Panel test components and TOS test equipment

Abstract

The present invention provides a panel test component and a TOS test device, which belong to the field of display technology and can solve the problem that a single display panel cannot be tested by TOS. The panel test component of the present invention includes a base and a bearing module, the bearing module is fixedly connected to the base, and is used to carry and fix the single display panel to be tested; the first surface of the bearing module includes a bearing area, and the size and area of ​​the bearing area match the size and area of ​​the single display panel to be tested. The bearing module can be used to carry and fix a single display panel, and when the panel test component is installed on a traditional TOS test device, a touch short circuit / open circuit test can be performed on a single display panel. In this way, both the TOS test and the EAC test are performed on a single display panel. When the two test results are inconsistent, it can be determined that there is a problem with the TOS test device, thereby improving the TOS test effect, and providing a TOS test function for a single display panel, thereby realizing the multifunctionality of the TOS test.

Description

Technical Field

[0001] The invention belongs to the field of display technology, and in particular relates to a panel testing component and a TOS testing device. Background Art

[0002] Flexible AM-OLED (Active Matrix Organic Light Emitting Diode) is widely used in mobile phones and wearable electronic products due to its advantages such as high chromaticity, high contrast, wide viewing angle and bendability. Flexible AM-OLED equipped with On Cell Touch (external touch) is thinner and lighter and is widely favored by the market. The On Cell Touch wiring consists of the transmission line signal wiring T1 to Tn and the receiving signal wiring R1 to Rn. In the process of making the On Cell Touch wiring, touch electrode short circuit / open circuit defects may occur. Usually, TOS (Touch Open Short) test equipment is used in the TSP (Touch Sensor Panel) test stage to detect such defects, to prevent defective products from flowing into the back-end process and causing material waste, and to monitor product defects in a timely manner.

[0003] The EAC (EVEN AFTER CELL) process is the back-end process of the TSP process. Therefore, the TOS test is performed first and then the EAC test. If the TOS test results are consistent with the EAC test results, it means that the product is qualified. However, the product has to go through many processes from the TOS test to the EAC test. The traditional TOS test is performed on half a panel, while the EAC test is performed on a single display panel. If the TOS test results are inconsistent with the EAC test results, it is impossible to determine whether there is a problem with the product itself or the TOS test equipment, and it is difficult to locate the problem. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art, and to provide a panel test component and TOS test equipment which are simple in structure, easy to implement, and can improve the TOS test effect and realize the multifunctionality of TOS test.

[0005] In a first aspect, an embodiment of the present invention provides a test assembly, comprising a base and a carrying module, wherein the carrying module is fixedly connected to the base and is used to carry and fix a single display panel to be tested;

[0006] The first surface of the carrying module includes a carrying area, and the size and area of ​​the carrying area match the size and area of ​​the single display panel to be tested.

[0007] In a second aspect, an embodiment of the present invention further provides a TOS testing device, comprising the panel testing assembly as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A schematic diagram of the structure of a panel test assembly according to an embodiment of the present invention;

[0009] Figure 2 Schematic diagram of the structure of a TOS testing device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0010] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0011] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one", "one" or "the" do not indicate quantity restrictions, but indicate that there is at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0012] An embodiment of the present invention provides a panel test assembly, such as Figure 1 As shown, the panel test assembly includes a base 1 and a carrying module 2, and the carrying module 2 is fixedly connected to the base 1 and is used to carry and fix a single display panel to be tested. The first surface 21 of the carrying module 2 includes a carrying area 22, and the size and area of ​​the carrying area 22 match the size and area of ​​the single display panel to be tested.

[0013] The size and area of ​​the bearing region 22 match the size and area of ​​the single display panel to be tested, which means that the size and area of ​​the bearing region 22 are slightly larger than the size and area of ​​the single display panel to be tested, where the size includes length and / or width.

[0014] The panel test assembly of the embodiment of the present invention includes a base 1 and a carrier module 2 fixedly connected to the base 1. The first surface 21 of the carrier module 2 includes a carrier area 22. The size and area of ​​the carrier area 22 match the size and area of ​​the single display panel to be tested. In this way, the carrier module 2 can be used to carry and fix the single display panel. When the panel test assembly is installed on a traditional TOS test device, a touch short circuit / open circuit test can be performed on a single display panel. In this way, both the TOS test and the EAC test are performed on a single display panel. When the two test results are inconsistent, it can be determined that there is a problem with the TOS test device, thereby improving the TOS test effect, and providing a TOS test function for a single display panel, thereby realizing the multifunctionality of TOS testing.

[0015] In some embodiments, a plurality of through air holes 25 are provided in the bearing area of ​​the first surface 21, and the bearing module 2 is also used to clean, dry or protect the single display panel carried and fixed, and to switch between a cleaning protection mode and an adsorption mode; wherein, in the adsorption mode, the bearing module 2 uses compressed dry air and the air holes 25 to vacuum adsorb the single display panel carried and fixed, and in the cleaning protection mode, the bearing module 2 uses compressed dry air and the air holes 25 to clean, dry or protect the single display panel carried and fixed.

