A display screen flatness testing device

Abstract

This utility model discloses a display screen flatness testing device, relating to the field of display screen testing technology. It includes a base, a movable component on the top of the base, a testing component inside the movable component, and a display screen placed on the top of the base. The testing component includes a motor. The display screen flatness testing device adjusts the height of the connecting piece by rotating a knob on the outer wall of a lead screw, supported by a spring. This facilitates height adjustment of the horizontal probe. During testing, the motor drives a first bevel gear to rotate, which in turn drives a rotating rod via a second bevel gear. The rotating rod, in turn, drives a screw within a fourth bevel gear via a third bevel gear. The screw rotates within a screw groove in a sliding plate, causing the sliding plate to slide along the inner wall of the mounting housing. This moves the mounting housing, which rotates on a movable frame via a rotating shaft. The horizontal probe detects different positions on various areas of the display screen, improving the testing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of display screen flatness detection technology, specifically to a display screen flatness detection device. Background Technology

[0002] Display flatness inspection is a crucial step in ensuring the quality of display devices, especially in the production of high-end display screens such as OLED and LCD. Flatness directly affects display performance; unevenness, warping, or localized deformation on the screen surface can lead to image distortion, color deviation, and limited viewing angles, thus reducing user experience. The inspection process typically uses a non-contact method to quickly acquire three-dimensional topographic data of the screen surface. The system can accurately identify micron-level undulations and generate an intuitive flatness heatmap, marking out-of-tolerance areas. Furthermore, by combining automated robotic arms and intelligent algorithms, comprehensive inspection of large-size screens can be achieved, improving efficiency and reducing human error. This inspection is not only used for factory quality inspection but can also be applied to production process monitoring, helping manufacturers optimize process parameters and reduce defect rates.

[0003] Existing display flatness testing devices mostly adopt a fixed testing mode, that is, they perform single testing on specific areas of the screen, such as the center point, edge, or preset path. Single area testing may lead to missed defects due to insufficient local sampling, or ignore the global trend due to excessive focus on local areas. Therefore, we need a display flatness testing device. Utility Model Content

[0004] The purpose of this invention is to provide a display screen flatness detection device to solve the existing problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a display screen flatness detection device, comprising a base, a movable component disposed on the top of the base, a detection component disposed inside the movable component, and a display screen placed on the top of the base; the detection component comprises a motor, the output shaft of the motor being fixedly connected to a first bevel gear via a coupling, a second bevel gear being meshed with the outer wall of the first bevel gear, a rotating rod being fixedly connected inside the second bevel gear, a third bevel gear being fixedly connected to the bottom of the rotating rod, a fourth bevel gear being meshed with the outer wall of the third bevel gear, a screw being fixedly connected inside the fourth bevel gear, a sliding plate being threadedly connected to the outer wall of the screw, a threaded groove being formed inside the sliding plate, a mounting shell being slidably connected to the outer wall of the sliding plate, a rotating shaft being rotatably connected to the top of the mounting shell, a lead screw being fixedly connected to the top of the sliding plate, a knob being disposed on the outer wall of the lead screw, a connecting piece being disposed at the bottom of the knob, and a horizontal probe being fixedly connected to the bottom of the connecting piece.

[0006] Preferably, the motor forms a rotating structure through a first bevel gear and a second bevel gear, and the outer diameter of the first bevel gear matches the inner diameter of the second bevel gear, and the first bevel gear and the second bevel gear are arranged perpendicularly.

[0007] Preferably, the slide plate forms a threaded structure with the screw through a screw groove, and the inner diameter of the screw groove matches the outer diameter of the screw, and the inner wall of the screw groove fits against the outer wall of the screw.

[0008] Preferably, the skateboard forms an elastic structure with a spring and a connecting member, and the spring is disposed between the skateboard and the connecting member.

[0009] Preferably, the movable component includes a slide rail, a sliding sleeve is slidably connected to the outer wall of the slide rail, and a movable frame is fixedly connected to the top of the sliding sleeve.

[0010] Preferably, the movable frame forms a sliding structure with a sliding sleeve and a slide rail, and the inner diameter of the sliding sleeve matches the outer diameter of the slide rail, and the inner wall of the sliding sleeve fits against the outer wall of the slide rail.

[0011] Preferably, there are two sliding sleeves, and the two sliding sleeves are symmetrically arranged with the vertical line of the moving frame as the axis of symmetry.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this display screen flatness detection device,

[0013] (1) By rotating the knob, the knob rotates on the outer wall of the lead screw, so that the height of the connecting part can be adjusted under the support of the spring, which facilitates the height adjustment of the horizontal probe. In addition, during the test, the motor is started to drive the first bevel gear to rotate. The first bevel gear drives the rotating rod to rotate by the second bevel gear. The rotating rod drives the screw in the fourth bevel gear to rotate by the third bevel gear. The screw rotates in the screw groove in the slide plate. The slide plate slides along the inner wall of the mounting shell and moves the mounting shell at the same time. The mounting shell rotates on the moving frame by the rotating shaft. Thus, different positions in different areas on the horizontal probe display screen are detected, which improves the detection effect.

