CN106980194B - dispensing device and method for backlight module, display device and electronic equipment - Google Patents
dispensing device and method for backlight module, display device and electronic equipment Download PDFInfo
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- CN106980194B CN106980194B CN201710392431.0A CN201710392431A CN106980194B CN 106980194 B CN106980194 B CN 106980194B CN 201710392431 A CN201710392431 A CN 201710392431A CN 106980194 B CN106980194 B CN 106980194B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mathematical Physics (AREA)
Abstract
The invention provides a dispensing device and method of a backlight module, a display device and electronic equipment. This adhesive deposite device includes: the fixing unit comprises a support frame and a fixing piece, and the fixing piece is used for fixing a sample to be subjected to glue dispensing on the support frame; the positioning unit comprises a positioning camera, and the positioning camera is used for determining a dispensing path based on the position of the protective cover plate in the sample to be dispensed; the dispensing unit comprises a dispensing piece, and the dispensing piece is arranged to dispense along the dispensing path. The dispensing device determines the dispensing path based on the position of the protective cover plate, so that the accuracy of the dispensing path can be greatly improved, and the yield of products prepared by the dispensing device is ensured.
Description
Technical Field
The invention relates to the field of electronic equipment manufacturing, in particular to a glue dispensing device and method for a backlight module, a display device and electronic equipment.
Background
with the development of liquid crystal display technology, liquid crystal display panels (LCDs) are increasingly applied to various electronic devices to achieve display functions and human-computer interaction such as touch control. The liquid crystal display panel is internally packaged with liquid crystal molecules, and the gray scale of light passing through the liquid crystal molecules is controlled by controlling the deflection of the liquid crystal molecules in each pixel unit in the LCD. Therefore, if the liquid crystal display panel is used to realize the display function, a light source is required to be configured for the liquid crystal display panel, i.e., a backlight module is attached below the liquid crystal display panel. Generally, after a liquid crystal display panel (liquid crystal module) and a backlight module are attached to each other, a protective cover plate is disposed above the liquid crystal display panel to improve the service life of the display device. In order to improve the bonding degree between the backlight module and the liquid crystal module, after the liquid crystal module, the backlight module and the protective cover plate are attached to each other, glue is dispensed on the side walls of the backlight module and the liquid crystal module.
however, the dispensing device and the dispensing method for the backlight module still need to be improved.
Disclosure of Invention
The present application is based on the discovery and recognition by the inventors of the following facts and problems:
The existing glue dispensing device and method generally have the problems of low yield and difficulty in accurately controlling glue dispensing precision. Especially, as the requirements for narrow frames of the existing liquid crystal display panel and display device are higher and higher, the dispensing accuracy is not well controlled, and the yield of the product is directly and greatly improved. The inventor of the present invention has found through extensive research and experiments that the reason is that the current dispensing device and method rarely precisely calculate and control the dispensing path. Specifically, in the conventional dispensing device, a CCD or a camera for capturing positions is generally disposed near the dispensing member, and the sidewall between the backlight module and the liquid crystal module is found to dispense. However, the current device does not perform precise calculation and control on the specific dispensing path, or determine the dispensing position based on the position of the backlight module with poor flatness, thereby causing inaccurate dispensing position and large error. For narrow-frame products, inaccurate dispensing may cause the products to fail the quality inspection standard, thereby greatly reducing the yield of the products. Therefore, if the path of dispensing can be precisely controlled, the above problems can be greatly alleviated, or even solved.
In one aspect, the present invention provides a dispensing apparatus for a backlight module. This adhesive deposite device includes: the fixing unit comprises a support frame and a fixing piece, and the fixing piece is used for fixing a sample to be subjected to glue dispensing on the support frame; the positioning unit comprises a positioning camera, and the positioning camera is used for determining a dispensing path based on the position of the protective cover plate in the sample to be dispensed; the dispensing unit comprises a dispensing piece, and the dispensing piece is arranged to dispense along the dispensing path. The dispensing device determines the dispensing path based on the position of the protective cover plate, so that the accuracy of the dispensing path can be greatly improved, and the yield of products prepared by the dispensing device is ensured.