[0016] In an embodiment of the present invention, when a single display panel to be tested is fixed on a panel test assembly, if the position and angle of the single display panel need to be adjusted, compressed dry air and air holes 25 can be used to blow air on the carried display panel to avoid direct contact and friction between the single display panel and the first surface 21 of the carrying module 2, thereby protecting the single display panel.

[0017] In the embodiment of the present invention, for a single display panel to be tested, the carrier module 2 can not only realize the vacuum adsorption function, but also realize the cleaning and drying function or the protection function, and can also switch between the above functions so as to select the function as needed. The carrier module 2 switches between different functions, and the structure of the panel test assembly can be simplified while ensuring multiple functions.

[0018] In order to achieve better adsorption effect, better cleaning and drying effect and better protection effect, such as Figure 1 As shown, in some embodiments, the air holes 25 are evenly distributed in a matrix within the load-bearing area 22 .

[0019] In some embodiments, Figure 1As shown, the carrier module 2 includes a cavity 23 and a conversion unit 24, the conversion unit 24 is fixedly connected to the base 1, and one end of the conversion unit 24 is connected to the cavity 23 through a first pipe 26, and the other end of the conversion unit 24 is connected to an air source (not shown in the figure) through a second pipe 27, and the air source is used to provide compressed dry air (Compress Dry Air, CDA). The conversion unit 24 is used to form a vacuum in the cavity 23 using compressed dry air, or to transport compressed dry air to the cavity 23.

[0020] The conversion unit 24 can switch between the adsorption mode and the cleaning protection mode. In the adsorption mode, the conversion unit 24 allows the compressed dry air delivered to the conversion unit 24 to form a high-speed airflow, forming a negative pressure in the cavity 23, thereby forming a vacuum. The greater and higher the flow speed of the airflow, the lower the air pressure in the cavity 23, and therefore the stronger the adsorption capacity; in the cleaning protection mode, the conversion unit 24 directly delivers the compressed dry air delivered to the conversion unit 24 to the cavity 23 via the first pipe 26, and the compressed dry air is ejected from each air hole 25 on the first surface 21 to clean and dry or protect the single display panel to be tested carried on the first surface 21.

[0021] In some embodiments, Figure 1 As shown, the carrier module 2 may further include an adjusting unit 28, which is disposed on the second pipe 27 and is used to adjust the gas supply of the second pipe 27 in the cleaning protection mode, or to adjust the air pressure in the second pipe 27 in the adsorption mode, thereby adjusting the vacuum degree in the cavity 23.

[0022] In the embodiment of the present invention, the regulating unit 28 may be a valve, for example, a manual regulating valve.

[0023] For both the cleaning protection mode and the adsorption mode, the adjustment unit 28 can realize the opening and closing functions. In the cleaning protection mode, the cleaning protection mode can be turned on or off by opening or closing the valve; in the adsorption mode, the adsorption mode can be turned on or off by opening or closing the valve. It should be noted that in the adsorption mode, the air pressure in the second pipe 27 can be controlled by controlling the opening of the valve, for example, by increasing the opening of the valve, the vacuum degree in the cavity 23 is reduced; in the cleaning protection mode, the air supply to the cavity 23 can be directly controlled by controlling the opening of the valve, for example, by increasing the opening of the valve, the air supply to the cavity 23 is increased. The larger the air supply, the more compressed dry air is ejected from the pores 25 per unit time, and the better the cleaning and drying effect; the higher the vacuum degree, the stronger the adsorption capacity, and the more firmly the single display panel to be tested is adsorbed.

[0024] In some embodiments, the base 1 is made of wear-resistant plastic, and engineering plastics may be selected. Engineering plastics have good wear resistance. When the panel test assembly is installed on the test platform of a traditional TOS test equipment, it will not cause damage to the test platform of the TOS test equipment.

[0025] The panel test assembly of the embodiment of the present invention has a carrying area 22 that can carry a 5-inch to 8-inch display panel, so as to implement a TOS test on a single 5-inch to 8-inch display panel. Therefore, in some embodiments, the carrying area 22 is rectangular, the length of the rectangle can be 15-20 cm, and the width of the rectangle can be 22-30 cm. It is known to those skilled in the art that the dimensions of the carrying area 22 include but are not limited to the above dimensions.

[0026] It should be noted that before performing the TOS test on a single display panel using the panel test assembly, the position and direction of the single display panel may be manually adjusted within the bearing area 22 .

[0027] The following combination Figure 1 , the process of fixing the display panel to be tested by the panel testing assembly of the present invention is described in detail.

[0028] The single display panel to be tested is placed in the carrying area 22 of the panel test assembly, and the control conversion unit 24 is in the cleaning protection mode. The compressed dry air provided by the air source is used to blow air to the single display panel to be tested. After adjusting the position and direction of the single display panel to be tested, the control conversion unit 24 is switched from the cleaning protection mode to the adsorption mode, and the compressed dry air provided by the air source is used to form a vacuum in the cavity 23, and the single display panel to be tested is adsorbed and fixed on the first surface 21 of the carrying module 2 with the help of the air holes 25.

