A fixture for detecting defects in Micro-OLEDs

Abstract

This utility model discloses a fixture for Micro-OLED defect detection, belonging to the field of tooling and fixture technology. It includes a vacuum seat, an insulating seat, and a cover plate. The insulating seat is disposed on the vacuum seat, and a groove is provided on one edge of the insulating seat. An OLED flexible flat cable carrier is disposed in the groove, and an OLED flexible flat cable positioning groove is provided on the OLED flexible flat cable carrier. One end of the cover plate is hinged to one end of the insulating seat, and the other end of the cover plate is snapped into place with the other end of the insulating seat. A probe holder is provided on the cover plate at a position corresponding to the OLED flexible flat cable carrier. A control circuit board is provided on the top of the cover plate, and the control circuit board is electrically connected to the probes on the probe holder. Its structure is simple and easy to use. It not only ensures the consistency of workpiece placement but also allows for rapid lighting of the OLED under test without damaging the gold fingers of the OLED flexible flat cable, ensuring a high product pass rate. Workpiece assembly and disassembly are also convenient, greatly improving work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of tooling and fixture technology, specifically relating to a fixture for detecting defects in Micro-OLEDs. Background Technology

[0002] The AR glasses industry is developing rapidly. AR glasses are a technology that perfectly overlays virtual information with the real world, allowing users to view virtual information such as text, images, videos, and 3D models without affecting their daily lives. However, AR glasses have very high requirements for the image quality of Micro-OLED (OLED). Problems such as black spots or missing pixels will greatly affect the user experience. Currently, OLED inspection mainly relies on manual assembly and microscopic inspection after lighting. This method is not only inefficient and labor-intensive, but also prone to missing defects. Furthermore, during the connection and power-on process, the gold fingers of the OLED flexible cable are easily broken, leading to product scrap. Utility Model Content

[0003] The purpose of this invention is to provide a fixture for detecting defects in Micro-OLEDs, which has a simple structure, is easy to use, and can effectively improve the above-mentioned problems.

[0004] The embodiments of this utility model are implemented as follows:

[0005] This utility model provides a fixture for detecting defects in Micro-OLEDs, including a vacuum seat, an insulating seat, and a cover plate. The insulating seat is disposed on the vacuum seat, and a groove is provided at one edge of the insulating seat. An OLED flexible flat cable carrier is disposed in the groove, and an OLED flexible flat cable positioning groove is provided on the OLED flexible flat cable carrier. One end of the cover plate is hinged to one end of the insulating seat, and the other end of the cover plate is snapped into the other end of the insulating seat. A probe holder is provided on the cover plate at a position corresponding to the OLED flexible flat cable carrier. A control circuit board is provided on the top of the cover plate, and the control circuit board is electrically connected to the probe on the probe holder.

[0006] Furthermore, the cover plate has a mounting hole at a position corresponding to the probe base, and a probe base fixing plate is provided in the mounting hole. The probe base is disposed on the side of the probe base fixing plate facing the OLED flexible flat cable carrier.

[0007] Furthermore, a probe guide plate is provided on the side of the probe holder away from the probe holder fixing plate. The probe guide plate is provided with a probe guide hole. The probe on the probe holder is inserted into the probe guide hole. The probe guide plate and the probe holder fixing plate are connected by a spring.

[0008] Furthermore, the vacuum seat has an OLED main body positioning groove at a location corresponding to the OLED flexible cable carrier.

[0009] Furthermore, the positioning groove of the OLED body is provided with a vacuum adsorption hole.

[0010] Furthermore, the upper end of the vacuum seat is provided with a recess, and the insulating seat is disposed in the recess.

[0011] Furthermore, one end of the cover plate is connected to one end of the insulating base by a snap fastener.

[0012] The beneficial effects of this utility model are as follows:

[0013] The Micro-OLED defect detection fixture provided by this utility model has a simple structure and is easy to use. It not only ensures the consistency of workpiece placement, but also enables the OLED under test to be lit up quickly without damaging the gold fingers of the OLED flexible cable, thus ensuring the product qualification rate. The workpiece is also easy to disassemble and assemble, which greatly improves work efficiency. Attached Figure Description

[0014] 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 from these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the structure of the fixture for detecting Micro-OLED defects provided in this embodiment of the utility model;

[0016] Figure 2 for Figure 1 Exploded view.

[0017] In the diagram: 1-vacuum seat; 11-OLED main body positioning groove; 2-insulating seat; 21-groove; 3-cover plate; 31-mounting hole; 4-OLED flexible flat cable carrier; 41-OLED flexible flat cable positioning groove; 5-probe seat fixing plate; 6-probe seat; 7-probe guide plate; 71-probe guide hole; 8-spring; 9-control circuit board. Detailed Implementation

[0018] 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, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0019] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0020] 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.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "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 that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to 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.

[0022] 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, a direct connection, or an indirect connection through an intermediate medium; or 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.

[0023] refer to Figure 1 and 2 As shown, this utility model provides a fixture for detecting defects in Micro-OLEDs, including a vacuum seat 1, an insulating seat 2, and a cover plate 3.

[0024] Vacuum seat 1 is used to connect to a vacuum generator. Vacuum seat 1 has a groove at its upper end. Insulating seat 2 is placed in the groove. A groove 21 is provided on one side edge of the upper surface of insulating seat 2. An OLED flexible flat cable carrier 4 is provided in the groove 21. An OLED flexible flat cable positioning groove 41 is provided on the OLED flexible flat cable carrier 4. The shape of the OLED flexible flat cable positioning groove 41 is the same as that of the flexible flat cable of the workpiece to be tested, so as to ensure accurate positioning.

