Display panel carrier, pixel bright spot repair system, and pixel bright spot repair method

Abstract

A display panel carrier (100), a pixel bright spot repair system, and a pixel bright spot repair method, relating to the technical field of display. The display panel carrier (100) comprises a carrying platform (1) and a yaw assembly (2), wherein the carrying platform (1) is provided with a carrying surface (11) for carrying a display panel (200); and the yaw assembly (2) is in transmission connection with the carrying platform (1) and is configured to drive the carrying platform (1) to swing.

Description

Display panel carrier, pixel bright spot repair system and pixel bright spot repair method

[0001] This application claims priority to Chinese Patent Application No. 202411448379.2, filed on October 16, 2024, entitled “Display Panel Carrier, Pixel Bright Spot Repair System and Pixel Bright Spot Repair Method”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of display technology, and in particular to a display panel carrier, a pixel bright spot repair system, and a pixel bright spot repair method. Background Technology

[0003] In near-eye display devices such as VR (Virtual Reality) and AR (Augmented Reality), OLED (Organic Light-Emitting Diode) display panels are typically used as display devices. To improve the brightness of the display device, microlenses are added to the OLED display panel, and microlens offset technology is used to make the light-emitting structure of some pixels off-center from the microlenses to avoid the problem of light emission path distortion.

[0004] Currently, the most common defect in display devices is the bright spot defect, which can be repaired by destroying the bright spot with a laser. However, for display panels that use microlens offset technology, the laser is affected by the refraction of the microlens when it is incident on the display panel, which can easily cause the laser to be deflected. This can cause the damage location to deviate from the bright spot to be repaired, resulting in accidental damage or repair failure, thus affecting the repair success rate. Summary of the Invention

[0005] The main objective of this invention is to provide a display panel carrier, a pixel bright spot repair system, and a repair method, aiming to improve the repair success rate of display devices.

[0006] To achieve the above objectives, the present invention provides a display panel carrier comprising:

[0007] The support platform, wherein the support platform is provided with a support surface for supporting the display panel; and

[0008] A swaying assembly is connected to the carrying platform via a transmission connection and is used to drive the carrying platform to sway.

[0009] In one embodiment, the display panel carrier further includes a rotating component, the support platform is disposed on the rotating component, the rotating component is tractively connected to the oscillating component, the oscillating component can drive the rotating component and the support platform to oscillate, and the rotating component can drive the support platform to rotate along the plane where the support surface is located.

[0010] In one embodiment, the oscillating assembly includes a base and a oscillating platform, at least a portion of the top surface of the base is a sliding surface, the sliding surface is configured as a concave arc surface or a concave spherical surface, and the oscillating platform is attached to the sliding surface;

[0011] The rotating component and the supporting platform are disposed on the swing platform, which can slide along the sliding surface to drive the rotating component and the supporting platform to swing relative to the base.

[0012] In one embodiment, the swing table has a mounting surface, the rotating assembly includes a rotatable rotating platform disposed on the mounting surface, and the bearing platform is disposed on the rotating platform.

[0013] In one embodiment, the display panel carrier further includes a first slide and a second slide. The first slide is slidably disposed on the top surface of the rotating platform, and the second slide is slidably disposed on the top surface of the first slide. The supporting platform is disposed on the second slide, and the sliding directions of the first slide and the second slide are set at an angle.

[0014] In one embodiment, the support platform can be raised and lowered along the normal direction of the support surface.

[0015] The present invention also proposes a pixel bright spot repair system, including a laser and a display panel carrier as described in any of the foregoing embodiments.

[0016] This invention also proposes a pixel bright spot repair method, which is implemented using the aforementioned pixel bright spot repair system, and includes the following steps:

[0017] The display panel is tilted to adjust its angle so that the light emission direction of the pixel to be repaired coincides with the laser incident direction.

[0018] A laser is emitted into the display panel to destroy the light-emitting structure of the pixels to be repaired.

[0019] In one embodiment, the step of swinging the display panel to adjust its tilt angle further includes:

[0020] Align the center pixel of the display panel with the laser incident position;

[0021] Obtain the coordinate information of the pixel to be repaired relative to the center pixel, and obtain the swing angle of the display panel based on the coordinate information;

[0022] The movable display panel moves the pixel to be repaired to the laser incident position;

[0023] If the light emission direction of the pixel to be repaired is not on the same plane as the swing direction, rotate the display panel to adjust the light emission direction of the pixel to the plane where the swing direction is located.

