CN217505158U - Optical detection device of display panel and conveying device thereof - Google Patents
Optical detection device of display panel and conveying device thereof Download PDFInfo
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- CN217505158U CN217505158U CN202221277840.9U CN202221277840U CN217505158U CN 217505158 U CN217505158 U CN 217505158U CN 202221277840 U CN202221277840 U CN 202221277840U CN 217505158 U CN217505158 U CN 217505158U
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- 238000001514 detection method Methods 0.000 title claims abstract description 152
- 230000003287 optical effect Effects 0.000 title claims abstract description 49
- 238000007689 inspection Methods 0.000 claims description 21
- 239000000428 dust Substances 0.000 abstract description 13
- 239000004973 liquid crystal related substance Substances 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
The utility model provides a display panel's optical detection device and conveyer thereof, optical detection device include first determine module, and first determine module includes first camera, second camera and at least one light source. The display panel is positioned between the first camera and the second camera and penetrates through the first detection assembly along the first direction; the at least one light source is arranged right opposite to a first side face, parallel to the first direction, of the display panel, and emitted light rays are emitted to the front face and the back face of the display panel respectively. The part of the display panel, which is irradiated by the light source in the first detection assembly, is a first detection area, and the lens of the first camera and the lens of the second camera face the first detection area respectively. The utility model discloses a light source among the first determine module illuminates display panel's front and the back simultaneously to utilize first camera and second camera to detect display panel's front and back respectively, thereby need not upset display panel and can carry out the dust simultaneously to display panel's front and back and detect.
Description
Technical Field
The utility model relates to a show technical field, concretely relates to display panel's optical detection device and conveyer thereof.
Background
In the production process of the liquid crystal display panel, the product needs to be subjected to dust detection and flaw detection before being delivered from a factory. The detection precision of the liquid crystal display panel directly affects the performance of the product, and the high-precision automatic detection cannot be completely realized at present.
At present, only equipment capable of detecting dust on the front side of the liquid crystal display panel is available in the market, and the dust cannot be detected on the back side of the liquid crystal display panel due to the limitation of a mechanical structure, so that the liquid crystal display panel with the larger area is the same. The liquid crystal display panel is respectively a polarizing plate, a glass substrate, a color filter, an alignment film, a liquid crystal material, an alignment film, a glass substrate and a polarizing plate from top to bottom, the whole structure is not symmetrical about a liquid crystal layer, if a common light source is used for direct front irradiation, all layers of the whole liquid crystal display panel cannot be illuminated, or a plurality of flaws are covered due to over-bright light source, so that the flaws in the liquid crystal display panel cannot be fully detected. In the existing method, defects are seen in a backlight mode, but detection results are inconsistent due to inconsistency of structural layers on two sides of a liquid crystal layer of a liquid crystal display panel, so that detection accuracy is low easily, and automation cannot be completely realized. In addition, the problems of dust detection and flaw detection in the market are solved by more hardware, the solving cost is high, and the production line speed cannot be guaranteed.
Therefore, it is necessary to provide a technical solution to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a display panel's optical detection device and conveyer thereof can solve current check out test set and examine time measuring to liquid crystal display panel, detects the technical problem that the precision is low and the cost is higher.
In order to solve the above problem, the utility model provides a technical scheme as follows:
the embodiment of the utility model provides an optical detection device of a display panel, including a first detection component, the first detection component includes a first camera and a second camera that are arranged oppositely and at least one light source;
the display panel is positioned between the first camera and the second camera, and the display panel passes through the first detection component along a first direction;
the at least one light source is arranged right opposite to a first side face, parallel to the first direction, of the display panel and used for emitting light beams in a second direction, light rays in the light beams are respectively emitted to the front face and the back face of the display panel, and the second direction is perpendicular to the first direction and parallel to the display panel;
the part of the display panel, which is irradiated by the light source in the first detection assembly, is a first detection area, and the lens of the first camera and the lens of the second camera face the first detection area respectively.
Optionally, in some embodiments of the present invention, the display panel includes two oppositely disposed first side surfaces, and the first detection area extends from one first side surface of the display panel to the opposite first side surface of the display panel along the second direction;
the first camera faces the front face of the display panel and is used for shooting a front face image of the display panel corresponding to the first detection area; the second camera faces the back of the display panel and is used for shooting a back image of the display panel corresponding to the first detection area.
