Blind hole electric leakage detection jig

Abstract

The utility model provides a blind hole photoelectric leakage testing jig which comprises a tray and a cover plate, two connecting blocks are arranged at one end of the tray, the cover plate is rotatably connected between the two connecting blocks, a testing groove, a blind hole groove and a circuit groove are formed in one face, facing the cover plate, of the tray, the testing groove is communicated with the blind hole groove, a photosensitive sensor is arranged at the bottom of the blind hole groove, and the testing groove is communicated with the circuit groove. The circuit groove is detachably connected with the test module, one end of the test module extends along the circuit groove and is connected with the display module, the cover plate is provided with a flexible sheet, the cover plate is provided with a first observation port, the flexible sheet is provided with a second observation port, the second observation port is provided with a flexible barrier strip in a surrounding manner, one end of the cover plate back to the connecting block is provided with a chute, and the chute is internally connected with a stop block. The cover plate is arranged to cover the whole display module, the flexible barrier strip prevents external light from entering a detection environment, the stop block further prevents the external light from entering, and the detection result is more accurate; and by arranging the test module, the risk of product damage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, in particular to a blind hole light leakage measurement fixture. Background Art

[0002] With the technological development of electronic products such as smartphones, consumers have an increasing demand for narrow bezels and high screen-to-body ratios. In order to meet these demands, blind hole technology has been introduced in electronic products.

[0003] The blind holes used in the display module are holes that penetrate the backlight module and are used to make under-screen cameras to save space on the screen. Improper opening of blind holes can easily lead to light leakage problems, seriously affecting the quality of the display device and bringing negative impacts to the user experience. Therefore, checking whether the blind holes leak light is an important part of the display module testing process.

[0004] The existing blind hole detection jig places the display module in a suitable slot, uses a photoresistor to align the blind hole, covers the display module with a lower cover to block light, and uses a brightness display to detect the blind hole. However, the cover only covers a portion of the display module. If the light shines obliquely on the display module, there is a possibility that external light will leak under the cover, affecting the accuracy of the detection and not conducive to producing high-quality display modules. In addition, the blind hole detection jig has a single function. The display module needs to be placed separately in the jig for blind hole detection, and then the display module needs to be moved to other electrical testing jigs for subsequent testing. The steps are relatively cumbersome, which increases the number of plugging and unplugging of the display module cable, and increases losses and working hours. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a blind hole light leakage measurement fixture, aiming to solve the problem that the blind hole detection and electrical measurement processes are not efficiently combined in the prior art and there is light interference in the detection environment.

[0006] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] A blind hole photoelectric leakage test fixture comprises a tray and a cover plate, two connecting blocks are arranged at one end of the tray, the cover plate is rotatably connected between the two connecting blocks so that the cover plate is covered on the tray, a test slot is provided on a side of the tray facing the cover plate, the test slot is used to place a display module, the test slot corresponds to the position of the cover plate, a blind hole slot connected to the test slot is provided on the tray, a photosensitive sensor is provided at the bottom of the blind hole slot, the photosensitive sensor corresponds to the blind hole position of the display module, a circuit slot connected to the test slot is provided on the tray, one end of the circuit slot extends from the test slot to the end of the tray facing away from the connecting block, a test module is disassembled and connected in the circuit slot, one end of the test module extends along the circuit slot and is connected to the display module, and the test module is used to connect to an electrical test drive board With the display module, a flexible sheet is arranged on a side of the cover plate facing the tray, and the flexible sheet corresponds to the position of the test slot; a first observation port is arranged on the cover plate, and the first observation port passes through the cover plate; a second observation port is arranged on the flexible sheet, and the second observation port passes through the flexible sheet; the first observation port corresponds to the second observation port in position, and the first observation port and the second observation port are both used to observe the test information displayed on the display module; a flexible baffle is arranged around the second observation port, and the flexible baffle is located on a side of the flexible sheet facing the tray, and the flexible baffle is used to abut the display module; a sliding groove is arranged on the end of the cover plate facing away from the connecting block, and a baffle is slidably connected in the sliding groove, and the baffle corresponds to the position of the test module so that the baffle can slide toward the test module and abut against the test module.

