CN103513306B - A kind of method calculating backlight module bright enhancement film and mate angle with LCD - Google Patents
A kind of method calculating backlight module bright enhancement film and mate angle with LCD Download PDFInfo
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- CN103513306B CN103513306B CN201210219460.4A CN201210219460A CN103513306B CN 103513306 B CN103513306 B CN 103513306B CN 201210219460 A CN201210219460 A CN 201210219460A CN 103513306 B CN103513306 B CN 103513306B
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Abstract
A kind of method calculating backlight module bright enhancement film and mate angle with LCD provided by the invention, find to occur that positive connection between the critical component bright enhancement film of twill and LCD and the glue frame back side can be ignored without barricade or wall height, and then LCD can in the advantage of the accessible rotation in the glue frame back side, to occur that the reflectance coating of twill backlight is assembled into former exiting surface, by diffusion barrier, upper bright enhancement film and all anti-back side installing to glue frame of lower bright enhancement film, LCD rotates freely on that plane, observe twill whether to disappear simultaneously, test is without LCD placed angle during twill, again the angle of this angle with former bright enhancement film is added and subtracted mutually, directly can obtain correct bright enhancement film angle, this scheme is portable strong, various different LCD can be adapted to.
Description
Technical field
The present invention relates to a kind of method calculating backlight module bright enhancement film and mate angle with LCD.
Background technology
Backlight module is arranged in the below of LCD, as the light source of liquid crystal display, its key components and parts by from respectively lower: shading glue, upper bright enhancement film, lower bright enhancement film, diffusion barrier, the flexible circuit board being welded with some LED, light guide plate, reflectance coating, chase (optional).Wherein, bright enhancement film is the indispensable vitals of backlight module, the high angle scattered light of scattering below it can gather in central angle of visibility by its upper surface zigzag prism arranged in parallel, and the light of script directive central authorities is reflexed in light guide plate, re-use, reach the object improving brightness, two bright enhancement film prism angle up and down of backlight module are vertical, when the prism angle of bright enhancement film does not mate with polaroid light transmission shaft angle under LCD, then twill can be produced.
Be " 200710028231.3 " at application number, be entitled as in the patent of " interference grain processing process of backlight product ", describe the angle that multiple bright enhancement film is set: 15 degree, 30 degree or 45 degree, or select the bright enhancement film of the saw distance of 90/20,90/50, the method of mating the angle of LCD interferes line to eliminate, but along with LCD angle diversity and randomization, this limited angle can not adapt to complicated changeable LCD angle, be difficult to solve from root interfere line problem.
Summary of the invention
One object of the present invention is to overcome above-mentioned the deficiencies in the prior art, provides a kind of angle measurement adaptable calculating backlight module bright enhancement film mates angle method with LCD.
A kind of method calculating backlight module bright enhancement film and mate angle with LCD, described backlight module comprises diffusion barrier, lower bright enhancement film, upper bright enhancement film, shading glue, reflectance coating and the glue frame for installing above-mentioned each parts, glue frame is provided with light guide plate, and described calculating backlight module bright enhancement film mates angle method with LCD comprises:
Reflectance coating is mounted the glue frame front that light guide plate is housed, then the glue frame back side is kept flat upward, successively diffusion barrier, lower bright enhancement film, upper bright enhancement film, shading glue are flattened in light guide plate along light guide plate outward flange;
LCD is fitted to light guide plate in the one side at the glue frame back side, and LCD is rotated freely in the plane in light guide plate, judge whether twill disappears simultaneously;
When judging that twill disappears, test LCD and the length direction of glue frame or the angle of Width, draw coupling angle according to angle calcu-lation.
Further, described bright enhancement film has prism, described LCD has light transmission shaft, the angle of the prism angle of described bright enhancement film is α degree, the light transmission shaft of described LCD is rotated in a clockwise direction rear interference twill and disappears, the angle of the light transmission shaft of LCD and the length direction of glue frame is β degree, coupling angle γ=alpha+beta.
Further, the angle of the prism angle of described bright enhancement film is α degree, and the light transmission shaft of described LCD rotates rear interference twill in the counterclockwise direction and disappears, the angle of the light transmission shaft of LCD and the length direction of glue frame is β degree, coupling angle γ=alpha-beta, when γ is negative value, coupling angle is the supplementary angle of γ.
A kind of method calculating backlight module bright enhancement film and mate angle with LCD provided by the invention, find to occur that positive connection between the critical component bright enhancement film of twill and LCD and the glue frame back side can be ignored without barricade or wall height, and then LCD can in the advantage of the accessible rotation in the glue frame back side, to occur that the reflectance coating of twill backlight is assembled into former exiting surface, by diffusion barrier, upper bright enhancement film and all anti-back side installing to glue frame of lower bright enhancement film, LCD rotates freely on that plane, observe twill whether to disappear simultaneously, test is without LCD placed angle during twill, again the angle of this angle with former bright enhancement film is added and subtracted mutually, directly can obtain correct bright enhancement film angle, this scheme is portable strong, various different LCD can be adapted to.
Accompanying drawing explanation
Fig. 1 be the present invention calculate backlight module bright enhancement film mates a kind of embodiment of the method for angle LCD with LCD turn clockwise after with bright enhancement film relative angle schematic diagram.
Fig. 2 be the present invention calculate backlight module bright enhancement film mates the another kind of embodiment of the method for angle LCD with LCD be rotated counterclockwise after and bright enhancement film relative angle schematic diagram.
Fig. 3 is each parts relative position schematic diagram that the present invention calculates backlight module bright enhancement film mates the rotation LCD of a kind of embodiment of the method for angle during with LCD.