[0024] In one embodiment, the step of swinging the display panel to adjust its tilt angle further includes:

[0025] Adjust the height of the display panel so that the light-emitting layer of the display panel is located at the height of the swing axis of the display panel.

[0026] The technical solution of this invention uses a tilting component to adjust the tilt angle of the support platform, making the tilt angle of the display panel mounted on the platform adjustable. When it is necessary to repair bright pixels in the display panel, the light emission direction of the pixel to be repaired is adjusted to be the same as the laser incident direction, so that the laser can be accurately emitted onto the pixel to be repaired, thereby destroying the light-emitting layer of the pixel to be repaired and making the pixel a dark spot. This repair method can avoid the problem of damage position displacement due to microlens refraction, and improve the success rate of laser repair. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 is a schematic diagram of an embodiment of a display panel employing microlens offset technology;

[0029] Figure 2 shows the emitted light model of the display panel in Figure 1;

[0030] Figure 3 is a structural diagram of the cooperation between an embodiment of the display panel carrier proposed in this invention and the display panel;

[0031] Figure 4 is a structural diagram of the display panel carrier and display panel in the initial state of laser repair shown in Figure 3;

[0032] Figure 5 is a top view of Figure 4;

[0033] Figure 6 is a schematic diagram of the light output path of the pixel to be repaired;

[0034] Figure 7 shows the state diagram of moving the pixel to be repaired to the laser incident position;

[0035] Figure 8 shows the state diagram where the pixel to be repaired is adjusted so that the light emission direction and the swing direction of the support platform are on the same plane.

[0036] Figure 9 is a schematic diagram from another perspective of Figure 8;

[0037] Figure 10 shows the state of the pixel to be repaired, where the light output direction coincides with the laser incident direction.

[0038] Explanation of reference numerals: 100, Display panel carrier; 1, Support platform; 11, Support surface; 2, Oscillating component; 21, Base; 211, Sliding surface; 22, Oscillating stage; 3, Rotating platform; 4, First slide stage; 5, Second slide stage; 200, Display panel; 210, Light-emitting layer; 220, Microlens layer; 230, Filter layer; 240, Light-emitting structure; 250, Substrate; 260, Microlens; 270, Filter structure; 280, Pixel to be repaired.

[0039] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0041] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0042] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0043] In near-eye display devices such as VR (Virtual Reality) and AR (Augmented Reality), OLED (Organic Light-Emitting Diode) display panels are typically used as display devices. To improve the brightness of the display device, microlenses are added to the OLED display panel, and microlens offset technology is used to make the light-emitting structure of some pixels off-center from the microlenses to avoid the problem of light emission path distortion.

[0044] Referring to Figures 1 and 2, the display panel 200 includes a substrate 250, a light-emitting layer 210, and a microlens layer 220 stacked sequentially. The light-emitting layer 210 has a plurality of light-emitting structures 240, and the microlens layer 220 includes a plurality of microlenses 260 corresponding to each light-emitting structure 240. Each light-emitting structure 240 and its corresponding microlens 260 forms a pixel. In some embodiments, the display panel 200 also includes a filter layer 230, which includes a plurality of filter structures 270 corresponding to each of the light-emitting structures 240. The filter structures 270 are located between the light-emitting structures 240 and the microlenses 260. The pixel located at the center of the display area of ​​the display panel 200 is called the center pixel. The light emission angle of the center pixel is the same as the normal direction of the display panel 200, and the light-emitting center of the light-emitting structure 240 of the center pixel is coaxial with the lens center of the microlens 260. The other pixels in the pixel panel are edge pixels. To accommodate the distortion of the light emission path when a silicon-based OLED is paired with a near-eye display optical module, the light emission center of the edge pixel's light emission structure 240 is offset from the lens center of the microlens 260. The offset direction is the direction of the line connecting the edge pixel and the center pixel. In this configuration, the edge pixels are affected by the refraction of the microlens 260, causing the light emission path of the edge pixels to be skewed from the normal direction of the display panel 200. Furthermore, the light emission angle of edge pixels at different positions is different, with the light emission angle being larger for edge pixels farther from the center pixel. The intersection point of the reverse extension of the light emission path of the center pixel and the light emission path of the pixel to be repaired 280 is defined as S, as shown in Figure 2. The emitted light model of the display panel 200 can be considered as a light emission model with point S as the center.

