CN110333611B - Supporting mechanism and detection method of display panel - Google Patents
Supporting mechanism and detection method of display panel Download PDFInfo
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- CN110333611B CN110333611B CN201910582434.XA CN201910582434A CN110333611B CN 110333611 B CN110333611 B CN 110333611B CN 201910582434 A CN201910582434 A CN 201910582434A CN 110333611 B CN110333611 B CN 110333611B
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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
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
Abstract
The invention relates to the technical field of glass substrate detection equipment, and discloses a support mechanism and a detection method of a display panel. The supporting mechanism comprises a supporting column and a clamping assembly, wherein the supporting column is used for bearing a piece to be detected; a driving assembly configured to drive the clamping assembly to move in a preset direction. The supporting column is used for bearing the piece to be detected; the clamping assembly is arranged, so that the to-be-detected piece is stably clamped; through setting up drive assembly for drive centre gripping subassembly moves along predetermineeing the direction, in order to drive and wait to detect a translation. After the detection camera finishes the first photographing of the to-be-detected piece, the driving assembly drives the clamping assembly and drives the to-be-detected piece to move along the preset direction so as to avoid the detection blind area, then the to-be-detected piece is re-photographed for the second time by using the detection camera, and the operator can obtain a comprehensive and accurate detection result by combining the twice photographing results.
Description
Technical Field
The invention relates to the technical field of glass substrate detection equipment, in particular to a support mechanism and a detection method of a display panel.
Background
The liquid crystal display has many advantages of thin body, power saving, no radiation, etc., and is widely used. Most of the liquid crystal displays in the existing market are backlight liquid crystal displays, which include a liquid crystal display panel and a backlight module. The liquid crystal display panel has the working principle that liquid crystal molecules are placed in two parallel glass substrates, and the liquid crystal molecules are controlled to change directions by electrifying the glass substrates or not, so that light rays of the backlight module are refracted out to generate pictures.
Before the liquid crystal display leaves the factory, it is necessary to perform a defect detection on the glass substrate, and in the prior art, a detection method for detecting the glass substrate generally includes: the glass substrate is placed on the supporting columns, the irradiation lamp arranged on one side of the glass substrate is turned on, the detection camera shoots the glass substrate from the other side of the glass substrate, and an operator analyzes whether the glass substrate has defects or not by analyzing the photo result. However, due to the shielding of the supporting pillars for carrying the glass substrate, the shielding portions thereof will generate blind detection areas, so that the operator cannot accurately analyze the defects of the shielding portions of the glass substrate by the supporting pillars, thereby causing the incomplete and inaccurate detection of the surface defects of the glass substrate.
Disclosure of Invention
Based on the above, the present invention provides a supporting mechanism and a method for detecting a display panel, which can avoid a detection blind area, so that the detection of the surface defects of the glass substrate is more comprehensive and accurate.
In order to achieve the purpose, the invention adopts the following technical scheme:
a supporting mechanism comprises a supporting column, the supporting column is used for bearing an object to be detected, and the supporting mechanism further comprises: the clamping assembly is used for clamping the piece to be detected; a drive assembly configured to drive the clamping assembly to move in a preset direction.
As a preferred scheme of the supporting mechanism, the clamping assembly comprises a first clamping assembly, and a plurality of first clamping assemblies are respectively arranged on the to-be-detected piece along two side edges of the preset direction.
As a preferable aspect of the supporting mechanism, the first clamp assembly includes: a support; a first cylinder disposed on the bracket; one end of the connecting plate is rotatably connected with the bracket, the other end of the connecting plate is rotatably connected with the middle part of the first clamping plate, and one end of the first clamping plate is rotatably connected with the output end of the first air cylinder; and the second clamping plate is arranged on the bracket and is opposite to the free end of the first clamping plate.
As a preferable aspect of the supporting mechanism, the driving assembly includes: a lead screw nut assembly; the output end of the motor is rotationally connected with a lead screw of the lead screw nut component; the supporting plate is connected with a nut of the screw nut component, and the first clamping component is arranged on the supporting plate.
