CN210294729U

CN210294729U - Novel LCD screen circuit detection device

Info

Publication number: CN210294729U
Application number: CN201920995780.6U
Authority: CN
Inventors: 王晓丹; 梁志达; 王士奇; 魏慧琳; 林中龙; 洪雅婧; 张汉建
Original assignee: Xiamen G First Oeic Co ltd
Current assignee: Xiamen G First Oeic Co ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-04-10
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses a novel LCD screen circuit detection device, it includes drive assembly, first mount pad, formation of image subassembly and pointolite, drive assembly includes driving piece and mounting panel, the driving piece is used for driving the mounting panel and carries out elevating movement, first mount pad sets firmly on the mounting panel, the formation of image subassembly includes TDI linear array camera and DIC camera lens, TDI linear array camera locates on the first mount pad, a line image is shielded to the shooting liquid crystal, the DIC camera lens links to each other with TDI linear array camera, the pointolite is located on the DIC camera lens, and form coaxial light source with the DIC camera lens, the pointolite is used for shining the LCD screen circuit and cooperatees with the DIC camera lens. The utility model discloses a cooperation of pointolite and DIC camera lens is used, makes the LCD screen circuit image that TDI linear array camera shot clearer, can detect the slight unevenness that exists on the road, has ensured the accuracy of testing result.

Description

Novel LCD screen circuit detection device

Technical Field

The utility model relates to a check out test set technical field, concretely relates to novel LCD screen circuit detects device.

Background

The liquid crystal screen has the advantages of small volume, low power consumption, low radiation and the like, and is widely applied to electronic equipment such as computers, mobile phones, liquid crystal televisions and the like.

At present, the circuit defect of the liquid crystal screen is generally detected by using machine vision, the machine vision comprises an image acquisition unit and an image processing unit, the image acquisition unit acquires an image of the liquid crystal screen to be detected, then the image processing unit processes the image, and finally the defect condition of the circuit of the liquid crystal screen is obtained.

For example, the invention patent (application number is CN201611191302.7) of the present applicant discloses an image acquisition system for detecting edge lines of a liquid crystal display, which can automatically obtain the warping condition of the liquid crystal display, ensure the definition of a shot image, and further ensure the accuracy of a detection result. However, in the actual production process, the applicant finds that, for slight unevenness existing on the circuit, the original detection system is difficult to detect the slight defects during detection, and the detection accuracy needs to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel LCD screen circuit detection device, it can detect the slight unevenness that exists on the road, ensures the accuracy of testing result.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel LCD screen circuit detection device, includes drive assembly, first mount pad, formation of image subassembly and pointolite, drive assembly includes driving piece and mounting panel, the driving piece is used for driving the mounting panel carries out elevating movement, first mount pad sets firmly on the mounting panel, the formation of image subassembly includes TDI linear array camera and DIC camera lens, TDI linear array camera locates on the first mount pad for shoot LCD screen circuit image, the DIC camera lens links to each other with TDI linear array camera, the pointolite is located on the DIC camera lens, and with the DIC camera lens forms coaxial light source, the pointolite be used for shine the LCD screen circuit and with the DIC camera lens cooperatees.

Preferably, the TDI linear array camera adopts a 4K TDI linear array camera, the model of the TDI linear array camera is dalsa Piranha HS-80-04K40, and the DIC lens adopts a 10X fixed-magnification lens, the model of the DIC lens is XF-VM 10-1C.

Preferably, first mount pad includes riser, diaphragm and reinforcing plate, the riser set firmly in the upper end of mounting panel, the diaphragm sets firmly in the top of riser, TDI linear array camera installs on the diaphragm, the reinforcing plate is located the crossing department of riser and diaphragm.

Preferably, the lower extreme of mounting panel is equipped with the second mount pad, the second mount pad can be followed the vertical direction of mounting panel carries out position control, be equipped with focusing device in the second mount pad, just focusing device is located the below of DIC camera lens.

Preferably, the second mounting seat comprises a front plate, a rear plate and a pair of side plates arranged between the front plate and the rear plate, the front plate, the rear plate and the side plates are connected in a surrounding manner to form the second mounting seat with a frame-shaped structure, the focusing device is fixedly arranged on the front plate, the lower end of the mounting plate is contracted to form a concave part, the concave part is provided with a long circular hole, the back surface of the rear plate is provided with a groove, the groove is matched with the concave part, and the rear plate is fixed on the concave part through a screw penetrating through the long circular hole.