[0045] When a bright spot defect appears in the display panel 200, laser repair can be used. The laser destroys the light-emitting structure 240 of the pixel to be repaired 280, causing the pixel to stop emitting light and form a dark spot. If the pixel with the bright spot defect is a central pixel, since the light-emitting structure 240 and microlens 260 of the central pixel are not offset, the laser enters along the normal direction of the display panel 200, and the laser's incident angle is the same as the exit angle of the central pixel, allowing it to accurately target the light-emitting structure 240 of the central pixel. If the pixel with the bright spot defect is an edge pixel, since the light-emitting structure 240 and microlens 260 of the edge pixel are offset, if the laser is incident perpendicularly along the normal direction of the display panel 200, the refraction by the microlens 260 will cause laser deflection, resulting in a misalignment between the actual laser incident position on the light-emitting layer 210 and the position to be repaired. This can easily lead to damage to other structures or repair failure.

[0046] Based on the above problems, the present invention proposes a display panel carrier 100, which can be applied in a pixel bright spot repair system for repairing bright spots on a display panel 200. The display panel carrier 100 is used to support the display panel 200.

[0047] Referring to Figures 3 and 10, in one embodiment of the present invention, the display panel carrier 100 includes a support platform 1 and a swing component 2. The support platform 1 is provided with a support surface 11 for supporting the display panel 200; the swing component 2 is connected to the support platform 1 for driving the support platform 1 to swing.

[0048] In this embodiment, the orientation is described using the example of a laser beam shooting vertically downwards onto the display panel 200 for laser repair. It is understood that in different usage environments, the laser may also shoot horizontally or at other angles, and the installation orientation of the display panel carrier 100 will be adjusted accordingly.

[0049] The display panel carrier 100 provided by this invention can adjust the tilt angle of the display panel 200 according to the light emission angle of the pixel 280 to be repaired, so that the light emission direction of the pixel 280 to be repaired coincides with the incident direction of the laser. With this configuration, during laser repair, the laser beam is directed towards the light emission position of the pixel 280 to be repaired, and can travel along the light emission path to the light-emitting structure 240 of the pixel 280 to be repaired, thereby breaking down and destroying the light-emitting structure 240, causing the bright spot of the pixel to become a dark spot and no longer emit light.

[0050] Specifically, the display panel carrier 100 includes a support platform 1 for placing the display panel 200. The support platform 1 has a support surface 11 on which the display panel 200 can be placed. The display panel carrier 100 is defined to have an initial state in which the support surface 11 of the support platform 1 is perpendicular to the laser incident direction. Optionally, an air channel for connecting a vacuum generator can be provided on the support platform 1, and the support surface 11 has adsorption holes communicating with the air channel, allowing the display panel 200 to be fixed to the support surface 11 by vacuum adsorption. Alternatively, a mask plate can be used to press the display panel 200 onto the support surface 11.

[0051] The oscillation assembly 2 is used to drive the support platform 1 to swing, thereby adjusting the tilt state of the support platform 1 and thus adjusting the tilt angle of the display panel 200. The oscillation assembly 2 can be a motor, located on one side of the support platform 1, and the output shaft of the motor is connected to the support platform 1. The oscillation of the support platform 1 is controlled by driving the output shaft to rotate. The oscillation assembly 2 can also include a motor and a transmission mechanism. The transmission mechanism can be a gear transmission structure, belt transmission structure, linkage transmission structure, worm gear transmission structure or other structures. The motor is connected to the support platform 1 through the transmission mechanism to drive the support platform 1 to swing. Alternatively, in the following embodiment, a swing platform 22 that can slide along a concave arc surface can be provided to set the support platform 1, which is not limited here.

