CN210375626U

CN210375626U - Curved screen body detection device

Info

Publication number: CN210375626U
Application number: CN201921637691.0U
Authority: CN
Inventors: 魏荣荣
Original assignee: Yungu Guan Technology Co Ltd
Current assignee: Yungu Guan Technology Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-04-21
Anticipated expiration: 2029-09-27

Abstract

The application relates to a curved screen body detection device. The bent screen body detection device comprises a rail, a support frame, a detection head, a first driving device and a second driving device. One end of the supporting frame is arranged on the track in a sliding mode. The detecting head is movably arranged at one end of the support frame far away from the support frame. The first driving device is used for driving the detecting head to rotate through the supporting frame. The second driving device is arranged on the support frame. The second driving device is used for driving the support frame to move on the track. The first driving device can drive the detecting head to rotate by different angles through the supporting frame, so that the lens of the detecting head is opposite to sampling points of the surfaces of the curved screen body with different curvatures. The second driving device can drive the support frame to move in the extending direction of the track. Therefore, the second driving device can enable the probe head to correspond to sampling points at different positions on the curved screen body. Therefore, the curved screen body monitoring device is convenient for positioning different sampling points on the surface of the curved screen body, and the efficiency is greatly improved.

Description

Curved screen body detection device

Technical Field

The application relates to the field of detection, in particular to a bent screen body detection device.

Background

The performance test of the screen body before leaving the factory is a key process for ensuring the quality of the screen body, and the traditional test equipment mainly tests the flat panel display screen so as to obtain key optical parameters of the display screen. However, the traditional test equipment has high test difficulty on the bent screen and measurement is not accurate enough.

SUMMERY OF THE UTILITY MODEL

Therefore, the bending screen body detection device is needed to be provided aiming at the problems that the traditional test equipment has high test difficulty and measurement is not accurate enough.

A curved screen detection apparatus comprising:

a track;

one end of the support frame is arranged on the track in a sliding mode;

the detecting head is movably arranged at one end of the supporting frame far away from the track;

the first driving device is arranged on the supporting frame and used for driving the detecting head to rotate through the supporting frame;

and the second driving device is arranged on the supporting frame and used for driving the supporting frame to move on the track.

In one embodiment, the support stand comprises:

one end of the connecting frame is arranged on the track in a sliding mode;

the fixed frame rotates set up in the link is kept away from orbital one end, the detecting head is fixed set up in fixed frame, first drive arrangement passes through the drive fixed frame is rotatory to be driven the detecting head is rotatory.

In one embodiment, the support frame further comprises a rotating shaft, the connecting frame is provided with a through hole, the rotating shaft is rotatably arranged in the through hole, and the fixing frame is arranged at one end of the rotating shaft.

In one embodiment, the support frame further comprises a bearing, an outer ring of the bearing is attached to the inner wall of the through hole, and the rotating shaft and an inner ring of the rotating shaft are coaxially arranged.

In one embodiment, the support frame further comprises a horizontal frame, the track comprises two sliding rails arranged in parallel, and two ends of the horizontal frame are respectively arranged on the two sliding rails in a sliding manner.

In one embodiment, two ends of the horizontal frame are respectively provided with a clamping portion, and the clamping portions are matched with the slide rails to enable the horizontal frame to slide along the slide rails.

In one embodiment, the engaging portion includes two clamping plates disposed at an interval on the horizontal frame, and the slide rail is clamped between the two clamping plates.

In one embodiment, the second driving device is disposed at one end of the horizontal frame, and the second driving device drives the horizontal frame to slide on the slide rail.

In one embodiment, the fixing frame is a cubic structure, and the detecting head and the first driving device are respectively arranged on two different surfaces of the cubic structure.

In one embodiment, the bending screen detection device is characterized by further comprising a detection table for placing the bending screen to be detected.

The embodiment of the application provides more crooked screen body detection device, first drive arrangement can pass through the support frame drives the rotatory different angles of detecting head, so that the camera lens of detecting head with the sampling point on the surface of the different curvatures of crooked screen body is relative. The second driving device can drive the support frame to move in the extending direction of the track. Therefore, the second driving device can enable the detecting head to correspond to sampling points at different positions on the curved screen body. Therefore, the curved screen body monitoring device is convenient for positioning different sampling points on the surface of the curved screen body, the measurement is accurate, and the efficiency is greatly improved.