As a preferable aspect of the supporting mechanism, the supporting mechanism further includes a bearing platform, and a guide assembly is disposed between the supporting plate and the bearing platform, and the guide assembly is configured to move the supporting plate along the preset direction.
As a preferable aspect of the supporting mechanism, the clamping assembly further includes a plurality of second clamping assemblies configured to clamp two other opposite side edges of the to-be-detected member.
As a preferable scheme of the supporting mechanism, the supporting mechanism further comprises a plurality of positioning assemblies, and the plurality of positioning assemblies surround the periphery of the to-be-detected piece and are configured to position the to-be-detected piece.
A detection method of a display panel comprises the following steps:
step S1: the detection device comprises a detection unit and a support mechanism, wherein the support mechanism is used for bearing a piece to be detected; the supporting mechanism comprises a supporting column, a clamping assembly and a driving assembly;
step S2: driving the clamping assembly to clamp two opposite side edges of the to-be-detected piece along a preset direction;
step S3: driving the detection unit to detect the piece to be detected, and acquiring first detection information;
step S4: driving the driving assembly to drive the clamping assembly to move a preset distance along the preset direction;
step S5: driving the detection unit to detect the piece to be detected, and acquiring second detection information;
step S6: and processing the first detection information and the second detection information to obtain final detection information.
As a preferable aspect of a detection method of the display panel,
the step S3 further includes:
step S31: acquiring a first position and first noise information corresponding to the support column (1) in the first detection information;
the step S5 further includes:
step S51: and acquiring second position information and second noise information corresponding to the support column (1) in second detection information.
As a preferable aspect of the method for detecting a display panel, the method for processing the first detection information and the second detection information includes superimposing the first detection information and the second detection information, and removing the first noise information and the second noise information.
The invention has the beneficial effects that:
the invention provides a supporting mechanism which is provided with a supporting column and is used for bearing a piece to be detected; the clamping assembly is arranged, so that the to-be-detected piece is stably clamped; through setting up drive assembly for drive centre gripping subassembly moves along predetermineeing the direction, in order to drive and wait to detect a translation. After the detection camera finishes the first photographing of the to-be-detected piece, the driving assembly drives the clamping assembly and drives the to-be-detected piece to move along the preset direction so as to avoid the detection blind area, then the to-be-detected piece is re-photographed for the second time by using the detection camera, and the operator can obtain a comprehensive and accurate detection result by combining the twice photographing results.
The invention also provides a detection method of the display panel, which has simple and convenient operation process, can avoid the detection blind area and obtain more comprehensive and accurate detection results.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention 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 for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a schematic structural view of a support mechanism provided by the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic structural view of a clamping assembly in the support mechanism provided by the present invention;
fig. 4 is a schematic structural diagram of a positioning assembly in the support mechanism provided by the invention.
In the figure:
1-a support column;
2-a clamping assembly; 201-a first clamping assembly; 202 a second clamping assembly; 21-a first cylinder; 22-a first clamping plate; 23-a second clamping plate; 24-a connecting plate; 25-a scaffold;
3-a drive assembly;
4-a positioning assembly; 41-a second cylinder; 42-a carrier plate; 43-a positioning element;
5-a carrying platform; 51-support plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1-2, the present embodiment provides a supporting mechanism, which includes a supporting column 1, and the supporting column 1 is used for carrying an object to be detected. In this embodiment, the supporting mechanism is mainly used for bearing the glass substrate when the glass substrate is detected, so that the to-be-detected object in this embodiment is the glass substrate, and of course, in other embodiments, the supporting mechanism may also be used for bearing other to-be-detected objects. For convenience of description, the present embodiment will be described by taking the object to be detected as a glass substrate.
Preferably, support column 1 is provided with a plurality ofly, and a plurality of support columns 1 are square array and distribute, sets up support column 1 into a plurality ofly, can increase support column 1 and glass substrate's area of contact, improves the support effect.
