Sun visor patch alignment fixture

Abstract

The utility model discloses a shading piece pastes alignment frock relates to camera technical field, and this shading piece pastes alignment frock includes base, apron and a plurality of adjusting parts, and apron detachably sets up on base, and apron is close to the side of base and is provided with the accommodating groove of accommodating the base plate and shading piece of stack setting, and apron is still provided with the observation window on the side away from base, and the observation window is communicated with the accommodating groove, a plurality of adjusting parts swing setting are in apron perimeter wall, and every adjusting part is penetrated to accommodating groove, and is configured as the position of shading piece or base plate is adjusted, to correct the relative position of shading piece and base plate. Compared with prior art, the utility model embodiment provides shading piece pastes alignment frock, can realize the adjustment of shading piece and base plate position in the process of pasting shading piece, and then realizes alignment correction, guarantees the alignment accuracy of shading piece.

Description

Technical Field

[0001] This utility model relates to the field of camera technology, and more specifically, to a light-shielding patch alignment fixture. Background Technology

[0002] In existing technologies, camera image sensors typically require light-shielding. Currently, there are roughly three light-shielding techniques. The first involves attaching light-shielding material to the camera's light-inlet. However, this significantly reduces the light-inlet angle, resulting in almost parallel light and severe obstruction of the camera's field of view. The second involves placing the light-shielding material on the wafer during chip manufacturing. However, this method is costly and difficult to manufacture, has a low yield rate, requires high-cost custom chip manufacturing, and has low compatibility with chips from different suppliers. The third approach involves attaching light-shielding material to the chip's photosensitive surface. However, because the photosensitive surface is relatively fragile and surrounded by numerous gold wires, attaching material to this area carries a high risk of damage to the photosensitive surface or the gold wires, leading to image abnormalities.

[0003] Furthermore, regarding the third approach, the inventors proposed a method of setting a light-shielding sheet on the chip. However, when mounting the light-shielding sheet, direct alignment can easily lead to misalignment of the light-shielding sheet and reduced light-shielding accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a light-shielding sheet mounting and alignment fixture, which can adjust the position of the light-shielding sheet and the substrate during the light-shielding sheet mounting process, thereby achieving alignment correction and ensuring the alignment accuracy of the light-shielding sheet.

[0005] The embodiments of this utility model are implemented as follows:

[0006] In one aspect, this utility model embodiment provides a light-shielding sheet patch alignment fixture, comprising:

[0007] Base;

[0008] A cover plate is detachably mounted on a base, the cover plate covers the base, and a receiving groove is provided on the side of the cover plate near the base. The receiving groove is configured to receive a stacked substrate and a light-shielding sheet. The base is configured to abut against the side of the substrate away from the light-shielding sheet. The cover plate is configured to abut against the side of the light-shielding sheet away from the substrate. An observation window is also provided on the side of the cover plate away from the base, and the observation window communicates with the receiving groove.

[0009] Multiple adjusting members are movable on the peripheral wall of the cover plate, each of the adjusting members extending into the receiving groove and configured to adjust the position of the light-shielding sheet and / or the substrate to correct the relative position of the light-shielding sheet and the substrate.

[0010] In an optional embodiment, the receiving groove includes a first step groove and a second step groove that are interconnected. The second step groove is disposed in the middle of the first step groove. The first step groove is configured to receive the substrate, and the second step groove is configured to receive the light-shielding sheet. The second step groove is also connected to the observation window.

[0011] In an alternative embodiment, each of the adjustment members extends through the first stepped groove and is configured to push the substrate, the first stepped groove being configured to be larger than the substrate, and the second stepped groove being configured to be adapted to the size of the light-shielding sheet.

[0012] In an optional embodiment, the peripheral wall of the cover plate is provided with a plurality of first screw holes that extend to the first stepped groove, and the plurality of adjusting members are threadedly assembled into the plurality of first screw holes in a corresponding manner.

[0013] In an optional embodiment, a plurality of the first screw holes are arranged in pairs opposite to each other on the opposite sidewalls of the cover plate.

[0014] In an optional embodiment, a connector is provided on the side of the base away from the cover plate. The connector passes through the base and connects to the cover plate to keep the cover plate and the base relatively fixed.