[0052] Optionally, the oscillation component 2 can drive the support platform 1 to oscillate in one direction. In this case, a rotation component can be set as shown in the following embodiment to drive the support platform 1 to rotate, thereby moving the pixel to be repaired 280 to a position where the light emission direction and the oscillation direction are on the same plane. Additionally, in some embodiments, a combination of at least two oscillation structures or a universal oscillation structure can be set to drive the support platform 1 to oscillate in at least two directions, so that the repair pixels located at different positions around the central pixel can be adjusted to have the light emission angle the same as the laser incident angle.

[0053] Optionally, the laser beam path can be directed toward the pixel 280 to be repaired by translating the laser, or, as in the following embodiment, the first slide 4 and the second slide 5 are set in the display panel carrier 100 to move the support platform 1 to adjust the position of the display panel 200 so that the pixel 280 to be repaired is moved to the laser incident position.

[0054] In other words, the technical solution of the present invention uses a tilting component 2 to adjust the tilt angle of the support platform 1, making the tilt angle of the display panel 200 mounted on the support platform 1 adjustable. When it is necessary to repair bright pixels in the display panel 200, by adjusting the tilt angle of the support platform 1 and the display panel 200, the light emission direction of the pixel to be repaired 280 is adjusted to coincide with the laser incident direction. The laser can accurately be emitted onto the light-emitting structure 240 of the pixel to be repaired, so as to accurately destroy the light-emitting structure 240 of the pixel to be repaired 280 and make the pixel a dark spot. This repair method can avoid the problem of displacement of the damage position due to the refraction of the microlens 260, and improve the success rate of laser repair.

[0055] Referring to Figures 3, 7 and 8, in one embodiment, the display panel carrier 100 further includes a rotating component, a support platform 1 is disposed on the rotating component, the rotating component is connected to the swing component 2, the swing component 2 can drive the rotating component and the support platform 1 to swing, and the rotating component can drive the support platform 1 to rotate along the plane where the support surface 11 is located.

[0056] In the display panel 200, the light emission directions of the edge pixels at different positions around the central pixel are different. If the light emission direction of the pixel to be repaired 280 is not on the same plane as the swing direction of the support platform 1, the light emission direction of the pixel to be repaired 280 cannot be adjusted to coincide with the laser incident direction. In this embodiment, by setting the rotating component, the support platform 1 can be driven to rotate, thereby driving the display panel 200 to rotate, thereby adjusting the light emission direction of the pixel to be repaired 280 to the same plane as the swing direction of the oscillation component 2. Then, driving the rotating component to swing can drive the support platform 1 to swing until the light emission direction of the pixel to be repaired 280 in the display panel 200 is adjusted to coincide with the laser incident direction.

[0057] Optionally, the rotating component can be coupled with the bearing platform 1 by setting the bearing platform 1 on the rotating platform 3 of the rotating component; or by setting gear teeth on the edge of the bearing platform 1, and the rotating component can be provided with gears or racks that mesh with the bearing platform 1, or by setting a structure such as a timing belt to connect with the bearing platform 1 to drive the bearing platform 1 to rotate.

[0058] Optionally, the yaw component 2 can drive the rotating component and the carrying platform 1 to swing synchronously. The yaw component 2 can drive the rotating component to swing so as to drive the carrying platform 1 to swing, or the yaw component 2 can be connected to both the rotating component and the carrying platform 1 in a transmission connection to drive the rotating component and the carrying platform 1 to swing synchronously.

[0059] Referring to Figures 3 and 10, in one embodiment, the oscillating component 2 includes a base 21 and a oscillating platform 22. At least a portion of the top surface of the base 21 is a sliding surface 211, which is configured as a concave arc surface or a concave spherical surface. The oscillating platform 22 is attached to the sliding surface 211. The rotating component and the supporting platform 1 are disposed on the oscillating platform 22. The oscillating platform 22 can slide along the sliding surface 211 to drive the rotating component and the supporting platform 1 to oscillate relative to the base 21.

