CN105353536A - Thickness detection device for liquid crystal panels - Google Patents
Thickness detection device for liquid crystal panels Download PDFInfo
- Publication number
- CN105353536A CN105353536A CN201510742220.6A CN201510742220A CN105353536A CN 105353536 A CN105353536 A CN 105353536A CN 201510742220 A CN201510742220 A CN 201510742220A CN 105353536 A CN105353536 A CN 105353536A
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- CN
- China
- Prior art keywords
- laser
- liquid crystal
- crystal panel
- thickness detection
- detection device
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- 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.)
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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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a thickness detection device for liquid crystal panels. The thickness detection device is characterized in that the thickness detection device comprises a laser emission system, a laser reception system and a data processing device; the laser emission system comprises a laser emitter, a laser controller used for adjusting emission frequency of the laser emitter, and beam splitters used for splitting laser beams emitted by the laser emitter; the laser reception system comprises multiple laser sensors; the laser sensors and the beam splitters are respectively located on upper and lower sides of the liquid crystal panels; and the data processing system is connected with all the laser sensors in a communication mode so that each group of light value is converted to corresponding thickness value. The thickness detection device for liquid crystal panels has following beneficial effects: thickness measurement of the liquid crystal panels in an on-line manner is achieved in order to prevent panels of abnormal thicknesses from entering vacuum deposition equipment, a photoresist coating machine and an exposure machine.
Description
Technical field
The present invention relates to detection field, particularly relate to the thickness detection apparatus of liquid crystal panel.
Background technology
Touch-screen is a kind of induction type liquid crystal indicator receiving the input signals such as contact, when contacting the graphic button on screen, haptic feedback system on screen can drive various hookup mechanism according to the formula of programming in advance, in order to replace mechanical push button panel, and lively visual and sound effects can be produced by liquid crystal display picture.Classify according to production technology, touch-screen can be divided into OnCell and InCell, OnCell refers to the method be embedded into by touch-screen between the colored filter substrate of display screen and polaroid, namely on liquid crystal panel, joins touch sensor, compares InCell technical difficulty and reduces many.
The concrete technology of OnCell is on liquid crystal panel, carry out ITO plated film, photoresist exposure, etching, owing to being large plate technique, liquid crystal panel always has topical product in film crystal substrate (TFT) and the color membrane substrates (CF) of front operation is to box process the bad thick problems of box that cause such as the brilliant or bubble of leakage, if there is fragmentation, even damage equipment in the excessive technique such as ITO plated film, photoresist coating, exposure be easy in OnCell technique of the area of leakage crystalline substance in a liquid crystal panel.There is the liquid crystal panel of the thick problem of box can collect rear change technique to focus on, or cut into aftertreatment.Unless carry out the thick measurement of box or macro check just can prevent in risky liquid crystal panel access arrangement to often opening liquid crystal panel, but this way not had volume production feasibility on the production line of any touch-screen.
Summary of the invention
For the problems referred to above, the invention provides thickness detection apparatus and the online test method thereof of liquid crystal panel, can effectively prevent the liquid crystal panel of the thick problem of box to be transferred into the thick equipment had higher requirements of box.
To achieve these goals, technical scheme of the present invention is as follows:
A kind of thickness detection apparatus of liquid crystal panel, it is characterized in that, comprise laser transmitting system, laser receiver system, data handling system, described laser transmitting system comprises generating laser, for adjusting the laser controller of laser transmitter projects frequency, and the beam splitter for the laser beam of laser transmitter projects is carried out disperseing, described laser receiver system comprises several laser sensors, described laser sensor and beam splitter lay respectively at the both sides up and down of liquid crystal panel, described data handling system is connected by correspondence with each laser sensor.
Particularly, described beam splitter comprises several dispersion hole.
Further, described beam splitter is expandable structure.
Preferred as one, the quantity of described laser sensor is consistent with the quantity of dispersion hole in beam splitter.
In order to ensure accurate data, described laser sensor is all vertical corresponding with liquid crystal panel, dispersion hole.
In order to the timely liquid crystal panel to thickness abnormity processes, described pick-up unit also comprises the warning system be connected with data handling system.
Compared with prior art, the present invention has following beneficial effect:
(1) structure of the present invention is simple, and utilize laser sensor to measure liquid crystal panel thickness, its precision can reach 0.5um.
(2) the present invention utilizes the laser beam of light beam decollator to a laser transmitter projects to disperse, and realizes the effect of the multiple output of light source, reduces the usage quantity of generating laser, reduce cost.
(3) beam splitter of the present invention can expand flexibly according to actual demand.
(4) the present invention can adjust laser emission frequency by laser controller, to reach the object of image data flexibly according to demand.
(5) the present invention can be arranged on each equipment outlet in OnCell technique on demand, realizes on-line checkingi.
(6) the present invention can be processed the thick abnormal liquid crystal panel of box in time by warning device.
Accompanying drawing explanation
Fig. 1 is overall schematic of the present invention.
Parts thereof title in accompanying drawing is as follows:
1-generating laser, 2-laser controller, 3-light beam decollator, 4-dispersion hole, 5-laser beam, 6-liquid crystal panel, 7-laser sensor, 8-data handling system, 9-warning system.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described, and embodiments of the present invention include but not limited to the following example.