[0015] In an optional embodiment, the connector includes a bolt, a mounting hole is provided through the base, an elastic washer is provided at at least one end of the mounting hole, the elastic washer is arranged around the mounting hole, a second screw hole is provided on the side of the cover plate near the base, and the bolt passes through the elastic washer and the mounting hole and is threaded into the second screw hole.

[0016] In an optional embodiment, the base is further provided with a relief groove on the side near the cover plate, the relief groove being configured to accommodate the pins of the substrate.

[0017] In an optional embodiment, the edge of the observation window is further provided with a plurality of dispensing notches, each of the dispensing notches being connected to the receiving groove and configured to correspond to the edge of the light-shielding sheet.

[0018] In an optional implementation, each of the dispensing notches is arc-shaped and each of the dispensing notches is connected to the observation window.

[0019] The beneficial effects of this utility model embodiment include:

[0020] The light-shielding sheet alignment fixture provided in this embodiment of the invention features a detachable cover plate on a base. The cover plate fits onto the base, and its bottom side forms a receiving groove capable of accommodating stacked substrates and light-shielding sheets. The base rests against the bottom side of the substrate, and the cover plate rests against the top side of the light-shielding sheet, thus achieving pre-positioning of the substrate and light-shielding sheet. Simultaneously, an observation window is provided on the top side of the cover plate, allowing continuous observation of the relative position of the substrate and light-shielding sheet. Multiple adjusting members are provided on the peripheral wall of the cover plate, each penetrating the receiving groove. These adjusting members allow adjustment of the position of the light-shielding sheet or substrate in different directions, thereby correcting the relative position of the light-shielding sheet and substrate and achieving precise alignment of the light-shielding sheet and substrate. Compared to the prior art, the light-shielding sheet alignment fixture provided in this embodiment of the invention can adjust the position of the light-shielding sheet and substrate during the application of the light-shielding sheet, thereby achieving alignment correction and ensuring the accuracy of the light-shielding sheet alignment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the light-shielding patch alignment fixture provided in an embodiment of the present invention from a first perspective.

[0023] Figure 2 This is a schematic diagram of the light-shielding patch alignment tool provided in an embodiment of the present invention from a second perspective.

[0024] Figure 3 A schematic diagram of the light-shielding sheet patch alignment fixture provided in an embodiment of this utility model from a third-view perspective;

[0025] Figure 4 for Figure 1 Schematic diagram of the cross section at point AA;

[0026] Figure 5 for Figure 2 Schematic diagram of the cross section at point BB;

[0027] Figure 6 for Figure 2 A cross-sectional view at point CC.

[0028] icon:

[0029] 100-Light-shielding sheet mounting fixture; 110-Base; 111-Connector; 113-Mounting hole; 115-Elastic gasket; 117-Leaning groove; 130-Cover plate; 131-First screw hole; 133-Second screw hole; 150-Adjusting component; 170-Receiving groove; 171-First step groove; 173-Second step groove; 190-Observation window; 191-Dispensing notch; 200-Substrate; 300-Light-shielding sheet. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] This invention provides a light-shielding sheet mounting and alignment fixture, which enables adjustment of the position of the light-shielding sheet and the substrate during the mounting process, thereby achieving alignment correction and ensuring the accuracy of the light-shielding sheet alignment. Furthermore, it allows for the design of corresponding light-shielding sheets according to substrates of different sizes and requirements, offering considerable flexibility.

[0037] See Figure 1 , Figure 2 and Figure 4 The light-shielding sheet alignment fixture 100 provided in this embodiment includes a base 110, a cover plate 130, and multiple adjusting components 150. The cover plate 130 is detachably mounted on the base 110 and covers the base 110. A receiving groove 170 is provided on the side of the cover plate 130 near the base 110. The receiving groove 170 is configured to receive the stacked substrate 200 and the light-shielding sheet 300. The base 110 is configured to abut against the substrate 200 away from the light-shielding sheet 300. On the side, the cover plate 130 is configured to abut against the side of the light shield 300 away from the substrate 200, and the side of the cover plate 130 away from the base 110 is also provided with an observation window 190, which communicates with the receiving groove 170; a plurality of adjusting members 150 are movably disposed on the periphery of the cover plate 130, each adjusting member 150 extending through the receiving groove 170 and configured to adjust the position of the light shield 300 and / or the substrate 200 to correct the relative position of the light shield 300 and the substrate 200.