[0025] One end of the cover plate 3 is hinged to one end of the insulating base 2, and the other end of the cover plate 3 is snapped onto the other end of the insulating base 2, which facilitates closing or opening the cover plate 3. The cover plate 3 has a mounting hole 31 at the position corresponding to the OLED flexible flat cable carrier 4. A probe seat fixing plate 5 is provided in the mounting hole 31. A probe seat 6 is provided on the side of the probe seat fixing plate 5 facing the OLED flexible flat cable carrier 4. A probe is provided on the side of the probe seat 6 facing the OLED flexible flat cable carrier 4. A probe guide plate 7 is provided on the probe seat 6 on the side of the probe. A probe guide hole 71 is provided on the probe guide plate 7. The probe on the probe seat 6 is inserted into the probe guide hole 71. The probe guide plate 7 and the probe seat fixing plate 5 are connected by a spring 8. When the spring 8 is in a free state, the probe is located inside the probe guide hole 71. When the spring 8 is compressed, the distance between the probe guide plate 7 and the probe seat fixing plate 5 decreases, and the probe on the probe seat 6 passes through the probe guide hole 71 of the probe guide plate 7.

[0026] The top of the cover plate 3 is provided with a control circuit board 9, which is electrically connected to the probe on the probe holder 6. The control circuit board 9 is also used for electrical connection with the PC.

[0027] The upper surface of the vacuum base 1 is provided with an OLED main body positioning groove 11 at a position corresponding to the OLED flexible flat cable carrier 4. The OLED main body positioning groove 11 is also provided with a vacuum adsorption hole. When installing the OLED to be tested, the main body of the OLED is locked in the OLED main body positioning groove 11 and is adsorbed and fixed by the vacuum adsorption hole. The OLED flexible flat cable is locked in the OLED flexible flat cable positioning groove 41, thereby fixing the OLED to be tested and facilitating testing.

[0028] The working principle of the Micro-OLED defect detection fixture provided in this embodiment is as follows:

[0029] The fixture is fixed on the testing equipment. Then, the PC-based testing software is opened, and the height and position of the camera and light source on the testing equipment are adjusted. The OLED to be tested is then fixed on the fixture, that is, the main body of the OLED is clamped in the OLED main body positioning groove 11 and fixed by vacuum adsorption. The OLED's flexible cable is clamped in the OLED flexible cable positioning groove 41. Then, the cover plate 3 is closed, and the probes on the probe holder 6 can contact the gold fingers on the Micro-OLED to achieve conductivity. When the control circuit board 9 is powered on, it can control the Micro-OLED to light up. The control circuit board 9 can also control it to turn off. Each Micro-OLED needs to be photographed twice by the camera. Once when the Micro-OLED is lit and the light source is off, the camera takes one picture. The other time when the Micro-OLED is not lit and the light source is emitting, the camera takes another picture. Then, the software analyzes the images captured by the camera in the two pictures to determine whether the Micro-OLED has dirt, black spots, scratches, or other abnormalities, thus completing the test.

[0030] This utility model is not limited to the above-mentioned optional embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in its shape or structure, any technical solution that falls within the scope of the claims of this utility model shall be protected by this utility model.

Claims

1. A fixture for detecting defects in Micro-OLEDs, characterized in that: The device includes a vacuum seat, an insulating seat, and a cover plate. The insulating seat is disposed on the vacuum seat. A groove is provided at one edge of the insulating seat, and an OLED flexible flat cable carrier is disposed in the groove. The OLED flexible flat cable carrier has an OLED flexible flat cable positioning groove. One end of the cover plate is hinged to one end of the insulating seat, and the other end of the cover plate is snapped into the other end of the insulating seat. A probe holder is provided on the cover plate at a position corresponding to the OLED flexible flat cable carrier. A control circuit board is provided on the top of the cover plate, and the control circuit board is electrically connected to the probe on the probe holder.

2. The fixture for detecting defects in Micro-OLEDs according to claim 1, characterized in that: The cover plate has a mounting hole at a position corresponding to the probe base, and a probe base fixing plate is provided in the mounting hole. The probe base is disposed on the side of the probe base fixing plate facing the OLED flexible flat cable carrier.

3. The fixture for detecting defects in Micro-OLEDs according to claim 2, characterized in that: A probe guide plate is provided on the side of the probe holder away from the probe holder fixing plate. The probe guide plate has a probe guide hole. The probe on the probe holder is inserted into the probe guide hole. The probe guide plate and the probe holder fixing plate are connected by a spring.

4. The fixture for detecting defects in Micro-OLEDs according to claim 3, characterized in that: The vacuum holder has an OLED main body positioning groove at a location corresponding to the OLED flexible cable carrier.

5. The fixture for detecting defects in Micro-OLEDs according to claim 4, characterized in that: The OLED body has a vacuum adsorption hole in the positioning groove.

6. The fixture for detecting defects in Micro-OLEDs according to claim 1, characterized in that: The upper end of the vacuum seat is provided with a groove, and the insulating seat is disposed in the groove.

7. The fixture for detecting defects in Micro-OLEDs according to claim 1, characterized in that: One end of the cover plate is connected to one end of the insulating base by a snap fastener.

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