[0008] Compared with the prior art, the beneficial effects of the utility model are: by setting the cover plate so that it can cover the entire display module, the flexible baffle is set to prevent external light from entering the detection environment at the first observation port and the second observation port, the block further prevents external light from entering the direction where the display module is connected to the test module, and the photosensitive sensor is set to detect the blind hole in a completely dark environment, and the detection result is more accurate; by setting the test module, the cable in the display module is transferred, and the test module is adapted to the electrical testing fixture. After the blind hole detection, there is no need to remove the display module, and the electrical testing fixture can be connected to perform electrical testing, and there is no need to plug and unplug the cable of the display module, thereby avoiding multiple losses and the risk of damage, and the information that needs to be displayed in the blind hole detection and electrical testing steps can be displayed at the position of the panel of the display module corresponding to the first observation port.

[0009] Furthermore, first air-avoiding grooves are formed on two opposite side walls of the test slot.

[0010] Furthermore, two light shielding blocks are arranged on a side of the cover plate facing the tray, and the light shielding blocks are adapted to the first air-avoiding grooves.

[0011] Furthermore, two second air-avoiding grooves are provided on the tray, and two opposite sides of the circuit groove are respectively connected to the second air-avoiding grooves.

[0012] Furthermore, the test module includes a test cable and a switching part, the end of the circuit slot facing away from the test slot is connected to the switching part, the test cable is connected between the switching part and the display module, and the switching part is used to connect the electrical test drive board.

[0013] Furthermore, two limiting posts are arranged on the adapter portion, and the limiting posts pass through the adapter portion.

[0014] Furthermore, two limiting holes are formed on a side of the tray facing the adapter portion, and the limiting holes are adapted to the limiting posts.

[0015] Furthermore, the display module is located in a projection area of ​​the flexible sheet on the tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a blind hole light leakage measurement fixture in an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of a partially disassembled structure of a blind hole photoelectric leakage measurement fixture in an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the cover plate in the blind hole photoelectric leakage measurement fixture in the embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the disassembled structure of the cover plate in the blind hole photoelectric leakage measurement fixture in the embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the blind hole photoelectric leakage measurement fixture placed on the display module in the embodiment of the utility model; the main component symbols are as follows:

[0021] tray 100 Connection Block 101 Test slot 110 First escape slot 111 Blind hole slot 120 Light sensor 121 Circuit slot 130 Second escape slot 131 Connector 132 Limit hole 133 Cover 200 First observation port 201 Chute 202 Flexible sheet 210 Second observation port 211 Flexible stop bar 212 Shading block 220 Stopper 230 Test cable 300 Transfer Department 310 Limit column 320 Display module 400

[0022] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] See also Figures 1 to 5The blind hole photoelectric leakage test fixture in the embodiment of the utility model includes a tray 100 and a cover plate 200, two connecting blocks 101 are arranged at one end of the tray 100, and the cover plate 200 is rotatably connected between the two connecting blocks 101 so that the cover plate 200 is covered on the tray 100, a test slot 110 is provided on a side of the tray 100 facing the cover plate 200, and the test slot 110 is used to place the display module 400, and the test slot 110 corresponds to the position of the cover plate 200, a blind hole slot 120 connected to the test slot 110 is provided on the tray 100, a photosensitive sensor 121 is arranged at the bottom of the blind hole slot 120, and the photosensitive sensor 121 corresponds to the blind hole position of the display module 400, and a first air avoidance slot 111 is provided on the opposite side walls of the test slot 110. Preferably, a rotating shaft is arranged between the two connecting blocks 101, and the rotating shaft passes through one end of the cover plate 200 so that the cover plate 200 can be flipped relative to the tray 100. The shape of the test slot 100 is adapted to the display module 400. The photosensor 121 is electrically connected to a computer to read data, and judges whether a subsequent blind hole light leakage test of the display module 400 is qualified based on the data of the good product. The qualified result is transmitted to the line connected to the display module 400 through the computer, so that the display module 400 displays the judgment result on the panel, so that the tester can see the result intuitively. The first air avoidance groove 111 is convenient for the tester to take and place the display module 400. It can be understood that when the cover plate 200 is flipped over and placed on the display module 400, the cover plate 200 can completely cover the display module 400, so that the display module 400 is placed in a dark environment for light leakage testing, thereby preventing external light from interfering with the test environment and thus affecting the test results. Moreover, for products whose projection area on the tray 100 is smaller than the bottom area of ​​the test slot 110, it is only necessary to align the blind hole with the photosensor, and light leakage detection can be performed in the blind hole light leakage testing fixture. The cover plate 200 can always ensure that its test environment is relatively ideal.