[0038] It should be noted that in this embodiment, all adjusting components 150 are movable. By manually adjusting the adjusting components 150, the position of the corresponding light-shielding sheet 300 or substrate 200 can be adjusted, and the correction process can be observed in real time through the observation window 190, thereby achieving the correction of the relative position of the light-shielding sheet 300 and the substrate 200. Therefore, through this fixture, the position of the light-shielding sheet 300 and the substrate 200 can be adjusted during the application of the light-shielding sheet 300, thereby achieving alignment correction and ensuring the accuracy of the alignment of the light-shielding sheet 300.

[0039] It is worth noting that a photosensitive chip is disposed on the front side of the substrate 200. The edge of the photosensitive chip is electrically connected to the substrate 200 through gold wires. The light-shielding sheet 300 is placed on the substrate 200 to shield the photosensitive chip from light. The light-shielding sheet 300 is vertically spaced from the photosensitive area of ​​the photosensitive chip and the gold wires of the photosensitive chip. This avoids contact between the light-shielding sheet 300 and the photosensitive area and gold wires of the substrate 200 during the mounting process, and avoids abnormal patterning caused by damage to the photosensitive surface or gold wires during the adjustment of the relative position of the light-shielding sheet 300.

[0040] See Figure 1 , Figure 2 and Figure 6 In some embodiments, the receiving groove 170 includes a first stepped groove 171 and a second stepped groove 173 that are interconnected. The second stepped groove 173 is disposed in the middle of the first stepped groove 171. The first stepped groove 171 is configured to receive the substrate 200, and the second stepped groove 173 is configured to receive the light-shielding sheet 300. The second stepped groove 173 is also connected to the observation window. Specifically, the first stepped groove 171 and the second stepped groove 173 are distributed in a stepped manner. The depth of the first stepped groove 171 corresponds to the thickness of the substrate 200, and the depth of the second stepped groove 173 is adapted to the thickness of at least the edge of the light-shielding sheet 300. Furthermore, the sum of the depths of the first stepped groove 171 and the second stepped groove 173 is slightly less than the sum of the heights of the substrate 200 and the light-shielding sheet 300, thereby ensuring that the cover plate 130 can abut against the top surface of the light-shielding sheet 300, thus preventing the light-shielding sheet 300 from sliding freely.

[0041] In some embodiments, each adjusting member 150 extends through the first stepped groove 171 and is configured to push the substrate 200. The size of the first stepped groove 171 is configured to be larger than the size of the substrate 200, and the size of the second stepped groove 173 is configured to match the size of the light-shielding sheet 300. Specifically, the inner end face of each adjusting member 150 can abut against the side wall of the substrate 200, thereby adjusting the position of the substrate 200 by adjusting the position of the adjusting member 150. The second stepped groove 173 matches the light-shielding sheet 300, thus limiting the light-shielding sheet 300 as much as possible in the horizontal direction and preventing the light-shielding sheet 300 from shifting synchronously during the adjustment of the substrate 200. The first stepped groove 171 is larger than the substrate 200, so it has sufficient adjustment space to facilitate position adjustment using adjusting members 150 in different directions.

[0042] It should be noted that in this embodiment, both the substrate 200 and the light-shielding sheet 300 can be rectangular structures, and the first step groove 171 and the second step groove 173 are also rectangular. The dimensions of the first step groove 171 and the second step groove 173 refer to the length and width of the first step groove 171 and the second step groove 173; the dimensions of the substrate 200 and the light-shielding sheet 300 refer to the length and width of the substrate 200 and the light-shielding sheet 300.

[0043] In other preferred embodiments of this utility model, the size of the first step groove can be adapted to the size of the substrate 200, the size of the second step groove 173 can be larger than the size of the light shield 300, and the adjusting member 150 can pass through the second step groove 173, and the relative position of the light shield 300 can be adjusted by pushing the position of the light shield 300.

