 is also connected to the bus 44.

[0137] A number of components in the electronic device 40 are connected to the I / O interface 45, including: an input unit 46, such as a keyboard, a mouse, etc.; an output unit 47, such as various types of displays, speakers, etc.; a storage unit 48, such as a disk, an optical disk, etc.; and a communication unit 49, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 49 allows the electronic device 40 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0138] The processor 41 may be a variety of general and / or dedicated processing components with processing and computing capabilities. Some examples of the processor 41 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 41 performs the various methods and processes described above, such as a display panel pigment layer foreign body repair method.

[0139] In some embodiments, the display panel pigment layer foreign body repair method can be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 48. In some embodiments, part or all of the computer program can be loaded and / or installed on the electronic device 40 via the ROM 42 and / or the communication unit 49. When the computer program is loaded into the RAM 43 and executed by the processor 41, one or more steps of the display panel pigment layer foreign body repair method described above can be performed. Alternatively, in other embodiments, the processor 41 can be configured to execute the display panel pigment layer foreign body repair method in any other appropriate manner (for example, by means of firmware).

[0140] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0141] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0142] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, 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 foregoing.

[0143] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0144] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0145] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0146] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0147] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for repairing foreign matter in a display panel pigment layer, characterized in that: include: Detecting the glass substrate after the pigment layer is provided, and determining the pixel coordinates of the target pixel, wherein the target pixel is a pixel where foreign matter exists in the pigment layer; Detecting the height of the foreign object at the target pixel, where the height of the foreign object is the distance from the pigment layer to the highest point of the foreign object; Controlling a foreign matter removal device to remove foreign matter in the target pixel according to the pixel coordinates and the height of the foreign matter; Controlling the pigment replenishing device to replenish pigment to the target pixel after the foreign matter is removed according to the pixel coordinates; Detect the thickness of the pigment layer after pigment replenishment; Determining whether the thickness is within a preset range; If so, make sure to complete the foreign body defect repair; If not, the foreign matter removing device is controlled to correct the thickness of the pigment layer according to the pixel coordinates, and the process returns to the step of detecting the thickness of the pigment layer after the pigment is replenished.

2. The method for repairing foreign matter in the pigment layer of a display panel according to claim 1, characterized in that: Detecting the glass substrate after the pigment layer is set to determine the pixel coordinates of the target pixel, including: Detecting the height of each pixel on the glass substrate, where the height of the pixel is the height from the upper surface of the glass substrate to the highest point of the pixel; If the height of the pixel is greater than a preset height threshold, determining that the pixel is a first target pixel; The pixel coordinates of the first target pixel are obtained.

3. The method for repairing foreign matter in the pigment layer of a display panel according to claim 2, characterized in that: After obtaining the pixel coordinates of the first target pixel, the method further includes: Placing the glass substrate on a backlight device, and controlling the backlight device to emit light to illuminate the glass substrate; Capturing an image of a display area of ​​the glass substrate; determining a second target pixel based on the image; The pixel coordinates of the second target pixel are determined according to the image coordinates of the second target pixel in the image.

4. The method for repairing foreign matter in the pigment layer of a display panel according to claim 3, characterized in that: Capturing an image of a display area of ​​the glass substrate, comprising: An image acquisition device having the same resolution as that of the display panel is used to acquire images from the display area of ​​the display panel.

5. The method for repairing foreign matter in a display panel pigment layer according to claim 3, characterized in that: Determining a second target pixel based on the image includes: Determining the brightness of each pixel in the image except the first target pixel; Determining whether the brightness is less than a preset brightness threshold; If so, determine that the pixel whose brightness is less than the brightness threshold is the second target pixel.

6. The method for repairing foreign matter in the pigment layer of a display panel according to any one of claims 3 to 5, characterized in that: Controlling a foreign matter removal device to remove foreign matter in the target pixel according to the pixel coordinates and the height of the foreign matter includes: Controlling the grinding portion of the foreign matter removal device to move so that the coordinates of the grinding portion are equal to the pixel coordinates; Initializing a starting grinding height of the grinding portion, wherein if the target pixel is a first target pixel, the starting grinding height is equal to the height of the foreign matter, and if the target pixel is a second target pixel, the starting grinding height is the height of the upper surface of the second target pixel; Determine a grinding depth, wherein if the target pixel is a first target pixel, the grinding depth is equal to the sum of the height of the foreign matter and the thickness of the pigment layer, and if the target pixel is a second target pixel, the grinding depth is equal to the thickness of the pigment layer; The grinding part is controlled to start grinding from the starting grinding height until the grinding depth is reached.

7. The method for repairing foreign matter in a pigment layer of a display panel according to any one of claims 1 to 5, characterized in that: Controlling the pigment replenishing device to replenish the pigment of the target pixel after the foreign matter is removed according to the pixel coordinates includes: Controlling the movement of the nozzle of the paint replenishing device so that the coordinates of the nozzle are equal to the pixel coordinates; The pigment replenishing device is controlled to inject pigment from the nozzle into the target pixel after the foreign matter is removed at a preset flow rate, wherein the duration of the pigment injection is equal to the preset duration.

8. A device for repairing foreign matter in a display panel pigment layer, characterized in that: include: A foreign matter detection module is used to detect the glass substrate after the pigment layer is set, and determine the pixel coordinates of the target pixel, where the target pixel is a pixel where the foreign matter exists in the pigment layer; A foreign body height detection module, used to detect the foreign body height of the target pixel, wherein the foreign body height is the distance from the pigment layer to the highest point of the foreign body; A foreign matter removal module, used for controlling a foreign matter removal device to remove foreign matter in the target pixel according to the pixel coordinates and the height of the foreign matter; A pigment replenishing module, used for controlling the pigment replenishing device to replenish pigment to the target pixel after the foreign matter is removed according to the pixel coordinates; A pigment thickness detection module, used to detect the thickness of the pigment layer after the pigment is replenished; A thickness determination module, used to determine whether the thickness is within a preset range, if so, execute a repair completion confirmation module, if not, execute a pigment layer thickness correction module; A repair completion confirmation module is used to confirm that the foreign body defect repair is completed; The pigment layer thickness correction module is used to control the foreign matter removal device to correct the thickness of the pigment layer according to the pixel coordinates and return to the pigment thickness detection module.

9. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the display panel pigment layer foreign matter repair method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the display panel pigment layer foreign matter repair method according to any one of claims 1 to 7 when executed.

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