CN106200050B - Liquid crystal display liquid crystal pretilt angle method for measurement and device - Google Patents
Liquid crystal display liquid crystal pretilt angle method for measurement and device Download PDFInfo
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- CN106200050B CN106200050B CN201610797657.4A CN201610797657A CN106200050B CN 106200050 B CN106200050 B CN 106200050B CN 201610797657 A CN201610797657 A CN 201610797657A CN 106200050 B CN106200050 B CN 106200050B
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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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- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
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Abstract
A kind of liquid crystal display liquid crystal pretilt angle method for measurement, the light leakage variation including horizontal side view angle under simulation liquid crystal display difference pre-tilt angle；Select default pre-tilt angle angle as the ratio multiple of each pre-tilt angle light leakage and the preset reference pre-tilt angle light leakage under benchmark acquisition preset level side view angle according to the variation of the light leakage of simulation；Pretilt angle and light leakage multiple proportion formula under preset level side view angle are fitted by the corresponding ratio multiple of pre-tilt angle each under preset level side view angle；Using the pre-tilt angle of known liquid crystal display as the light leakage variation of the horizontal side visual angle light leakage variation of the benchmark pre-dumping angular measurement liquid crystal display, and measurement liquid crystal display horizontal side to be measured visual angle；Select liquid crystal display device light leakage to be measured and the benchmark pre-tilt angle light leakage multiple described in preset level side view angle calculation；Liquid crystal display device light leakage to be measured and benchmark pre-tilt angle light leakage multiple are brought in the fit correlation formula into the pre-tilt angle for calculating prepare liquid crystal display.
Description
Technical field
The present invention relates to technical field of liquid crystal display more particularly to a kind of liquid crystal display liquid crystal pretilt angle method for measurement and
Device.
Background technique
In liquid crystal display, upon application of a voltage, liquid crystal can be rotated along pre-dumping angular direction, the brightness of liquid crystal display with
Its applied voltage leads to liquid crystal pretilt angle size variation and changes.Pre-tilt angle is a critically important liquid crystal display design ginseng
Number, pre-tilt angle influence contrast, response time, the optical parameters such as dark-state light leakage.Pre-tilt angle or exception are monitored in the industrial production
It is very necessary that pre-tilt angle is measured when piece parses.
In the prior art, the liquid crystal difference pre-tilt angle of each product is measured using expensive liquid crystal measuring device, and needs to go
Fall polaroid, destroys liquid crystal.
Summary of the invention
The purpose of the present invention is to provide a kind of liquid crystal display liquid crystal pretilt angle method for measurement, do not destroy the premise of liquid crystal
Lower reduction measurement cost.
The present invention also provides a kind of liquid crystal display liquid crystal pretilt angle measuring equipments.
To achieve the goals above, embodiment of the present invention provides the following technical solutions:
The liquid crystal display liquid crystal pretilt angle method for measurement includes horizontal side under simulation liquid crystal display difference pre-tilt angle
The light leakage at visual angle changes.
It selects default pre-tilt angle angle as benchmark according to the variation of the light leakage of the simulation, obtains preset level side view angle
Under each pre-tilt angle light leakage and the preset reference pre-tilt angle light leakage ratio multiple.
Preset level side view angle is fitted by the corresponding ratio multiple of pre-tilt angle each under the preset level side view angle
Spend lower pretilt angle and light leakage multiple proportion formula.
Using the pre-tilt angle of known liquid crystal display as benchmark pre-tilt angle, the horizontal side visual angle leakage of the liquid crystal display is measured
Light variation.
Measure the light leakage variation at liquid crystal display horizontal side to be measured visual angle.
The preset level side view angle is selected, the liquid crystal display device light leakage to be measured is calculated and the benchmark pre-tilt angle leaks
Light multiple.
The liquid crystal display device light leakage to be measured and benchmark pre-tilt angle light leakage multiple bring into it is described fit it is described default
The pre-tilt angle of prepare liquid crystal display is calculated under horizontal side angle in pretilt angle and light leakage multiple proportion formula.
Wherein, changed by the light leakage that LCD simulation softwares simulate horizontal side view angle under different pre-tilt angles.
Wherein, step selects default pre-tilt angle angle as in benchmark, the default pre-tilt angle angle is preferably simulated and obtains
Light leakage most serious side view angle pre-tilt angle.It is also possible to the pre-tilt angle of other side view angles.
Wherein, institute's step measures the liquid crystal display using the pre-tilt angle of known liquid crystal display as benchmark pre-tilt angle
The light leakage that light leakage variation in horizontal side visual angle measures liquid crystal display horizontal side to be measured visual angle with step changes, and is to choose same back
Light.