Optionally, in some embodiments of the present invention, the display panel divides the light beam emitted by the light source in the first detection assembly into a first arc-shaped light beam located on one side of the front surface of the display panel and a second arc-shaped light beam located on one side of the back surface of the display panel.
Optionally, in some embodiments of the present invention, the first arc-shaped light beam and the second arc-shaped light beam are disposed with the display panel as an axis symmetry.
Optionally, in some embodiments of the present invention, the first detecting component includes a first light source and a second light source which are oppositely disposed, and the first light source and the second light source are respectively disposed opposite to two first side surfaces of the display panel;
the first light source emits a first light beam, the second light source emits a second light beam opposite to the first light beam, and the first light beam and the second light beam are overlapped.
Optionally, in some embodiments of the present invention, the optical detection apparatus further includes a second detection component, the second detection component is located on one side of the first detection component, the second detection component includes a third camera and an internal detection light source which are oppositely disposed, the display panel is located between the third camera and the internal detection light source, and the display panel passes through the second detection component along the first direction.
Optionally, in some embodiments of the present invention, the third camera faces the front of the display panel, the internal detection light source faces the back of the display panel, the light beam emitted by the internal detection light source is emitted from the back of the display panel to the front of the display panel, the portion of the display panel irradiated by the internal detection light source is a second detection area, and the lens of the third camera faces the second detection area and is used for capturing the image of the second detection area corresponding to the display panel.
Optionally, in some embodiments of the present invention, the second detection area extends from one first side of the display panel to another first side of the display panel along the second direction, and the first detection area is spaced apart from the second detection area.
Optionally, in some embodiments of the present invention, the first camera and the second camera are disposed in axial symmetry with respect to the display panel.
The embodiment of the utility model provides a still provide a display panel's conveyer, conveyer is last to be equipped with as above display panel's optical detection device, conveyer is used for bearing and transmits display panel passes through optical detection device, so that optical detection device is right display panel carries out optical detection.
The utility model has the advantages that: the utility model provides a display panel's optical detection device and conveyer thereof sets up first camera and second camera respectively through the front at display panel and the back to it sets up at least one light source to correspond in the side that display panel is on a parallel with its moving direction, the light source can illuminate simultaneously display panel's front and back, and utilize first camera with the second camera is right respectively display panel's front and back detect, optical detection device's simple structure need not upset display panel and can realize carrying out the dust simultaneously to display panel's front and back and detect, has improved the detection precision and has reduced manufacturing cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a side view of a display panel and an optical inspection apparatus according to an embodiment of the present invention;
fig. 2 is a top view of a display panel and an optical detection device according to an embodiment of the present invention;
fig. 3 is a schematic light beam diagram of a light source in a first detecting assembly according to an embodiment of the present invention;
fig. 4 is a top view of a display panel and an optical detection device according to a second embodiment of the present invention;
fig. 5 is a side view of a display panel and an optical detection apparatus according to a third embodiment of the present invention;
fig. 6 is a top view of a display panel and an optical detection device according to a third embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention. Furthermore, it is to be understood that the description herein of specific embodiments is for purposes of illustration and explanation only and is not intended to limit the present disclosure. In the present invention, unless otherwise specified, the use of directional terms such as "upper" and "lower" generally means upper and lower in the actual use or operation of the device, and specifically, the direction of the drawing in the drawings; while "inner" and "outer" are with respect to the outline of the device.
An embodiment of the utility model provides a display panel's optical detection device for carry out dust detection and/or flaw detection to display panel. The optical detection device will be described in detail with reference to specific embodiments, which are set forth below.
Referring to fig. 1 and fig. 2, fig. 1 is a side view of a display panel and an optical detection device according to an embodiment of the present invention; fig. 2 is a top view of a display panel and an optical detection device according to an embodiment of the present invention. The optical detection apparatus includes a first detection assembly 100, and the first detection assembly 100 is used for detecting dust on the surface of the display panel 200. The first detection assembly 100 includes a first camera 101 and a second camera 102, which are oppositely disposed, and a light source 103. The display panel 200 includes a front surface 201 for displaying a screen, and a rear surface 202 opposite to the front surface 201. The display panel 200 is located between the first camera 101 and the second camera 102, and the display panel 200 passes through the first detection assembly 100 along a first direction.
