Light inspection equipment for display screen backlight module

Abstract

The utility model belongs to the technical field of display screen detection, and particularly relates to a lamp detection device for a display screen backlight module, which comprises a displacement assembly capable of adjusting the transverse position of the backlight module to be detected in the device. A clamping assembly which can enable the backlight module to be detected in a horizontal state and can effectively fix the backlight modules of different specifications is arranged in the displacement assembly, and a detection assembly which can fully detect the backlight module is arranged above the clamping assembly. According to the utility model, the backlight module to be detected can be effectively fixed in the clamping assembly through the cooperation of the clamping block which can be changed in position in the buckling piece under the action of the moving piece and the clamping pad, so that the backlight module can be prevented from being damaged due to excessive clamping, and the backlight module can be prevented from falling off and being damaged during detection due to the fact that the backlight module is not effectively clamped; the displacement assembly can conveniently drive the clamping assembly to transversely move, and the detection point of the detection assembly can be longitudinally changed, so that the detected surface of the backlight module can be fully detected.

Description

Technical Field

[0001] The utility model belongs to the technical field of display screen detection, and in particular relates to a light detection device for a display screen backlight module. Background Art

[0002] The backlight module is a key component of LCD panels. Its function is to provide sufficient brightness and evenly distributed light to enable the display to display images properly. To ensure the display's quality, the backlight module undergoes a post-production inspection.

[0003] A Chinese patent document with authorization announcement number CN220854124U discloses a light inspection device for display backlight module production. After the sliding block slides into place, the left side of the abutment block can be abutted against one side of the backlight module through the rebound effect of the connecting spring and the elastic rod, making the backlight module more stable during inspection. The stable backlight module is then driven to rotate by the power of the first motor, making the inspection more comprehensive.

[0004] However, in the prior art, the backlight module under inspection is clamped and fixed only by abutment blocks that tend to move toward each other due to springs. This makes it difficult to ensure the horizontality of the inspected surface of the backlight module, and there are large differences in the fixing effects for backlight modules of different specifications, which may lead to inaccurate inspection results or damage to the backlight module due to inspection. Therefore, a light inspection device for a display backlight module is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a light inspection device for a display screen backlight module.

[0006] The technical solutions adopted in this utility model are as follows:

[0007] A light inspection device for display screen backlight modules includes a shift assembly capable of adjusting the lateral position of a backlight module to be inspected within the device. The shift assembly includes a clamping assembly capable of holding the backlight module in a horizontal position for inspection and effectively securing backlight modules of different specifications. A detection assembly capable of fully inspecting the backlight module is located above the clamping assembly.

[0008] The clamping assembly includes a fastening piece that can easily take, place, and flip the backlight module, a locking piece that can abut the edge of the backlight module to be inspected to prevent it from falling out of the fastening piece, and a movable piece that can effectively fix backlight modules of different specifications;

[0009] The fastening member includes a first L-shaped frame movably connected to the displacement assembly, and a second L-shaped frame movably connected to one side of the first L-shaped frame;

[0010] The clamping member comprises a clamping pad fixedly connected to the inner side of the first L-shaped frame, and a clamping block is arranged on one side of the clamping pad.

[0011] Preferably, the fastening member further comprises a locking rod movably connected to the second L-shaped frame, one end of the locking rod is fixedly connected to the push block, and the outer side surface of the locking rod is movably connected to a spring.

[0012] Preferably, the movable member comprises a slide movably mounted on the second L-shaped frame, a locking knob is fixedly mounted in the slide, and a bidirectional telescopic rod is movably connected between the slides.

[0013] Preferably, one side of the bidirectional telescopic rod is movably connected with a locking block.

[0014] Preferably, the first L-shaped frame is rotatably connected to the second L-shaped frame.

[0015] Preferably, the first L-shaped frame, the second L-shaped frame and the spring are all slidably connected to the locking rod, and the second L-shaped frame is slidably connected to the hand-pushing block.

[0016] Preferably, the second L-shaped frame is slidably connected to the slide, and the slide and the engaging block are both rotatably connected to the bidirectional telescopic rod.

[0017] The beneficial effects of the present invention are as follows: it is convenient to effectively fix the backlight module to be inspected in the clamping assembly through the clamping block that can change its position in the fastening part under the action of the movable part, and cooperate with the clamping pad, thereby avoiding the backlight module from being damaged due to excessive clamping, and avoiding the backlight module from falling and being damaged during inspection due to ineffective clamping; it is convenient to drive the clamping assembly to move horizontally through the shifting assembly, and the longitudinal change of the detection point of the detection assembly, so as to achieve full detection of the inspected surface of the backlight module; it is convenient to realize the rapid replacement and movement of the backlight module to be inspected through the rotation of the second L-shaped frame relative to the first L-shaped frame, and the overall movement and flipping of the clamping assembly by the staff on the basis of the effective fixation of the backlight module by the clamping part. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a structural diagram of a light inspection device for a display backlight module according to the present invention;

[0020] Figure 2 This is a schematic diagram of the main structure of a light inspection device for a display backlight module according to the present invention;

[0021] Figure 3 yes Figure 1 Schematic diagram of the structure of some parts;

[0022] Figure 4 yes Figure 1 A schematic diagram of the structure of some parts of the same scale;

[0023] Figure 5 yes Figure 4 Another perspective structural diagram;

[0024] Figure 6 This is a schematic cross-sectional view of some parts of the clamping assembly of a light inspection device for a display backlight module according to the present invention;

[0025] Figure 7 yes Figure 6 A schematic diagram of the structure at equal proportions is shown.