[0027] The tray 100 is provided with a circuit slot 130 connected to the test slot 110. One end of the circuit slot 130 extends from the test slot 110 to the end of the tray 100 facing away from the connection block 101. The circuit slot 130 is disassembled to connect a test module. One end of the test module extends along the circuit slot 130 and is connected to the display module 400. The test module is used to connect the electric test drive board and the display module 400. The test module includes a test cable 300 and a transfer portion 310. The end of the circuit slot 130 facing away from the test slot 110 is connected to the test module 400. The adapter part 310 is provided with two limit posts 320, and the limit posts 320 penetrate the adapter part 310. Two limit holes 133 are provided on one side of the tray 100 facing the adapter part 310, and the limit holes 133 are matched with the limit posts 320. Two second air avoidance grooves 131 are provided on the tray 100, and the opposite sides of the circuit groove 130 are respectively connected to the second air avoidance grooves 131. Preferably, the bottom surface of the circuit slot 130 is lower than the bottom surface of the test slot 110, and a connecting seat 132 is arranged inside the end of the circuit slot 130 facing away from the test slot 110, and the connecting seat 132 is used to connect the adapter part 310 and adapt to the bottom surface of the adapter part 310, the limiting column 320 adopts bolts, and the second air avoidance groove 131 is convenient for the tester to take and place the test cable 300. It can be understood that the blind hole leakage test fixture is combined with the electrical test device to perform electrical testing on the display module 400. Different electrical test drive boards are connected to the display module 400, and the number of plug-in and unplugging times is large. In addition, the plug-in and unplugging paths lack specifications. Improper operation by the tester is likely to cause loss to the interface of the display module 400 connected to the external circuit, affecting the yield rate. By using the test module, in the subsequent various electrical testing processes, it is only necessary to plug and unplug the external circuit and the test module to perform electrical testing. Specifically, the adapter 310 is plugged and unplugged, and the adapter 310 is fixed in the circuit slot 130, which is convenient for plugging and unplugging. The test cable 300 is arranged along the circuit slot 130 and is connected to the display module 400 in the horizontal direction, avoiding the shaking of the wires and the displacement of the test module during the plug-in and unplugging process, thereby protecting the display module 400 and taking into account the standardization and convenience of electrical testing operations.