Drawings

FIG. 1 is a cross-sectional view of a curved screen inspection device according to an embodiment of the present disclosure;

fig. 2 is a side view of a support stand provided in an embodiment of the present application.

Description of reference numerals:

curved screen detection device 10

Track 100

Slide rail 110

Supporting rack 200

Connecting frame 210

Fixing frame 220

Horizontal shelf 230

Rotating shaft 240

Through hole 212

Bearing 214

Engaging part 250

Clamping plate 252

Probe 300

First driving device 400

Second driving device 500

Detection table 600

Curved screen 700

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the embodiments disclosed below.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the production process of the screen body, the problems of color deviation and the like of the screen body are usually corrected by electrifying. The method comprises the steps of collecting images of different positions of a screen body under different patterns through a detection head, analyzing the images, and correcting chromatic aberration and color cast of the screen body through improvement of an algorithm or a circuit. The quality of the detection head for acquiring the screen body image influences the accuracy of the screen body chromatic aberration color cast correction. Due to the fact that the curved screen body is of the radian structure, the angle of the detecting head relative to the curved screen body needs to be adjusted continuously and manually when the detecting head detects different positions of the curved screen body, and therefore image acquisition efficiency is greatly reduced.

Referring to fig. 1, an embodiment of the present application provides a curved screen detecting device 10. The curved screen body detection device 10 comprises a rail 100, a support frame 200, a probe head 300, a first driving device 400 and a second driving device 500. One end of the supporting frame 200 is slidably disposed on the rail 100. The probing tip 300 is movably disposed at an end of the supporting frame 200 away from the rail 100. The first driving device 400 is disposed on the supporting frame 200. The first driving device 400 is used for driving the probing tip 300 to rotate through the supporting frame 200. The second driving device 500 is disposed on the supporting frame 200. The second driving device 500 is used for driving the supporting frame 200 to move on the rail 100.

In this embodiment, the supporting frame 200 is used for supporting the probing tip 300. The supporting bracket 200 can move along the length direction of the rail 100. The supporting frame 200 may have a plate-like structure, a column-like structure, or the like. In one embodiment, the supporting frame 200 may have a plate structure with a hollow pattern, so as to reduce the weight of the supporting frame 200. The supporting frame 200 may be made of wood, metal, polyester, etc. The detector head 300 may be a high precision camera. The probe head 300 may rotate relative to the support frame 200. The support stand 200 may be vertically disposed. The probing tip 300 and the rail 100 may be disposed at two ends of the supporting frame 200, respectively. After the first driving device 400 is turned on, the components in the supporting frame 200 may be driven to rotate, and the detecting head 300 may be driven to rotate by the components in the supporting frame 200. In one embodiment, the first driving device 400 may also directly drive the detecting head 300 to rotate. The second driving device 500 may carry the probing head 300 along the length direction of the rail 100 by the supporting frame 200.

It is understood that the first driving device 400 and the second driving device 500 may be motors. The motor can be a micro motor, a stepping motor and the like. When the first driving device 400 is a stepping motor, it can be converted into an angular displacement or a linear displacement by an electric pulse signal. When a stepping driver in the stepping motor receives a pulse signal, the stepping driver drives the stepping motor to rotate by a fixed angle according to a set direction. Its rotation is performed step by step at a fixed angle. The angular displacement can be controlled by controlling the number of pulses, so that the aim of accurate positioning is fulfilled. Meanwhile, the rotating speed and the rotating acceleration of the motor can be controlled by controlling the pulse frequency, so that the aim of speed regulation is fulfilled. Therefore, the rotational direction of the probing tip 300 can be precisely controlled by the first driving means 400. Further, the first driving device 400 may control the probing tip 300 to rotate in a vertical direction, i.e., the angle of the probing tip 300 may be inclined with respect to a horizontal plane.

When the detection is started, the detecting head 300 is located above the curved screen body 700, so that a connection line of two curved ends of the curved screen body 700 is perpendicular to the extending direction of the rail 100. The lens of the probe 300 is adjusted to be vertical to the surface of the curved screen body 700 by the first driving device 400. The surface of the curved screen body 700 may be preset with sampling points arranged in a matrix. After the image of one sampling point is collected, the second driving device 500 is controlled to drive the detecting head 300 to move along the track 100 through the supporting frame 200. After the second sample point, the probe head 300 is stopped. In the moving direction of the supporting frame 200, the bending curvature of the bending screen 700 is not changed, so that the next sampling point can be tested without adjusting the rotation angle of the probe 300. After the image acquisition of the same row of sampling points in the strip-shaped region with the same curvature on the surface of the curved screen body 700 is completed, the probe 300 can be rotated by the first driving device 400, so that the probe 300 performs the sampling test corresponding to the next row of sampling points.

