False pressure detection device used before Mini LED glue sealing

Abstract

The utility model discloses a false pressure detection device before glue sealing of a Mini LED, and relates to the technical field of processing technology and detection design, the false pressure detection device before glue sealing of the Mini LED comprises a test platform, an equipment housing and an alignment Mark display, the front end of the equipment housing is provided with a power supply main switch, and the front end of the equipment housing is provided with an alignment Mark display. A test platform vacuum switch is arranged on the left side of the upper surface of the equipment shell, a test start key and a test pause key are arranged on the right side of the upper surface of the equipment shell, and a pneumatic lifting pressing rod device is further fixedly installed on the upper surface of the equipment shell. The alignment Mark display is observed to accurately adjust the Y-axis and X-axis correction adjusting knobs of the platform, Marks of the Y-axis and X-axis correction adjusting knobs are made to coincide with OK, a test start key is pressed down to detect whether the Mini LED light source plate has defects such as dead pixels and no light emission, the detection device can greatly reduce the flow of defective products into the post-process flow, and the yield of the Mini LED after glue sealing is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of process technology and detection design, and in particular to a false pressure detection device before Mini LED sealing. Background Art

[0002] As a new generation of display technology, Mini LED has excellent characteristics such as low power consumption, high integration, high display, and long life, and has shown a booming development trend in recent years. Mini LED has always attracted much attention, but the defect rate and lack of detection methods in its production process have led to its high cost, which is a major challenge in the production of Mini LED; with the continuous upgrading of the industry, the yield rate has become a key factor affecting the quality and cost of terminal products, and its role in the industrial chain has become increasingly significant. Improving the pre-sealing test of LED chips is the key to improving its yield rate;

[0003] Due to the rapid development of Mini LED display, display giants are currently promoting Mini LED display technology products and accelerating the layout of the optoelectronic display industry. The utility model technology only needs to use a false pressure detection device to detect whether there are dead pixels, no light, etc. on the LED chip before sealing, thereby improving its yield after sealing, and can be promoted on a large scale. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a false pressure detection device before Mini LED sealing, which can detect whether the LED chip has dead pixels, no light, etc. before sealing, thereby improving its yield after sealing, and has a technical effect that can be promoted on a large scale.

[0006] (II) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A false pressure detection device before Mini LED sealing includes: a test platform, a device housing and an alignment Mark display, wherein a main power switch is arranged at the front end of the device housing, a test platform vacuum switch is arranged on the left side of the upper surface of the device housing, a test start button and a test pause button are arranged on the right side of the upper surface of the device housing, and a pneumatic lifting and lowering pressure rod device is also fixedly installed on the upper surface of the device housing.

[0009] Preferably: a rubber pressure head is arranged in the middle part of the pneumatic lifting and lowering pressure rod device, and a false pressure flexible circuit board is arranged at the bottom of the rubber pressure head.

[0010] Preferably: the test platform is located in the middle part of the upper surface of the device housing, the rubber pressure head on the pneumatic lifting pressure rod device is located directly above the test platform, and the Mini LED light source board to be tested is placed in the test platform.

[0011] Preferably: a platform Y-axis correction adjustment knob and a platform X-axis correction adjustment knob are provided at the edge of the test platform.

[0012] (III) Beneficial effects

[0013] Through this design scheme, after the Mini LED chip components are packaged on the carrier board, a false pressure detection device is used to test the Mini LED light source board before sealing to detect whether the LED chip has defects such as dead pixels and no light, thereby reducing the flow of defective products into the subsequent process flow, improving the yield of Mini LED after sealing, and reducing the disassembly and repair of products after sealing, which can save production costs and material loss costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0015] Figure 1 It is the overall structure diagram of the utility model.

[0016] Legend: 1. Alignment Mark display; 2. Rubber pressure head; 3. Mini LED light source board; 4. Test platform vacuum switch; 5. Test platform; 6. Main power switch; 7. Pneumatic lifting and lowering rod device; 8. Fake pressure flexible circuit board; 9. Platform X-axis correction adjustment knob; 10. Test start button; 11. Test pause button; 12. Platform Y-axis correction adjustment knob; 13. Equipment casing. DETAILED DESCRIPTION

[0017] The embodiment of the present application provides a false pressure detection device before Mini LED sealing, which effectively achieves the false pressure detection device to detect whether the LED chip has dead pixels, no light, etc. before sealing, thereby improving its yield after sealing, and has a technical effect that can be promoted on a large scale.