Wherein, when the light leakage side view angle of simulation is 50 degree, on the basis of being 90 degree by default pre-tilt angle, pre-dumping is simulated in fitting
Angle and multiple proportion formula are Y=-0.1782X3+1.4241X2- 4.1722X+92.772, wherein X is liquid crystal display to be measured
The ratio of horizontal side visual angle light leakage value and the light leakage value at default liquid crystal display horizontal side visual angle；Y is the liquid crystal for needing to measure
Show device pre-tilt angle.
The present invention also provides a kind of liquid crystal display liquid crystal pretilt angle measuring equipments comprising:
Analog module, the light leakage for simulating horizontal side view angle under liquid crystal display difference pre-tilt angle changes, pre- to choose
If pre-tilt angle angle is as benchmark.
First obtains module, for selecting default pre-tilt angle angle as benchmark according to the variation of the light leakage of the simulation, obtains
Take the ratio multiple of each pre-tilt angle light leakage and the preset reference pre-tilt angle light leakage under preset level side view angle.
Fitting module, for fitting according to the corresponding ratio multiple of pre-tilt angle each under the preset level side view angle
Pretilt angle and light leakage multiple proportion formula under preset level side view angle.
First measurement module, for measuring the liquid crystal using the pre-tilt angle of known liquid crystal display as benchmark pre-tilt angle
Show the horizontal side visual angle light leakage variation of device.
Second measurement module, the light leakage for measuring liquid crystal display horizontal side to be measured visual angle change.
Second obtains module, for selecting the preset level side view angle, calculates the liquid crystal display device light leakage to be measured
With the benchmark pre-tilt angle light leakage multiple.
The liquid crystal display device light leakage to be measured and benchmark pre-tilt angle light leakage multiple are brought into described fit by computing module
The pre-tilt angle of prepare liquid crystal display is calculated under the preset level side view angle in pretilt angle and light leakage multiple proportion formula.
Wherein first measurement module with second measurement module is measured under same backlight.
The embodiment of the present invention have the following advantages that or the utility model has the advantages that
The method for measurement of liquid crystal display panel liquid crystal pretilt angle of the invention, by the pass for finding pre-tilt angle Yu particular optical parameter
System is to measure pre-tilt angle, the pre-tilt angle method for measurement that uses relative to current factory: it does not need to destroy liquid crystal display panel, it is at low cost,
It is more convenient.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is liquid crystal display liquid crystal pretilt angle method for measurement flow chart of the present invention；
Fig. 2 is liquid crystal display liquid crystal pretilt angle method for measurement dummy level side view angle of the present invention light leakage figure；
Fig. 3 is that the default pre-tilt angle and multiple on the basis of under dummy level side view angle light leak situation described in Fig. 2 90 degree close
System's figure；
Fig. 4 is that the default pre-tilt angle and multiple on the basis of under dummy level side view angle light leak situation described in Fig. 2 89 degree close
System's figure；
Fig. 5 is that liquid crystal display liquid crystal of the invention measures apparatus module figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiments shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, is also possible to detachably connected, or integrally connects
It connects；It can be mechanical connection；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The connection in portion.For the ordinary skill in the art, the tool of above-mentioned term in the present invention can be understood with concrete condition
Body meaning.
Referring to Fig. 1, first embodiment of the invention provides a kind of liquid crystal display liquid crystal pretilt angle method for measurement, shadow is found out
Ring main affecting factors-liquid crystal pretilt angle of liquid crystal display horizontal view angle side view light leakage, the liquid crystal display liquid crystal pretilt
Whether angle measurements method meets design requirement for the two sides pre-tilt angle.Step includes:
Step S1 simulates the light leakage variation at horizontal side view angle under liquid crystal display difference pre-tilt angle.As shown in Figure 2, wherein
Curve respectively represents angle and 88 degree of all side view angles between 90 degree and 90 degree to 88 degree from the bottom to top.
Step S2 selects default pre-tilt angle angle as benchmark, obtains preset level according to the variation of the light leakage of the simulation
The ratio multiple of each pre-tilt angle light leakage and the preset reference pre-tilt angle light leakage under side view angle.
Step S3 fits preset level by the corresponding ratio multiple of pre-tilt angle each under the preset level side view angle
Pretilt angle and light leakage multiple proportion formula under side view angle.
