CN108195320A - A kind of test method of bright enhancement film angle - Google Patents
A kind of test method of bright enhancement film angle Download PDFInfo
- Publication number
- CN108195320A CN108195320A CN201810041565.2A CN201810041565A CN108195320A CN 108195320 A CN108195320 A CN 108195320A CN 201810041565 A CN201810041565 A CN 201810041565A CN 108195320 A CN108195320 A CN 108195320A
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- CN
- China
- Prior art keywords
- angle
- bright enhancement
- enhancement film
- tft panel
- backlight module
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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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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
-
- 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 discloses a kind of test methods of bright enhancement film angle, include the following steps：S1., backlight module and TFT panel are provided, wherein, the backlight module includes bright enhancement film, the bright enhancement film uses BEF RP bright enhancement films or DBEF bright enhancement films, angle tag line is labeled on the bright enhancement film, angle tag line is used to indicate the angle to be tested of the bright enhancement film, and the TFT panel carries polaroid, and TFT panel is equipped with the datum line along TFT panel diagonal；S2. the backlight module is lighted, TFT panel is covered on the backlight module and rotates freely TFT panel in the plane in backlight module, observation is through the brightness change of the light of TFT panel, when the brightness of the light through the TFT panel is most bright, whether parallel with angle tag line investigate the datum line, if the datum line is parallel with angle tag line, judge that the angle to be tested of the bright enhancement film is correct.The test method of the present invention is simple, at low cost, can the rapidly and accurately angle of test b EF RP bright enhancement films and DBEF bright enhancement films.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of test method of bright enhancement film angle.
Background technology
With the demand of liquid crystal display market high brightness, the generally use bright enhancement film in current liquid crystal display die set,
It is arranged in the backlight module of liquid crystal display die set, to increase the luminous efficiency of backlight module.The angle of bright enhancement film is incorrect
The partially dark participant of illumination effect brightness generates inclined stripe after leading to backlight module fit on LCD.The angle of traditional bright enhancement film is adopted
It is detected with instruments such as projecting apparatus and Quadratic Finite Element etc..With continuous improvement of the market to display requirement, to backlight illumination requirement
Also it is improving, so the bright enhancement film for using 3M companies BEF-RP and DBEF materials is also more and more, at present because of both materials
Bright enhancement film angle can not be detected using the instruments such as projecting apparatus and Quadratic Finite Element.
Invention content
The defects of in order to make up prior art, the present invention provide a kind of test method of bright enhancement film angle.
The technical problems to be solved by the invention are achieved by the following technical programs：
A kind of test method of bright enhancement film angle, includes the following steps：
S1., backlight module and TFT panel are provided, wherein, the backlight module includes bright enhancement film, and the bright enhancement film uses BEF-
RP bright enhancement films or DBEF bright enhancement films, angle tag line is labeled on the bright enhancement film, and the angle tag line is used to indicate described
The angle to be tested of bright enhancement film, the TFT panel carry polaroid, and the TFT panel is equipped with along TFT panel diagonal
Datum line；
S2. the backlight module is lighted, the TFT panel is covered on the backlight module and by TFT panel in backlight module
It rotates freely in the plane, observation penetrates the brightness change of the light of the TFT panel, when the light through the TFT panel
Whether when brightness is most bright, it is parallel with angle tag line to investigate the datum line, if the datum line is parallel with angle tag line,
Judge that the angle to be tested of the bright enhancement film is correct.
Further, the bright enhancement film includes upper strata bright enhancement film and lower floor's bright enhancement film, and the upper strata bright enhancement film and lower floor increase
Light film is into 90 degree of the angle that intersects.
Further, the angle tag line include first angle tag line and second angle tag line, described first jiao
Degree tag line is used to indicate the angle to be tested of the upper strata bright enhancement film, and the second angle tag line is used to indicate the lower floor
The angle to be tested of bright enhancement film, the first angle tag line and second angle tag line intersect into an angle of 90 degrees.
Further, the crosspoint of the first angle tag line and second angle tag line is located at the backlight module
Center.
Further, when through the TFT panel light brightness it is most bright when, investigate the datum line whether with first jiao
Degree tag line is parallel or whether the investigation datum line is parallel with second angle tag line.