Wherein the display panel 200 comprises two first side faces 203 parallel to the first direction. The light source 103 is disposed on one side of the display panel 200 opposite to the first side 203, and is configured to emit a light beam 1 in a second direction, where light in the light beam 1 is emitted to the front surface 201 and the back surface 202 of the display panel 200 respectively, and the second direction is perpendicular to the first direction and parallel to the display panel 200.
The portion of the display panel 200 illuminated by the light source 103 in the first detection assembly 100 is a first detection area 204, and the lens of the first camera 101 and the lens of the second camera 102 face the first detection area 204 respectively.
Further, the first detection area 204 extends from one first side 203 of the display panel 200 to the opposite first side 203 of the display panel 200 along the second direction. It is understood that as the display panel 200 moves in the first direction, the first detection area 204 of the display panel 200 also moves, i.e., the position of the first detection area 204 on the display panel 200 moves in the first direction.
The first camera 101 faces the front 201 of the display panel 200 and is configured to capture a front image of the display panel 200 corresponding to the first detection area 204. The second camera 102 faces the back surface 202 of the display panel 200 and is used for shooting a back image of the display panel 200 corresponding to the first detection area 204, so that dust detection is performed on the front surface 201 and the back surface 202 of the display panel 200.
Further, the first camera 101 and the second camera 102 are disposed in axial symmetry with respect to the display panel 200.
In this embodiment, the optical detection apparatus may further include a conveying assembly 400, and the conveying assembly 400 is configured to carry and convey the display panel 200 to move in the first direction. Alternatively, the optical detection device may not include the transfer assembly 400, and the optical detection device is used in cooperation with the transfer assembly 400.
As shown in fig. 3, the display panel 200 divides the light beam 1 emitted by the light source 103 in the first detection assembly 100 into a first arc-shaped light beam 11 located on the front surface 201 side of the display panel 200 and a second arc-shaped light beam 12 located on the back surface 202 side of the display panel 200. The light beam 1 can be uniformly irradiated to the first side 203, the front surface 201 and the back surface 202 of the first detection area 204 close to the light source 103.
Further, the first arc-shaped light beam 11 and the second arc-shaped light beam 12 are arranged in an axisymmetric manner with respect to the display panel 200.
As an example, the light source 103 may be a barrel light source, or other light sources capable of achieving uniform illumination on the surface of the display panel.
In this embodiment, the light source 103 can illuminate the front surface 201 and the back surface 202 of the display panel 200 at the same time, and the first camera 101 and the second camera 102 are used to detect the front surface 201 and the back surface 202 of the display panel 200 respectively, so that dust detection can be performed on the front surface 201 and the back surface 202 of the display panel 200 at the same time without turning over the display panel 200, the detection accuracy is improved, the optical detection device has a simple structure, and the production cost is reduced.
Referring to fig. 4, fig. 4 is a top view of a display panel and an optical detection device according to a second embodiment of the present invention. The optical detection device of the present embodiment is similar to the optical detection device of the first embodiment, and the difference is only that: the first detecting assembly 100 of this embodiment includes a first light source 103 and a second light source 104 that are oppositely disposed, and the first light source 103 and the second light source 104 are respectively disposed on two sides of the display panel 200 opposite to the two first side surfaces 203. The first light source 103 emits a first light beam 1, the second light source 104 emits a second light beam 2 opposite to the first light beam 1, and the first light beam 1 and the second light beam 2 overlap.
The first light source 103 and the second light source 104 are disposed opposite to each other, light in the first light beam 1 is emitted to the front surface 201 and the back surface 202 of the display panel 200, light in the second light beam 2 is also emitted to the front surface 201 and the back surface 202 of the display panel 200, and a portion of the display panel 200 irradiated by the first light beam 1 and the second light beam 2 forms a first detection area 204.
Compared with the first embodiment, since one light source is added to the first detecting assembly 100, light beams formed by the two light sources can be overlapped, so that the surface of the display panel 200 is irradiated more uniformly, and the detection precision is improved.
Referring to fig. 5 and 6, fig. 5 is a side view of a display panel and an optical detection device according to a third embodiment of the present invention; fig. 6 is a top view of a display panel and an optical detection apparatus according to a third embodiment of the present invention. The optical detection device comprises a first detection assembly 100 and a second detection assembly 300, wherein the second detection assembly 300 is positioned at one side of the first detection assembly 100, the first detection assembly 100 is used for detecting dust on the surface of the display panel 200, and the second detection assembly 300 is used for detecting flaws inside the display panel 200. The first sensing assembly 100 includes a first camera 101 and a second camera 102 oppositely disposed in a direction perpendicular to the display panel 200, and a first light source 103 and a second light source 104 oppositely disposed in a direction parallel to the display panel 200. The second inspection assembly 300 includes a third camera 301 and an internal inspection light source 302 oppositely disposed in a direction perpendicular to the display panel 200.