In another aspect of the present invention, a method for dispensing a backlight module by using the aforementioned dispensing apparatus is provided. The method comprises the following steps: fixing a sample to be subjected to glue dispensing, which comprises a backlight unit and a protective cover plate, on a support frame by using a fixing unit; determining a dispensing path based on the position of the protective cover plate by using a positioning camera of a positioning unit; and dispensing based on the dispensing path by using a dispensing unit. Therefore, the accuracy of the dispensing path can be greatly improved, and the yield of products prepared by the method is ensured.
In yet another aspect of the present invention, a display device is provided. According to an embodiment of the present invention, the display device includes: a protective cover plate; the liquid crystal module is arranged on one side of the protective cover plate; and the backlight module is arranged on one side of the liquid crystal module, which is far away from the protective cover plate, wherein the backlight module realizes glue dispensing by using the glue dispensing device. Therefore, the display device has at least one of the advantages of high yield, low production cost and the like.
In yet another aspect of the present invention, an electronic device is presented. According to an embodiment of the present invention, the electronic device includes the display device described above.
Drawings
Fig. 1 is a schematic structural diagram of a dispensing device for a backlight module according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a sample to be dispensed according to an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a dispensing apparatus for a backlight module according to an embodiment of the invention;
FIG. 4 is a schematic view illustrating a partial structure of a dispensing apparatus for a backlight module according to another embodiment of the present invention;
FIG. 5 is a schematic diagram of a sample prepared by the dispensing apparatus for a backlight module according to an embodiment of the present invention;
FIG. 6 shows a schematic diagram of a process for determining a glue path according to one embodiment of the invention; and
fig. 7 is a schematic view illustrating a partial structure of a sample to be dispensed according to an embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In one aspect of the present invention, a dispensing apparatus for a backlight module is provided. According to an embodiment of the present invention, referring to fig. 1, the dispensing apparatus includes: a fixing unit 100, a positioning unit 200 and a dispensing unit 300. The fixing unit 100 includes a support frame 110 and a fixing member 120, wherein the fixing member 120 is used for fixing the sample to be dispensed on the support frame 110 so as to implement dispensing. The positioning unit 200 includes a positioning camera 210, and the positioning camera 210 is configured to determine a dispensing path based on a position of a protective cover plate in a sample to be dispensed. The dispensing unit 300 includes a dispensing member 310, and the dispensing member 310 is configured to dispense along a dispensing path. The dispensing device determines the dispensing path based on the position of the protective cover plate, so that the accuracy of the dispensing path can be greatly improved, and the yield of products prepared by the dispensing device is ensured.
for convenience of understanding, the following first briefly introduces the composition of the dispensing member and the dispensing position:
Referring to fig. 2, the dispensing device generally includes a protective cover 510, a liquid crystal module 530 and a backlight module 520 according to an embodiment of the invention. The liquid crystal module 530 and the backlight module 520 are both located on the same side of the protective cover 510, so that the protective cover 510 protects the liquid crystal module 530 and the backlight module 520. The liquid crystal module 530 can be attached to one side of the protective cover 510 by the optical adhesive 540, and the backlight module 520 is fixed to one side of the liquid crystal module 530 away from the protective cover. The sample to be dispensed is dispensed, so that the sidewalls of the liquid crystal module 530 and the backlight module 520 are covered by the glue, so as to improve the bonding degree between the liquid crystal module 530 and the backlight module 520. The sample to be dispensed after the dispensing process may have a structure as shown in fig. 5, i.e., a glue layer 10 is formed on the sidewalls of the liquid crystal module 530 and the backlight module 520 to cover the sidewalls of the liquid crystal module 530 and the backlight module 520.