[0060] In this embodiment, the sliding surface 211 on the top surface of the base 21 can be set as a concave arc surface, and the swing platform 22 has a convex arc surface that matches and fits the concave arc surface. The swing platform 22 can slide along the concave arc surface to swing relative to the base 21; or, the sliding surface 211 can be set as a concave spherical surface, in which case the swing platform 22 can swing omnidirectionally relative to the base 21. The combination structure of the base 21 and the swing platform 22 forms the swing component 2 to support the bearing platform 1, which can improve the support stability of the bearing platform 1. Moreover, the stacked arrangement of the swing component 2 and the bearing platform 1 can also reduce the installation area of ​​the display panel carrier 100. Optionally, a gear can be installed in the base 21, with the gear exposed on the sliding surface 211 and meshing with the swing platform 22. The swing platform 22 can be driven to slide along the sliding surface 211 by driving the gear to rotate. Alternatively, a motor can be installed on the side of the swing platform 22, which can directly drive the swing platform 22 to move relative to the base 21. Of course, other transmission structures can also be used to drive the swing platform 22 to slide along the sliding surface 211, which is not limited here.

[0061] Optionally, the support platform 1 can be directly set on the swing table 22, or it can be set on other structures installed on the swing table 22. For example, the support platform 1 can be set on the rotating component, or in the following embodiment, it can be set on the second slide table 5. There are no limitations here.

[0062] Referring to Figures 7 and 8, in one embodiment, the table 22 is provided with a mounting surface, and the rotating component includes a rotatable rotating platform 3 provided on the mounting surface, and a bearing platform 1 is provided on the rotating platform 3.

[0063] In this embodiment, the rotating assembly includes a rotating platform 3, which is rotatably mounted on the mounting surface of the swing platform 22. The support platform 1 can be directly mounted on the rotating platform 3, or, as in the following embodiment, mounted on a slide provided on the rotating platform 3. The rotating platform 3 can drive the support platform 1 to rotate, and the rotating platform 3 can swing relative to the base 21 with the swing platform 22. Optionally, a motor or other driving structure for driving the rotating platform 3 to rotate can be provided in the swing platform 22, or the driving structure can be located on the outside of the swing platform 22; no limitation is made here.

[0064] Referring to Figures 3, 5 and 7, in one embodiment, the display panel carrier 100 further includes a first slide 4 and a second slide 5. The first slide 4 is slidably disposed on the top surface of the rotating platform 3, and the second slide 5 is slidably disposed on the top surface of the first slide 4. The supporting platform 1 is disposed on the second slide 5, and the sliding directions of the first slide 4 and the second slide 5 are arranged at an angle.

[0065] In this embodiment, the display panel carrier 100 includes a first slide 4 and a second slide 5 for driving the carrier platform 1 to translate along the direction of the carrier surface 11. The first slide 4 is slidably disposed on the rotating platform 3, and the second slide 5 is slidably disposed on the first slide 4, so that the second slide 5 can drive the carrier platform 1 to slide relative to the first slide 4, and the first slide 4 can drive the second slide 5 and the carrier platform 1 to slide relative to the yaw assembly 2. With this configuration, the relative position of the carrier platform 1 is adjusted by the first slide 4 and the second slide 5, so that the display panel 200 is moved and the position of the pixel 280 to be repaired is adjusted.

[0066] In practical applications, the incident light path of the laser and the swing center axis of the swing stage 22 are located on the same plane. When the display panel 200 is installed on the support surface 11, the display panel 200 and the laser light path are perpendicular to each other, and the center pixel of the display panel 200 is at the laser incident position, which is the initial state. The position of the pixel to be repaired 280 is determined. The first slide 4 and the second slide 5 are driven to move the pixel to be repaired 280 to the laser incident position. The rotating platform 3 is rotated to adjust the light emission direction of the pixel to be repaired 280 to be parallel to the plane where the swing direction is located. The display panel 200 is swung by the oscillation component 2 to adjust the light emission direction of the pixel to be repaired 280 to coincide with the laser incident direction. Then, the laser can be emitted to repair the pixel to be repaired 280 by destroying the light-emitting structure 240 of the pixel to be repaired 280. In this setup, the laser remains in a fixed position without adjustment. The display panel carrier 100 moves the pixels to be repaired 280 from different locations to a fixed repair position, which can improve the accuracy and yield of laser repair. It can also improve ease of use and simplify the structure of the pixel spot repair system.

[0067] Referring to Figure 3, in one embodiment, the support platform 1 can be raised and lowered along the normal direction of the support surface 11.

