Integrated fixture for appearance detection and electric detection of display panel

Abstract

The utility model provides an appearance detection and electric detection integrated clamp for a display panel. The appearance detection and electric detection integrated clamp comprises a clamp base, a backlight module and an electric detection module, the clamp base comprises a groove; the backlight module comprises a backlight source and a backlight switch, and the backlight source is electrically connected with the backlight switch; the electric measurement module comprises an electric measurement probe and a switch pressing part; the switch pressing part is arranged right above the backlight switch, and when the electrical testing module is pressed down to enable the electrical testing probe to be in contact with a golden finger of an FPC part in the display panel to be tested, the switch pressing part presses down the backlight switch so as to lighten the backlight source. After the display panel to be detected is put in, the backlight source is turned on, whether the display panel has a semi-through hole or not is detected to judge whether the display panel has defects or not and detect the appearance of the function key, and electric detection of the display panel to be detected can be realized at the same time, so that the eyes of QC personnel can be protected, energy conservation and environmental protection are facilitated, and the display panel to be detected is more attractive. The production cost of secondary inspection is also saved; and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of test fixtures, in particular to an integrated fixture for appearance detection and electrical testing of a display panel. Background Art

[0002] At present, in the production process of display screens, a luminous background is needed to effectively check whether there are semi-transparent holes in order to check whether the display panel has defects. The conventional operation is to light up a backlight for QC personnel to check, which will cause the backlight to be on all the time, which will burden the eyes of QC personnel. At the same time, the backlight is not conducive to energy saving and environmental protection. In addition, after the appearance inspection, the functional electrical test fixture must be used to further test whether the display panel sample functions are up to standard. This requires the use of two fixtures and a secondary inspection, which not only increases production costs, but also has low production efficiency. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes an automatic identification electric measuring fixture.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The embodiment of the utility model provides an integrated fixture for appearance inspection and electrical testing of a display panel, comprising: a fixture base, a backlight module and an electrical testing module;

[0006] The fixture base includes a groove;

[0007] The backlight module comprises a backlight source and a backlight switch, and the backlight source and the backlight switch are electrically connected;

[0008] The electrical measurement module includes an electrical measurement probe and a switch pressing portion;

[0009] The switch pressing portion is arranged just above the backlight switch. When the electrical testing module is pressed down so that the electrical testing probe contacts the gold finger of the FPC part of the display panel to be tested, the switch pressing portion presses the backlight switch to light up the backlight source.

[0010] As a preferred embodiment of the present utility model, the groove includes a product limiting groove and a hand buckle groove, and the hand buckle groove is arranged on the periphery of the product limiting groove.

[0011] As a preferred embodiment of the utility model, the product limiting groove includes a panel area and an FPC area;

[0012] The panel area is used to place the panel portion of the display panel to be tested;

[0013] The FPC area is used to place the FPC portion of the display panel to be tested.

[0014] As a preferred implementation manner of the present utility model, the electrical measurement module is arranged directly above the FPC area.

[0015] As a preferred implementation of the present utility model, the probe units of the electrical testing probe correspond one-to-one to the gold fingers of the FPC part.

[0016] As a preferred implementation manner of the present utility model, the backlight source is arranged in the groove to light up the display panel to be tested.

[0017] As a preferred implementation mode of the present invention, the backlight source is embedded in the fixture base.

[0018] As a preferred implementation of the present invention, the backlight source is an LED light strip.

[0019] As a preferred implementation of the utility model, the electrical measuring probe is externally connected to an electrical measuring device.

[0020] As a preferred implementation manner of the present invention, the depth of the groove is consistent with the thickness of the display panel to be tested.