Further, when the TFT panel is covered on the backlight module, the TFT panel is equipped with the one of datum line
Face deviates from the direction of the backlight module.
The present invention has the advantages that：
The test method of the present invention is simple, at low cost, can rapidly and accurately test b EF-RP bright enhancement films and DBEF bright enhancement films
Angle.
Description of the drawings
Fig. 1 is the structure diagram of backlight module of the present invention；
Fig. 2 is the structure diagram of TFT panel of the present invention；
Fig. 3 for TFT panel of the present invention rotate after with backlight module relative position schematic diagram.
In figure：1st, backlight module, 2, TFT panel, 3, datum line, 4, first angle tag line, 5, second angle tag line.
Specific embodiment
DBEF bright enhancement films（That is reflecting type polarizing bright enhancement film）It is a kind of diaphragm made of PET is base material, there is angle spy
Property；Its surface has diffusion layer, and blast effect is provided in the application for requiring large viewing.DBEF bright enhancement films can also improve aobvious
Show uniformity, cover up the open defect of backlight raw sheet, optical coupling wet-out phenomenons are eliminated, so as to reduce by an on piece diffusion sheet
It uses.DBEF bright enhancement films can also reduce reflection Moire effect, and surface does not have protective film, make production and assembly more convenient.
DBEF bright enhancement films are more and more utilized for improving the brightness of liquid crystal display.
BEF-RP bright enhancement films belong to composite material, and using DBEF as base material, top is then the prism structure of TBEF, makes it same
When the property with prismatic lens Yu reflecting type polarizing bright enhancement film.
The DBEF bright enhancement films and BEF-RP bright enhancement films of 3M companies production, can reflect using more polarised lights, add lustre to
Rate is higher than the bright enhancement film of common material, improves light enhancing effect, and the light extraction of backlight module is made more to homogenize.
Whether bright enhancement film angle, which is correctly directly related to the brightness effects after backlight module fit on LCD, in backlight module is
It is no normal and whether can generate inclined stripe, so whether the angle that bright enhancement film must be tested is correct.The angle of traditional bright enhancement film
Degree is detected using instruments such as projecting apparatus and Quadratic Finite Element etc., and BEF-RP bright enhancement films and DBEF bright enhancement films are to represent to increase with optical axis
The angle of light film, therefore, the angle of BEF-RP bright enhancement films and DBEF bright enhancement films can not be detected with existing detection method.
Based on the above problem, the present invention provides a kind of test method of bright enhancement film angle, includes the following steps：
S1., backlight module and TFT panel are provided, wherein, the backlight module includes bright enhancement film, and the bright enhancement film uses BEF-
RP bright enhancement films or DBEF bright enhancement films, angle tag line is labeled on the bright enhancement film, and the angle tag line is used to indicate described
The angle to be tested of bright enhancement film, the TFT panel carry polaroid, and the TFT panel is equipped with along TFT panel diagonal
Datum line.
Wherein, the bright enhancement film includes upper strata bright enhancement film and lower floor's bright enhancement film, the upper strata bright enhancement film and lower floor's bright enhancement film
Into 90 degree of the angle that intersects；The angle tag line include first angle tag line and second angle tag line, described first jiao
Degree tag line is used to indicate the angle to be tested of the upper strata bright enhancement film, and the second angle tag line is used to indicate the lower floor
The angle to be tested of bright enhancement film, the first angle tag line and second angle tag line intersect into an angle of 90 degrees；Preferably,
The crosspoint of the first angle tag line and second angle tag line is located at the center of the backlight module.
It should be noted that in order to realize the function of backlight module, in addition to bright enhancement film, backlight module necessarily further includes other
Functional component, due to unrelated with the improvements of the present invention, details are not described herein.
In the present invention, the TFT panel for carrying polaroid is not particularly limited, the conventional arrangement of this field may be used,
Details are not described herein.
It should also be noted that, the angle to be tested of heretofore described bright enhancement film is pre-set according to design requirement
, the present invention is whether to meet sets requirement with the angle of the test method test bright enhancement film.