As shown in Figure 1, a kind of thickness detection apparatus of liquid crystal panel, it is characterized in that, comprise laser transmitting system, laser receiver system, data handling system, described laser transmitting system comprises generating laser, for adjusting the laser controller of laser transmitter projects frequency, and the beam splitter for the laser beam of laser transmitter projects is carried out disperseing, described laser receiver system comprises several laser sensors, described laser sensor and beam splitter lay respectively at the both sides up and down of liquid crystal panel, described data handling system is connected by correspondence with each laser sensor.
Particularly, described beam splitter comprises several dispersion hole.
Further, described beam splitter is expandable structure.
Preferred as one, the quantity of described laser sensor is consistent with the quantity of dispersion hole in beam splitter.
In order to ensure accurate data, described laser sensor is all vertical corresponding with liquid crystal panel, dispersion hole.
In order to the timely liquid crystal panel to thickness abnormity processes, described pick-up unit also comprises the warning system be connected with data handling system.
This pick-up unit can be applied to following occasion:
One, is contained on the carrier card casket of liquid crystal panel, after card casket enters automated storage and retrieval system, when liquid crystal panel takes out from card casket, can detect.
Its two, be arranged on key equipment, as vacuum coating chamber inlet, photoresist coating machine entrance, exposure machine entrance etc., can all install according to actual needs or part install.
Because vacuum equipment all likely has an impact to liquid crystal panel box is thick again, if above position is all installed, supervisory function bit can also be played to equipment.When the new bubble of discovery or the brilliant phenomenon of leakage, can according to reviewing thickness data, quick lock in causes the equipment of problem.
The step that above-mentioned detection device detects liquid crystal panel thickness is as follows:
(1) after the glass sensor transmitting exit has sensed liquid crystal panel, generating laser first group of laser beam, laser beam is entered light beam decollator and is separated into multiple laser bundle perpendicular projection on liquid crystal panel;
(2) light of laser beam after the refraction of liquid crystal panel bilayer is accepted by laser sensor;
(3) signal that laser sensor accepts is transferred into data handling system, is converted into corresponding thickness data by data handling system;
(4) laser controller can control the transmission frequency of generating laser, after first group of radiating laser beams completes, repeats step (1) to step (3);
(5) after the glass sensor transmitting exit senses do not have liquid crystal panel, generating laser quits work;
(6) also simultaneously comprehensive collection carried out to the thickness of liquid crystal panel at liquid crystal panel by the process that transmits to step (5) by step (1);
(7) data that light processing equipment is responsible for gathering are compared process, if exceed allowed band, then the warning device be attached thereto gives the alarm.
Claims (6)
1. the thickness detection apparatus of a liquid crystal panel, it is characterized in that, comprise laser transmitting system, laser receiver system, data handling system, described laser transmitting system comprises generating laser, for adjusting the laser controller of laser transmitter projects frequency, and the beam splitter for the laser beam of laser transmitter projects is carried out disperseing, described laser receiver system comprises several laser sensors, described laser sensor and beam splitter lay respectively at the both sides up and down of liquid crystal panel, described data handling system is connected by correspondence with each laser sensor, corresponding thickness value is converted to by often organizing light numerical value.
2. the thickness detection apparatus of a kind of liquid crystal panel according to claim 1, is characterized in that, described beam splitter comprises several dispersion hole.
3. the thickness detection apparatus of a kind of liquid crystal panel according to claim 2, is characterized in that, described beam splitter is expandable structure.
4. the thickness detection apparatus of a kind of liquid crystal panel according to claim 3, is characterized in that, the quantity of described laser sensor is consistent with the quantity of dispersion hole in beam splitter.
5. the thickness detection apparatus of a kind of liquid crystal panel according to claim 4, is characterized in that, described laser sensor is all vertical corresponding with liquid crystal panel, dispersion hole.
6. the thickness detection apparatus of a kind of liquid crystal panel according to claim, is characterized in that, also comprises the warning system be connected with data handling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510742220.6A CN105353536A (en) | 2015-11-05 | 2015-11-05 | Thickness detection device for liquid crystal panels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510742220.6A CN105353536A (en) | 2015-11-05 | 2015-11-05 | Thickness detection device for liquid crystal panels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105353536A true CN105353536A (en) | 2016-02-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510742220.6A Pending CN105353536A (en) | 2015-11-05 | 2015-11-05 | Thickness detection device for liquid crystal panels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105353536A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106773170A (en) * | 2016-12-29 | 2017-05-31 | 惠科股份有限公司 | Colored filter macroscopic test machine equipment |
-
2015
- 2015-11-05 CN CN201510742220.6A patent/CN105353536A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106773170A (en) * | 2016-12-29 | 2017-05-31 | 惠科股份有限公司 | Colored filter macroscopic test machine equipment |
| WO2018120611A1 (en) * | 2016-12-29 | 2018-07-05 | 惠科股份有限公司 | Dynamic colour filter macroscopic examination system and method |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160224 |