[0021] Compared with the prior art, the advantages and positive effects of the utility model are:

[0022] In the utility model, through the above arrangement, when the electrical test module is pressed down so that the electrical test probe contacts the gold finger of the FPC part of the display panel to be tested, the switch pressing part will press the backlight switch to light up the backlight source. This allows the QC personnel to light up the backlight source only after the display panel to be tested is placed, and to check whether there are semi-transparent holes on the display panel to determine whether there are defects and to detect the appearance of the function keys. At the same time, the electrical test of the display panel to be tested (i.e., to detect whether the screen lines are normal) can be realized, which can protect the eyes of the QC personnel, help save energy and protect the environment, and also save the production cost of secondary inspection and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of an integrated fixture for appearance inspection and electrical testing of a display panel provided by the utility model;

[0024] Figure 2 A structural schematic diagram of an electric measurement module provided by the utility model;

[0025] Figure 3 A schematic diagram of the structure of an integrated fixture for appearance inspection and electrical testing of a display panel provided by the utility model;

[0026] Figure 4 A schematic diagram of the structure of a display panel to be tested provided by the utility model;

[0027] Figure 5 The utility model provides a side view of an integrated fixture for appearance inspection and electrical testing of a display panel. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0030] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] See also Figure 1-2 , the embodiment of the utility model provides an integrated fixture for appearance inspection and electrical testing of a display panel, comprising: a fixture base 100, a backlight module 200 and an electrical testing module 300;

[0033] The fixture base 100 includes a groove 110;

[0034] The backlight module 200 includes a backlight source 210 and a backlight switch 220, and the backlight source 210 and the backlight switch 220 are electrically connected;

[0035] The electric test module 300 includes an electric test probe 310 and a switch pressing portion 320;

[0036] The switch pressing portion 320 is disposed directly above the backlight switch 220 . When the electrical testing module is pressed down so that the electrical testing probe 310 contacts the gold finger of the FPC part of the display panel to be tested, the switch pressing portion 320 presses the backlight switch 220 to light up the backlight source 210 .

[0037] In the utility model, through the above arrangement, when the electrical test module is pressed down so that the electrical test probe contacts the gold finger of the FPC part of the display panel to be tested, the switch pressing part will press the backlight switch to light up the backlight source. This allows the QC personnel to light up the backlight source only after the display panel to be tested is placed, and to check whether there are semi-transparent holes on the display panel to determine whether there are defects and to detect the appearance of the function keys. At the same time, the electrical test of the display panel to be tested (i.e., to detect whether the screen lines are normal) can be realized, which can protect the eyes of the QC personnel, help save energy and protect the environment, and also save the production cost of secondary inspection and improve production efficiency.

[0038] As a preferred embodiment of the present invention, please refer to Figure 1 and Figure 3 The groove 110 includes a product limiting groove 111 and a hand-gripping groove 112 , and the hand-gripping groove 112 is arranged on the periphery of the product limiting groove 111 .

[0039] In an embodiment of the utility model, the shape of the product limit groove is set based on the shape of the display panel to be tested, which will realize the precise alignment of the display panel and avoid the displacement of the display panel during detection to the greatest extent, thereby improving the detection efficiency; in addition, the embodiment of the utility model has no specific restriction on the number of the hand-holding grooves, which can be one or more, and the setting of the hand-holding grooves facilitates the picking up of the display panel to be tested.

[0040] As a preferred embodiment of the present invention, please refer to Figure 3 , the product limiting groove 111 includes a panel area 113 and an FPC area 114;

[0041] The panel area 113 is used to place the panel portion of the display panel to be tested;

[0042] The FPC area 114 is used to place the FPC portion of the display panel to be tested.

[0043] Among them, reference Figure 4The display panel 400 to be tested includes: a panel portion 410 and an FPC portion 420. The backlight switch is arranged near the FPC area 114, so that the volume of the electrical test module can be minimized.

[0044] Since the display panel to be tested is usually an integrated product with structures such as FPC installed, the product limit groove includes a panel area and an FPC area to cooperate with it. During testing, the panel area is used to place the panel part of the display panel to be tested, and the FPC area is used to place the FPC part of the display panel to be tested, thereby further improving the precise alignment effect of the display panel to be tested, and avoiding the displacement of the display panel during testing to the greatest extent, thereby improving the testing efficiency.

[0045] As a preferred embodiment of the present invention, the electrical measurement module 300 is disposed directly above the FPC area 114 , so that the electrical measurement module 300 can contact the FPC portion 420 .

