An end light leakage detection device of a display module

Abstract

The utility model belongs to liquid crystal display module detection technical field, concretely relates to a kind of end light leakage detection device of display module, including fixture and light reflection guide component;The upper surface of fixture is equipped with placing recess, and placing recess is used to install and place measured module;The upper surface of fixture is also equipped with detection recess, and detection recess is communicated with the setting of placing recess;The mounting end of light reflection guide component is movably connected in the inside of detection recess;And the guide end of light reflection guide component is used to be set towards the side end of measured module.The utility model can realize quick judgment whether light leakage condition appears;Further improve the convenience and efficiency of detection operation.

Description

Technical Field

[0001] This utility model belongs to the field of liquid crystal display module technology, and in particular relates to an end light leakage detection device for display modules. Background Technology

[0002] An LCD module mainly consists of an LCD screen and a backlight assembly. These two parts are assembled together, but their circuitry is independent and separate during operation. The principle of LCD display is that the backlight assembly emits uniform surface light, which is transmitted to our eyes through the LCD screen. The LCD screen's function is to process this light at the pixel level to display an image. After the LCD module is assembled, a light leakage test is required.

[0003] However, most existing light leakage detection devices only detect light leakage in the direction directly in front. When adjusting the machine, the film is applied too low, and due to static electricity during production, some light-enhancing elements are blocked in the front. Therefore, lateral light leakage between the iron frame and the black and white adhesive at the bottom cannot be detected, thus reducing detection efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide an end light leakage detection device for display modules, which addresses the shortcomings of existing technologies and solves the technical problem that existing technologies cannot detect lateral light leakage between the iron frame and the black and white adhesive at the bottom end.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An end light leakage detection device for a display module includes a fixture and a reflective guide component; the upper surface of the fixture is provided with a placement groove for placing the module under test; the upper surface of the fixture is also provided with a detection groove, which is connected to the placement groove; the mounting end of the reflective guide component is movably connected to the interior of the detection groove; and the guiding end of the reflective guide component is positioned towards the side end of the module under test.

[0007] Preferably, the relationship between the depth H of the placement groove and the depth h of the detection groove satisfies: H > h.

[0008] Preferably, the reflective guiding component includes a reflector; the reflector is inclinedly disposed inside the detection groove; and the reflective surface of the reflector is disposed facing the module under test.

[0009] Preferably, the angle between the reflector and the horizontal plane it is located is α, and α satisfies: 60°≤α≤80°.

[0010] Preferably, the bottom of the detection groove is provided with an adjustment contact portion; the bottom of the reflector is provided with a bottom abutment surface; the bottom abutment surface slides against the adjustment contact portion.

[0011] Preferably, the inner wall of the detection groove is further provided with a support contact portion; the top of the reflector slides against the inner wall of the support contact portion facing the placement groove.

[0012] Preferably, the adjusting contact portion includes a first contact surface and at least one second contact surface arranged sequentially along the depth direction; the bottom abutment surface slides against the first contact surface and the second contact surface.

[0013] Preferably, the first contact surface and the second contact surface form a decreasing stepped structure.

[0014] Preferably, the fixture has a movable channel on its side; the movable channel is connected to the detection groove; a pushing member is provided on the side surface of the reflector away from the placement groove; the pushing member passes through the movable channel.

[0015] Preferably, the pushing member includes a fixed rod and at least one transverse pushing rod; the fixed rod is connected to the side surface of the reflector away from the placement groove; one end of the transverse pushing rod is connected to the fixed rod; the other end of the transverse pushing rod passes through the movable channel.

[0016] The beneficial effect of this utility model is that, by adding a detection groove that communicates with the placement groove, the light leaking from the side end can be orderly transmitted into the detection groove. Then, combined with the movable assembly of the reflective guide component into the placement groove, the leaked light can be reflected into the light collector from multiple directions and angles, so as to quickly determine whether light leakage has occurred, thereby improving the convenience and efficiency of the detection operation. Attached Figure Description

[0017] The following will refer to the appendix. Figures 1-3 This section describes the features, advantages, and technical effects of exemplary embodiments of the present invention.