[0014] (2) By placing the display screen on the base and activating the slide rail, the moving frame can slide along the outer wall of the slide rail by relying on the bottom sliding sleeve, thereby moving the detection device and facilitating detection of different areas of the display screen. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0016] Figure 2 This is a schematic diagram of the base and display screen structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the detection component structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the slide plate and horizontal probe structure of this utility model.

[0019] In the diagram: 1. Base; 2. Moving component; 201. Slide rail; 202. Sliding sleeve; 203. Moving frame; 3. Detection component; 301. Motor; 302. First bevel gear; 303. Second bevel gear; 304. Rotating rod; 305. Third bevel gear; 306. Fourth bevel gear; 307. Screw; 308. Slide plate; 309. Screw groove; 310. Rotating shaft; 311. Mounting housing; 312. Lead screw; 313. Knob; 314. Connector; 315. Horizontal probe; 4. Display screen. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model embodiment provides a display screen flatness detection device, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the device includes a base 1, a movable component 2 on top of the base 1, a detection component 3 inside the movable component 2, and a display screen 4 on top of the base 1. The detection component 3 includes a motor 301, the output shaft of which is fixedly connected to a first bevel gear 302 via a coupling. A second bevel gear 303 is meshed with the outer wall of the first bevel gear 302. The motor 301 forms a rotating structure through the first bevel gear 302 and the second bevel gear 303. The outer diameter of the first bevel gear 302 matches the inner diameter of the second bevel gear 303, and the first bevel gear 302 and the second bevel gear 303 are arranged perpendicularly, which enhances the connection between the motor 301 and the first bevel gear 302, allowing the motor 301 to drive the first bevel gear 303. Gear 302 then drives the second bevel gear 303 to rotate. A rotating rod 304 is fixedly connected inside the second bevel gear 303. A third bevel gear 305 is fixedly connected to the bottom of the rotating rod 304. A fourth bevel gear 306 is meshed with the outer wall of the third bevel gear 305. A screw 307 is fixedly connected inside the fourth bevel gear 306. A sliding plate 308 is threadedly connected to the outer wall of the screw 307. A threaded groove 309 is formed inside the sliding plate 308. The sliding plate 308 and the screw 307 form a threaded structure through the threaded groove 309. The inner diameter of the threaded groove 309 matches the outer diameter of the screw 307, and the inner wall of the threaded groove 309 fits snugly against the outer wall of the screw 307, strengthening the connection between the sliding plate 308 and the screw 307, allowing the screw... 307 can rotate in the screw groove 309 within the slide plate 308. A mounting shell 311 is slidably connected to the outer wall of the slide plate 308. A rotating shaft 310 is rotatably connected to the top of the mounting shell 311. A lead screw 312 is fixedly connected to the top of the slide plate 308. A knob 313 is provided on the outer wall of the lead screw 312. A connector 314 is provided at the bottom of the knob 313. A horizontal probe 315 is fixedly connected to the bottom of the connector 314. The slide plate 308 and the connector 314 form an elastic structure through a spring. The spring is positioned between the slide plate 308 and the connector 314, strengthening the connection between them. This allows the connector 314 to be height-adjusted when the knob 313 rotates on the lead screw 312, supported by the spring. The knob 313 can be rotated on the outer wall of the lead screw 312 for adjustment, allowing the connector 314 to be adjusted in height under the support of the spring. This facilitates the adjustment of the height of the horizontal probe 315. Furthermore, during testing, the motor 301 can be started to drive the first bevel gear 302 to rotate. The first bevel gear 302, via the second bevel gear 303, drives the rotating rod 304 to rotate. The rotating rod 304, via the third bevel gear 305, drives the screw 307 within the fourth bevel gear 306 to rotate. The screw 307 rotates within the screw groove 309 of the slide plate 308, allowing the slide plate 308 to slide along the inner wall of the mounting housing 311, simultaneously actuating the mounting housing 311.This allows the mounting housing 311 to rotate on the movable frame 203 via the pivot 310, thereby enabling the horizontal probe 315 to detect different positions in different areas of the display screen, improving the detection effect.

