CN105158938A - Selecting method of polaroids for liquid crystal display - Google Patents
Selecting method of polaroids for liquid crystal display Download PDFInfo
- Publication number
- CN105158938A CN105158938A CN201510548223.6A CN201510548223A CN105158938A CN 105158938 A CN105158938 A CN 105158938A CN 201510548223 A CN201510548223 A CN 201510548223A CN 105158938 A CN105158938 A CN 105158938A
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- China
- Prior art keywords
- polaroid
- blackness
- liquid crystal
- crystal display
- light source
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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
-
- 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
- G02F1/133528—Polarisers
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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)
- Liquid Crystal (AREA)
- Mathematical Physics (AREA)
Abstract
A selecting method of polaroids for a liquid crystal display includes the steps that a blackness testing instrument LED light source, the first polaroid, a reference checking piece and the second polaroid are placed on a right-angle platform according to the position relation, and the blackness testing instrument LED light source is perpendicular to the reference checking piece and the second polaroid; the second polaroid is rotated so that blackness can reach a specified value, and a line L1 and a line L2 are marked off; whether the two ends of each marked line after being folded in two meet the deviation requirement or not is judged, and if the deviation requirement is met, the second polaroid is cut according to the marked lines. By means of the method, the relative transmittance of the upper polaroid and the lower polaroid before being attached can be detected, it can be guaranteed that the upper polaroid and the lower polaroid which are consistent in blackness are attached to the same liquid crystal display, and therefore the blackness color number changing range of the produced liquid crystal display product is within 0.5 color number.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly a kind of method choosing Polarizer Used for Liquid Crystal Display.
Background technology
In technical field of liquid crystal display common to LCD product have liquid crystal display, liquid crystal light valve etc., wherein liquid crystal display is one of electronic product commonly used.As everyone knows, the imaging of liquid crystal display must rely on polaroid, the basic structure of liquid crystal display as shown in Figure 1, comprise top glass substrate 1, COM electrode 2, upper polaroid 3, lower glass substrate 4, SEG electrode 5, liquid crystal layer 6 and lower polaroid 7, upper polaroid is close in top glass substrate, and lower polaroid is close in lower glass substrate.When two polaroid optical axises are parallel, luminous flux is maximum, is the brightest state; When two polaroid optical axises are vertical, luminous flux is minimum, is the most black state; When two polaroid optical axis included angles are between 0-90 degree, luminous flux is also between minimum and maximum state.If liquid crystal display has lacked any polaroid in process of production, liquid crystal display has been all to show image.
Same liquid crystal light valve also be unable to do without polaroid, and liquid crystal light valve is more taller than the requirement of general display device to polaroid; The liquid crystal display that arc welding mask such as, use, requires to be easy to damage the eyes of operator if blackness and visual angle all do not reach.
But, liquid crystal display product is produced in components and parts used, the polarizing axis of each polaroid might not be all consistent, this just causes in process of production, even if adopt same polaroid with a product and adopt same angle to cut polaroid, but all there is difference in the consistance of the blackness of the liquid crystal display product produced, visual angle and blackness, cannot meet the quality requirements of product.
Summary of the invention
The object of this invention is to provide a kind of choosing method of Polarizer Used for Liquid Crystal Display, it can pass through in production process of liquid crystal displays on the choosing of polaroid and lower polaroid, ensure that two the polarisation relative blacknesses be up and down mounted in same liquid crystal display are consistent, thus make the lcd products blackness look variation range produced in 0.5 look number, meet the quality requirements of product.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows.
A choosing method for Polarizer Used for Liquid Crystal Display, described method adopts a right angle platform, benchmark to verify sheet and blackness tester, and operates according to the following steps:
A. blackness tester LED light source is opened;
B. the first polaroid is attached to above benchmark verification sheet, and benchmark is verified sheet and be placed on below blackness tester, make the first polaroid perpendicular to LED light source;
C. the second polaroid is placed on right angle platform, and is positioned at issuing of benchmark verification sheet, make the second polaroid vertical with LED light source simultaneously;
D. rotate the second polaroid, make blackness reach setting, and draw Article 1 line L1;
E. again the second polaroid is placed on right angle platform;
F. rotate the second polaroid, make blackness reach setting, and draw Article 2 line L2;
G. perpendicular to setting-out L1 or L2 doubling second polaroid;
H. after judging doubling, whether the deviation at two setting-out two ends is all less than 1mm, as being all less than 1mm, then carries out step I; Otherwise return step C;
I. by setting-out, the second polaroid is cut, two polaroids meeting the requirement of liquid crystal display blackness can be obtained.