[0068] In this embodiment, the lifting direction of the support platform 1 is the normal direction of the support surface 11. By driving the support platform 1 to lift and lower, the height position of the pixel 280 to be repaired can be adjusted so that the light-emitting structure 240 of the pixel 280 to be repaired is located at the focal point of the laser focusing, so that the laser accurately destroys the light-emitting structure 240 of the pixel 280 to be repaired, thereby improving the repair yield. Optionally, a lifting mechanism can be set on the plane on which the support platform 1 is installed to control the lifting and lowering of the support platform 1. The lifting mechanism can be set as a lifting cylinder, or a motor can be used as the driving component, using a screw drive, linkage mechanism or scissor lifting mechanism to drive the lifting and lowering of the support platform 1.

[0069] Optionally, the display panel carrier 100 is equipped with a rotating component, a first slide 4, and a second slide 5 for adjusting the position of the display panel 200. In this case, the laser focus position can be located on the swing center axis of the swing path. By driving the carrier platform 1 to rise and fall, the light-emitting structure 240 of the pixel at the laser incident position is adjusted to the laser focus position. At this time, no matter what angle the display panel 200 swings to, the height position of the light-emitting structure 240 of the pixel at the laser incident position remains unchanged. Therefore, when the rotating component, the first slide 4, and the second slide 5 are used to move the pixels at different positions to the laser incident position, the laser can be accurately focused on the light-emitting structure 240 of the pixel 280 to be repaired, thereby improving the laser repair accuracy and yield.

[0070] Specifically, referring to Figures 4 to 10, when the display panel carrier 100 is applied to the pixel bright spot repair system, the swing direction of the bearing platform 1 driven by the oscillating component 2 is defined as the first direction, and the direction perpendicular to the first direction and the laser incident direction is defined as the second direction. When the display panel carrier 100 is in its initial state, the bearing surface 11 of the bearing platform 1 and the display panel 200 are perpendicular to the laser incident direction. The center pixel of the display panel 200 is aligned with a preset laser incident position. A coordinate system is constructed with the laser incident position as the origin, the first direction as the x-axis extension direction, and the second direction as the y-axis extension direction. Based on this, the coordinates (X, Y) of the pixel to be repaired 280 are obtained. Then, the light emission angle α of the pixel to be repaired 280 relative to the normal direction of the display panel 200 can be obtained from the coordinates of the pixel to be repaired 280. α satisfies... Where R1 is the distance between the center pixel and point S. When performing laser repair on pixel 280, the laser focal point is aligned with the swing center axis of the support platform 1 at the same height. The support platform 1 is then raised and lowered, causing the light-emitting layer 210 on the display panel 200 to move to the height of the swing center axis of the support platform 1. At this point, the light-emitting structure 240 of the pixel at the laser incident position will be located at the laser focal point. The pixel 280 is moved to the laser incident position via the first slide 4 and the second slide 5. The display panel 200 is rotated via the rotating platform 3, so that the light emission direction of the pixel 280 is located in the plane of the swing direction of the stage 22. The rotation angle β of the pixel 280 when its light emission path is in the plane of the swing direction satisfies... Then, by driving the display panel 200 to swing by an angle α through the sway component 2, the light emission direction of the pixel to be repaired 280 can be made to coincide with the laser incident direction. The laser emitted by the laser can then accurately hit the light-emitting structure 240 of the pixel to be repaired 280, thereby destroying the light-emitting structure 240 of the pixel to be repaired 280 and turning it into a dark pixel, thus completing the laser repair.

[0071] This invention also proposes a pixel bright spot repair system, which includes a laser and a display panel carrier 100. The specific structure of the display panel carrier 100 is as described in the above embodiments. The laser is used to emit laser light to destroy the light-emitting structure 240 of the pixel 280 to be repaired. Optionally, the laser is positioned above the display panel carrier 100 to emit laser light vertically downwards to the display panel 200. Since this pixel bright spot repair system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described in detail here.

[0072] This invention also proposes a method for repairing pixel bright spots, which is implemented using the pixel bright spot repair system described in the foregoing embodiments. The repair method includes the following steps:

[0073] Step S10: Swing the display panel 200 to adjust the tilt angle of the display panel 200 so that the light emission direction of the pixel to be repaired 280 coincides with the laser incident direction.