Step S4 measures the level of the liquid crystal display using the pre-tilt angle of known liquid crystal display as benchmark pre-tilt angle
The variation of side view angle light leakage.
Step S5 measures the light leakage variation at liquid crystal display horizontal side to be measured visual angle.
Step S6 selects the preset level side view angle, calculates the liquid crystal display device light leakage to be measured and the benchmark
Pre-tilt angle light leakage multiple.
The liquid crystal display device light leakage to be measured and benchmark pre-tilt angle light leakage multiple are brought into the institute fitted by step S7
State the pre-tilt angle for calculating prepare liquid crystal display under preset level side view angle in pretilt angle and light leakage multiple proportion formula.
In the present embodiment, changed by the light leakage that LCD simulation softwares simulate horizontal side view angle under different pre-tilt angles.Tool
Body is LCD Master.
In the present embodiment, step selects default pre-tilt angle angle as in benchmark, the default preferred mould of pre-tilt angle angle
The pre-tilt angle of the side view angle of quasi- obtained light leakage most serious.It is also possible to the pre-tilt angle of other side view angles.
In the present embodiment, institute's step measures the liquid crystal using the pre-tilt angle of known liquid crystal display as benchmark pre-tilt angle
The light leakage for showing that the horizontal side visual angle light leakage variation of device measures liquid crystal display horizontal side to be measured visual angle with step changes, and is to choose together
One backlight.
Fig. 2 and Fig. 3 are please referred to, in the present embodiment, when the light leakage side view angle of simulation is 50 degree, with default pre-tilt angle for 90
On the basis of degree, fitting simulation pretilt angle and multiple proportion formula are Y=-0.1782X3+1.4241X2- 4.1722X+92.772,
In, X is the ratio of the light leakage value at liquid crystal display horizontal side to be measured visual angle light leakage value and default liquid crystal display horizontal side visual angle；
Y is the liquid crystal display pre-tilt angle for needing to measure.
Fig. 2 and Fig. 4 are please referred to, when the light leakage side view angle of simulation is 50 degree, on the basis of presetting pre-tilt angle as non-90 degree,
With 89 degree in the present embodiment, fitting simulation pretilt angle and multiple proportion formula are Y=-0.7753X3+3.796X2-6.8117X+
92.772, wherein X is the light leakage of liquid crystal display horizontal side to be measured visual angle light leakage value and default liquid crystal display horizontal side visual angle
The ratio of value；Y is the liquid crystal display pre-tilt angle for needing to measure.
Liquid crystal display liquid crystal pretilt angle method for measurement described herein is by finding pre-tilt angle and particular optical parameter
Relationship measure pre-tilt angle, relative to pre-tilt angle method for measurement that current factory uses, do not need to destroy liquid crystal.
Referring to Fig. 5, the present invention also provides a kind of liquid crystal display liquid crystal pretilt angle measuring equipments 100 comprising:
Analog module 10, the light leakage for simulating horizontal side view angle under liquid crystal display difference pre-tilt angle changes, to choose
Pre-tilt angle angle is preset as benchmark.
First obtains module 20, for select to preset pre-tilt angle angle as benchmark according to the variation of the light leakage of the simulation,
Obtain the ratio multiple of each pre-tilt angle light leakage and the preset reference pre-tilt angle light leakage under preset level side view angle.
Fitting module 30, for according to the corresponding ratio multiple of pre-tilt angle each under the preset level side view angle, fitting
Pretilt angle and light leakage multiple proportion formula under preset level side view angle out.
First measurement module 40, for measuring the liquid crystal using the pre-tilt angle of known liquid crystal display as benchmark pre-tilt angle
The horizontal side visual angle light leakage of display changes.
Second measurement module 50, the light leakage for measuring liquid crystal display horizontal side to be measured visual angle change.
Second obtains module 60, for selecting the preset level side view angle, calculates the liquid crystal display leakage to be measured
Light and the benchmark pre-tilt angle light leakage multiple.
The liquid crystal display device light leakage to be measured and benchmark pre-tilt angle light leakage multiple are brought into described fit by computing module 70
The preset level side view angle under the pre-dumping of prepare liquid crystal display is calculated in pretilt angle and light leakage multiple proportion formula
Angle.
Wherein first measurement module with second measurement module is measured under same backlight.
Embodiments described above does not constitute the restriction to the technical solution protection scope.It is any in above-mentioned implementation
Made modifications, equivalent substitutions and improvements etc., should be included in the protection model of the technical solution within the spirit and principle of mode
Within enclosing.