The choosing method of above-mentioned Polarizer Used for Liquid Crystal Display, step D and the rotation described in step F second polaroid method are: the LED light source upper left hand corner section of the second polaroid being aimed at blackness tester, the lower right corner of hand-held second polaroid rotates the second polaroid.
Owing to have employed above technical scheme, the invention technological progress is as follows.
The present invention can in production process of liquid crystal displays, the relative permeability of the upper polaroid before attachment and lower polaroid is detected, two polarisations up and down consistent for relative blackness can be ensured to be mounted in same liquid crystal display, thus make the lcd products blackness look variation range produced in 0.5 look number, meet the quality requirements of product.
Accompanying drawing explanation
Fig. 1 is the structural representation of liquid crystal display;
Fig. 2 is the position view of each test component of the present invention;
Fig. 3 is process flow diagram of the present invention.
In figure, each label is expressed as: 1, top glass substrate, and 2, COM electrode, 3, upper polaroid, 4, lower glass substrate, 5, SEG electrode, 6, liquid crystal layer, 7, lower polaroid, 8, LED light source, 9, benchmark verification sheet, the 10, second polaroid, 11, try square, 12, right angle platform.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.
The choosing method of Polarizer Used for Liquid Crystal Display provided by the invention is the polaroid that maximal value obtains that two blackness looks number meet same liquid crystal display request for utilization by the minimum i.e. blackness of the lumen fraction of two polaroids up and down on testing liquid crystal display.Test component comprises right angle platform 12, benchmark verification sheet 9, try square 11 and blackness tester, and tested parts are the first polaroid and the second polaroid.The process flow diagram of detection method as shown in Figure 3, specifically comprises the following steps:
A. blackness tester LED light source 8 is opened.In the present invention, blackness tester adopts ADVANTESTQ8221OPTICALMULTIPOWERMETER.
B. the first polaroid is cut by N degree, the first polaroid cut is attached to above benchmark verification sheet, and benchmark is verified sheet and be placed on below blackness tester, the first polaroid is placed perpendicular to LED light source.
C. whole the second polaroid is placed on right angle platform 12, and the benchmark verification sheet posting the first polaroid is positioned between the LED light source of blackness tester and the second polaroid, makes the second polaroid vertical with LED light source simultaneously.
The position relationship of blackness tester LED light source 8, first polaroid, benchmark verification sheet 9, second polaroid 10 and right angle platform 12 as shown in Figure 2.
D. the upper left hand corner section of the second polaroid is aimed at the LED light source of blackness tester, the lower right corner of hand-held second polaroid rotates the second polaroid, blackness tester is made to measure the most black value, then fix the second polaroid and on the second polaroid, draw Article 1 line L1 with try square 11, as the first mark.The present invention adopt right angle platform and try square with the use of, not only can ensure the plane relative level at the second polaroid place, can also ensure that the try square of setting-out is in the rectangular coordinate system of a Relative vertical, improve accuracy of detection.
E. again the second polaroid is placed on right angle platform.
F. the upper left hand corner section of the second polaroid is aimed at the LED light source of blackness tester, the lower right corner of hand-held second polaroid rotates the second polaroid, makes blackness reach setting, and draws Article 2 line L2, as the second mark.The test point of this test is different from the test point position that first time tests, to ensure that Article 1 straight line L1 and Article 2 line L2 can not overlap.
G. perpendicular to setting-out L1 or L2 doubling second polaroid.
H. after judging doubling, whether the deviation at two setting-out two ends is all less than 1mm, as being all less than 1mm, then carries out step I; Otherwise return step C, retest setting-out, until the setting-out on two marks meets deviation requirement.
I. by setting-out, the second polaroid is cut, two polaroids meeting the requirement of liquid crystal display blackness can be obtained.Then two polaroids are attached on liquid crystal indicator, can ensure that the blackness look variation range of each batch products of liquid crystal display is in 0.5 look number, can meet the quality requirements of European CE certification.