According to the embodiment of the present invention, in order to improve the dispensing effect, when the device is used for dispensing, a sample to be dispensed needs to be fixed on the support frame 110. According to the embodiment of the present invention, the specific shape and structure of the holder 110 and the fixing member 120 are not particularly limited as long as the holder can fix the sample to be dispensed. The support bracket 110 and the fixing member 120 shown in fig. 1 are merely exemplary and should not be construed as limiting the present invention. According to an embodiment of the present invention, the fixing unit may fix the sample to be dispensed on the support frame 110 by vacuum suction. For example, referring to FIG. 3, the fixture unit 100 may further include vacuum suction components (121A-121D as shown). The vacuum adsorption subassembly can be fixed the sample of waiting to glue on the mounting through vacuum adsorption. It should be noted that the specific number of the vacuum adsorption assemblies is not particularly limited, and for stable fixation, 4 vacuum adsorption assemblies may be disposed at four corners of the sample to be dispensed. According to another embodiment of the present invention, a vacuum suction assembly may be fixed on the supporting frame 110, and the vacuum suction assembly may be used as the fixing member 120.
according to an embodiment of the present invention, in order to position the camera 210 for better work, the positioning unit 200 may further include a light source 220. The light source 220 is arranged to illuminate the position where the positioning camera 310 is located, so as to improve the brightness of the view when the positioning camera 310 performs grabbing. According to an embodiment of the present invention, referring to fig. 3 and 4, the light source 220 and the positioning camera 310 may be disposed on two sides of the protective cover 510 along the direction in which the supporting frame 110 is disposed. It will be appreciated by those skilled in the art that the protective cover 510 is typically a transparent glass plate. Therefore, the light source 220 and the positioning camera 310 are respectively disposed on two sides of the protective cover 510, so that the light emitted from the light source 220 can penetrate through the protective cover 510 to illuminate the working area of the positioning camera 310.
according to the embodiment of the present invention, the positioning unit 200 is configured to be able to grasp two first positioning points on two sidewalls of the protective cover 510 facing the backlight module 520, and two second positioning points on two sidewalls of the backlight module 520, which are oppositely disposed and perpendicular to the protective cover 510. And, the two first fixing points are connected to form a straight line parallel to the sidewall edge line of the protective cover 510. The dispensing path is determined based on the relatively flat protective cover 510, which is beneficial to improving the dispensing precision.
for convenience of understanding, the specific process of determining the dispensing path by the dispensing device is described in detail below:
according to an embodiment of the present invention, the positioning unit 200 may further include a computing component, the computing component is respectively connected to the positioning camera and the dispensing unit, and calculates and determines the dispensing path according to the first positioning point and the second positioning point captured by the positioning camera 310. The dispensing path is input to the dispensing element 310 of the dispensing unit 300, so that the dispensing element 310 performs dispensing along the dispensing path.
in the embodiment of the present invention, when the dispensing apparatus works, referring to fig. 4 and 6, the positioning camera 310 is first moved to the top of the protective cover plate and one side wall of the backlight module 520. The field of view of the positioning camera 310 at this time is shown in fig. 6. First, a first positioning point a on the protective cover 510 is grasped by the positioning camera 310. The first fixed point a may be a point or a line. Subsequently, the positioning camera 310 is used to capture a second positioning point B located on the backlight module 520. The first positioning point a may be as close as possible to the edge of the protective cover 510, and the second positioning point B may be as close as possible to the edge of the sidewall of the backlight module 520. Subsequently, the positioning camera 310 is moved to the other end along the sidewall of the protective cover 510, and another first positioning point C and a second positioning point D are grabbed. The coordinates of the A, B, C, D four points are then passed to the calculation component. The computing element first determines a first direction (e.g., the Y direction shown in the figure) based on a connection between the first location point a and the first location point B. The first direction is the direction in which the glue dispenser is subsequently moved. Subsequently, the second positioning point B is projected to the Y direction to determine the starting point position of dispensing. And projecting the second positioning point D to the Y direction, and determining the end point position of the dispensing. The dispensing starting point, the dispensing ending point and the moving direction (the first direction) of the dispensing member form a dispensing path. According to the different thicknesses of the liquid crystal module and the backlight module, the dispensing path can be adjusted in a second direction (i.e. the X direction shown in the figure) perpendicular to the first direction.