The display panel 200 is located between the first camera 101 and the second camera 102, and between the third camera 301 and the light source 302, and the display panel 200 passes through the first detection assembly 100 and the second detection assembly 300 along a first direction.
Specifically, the display panel 200 includes a front surface 201 for displaying a screen, a back surface 202 opposite to the front surface 201, and two first side surfaces 203 parallel to the first direction. The first light source 103 and the second light source 104 are respectively arranged on two sides of the display panel 200 opposite to the two first side surfaces 203. The first camera 101 faces the front 201 of the display panel 200, the second camera 102 faces the back 202 of the display panel 200, the third camera 301 faces the front 201 of the display panel 200, and the internal inspection light source 302 faces the back 202 of the display panel 200.
Further, the first camera 101 and the second camera 102 are disposed in axial symmetry with respect to the display panel 200.
The first light source 103 emits a first light beam 1, the second light source 104 emits a second light beam 2 opposite to the first light beam 1, and the first light beam 1 and the second light beam 2 overlap. Specifically, a portion of the display panel 200 illuminated by the first light source 103 and the second light source 104 is a first detection area 204. In the first detection area 204, the first light beam 1 and the second light beam 2 may uniformly illuminate the front surface 201, the back surface 202, and two first side surfaces 203 connecting the front surface 201 and the back surface 202 of the display panel 200, that is, the first light source 103 and the second light source 104 may illuminate the surface of the display panel 200 corresponding to the first detection area 204. The lens of the first camera 101 and the lens of the second camera 102 face the first detection area 204, respectively, the first camera 101 is configured to capture a front image of the display panel 200 corresponding to the first detection area 204, and the second camera 102 is configured to capture a back image of the display panel 200 corresponding to the first detection area 204, so as to perform dust detection on the surface of the display panel 200 along with the movement of the display panel 200.
The light beam 3 emitted by the internal detection light source 302 is emitted from the back surface 202 of the display panel 200 to the front surface 201 of the display panel 200, the part of the display panel 200 irradiated by the internal detection light source 302 is a second detection area 205, and the lens of the third camera 301 faces the second detection area 205 and is used for shooting the image of the display panel 200 corresponding to the second detection area 205, so that the defect detection of the interior of the display panel 200 is realized. It is understood that as the display panel 200 moves, the position of the second detection area 205 on the display panel 200 also moves.
Further, the second detection area 205 extends from one first side 203 of the display panel 200 to the opposite first side 203 of the display panel 200 along the second direction, and the first detection area 204 is spaced apart from the second detection area 205.
As an example, the internal detection light source 302 may be a laser light source, such as a laser light source with a wavelength band of 808nm, or a laser light source with a wavelength band of 940nm, which is not limited herein.
In another embodiment, only one light source in the first detection assembly 100 may be provided, which may specifically refer to the description in the first embodiment, and will not be described herein again.
In this embodiment, the optical detection apparatus may further include a conveying assembly 400, and the conveying assembly 400 is configured to carry and convey the display panel 200 to move in the first direction. Alternatively, the optical detection device may not include the transfer assembly 400, and the optical detection device is used in cooperation with the transfer assembly 400.
The embodiment can realize the simultaneous dust detection and internal flaw detection on the front and the back of the display panel without turning the display panel, simplifies the detection process and improves the detection precision. In addition, the optical detection device is simple in structure, and production cost is reduced.
The embodiment of the utility model provides a still provide a display panel's conveyer, conveyer is put on the shelf and is had as above study detection device, conveyer is used for bearing and transmits display panel passes through optics detection device, so that optics detection device is right display panel carries out optical detection. Wherein, the conveying device may be a roller type display panel conveying device. Because the learning detection device of this embodiment can directly erect on display panel's conveyer, need not to change and produce the line for degree of automation is higher.
The embodiments of the present invention have been described in detail, and the principles and embodiments of the present invention have been explained herein using specific embodiments, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be some changes in the specific implementation and application scope, and to sum up, the content of the present specification should not be understood as a limitation to the present invention.
