A fixing device and measuring system for measuring curved surface parameters of screen module

Abstract

The present invention relates to the technical field of screen module measurement, and in particular to a fixing device and measurement system for the curved surface parameters of a screen module, wherein the fixing device includes a bracket, a module platform, a positioning member, a module slide, and a rotating assembly; the module platform is mounted on the bracket; the module slide is disposed on the module platform and can slide on the module platform; the positioning member is used to fix the module slide on the module platform, and the screen module is fixed to the module platform via the module slide; thereby, the screen module to be measured is fixed on the module platform according to the size of the screen module to be measured; the rotating assembly is rotatably connected to the bracket and is used to adjust the tilt angle of the module platform. The present invention can solve the problem in the prior art that when measuring the curved surface parameters of a screen module, the measuring fixture needs to be customized according to the size and degree of curvature of the screen.

Description

Technical Field

[0001] The present invention relates to the technical field of screen module measurement, and in particular to a fixing device and a measuring system for measuring curved surface parameters of a screen module. Background Art

[0002] In the display industry, the screen module of the curved screen includes a multi-film layer structure. The measurement of the arc surface parameters of the screen and the cover plate is one of the important parameters for evaluating the quality of the module. The edge size of the module cover plate and the screen body and the amount of glue overflow between the cover plate and the screen body are all arc surface parameters that need to be measured. Specifically, the film layers of the screen module are bonded by colloid, and the edges between the film layers do not overlap. There is a certain distance between the module cover plate and the edge of the screen body, and there will be glue overflow at the edge of the screen body. In the quality assessment, the edge distance and glue overflow need to be controlled within the standard value range. Therefore, in order to produce qualified display screen modules and deliver them to the next process for use, screen module products, especially curved screens, need to be tested for edge distance and glue overflow in the arc surface parameters before production and shipment.

[0003] In existing technologies, the manufacturing and lamination parameters of the curved OLED module screen and cover require that the product have a certain tilt angle. To measure the curved surface parameters, the product must be tilted at a certain angle relative to the horizontal plane and fixed. There are two main types of measurement devices currently used on the market:

[0004] The first is to use a simple jig test, such as Figure 1 As shown in the two sub-figures (a) and (b), the screen is placed on a simple jig, and the bottom jig must have a step to fix the curved OLED module so that the projection measurement equipment can achieve a projection measurement effect. A curved OLED module has long and wide sides, so two projection jigs are required, and the size of each jig needs to be customized according to the size of the screen. Since different curved OLED modules have different lengths, widths, and degrees of curvature, the angles of the customized test auxiliary jigs are also different. In other words, the arc size measurement jigs for different curved OLED modules are also different. Since the jigs used for testing cannot be unified, the cost of factory jigs is increased; at the same time, the jig manufacturing time will also affect the project development progress.

[0005] The second method is to use automated equipment for inspection, such as using an automatic robot and a carrier for collaborative appearance inspection. Although automation is achieved, the size of the carrier also needs to be customized according to the size of the screen or a series of complex structures need to be designed to achieve switching.

[0006] In summary, it is necessary to propose a new arc parameter detection device for curved screen modules to solve the above-mentioned technical problem that the jig needs to be customized according to the size of the screen when performing manual or equipment detection. Summary of the Invention

[0007] The embodiment of the present invention provides a fixing device for measuring the curved surface parameters of a screen module, which can solve the technical problem in the existing display module production process that the detection device needs to be customized according to the size of the screen.

[0008] Based on the same inventive concept, an embodiment of the present invention further provides a measurement system for measuring the curved surface parameters of a screen module.

[0009] An embodiment of the present invention provides a fixing device for measuring the arc surface parameters of a screen module, comprising a bracket, a module platform, a positioning member, a module sliding member, and a rotating assembly;

[0010] The module platform is mounted on the bracket; the module sliding member is arranged on the module platform and can slide on the module platform, and the positioning bolt is used to fix the module sliding member on the module platform; the screen module is fixed on the module platform through the module sliding member;

[0011] The rotating assembly is rotatably connected to the bracket and is used to adjust the tilt angle of the module platform.

