A diffusion plate detection platform

Abstract

The utility model relates to the field of television production and manufacturing, concretely relates to a diffusion plate detection platform, including base, the plane subassembly for placing diffusion plate of the inclination setting on the base, the light source subassembly of connection in the plane subassembly back side to the support frame for supporting the plane subassembly of setting on the base, the light source subassembly includes the light source frame of connection with the plane subassembly, the plane light source of detachable connection in the light source frame, the light source frame includes the outer frame, the limiting frame for the location of plane light source of setting in the outer frame inboard. The utility model has set up the light source subassembly in the back side of plane subassembly, and the plane light source of light source subassembly can evenly emit light to the diffusion plate, avoids appearing the case of light and shade, guarantees the accuracy of diffusion plate detection, and then ensures the quality of subsequent product, and plane light source can replace different size, thereby flexible adaptation different size's product, and the universality is strong.

Description

Technical Field

[0001] This utility model relates to the field of television manufacturing, specifically to a diffusion plate testing station. Background Technology

[0002] A television set is a device that uses electronic technology to transmit moving images and audio signals, based on the persistence of vision and visual psychology. It is also an important tool for broadcasting and video communication. With technological advancements, traditional cathode ray tube (CRT) televisions and color picture tube (CPT) televisions have gradually been phased out of the market. Currently, common televisions on the market include LCD televisions (Liquid Crystal Display) and mini-LED televisions (Mini Light Emitting Diode). Taking an LCD television as an example, a television typically includes multiple components such as an LCD panel, motherboard, signal board, backlight module, speakers, and casing. Whether LCD or mini-LED, both rely on a backlight assembly to achieve a bright screen display. The diffuser plate is a crucial component of the backlight assembly; its main function is to convert the direct light from the backlight into more uniform diffused light, making the brightness distribution of the entire LCD screen more even, reducing local brightness differences, increasing the viewing angle, reducing reflections, and improving the viewing experience. To ensure the functionality of the diffuser plate, it needs to be inspected during the television manufacturing process to determine if it is damaged, dirty, has bubbles, or contains foreign objects. Traditionally, the diffuser plate is laid flat with a light source underneath for supplemental lighting. However, current inspection methods typically use a single light source. For example, the light source in the inspection device disclosed in Chinese Patent CN213762895U is only positioned at the location of the corresponding camera, resulting in limited coverage and uneven light projection onto the diffuser plate, affecting the accuracy of the inspection results. Furthermore, with the increasing size of modern televisions, such a light source structure makes it even more difficult to effectively cover the diffuser plate, failing to meet inspection requirements. Utility Model Content

[0003] To address the aforementioned issues, this invention provides a diffuser plate testing stage that can provide a uniform light source during diffuser plate testing, ensuring the accuracy of the testing results.

[0004] This utility model is achieved using the following solution:

[0005] A diffuser plate testing station includes a base, a planar assembly for placing a diffuser plate that is inclinedly disposed on the base, a light source assembly connected to the rear side of the planar assembly, and a support frame disposed on the base for supporting the planar assembly; the light source assembly includes a light source frame connected to the planar assembly, and a planar light source detachably connected to the light source frame; the light source frame includes an outer frame and a limiting frame disposed inside the outer frame for limiting the planar light source; a plurality of connecting seats for connecting the light source assembly are provided at the bottom rear side of the planar assembly.

[0006] Furthermore, the planar component includes an inclined frame that is tilted relative to the base, a transparent plate disposed on the inclined frame, a fixed base support disposed on the bottom edge of the inclined frame, and a movable base support assembly disposed on the bottom edge of the inclined frame.

[0007] Furthermore, the movable base assembly includes a guide rail connected to the bottom edge of the inclined frame, a movable base support mounted on the base support, and a locking member mounted on the base support.

[0008] Furthermore, both ends of the top of the light source frame are provided with locking connection components for connecting the light source frame and the planar component. The locking connection component includes several locking seats, pins connected to the locking seats, handles provided on the pins, and locking holes that cooperate with the handles. The locking holes are connected to the limiting frame, the locking seats are connected to the outer frame or the limiting frame, and the support frame is provided with a plug-in portion that cooperates with the pins.

[0009] Furthermore, the upper and lower side frames of the limiting frame are each provided with a plurality of first connecting holes.

[0010] Furthermore, an antistatic and dust removal assembly is provided on the top of the support frame. The antistatic and dust removal assembly includes a support frame disposed on the support frame and a plurality of ion fans connected to the support frame. The ion fans are located above the planar assembly.

[0011] Furthermore, both ends of the ion fan are connected to the support frame via connecting plates, and the connecting plates are provided with a second connecting hole and an arc-shaped hole.

[0012] Furthermore, the planar light source includes an LCD TV or a mini-LED TV.