Claims (10)
1. The optical detection device for the display panel is characterized by comprising a first detection assembly, a second detection assembly and a control assembly, wherein the first detection assembly comprises a first camera and a second camera which are oppositely arranged, and at least one light source;
the display panel is positioned between the first camera and the second camera, and the display panel passes through the first detection assembly along a first direction;
the at least one light source is arranged right opposite to a first side face, parallel to the first direction, of the display panel and used for emitting light beams in a second direction, light rays in the light beams are respectively emitted to the front face and the back face of the display panel, and the second direction is perpendicular to the first direction and parallel to the display panel;
the part of the display panel, which is irradiated by the light source in the first detection assembly, is a first detection area, and the lens of the first camera and the lens of the second camera face the first detection area respectively.
2. The optical inspection apparatus for a display panel according to claim 1, wherein the display panel includes two oppositely disposed first sides, the first inspection area extending from one first side of the display panel to the opposite first side of the display panel along the second direction;
the first camera faces the front face of the display panel and is used for shooting a front face image of the display panel corresponding to the first detection area; the second camera faces the back of the display panel and is used for shooting a back image of the display panel corresponding to the first detection area.
3. The apparatus of claim 2, wherein the display panel divides the light beam emitted from the light source of the first detecting assembly into a first arc-shaped light beam at a front side of the display panel and a second arc-shaped light beam at a back side of the display panel.
4. The optical inspection apparatus for a display panel according to claim 3, wherein the first arc-shaped light beam and the second arc-shaped light beam are disposed axisymmetrically with respect to the display panel.
5. The optical inspection apparatus for the display panel according to claim 2, wherein the first inspection assembly comprises a first light source and a second light source which are oppositely disposed, and the first light source and the second light source are respectively disposed opposite to the two first sides of the display panel;
the first light source emits a first light beam, the second light source emits a second light beam opposite to the first light beam, and the first light beam and the second light beam are overlapped.
6. The optical inspection apparatus of claim 2 or 5, further comprising a second inspection assembly disposed at one side of the first inspection assembly, wherein the second inspection assembly comprises a third camera and an internal inspection light source disposed opposite to each other, wherein the display panel is disposed between the third camera and the internal inspection light source, and wherein the display panel passes through the second inspection assembly along the first direction.
7. The apparatus according to claim 6, wherein the third camera faces a front surface of the display panel, the internal detection light source faces a back surface of the display panel, the internal detection light source emits a light beam from the back surface of the display panel to the front surface of the display panel, a portion of the display panel illuminated by the internal detection light source is a second detection area, and a lens of the third camera faces the second detection area and is configured to capture an image of the display panel corresponding to the second detection area.
8. The apparatus of claim 7, wherein the second detection area extends from one first side of the display panel to an opposite first side of the display panel along the second direction, and the first detection area is spaced apart from the second detection area.
9. The optical inspection apparatus for a display panel according to claim 1, wherein the first camera and the second camera are disposed axisymmetrically with respect to the display panel.
10. A conveying apparatus for a display panel, wherein the conveying apparatus is provided with an optical inspection apparatus for a display panel according to any one of claims 1 to 9, and the conveying apparatus is configured to carry and transport the display panel past the optical inspection apparatus, so that the optical inspection apparatus performs optical inspection on the display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221277840.9U CN217505158U (en) | 2022-05-25 | 2022-05-25 | Optical detection device of display panel and conveying device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221277840.9U CN217505158U (en) | 2022-05-25 | 2022-05-25 | Optical detection device of display panel and conveying device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217505158U true CN217505158U (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221277840.9U Active CN217505158U (en) | 2022-05-25 | 2022-05-25 | Optical detection device of display panel and conveying device thereof |
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| Country | Link |
|---|---|
| CN (1) | CN217505158U (en) |
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- 2022-05-25 CN CN202221277840.9U patent/CN217505158U/en active Active
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Effective date of registration: 20240320 Address after: No.318, Fangzhou Road, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee after: Suzhou Huaxing photoelectric display Co.,Ltd. Country or region after: Zhong Guo Address before: No. 338, Fangzhou Road, Suzhou Industrial Park, Suzhou, Jiangsu 215000 Patentee before: Suzhou Huaxing Optoelectronic Technology Co.,Ltd. Country or region before: Zhong Guo |
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