[0012] In a preferred embodiment, the module sliding member is a module slider, the module slider is provided with a sliding groove, and the module platform is provided with a platform horizontal portion; the module slider is sleeved on the module platform through the sliding groove and moves along the platform horizontal portion.

[0013] Further preferably, a threaded hole is provided on the module slider, and the positioning piece fixes the module slider on the module platform through threaded engagement.

[0014] In a preferred embodiment, the rotating assembly includes a fixed handle and a rotating handle, which are fixed on both sides of the module platform and rotatably connected to the bracket. The rotating handle can drive the module platform to rotate; wherein, the rotating handle and the module platform are connected by a buckle structure.

[0015] Further preferably, the fixed handle includes a first handle portion, a first circular shaft portion and a positioning pin portion, and the rotating handle includes a second handle portion, a second circular shaft portion and a convex portion; a first axial hole and a second axial hole with the same axis are provided on both sides of the bracket, and the first handle portion is connected to the first axial hole through the first circular shaft portion; the second handle portion is connected to the second axial hole through the second circular shaft portion.

[0016] Further preferably, a first mounting portion and a second mounting portion are provided on both sides of the module platform; the fixed handle cooperates with the first mounting portion through the positioning pin portion for fixed connection with the module platform; the rotating handle cooperates with the second mounting portion through the protrusion for fixed connection with the module platform.

[0017] In a preferred embodiment, the module sliding part is a module slider, which is a U-shaped structure with relative through holes and threaded holes at both ends of the U-shaped structure; the positioning part is a positioning bolt, one end of which is screwed into the threaded hole of the module slider, and the module slider is fixed to the module platform through threaded cooperation.

[0018] An embodiment of the present invention further provides a measurement system, which includes an identification device, a mounting bracket, and a fixing device provided by an embodiment of the present invention. The identification device is fixed to a bracket in the fixing device via the mounting bracket.

[0019] Compared to existing technologies, the fixture and measurement system for measuring screen module curved surface parameters provided in embodiments of the present invention are universally compatible with display modules of varying length and width. This eliminates the need to replace measuring jigs with varying length and width specifications when a display module is secured to the fixture for measurement, thereby improving the production efficiency of the measurement equipment. Furthermore, the fixture is universally compatible with display modules of varying curvature, eliminating the need to replace auxiliary jigs with varying inclination angles when a display module is secured to the fixture for measurement, further improving production efficiency and jig cost control. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 Sub-figures (a) and (b) are schematic diagrams of the method for measuring the curved surface parameters of the screen module in the prior art;

[0022] Figure 2 1 is an exploded schematic diagram of a fixing device for measuring the curved surface parameters of a screen module according to an embodiment of the present invention;

[0023] Figure 3 Schematic diagram of the structure of a fixing device for measuring the curved surface parameters of a screen module in an embodiment of the present invention;

[0024] Figure 4 is a cross-sectional view of a fixing device for measuring the curved surface parameters of a screen module according to an embodiment of the present invention;

[0025] Figure 5 is a cross-sectional view of a module slider in an embodiment of the present invention;

[0026] Figure 6 is a schematic structural diagram of a fixed handle in an embodiment of the present invention;

[0027] Figure 7Schematic diagram of the fixed handle structure of the fixing device for measuring the curved surface parameters of the screen module according to an embodiment of the present invention;

[0028] Figure 8 Schematic diagram of the rotating handle structure of the fixing device for measuring the curved surface parameters of the screen module according to an embodiment of the present invention;

[0029] Figure 9 Schematic diagram of the structure of the measurement system in an embodiment of the present invention.