In the prior art, when detecting defects on a glass substrate, a general detection method is as follows: the glass substrate is placed on the support column 1, the irradiation lamp arranged on one side of the glass substrate is turned on, the detection camera shoots the glass substrate from the other side of the glass substrate, and an operator analyzes whether the glass substrate has defects or not by analyzing the photo result. However, due to the shielding of the supporting column 1, a detection blind area is generated at the shielding part, so that an operator cannot accurately analyze the defect of the shielding part of the supporting column 1 on the glass substrate, and the detection of the defect on the surface of the glass substrate is incomplete and inaccurate.
In order to solve the above problem, the supporting mechanism provided in the present embodiment further includes a clamping assembly 2 and a driving assembly 3, wherein the clamping assembly 2 is used for clamping the glass substrate, and the driving assembly 3 is configured to drive the clamping assembly 2 to move along a predetermined direction. After the detection camera finishes the first shooting of the glass substrate, the driving assembly 3 drives the clamping assembly 2 and drives the glass substrate to move along the preset direction so as to avoid the detection blind area, then the detection camera is used for shooting the glass substrate for the second time again, and the operator can obtain a comprehensive and accurate detection result by combining the shooting results of two times.
Further, the clamping assembly 2 includes a first clamping assembly 201, and a plurality of first clamping assemblies 201 are respectively disposed on two sides of the glass substrate along the preset direction. Through setting up a plurality of first centre gripping subassemblies 201, can increase the centre gripping size of first centre gripping subassembly 201 to glass substrate, make first centre gripping subassembly 201 more stable to glass substrate's centre gripping, and the process that first centre gripping subassembly 201 centre gripping glass substrate removed along predetermineeing the direction is more steady.
Further, as shown in fig. 3, the first clamping assembly 201 includes: support 25, first cylinder 21, first grip block 22, second grip block 23 and connecting plate 24, wherein, first cylinder 21 sets up on support 25, and the one end and the support 25 of connecting plate 24 rotate to be connected, and the other end rotates with the middle part of first grip block 22 to be connected, and the one end of first grip block 22 rotates with the output of first cylinder 21 to be connected, and second grip block 23 sets up on support 25, and sets up with the free end of first grip block 22 relatively. When the output end of the first cylinder 21 moves upwards, the first clamping plate 22 can be driven to rotate around the pivot point of the connecting plate 24 and the first clamping plate 22, so that the first clamping plate 22 is close to the second clamping plate 23, and the first clamping plate 22 and the second clamping plate 23 are matched to clamp the edge of the glass substrate together; when the output end of the first cylinder 21 moves downward, the first clamping plate 22 can be driven to rotate around the pivot point of the connecting plate 24 and the first clamping plate 22, so that the first clamping plate 22 is far away from the second clamping plate 23, and the first clamping plate 22 and the second clamping plate 23 are separated from clamping the glass substrate.
Further, drive assembly 3 includes screw nut subassembly, motor and backup pad 51, and wherein, the output of motor rotates with the lead screw of screw nut subassembly to be connected, and backup pad 51 is connected with the nut of screw nut subassembly, and a plurality of first centre gripping subassemblies 201 all set up in backup pad 51, and the motor during operation can drive backup pad 51 to drive a plurality of first centre gripping subassemblies 201 that set up on backup pad 51 simultaneously and follow the direction motion of predetermineeing.
Preferably, the supporting mechanism further comprises a bearing platform 5, the supporting plate 51 is slidably disposed on the bearing platform 5, and a guiding assembly is disposed between the supporting plate 51 and the bearing platform 5, and the guiding assembly is configured to move the supporting plate 51 along a preset direction. By providing a guide assembly between the support plate 51 and the load-bearing platform 5, guidance can be provided for the sliding of the support plate 51 on the load-bearing platform 5.
Further, the supporting mechanism further comprises a plurality of positioning components 4, wherein the plurality of positioning components 4 are arranged around the periphery of the glass substrate and are configured to position the glass substrate. In the present embodiment, on two sides of the supporting plate 51 disposed on the carrying platform 5, the plurality of positioning assemblies 4 and the plurality of first clamping assemblies 201 are disposed at intervals; on both sides of the carrying platform 5, where the supporting plate 51 is not disposed, a plurality of positioning assemblies 4 are disposed at intervals. Of course, in other embodiments, the arrangement of the positioning assemblies 4 and the first clamping assemblies 201 may be adjusted according to actual operation conditions.
