Defect detection clamp for display panel

Abstract

The utility model provides a defective detection clamp for a display panel. The defective detection clamp comprises a clamp base, a backlight module and a sensing device, the clamp base comprises a groove; the backlight module and the sensing device are arranged below the groove; and the backlight module is electrically connected with the sensing device. By arranging the sensing device and the backlight module on the clamp base, when a product is put into the groove, the sensor device detects that the product is put into the groove, so that the backlight module is lightened, and a QC (Quality Control) person judges whether a defect exists or not by checking whether a semi-through hole exists in a display panel or not, so that the eyes of the QC person can be well protected, and energy conservation and environmental protection are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of test fixtures, in particular to a defective detection fixture for a display panel. Background Art

[0002] At present, in the production process of display screens, the process in the production process is very long and requires transportation through many conveyors. During transportation, it is very easy to cause scratches due to dragging of the product, resulting in defective areas on the display panel, which often present a semi-transparent state. Without backlight added to the back of the display panel, this appearance defect is very difficult to detect. The conventional operation is to light a backlight at the QC position for QC personnel to check whether there are semi-transparent holes on the display panel to determine whether there are defects. However, keeping the backlight on all the time will burden the eyes of QC personnel, and at the same time, keeping the backlight on all the time is not conducive to energy conservation and environmental protection. Content of the Utility Model

[0003] The purpose of the utility model is to solve the defects existing in the prior art, and a kind of electric measurement fixture with automatic recognition is proposed.

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

[0005] The embodiment of the utility model provides a defective detection fixture for a display panel, including: a fixture base, a backlight module and a sensing device;

[0006] The fixture base includes a groove;

[0007] The backlight module and the sensing device are both arranged below the groove;

[0008] The backlight module is electrically connected to the sensing device.

[0009] As a preferred embodiment of the utility model, the groove includes a product limiting groove and a handle groove, and the handle groove is arranged on the periphery of the product limiting groove.

[0010] As a preferred embodiment of the utility model, the product limiting groove includes a panel area and an FPC area.

[0011] As a preferred embodiment of the utility model, it further includes a display panel to be tested, and the display panel to be tested includes a silk printing area. During detection, the display panel to be tested is arranged in the groove.

[0012] As a preferred embodiment of the utility model, the depth of the groove is consistent with the thickness of the display panel to be tested.

[0013] As a preferred embodiment of the present utility model, the sensing device is a touch switch, and when the display panel to be tested is placed in the groove, the touch switch causes the backlight module to emit light.

[0014] As a preferred embodiment of the present utility model, the sensing device is disposed below the silk printing area.

[0015] As a preferred embodiment of the present utility model, the sensing device is an infrared sensor, and when the display panel to be tested is placed in the groove, the infrared sensor causes the backlight module to emit light.

[0016] As a preferred embodiment of the present utility model, the backlight module is an LED light strip.

[0017] As a preferred embodiment of the present utility model, the backlight module is embedded in the fixture base.

[0018] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0019] In the present utility model, by providing a sensing device and a backlight module on the fixture base, when the product is placed in the groove, the sensor device will detect the placement of the product, and then the backlight module is lit, enabling QC personnel to check whether there are semi-transparent holes on the display panel to determine whether there are defects. This can not only protect the eyes of QC personnel but also contribute to energy conservation and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of a defective detection fixture for a display panel provided by the present utility model;

[0021] Figure 2 It is a schematic structural diagram of a defective detection fixture for a display panel provided by the present utility model;

[0022] Figure 3 It is a schematic structural diagram of the display panel to be tested provided by the present utility model;

[0023] Figure 4 It is a side view of a defective detection fixture for a display panel provided by the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to more clearly understand the above objects, features, and advantages of the present utility model, the present utility model will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0025] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may be practiced in other ways than those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0027] In the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", "setting", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and may also be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Please refer to Figure 1 , an embodiment of the present utility model provides a defective detection fixture for a display panel, including: a fixture base 100, a backlight module 200, and a sensing device 300;

[0029] The fixture base 100 includes a groove 110;

[0030] Both the backlight module 200 and the sensing device 300 are disposed below the groove 110;

[0031] The backlight module 200 is electrically connected to the sensing device 300.

[0032] In the present utility model, by providing a sensing device and a backlight module on the fixture base, when a product is placed in the groove, the sensor device can detect the placement of the product, and then the backlight module is lit, enabling QC personnel to check whether there are semi-permeable holes on the display panel to determine whether there are defects. This can not only protect the eyes of QC personnel but also contribute to energy conservation and environmental protection.

