Jig for inspecting display module

A jig for inspecting a display module, the display module including a display module body and a lug, the jig including a bottom plate and a cover plate, the cover plate operatively covering the bottom plate; the bottom plate being provided with a first flat portion and the cover plate being provided with a second flat portion, wherein the bottom plate is provided with a first concave portion surrounded by the first flat portion, and/or the cover plate provided with a second concave portion surrounded by the second flat portion, the first concave portion and/or the second concave portion form(s) a receiving area for the display module body, and the first flat portion and the second flat portion are configured to clamp the lug.

The application is a U.S. National Phase Entry of International Application No. PCT/CN2018/083029 filed on Apr. 13, 2018, designating the United States of America and claiming priority to Chinese Patent Application No. 201720467598.4 filed on Apr. 28, 2017. The present application claims priority to and the benefit of the above-identified applications and the above-identified applications are incorporated by reference herein in their entirety.

TECHNICAL FIELD

Embodiments of the present disclosure relates to a jig for inspecting a display module.

BACKGROUND

Technologies for electronic display are more and more mature, and display modules are widely used in laptops, cell phones, televisions, and the like.

In the related art, the display modules usually comprise a display panel and a backlight module. The backlight module further comprises lugs. The lugs are disposed on two opposite sides of the backlight module and extend outward, and are configured to fix the display module to an application device. At present, the deformation of the lugs is inspected by manual detection. However, there is no reference standard, and at the same time, each lug needs to be inspected, which leads to excessive inspection time and even leads to missed detection.

SUMMARY

At least one embodiment of the present disclosure provides a jig suitable for inspecting a display module, the display module comprising a display module body and a lug, the jig comprising a bottom plate and a cover plate, the cover plate operatively covering the bottom plate, the bottom plate being provided with a first flat portion and the cover plate being provided with a second flat portion, wherein the bottom plate is provided with a first concave portion surrounded by the first flat portion, and/or the cover plate is provided with a second concave portion surrounded by the second flat portion, the first concave portion and/or the second concave portion form(s) a receiving area for the display module body, and the first flat portion and the second flat portion are configured to clamp the lug.

DETAILED DESCRIPTION

In the description of the present disclosure, it is to be understood that the orientational or positional relationships indicated by the terms of “center”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside” and the like are based on the orientational or positional relationships shown in the drawings, and are merely used to facilitate the description of the present disclosure and simplify the description, rather than indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present disclosure.

Since the lugs03protrude to the outside of the liquid crystal display panel01, they are inclined to be deformed due to external forces during transportation or conveyance. At present, the deformation of the lugs is manually inspected by placing the liquid crystal module on an inspection table and directly observing whether the lugs are deformed. Since there is no reference standard, it is not conducive to observation and the inspection time is relatively long. And, each lug needs to be inspected separately, and inspection is likely to be missed when the number of the lugs is relatively large.

At least one embodiment of the present disclosure provides a jig for inspecting a display module. The display module comprises a display module body and lugs (the backlight module02(display module body) as shown inFIG. 1and the lugs03). As illustrated inFIG. 2, the jig comprises a bottom plate1and a cover plate2. The cover plate2operatively covers the bottom plate1. The bottom plate1has a first flat portion11and the cover plate2has a second flat portion21. The bottom plate1is provided with a first concave portion13surrounded by the first flat portion11, and/or the cover plate2is provided with a second concave portion23surrounded by the second flat portion21. The first concave portion13and/or the second concave portion form(s) a receiving area3for the display module body, and the first flat portion11and the second flat portion21are configured to clamp the lugs03.

When the jig for inspecting the display module according to the embodiment of the present disclosure is in use, the jig is placed horizontally, and then the display module is placed into the first concave portion13of the bottom plate1, wherein the lugs of the display module overlap the edges of the first concave portion13, that is, overlap the first flat portion11, and then the cover plate2is closed onto the bottom plate1to allow observation of the levelness of the cover plate2. If the levelness of the cover plate2is good, then the upper and lower surfaces of the lugs are respectively adhered to the first flat portion11and the second flat portion21, which indicates that the lugs are not deformed. If the levelness of the cover plate2is poor, then the second flat portion21cannot be adhered to the upper surfaces of the lugs, and/or the first flat portion11cannot be adhered to the lower surfaces of the lugs, and thus it can be determined that the lugs are deformed. Since the second flat portion21of the cover plate2and the first flat portion11of the bottom plate1are used as references for observation, the lug inspection is made easier, the levelness of the cover plate2is easier to observe, and the inspection time for lug deformation can be shortened. In addition, even if the number of the lugs is large, no missed detection or misdetection occurs, for the reasons that a deformation of only one of the lugs will influence the levelness of the cover plate2.