According to the embodiment of the present invention, the inventor has found through a lot of experiments that, in the process of determining the dispensing path, the Y direction (the first direction) is kept as horizontal as possible, i.e., parallel to the edge of the protective cover 510, which is crucial to improve the dispensing accuracy. If the first direction cannot be kept as horizontal as possible or a certain deviation angle exists, even if the starting point and the end point can be accurately determined, the dispensing accuracy is greatly reduced. Therefore, according to the dispensing apparatus of the embodiment of the present invention, the first direction is determined by grabbing two first positioning points on the protective cover 510. Since the protective cover 510 has a smoother edge than the lcd module 530 and the backlight module 520, and the mechanical strength of the protective cover 510 is significantly higher than the lcd module 530 and the backlight module 520, the protective cover 510 is not easily deformed after being fixed on the supporting frame 110. Therefore, the defects of point deviation, point inclination and the like of final point gluing can be relieved to a great extent. That is, when determining the first direction, it is necessary to make the first direction parallel to the side wall of the protective cover 510 as much as possible, that is, a line connecting the two first positioning points is parallel to the side wall of the protective cover 510.
according to the embodiment of the invention, the starting point and the ending point of the dispensing are determined by projecting two second positioning points to the first direction. Because the glue for dispensing can diffuse in the curing process, the starting point and the end point of dispensing can have certain errors. The second positioning points B and D may be a point or a line segment. That is, the second positioning points B and D do not have to be strictly disposed at the edge of the backlight module 520. Alternatively, referring to fig. 7, a projection B' of the second positioning point B in the first direction may have a distance with the first positioning point a, and the distance may be within 0.15 mm.
according to the embodiment of the invention, the thicknesses of the liquid crystal modules and the backlight modules of different models are slightly different. Therefore, in order to further improve the accuracy of dispensing, according to the embodiment of the invention, the adjustment distance of the dispensing start point and the dispensing end point determined in the foregoing in the second direction (the X direction shown in fig. 6) can be determined according to the thicknesses of the liquid crystal module and the backlight module. Then, based on the adjustment distance, the starting point and the end point are moved towards the backlight module in the second direction so as to determine the dispensing path. Finally, the determined dispensing path is sent to the dispensing member 310, so that the dispensing member 310 performs dispensing along the dispensing path. According to an embodiment of the present invention, the actual moving distance of the starting point and the end point, and the adjustment distance may have an error of 0.02 mm. That is, the actual distance traveled by the starting point and the ending point, as opposed to the adjustment distance, does not exceed 0.02mm in absolute terms.
In another aspect of the present invention, a method for dispensing a backlight module by using the aforementioned dispensing apparatus is provided. Therefore, the product obtained by the method has all the characteristics and advantages of the product prepared by the glue dispensing device, and the description is omitted. In general, the method can greatly improve the yield of products and improve the dispensing precision.
According to an embodiment of the invention, the method comprises: firstly, a fixing unit is utilized to fix a sample to be glued, which comprises a backlight unit and a protective cover plate, on a support frame. And then, determining a dispensing path based on the position of the protective cover plate by using a positioning camera of the positioning unit. Finally, the glue is dispensed by the glue dispensing unit based on the glue dispensing path determined in the foregoing. Therefore, the accuracy of the dispensing path can be greatly improved, and the yield of products prepared by the method is ensured.
According to an embodiment of the present invention, the dispensing path may be determined by: and grabbing two first positioning points on the side wall of the protective cover plate facing one side of the backlight module by using the positioning camera. As mentioned above, the two first positioning points are used for determining the moving path of the dispensing member in the subsequent operation, and therefore, it is necessary to make the connecting line of the two first positioning points as horizontal as possible without an off-angle. That is, the two first positioning points are connected to form a straight line which is parallel to the edge line of the side wall of the protective cover plate. And then, the positioning camera captures two second positioning points which are oppositely arranged and are perpendicular to the side walls of the protective cover plate in the backlight module. And finally, determining a dispensing path based on the two first positioning points and the two second positioning points by utilizing the computing component. In this step, the process of determining the dispensing path based on the two first positioning points and the two second positioning points may be the specific process of determining the dispensing path described above, and will not be described herein again.