Claims (8)
1. a kind of liquid crystal display liquid crystal pretilt angle method for measurement, including,
Simulate the light leakage variation at horizontal side view angle under liquid crystal display difference pre-tilt angle；
It selects default pre-tilt angle angle as benchmark according to the variation of the light leakage of the simulation, obtains each under preset level side view angle
The ratio multiple of pre-tilt angle light leakage and the preset reference pre-tilt angle light leakage；
It is fitted under preset level side view angle by the corresponding ratio multiple of pre-tilt angle each under the preset level side view angle
Pretilt angle and light leakage multiple proportion formula；
Using the pre-tilt angle of known liquid crystal display as benchmark pre-tilt angle, the horizontal side visual angle light leakage for measuring the liquid crystal display becomes
Change, and
Measure the light leakage variation at liquid crystal display horizontal side to be measured visual angle；
The preset level side view angle is selected, the liquid crystal display device light leakage to be measured and the benchmark pre-tilt angle light leakage times are calculated
Number；
The liquid crystal display device light leakage to be measured and benchmark pre-tilt angle light leakage multiple are brought into the preset level fitted
The pre-tilt angle of prepare liquid crystal display is calculated under side view angle in pretilt angle and light leakage multiple proportion formula:
Wherein, the step measures the water of the liquid crystal display using the pre-tilt angle of known liquid crystal display as benchmark pre-tilt angle
The light leakage that light leakage variation in flat side view angle measures liquid crystal display horizontal side to be measured visual angle with the step changes, and is to choose same back
Light.
2. liquid crystal display liquid crystal pretilt angle method for measurement as described in claim 1, which is characterized in that simulated by LCD imitative
True software simulates the light leakage variation at horizontal side view angle under different pre-tilt angles.
3. liquid crystal display liquid crystal pretilt angle method for measurement as described in claim 1, which is characterized in that selecting default pre-dumping
For angle angle as in benchmark, the default pre-tilt angle angle refers to the pre-tilt angle of the side view angle of light leakage most serious.
4. liquid crystal display liquid crystal pretilt angle method for measurement as described in claim 1, which is characterized in that in preset level side view
When angle is 50 degree, pretilt angle and light leakage multiple proportion formula are simulated as Y=- to preset fitting on the basis of pre-tilt angle is 90 degree
0.1782X3+1.4241X2- 4.1722X+92.772, wherein X be liquid crystal display preset level side view angle to be measured light leakage value with
The ratio of the light leakage value at known liquid crystal display preset level side view angle；Y is the liquid crystal display pre-tilt angle for needing to measure.
5. a kind of liquid crystal display liquid crystal pretilt angle measuring equipment, including,
Analog module, the light leakage for simulating horizontal side view angle under liquid crystal display difference pre-tilt angle change, default pre- to choose
Tilt angles are as benchmark；
First obtains module, for selecting default pre-tilt angle angle as benchmark according to the variation of the light leakage of the simulation, obtains pre-
If the ratio multiple of each pre-tilt angle light leakage and the preset reference pre-tilt angle light leakage under horizontal side angle；
Fitting module, for fitting default according to the corresponding ratio multiple of pre-tilt angle each under the preset level side view angle
Pretilt angle and light leakage multiple proportion formula under horizontal side angle；
First measurement module, for measuring the liquid crystal display using the pre-tilt angle of known liquid crystal display as benchmark pre-tilt angle
Horizontal side visual angle light leakage variation；
Second measurement module, the light leakage for measuring liquid crystal display horizontal side to be measured visual angle change；
Second obtains module, for selecting the preset level side view angle, calculates the liquid crystal display device light leakage to be measured and institute
State benchmark pre-tilt angle light leakage multiple；
Computing module is brought the liquid crystal display device light leakage to be measured and benchmark pre-tilt angle light leakage multiple described in described fit into
The pre-tilt angle of prepare liquid crystal display is calculated under preset level side view angle in pretilt angle and light leakage multiple proportion formula；
Wherein first measurement module with second measurement module is measured under same backlight.
6. liquid crystal display liquid crystal pretilt angle measuring equipment as claimed in claim 5, which is characterized in that simulated by LCD imitative
True software simulates the light leakage variation at horizontal side view angle under different pre-tilt angles.
7. liquid crystal display liquid crystal pretilt angle measuring equipment as claimed in claim 5, which is characterized in that the default pre-tilt angle
Angle refers to the side view angle of light leakage most serious.
8. liquid crystal display liquid crystal pretilt angle measuring equipment as claimed in claim 5, which is characterized in that the first measurement mould
Block with second measurement module is measured under same backlight.
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