[0029] The embodiment of the present invention also provides a TOS testing device, such as Figure 2 As shown, the TOS testing device includes a panel testing assembly 10, and the panel testing assembly 10 is the panel testing assembly as described above.

[0030] Since the aforementioned panel test assembly can carry and fix a single display panel to be tested, the TOS test device including the panel test assembly can perform a touch short circuit / open circuit test on the single display panel to be tested. In this way, both the TOS test and the EAC test are performed on a single display panel. When the two test results are inconsistent, it can be determined that there is a problem with the TOS test device, thereby improving the TOS test effect, providing a TOS test function for a single display panel, and realizing the multifunctionality of the TOS test.

[0031] In some embodiments, Figure 2As shown, the TOS test equipment also includes a test platform 20, combined with Figure 1 and Figure 2 As shown, the base 1 in the panel testing assembly 10 is fixedly connected to the testing platform 20 .

[0032] In some embodiments, in combination Figure 1 and Figure 2 As shown, the base 1 is L-shaped, including a first support plate 11 and a second support plate 12 connected to each other, the carrying module 2 is fixedly connected to the first support plate 11, and the conversion unit 24 is fixedly connected to the second support plate 12. The base 1 is arranged at the edge of the test platform 20, and the first support plate 11 and the second support plate 12 are respectively connected to two adjacent surfaces of the test platform 20. Figure 2 As shown, in the embodiment of the present invention, the first support plate 11 of the base 1 is connected to the upper surface of the test platform 20 , and the second support plate 12 of the base 1 is connected to the side surface of the test platform 20 .

[0033] In some embodiments, the base 1 is detachably connected to the test platform 20. For example, the first support plate 11 and the second support plate 12 of the base 1 are respectively fixedly connected to the upper surface and the side surface of the test platform 20 by screws. Of course, those skilled in the art will know that any detachable connection method is within the scope of protection of the present invention.

[0034] It should be noted that the TOS test device of the embodiment of the present invention also includes a probe (PROBE), which is used to electrically connect to the touch electrodes (driving electrodes Tx and / or sensing electrodes Rx) of the single display panel to be tested so as to perform a connection test. After the single display panel to be tested is adsorbed and fixed on the first surface 21 of the carrier module 2, the connection between the probe and the touch electrodes of the single display panel to be tested is adjusted to ensure that each probe can be electrically connected to the corresponding touch electrode. After adjusting the position of the probe, the short circuit / short circuit condition of the single display panel can be tested.

[0035] The TOS test device of the embodiment of the present invention can perform short circuit / open circuit tests on a single display panel, which can effectively reduce the debugging time of the TOS test device and the matching degree with the EAC test, ensure the consistency of TOS test and EAC test data, and improve product yield.

[0036] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A panel test assembly, characterized in that: It comprises a base and a carrying module, wherein the carrying module is fixedly connected to the base, and is used to carry and fix a single display panel to be tested, clean and dry or protect the single display panel, and switch between a cleaning and protection mode and an adsorption mode; The first surface of the carrying module includes a carrying area, and the size and area of ​​the carrying area match the size and area of ​​the single display panel to be tested; A plurality of through pores are provided in the bearing area of ​​the first surface. In the cleaning and protection mode, the bearing module uses the pores to spray compressed dry air to clean, dry or protect the single display panel.

2. The panel test assembly according to claim 1, characterized in that: In the adsorption mode, the supporting module uses compressed dry air and the air holes to vacuum adsorb the supported and fixed single display panel.

3. The panel test assembly according to claim 2, characterized in that: The carrier module includes a cavity and a conversion unit, wherein the conversion unit is fixedly connected to the base, and one end of the conversion unit is connected to the cavity through a first pipe, and the other end of the conversion unit is connected to an air source for providing compressed dry air through a second pipe, and the conversion unit is used to form a vacuum in the cavity using the compressed dry air, or to transport the compressed dry air to the cavity.

4. The panel test assembly according to claim 3, characterized in that: The carrier module further includes a regulating unit, which is disposed on the second pipeline and is used to regulate the gas supply volume of the second pipeline in the cleaning protection mode, or to regulate the gas pressure in the second pipeline in the adsorption mode.

5. The panel test assembly according to claim 1, wherein: The base is made of wear-resistant plastic.

6. The panel test assembly according to any one of claims 1 to 5, characterized in that: The bearing area is rectangular, the length of the rectangle is 15-20 cm, and the width of the rectangle is 22-30 cm.

7. A TOS testing device, characterized in that: Comprising a panel testing assembly as described in any one of claims 1-6.

8. The TOS testing device according to claim 7, characterized in that: It also includes a test platform, and the base is fixedly connected to the test platform.

9. The TOS testing device according to claim 8, characterized in that: The panel test assembly is a panel test assembly as claimed in any one of claims 3 to 6; The base is L-shaped, and includes a first support plate and a second support plate connected to each other, the bearing module is fixedly connected to the first support plate, and the conversion unit is fixedly connected to the second support plate; The base is arranged at the edge of the test platform, and the first support plate and the second support plate are respectively connected to two adjacent surfaces of the test platform.

10. The TOS testing device according to claim 8 or 9, characterized in that: The base is detachably connected to the test platform.

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