S2. the backlight module is lighted, the TFT panel is covered on the backlight module and by TFT panel in backlight
Module rotates freely in the plane, and observation penetrates the brightness change of the light of the TFT panel, when through the TFT panel
When the brightness of light is most bright, whether with angle tag line parallel, if the datum line is put down with angle tag line if investigating the datum line
Row, then judge that the angle to be tested of the bright enhancement film is correct.
In the present invention, when the brightness of the light through the TFT panel is most bright, the datum line can be investigated whether with the
One angle tag line is parallel, whether parallel with second angle tag line can also investigate the datum line.
For the ease of observation, when the TFT panel is covered on the backlight module, the TFT panel is equipped with datum line
One side deviate from the backlight module direction.
It should be noted that during bright enhancement film of the test with different angle, the same TFT with polaroid can be used
Panel.
Become polarised light through the light after bright enhancement film, but since the eyes of people do not distinguish the ability of polarised light, therefore nothing
Method is discovered.After if we are positioned the backlight module with bright enhancement film by horizontal direction, and the TFT panel with polaroid
Slowly rotation, so that it may find the intensity of transmitted light as TFT panel rotates and periodically variation occurs.It is it follows that logical
It is different, the vibration pair of this transmitted light of the explanation after bright enhancement film that the light issued after bright enhancement film, which is crossed, with incident light property
The direction of propagation does not have symmetry.Natural light is changed as the light with certain direction of vibration after bright enhancement film, this is because
There is certain characteristic directions for bright enhancement film.And the direction of this light is sent out on through bright enhancement film optical axis or prism angle
, and to detect the angle that bright enhancement film is represented with optical axis when, just can be used to upper principle is detected.
With reference to embodiment, the present invention will be described in detail, and embodiment is only the preferred embodiment of the present invention,
It is not limitation of the invention.
Refering to Fig. 1-3, a kind of test method of bright enhancement film angle includes the following steps：
S1., backlight module and TFT panel are provided, wherein, the backlight module includes bright enhancement film, and the bright enhancement film uses BEF-
RP bright enhancement films or DBEF bright enhancement films, angle tag line is labeled on the bright enhancement film, and the angle tag line is used to indicate described
The angle to be tested of bright enhancement film, the TFT panel carry polaroid, and the TFT panel is equipped with along TFT panel diagonal
Datum line.
Wherein, the bright enhancement film includes upper strata bright enhancement film and lower floor's bright enhancement film, the upper strata bright enhancement film and lower floor's bright enhancement film
Into 90 degree of the angle that intersects；The angle tag line include first angle tag line and second angle tag line, described first jiao
Degree tag line is used to indicate the angle to be tested of the upper strata bright enhancement film（115 degree）, the second angle tag line is used to indicate
The angle to be tested of lower floor's bright enhancement film（25 degree）, the first angle tag line and second angle tag line are intersected into
An angle of 90 degrees；Preferably, the crosspoint of the first angle tag line and second angle tag line is located in the backlight module
The heart.
It should be noted that horizontal defined in the present embodiment is to the right 0 ° of direction, it is clockwise negative angle, counterclockwise for just
Angle.
S2. the backlight module is lighted, the TFT panel is covered on the backlight module, wherein, the TFT panel
One side equipped with datum line deviates from the direction of the backlight module；TFT panel is rotated freely in the plane in backlight module,
Observation penetrates the brightness change of the light of the TFT panel, when the brightness of the light through the TFT panel is most bright, described in investigation
Whether datum line is parallel with first angle tag line, if the datum line is parallel with first angle tag line, judges the increasing
The angle to be tested of light film is correct.
Embodiment described above only expresses embodiments of the present invention, and description is more specific and detailed, but can not
Therefore the limitation to the scope of the claims of the present invention is interpreted as, as long as the skill obtained using the form of equivalent substitution or equivalent transformation
Art scheme should all be fallen within the scope and spirit of the invention.