[0018] Example

[0019] The overall idea of ​​the technical solution in the embodiment of the present application is as follows:

[0020] like Figure 1As shown, in view of the problems existing in the prior art, the utility model provides a false pressure detection device before Mini LED sealing, including a test platform 5, a device housing 13 and an alignment Mark display 1, wherein a main power switch 6 is arranged at the front end of the device housing 13, a test platform vacuum switch 4 is arranged on the left side of the upper surface of the device housing 13, a test start button 10 and a test pause button 11 are arranged on the right side of the upper surface of the device housing 13, and a pneumatic lifting and lowering pressure rod device 7 is also fixedly installed on the upper surface of the device housing 13;

[0021] A rubber pressure head 2 is provided in the middle part of the pneumatic lifting and pressing rod device 7, and a fake pressure flexible circuit board 8 is provided at the bottom of the rubber pressure head 2. The test platform 5 is located in the middle part of the upper surface of the equipment housing 13. The rubber pressure head 2 on the pneumatic lifting and pressing rod device 7 is located directly above the test platform 5. The Mini LED light source board 3 to be tested is placed in the test platform 5, so that the light source board Mark and the flexible circuit board Mark are pre-aligned. The edge of the test platform 5 is provided with a platform Y-axis correction adjustment knob 12 and a platform X-axis correction adjustment knob 9;

[0022] The alignment Mark display 1 is connected to the main power switch 6 and the test start button 10 to control its switch and display functions. The test platform vacuum switch 4 is used to control the vacuum adsorption function on the test platform 5 to ensure the fit between the Mini LED light source board 3 and the false pressure flexible circuit board 8. It is connected to the main power switch 6. The test platform 5 is connected to the main power switch 6 and the test start button 10 and the test pause button 11. The main power switch 6 is used to control the power supply of the entire device and is connected to all components that require power. All components are powered by the main power switch 6 and are controlled by their respective control devices (such as the pneumatic lifting and pressing rod device 7, the test platform vacuum switch 4, the test start button 10, etc.) to complete the false pressure detection task before the Mini LED is sealed.

[0023] Working principle: Place the Mini LED light source board 3 on the test platform 5, pre-align the light source board Mark and the flexible circuit board Mark, turn on the test platform vacuum switch 4 to adsorb the light source board on the platform and fix it, observe the alignment Mark display 1 and accurately adjust the platform Y-axis and X-axis correction adjustment knobs to make their two Marks coincide OK, press the test start button 10 to detect whether the Mini LED light source board 3 has defects such as dead pixels and no light. This detection device can greatly reduce the flow of defective products into the post-process flow, improve the yield of Mini LED after sealing, reduce disassembly and rework after sealing, and save production and manufacturing costs and material loss costs.

[0024] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A false pressure detection device before Mini LED encapsulation, characterized in that: A false pressure detection device before Mini LED encapsulation comprises: a test platform (5), a device housing (13) and an alignment mark display (1); A main power switch (6) is arranged at the front end of the device housing (13), a test platform vacuum switch (4) is arranged on the left side of the upper surface of the device housing (13), and a test start key (10) and a test pause key (11) are arranged on the right side of the upper surface of the device housing (13); A pneumatic lifting and lowering rod device (7) is also fixedly mounted on the upper surface of the equipment housing (13).

2. A false pressure detection device before Mini LED encapsulation as claimed in claim 1, characterized in that: A rubber pressure head (2) is arranged in the middle part of the pneumatic lifting and lowering pressure rod device (7), and a false pressure flexible circuit board (8) is arranged at the bottom of the rubber pressure head (2).

3. A false pressure detection device before Mini LED encapsulation as claimed in claim 2, characterized in that: The test platform (5) is located in the middle part of the upper surface of the equipment housing (13).

4. A false pressure detection device before Mini LED encapsulation as claimed in claim 3, characterized in that: The rubber pressure head (2) on the pneumatic lifting pressure rod device (7) is located directly above the test platform (5).

5. A false pressure detection device before Mini LED encapsulation as claimed in claim 4, characterized in that: A Mini LED light source panel (3) to be tested is placed in the test platform (5).

6. A false pressure detection device before Mini LED encapsulation as claimed in claim 5, characterized in that: A platform Y-axis correction adjustment knob (12) and a platform X-axis correction adjustment knob (9) are arranged at the edge of the test platform (5).

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