[0013] Furthermore, the base is provided with a shelf, and the bottom of the base is provided with multiple casters.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] This invention features a light source assembly located on the rear side of the planar component. The planar light source of this assembly can uniformly project light onto the entire area of ​​the diffuser plate, avoiding uneven brightness and ensuring the accuracy of the diffuser plate detection. This, in turn, guarantees the quality of subsequent products. The planar light source can be replaced with different sizes, thus flexibly adapting to products of different sizes and offering strong versatility. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a diffusion plate testing station provided in an embodiment of the present utility model.

[0017] Figure 2 for Figure 1 Enlarged view of part A in the image.

[0018] Figure 3 for Figure 1 Enlarged view of part B in the image.

[0019] Figure 4 This is a schematic diagram from another perspective of an embodiment of the present utility model.

[0020] Figure 5 for Figure 4 Enlarged view of section C in the image.

[0021] The image includes:

[0022] Base 1, shelf 11, casters 12, flat assembly 2, connecting seat 21, inclined frame 22, transparent plate 23, fixed base support 24, movable base support assembly 25, guide rail 251, base support 252, movable base support 253, locking component 254, light source assembly 3, light source frame 31, outer frame 311, limiting frame 312, first connecting hole 313, flat light source 32, support frame 4, plug-in part 41, locking connection assembly 5, locking seat 51, pin 52, handle 53, locking hole component 54, antistatic dust removal assembly 6, support frame 61, ion fan 62, connecting plate 63, second connecting hole 64, arc-shaped hole 65. Detailed Implementation

[0023] To facilitate understanding of this utility model by those skilled in the art, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0024] Reference Figures 1 to 5 This utility model provides a diffuser plate testing stage, including a base 1, a planar component 2 for placing a diffuser plate that is inclinedly disposed on the base 1, a light source component 3 connected to the rear side of the planar component 2, and a support frame 4 disposed on the base 1 for supporting the planar component 2. The support frame 4 is disposed perpendicular to the base 1, and its top is connected to the top of the planar component 2 to support the planar component 2.

[0025] The light source assembly 3 includes a light source frame 31 connected to the planar assembly 2, and a planar light source 32 detachably connected within the light source frame. In this embodiment, the planar light source 32 includes an LCD TV or a mini-LED TV, or an OLED TV. Using a TV as the light source, and setting the TV's display to a single color (such as white) during use, can make the illumination more uniform, allowing the light to evenly cover the entire diffuser plate. The size of the TV can be selected according to the size of the diffuser plate to be tested. For example, when producing a 50-inch product, the TV used as the light source can be 50 inches or larger, as long as it can cover the detection area of ​​the diffuser plate.

[0026] The light source frame 31 includes an outer frame 311 and a limiting frame 312 disposed inside the outer frame 311 for limiting the planar light source 32. The rear bottom of the planar component 2 is provided with several connecting seats 21 for connecting the light source component 3. Specifically, the limiting frame 312 of the light source frame 31 and the planar component 2 cooperate to limit the planar light source 32. In this embodiment, the connecting seats 21 are U-shaped, and there are two connecting seats 21, respectively disposed on both sides of the bottom of the planar component 2.

[0027] The upper and lower side frames of the limiting frame 312 are each provided with a plurality of first connecting holes 313. The dimensions of the outer frame 311 are specifically set according to the maximum size of the detected diffuser plate. When the detected diffuser plate size is smaller than the maximum size, the limiting frame cannot limit all four sides of the TV after the TV is placed between the limiting frame and the planar component 2. In this case, a limiting bracket can be installed on the first connecting hole 313 to limit the TV.

[0028] Both ends of the top of the light source frame 31 are provided with locking connection components 5 for connecting the light source frame 31 and the planar component 2. The locking connection component 5 includes a plurality of locking seats 51, pins 52 connected to the locking seats 51, handles 53 provided on the pins 52, and locking holes 54 that cooperate with the handles 53. The locking holes 54 are connected to the limiting frame 312. The locking seats 51 are connected to the outer frame 311 or the limiting frame. The support frame 4 is provided with a plug-in portion 41 that cooperates with the pins 52. In this embodiment, at least one locking seat 51 is provided on the outer frame 311, and at least one locking seat 51 is provided on the limiting frame 312. The handle 53 has an elongated hole through which the locking member 54 passes. The locking member 54 has a locking hole. Pulling the handle 53 causes the pin 52 to be inserted into the insertion part 41. Rotating the pin 52 towards the limiting frame 312 causes the handle 53 to engage with the locking member 54. At this point, inserting the limiting lock into the hole of the locking member 54 achieves overall locking. After connecting the planar light source 32 to the limiting frame 312, the bottom of the outer frame 311 is inserted into the connecting seat 21. Then, the light source frame 31 is connected to the support frame 4 through the locking connection assembly 5 at the top, thus completing the fixation of the light source assembly 3.

[0029] The planar component includes an inclined frame 22 tilted relative to the base 1, a transparent plate 23 mounted on the inclined frame 22, a fixed base support 24 mounted on the bottom edge of the inclined frame 22, and a movable base support assembly 25 mounted on the bottom edge of the inclined frame 22. The transparent plate 23 is tilted to facilitate the placement of the diffuser plate onto it, while the fixed base support 24 and the movable base support assembly 25 at the bottom support the diffuser plate, preventing it from slipping during testing. The transparent plate 23 can be made of high-transmittance glass.