Claims (2)
1. the choosing method of Polarizer Used for Liquid Crystal Display, is characterized in that, described method utilizes a right angle platform, benchmark to verify sheet and blackness tester, and operates according to the following steps:
A. blackness tester LED light source is opened;
B. the first polaroid is attached to above benchmark verification sheet, and benchmark is verified sheet and be placed on below blackness tester, make the first polaroid perpendicular to LED light source;
C. the second polaroid is placed on right angle platform, and is positioned at the below of benchmark verification sheet, make the second polaroid vertical with LED light source simultaneously;
D. rotate the second polaroid, make blackness reach setting, and draw Article 1 line L1;
E. again the second polaroid is placed on right angle platform;
F. rotate the second polaroid, make blackness reach setting, and draw Article 2 line L2;
G. perpendicular to setting-out L1 or L2 doubling second polaroid;
H. after judging doubling, whether the deviation at two setting-out two ends is all less than 1mm, as being all less than 1mm, then carries out step I; Otherwise return step C;
I. by setting-out, the second polaroid is cut, two polaroids meeting the requirement of liquid crystal display blackness can be obtained.
2. the choosing method of Polarizer Used for Liquid Crystal Display according to claim 1, it is characterized in that, described step D and the rotation described in step F second polaroid method are: the LED light source upper left hand corner section of the second polaroid being aimed at blackness tester, the lower right corner of hand-held second polaroid rotates the second polaroid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510548223.6A CN105158938B (en) | 2015-08-31 | 2015-08-31 | The choosing method of Polarizer Used for Liquid Crystal Display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510548223.6A CN105158938B (en) | 2015-08-31 | 2015-08-31 | The choosing method of Polarizer Used for Liquid Crystal Display |
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| Publication Number | Publication Date |
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| CN105158938A true CN105158938A (en) | 2015-12-16 |
| CN105158938B CN105158938B (en) | 2019-04-23 |
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| CN201510548223.6A Active CN105158938B (en) | 2015-08-31 | 2015-08-31 | The choosing method of Polarizer Used for Liquid Crystal Display |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969906A (en) * | 2017-04-26 | 2017-07-21 | 武汉华星光电技术有限公司 | The colorimetry computational methods and chrominance distortion method of a kind of display |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003344302A (en) * | 2002-05-31 | 2003-12-03 | Sumitomo Chem Co Ltd | Method and equipment for inspecting polarization film |
| CN101369059A (en) * | 2007-08-13 | 2009-02-18 | 中华映管股份有限公司 | Detection apparatus and detection method |
| CN101566738A (en) * | 2008-04-25 | 2009-10-28 | 上海广电Nec液晶显示器有限公司 | Method for detecting right side and back side of polarizing plate |
| CN101915661A (en) * | 2010-09-03 | 2010-12-15 | 无锡市奥达光电子有限责任公司 | Method and device for detecting optical axis angle of polarization property component |
| CN202024877U (en) * | 2011-03-16 | 2011-11-02 | 中国科学院上海技术物理研究所 | Device used for calibrating transmission axes of polaroid |
| CN102279094A (en) * | 2011-03-16 | 2011-12-14 | 中国科学院上海技术物理研究所 | Apparatus and method for calibrating transmission axis of polaroid |
| CN103697836A (en) * | 2013-12-19 | 2014-04-02 | 合肥京东方光电科技有限公司 | Axial angle measuring device for polaroid |
-
2015
- 2015-08-31 CN CN201510548223.6A patent/CN105158938B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003344302A (en) * | 2002-05-31 | 2003-12-03 | Sumitomo Chem Co Ltd | Method and equipment for inspecting polarization film |
| CN101369059A (en) * | 2007-08-13 | 2009-02-18 | 中华映管股份有限公司 | Detection apparatus and detection method |
| CN101566738A (en) * | 2008-04-25 | 2009-10-28 | 上海广电Nec液晶显示器有限公司 | Method for detecting right side and back side of polarizing plate |
| CN101915661A (en) * | 2010-09-03 | 2010-12-15 | 无锡市奥达光电子有限责任公司 | Method and device for detecting optical axis angle of polarization property component |
| CN202024877U (en) * | 2011-03-16 | 2011-11-02 | 中国科学院上海技术物理研究所 | Device used for calibrating transmission axes of polaroid |
| CN102279094A (en) * | 2011-03-16 | 2011-12-14 | 中国科学院上海技术物理研究所 | Apparatus and method for calibrating transmission axis of polaroid |
| CN103697836A (en) * | 2013-12-19 | 2014-04-02 | 合肥京东方光电科技有限公司 | Axial angle measuring device for polaroid |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969906A (en) * | 2017-04-26 | 2017-07-21 | 武汉华星光电技术有限公司 | The colorimetry computational methods and chrominance distortion method of a kind of display |
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| CN105158938B (en) | 2019-04-23 |
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