according to an embodiment of the present invention, a line connecting two first positioning points may be first determined as the first direction. Then, two second positioning points are projected in the first direction so as to determine the starting point and the end point of the dispensing path. Then, according to the thickness parameter of the sample to be dispensed, for example, according to the thicknesses of the backlight module and the liquid crystal module, the adjustment distances of the starting point and the end point in a second direction are determined, wherein the second direction is perpendicular to the first direction. And finally, based on the determined adjusting distance, moving the starting point and the end point towards the backlight module in the second direction so as to determine a dispensing path. The dispensing path determined by the method can be ensured to be as horizontal as possible in the direction parallel to the side wall of the protective cover plate 510, and the defects of point inclination, point deviation and the like are avoided; in addition, the starting point and the end point of the dispensing can be controlled within the allowable error range simply and conveniently according to the dispensing path determined by the method, so that excessive pursuit of dispensing accuracy can be avoided, and the equipment cost is increased; in addition, the glue dispensing path determined by the method can also fully consider the thickness difference between the liquid crystal modules of different models and the backlight module, and the glue dispensing path is adjusted based on the thickness of the specific sample to be subjected to glue dispensing.
According to the embodiment of the invention, the error of the dispensing path determined by the method on the starting point and the ending point can be controlled within 0.15mm, namely the distance between the first positioning point and the projection of the second positioning point closest to the first positioning point in the first direction can be not more than 0.15 mm. According to the embodiment of the invention, by using the dispensing path determined by the method, the error in the second direction can be controlled within 0.02mm, namely the absolute value of the difference between the actual moving distance of the starting point and the end point and the adjusting distance is not more than 0.02 mm. Therefore, the product prepared by the method can be fully ensured to have higher product yield.
In yet another aspect of the present invention, a display device is provided. According to an embodiment of the present invention, the display device includes: protection cover plate, liquid crystal module and backlight module. The liquid crystal module is arranged on one side of the protective cover plate, and the backlight module is arranged on one side of the liquid crystal module far away from the protective cover plate, wherein the backlight module realizes glue dispensing by using the glue dispensing device. Therefore, the display device has at least one of the advantages of high yield, low production cost and the like.
In yet another aspect of the present invention, an electronic device is presented. According to an embodiment of the present invention, the electronic device includes the display device described above. Therefore, the electronic equipment has at least one of the advantages of high product yield, low production cost and the like. According to the embodiment of the invention, the electronic device can be a mobile phone, a tablet computer, a notebook computer and the like.
the preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
in the description of the present invention, it is to be understood that the terms "length", "width", "thickness", "upper", "lower", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
in the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (11)
1. The utility model provides a dispensing device for backlight unit which characterized in that includes:
The fixing unit comprises a support frame and a fixing piece, and the fixing piece is used for fixing a sample to be subjected to glue dispensing on the support frame;
The positioning unit comprises a positioning camera, and the positioning camera is used for determining a dispensing path based on the position of the protective cover plate in the sample to be dispensed;
The dispensing unit comprises a dispensing piece, and the dispensing piece is arranged to dispense along the dispensing path;
The positioning unit is arranged to be capable of grabbing two first positioning points on the side wall of the side, facing the backlight module, of the protective cover plate, and a straight line formed by the two first positioning points is parallel to the edge line of the side wall of the protective cover plate;
The positioning unit is arranged to be capable of grabbing two second positioning points which are oppositely arranged and vertical to two side walls of the protection cover plate in the backlight module;
the dispensing path is composed of a dispensing starting point, a dispensing end point and a first direction, the first direction is a connecting line of the two first positioning points, and the dispensing starting point and the dispensing end point are projections of the two second positioning points in the first direction respectively;
The first direction is parallel to the side wall edge line of the protective cover plate;
The positioning unit is further used for adjusting the dispensing path in a second direction perpendicular to the first direction according to the thickness parameter of the sample to be dispensed.
2. the dispensing apparatus of claim 1, wherein the positioning unit further comprises: a light source configured to illuminate a location where the positioning camera is located.
3. the dispensing apparatus according to claim 1 or 2, wherein the fixing unit comprises a vacuum suction assembly configured to fix the sample to be dispensed on the fixing member by vacuum suction.
4. the dispensing apparatus according to claim 2, wherein the light source and the positioning camera are respectively disposed on two sides of the protective cover plate along a direction in which the supporting frame is disposed.
5. the dispensing apparatus of claim 1, wherein the positioning unit further comprises:
A computing component connected with the positioning camera and the dispensing unit respectively,
the calculation component is configured to determine the dispensing path using the two first positioning points and the two second positioning points.