[0018] Figure 1 This is a schematic diagram of the end light leakage detection device of a display module according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the end light leakage detection device of a display module according to an embodiment of the present invention;

[0020] Figure 3 This is a partial cross-sectional view of the end light leakage detection device of the display module according to an embodiment of the present invention.

[0021] In the figure: 1- Fixture; 11-Placement groove; 12-Detection groove; 13-Adjustment contact part; 131-First contact surface; 132-Second contact surface; 133-Movement channel; 14-Support contact part; 2-Module to be tested; 3-Reflective guide component; 31-Reflector; 311-Bottom abutment surface; 32-Fixing rod; 33-Horizontal push rod. Detailed Implementation

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is intended to particularly describe embodiments and not to limit the scope of this application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0023] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the embodiment description, "multiple" refers to two or more, unless otherwise specifically defined.

[0024] The term 'embodiment' means that a particular feature, structure, or characteristic described exists in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0025] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or multiple situations existing alone. In addition, the character " / " in this document generally indicates that the related objects before and after are in an "or" relationship.

[0026] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can also refer to a mechanical connection or an electrical connection. They can be directly connected or indirectly connected through an intermediate medium, manifesting as internal communication between two components or an interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0027] The following is in conjunction with the appendix Figures 1-3 The present invention will be described in further detail, but this is not intended to limit the scope of the present invention.

[0028] like Figure 1 and 2 As shown, in one embodiment of this utility model, the end light leakage detection device for the display module includes a fixture 1 and a reflective guide component 3. The upper surface of the fixture 1 is provided with a placement groove 11, which is used to place the module under test 2. The upper surface of the fixture 1 is also provided with a detection groove 12, which is connected to the placement groove 11. The mounting end of the reflective guide component 3 is movably connected to the inside of the detection groove 12. The guiding end of the reflective guide component 3 is set towards the side end of the module under test 2. The structure of the module under test 2 is TFT (liquid crystal display) + IC (integrated circuit) + FPC (flexible printed circuit board) + BL (backlight) + CTP (capacitive touch screen). The light leakage position of this structure is on the back. On conventional test fixtures, the front is always detected. However, the LENS (lens, lens, crystal, etc.) covers the backlight, making it impossible to detect the light leakage phenomenon at the end of the back.

[0029] The technical solution of this utility model adds a detection groove that communicates with the placement groove to promote the orderly conduction of light leaking from the side into the detection groove. Then, combined with the movable assembly of the reflective guide component into the placement groove, the leaked light is reflected into the light collector from multiple directions and angles, so as to quickly determine whether light leakage has occurred, thereby improving the convenience and efficiency of the detection operation.

[0030] Specifically, in some implementations, such as Figure 2 and 3 As shown, the relationship between the depth H of the placement groove 11 and the depth h of the detection groove 12 satisfies: H > h. This structure, by assembling the reflective guide component 3 into the deeper detection groove 12, facilitates the reflection and guidance of light leaking from different height positions within the placement groove 11, thereby improving detection accuracy.

[0031] Specifically, in some implementations, such as Figure 3 As shown, the reflective guiding component 3 includes a reflector 31; the reflector 31 is inclinedly disposed inside the detection groove 12; and the reflective surface of the reflector 31 faces the module 3 under test. This structure, through the inclined reflector 31, guides the reflection of light leaking from different height positions within the placement groove 11 within the deeper detection groove 12, thereby improving detection accuracy. In some embodiments, such as... Figure 3As shown, the angle between the reflector 31 and the horizontal plane it lies on is α, where α satisfies: 60°≤α≤80°. This structure, through a suitable reflective tilt angle, effectively controls the length of the reflected light refraction path, thereby facilitating the guidance of leaked light reflection and improving detection accuracy. When the angle is too small, the reflected light refraction path becomes too long, easily weakening the light intensity; when the angle is too large, the reflected light refraction path cannot be directed towards the light collector.