Preferably, the driving part comprises a base, a motor, a screw rod and a sliding block, the motor is arranged at the top of the base, the screw rod is rotatably arranged on the base and is connected with a crankshaft of the motor, and the sliding block is matched with the screw rod.

Preferably, the back of mounting panel has set firmly the connecting block, the connecting block is fixed mutually with the slider, the front side of base is equipped with the deflector, be equipped with the guide way on the connecting block, so that when the mounting panel goes up and down, the connecting block removes along the deflector.

After the technical scheme is adopted, compared with the background art, the utility model, have following advantage:

the utility model discloses a cooperation of pointolite and DIC camera lens is used, makes the LCD screen circuit image that TDI linear array camera shot clearer, can detect the slight unevenness that exists on the road, has ensured the accuracy of testing result.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a rear view of the present invention;

FIG. 4 is a schematic structural diagram of a driving assembly;

fig. 5a and 5b are comparison diagrams of the circuit effect of the present invention and the prior art.

Description of reference numerals:

110. the driving device comprises a driving piece, a base 111, a motor 112, a screw rod 113, a sliding block 114, a guide plate 115, a mounting plate 120, a connecting block 121, a guide groove 122, a concave part 123 and a long round hole 124;

210. vertical plates, 220,

transverse plates

220, 230, reinforcing plates;

TDI linear array camera, 320 DIC camera lens;

400. a point light source;

510. front plate, 520 rear plate, 521 groove, 530 side plate;

600. a focusing device.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or position relationship shown in the drawings, and are only for convenience of description and simplification of the present invention, but do not indicate or imply that the device or element of the present invention must have a specific orientation, and thus, should not be construed as limiting the present invention.

Examples

Referring to fig. 1, the utility model discloses a novel LCD screen circuit detection device, including drive assembly, first mount pad, formation of image subassembly and pointolite 400.

As shown in fig. 1 and 4, the driving assembly includes a driving member 110 and a mounting plate 120, and the driving member 110 is used for driving the mounting plate 120 to perform an elevating motion. The driving member 110 includes a base 111, a motor 112, a screw 113 and a slider 114, the motor 112 is disposed on the top of the base 111, the screw 113 is rotatably disposed on the base 111 and connected to a shaft of the motor 112, and the slider 114 is engaged with the screw 113. The back of the mounting plate 120 is fixedly provided with a connecting block 121, the connecting block 121 is fixed with the slider 114, the front side of the base 111 is provided with a guide plate 115, and the connecting block 121 is provided with a guide groove 122, so that when the mounting plate 120 is lifted, the connecting block 121 moves along the guide plate 115.

With reference to fig. 1 to 3, the first mounting seat is fixed on the mounting plate 120, the first mounting seat includes a vertical plate 210, a horizontal plate 220 and a reinforcing plate 230, the vertical plate 210 is fixed on the upper end of the mounting plate 120, the horizontal plate 220 is fixed on the top end of the vertical plate 210, and the reinforcing plate 230 is disposed at the intersection of the vertical plate 210 and the horizontal plate 220.

The imaging assembly comprises a TDI linear array camera 310 and a DIC lens 320, wherein the TDI linear array camera 310 is arranged on the transverse plate 220 and used for shooting a liquid crystal screen line image, the DIC lens 320 is connected with the TDI linear array camera 310, and in the embodiment, the TDI linear array camera 310 is a 4KTDI linear array camera which is of a dalsa Piranha HS-80-04K40 type. The DIC lens 320 adopts a 10X fixed-power lens, the model is XF-VM10-1C, the resolution of the lens is 0.7um/pixel, the FOV is 2.8mm X2.8 mm, and the detection speed is 60mm/s, so that the imaging assembly has the characteristics of high detection speed, high efficiency and the like.

The point light source 400 is disposed on the DIC lens 320 and forms a coaxial light source with the DIC lens 320, and the point light source 400 is used for illuminating the liquid crystal panel circuit and is matched with the DIC lens 320.