[0030] Description of the drawings: 1. Bracket; 11. Axis hole; 12. Shoulder; 13. Support part; 14. Pointer scale; 2. Module platform; 21. Horizontal part of the platform; 22. First mounting part; 23. Second mounting part; 3. Positioning bolt; 31. Threaded section; 32. Knurled part; 4. Module slider; 41. Threaded hole; 42. Sliding groove; 421. Horizontal part of the notch; 4', Module slider; 41`, U-shaped structure; 411`, through hole; 412`, threaded hole; 5. Fixed handle; 51. First handle part; 52. First circular shaft part; 53. Positioning pin part; 6. Rotating handle; 61. Second handle part; 62. Second circular shaft part; 63. Protrusion; 64. Pointer part; 7. Support frame; 100. Measuring system; 101. Fixing device; 102. Identification device; 103. Mounting bracket. DETAILED DESCRIPTION

[0031] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article, or device comprising the elements.

[0033] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The embodiments will be described in detail below with reference to the accompanying drawings.

[0034] Example 1

[0035] like Figure 2-5 As shown, this embodiment provides a fixing device 101 for measuring the arc surface parameters of a screen module, comprising a bracket 1, a module platform 2, a positioning bolt 3, and a module slider 4. The module platform is mounted on the bracket, the module slider is arranged on the module platform and can slide on the module platform, and the positioning bolt is used to fix the module slider on the module platform, thereby fixing the screen module to be measured on the module platform according to the size of the screen module to be measured. The bracket is placed on an external working platform; the screen module is fixed to the module platform by the module slider, and the module slider can be slid on the module platform according to the length and width of different screen modules to adjust the size of the screen module that can be fixed by the module slider.

[0036] In this embodiment, the module slider is provided with a sliding groove 42, and the module platform is provided with a horizontal platform portion 21. The module platform's shape matches the shape of the sliding groove 42. The module slider is mounted on the module platform via the sliding groove 42 and moves along the horizontal platform portion. The horizontal platform portion of the module platform is used to stably position the screen module on the module platform. Correspondingly, the sliding groove 42 also has a notched horizontal portion 421. The sliding groove 42 cooperates with the horizontal platform portion through the notched horizontal portion to limit rotation between the module slider and the module platform, ensuring stable positioning of the screen module and preventing it from being affected by the rotation of the module slider.

[0037] In this embodiment, two module sliders are preferably provided, one clamped on each side of the screen module to secure the screen module to the module platform, thereby preventing the edge of the screen module from contacting the module platform. Because the screen module has a multi-layer structure, the design of two module sliders minimizes the contact area between the edge of the screen module and measurement fixtures such as the module platform, reducing the risk of damage to the screen module.

[0038] The positioning bolt includes a threaded section 31 and a knurled portion 32. The module slider also has a threaded hole 41. In the fixed state, one end of the positioning bolt is screwed into the threaded hole of the module slider and passes through the module slider to press against the module platform. The friction generated by the tightening force can fix the module slider. The knurled portion has knurled patterns on the surface, allowing the operator to easily adjust the tension of the positioning bolt without the need for additional tools. Therefore, the threaded engagement between the positioning bolt and the module slider secures the module slider to the module platform.

[0039] As an optional embodiment, the module slider can be a single one, in which case the screen module is fixed between one side of the module platform and the module slider. In an embodiment in which there are two module sliders, the screen module is fixed between the two module sliders.

[0040] The fixing device of this embodiment further includes a fixed handle 5 and a rotating handle 6. The fixed handle and the rotating handle are fixed on both sides of the module platform and are rotatably connected to the bracket. The rotating handle can drive the module platform to rotate.