It should be noted that the bottom plate1comprises the first flat portion11and a first boss12disposed on the first flat portion11. The first boss12is disposed along periphery of the edge of the receiving area3for the display module body. When the display module is placed in the body receiving area3of the bottom plate1, the lugs of the display module overlap the first boss12. If a lug is deformed, when a region on the cover plate2corresponding to the first boss12is pressed, the pressure is relatively concentrated, which is more labor-saving. Similarly, a boss structure can also be provided on the cover plate2. For example, the cover plate2comprises a cover plate body21and a second boss22disposed on the cover plate body21. The second boss22is disposed along the periphery of the edge of the receiving area for the display module body, that is, the position of the second boss22corresponds to the position of the first boss12. The first boss12being disposed on the bottom plate body11or the second boss22being disposed on the cover plate body21is suitable for the occasion where the lugs of the display module are flush with the upper surface or the lower surface of the display module. For many commercially available display modules in which the lugs are disposed between the upper surface and the lower surface of the display module, the upper surface of the lug cannot be in contact with the cover plate2, or the lower surface of the lug cannot be in contact with the bottom plate1. In view of this, in the embodiment of the present disclosure, the first boss12is disposed on the first flat portion11, and the second boss22is disposed on the second flat portion21, which can enlarge the application range of the jig for inspecting the display module lug. In addition, the first boss12and the second boss22can be made of hard alloys or ferrous materials to ensure that the first boss12and the second boss22are not deformed when the cover plate2is pressed over and over to correct the lugs during a long period of time. The hardness of the first boss12should be greater than the hardness of the first flat portion11, and the hardness of the second boss22should be greater than the hardness of the second flat portion21.

In one embodiment of the present disclosure, the first concave portion13and/or the second concave portion23can be of a hollowed-out structure, for example, the first concave portion13is provided as a placement groove, correspondingly, and/or the second concave portion23is provided as a relief groove. The receiving area3for the display module body is formed by providing the first concave portion13on the bottom plate1as a placement groove and/or providing the second concave portion23on the cover plate2as a relief groove, and thus the structure is simple and easy to produce.

In one embodiment of the present disclosure, the first concave portion13and/or the second concave portion23can also be of a hollow structure, for example, the first concave portion13is formed as a hollow placement structure which can protect the surface of the display module, correspondingly, and/or the second concave portion23is formed as a hollow relief structure which can prevent contact with the surface of the display panel and avoid scratches.

In order to ensure accurate positioning of the cover plate2when covering the bottom plate1, a first limit structure is provided on the bottom plate1, and correspondingly, a second limit structure is provided on the cover plate2to cooperate with the first limit structure. The first limit structure is located at the first flat portion11of the bottom plate1, and correspondingly, the second limit structure is located at the second flat portion21of the cover plate2. The cover plate2and the bottom plate1can be accurately positioned by the fitting of the first limit structure and the second limit structure.

In one embodiment of the present disclosure, as illustrated inFIG. 2, the first limit structure is a limit post14disposed on the upper surface of the bottom plate1, and the second limit structure is a limit hole24penetrating through the cover plate2. When the cover plate2is closed, the limit post14is engaged with the limit hole24on the cover plate2, thereby realizing the positioning of the cover plate2and the bottom plate1. Optionally, the first limit structure can be a positioning pin, and correspondingly, the second limit structure is a positioning slot which fits the positioning pin.

In one embodiment according to the present disclosure, the bottom plate1and the cover plate2can be separate structures, and the bottom plate1and the cover plate2can also be connected with each other. In consideration that the bottom plate1and the cover plate2need to cooperate with each other during inspection of the display module, and the inspection jig of the separate structures is not convenient to store, in one embodiment of the present disclosure, the bottom plate1and the cover plate2are rotatably connected with each other to form a jig suitable for inspecting the display module. During the inspection of the display module, the cover plate2can be simply opened or closed for easy operation and convenient storage.

In one embodiment in accordance with the present disclosure, the rotatable connection structure of the bottom plate1and the cover plate2can be a hinge, a coil, or the like. For example, the bottom plate1and the cover plate2are rotatably connected by the coil4, and the coil is inexpensive, easy to produce, and simple to assemble.

For example, the coil4connecting the bottom plate1and the cover plate2is arched or circular. An arched coil4is used in the embodiment of the present disclosure, and the coil4is made of iron, is inexpensive and is easy to form.

Further, the first flat portion11of the bottom plate1is made of a material having a high hardness and a low density, which reduces the deformation of the first flat portion11, and the weight of the first flat portion11is relatively light and easy to pick up. In the embodiment of the present disclosure, the first flat portion11is made of phenolic plastic, namely, bakelite, which has a low density, a high hardness and good insulation performance, so as to prevent the display module from being affected by electrostatic factors.

The foregoing are merely exemplary embodiments of the disclosure, but the scope of protection of the present disclosure is not limited thereto. The protection scope of the disclosure shall be defined by the attached claims.

The present disclosure claims priority of Chinese Patent Application No. 201720467598.4 filed on Apr. 28, 2017, the disclosure of which is hereby entirely incorporated by reference as a part of the present disclosure.