6. A method for dispensing a backlight module by using the dispensing apparatus of any one of claims 1 to 5, comprising:
fixing a sample to be subjected to glue dispensing, which comprises a backlight unit and a protective cover plate, on a support frame by using a fixing unit;
Determining a dispensing path based on the position of the protective cover plate by using a positioning camera of a positioning unit;
Dispensing based on the dispensing path by using a dispensing unit;
Further comprising:
grabbing two first positioning points on the side wall of the side, facing the backlight module, of the protective cover plate by using the positioning camera, wherein a straight line formed by connecting the two first positioning points is parallel to the edge line of the side wall of the protective cover plate;
grabbing two second positioning points which are arranged oppositely and are perpendicular to two side walls of the protective cover plate in the backlight module by using the positioning camera;
Determining the dispensing path based on the two first positioning points and the two second positioning points by utilizing a computing component;
The dispensing path is determined by the following steps:
determining a straight line connecting the two first positioning points as a first direction;
projecting the two second positioning points in the first direction so as to determine a starting point and an end point of the dispensing path;
determining the adjustment distance of the starting point and the end point in a second direction according to the thickness parameter of the sample to be subjected to glue dispensing, wherein the second direction is perpendicular to the first direction;
And moving the starting point and the end point towards the backlight module in a second direction based on the adjusting distance so as to determine the dispensing path.
7. The method of claim 6, wherein the first location point is no more than 0.15mm from a projection in the first direction of the second location point closest to the first location point.
8. The method of claim 6, wherein the actual distance traveled by the start point and the end point and the adjusted distance have an error of no more than 0.02 mm.
9. the method of claim 6, wherein the first localization point and the second localization point are each independently a point or a line segment.
10. A display device, comprising:
A protective cover plate;
The liquid crystal module is arranged on one side of the protective cover plate; and
the backlight module is arranged on one side of the liquid crystal module, which is far away from the protective cover plate,
The backlight module is dispensed by the dispensing device of any one of claims 1 to 5.
11. an electronic device characterized by comprising the display device according to claim 10.
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| CN201710392431.0A CN106980194B (en) | 2017-05-27 | 2017-05-27 | dispensing device and method for backlight module, display device and electronic equipment |
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| CN201710392431.0A CN106980194B (en) | 2017-05-27 | 2017-05-27 | dispensing device and method for backlight module, display device and electronic equipment |
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| CN106980194A CN106980194A (en) | 2017-07-25 |
| CN106980194B true CN106980194B (en) | 2019-12-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108052168A (en) * | 2018-01-18 | 2018-05-18 | 广东欧珀移动通信有限公司 | Assemble method, display screen component and the electronic equipment of display screen component |
| CN113600440B (en) * | 2021-08-03 | 2022-07-29 | 武汉华星光电技术有限公司 | Dispensing method of display panel and dispensing device of display panel |
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| KR20110139342A (en) * | 2010-06-23 | 2011-12-29 | 주식회사 프리즘테크놀로지 | Adhesives dispensing device of monitor manufacturing process |
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| CN204503456U (en) * | 2015-01-26 | 2015-07-29 | 深圳市瓯迅达电子有限公司 | A kind of backlight module sizer |
| CN106391397A (en) * | 2016-09-07 | 2017-02-15 | 广东欧珀移动通信有限公司 | Glue spraying device and determination method of border track |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201618660U (en) * | 2009-12-28 | 2010-11-03 | 苏州工业园区泰格电子科技有限公司 | Gelatinizing equipment |
| KR20110139342A (en) * | 2010-06-23 | 2011-12-29 | 주식회사 프리즘테크놀로지 | Adhesives dispensing device of monitor manufacturing process |
| CN102798997A (en) * | 2011-05-24 | 2012-11-28 | 索尼公司 | Displayer |
| CN204503456U (en) * | 2015-01-26 | 2015-07-29 | 深圳市瓯迅达电子有限公司 | A kind of backlight module sizer |
| CN106391397A (en) * | 2016-09-07 | 2017-02-15 | 广东欧珀移动通信有限公司 | Glue spraying device and determination method of border track |
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| CN106980194A (en) | 2017-07-25 |
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