[0033] As a preferred embodiment of the present utility model, please refer to Figure 2, the groove 110 includes a product limiting groove 111 and a handle groove 112, and the handle groove 112 is arranged on the periphery of the product limiting groove 111.

[0034] In the embodiment of the present invention, the shape of the product limiting groove is set based on the detected display panel, which realizes the accurate alignment of the display panel and maximally avoids the displacement of the display panel during detection, improving the detection efficiency. In addition, there is no specific limitation on the number of the handle grooves in the embodiment of the present invention, which can be one or more. The setting of the handle grooves facilitates the taking of the detected display panel.

[0035] As a preferred embodiment of the present invention, please refer to Figure 2 , the product limiting groove 111 includes a panel area 113 and an FPC area 114.

[0036] Since the detected display panel is usually an integrated product with structures such as an FPC installed, the product limiting groove includes a panel area and an FPC area to cooperate with it. During detection, the cover plate part of the display panel will be arranged in the panel area, and the FPC part will be arranged in the FPC area, further improving the accurate alignment effect of the display panel and maximally avoiding the displacement of the display panel during detection, improving the detection efficiency.

[0037] As a preferred embodiment of the present invention, please refer to Figure 3 , further including a display panel 400 to be detected, the display panel 400 to be detected includes a silk printing area 410, and during detection, the display panel 400 to be detected is arranged in the groove 110. Preferably, the display panel 400 to be detected further includes an FPC 420.

[0038] Among them, when the groove 110 includes a product limiting groove 111 and a handle groove 112, the display panel 400 to be detected is arranged in the product limiting groove 111.

[0039] 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 detected. The above setting ensures the accurate alignment effect of the display panel and avoids the displacement of the display panel during detection, improving the detection efficiency.

[0040] As a preferred embodiment of the present invention, the sensing device 300 is a touch-type switch, and the touch-type switch makes the backlight module 200 emit light when the display panel 400 to be detected is placed in the groove 110.

[0041] As a preferred embodiment of the present invention, the position of the sensing device 300 is arranged below the silk printing area 410.

[0042] As a preferred embodiment of the present utility model, the sensing device 300 is an infrared sensor, and when the display panel 400 to be tested is placed into the groove 110, the infrared sensor causes the backlight module 200 to emit light. In the embodiment of the present utility model, a layer of opaque ink is screen-printed on the screen-printing area. Therefore, when the display panel 400 to be tested is placed into the groove 110, the occlusion of the screen-printing area will trigger the infrared sensor to send a control signal to the backlight device, causing the backlight device to emit light.

[0043] As a preferred embodiment of the present utility model, the backlight module 200 is an LED light strip.

[0044] As a preferred embodiment of the present utility model, please refer to Figure 4 , the backlight module 200 is embedded in the fixture base 100. The above setting ensures the flatness of the bottom of the groove, making the placement effect of the display panel to be tested better and facilitating the detection of the display panel to be tested.

[0045] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as the technical solution content of the present utility model is not departed from, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A defective detection fixture for a display panel, characterized in that, Comprising: A fixture base, a backlight module, and a sensing device; The fixture base includes a groove; Both the backlight module and the sensing device are disposed below the groove; The backlight module is electrically connected to the sensing device.

2. The defective detection fixture for the display panel according to claim 1, wherein The groove includes a product limiting groove and a handle groove, and the handle groove is disposed on the periphery of the product limiting groove.

3. The defective detection fixture for the display panel according to claim 2, wherein, The product limiting groove includes a panel area and an FPC area.

4. The defective detection fixture for a display panel according to claim 1, characterized in that It further includes a display panel to be tested, and the display panel to be tested includes a silk-screening area. During testing, the display panel to be tested is disposed in the groove.

5. The defective detection fixture for a display panel according to claim 4, wherein The depth of the groove is consistent with the thickness of the display panel to be tested.

6. The defective detection fixture for a display panel according to claim 4, wherein The sensing device is a touch-type switch, and the touch-type switch causes the backlight module to emit light when the display panel to be tested is placed in the groove.

7. The defective detection fixture for a display panel according to claim 4, characterized in that, The position of the sensing device is disposed below the silk-screening area.

8. The defective detection fixture for the display panel according to claim 7, wherein, The sensing device is an infrared sensor, and the infrared sensor causes the backlight module to emit light when the display panel to be tested is placed in the groove.

9. The defective detection fixture for the display panel according to claim 1, characterized in that, The backlight module is an LED light strip.

10. The defective detection fixture for the display panel according to claim 1, wherein, The backlight module is embedded in the fixture base.

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