[0044] See Figure 1 , Figure 2 and Figure 5 In some embodiments, the peripheral wall of the cover plate 130 is provided with a plurality of first screw holes 131 extending into the first stepped groove 171, and a plurality of adjusting members 150 are threadedly fitted into the plurality of first screw holes 131 in a corresponding manner. Specifically, the adjusting member 150 is an adjusting screw. By turning the adjusting screw, its feed depth can be adjusted, thereby pushing the substrate 200 and realizing the adjustment of the relative position of the light-shielding sheet 300. It should be noted that the plurality of first screw holes 131 can be distributed around the first stepped groove 171, so that the position of the substrate 200 can be adjusted from different directions around the perimeter, and the adjustment effect is better.

[0045] Furthermore, multiple first screw holes 131 are arranged in pairs on opposite sidewalls of the cover plate 130. Specifically, the cover plate 130 is rectangular, with two first screw holes 131 on each sidewall, for a total of eight first screw holes 131, and the four first screw holes 131 on opposite sidewalls are paired. Eight adjusting members 150 are correspondingly arranged among the eight first screw holes 131, enabling adjustments in eight different directions and improving the adjustment freedom of the substrate 200. Of course, in other preferred embodiments of this invention, the adjustment freedom of the substrate 200 can be further improved by increasing the number of first screw holes 131 and adjusting members 150, making the adjustment more precise and reliable.

[0046] See Figure 3 Figure 5 and Figure 6In some embodiments, a connector 111 is provided on the side of the base 110 away from the cover plate 130. The connector 111 passes through the base 110 and connects to the cover plate 130, so that the cover plate 130 and the base 110 remain relatively fixed. Specifically, the connector 111 is assembled by the base 110, connecting the cover plate 130 and the base 110 into one unit, ensuring that the cover plate 130 abuts against the surface of the light-shielding sheet 300 and the base 110 abuts against the surface of the substrate 200, further preventing the light-shielding sheet 300 from sliding freely with the substrate 200. In other preferred embodiments of this utility model, the fastening between the cover plate 130 and the base 110 can also be achieved by an edge snap-fit ​​structure, the specific structure and snap-fit ​​method of which will not be described in detail here.

[0047] In some embodiments, the connector 111 includes a bolt, a mounting hole 113 is provided through the base 110, and an elastic washer 115 is provided at least one end of the mounting hole 113. The elastic washer 115 is arranged around the mounting hole 113, and a second screw hole 133 is provided on the side of the cover plate 130 near the base 110. The bolt passes through the elastic washer 115 and the mounting hole 113 and is threaded into the second screw hole 133. Specifically, the elastic washer 115 is preferably located on the side of the base 110 away from the cover plate 130. By providing the elastic washer 115, an elastic connection between the bolt and the base 110 can be achieved, thereby giving the connection between the base 110 and the cover plate 130 a certain elastic margin and avoiding the situation where the light shield 300 cannot be pushed due to excessive tightening.

[0048] It should be noted that there are two connectors 111 here, and the second screw hole 133 is located on both sides of the groove along the long side of the first step. In order to ensure that the lower end face of the base 110 is flush, the bottom end of the mounting hole 113 in this embodiment is countersunk to facilitate the accommodation of the nut part of the connector 111.

[0049] In some embodiments, a clearance groove 117 is also provided on the side of the base 110 near the cover plate 130. The clearance groove 117 is configured to accommodate the pins of the substrate 200. Specifically, the clearance groove 117 can penetrate through the base 110, thereby facilitating observation of whether it is correctly aligned with the pins of the substrate 200. By providing the clearance groove 117, clearance of the pins can be achieved, preventing the tooling from damaging the structure of the substrate 200.

[0050] See Figure 2In some embodiments, the edge of the observation window 190 is further provided with a plurality of dispensing notches 191, each dispensing notch 191 connecting to the receiving groove 170 and configured to correspond to the edge of the light-shielding sheet 300. Specifically, the dispensing notches 191 can connect to the first step groove 171 and the second step groove 173. The observation window 190 is rectangular, and there can be 6 dispensing notches 191. The 6 dispensing notches 191 are respectively located at the four apex corners and the midpoints of the two long sides of the observation window 190, thereby achieving 6 dispensing points. The adhesive is applied to the edge of the light-shielding sheet 300 and the surface of the substrate 200 through the dispensing notches 191, thereby bonding the light-shielding sheet 300 and the substrate 200 together. Of course, the number of dispensing notches 191 is not specifically limited here.