Further, as shown in fig. 4, the positioning assembly 4 includes a second cylinder 41 and a positioning member 43 connected to each other, and the second cylinder 41 drives the positioning member 43 to move toward or away from the glass substrate, so as to correct the position of the glass substrate on the supporting column 1, and achieve better detection of the glass substrate. Preferably, the positioning member 43 is an elastic member, so that when the positioning member 43 pushes the glass substrate to position the glass substrate, the positioning member 43 is prevented from being in rigid contact with the edge of the glass substrate, and the glass substrate is prevented from being damaged.
Further, the positioning assembly 4 further includes a bearing plate 42, the positioning element 43 is disposed on the bearing plate 42, one of the second cylinder 41 and the bearing plate 42 is provided with a sliding slot, and the other is provided with a sliding block, and the sliding block can slide along the sliding slot. Through setting up the spout and the slider of mutually supporting, provide the direction when can sliding for the relative loading board 42 of setting element 43, realize the steady slip.
Preferably, the clamping assembly 2 further comprises a plurality of second clamping assemblies 202, the plurality of second clamping assemblies 202 being configured to clamp the other two opposite sides of the glass substrate. In this embodiment, the specific structure and clamping process of the second clamping assembly 202 are the same as those of the first clamping assembly 201, and will not be described in detail here. Through setting up second clamping component 202, when detecting the glass substrate, the angle between 5 and the lamp that need adjust sometimes, four sides of first clamping component 201 and the common cooperation centre gripping glass substrate of second clamping component 202 can make the centre gripping more stable.
The support mechanism is low in manufacturing cost, and can stably clamp the glass substrate and simultaneously make the detection of the surface defects of the glass substrate more comprehensive and accurate.
The embodiment further provides a detection method of a display panel, which specifically includes the following steps:
step S1: the detection device comprises a detection unit and a support mechanism, wherein the support mechanism is used for bearing a piece to be detected; the supporting mechanism comprises a supporting column 1, a clamping assembly 2 and a driving assembly 3;
step S2: the driving clamping assembly 2 clamps two opposite side edges of the to-be-detected piece along the preset direction;
step S3: the driving detection unit detects a piece to be detected and acquires first detection information;
step S4: the driving component 3 drives the clamping component 2 to move a preset distance along a preset direction;
step S5: the driving detection unit detects the piece to be detected and acquires second detection information;
step S6: and processing the first detection information and the second detection information to obtain final detection information.
After the detection unit acquires the first detection information, the driving component 3 is driven to drive the clamping component 2 and the to-be-detected piece to move a preset distance, then the detection unit is driven to acquire the second detection information, and through twice detection, the area shielded by the support column 1 in the first detection information can be exposed in the second detection information, so that a more comprehensive and accurate detection result can be obtained.
Specifically, step S3 further includes:
step S31: and acquiring a corresponding first position and first noise information of the support column 1 in the first detection information.
Step S5 further includes:
step S51: and acquiring corresponding second position information and second noise information of the support column 1 in the second detection information.
Finally, the method for processing the first detection information and the second detection information is to overlap the first detection information and the second detection information and remove the first noise information and the second noise information.
The detection method of the display panel is simple and convenient in operation process, can avoid detection blind areas, and obtains comprehensive and accurate detection results.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (8)
1. A supporting mechanism, comprising a supporting column (1), wherein the supporting column (1) is used for carrying a piece to be detected, and is characterized in that the supporting mechanism further comprises:
the clamping assembly (2) is used for clamping the piece to be detected, the clamping assembly (2) comprises a first clamping assembly (201), a plurality of first clamping assemblies (201) are arranged on two side edges of the piece to be detected along a preset direction respectively, the clamping assembly (2) further comprises a plurality of second clamping assemblies (202), and the second clamping assemblies (202) are configured to clamp the other two opposite side edges of the piece to be detected;
a driving component (3), wherein the driving component (3) is configured to drive the clamping component (2) to move along a preset direction so as to avoid a detection blind area.