The lower end of the mounting plate 120 is provided with a second mounting seat, the position of the second mounting seat can be adjusted along the vertical direction of the mounting plate 120, a focusing device 600 is arranged in the second mounting seat, and the focusing device 600 is located below the DIC lens 320. Since the depth of field of the 10X zoom lens is only 3.5um, a focusing device 600 needs to be equipped to realize the automatic focusing of the TDI line camera 310, and the second mounting base can be finely adjusted to a proper position before image acquisition.

The second mounting seat comprises a front plate 510, a rear plate 520 and a pair of side plates 530 arranged between the front plate 510 and the rear plate 520, the front plate 510, the rear plate 520 and the side plates 530 are surrounded to form the second mounting seat in a frame structure, the focusing device 600 is fixedly arranged on the front plate 510, the lower end of the mounting plate 120 is contracted to form a concave part 123, the concave part 123 is provided with an oblong hole 124, the back surface of the rear plate 520 is provided with a groove 521, the groove 521 is matched with the concave part 123, and the rear plate 520 is fixed on the concave part 123 through a screw passing through the oblong hole 124.

Fig. 5a and 5b are the utility model discloses with the contrast picture of prior art detection circuitry effect, can see out by the picture, the utility model discloses can detect the slight unevenness that exists on the line, the result of detection is more accurate.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a novel LCD screen circuit detection device which characterized in that: the drive assembly comprises a drive component, a first mounting seat, an imaging component and a point light source, the drive component comprises a drive component and a mounting plate, the drive component is used for driving the mounting plate to move up and down, the first mounting seat is fixedly arranged on the mounting plate, the imaging component comprises a TDI linear array camera and a DIC lens, the TDI linear array camera is arranged on the first mounting seat and is used for shooting images of a liquid crystal screen circuit, the DIC lens is connected with the TDI linear array camera, the point light source is arranged on the DIC lens and forms a coaxial light source with the DIC lens, and the point light source is used for irradiating the liquid crystal screen circuit and is matched with the DIC lens.

2. The novel liquid crystal screen circuit detection device according to claim 1, wherein: the TDI linear array camera adopts a 4K TDI linear array camera, the model is dalsa Piranha HS-80-04K40, the DIC lens adopts a 10X zoom lens, and the model is XF-VM 10-1C.

3. A novel lcd panel line inspection device as claimed in claim 1 or 2, wherein: the first mounting base comprises a vertical plate, a transverse plate and a reinforcing plate, the vertical plate is fixedly arranged at the upper end of the mounting plate, the transverse plate is fixedly arranged at the top end of the vertical plate, the TDI linear array camera is arranged on the transverse plate, and the reinforcing plate is arranged at the intersection of the vertical plate and the transverse plate.

4. A novel lcd panel line inspection device as claimed in claim 3, wherein: the lower extreme of mounting panel is equipped with the second mount pad, the second mount pad can be along the vertical direction of mounting panel carries out position control, be equipped with focusing device in the second mount pad, just focusing device is located the below of DIC camera lens.

5. The novel LCD screen circuit testing device as claimed in claim 4, wherein: the second mounting seat comprises a front plate, a rear plate and a pair of side plates arranged between the front plate and the rear plate, the front plate, the rear plate and the side plates are connected into the second mounting seat in a frame-shaped structure in a surrounding mode, the focusing device is fixedly arranged on the front plate, the lower end of the mounting plate is contracted to form a concave portion, a long circular hole is formed in the concave portion, a groove is formed in the back face of the rear plate, the groove is matched with the concave portion, and the rear plate is fixed on the concave portion through screws penetrating through the long circular hole.

6. The novel LCD screen circuit testing device as claimed in claim 5, wherein: the driving piece comprises a base, a motor, a screw rod and a sliding block, the motor is arranged at the top of the base, the screw rod is rotatably arranged on the base and is connected with a crankshaft of the motor, and the sliding block is matched with the screw rod.

7. The novel LCD screen circuit testing device as claimed in claim 6, wherein: the back of mounting panel has set firmly the connecting block, the connecting block is fixed mutually with the slider, the front side of base is equipped with the deflector, be equipped with the guide way on the connecting block, so that when the mounting panel goes up and down, the connecting block removes along the deflector.