[0022] In a further preferred embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the movable component 2 includes a slide rail 201, with a sliding sleeve 202 slidably connected to the outer wall of the slide rail 201. A movable frame 203 is fixedly connected to the top of the sliding sleeve 202. The movable frame 203 forms a sliding structure with the slide rail 201 through the sliding sleeve 202. The inner diameter of the sliding sleeve 202 matches the outer diameter of the slide rail 201, and the inner wall of the sliding sleeve 202 fits snugly against the outer wall of the slide rail 201, enhancing the connection between the movable frame 203 and the sliding sleeve 202. This allows the movable frame 203 to slide along the outer wall of the slide rail 201 using the sliding sleeve 202. There are two sliding sleeves 202, and the two sliding sleeves 202 are symmetrically arranged with the vertical line of the moving frame 203 as the axis of symmetry. This facilitates the arrangement of the two sliding sleeves 202, allowing the moving frame 203 to slide stably along the slide rail 201 by relying on the two sliding sleeves 202 at the bottom. By placing the display screen 4 on the base 1 and activating the slide rail 201, the moving frame 203 can slide along the outer wall of the slide rail 201 by relying on the sliding sleeves 202 at the bottom, thereby achieving the movement of the detection device and facilitating the detection of different areas of the display screen.

[0023] Working principle: In use, the display screen 4 can be placed on the base 1, and the sliding rail 201 can be activated, allowing the moving frame 203 to slide along the outer wall of the sliding rail 201 using the bottom sliding sleeve 202. This allows for movement of the detection device, facilitating detection of different areas of the display screen. Furthermore, during detection, the knob 313 can be rotated to adjust the height of the connecting piece 314 under spring support, allowing for height adjustment of the horizontal probe 315. Additionally, during detection, the motor 301 can be activated to drive the... When the first bevel gear 302 rotates, it drives the rotating rod 304 to rotate via the second bevel gear 303. The rotating rod 304 then drives the screw 307 inside the fourth bevel gear 306 to rotate via the third bevel gear 305. The screw 307 rotates within the screw groove 309 in the slide plate 308, allowing the slide plate 308 to slide along the inner wall of the mounting shell 311. Simultaneously, by moving the mounting shell 311, it rotates on the moving frame 203 via the rotating shaft 310. This allows the horizontal probe 315 to perform detection at different locations in different areas of the display screen, improving the detection effect.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A display screen flatness detection device, comprising a base (1), characterized in that: A movable component (2) is provided on the top of the base (1), a detection component (3) is provided inside the movable component (2), and a display screen (4) is placed on the top of the base (1). The detection component (3) includes a motor (301). The output shaft of the motor (301) is fixedly connected to a first bevel gear (302) via a coupling. A second bevel gear (303) is meshed with the outer wall of the first bevel gear (302). A rotating rod (304) is fixedly connected inside the second bevel gear (303). A third bevel gear (305) is fixedly connected to the bottom of the rotating rod (304). A fourth bevel gear (306) is meshed with the outer wall of the third bevel gear (305). A screw (307) is fixedly connected inside the fourth bevel gear (306). The outer wall of the screw (307) is threadedly connected to a slide plate (308). The slide plate (308) has a threaded groove (309) inside. The outer wall of the slide plate (308) is slidably connected to a mounting shell (311). The top of the mounting shell (311) is rotatably connected to a rotating shaft (310). The top of the slide plate (308) is fixedly connected to a lead screw (312). The outer wall of the lead screw (312) is provided with a knob (313). The bottom of the knob (313) is provided with a connector (314). The bottom of the connector (314) is fixedly connected to a horizontal probe (315).

2. The display screen flatness detection device according to claim 1, characterized in that: The motor (301) forms a rotating structure through a first bevel gear (302) and a second bevel gear (303), and the outer diameter of the first bevel gear (302) matches the inner diameter of the second bevel gear (303), and the first bevel gear (302) and the second bevel gear (303) are arranged perpendicularly to each other.

3. The display screen flatness detection device according to claim 1, characterized in that: The slide plate (308) forms a threaded structure with the screw (307) through the screw groove (309), and the inner diameter of the screw groove (309) matches the outer diameter of the screw (307), and the inner wall of the screw groove (309) is fitted to the outer wall of the screw (307).

4. The display screen flatness detection device according to claim 1, characterized in that: The slide plate (308) forms an elastic structure with the spring and the connector (314), and the spring is disposed between the slide plate (308) and the connector (314).

5. The display screen flatness detection device according to claim 1, characterized in that: The moving component (2) includes a slide rail (201), a slide sleeve (202) is slidably connected to the outer wall of the slide rail (201), and a moving frame (203) is fixedly connected to the top of the slide sleeve (202).

6. The display screen flatness detection device according to claim 5, characterized in that: The movable frame (203) forms a sliding structure with the slide rail (201) through the slide sleeve (202), and the inner diameter of the slide sleeve (202) matches the outer diameter of the slide rail (201), and the inner wall of the slide sleeve (202) is fitted to the outer wall of the slide rail (201).

7. The display screen flatness detection device according to claim 5, characterized in that: The number of the sliding sleeves (202) is two, and the two sliding sleeves (202) are symmetrically arranged with the vertical line of the moving frame (203) as the axis of symmetry.

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