2. The support mechanism of claim 1, wherein the first clamp assembly (201) comprises:
a bracket (25);
a first cylinder (21) provided on the bracket (25);
the clamping device comprises a first clamping plate (22) and a connecting plate (24), wherein one end of the connecting plate (24) is rotatably connected with the bracket (25), the other end of the connecting plate is rotatably connected with the middle part of the first clamping plate (22), and one end of the first clamping plate (22) is rotatably connected with the output end of the first air cylinder (21);
a second clamping plate (23) arranged on the bracket (25) and opposite to the free end of the first clamping plate (22).
3. The support mechanism according to claim 1, characterized in that the drive assembly (3) comprises:
a lead screw nut assembly;
the output end of the motor is rotationally connected with a lead screw of the lead screw nut component;
the supporting plate (51) is connected with the nut of the screw nut component, and the first clamping component (201) is arranged on the supporting plate (51).
4. The support mechanism according to claim 3, further comprising a carrying platform (5), a guiding assembly being arranged between the support plate (51) and the carrying platform (5), the guiding assembly being configured to move the support plate (51) in the preset direction.
5. The supporting mechanism according to claim 1, further comprising a plurality of positioning assemblies (4), wherein the plurality of positioning assemblies (4) surround the periphery of the to-be-detected piece and are configured to position the to-be-detected piece.
6. The detection method of the display panel is characterized by comprising the following steps:
step S1: the detection device comprises a detection unit and a support mechanism, wherein the support mechanism is used for bearing a piece to be detected; the supporting mechanism comprises a supporting column (1), a clamping assembly (2) and a driving assembly (3);
step S2: driving the clamping assembly (2) to clamp two opposite side edges of the piece to be detected along a preset direction;
step S3: driving the detection unit to detect the piece to be detected, and acquiring first detection information;
step S4: driving the driving component (3) to drive the clamping component (2) to move a preset distance along the preset direction so as to avoid a detection blind area;
step S5: driving the detection unit to detect the piece to be detected, and acquiring second detection information;
step S6: and processing the first detection information and the second detection information to obtain final detection information.
7. The detection method of a display panel according to claim 6,
the step S3 further includes:
step S31: acquiring a first position and first noise information corresponding to the support column (1) in the first detection information;
the step S5 further includes:
step S51: and acquiring second position information and second noise information corresponding to the support column (1) in second detection information.
8. The method according to claim 7, wherein the processing the first detection information and the second detection information comprises superimposing the first detection information and the second detection information, and removing the first noise information and the second noise information.
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| CN201910582434.XA CN110333611B (en) | 2019-06-29 | 2019-06-29 | Supporting mechanism and detection method of display panel |
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| CN201910582434.XA CN110333611B (en) | 2019-06-29 | 2019-06-29 | Supporting mechanism and detection method of display panel |
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| CN111257322A (en) * | 2020-01-14 | 2020-06-09 | 重庆烯宇新材料科技有限公司 | Device for large-size protection panel in inspection |
| CN111855669B (en) * | 2020-07-21 | 2023-05-12 | 苏州精濑光电有限公司 | Substrate detection device |
| CN112881405B (en) * | 2021-01-13 | 2022-08-05 | 苏州精濑光电有限公司 | Detection device and detection method |
| CN113077737B (en) * | 2021-03-31 | 2023-02-28 | 京东方科技集团股份有限公司 | Crimping testing device |
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| CN1637411A (en) * | 2003-12-30 | 2005-07-13 | Lg.菲利浦Lcd株式会社 | Support unit utilized in visual inspection of display substrate |
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| US9411013B2 (en) * | 2014-02-14 | 2016-08-09 | Google, Inc. | Instrument for automated testing of displays |
| CN105784723A (en) * | 2014-12-24 | 2016-07-20 | 日东电工株式会社 | Transmission-type defect detection device and transmission-type defect detection method |
| CN107064175B (en) * | 2017-06-14 | 2019-11-01 | 福州东旭光电科技有限公司 | Off-line type glass substrate conveying device and glass substrate defect detecting device |
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| CN1637411A (en) * | 2003-12-30 | 2005-07-13 | Lg.菲利浦Lcd株式会社 | Support unit utilized in visual inspection of display substrate |
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