[0051] It should be noted that in this embodiment, the size of the observation window 190 is smaller than that of the light-shielding plate 300 and the second step groove. The relative position of the inner side of the light inlet of the light-shielding plate 300 and the edge of the photosensitive surface of the substrate 200 can be observed through the observation window 190, which makes it convenient to adjust the light-shielding plate 300 to the calibration position.

[0052] In other preferred embodiments of this invention, adhesive can be injected directly into the flared edge of the observation window 190, which can also achieve the alignment and bonding of the light-shielding sheet 300 and the substrate 200. Alternatively, the cover plate 130 can be precisely removed and then bonded with adhesive through precise operation.

[0053] Furthermore, each adhesive dispensing notch 191 is arc-shaped and connects to the observation window. Specifically, the adhesive dispensing notch 191 is formed by widening the edge of the observation window, and its arc shape facilitates uniform diffusion of the adhesive after injection along the center, minimizing adhesion to the cover plate 130. Of course, in other preferred embodiments of this invention, the adhesive dispensing notches 191 can also be spaced apart from the observation windows 190, i.e., the adhesive dispensing notches 191 correspond to the four apex corners and the midpoint of the long side of the second step groove and are independently spaced relative to the observation windows 190.

[0054] During actual mounting, the cover plate 130 is first placed upside down on the clean bench, and then the light shield 300 is placed in the second step groove 173 corresponding to the cover plate 130. Next, the substrate 200 is placed upside down in the first step groove 171 corresponding to the cover plate 130. Then, the base 110 is placed upside down on the substrate 200, and the base 110 is connected to the cover plate 130 via the connector 111. Because the connector 111 uses an elastic gasket 115, the pressure of the cover plate 130 and base 110 on the substrate 200 is reduced, facilitating subsequent adjustment of the light shield 300's position. The assembled structure is then flipped over so that the lower surface of the base 110 is placed on the clean bench. The relative position of the inner side of the light inlet of the light shield 300 and the edge of the photosensitive surface of the substrate 200 is observed using a high-magnification electron microscope. The width of the four opposite sides is corrected by adjusting the adjustment component 150. The position of the substrate 200 is adjusted by adjusting the eight adjusting components 150 (which are screwed together to adjust the position), ensuring that the light inlet of the light-shielding plate 300 corresponds to the long and short sides of the image sensor, and that their central axes are aligned. This ensures sufficient light intake while preventing the increase of stray light. Finally, after the relative positions are adjusted, the light-shielding plate 300 is bonded to the substrate 200 using adhesive.

[0055] The light-shielding sheet 300 is mounted using the light-shielding sheet mounting fixture 100 provided in this embodiment of the invention. Since the light-shielding sheet 300 is close to the substrate 200 rather than on the camera, and the size of the light inlet of the light-shielding sheet 300 can be controlled, the angle of incident light can be greatly increased, thus significantly ensuring the incident angle A of the camera and reducing the obstructed area of ​​the image. Secondly, since the light-shielding sheet 300 does not contact the photosensitive surface of the substrate 200 and is at a certain distance from the gold wires of the substrate 200, the probability of damage to the substrate 200 can be greatly reduced. The light-shielding sheet 300 can be adhered to the substrate 200 without contacting the photosensitive area or the gold wires of the substrate 200. Furthermore, the mounting design of the light-shielding sheet 300 has low installation cost, high reliability, and allows for the customization of substrates 200 at different costs, exhibiting high compatibility with substrates 200 from different suppliers. Finally, because the light-shielding sheet 300 was calibrated in real time during the mounting process, the mounting accuracy of the light-shielding sheet 300 was ensured.