[0046] As a preferred embodiment of the present invention, the probe unit 311 of the electrical testing probe 310 corresponds one-to-one with the gold finger 421 of the FPC part 420, so as to realize electrical testing of the display panel.

[0047] As a preferred embodiment of the utility model, the backlight source is arranged in the groove to light up the display panel to be tested, so that it is possible to check whether the display panel has defects such as semi-transparent holes by transmitting light.

[0048] The backlight source may be preferably arranged below the silk-screened function keys in the display panel to be tested, so as to detect whether the silk-screening of the function keys is good.

[0049] As a preferred embodiment of the present invention, please refer to Figure 5 , the backlight source 210 is embedded in the fixture base 100. The above arrangement ensures the flatness of the bottom of the groove, so that the display panel to be tested can be placed in a better manner, which is convenient for testing the display panel to be tested.

[0050] As a preferred implementation of the present invention, the backlight source is an LED light strip.

[0051] As a preferred embodiment of the utility model, the electric test probe is externally connected to an electric test device. In the embodiment of the utility model, when the display panel to be tested is placed in the fixture, the electric test module 300 can be manually pressed down so that the electric test probe 310 contacts the gold finger 421. The electric test device has built-in test software. After contacting the gold finger, the test software will sense it and can automatically start the electric test function for electric test, or manually start the electric test function for electric test, so as to test whether each bridge point of the display panel to be tested is normal, such as whether the screen line is sensitive, whether there is a disconnection, etc.; at the same time, the backlight switch is pressed by the downward probe, and the backlight is lit.

[0052] As a preferred embodiment of the present invention, the depth of the groove 110 is consistent with the thickness of the display panel 400 to be tested. The above configuration ensures the precise alignment of the display panel, avoids the displacement of the display panel during testing, and improves the testing efficiency.

[0053] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An integrated fixture for appearance inspection and electrical testing of a display panel, characterized in that: include: Fixture base, backlight module and electrical measurement module; The fixture base includes a groove; The backlight module comprises a backlight source and a backlight switch, and the backlight source and the backlight switch are electrically connected; The electrical measurement module includes an electrical measurement probe and a switch pressing portion; The switch pressing portion is arranged just above the backlight switch. When the electrical testing module is pressed down so that the electrical testing probe contacts the gold finger of the FPC part of the display panel to be tested, the switch pressing portion presses the backlight switch to light up the backlight source.

2. The integrated fixture for appearance inspection and electrical testing of a display panel according to claim 1, characterized in that: The groove includes a product limiting groove and a hand-gripping groove, and the hand-gripping groove is arranged on the periphery of the product limiting groove.

3. The integrated fixture for appearance inspection and electrical testing of a display panel according to claim 2, characterized in that: The product limiting groove includes a panel area and an FPC area; The panel area is used to place the panel portion of the display panel to be tested; The FPC area is used to place the FPC portion of the display panel to be tested.

4. The integrated fixture for appearance inspection and electrical testing of a display panel according to claim 3, characterized in that: The electrical measurement module is arranged directly above the FPC area.

5. The integrated fixture for appearance inspection and electrical testing of a display panel according to claim 3, characterized in that: The probe units of the electrical test probe correspond one to one with the gold fingers of the FPC part.

6. The integrated fixture for appearance inspection and electrical testing of a display panel according to claim 1, characterized in that: The backlight source is arranged in the groove and is used to light up the display panel to be tested.

7. The integrated fixture for appearance inspection and electrical testing of a display panel according to claim 6, characterized in that: The backlight source is embedded in the fixture base.

8. The integrated fixture for appearance inspection and electrical testing of a display panel according to claim 6, characterized in that: The backlight source is an LED light strip.

9. The integrated fixture for appearance inspection and electrical testing of a display panel according to claim 1, characterized in that: The electrical measuring probe is externally connected to an electrical measuring device.

10. The integrated fixture for appearance inspection and electrical testing of a display panel according to claim 1, characterized in that: The depth of the groove is consistent with the thickness of the display panel to be tested.

Images