CN220040910U - Liquid crystal module light leakage detection device - Google Patents

Abstract

A light leakage detection device of a liquid crystal module comprises a detection jig and a reflector; the detection jig is used for detecting the liquid crystal module, and shading glue is stuck on the areas where the photosensitive holes and the infrared holes of the liquid crystal module are located; the liquid crystal module is arranged on the detection jig during detection, a reflector is arranged at the position, opposite to the shading glue, on the detection jig, and reflects light leaked by the shading glue into human eyes; the back of the reflector is provided with a rotating shaft which is rotatably arranged on two mounting seats fixedly arranged on the detection jig; one end of the rotating shaft is fixedly provided with an adjusting rod; according to the utility model, the problem that the detection efficiency and accuracy are low because the liquid crystal module needs to be taken up for light leakage detection is solved by installing the reflector, and the liquid crystal module can be directly placed on the detection jig for light leakage detection, so that the detection efficiency and accuracy are improved; meanwhile, through the matching design of the rotating shaft and the adjusting rod, the pitching angle of the reflector can be adjusted more conveniently and accurately, and the working efficiency is improved.

Description

Liquid crystal module light leakage detection device

Technical Field

The utility model relates to the technical field of liquid crystal module detection, in particular to a liquid crystal module light leakage detection device.

Background

The liquid crystal module mainly comprises a liquid crystal screen and a backlight assembly, and the liquid crystal screen and the backlight assembly are assembled together, but the liquid crystal module is irrelevant to a circuit and independent from each other in operation. The principle of liquid crystal display is that a backlight assembly emits uniform surface light, which is transmitted into our eyes through a liquid crystal panel, which processes the light by pixels to display an image. After the liquid crystal module is assembled, in order to prevent the light leakage of the backlight assembly from affecting the induction of the infrared hole and the photosensitive hole, shading glue needs to be attached to the area where the infrared hole and the photosensitive hole are located, so that a gap between the glass and the backlight assembly is sealed, and the light leakage is prevented. After the attachment of the shading adhesive is completed, the product needs to be lightened for checking to confirm that the shading adhesive is effective. In the present inspection apparatus, the liquid crystal module needs to be taken up for visual inspection at multiple angles when inspecting the light leakage phenomenon. This inspection method has two drawbacks: firstly, the liquid crystal module is lifted up to increase the detection time; and secondly, the light after the liquid crystal module is taken up is brighter than the light when the product is placed in the detection jig, so that the judgment of naked eyes on light leakage or not is affected.

Therefore, the utility model provides a light leakage detection device which does not need to pick up a liquid crystal module when light leakage detection is carried out, so that the light leakage detection accuracy and detection efficiency are improved.

Disclosure of Invention

In view of the above problems, the present utility model provides a light leakage detection device for a liquid crystal module, which adopts the following technical scheme:

a light leakage detection device of a liquid crystal module comprises a detection jig and a reflector; the detection jig is used for detecting the liquid crystal module, and shading glue is stuck to the areas where the photosensitive holes and the infrared holes of the liquid crystal module are located; the liquid crystal module is installed on the detection jig when detecting, the reflector is installed on the position, opposite to the shading glue, on the detection jig, and the reflector reflects light leaked by the shading glue into human eyes.

Further, the back of the reflector is coaxially and fixedly provided with a rotating shaft, the left end and the right end of the rotating shaft are respectively and rotatably arranged on two mounting seats, and the two mounting seats are fixedly arranged on the detection jig and used for adjusting the pitching angle of the reflector.

Further, one end of the rotating shaft is fixedly provided with an adjusting rod, and the adjusting rod is mutually perpendicular to the rotating shaft, so that the pitching angle of the reflector can be conveniently adjusted.

Further, the rotating shaft is a damping rotating shaft.

Due to the adoption of the technical scheme, the utility model has the following advantages:

according to the utility model, the problem that the detection efficiency and accuracy are low because the liquid crystal module needs to be taken up for light leakage detection is solved by installing the reflector, and the liquid crystal module can be directly placed on the detection jig for light leakage detection, so that the detection efficiency and accuracy are improved; meanwhile, through the matching design of the rotating shaft and the adjusting rod, the pitching angle of the reflector can be adjusted more conveniently and accurately, and the working efficiency is improved.