[0056] In summary, the light-shielding sheet mounting and alignment fixture 100 and the light-shielding sheet 300 mounting system provided in this embodiment of the present invention have a cover plate 130 detachably mounted on the base 110. The cover plate 130 can cover the base 110, and a receiving groove 170 is formed on the bottom side of the cover plate 130. The receiving groove 170 can accommodate the stacked substrate 200 and the light-shielding sheet 300. The base 110 can abut against the bottom side of the substrate 200, and the cover plate 130 can abut against the top side of the light-shielding sheet 300, thereby achieving pre-positioning of the substrate 200 and the light-shielding sheet 300. At the same time, an observation window is also provided on the top side of the cover plate 130, which can observe the relative position of the substrate 200 and the light-shielding sheet 300 at all times. The cover plate 130 has multiple adjusting members 150 on its peripheral wall, each of which extends into the receiving groove 170. These adjusting members 150 can adjust the position of the light-shielding sheet 300 or the substrate 200 in different directions, thereby correcting the relative position of the light-shielding sheet 300 and the substrate 200 and achieving precise alignment between them. Compared to the prior art, the light-shielding sheet patching and alignment fixture 100 provided in this embodiment can adjust the position of the light-shielding sheet 300 and the substrate 200 during the patching process, thereby achieving alignment correction and ensuring the accuracy of the light-shielding sheet 300's alignment.

[0057] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A light-shielding sheet patch alignment fixture, characterized in that, include: Base (110); A cover plate (130) is detachably mounted on a base (110), the cover plate (130) covers the base (110), and a receiving groove (170) is provided on the side of the cover plate (130) near the base (110), the receiving groove (170) is configured to receive a stacked substrate (200) and a light shield (300), and an observation window (190) is provided on the side of the cover plate (130) away from the base (110), the observation window (190) communicating with the receiving groove (170); A plurality of adjusting members (150) are movable on the periphery of the cover plate (130), each of the adjusting members (150) extending into the receiving groove (170) and configured to adjust the position of the light shield (300) and / or the substrate (200) to correct the relative position of the light shield (300) and the substrate (200).

2. The light-shielding sheet patch alignment fixture according to claim 1, characterized in that, The receiving groove (170) includes a first stepped groove (171) and a second stepped groove (173) that are interconnected. The second stepped groove (173) is disposed in the middle of the first stepped groove (171). The first stepped groove (171) is configured to receive the substrate (200), and the second stepped groove (173) is configured to receive the light shield (300). The second stepped groove (173) is connected to the observation window (190).

3. The light-shielding sheet patch alignment fixture according to claim 2, characterized in that, Each of the adjustment members (150) extends through the first stepped groove (171) and is configured to push the substrate (200) to adjust the relative position of the light shield (300) and the substrate (200). The first stepped groove (171) is configured to be larger than the size of the substrate (200), and the second stepped groove (173) is configured to be adapted to the size of the light shield (300).

4. The light-shielding sheet patch alignment fixture according to claim 3, characterized in that, The cover plate (130) has a plurality of first screw holes (131) extending through the first step groove (171) on its peripheral wall, and the plurality of adjusting members (150) are threadedly assembled in the plurality of first screw holes (131) in a corresponding manner.

5. The light-shielding sheet patch alignment fixture according to claim 4, characterized in that, Multiple first screw holes (131) are arranged in pairs on opposite sidewalls of the cover plate (130).

6. The light-shielding sheet patch alignment fixture according to claim 1, characterized in that, A connector (111) is provided on the side of the base (110) away from the cover plate (130). The connector (111) passes through the base (110) and is connected to the cover plate (130) so that the cover plate (130) and the base (110) remain relatively fixed.

7. The light-shielding sheet patch alignment fixture according to claim 6, characterized in that, The connector (111) includes a bolt. The base (110) has a through mounting hole (113). At least one end of the mounting hole (113) is provided with an elastic washer (115). The elastic washer (115) is arranged around the mounting hole (113). The cover plate (130) is provided with a second screw hole (133) on the side near the base (110). The bolt passes through the elastic washer (115) and the mounting hole (113) and is threaded into the second screw hole (133).

8. The light-shielding sheet patch alignment fixture according to claim 1, characterized in that, The base (110) is also provided with a relief groove (117) on the side near the cover plate (130), the relief groove (117) being configured to accommodate the pins of the substrate (200).

9. The light-shielding sheet patch alignment fixture according to claim 1, characterized in that, The edge of the observation window (190) is also provided with a plurality of dispensing notches (191), each of the dispensing notches (191) being connected to the receiving groove (170) and configured to correspond to the edge of the light shield (300).

10. The light-shielding sheet patch alignment fixture according to claim 9, characterized in that, Each of the dispensing notches (191) is arc-shaped and each of the dispensing notches (191) is connected to the observation window.

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