CN208109039U - A kind of flatness checking device of liquid crystal display panel - Google Patents
A kind of flatness checking device of liquid crystal display panel Download PDFInfo
- Publication number
- CN208109039U CN208109039U CN201820295794.2U CN201820295794U CN208109039U CN 208109039 U CN208109039 U CN 208109039U CN 201820295794 U CN201820295794 U CN 201820295794U CN 208109039 U CN208109039 U CN 208109039U
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- display panel
- crystal display
- flatness
- laser displacement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 29
- 238000006073 displacement reaction Methods 0.000 claims abstract description 30
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 238000005259 measurement Methods 0.000 abstract description 11
- 230000004807 localization Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000013499 data model Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The utility model discloses a kind of flatness checking devices of liquid crystal display panel, including rack, mounting plate is provided on the left of the frame upper end, the mounting plate upper left-hand is provided with multiple laser displacement sensors, detection platform is correspondingly arranged on laser displacement sensor in the middle part of the frame upper end, the detection platform upper center is provided with positioning fixture, is provided with central control and display on the right side of the frame upper end.The utility model designs rationally in structure, it is easy to operate, practicability is very high, the flatness automatic detection of liquid crystal display panel may be implemented, liquid crystal panel surface size can be more accurately measured using laser displacement sensor, it measures obtained displacement data and is transmitted to processor, measurement data is subjected to modeling processing in the processor, obtain minimally surrounded area, then the size for calculating minimally surrounded area measures flatness error value, therefore the device has the characteristics that measurement efficiency is high, measurement accuracy is high and measurement error is lesser.
Description
Technical field
The utility model relates to a kind of flatness checking device, the flatness checking device of specifically a kind of liquid crystal display panel.
Background technique
The flatness detection of existing liquid crystal display panel mainly using calliper to measure or takes liquid by multiple displacement sensors
The displacement of several points in crystal panel, then takes out the flatness of maximum value and minimum value displacement difference as liquid crystal display panel.Using
Calliper to measure measurement efficiency is very low, and is easy to appear biggish measurement error.And displacement sensor is used, it needs non-
Normal high accuracy displacement sensor, not can avoid contact high accuracy displacement sensor has certain pressure on liquid crystal display panel
In the presence of so as to cause measurement error, and since (two is parallel flat for the minimally surrounded area of tested practical liquid crystal display panel plane
Face) it is generally not parallel to the datum plane of detection platform, therefore flatness error is not equal to the maximum value and minimum of data measured
The difference of value, it is necessary to it is rotated by datum level, so that datum level is parallel with minimally surrounded area, or is modeled by data measured,
Minimally surrounded area is obtained, the size for then calculating minimally surrounded area measures flatness error value.
Therefore, those skilled in the art provide a kind of flatness checking device of liquid crystal display panel, to solve above-mentioned background
The problem of being proposed in technology.
Summary of the invention
The purpose of this utility model is to provide a kind of flatness checking devices of liquid crystal display panel, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the utility model provides the following technical solutions：
A kind of flatness checking device of liquid crystal display panel, including rack, the frame upper end left side are provided with mounting plate, institute
It states mounting plate upper left-hand and is provided with multiple laser displacement sensors, the frame upper end middle part is corresponding with laser displacement sensor
It is provided with detection platform, the detection platform upper center is provided with positioning fixture, is provided with center on the right side of the frame upper end
Control and display.
As further program of the utility model：The laser displacement sensor quantity is at least 8.
As the utility model further scheme：The installation plate shape is L-type.
As the utility model further scheme：The laser displacement sensor model LTC-025-02SA.
Compared with prior art, the utility model has the beneficial effects that：
The utility model reasonable design, easy operation in structure is quick, and practicability is very high, and liquid crystal display panel may be implemented
Flatness automatic detection can more accurately measure liquid crystal panel surface size using laser displacement sensor, and measurement obtains
Displacement data be transmitted to processor, measurement data is subjected to modeling processing in the processor, minimally surrounded area is obtained, then counts
The size for calculating minimally surrounded area measures flatness error value, therefore the device has high measurement efficiency, measurement accuracy height and surveys
Measure the lesser feature of error.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the flatness checking device of liquid crystal display panel.
Fig. 2 is a kind of processing data model figure of the flatness checking device of liquid crystal display panel.