The embodiment of the present application provides more curved screen body detection devices 10, and the first driving device 400 can drive the probe 300 to rotate by different angles through the supporting frame 200, so that the lens of the probe 300 is opposite to the sampling points of the surfaces of the curved screen body 700 with different curved curvatures. The second driving device 500 may drive the supporting frame 200 to move in the extending direction of the rail 100. Therefore, the second driving device 500 can make the probing head 300 correspond to sampling points at different positions on the curved screen body 700. Therefore, the curved screen body monitoring device 10 is convenient for positioning different sampling points on the surface of the curved screen body 700, the measurement is accurate, and the efficiency is greatly improved.

In one embodiment, the supporting stand 200 includes a connecting frame 210 and a fixing frame 220. One end of the connecting frame 210 is slidably disposed on the rail 100. The fixing frame 220 is rotatably disposed at an end of the connecting frame 210 far from the rail 100. The probing tip 300 is fixedly disposed on the fixing frame 220. The first driving device 400 is disposed on the fixing frame 220. The first driving device 400 drives the detecting head 300 to rotate by driving the fixing frame 220. The connection frame 210 may have a plate-shaped structure or a column-shaped structure. The fixing frame 220 may be rotatably installed at the connecting frame 210 by a rotating shaft 240 or the like. The connecting frame 210 can drive the fixing frame to slide in the extending direction of the rail 100. The fixing frame 220 may be provided with a mounting hole. The probing tip 300 may be mounted to the mounting hole. After the first driving device 400 is started, the fixing frame 220 can be driven to rotate relative to the connecting frame 210. The fixing frame 220 rotates to drive the probe 300 to rotate.

In one embodiment, the support stand 200 includes a rotation shaft 240. The connection frame 210 is provided with a through hole 212. The rotating shaft 240 is rotatably disposed in the through hole 212. The fixing frame 220 is disposed at one end of the rotating shaft 240. The rotation shaft 240 may be clearance-fitted with the through hole 212. The rotation shaft 240 can be flexibly rotated with respect to the through hole 212. The rotation shaft 240 may penetrate the through hole 212. The fixing frame 220 may be fixedly disposed at one end of the rotation shaft 240. Therefore, when the first driving device 400 drives the fixing frame 220 to rotate, the rotating shaft 240 also rotates in the through hole 212. The resistance to the rotation of the fixing frame 220 is reduced by the rotation shaft 240.

In one embodiment, the support stand 200 further comprises a bearing 214. The outer ring of the bearing 214 is attached to the inner wall of the through hole 212. The rotating shaft 240 is coaxially disposed with an inner ring of the rotating shaft 240. The bearing 214 is fixed to the through hole 212 by an outer ring. The outer race and the inner race of the bearing 214 are free to rotate relative to each other. The rotation shaft 240 can freely rotate with respect to the through hole 212, reducing the load of the first driving device 400.

In one embodiment, the support stand 200 further comprises a horizontal stand 230. The rail 100 includes two sliding rails 110 arranged in parallel. Two ends of the horizontal frame 230 are slidably disposed on the two slide rails 110, respectively. The horizontal shelf 230 may have a rod-like or plate-like structure. The horizontal frame 230 may be perpendicular to the connection frame 210. The cross section of the sliding rail 110 may be a rectangular structure or an i-beam structure. The two ends of the horizontal frame 230 can be slidably or rollably disposed on the sliding rail 110. When the horizontal frame 230 moves on the surface of the slide rail 110, the horizontal frame 230 drives the connecting frame 210 to move in the extending direction of the slide rail 110.

In one embodiment, the two ends of the horizontal frame 230 are respectively provided with a clamping portion 250. The engaging portion 250 cooperates with the slide rail 110 to enable the horizontal frame 230 to slide along the slide rail 110. The engaging portion 250 can limit the horizontal frame 230 and the sliding rail 110 from moving in a direction perpendicular to the sliding rail 110. That is, the engaging portion 250 can restrain the horizontal frame 230 to the slide rail 110, so as to prevent the horizontal frame 230 from being separated from the slide rail 110.