[0041] Specifically, if Figure 6 、 7 As shown, the fixed handle includes a first handle portion 51, a first circular shaft portion 52 and a positioning pin portion 53, and the rotating handle includes a second handle portion 61, a second circular shaft portion 62 and a convex portion 63; two coaxial axial holes 11, namely a first axial hole and a second axial hole, are provided on both sides of the bracket. The fixed handle and the rotating handle are respectively connected to the axial holes 11 of the bracket through the circular shaft portion to achieve a rotatable connection, that is, the first handle portion of the fixed handle is connected to the first axial hole of the bracket through the first circular shaft portion, and the second handle portion of the rotating handle is connected to the second axial hole of the bracket through the second circumferential portion; a first mounting portion 22 and a second mounting portion 23 are provided on both sides of the module platform. The fixed handle cooperates with the first mounting portion through the positioning pin portion for fixed connection with the module platform to ensure that the module platform can be fixed and stable after rotating a certain angle, so as to facilitate fixing the screen module at a corresponding tilt angle, thereby measuring its arc surface parameters; the rotating handle cooperates with the second mounting portion through the convex portion for fixed connection with the module platform; and the two handle portions can be cylindrical for easy holding by the operator. Through the above structure, the operator can adjust the inclination angle between the module platform and the horizontal reference plane by rotating the rotary handle.

[0042] In this embodiment, the protrusion located on the head of the rotating handle can be an insert block, and the mounting portion of the module platform can be a slot. The rotating handle is connected to the module platform by matching the insert block with the slot.

[0043] It should be noted that in other embodiments of the present invention, the connection between the rotary handle and the module platform is not limited to the connection between the plug and the slot, but can also be a common buckle structure connection method such as a keyway and a spline.

[0044] This embodiment may be further preferably configured such that the rotating handle further comprises a pointer portion 64 , and the bracket further comprises a pointer scale 14 , which is arranged around the pointer portion so that the operator can visually confirm the angle between the module platform and the horizontal reference after rotation.

[0045] The bracket includes a shoulder 12 and a support portion 13. The shoulders are arranged on both sides of the bracket and are higher than the module slider, which can prevent the module slider from sliding out of the bracket; the support portion is the processed bottom of the bracket, which is used as a horizontal reference to be placed stably on the external work platform to ensure that the angle of the module platform installed on the bracket relative to the work platform is accurate.

[0046] This embodiment may be further preferably configured such that the fixing device further comprises a support frame 7 which is mounted under the bracket by bolts and is used to lengthen the height of the bracket from the ground to accommodate the measurement of a larger screen module when the height of the bracket is not suitable for a larger screen module.

[0047] In this embodiment, the shoulder portion and the supporting portion of the bracket are formed by welding.

[0048] This embodiment can be further preferably configured such that the shoulder and support portion of the bracket are installed by means of bolts and positioning pins. The bracket adopting the above-mentioned installation method can save welding manufacturing costs, thereby reducing the overall manufacturing cost of the measuring device and facilitating promotion and application.

[0049] Example 2

[0050] This embodiment provides a fixing device 101 for measuring the arc surface parameters of a screen module, comprising a bracket 1, a module platform 2, a positioning bolt 3, and a module slider 4'. The module platform is mounted on the bracket; the module slider is mounted on the module platform and can slide on the module platform; the positioning bolt is used to position the module slider on the module platform, thereby fixing the screen module to be measured on the module platform according to the size of the screen module to be measured. The bracket is placed on an external working platform, and the module slider is used to fix the screen module, and according to the length and width dimensions of different screen modules, the module slider slides on the module platform to adjust the fixed size.

[0051] The difference between Example 2 and Example 1 is that Figure 8 As shown, the module slider 4' has a U-shaped structure 41', and the two ends of the U-shaped structure have relative through holes 411' and threaded holes 412'. The operator tightens the two ends of the U-shaped structure through the positioning bolts to narrow the distance between the two ends of the U-shaped structure to generate a clamping force on the module platform, thereby fixing the module slider on the module platform.

[0052] Example 3

[0053] like Figure 9As shown, based on the same inventive concept as Examples 1 and 2, this embodiment provides a measurement system 100, which includes the fixing device 101 of Examples 1 or 2, an identification device 102, and a mounting bracket 103. The identification device 102 is fixed to the bracket of the fixing device via the mounting bracket and is used to capture the curved surface parameters of the screen module. The identification device includes but is not limited to a 2D camera, a 3D camera, a laser sensor, a laser rangefinder, etc. The structure of the fixing device 101 has been described in detail in Examples 1 and 2 above, and for the sake of brevity, it will not be repeated in this embodiment.