Drawings

Fig. 1 is a schematic diagram of a back structure of a liquid crystal module according to the present utility model.

Fig. 2 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.

Fig. 3 is a schematic overall structure of the present utility model.

Fig. 4 is a schematic top view of the present utility model.

Fig. 5-6 are schematic views of the assembly structure of the mirror of the present utility model.

Reference numerals:

1-a liquid crystal module;

101-a photosensitive hole; 102-an infrared aperture; 103-shading adhesive;

2-detecting a jig;

3-reflecting mirror;

4-rotating shaft;

5-mounting seats;

6-adjusting the rod.

Detailed Description

The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be embodied in many other forms than described herein, and persons skilled in the art will be able to make similar modifications without departing from the spirit of the utility model, so that the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "in", "out", "front", "rear", etc. are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience in describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model.

Examples:

as shown in fig. 3-4, a light leakage detection device for a liquid crystal module comprises a detection jig 2 and a reflector 3; the detection jig 2 is used for detecting the liquid crystal module 1; the reflector 3 is arranged at the position, opposite to the shading adhesive 103, on the detection jig 2;

as shown in fig. 5-6, the back of the reflector 3 is fixedly provided with a rotating shaft 4 in the same type, the left end and the right end of the rotating shaft 4 are respectively and rotatably arranged on two mounting seats 5, and the two mounting seats 5 are fixedly arranged on the detection jig 2; one end of the rotating shaft 4 is fixedly provided with an adjusting rod 6, and the adjusting rod 6 is mutually perpendicular to the rotating shaft 4;

as shown in fig. 1-2, a light shielding adhesive 103 is adhered to the area where the photosensitive hole 101 and the infrared hole 102 of the liquid crystal module 1 are located;

in this embodiment, in order to facilitate the mirror 3 to be at a rotation angle when the same batch of liquid crystal modules 1 leak light for detection, the rotation axis 4 is a damping rotation axis, and the mirror 3 can keep a certain angle unchanged by connecting with the two mounting seats 5; since the damping rotation shaft is already known in the prior art, such as a damping rotation shaft of a notebook computer, the damping rotation shaft will not be described herein.

When the liquid crystal module 1 is subjected to light leakage detection, the liquid crystal module 1 is arranged at a liquid crystal module placement position on the detection jig 2, and the liquid crystal module 1 is lightened; manually rotating the adjusting rod 6, and driving the rotating shaft 4 to rotate by the adjusting rod 6, so as to adjust the pitching angle of the reflector 3, and adjust the pitching angle of the reflector 3 to be suitable for the angle of the tester, thereby ensuring that the inspector can accurately judge whether light leaks or not;

if the light shielding glue 103 is invalid, the reflector 3 reflects the light leaked from the light shielding glue 103 into human eyes, so that a inspector can judge whether light is leaked.

Claims (4)

1. The light leakage detection device of the liquid crystal module is characterized by comprising a detection jig (2) and a reflector (3); the detection jig (2) is used for detecting the liquid crystal module (1), and shading adhesive (103) is stuck to the area where the photosensitive hole (101) and the infrared hole (102) of the liquid crystal module (1) are located; the liquid crystal module (1) is installed on the detection jig (2) when detecting, the reflector (3) is installed on the position, opposite to the shading glue (103), of the detection jig (2), and the reflector (3) reflects light leaking from the shading glue (103) into eyes.

2. The light leakage detection device for the liquid crystal module according to claim 1, wherein a rotating shaft (4) is coaxially and fixedly arranged on the back of the reflector (3), the left end and the right end of the rotating shaft (4) are respectively rotatably arranged on two mounting seats (5), and the two mounting seats (5) are fixedly arranged on a detection jig (2) and are used for adjusting the pitching angle of the reflector (3).

3. The light leakage detection device for the liquid crystal module according to claim 2, wherein an adjusting rod (6) is fixedly arranged at one end of the rotating shaft (4), and the adjusting rod (6) is mutually perpendicular to the rotating shaft (4), so that the pitching angle of the reflector (3) can be conveniently adjusted.

4. The liquid crystal module light leakage detection device according to claim 2, wherein the rotation shaft (4) is a damping rotation shaft.