[0030] The movable base assembly 25 includes a guide rail 251 connected to the bottom frame of the inclined frame 22, a base 252 movably connected to the guide rail 251, a movable base 253 disposed on the base 252, and a locking member 254 disposed on the base 252. In actual operation, the base 252 can be moved along the guide rail 251 to a suitable position according to the size of the diffuser to be tested, and then locked in the current position by the locking member 254. The locking member 254 can be a screw, and the bottom frame of the inclined frame 22 can have several locking holes pre-set to match the screws; alternatively, locking can be achieved through the contact between the screw and the frame.

[0031] The top of the support frame 4 is equipped with an antistatic and dust removal component 6. The antistatic and dust removal component 6 includes a support frame 61 connected to the support frame 4 and several ion fans 62 connected to the support frame 61. The ion fans 62 are located above the planar component. During the production process, the diffuser plate needs to be transferred, during which static electricity may be generated on its surface. This static electricity can attract dust particles from the surrounding environment. Once adsorbed onto the diffuser plate surface, these dust particles can easily mislead the test results and affect the accuracy of the test. In this embodiment, two ion fans 62 are provided. During testing, they can blow on the surface of the diffuser plate to remove static electricity and also blow away dust, thus avoiding affecting the accuracy of the test.

[0032] Both ends of the ion fan 62 are connected to the support frame 61 via connecting plates 63. The connecting plates 63 are provided with a second connecting hole 64 and an arc-shaped hole 65. The center of the arc-shaped hole 65 coincides with the center of the second connecting hole 64. The ion fan is rotatably connected to the second connecting hole 64 and can be fixed by fasteners provided at the arc-shaped hole 65. Thus, the ion fan 62 can adjust its angle along the arc-shaped hole 65 so that the air outlet direction matches the diffuser plate of the current size.

[0033] The base 1 is provided with a shelf 11, which can be used to conveniently place tools and items needed during production operations. The bottom of the base 1 is provided with multiple casters 12, which are self-locking casters, making it easy to move the testing table to the required position.

[0034] In actual operation, firstly, select the corresponding planar light source 32 according to the size of the diffuser plate to be inspected, and connect the planar light source 32 to the light source frame 31, while adjusting the position of the movable base assembly 25. During inspection, first place the diffuser plate to be inspected on the transparent plate 23 of the planar assembly 2, and then control the planar light source to emit light to inspect the diffuser plate. The inspection process can be carried out manually, or a vision device can be set up at the front of the inspection table. The vision device captures the image of the diffuser plate and then the computer makes a judgment.

[0035] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the scope of the appended claims.

Claims

1. A diffusion plate inspection stage, characterized by, The device includes a base, a planar assembly inclinedly disposed on the base for placing a diffuser plate, a light source assembly connected to the rear side of the planar assembly, and a support frame disposed on the base for supporting the planar assembly; the light source assembly includes a light source frame connected to the planar assembly, and a planar light source detachably connected to the light source frame; the light source frame includes an outer frame and a limiting frame disposed inside the outer frame for limiting the planar light source; a plurality of connecting seats for connecting the light source assembly are provided at the bottom rear side of the planar assembly.

2. The diffusion plate testing stage of claim 1, wherein, The planar component includes an inclined frame that is tilted relative to the base, a transparent plate disposed on the inclined frame, a fixed base support disposed on the bottom edge of the inclined frame, and a movable base support assembly disposed on the bottom edge of the inclined frame.

3. The diffusion plate testing stage of claim 2, wherein, The movable base assembly includes a guide rail connected to the bottom edge of the inclined frame, a base movably connected to the guide rail, a movable base component disposed on the base, and a locking component disposed on the base.

4. The diffusion plate testing station of claim 1, wherein, Both ends of the top of the light source frame are provided with locking connection components for connecting the light source frame and the planar component. The locking connection component includes several locking seats, pins connected to the locking seats, handles provided on the pins, and locking holes that cooperate with the handles. The locking holes are connected to the limiting frame, the locking seats are connected to the outer frame or the limiting frame, and the support frame is provided with a plug-in part that cooperates with the pins.

5. The diffusion plate testing station of claim 1, wherein, The upper and lower side frames of the limiting frame are each provided with a number of first connecting holes.

6. The diffusion plate testing station of claim 1, wherein, The top of the support frame is provided with an antistatic and dust removal component. The antistatic and dust removal component includes a support frame disposed on the support frame and a plurality of ion fans connected to the support frame. The ion fans are located above the planar component.

7. The diffusion plate testing station of claim 6, wherein, Both ends of the ion fan are connected to the support frame via connecting plates, and the connecting plates are provided with a second connecting hole and an arc-shaped hole.

8. The diffusion plate testing station of claim 1, wherein, The planar light source includes LCD TVs or mini-LED TVs.

9. The diffusion plate testing station of claim 1, wherein, The base is provided with a shelf, and the bottom of the base is provided with multiple casters.

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