In one embodiment, the engaging portion 250 includes two clamping plates 252 spaced apart from each other and disposed on the horizontal frame 230. One of the slide rails 110 is sandwiched between two of the clamping plates 252. The two clamping plates 252 and the horizontal shelf 230 may surround to form a groove. The slide rail 110 may be fitted into the groove. The horizontal shelf 230 is not easily detached from the slide rail 110. In one embodiment, the two clamping plates 252 may be arranged in parallel. It can be understood that the contact portions of the two clamping plates 252 with the sliding rail 110 are smooth surfaces, so that the resistance of the horizontal frame 230 during sliding on the surface of the sliding rail 110 can be reduced.

In one embodiment, the second driving device 500 is disposed at one end of the horizontal frame 230. The second driving device 500 drives the horizontal frame 230 to slide on the sliding rail 110, that is, the second driving device 500 can move along with the horizontal frame 230. The second driving device 500 is disposed at one end of the horizontal frame 230 to save space and facilitate carrying. In one embodiment, the number of the second driving devices 500 may be two. One second driving device 500 may be respectively disposed at both ends of the horizontal frame 230.

In one embodiment, the fixing frame 220 has a cubic structure. The probing head 300 and the first driving device 400 are respectively disposed on two different surfaces of the cubic structure. So that the probing tip 300 and the first driving device 400 do not interfere with each other. The fixing frame 220 of the cubic structure has a simple structure, is convenient to manufacture, and can reduce the cost of products.

In one embodiment, the curved screen body inspection device 10 further comprises an inspection station 600. The detection table 600 is used for placing a bent screen body 700 to be detected. The surface of the inspection station 600 may be parallel to the slide rail 110. The curved screen 700 may be placed on the surface of the inspection station 600 between the probe head 300 and the monitoring station.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A curved screen detection apparatus, comprising:

a rail (100);

the supporting frame (200), one end of the supporting frame (200) is arranged on the track (100) in a sliding mode;

the detecting head (300) is movably arranged at one end of the supporting frame (200) far away from the track (100);

the first driving device (400) is arranged on the support frame (200) and used for driving the detecting head (300) to rotate through the support frame (200);

the second driving device (500) is arranged on the supporting frame (200) and used for driving the supporting frame (200) to move on the track (100).

2. A bent screen detection device according to claim 1, wherein the support frame (200) comprises:

the connecting frame (210), one end of the connecting frame (210) is arranged on the track (100) in a sliding mode;

fixed frame (220), rotate set up in link (210) are kept away from the one end of track (100), detecting head (300) are fixed set up in fixed frame (220), first drive arrangement (400) are through the drive fixed frame (220) rotation drive detecting head (300) are rotatory.

3. The curved screen body detection device according to claim 2, wherein the support frame (200) further comprises a rotation shaft (240), the connection frame (210) is provided with a through hole (212), the rotation shaft (240) is rotatably disposed in the through hole (212), and the fixing frame (220) is disposed at one end of the rotation shaft (240).

4. The curved screen detection device of claim 3, wherein the support frame (200) further comprises a bearing (214), an outer ring of the bearing (214) is attached to an inner wall of the through hole (212), and the rotating shaft (240) is coaxially arranged with an inner ring of the rotating shaft (240).

5. The curved screen body detection device according to claim 2, wherein the supporting frame (200) further comprises a horizontal frame (230), the rail (100) comprises two sliding rails (110) arranged in parallel, and two ends of the horizontal frame (230) are respectively slidably arranged on the two sliding rails (110).

6. The curved screen body detection device according to claim 5, wherein two ends of the horizontal frame (230) are respectively provided with a clamping portion (250), and the clamping portions (250) are matched with the slide rails (110) to enable the horizontal frame (230) to slide along the slide rails (110).

7. The curved screen detecting device according to claim 6, wherein the engaging portion (250) comprises two clamping plates (252) spaced apart from each other on the horizontal frame (230), and one of the slide rails (110) is clamped between the two clamping plates (252).

8. The curved screen detecting device according to claim 5, wherein the second driving device (500) is disposed at one end of the horizontal frame (230), and the second driving device (500) drives the horizontal frame (230) to slide on the sliding rail (110).

9. The curved screen detecting device according to claim 2, wherein the fixing frame (220) is a cubic structure, and the detecting head (300) and the first driving device (400) are respectively disposed on two different surfaces of the cubic structure.

10. A curved screen detection apparatus according to any of claims 1 to 9, further comprising a detection station (600) for placing a curved screen (700) to be detected.