[0054] It should be understood that the present invention is not limited to the specific configurations and processes described above and illustrated in the figures. For the sake of brevity, a detailed description of known methods is omitted. In the above embodiments, several specific steps are described and illustrated as examples. However, the method of the present invention is not limited to the specific steps described and illustrated. Those skilled in the art may make various changes, modifications, and additions, or change the order of the steps after understanding the spirit of the present invention.

[0055] It should also be noted that the exemplary embodiments described herein describe methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the steps described above. In other words, the steps may be performed in the order described in the embodiments, or in a different order, or several steps may be performed simultaneously.

[0056] The above is only a specific embodiment of the present invention. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be covered within the protection scope of the present invention.

Claims

1. A fixing device for measuring the arc surface parameters of a screen module, characterized in that: Includes brackets, module platforms, positioning parts, module slides and rotating components; The module platform is mounted on the bracket; the module sliding member is arranged on the module platform and can slide on the module platform, and the positioning member is used to fix the module sliding member on the module platform; The screen module is fixed on the module platform through the module sliding member; The rotating assembly is rotatably connected to the bracket to adjust the tilt angle of the module platform; The module sliding member is a module slider, the module slider is provided with a sliding groove, and the module platform is provided with a platform horizontal portion; the module slider is sleeved on the module platform through the sliding groove and moves along the platform horizontal portion; The screen module is fixed on the module platform by the module slider, and the module slider can be slid on the module platform to adjust the size of the screen module that can be fixed by the module slider according to the length and width of different screen modules; The rotating assembly includes a fixed handle and a rotating handle. The fixed handle and the rotating handle are fixed on both sides of the module platform and rotatably connected to the bracket. The rotating handle can drive the module platform to rotate; Among them, the rotating handle is connected to the module platform through a buckle structure; The fixed handle includes a first handle portion, a first circular shaft portion, and a positioning pin portion, and the rotating handle includes a second handle portion, a second circular shaft portion, and a convex portion; a first axial hole and a second axial hole are coaxially provided on both sides of the bracket, the first handle portion and the first axial hole are connected through the first circular shaft portion; the second handle portion and the second axial hole are connected through the second circular shaft portion; A first mounting portion and a second mounting portion are provided on both sides of the module platform; the fixed handle cooperates with the first mounting portion through a positioning pin portion, and is used to be fixedly connected to the module platform, fixing the screen module at a corresponding inclination angle, so as to measure its arc surface parameters; the rotating handle cooperates with the second mounting portion through a convex portion, and is used to be fixedly connected to the module platform, so that the inclination angle between the module platform and the horizontal reference plane can be adjusted by rotating the rotating handle.

2. The fixing device for measuring the curved surface parameters of the screen module according to claim 1, characterized in that: The module slider is provided with a threaded hole, and the positioning piece fixes the module slider on the module platform through threaded engagement.

3. The fixing device for measuring the curved surface parameters of a screen module according to claim 1, characterized in that: The rotating handle further comprises a pointer portion, and the bracket further comprises a pointer scale, which is arranged around the pointer portion.

4. The fixing device for measuring the curved surface parameters of a screen module according to claim 1, characterized in that: There is a single module sliding member, and the screen module is fixed between one side of the module platform and the module sliding member; or there are two module sliding members, and the screen module is fixed between the two module sliding members.

5. The fixing device for measuring the curved surface parameters of a screen module according to claim 1, characterized in that: The module sliding part is a module slider, which is a U-shaped structure with opposite through holes and threaded holes at both ends of the U-shaped structure; the positioning part is a positioning bolt, one end of which is screwed into the threaded hole of the module slider, and the module slider is fixed to the module platform through threaded cooperation.

6. A measurement system, characterized in that The measuring system comprises an identification device, a mounting bracket and the fixing device according to any one of claims 1 to 5, wherein the identification device is fixed to a bracket in the fixing device via the mounting bracket.

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