[0026] The following are the descriptions of the reference numerals:

[0027] 1. Shift assembly; 101. Frame; 102. Bracket; 103. Support; 104. Screw; 105. Motor; 106. Support rod; 107. Transverse frame; 108. Ball head rod; 2. Clamping assembly; 201. First L-shaped frame; 202. Second L-shaped frame; 203. Engaging rod; 204. Hand push block; 205. Spring; 206. Slide; 207. Locking knob; 208. Two-way telescopic rod; 209. Engaging pad; 210. Engaging block; 3. Detection assembly; 301. Linear guide; 302. Electric slide; 303. Carrier; 304. Light detector. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0030] The present invention will be further described below through embodiments in conjunction with the accompanying drawings.

[0031] like Figure 1-Figure 7 As shown, a light inspection device for display screen backlight modules includes a shift component 1 that can adjust the lateral position of the backlight module to be inspected in the device, a clamping component 2 is provided in the shift component 1, which can make the backlight module in a horizontal state for inspection and can effectively fix backlight modules of different specifications, and a detection component 3 is provided above the clamping component 2 for fully inspecting the backlight module.

[0032] In this embodiment: the shift assembly 1 includes a frame 101, a bracket 102 is fixedly installed in the frame 101, a support 103 is fixedly installed in the bracket 102, a screw 104 is movably connected between the supports 103, one end of the screw 104 is fixedly connected to a motor 105, a support rod 106 is fixedly connected between the brackets 102, a transverse frame 107 is provided between the screw 104 and the support rod 106, and a ball head rod 108 is fixedly connected above the transverse frame 107;

[0033] The support 103 is rotatably connected to the lead screw 104, the lead screw 104 is threadedly connected to the transverse frame 107, and the support rod 106 is slidably connected to the transverse frame 107;

[0034] The frame 101 provides an installation position for the bracket 102 and some parts of the detection component 3 to ensure the normal operation of the equipment. The screw 104 is installed between the two brackets 102 through the support 103, and the screw 104 can rotate under the drive of the motor 105. The rotated screw 104 drives the transverse frame 107, whose movable range is limited by the support rod 106, to move transversely within the equipment. The ball head rod 108 limits the movable range of the first L-shaped frame 201 and the second L-shaped frame 202 on the transverse frame 107.

[0035] In this embodiment: the clamping component 2 includes a fastening part that can easily take, place and flip the backlight module, a clamping part that can abut the edge of the backlight module to be inspected to prevent it from falling from the fastening part, and a movable part that can effectively fix backlight modules of different specifications. The fastening part includes a first L-shaped frame 201 movably connected to the shifting component 1, and a second L-shaped frame 202 is movably connected to one side of the first L-shaped frame 201. The clamping part includes a clamping pad 209 fixedly connected to the inner side of the first L-shaped frame 201, and a clamping pad 209 is provided on one side. A locking block 210 is provided, and the fastening part further includes a locking rod 203 movably connected to the second L-shaped frame 202, one end of the locking rod 203 is fixedly connected to the push block 204, and the outer side of the locking rod 203 is movably connected to a spring 205, and the moving part includes a slide 206 movably mounted on the second L-shaped frame 202, a locking knob 207 is fixedly mounted inside the slide 206, a two-way telescopic rod 208 is movably connected between the slides 206, and a locking block 210 is movably connected to one side of the two-way telescopic rod 208;

[0036] The first L-shaped frame 201 and the second L-shaped frame 202 are both slidably connected to the ball head rod 108, and the first L-shaped frame 201 and the second L-shaped frame 202 are rotatably connected. The first L-shaped frame 201, the second L-shaped frame 202, and the spring 205 are all slidably connected to the locking rod 203. The second L-shaped frame 202 is slidably connected to the push block 204. The second L-shaped frame 202 is slidably connected to the slide 206. The slide 206 and the locking block 210 are both rotatably connected to the bidirectional telescopic rod 208.

[0037] The locking pad 209 is installed by the first L-shaped frame 201, and the movable part that can change the position of the locking block 210 is installed by the second L-shaped frame 202. The spring 205 acts on the hand pushing block 204, so that the hand pushing block 204 can drive the locking rod 203 to move toward the second L-shaped frame 202 when there is no external force. The first L-shaped frame 201 and the second L-shaped frame 202 can be tightly connected by the contact between the locking rod 203 and the first L-shaped frame 201. The position of the slide 206 on the second L-shaped frame 202 is locked by tightening the locking knob 207. The position of the two ends of the bidirectional telescopic rod 208 in the device is adjusted by the slide 206 after the position change. The bidirectional telescopic rod 208, whose own length and angle relative to the second L-shaped frame 202 can be changed, is used to install the locking block 210 so that the locking block 210 can cooperate with the locking pad 209 to fully engage the edge of the backlight module to be inspected.