In figure：1- rack, 2- laser displacement sensor, 3- localization tool, 4- detection platform, the control of the center 5- and display
Device.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, in the utility model embodiment, a kind of flatness checking device of liquid crystal display panel, including rack 1,
It is provided with mounting plate on the left of 1 upper end of rack, the mounting plate upper left-hand is provided with multiple laser displacement sensors 2, institute
It states 1 upper center of rack and laser displacement sensor 2 is correspondingly arranged on detection platform 4,4 upper center of the detection platform setting
There is positioning fixture 3, is provided with central control and display 5 on the right side of 1 upper end of rack.
Referring to Fig. 2, a kind of data model figure of the flatness checking device of liquid crystal display panel, wherein B1, B2, B3 point are to survey
It obtains shift value and obtains maximum three values, A point is to measure displacement minimum value, and the utility model gives the processing of flatness detection data
Method：
The eight displacement data values measured are recorded, data measured value is placed in array：
DATA [8]={ X1, X2, X3, X4, X5, X6, X7, X8 }
Then the data in array are ranked up to count after obtaining sequence according to sequence from big to small using bubbling method
According to array：
DATA [8]={ Z1, Z2, Z3, Z4, Z5, Z6, Z7, Z8 }
Because localization tool 3 fixes liquid crystal display panel, and the position of laser sensor 2 is fixed, so measuring x, y of eight points
Known to coordinate value.
Fetch bit moves the coordinate of maximum three points, and then thus three points can form the plane of worst error, plane side
Journey is as follows：
Ax+By+Cz=D
Due to three coordinates in plane it is known that therefore it can be concluded that the numerical value of A, B, C, D, known to this plane equation.
Due to when detecting flatness error, minimally surrounded area is by maximum planes degree error amount and minimum planes degree error
In worth plane is included in, thus can using the distance of minimum planes degree error to maximum planes degree error amount place plane as
Minimum contain the distance between plane, that is, the flatness error for needing to measure, therefore flatness error it can be concluded that：
2 quantity of laser displacement sensor is at least 8.
The installation plate shape is L-type.
The 2 model LTC-025-02SA of laser displacement sensor.
The working principle of the utility model is：
The utility model relates to a kind of flatness checking devices of liquid crystal display panel, and the liquid crystal display panel detected will be needed to be placed on
It is positioned in detection localization tool 3, laser displacement sensor 2 is made of eight displacement sensors, measures liquid crystal panel surface
Eight points, liquid crystal display panel positioned in localization tool 3 completion after, laser displacement sensor 2 opening measure data, survey
It obtains data and is transmitted to central control and display 5, calculated by algorithm, obtain the flatness numerical value of liquid crystal display panel.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (4)
1. a kind of flatness checking device of liquid crystal display panel, including rack (1), which is characterized in that on the left of rack (1) upper end
It is provided with mounting plate, the mounting plate upper left-hand is provided with multiple laser displacement sensors (2), in rack (1) upper end
Portion and laser displacement sensor (2) are correspondingly arranged on detection platform (4), and detection platform (4) upper center is provided with positioning
Fixture (3), rack (1) the upper end right side are provided with central control and display (5).
2. a kind of flatness checking device of liquid crystal display panel according to claim 1, which is characterized in that the laser displacement
Sensor (2) quantity is at least 8.
3. a kind of flatness checking device of liquid crystal display panel according to claim 1, it is characterised in that the mounting plate shape
Shape is L-type.
4. a kind of flatness checking device of liquid crystal display panel according to claim 1, it is characterised in that the laser displacement
Sensor (2) model LTC-025-02SA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820295794.2U CN208109039U (en) | 2018-03-03 | 2018-03-03 | A kind of flatness checking device of liquid crystal display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820295794.2U CN208109039U (en) | 2018-03-03 | 2018-03-03 | A kind of flatness checking device of liquid crystal display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208109039U true CN208109039U (en) | 2018-11-16 |
Family
ID=64125851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820295794.2U Expired - Fee Related CN208109039U (en) | 2018-03-03 | 2018-03-03 | A kind of flatness checking device of liquid crystal display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208109039U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715638A (en) * | 2019-11-27 | 2020-01-21 | 湖南大合新材料有限公司 | Method for detecting flatness of crystal |
| CN116295222A (en) * | 2023-03-07 | 2023-06-23 | 上海芯谦集成电路有限公司 | A flatness testing method and device |
-
2018
- 2018-03-03 CN CN201820295794.2U patent/CN208109039U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715638A (en) * | 2019-11-27 | 2020-01-21 | 湖南大合新材料有限公司 | Method for detecting flatness of crystal |
| CN116295222A (en) * | 2023-03-07 | 2023-06-23 | 上海芯谦集成电路有限公司 | A flatness testing method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181116 |