[0074] Step S20: A laser is emitted into the display panel 200 to destroy the light-emitting structure 240 of the pixel to be repaired 280.

[0075] In this embodiment, the display panel 200 is mounted using the display panel carrier 100 described in the previous embodiment. The tilt angle of the support platform 1 is adjusted by the yaw component 2, making the tilt angle of the display panel 200 mounted on the support platform 1 adjustable. When it is necessary to repair bright pixels in the display panel 200, the light emission direction of the pixel to be repaired 280 is adjusted to be the same as the laser incident direction, so that the laser can be accurately emitted onto the light-emitting layer 210 of the pixel to be repaired 280, thereby destroying the light-emitting layer 210 of the pixel to be repaired 280 and making the pixel a dark spot. This repair method can avoid the problem of damage position displacement due to refraction by the microlens 260, and improve the success rate of laser repair.

[0076] In one embodiment, the method further includes, prior to step S10 of tilting the display panel 200 to adjust its tilt angle:

[0077] Step S1: Align the center pixel of the display panel 200 with the laser incident position;

[0078] Step S2: Obtain the coordinate information of the pixel to be repaired 280 relative to the center pixel, and obtain the swing angle of the display panel 200 based on the coordinate information;

[0079] Step S3: Move the display panel 200 to move the pixel 280 to be repaired to the laser incident position;

[0080] Step S4: If the light emission direction of the pixel to be repaired 280 is not on the same plane as the swing direction, rotate the display panel 200 to adjust the light emission direction of the pixel to be repaired 280 to the plane where the swing direction is located.

[0081] In this embodiment, the swing direction of the bearing platform 1 driven by the oscillating component 2 is defined as the first direction, and the direction perpendicular to the first direction and the laser incident direction is defined as the second direction. When the display panel carrier 100 is in the initial state, the bearing surface 11 of the bearing platform 1 and the display panel 200 are perpendicular to the laser incident direction. The center pixel of the display panel 200 is aligned with the preset laser incident position. A coordinate system is constructed with the laser incident position as the origin, the first direction as the x-axis extension direction, and the second direction as the y-axis extension direction. The coordinates (X, Y) of the pixel to be repaired 280 are detected and obtained. The intersection point of the light emission path of the center pixel and the reverse extension line of the light emission path of the pixel to be repaired 280 is defined as S. The emitted light model of the display panel 200 can be regarded as a light emission model with point S as the cone. The light emission angle α of the pixel to be repaired 280 relative to the normal direction of the display panel 200 can be obtained according to the coordinates of the pixel to be repaired 280. α satisfies Where R1 is the distance between the center pixel and point S.

[0082] After obtaining the coordinates of the pixel to be repaired 280, it can be moved to the laser incident position by the first slide 4 and the second slide 5. The display panel 200 is rotated by the rotating platform 3 so that the light emission direction of the pixel to be repaired 280 is located in the plane of the swing direction of the display panel 200. The rotation angle β of the pixel to be repaired 280 when the light emission path is located in the plane of the swing direction satisfies Then, by driving the display panel 200 to swing by an angle α through the sway component 2, the light emission direction of the pixel to be repaired 280 can be made to coincide with the laser incident direction. The laser emitted by the laser can then accurately hit the light-emitting structure 240 of the pixel to be repaired 280, thereby destroying the light-emitting structure 240 of the pixel to be repaired 280 and turning it into a dark pixel, thus completing the laser repair.

[0083] In this embodiment, when performing laser repair on the pixel 280 to be repaired, the laser focal point is positioned at the same height as the swing center axis of the support platform 1, and the light-emitting structure 240 of the pixel located at the laser incident position is also located at the same height as the swing center axis of the support platform 1. This ensures that when pixels at different positions are moved to the laser incident position, the laser can be accurately focused on the light-emitting structure 240 of the pixel 280 to be repaired, thereby improving the accuracy and yield of laser repair. Optionally, a support platform 1 of a specific thickness can be used, so that when the display panel 200 is mounted on the support platform 1, the light-emitting structure 240 of the pixel is located at the same height as the swing center axis of the support platform 1; alternatively, the support platform 1 can be raised and lowered, allowing the light-emitting layer 210 of the display panel 200 to move to the same height as the swing center axis of the support platform 1, thus placing the light-emitting structure 240 of the pixel located at the laser incident position at the laser focal point.