[0038] In this embodiment, the detection assembly 3 includes a linear guide rail 301 fixedly installed in the frame 101, an electric slide 302 is movably installed on the linear guide rail 301, a carrier 303 is fixedly connected below the electric slide 302, and a light detector 304 is fixedly installed below the carrier 303;

[0039] The electric slide 302 drives the carrier 303 to move along the linear guide rail 301 longitudinally arranged in the device, and the carrier 303 is installed with a light inspector 304 for performing light inspection on the backlight module.

[0040] Working principle: When the device is installed and used for the inspection of the display backlight module, the clamping assembly 2 is removed from the device. Then, according to the specifications of the backlight module to be inspected, the locking knob 207 is turned to adjust the position of the slide 206 on the second L-shaped frame 202. After the backlight module is placed on the clamping pad 209 and pressed against the clamping pad 209, the clamping block 210 can be pulled to press against the corner of the backlight module away from the clamping pad 209, and then the locking knob 207 is tightened to effectively fix the backlight module in the clamping assembly 2.

[0041] After the fixation is completed, the staff can hold the first L-shaped frame 201 and the second L-shaped frame 202 and place the clamping assembly 2 with the backlight module fixed on it back on the transverse frame 107. Then, the horizontal position of the clamping assembly 2 and the backlight module in the device can be adjusted by the operation of the motor 105, and the vertical position of the light detector 304 in the device can be adjusted by the operation of the electric slide 302 until the light detector 304 completes the full inspection of the upward side of the backlight module. During the inspection process, if the backlight module needs to be turned over, it can be conveniently done by removing the clamping assembly 2 and turning it over.

[0042] After the test is completed, if a backlight module of the same specification needs to be replaced for further testing, the clamping assembly 2 can be removed and the push block 204 can be pushed horizontally to move the locking rod 203 away from the second L-shaped frame 202. After the larger diameter portion of the locking rod 203 at the end away from the push block 204 is separated from the first L-shaped frame 201, the second L-shaped frame 202 can be rotated outward relative to the first L-shaped frame 201 to move the locking block 210 away from the backlight module along with the second L-shaped frame 202, thereby freeing the backlight module from being fixed by the clamping assembly 2. After the new backlight module is placed on the locking pad 209, the new backlight module can be quickly fixed by fine-tuning the position of the locking block 210 relative to the bidirectional telescopic rod 208 while resetting the second L-shaped frame 202.

[0043] The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A light inspection device for a display backlight module, characterized in that: The device comprises a shifting assembly (1) capable of adjusting the lateral position of a backlight module to be inspected within the device, a clamping assembly (2) capable of placing the backlight module in a horizontal position for inspection and effectively fixing backlight modules of different specifications arranged within the shifting assembly (1), and a detection assembly (3) capable of fully inspecting the backlight module arranged above the clamping assembly (2); The clamping assembly (2) comprises a fastening part that can conveniently take, place, and flip the backlight module, a locking part that can abut against the edge of the backlight module to be inspected to prevent it from falling from the fastening part, and a movable part that can effectively fix backlight modules of different specifications; The fastening member comprises a first L-shaped frame (201) movably connected to the displacement assembly (1), and a second L-shaped frame (202) is movably connected to one side of the first L-shaped frame (201); The engaging member comprises an engaging pad (209) fixedly connected to the inner side of the first L-shaped frame (201), and an engaging block (210) is provided on one side of the engaging pad (209).

2. The light inspection device for display backlight module according to claim 1, characterized in that: The fastening member further comprises a locking rod (203) movably connected to the second L-shaped frame (202), one end of the locking rod (203) is fixedly connected to a hand-pushing block (204), and the outer side surface of the locking rod (203) is movably connected to a spring (205).

3. The light inspection device for display backlight module according to claim 2, characterized in that: The movable part comprises a slide (206) movably mounted on the second L-shaped frame (202), a locking knob (207) is fixedly mounted inside the slide (206), and a bidirectional telescopic rod (208) is movably connected between the slides (206).

4. The light inspection device for display backlight module according to claim 3, characterized in that: One side of the bidirectional telescopic rod (208) is movably connected to the engaging block (210).

5. The light inspection device for display backlight module according to claim 1, characterized in that: The first L-shaped frame (201) is rotatably connected to the second L-shaped frame (202).

6. The light inspection device for display backlight module according to claim 3, characterized in that: The first L-shaped frame (201), the second L-shaped frame (202), and the spring (205) are all slidably connected to the locking rod (203), and the second L-shaped frame (202) is slidably connected to the hand-pushing block (204).

7. The light inspection device for display backlight module according to claim 4, characterized in that: The second L-shaped frame (202) is slidably connected to the slide (206), and the slide (206) and the engaging block (210) are both rotatably connected to the bidirectional telescopic rod (208).

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