[0028] A flexible sheet 210 is provided on the side of the cover plate 200 facing the tray 100, and the flexible sheet 210 corresponds to the position of the test slot 110. The display module 400 is located in the projection area of ​​the flexible sheet 210 on the tray 100. Two shading blocks 220 are provided on the side of the cover plate 200 facing the tray 100, and the shading blocks 220 are adapted to the first air-avoiding groove 111. A first observation port 201 is provided on the cover plate 200, and the first observation port 201 passes through the cover plate 200. A second observation port 211 is provided on the flexible sheet 210, and the second observation port 211 passes through the flexible sheet 210, and the first observation port 201 and the test slot 111 are aligned. The second observation port 211 corresponds in position, the first observation port 201 and the second observation port 211 are both used to observe the test information displayed on the display module 400, a flexible baffle 212 is arranged around the second observation port 211, the flexible baffle 212 is located on the side of the flexible sheet 210 facing the tray 100, the flexible baffle 212 is used to abut the display module 400, a slide groove 202 is provided at one end of the cover plate 200 facing away from the connecting block 101, a baffle 230 is slidably connected in the slide groove 202, and the baffle 230 corresponds in position to the test module so that the baffle 230 can slide toward the test module and abut against the test module. Preferably, the flexible sheet 210 and the flexible baffle 212 are both made of sponge, the top surface of the display module 400 is higher than the top surface of the tray 100, and when the cover plate 200 is turned over and pressed down, the flexible sheet 210 can completely cover the display module 400 and press the display module 400, and the display modules 400 of different sizes can be fixed by the blind hole light leakage test fixture, and the shading block 220 is made of sponge. When the cover plate 200 is pressed down, the flexible baffle 212 abuts against and further presses the panel of the display module 400. When the tester observes through the first observation port 201 and the second observation port 211, the flexible baffle 212 blocks external light. Isolation, the thickness of the block 230 is greater than the thickness of the cover plate 200. When the block 230 slides downward to abut the test module, external light is isolated. It can be understood that the flexible baffle 212, the shading block 220 and the block 230 can prevent weak external oblique light from entering the test environment, avoid interference with the test environment, and ensure accurate test results, while taking into account the convenience of the tester's observation of the test results. In the subsequent electrical testing process, the tester can still observe the test results and test phenomena displayed on the display module 400 through the first observation port 201 and the second observation port 211, and there is no need to move the display module 400, which is efficient and safe.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A blind hole photoelectric leakage measurement fixture, characterized in that: The invention comprises a tray and a cover plate, wherein two connecting blocks are arranged at one end of the tray, and the cover plate is rotatably connected between the two connecting blocks so that the cover plate is covered on the tray, a test slot is arranged on a side of the tray facing the cover plate, and the test slot is used to place a display module, and the test slot corresponds to the position of the cover plate, a blind hole slot connected to the test slot is arranged on the tray, a photosensitive sensor is arranged at the bottom of the blind hole slot, and the photosensitive sensor corresponds to the blind hole position of the display module, a circuit slot connected to the test slot is arranged on the tray, one end of the circuit slot extends from the test slot to the end of the tray facing away from the connecting block, a test module is disassembled and connected in the circuit slot, one end of the test module extends along the circuit slot and is connected to the display module, and the test module is used to connect the electric test drive board with the display module group, a flexible sheet is provided on a side of the cover plate facing the tray, and the flexible sheet corresponds to the position of the test slot, a first observation port is provided on the cover plate, and the first observation port passes through the cover plate, a second observation port is provided on the flexible sheet, and the second observation port passes through the flexible sheet, the first observation port corresponds to the second observation port, and the first observation port and the second observation port are both used to observe the test information displayed on the display module, a flexible baffle is provided around the second observation port, the flexible baffle is located on the side of the flexible sheet facing the tray, and the flexible baffle is used to abut the display module, a sliding groove is provided on the end of the cover plate facing away from the connecting block, a sliding connection block is slidably connected in the sliding groove, and the block corresponds to the position of the test module so that the block can slide toward the test module and abut against the test module.

2. The blind hole photoelectric leakage measuring fixture according to claim 1, characterized in that: The first avoidance grooves are formed on two opposite side walls of the test groove.

3. The blind hole photoelectric leakage measuring fixture according to claim 2, characterized in that: Two light shielding blocks are arranged on a side of the cover plate facing the tray, and the light shielding blocks are adapted to the first air-avoiding grooves.

4. The blind hole photoelectric leakage measuring fixture according to claim 1, characterized in that: Two second air-avoiding grooves are arranged on the tray, and two opposite sides of the circuit groove are respectively connected to the second air-avoiding grooves.

5. The blind hole light leakage measurement fixture according to claim 1, characterized in that: The test module includes a test cable and a switching part. The end of the circuit slot facing away from the test slot is connected to the switching part. The test cable is connected between the switching part and the display module. The switching part is used to connect the electrical test drive board.

6. The blind hole photoelectric leakage measuring fixture according to claim 5, characterized in that: Two limiting posts are arranged on the adapter portion, and the limiting posts penetrate through the adapter portion.

7. The blind hole photoelectric leakage measuring fixture according to claim 6, characterized in that: Two limiting holes are formed on a side of the tray facing the adapter portion, and the limiting holes are adapted to the limiting posts.

8. The blind hole photoelectric leakage measurement fixture according to claim 1, characterized in that: The display module is located in the projection area of ​​the flexible sheet on the tray.

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