Claims (6)
1. a kind of test method of bright enhancement film angle, includes the following steps：
S1., backlight module and TFT panel are provided, wherein, the backlight module includes bright enhancement film, and the bright enhancement film uses BEF-
RP bright enhancement films or DBEF bright enhancement films, angle tag line is labeled on the bright enhancement film, and the angle tag line is used to indicate described
The angle to be tested of bright enhancement film, the TFT panel carry polaroid, and the TFT panel is equipped with along TFT panel diagonal
Datum line；
S2. the backlight module is lighted, the TFT panel is covered on the backlight module and by TFT panel in backlight module
It rotates freely in the plane, observation penetrates the brightness change of the light of the TFT panel, when the light through the TFT panel
Whether when brightness is most bright, it is parallel with angle tag line to investigate the datum line, if the datum line is parallel with angle tag line,
Judge that the angle to be tested of the bright enhancement film is correct.
2. the test method of bright enhancement film angle as described in claim 1, which is characterized in that the bright enhancement film adds lustre to including upper strata
Film and lower floor's bright enhancement film, the upper strata bright enhancement film and lower floor's bright enhancement film are into 90 degree of the angle that intersects.
3. the test method of bright enhancement film angle as claimed in claim 2, which is characterized in that the angle tag line includes first
Angle tag line and second angle tag line, the first angle tag line are used to indicate the angle to be tested of the upper strata bright enhancement film
Degree, the second angle tag line are used to indicate the angle to be tested of lower floor's bright enhancement film, the first angle tag line and
Second angle tag line intersects into an angle of 90 degrees.
4. the test method of bright enhancement film angle as claimed in claim 3, which is characterized in that the first angle tag line and
The crosspoint of two angle tag lines is located at the center of the backlight module.
5. the test method of bright enhancement film angle as claimed in claim 3, which is characterized in that when through the light of the TFT panel
Brightness it is most bright when, investigate the datum line it is whether parallel with first angle tag line or investigate the datum line whether with
Second angle tag line is parallel.
6. the test method of bright enhancement film angle as described in claim 1, which is characterized in that the TFT panel is covered in this
When on backlight module, the TFT panel is equipped with direction of the one side away from the backlight module of datum line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810041565.2A CN108195320A (en) | 2018-01-16 | 2018-01-16 | A kind of test method of bright enhancement film angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810041565.2A CN108195320A (en) | 2018-01-16 | 2018-01-16 | A kind of test method of bright enhancement film angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108195320A true CN108195320A (en) | 2018-06-22 |
Family
ID=62589412
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810041565.2A Pending CN108195320A (en) | 2018-01-16 | 2018-01-16 | A kind of test method of bright enhancement film angle |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311790A (en) * | 2007-05-25 | 2008-11-26 | 星磊电子(深圳)有限公司 | Backlight product interference grain processing process |
| US20110221658A1 (en) * | 2010-02-28 | 2011-09-15 | Osterhout Group, Inc. | Augmented reality eyepiece with waveguide having a mirrored surface |
| CN103513306A (en) * | 2012-06-29 | 2014-01-15 | 比亚迪股份有限公司 | Method for calculating matching angle of bright enhancement films of backlight module and LCD |
| CN205450337U (en) * | 2016-02-17 | 2016-08-10 | 信利半导体有限公司 | Light -directing structure , backlight and display screen |
| CN106226948A (en) * | 2016-07-07 | 2016-12-14 | 宁波江北激智新材料有限公司 | A kind of interval descends wobble structure brightness enhancement film on the whole |
-
2018
- 2018-01-16 CN CN201810041565.2A patent/CN108195320A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311790A (en) * | 2007-05-25 | 2008-11-26 | 星磊电子(深圳)有限公司 | Backlight product interference grain processing process |
| US20110221658A1 (en) * | 2010-02-28 | 2011-09-15 | Osterhout Group, Inc. | Augmented reality eyepiece with waveguide having a mirrored surface |
| CN103513306A (en) * | 2012-06-29 | 2014-01-15 | 比亚迪股份有限公司 | Method for calculating matching angle of bright enhancement films of backlight module and LCD |
| CN205450337U (en) * | 2016-02-17 | 2016-08-10 | 信利半导体有限公司 | Light -directing structure , backlight and display screen |
| CN106226948A (en) * | 2016-07-07 | 2016-12-14 | 宁波江北激智新材料有限公司 | A kind of interval descends wobble structure brightness enhancement film on the whole |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180622 |
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| RJ01 | Rejection of invention patent application after publication |