[0032] Specifically, in some implementations, such as Figure 2 and 3 As shown, the bottom of the detection groove 12 is provided with an adjustment contact part 13; the bottom of the reflector 31 is provided with a bottom abutment surface 311; the bottom abutment surface 311 slides against the adjustment contact part 13; the inner sidewall of the detection groove 12 is also provided with a support contact part 14; the top of the reflector 31 slides against the inner sidewall of the support contact part 14 facing the placement groove 11. This structure, through the simultaneous sliding action of the bottom and top of the reflector 31 along the bottom abutment surface 311 and the support contact part 14 respectively, enables rapid adjustment within the tilt angle range of 60° to 80°, thereby facilitating the reflection and guidance of light leaking from different height positions within the placement groove 11, and thus improving detection accuracy.

[0033] Specifically, in some implementations, such as Figure 3 As shown, the adjusting contact portion 13 includes a first contact surface 131 and at least one second contact surface 132 arranged sequentially along the depth direction; the bottom abutment surface 311 slidably abuts against the first contact surface 131 and the second contact surface 132. In some embodiments, such as... Figure 3 As shown, the first contact surface 131 and the second contact surface 132 form a decreasing stepped structure to enable rapid adjustment within the tilt angle range of 60° to 80°, thereby facilitating the reflection and guidance of light leaking from different height positions within the placement groove 11, and thus improving detection accuracy.

[0034] Specifically, in some implementations, such as Figure 3 As shown, the fixture 1 has a movable channel 133 on its side; the movable channel 133 is connected to the detection groove 12; a pusher is provided on the surface of the reflector 31 away from the placement groove 11; the pusher passes through the movable channel 133 to quickly adjust the reflective orientation angle of the reflector 31. Wherein, as... Figure 3 As shown, the pusher includes a fixed rod 32 and at least one transverse push rod 33; the fixed rod 32 (bonded) is connected to the side surface of the reflector 31 away from the placement groove 11; one end of the transverse push rod 33 is connected to the fixed rod 32; the other end of the transverse push rod 33 is disposed through the movable channel 133.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0036] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on this utility model are within the protection scope of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A device for detecting light leakage at the end of a display module, characterized in that: The device includes a fixture and a reflective guide component; the upper surface of the fixture is provided with a placement groove for placing the module under test; the upper surface of the fixture is also provided with a detection groove, which is connected to the placement groove; the mounting end of the reflective guide component is movably connected to the interior of the detection groove; and the guiding end of the reflective guide component is positioned towards the side end of the module under test.

2. The end light leakage detection device for the display module according to claim 1, characterized in that: The relationship between the depth H of the placement groove and the depth h of the detection groove satisfies: H > h.

3. The end light leakage detection device for the display module according to claim 1, characterized in that: The reflective guiding component includes a reflector; the reflector is inclinedly disposed inside the detection groove; and the reflective surface of the reflector is disposed facing the module under test.

4. The end light leakage detection device for the display module according to claim 3, characterized in that: The angle between the reflector and the horizontal plane it is located is α, and α satisfies: 60°≤α≤80°.

5. The end light leakage detection device for the display module according to claim 3, characterized in that: The bottom of the detection groove is provided with an adjustment contact part; the bottom of the reflector is provided with a bottom abutment surface; the bottom abutment surface slides against the adjustment contact part.

6. The end light leakage detection device for the display module according to claim 5, characterized in that: The inner wall of the detection groove is also provided with a support contact part; the top of the reflector slides against the inner wall of the support contact part facing the placement groove.

7. The end light leakage detection device for the display module according to claim 5 or 6, characterized in that: The adjusting contact portion includes a first contact surface and at least one second contact surface arranged sequentially along the depth direction; the bottom abutment surface slides against the first contact surface and the second contact surface.

8. The end light leakage detection device for the display module according to claim 7, characterized in that: The first contact surface and the second contact surface form a decreasing stepped structure.

9. The end light leakage detection device for the display module according to claim 8, characterized in that: The fixture has a movable channel on its side; the movable channel is connected to the detection groove; the reflector has a pusher on its side surface away from the placement groove; the pusher passes through the movable channel.

10. The end light leakage detection device for the display module according to claim 9, characterized in that: The pushing component includes a fixed rod and at least one transverse pushing rod; the fixed rod is connected to the side surface of the reflector away from the placement groove; one end of the transverse pushing rod is connected to the fixed rod; the other end of the transverse pushing rod passes through the movable channel.

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