[0084] In one embodiment, the method further includes, prior to step S10 of tilting the display panel 200 to adjust its tilt angle:

[0085] Step S5: Adjust the height of the display panel 200 so that the light-emitting layer 210 of the display panel 200 is located at the height of the swing axis of the display panel 200.

[0086] In this embodiment, the support platform 1 for mounting the display panel 200 is height-adjustable. By raising and lowering the support platform 1, the light-emitting layer 210 of the display panel 200 is moved to the height position of the swing center axis of the support platform 1, thereby placing the light-emitting structure 240 of the pixel at the laser incident position at the laser focal point position. When pixels at different positions are moved to the laser incident position, the laser can be accurately focused on the light-emitting structure 240 of the pixel 280 to be repaired, thereby improving the accuracy and yield of laser repair. Furthermore, this configuration improves the applicability of the display panel carrier 100, allowing it to be used for laser repair of display panels 200 with different heights of the light-emitting layer 210.

[0087] It should be noted that the step numbers in the embodiments of the present invention do not represent the order in which the steps are executed. For example, adjusting the height of the display panel 200 in step S5 can be performed before step S1, after step S4, or between steps S1 and S4. No limitation is made here.

[0088] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A display panel carrier, characterized by, include: A support platform, wherein the support platform is provided with a support surface for supporting the display panel; and A swaying assembly is connected to the carrying platform via a transmission connection and is used to drive the carrying platform to sway.

2. The display panel carrier of claim 1, wherein, The display panel carrier further includes a rotating component, the supporting platform is disposed on the rotating component, the rotating component is tractively connected to the oscillating component, the oscillating component can drive the rotating component and the supporting platform to oscillate, and the rotating component can drive the supporting platform to rotate along the plane where the supporting surface is located.

3. The display panel carrier of claim 2, wherein, The oscillation assembly includes a base and a oscillation platform. At least a portion of the top surface of the base is a sliding surface, which is configured as a concave arc surface or a concave spherical surface. The oscillation platform is attached to the sliding surface. The rotating component and the supporting platform are disposed on the swing platform, which can slide along the sliding surface to drive the rotating component and the supporting platform to swing relative to the base.

4. The display panel carrier of claim 3, wherein, The swing platform has a mounting surface, and the rotating component includes a rotatable rotating platform mounted on the mounting surface, with the bearing platform mounted on the rotating platform.

5. The display panel carrier of claim 4, wherein, The display panel carrier further includes a first slide and a second slide. The first slide is slidably disposed on the top surface of the rotating platform, and the second slide is slidably disposed on the top surface of the first slide. The bearing platform is disposed on the second slide, and the sliding directions of the first slide and the second slide are set at an angle.

6. The display panel carrier according to any one of claims 1 to 5, characterized in that, The support platform can be raised and lowered along the normal direction of the support surface.

7. A pixel bright spot repair system characterized by, Includes a laser and a display panel carrier as described in any one of claims 1 to 6.

8. A pixel bright spot repair method, characterized by, The pixel bright spot repair method is implemented using the pixel bright spot repair system as described in claim 7, and the pixel bright spot repair method includes the following steps: The display panel is tilted to adjust its angle so that the light emission direction of the pixel to be repaired coincides with the laser incident direction. A laser is emitted into the display panel to destroy the light-emitting structure of the pixels to be repaired.

9. The pixel bright spot repair method of claim 8, wherein, The step of swinging the display panel to adjust its tilt angle also includes: Align the center pixel of the display panel with the laser incident position; Obtain the coordinate information of the pixel to be repaired relative to the center pixel, and obtain the swing angle of the display panel based on the coordinate information; The movable display panel moves the pixel to be repaired to the laser incident position; If the light emission direction of the pixel to be repaired is not on the same plane as the swing direction, rotate the display panel to adjust the light emission direction of the pixel to the plane where the swing direction is located.

10. The pixel bright spot repair method of claim 9, wherein, The step of swinging the display panel to adjust its tilt angle also includes: Adjust the height of the display panel so that the light-emitting layer of the display panel is located at the height of the swing axis of the display panel.

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