Wherein: glue frame 1; Light guide plate 2; Upper bright enhancement film 3; Lower bright enhancement film 4; Shading glue 5; Diffusion barrier 6; Reflectance coating 7; LCD8.
Embodiment
In order to make technical matters solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in figures 1 and 3, a kind of method calculating backlight module LCD8 and mate angle with bright enhancement film provided by the invention, described backlight module comprises diffusion barrier 6, lower bright enhancement film 4, upper bright enhancement film 3, shading glue 5, reflectance coating 7 and the glue frame 1 for installing above-mentioned each parts, glue frame 1 is provided with light guide plate 2, and calculating backlight module LCD8 mates angle method with bright enhancement film comprises:
Reflectance coating 7 is mounted glue frame 1 front that light guide plate 2 is housed, then glue frame 1 back side is kept flat upward, successively diffusion barrier 6, lower bright enhancement film 4, upper bright enhancement film 3, shading glue 5 are flattened in light guide plate 2 along light guide plate 2 outward flange;
LCD8 is fitted in the light guide plate 2 at glue frame 1 back side, and LCD8 is rotated freely in the plane in light guide plate 2, judge whether twill disappears simultaneously.
When judging that twill disappears, test LCD8 and the length direction of glue frame 1 or the angle of Width, draw coupling angle according to angle calcu-lation.
Angle can be measured under utilizing shading glue 5 LCD8 be pasted onto in backlight to be then placed on projector or complete accurate image-type surveying instrument when measuring the angle of the length direction of LCD8 and glue frame 1 or Width.
In the technical program, LCD8(LCDs, liquidcrystaldisplay writes a Chinese character in simplified form) we are according to the length and width definition direction of glue frame 1, and the direction that the length along glue frame 1 extends is length direction, and the direction that the width along glue frame 1 extends is Width.
Described bright enhancement film has prism, described bright enhancement film is divided into bright enhancement film 3 and lower bright enhancement film 4, described upper bright enhancement film 3 and lower bright enhancement film 4 are equipped with prism, the prism be positioned on bright enhancement film 3 is orthogonal with the prism be positioned on lower bright enhancement film 4, described LCD8 has light transmission shaft, the angle of the prism angle of described bright enhancement film is α degree, the light transmission shaft of described LCD8 is rotated in a clockwise direction rear interference twill and disappears, the angle of the light transmission shaft of LCD8 and the length direction of glue frame 1 is β degree, coupling angle γ=alpha+beta.
The angle of the prism angle of described bright enhancement film is α degree, and the light transmission shaft of described LCD8 rotates rear interference twill in the counterclockwise direction and disappears, and the angle of the light transmission shaft of LCD8 and the length direction of glue frame 1 is β degree, coupling angle γ=alpha-beta.
When γ is negative value, coupling angle is the supplementary angle of γ.
Upper bright enhancement film 3 is orthogonal with the prism angle of lower bright enhancement film 4, and then according to the upper and lower bright enhancement film 4 of coupling angle design, upper bright enhancement film 3, lower bright enhancement film 4 cut the assembling completing backlight module in the normal order.
The difference of the present invention and existing process is, the angle abandoning converting at random with accidentalia bright enhancement film eliminates the method for interfering twill, and utilization rotation LCD8 obtains the relative angle that bright enhancement film mates with it.
There is the backlight module of interfering twill for one, by reference to the accompanying drawings the present invention is set forth further.
The angle of bright enhancement film 3 on the backlight module of twill is had to be 10 degree:
Shown in composition graphs 1, the angle of the first situation: LCD8 and glue frame 1 length direction is 30 degree (Fig. 3), and namely LCD8 has turned clockwise 30 degree, then the angle 10 degree of former brightening piece is added 30 degree, directly can obtain correct upper bright enhancement film 3 angle 40 degree.
Shown in composition graphs 2, the angle of the second situation: LCD8 and glue frame 1 Width is 30 degree (Fig. 3), namely LCD8 has been rotated counterclockwise 30 degree, the angle 10 degree of former brightening piece is deducted 30 degree, for-20 degree, by the custom of angular dimension from a left side, under being embodied in this model, be 160 degree, the supplementary angle of 20 degree, directly can obtain correct upper bright enhancement film 3 angle 160 degree.
Due to upper bright enhancement film 3 and lower bright enhancement film 4 at 90 degrees to each other, the drawing of upper bright enhancement film 3, lower bright enhancement film 4 is redesigned again according to the angle of upper bright enhancement film 3, by original normal ordinal position assembling backlight module after upper bright enhancement film 3 and lower bright enhancement film 4 being cut according to coupling angle, modulation twill terminates.
A kind of method calculating backlight module LCD8 and mate angle with bright enhancement film provided by the invention, find to occur that positive connection between the critical component bright enhancement film of twill and LCD8 and glue frame 1 back side can be ignored without barricade or wall height, and then LCD8 can in the advantage of the accessible rotation in glue frame 1 back side, to occur that the reflectance coating of twill backlight is assembled into former exiting surface, by diffusion barrier 6, upper bright enhancement film 3 and all anti-back side installing to glue frame 1 of lower bright enhancement film 4, LCD8 rotates freely on that plane, observe twill whether to disappear simultaneously, test is without LCD8 placed angle during twill, again the angle of this angle with former bright enhancement film is added and subtracted mutually, directly can obtain correct bright enhancement film angle, this scheme is portable strong, various different LCD8 can be adapted to.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. the method calculating backlight module bright enhancement film and mate angle with LCD, described backlight module comprises diffusion barrier, lower bright enhancement film, upper bright enhancement film, shading glue, reflectance coating and the glue frame for installing above-mentioned each parts, glue frame is provided with light guide plate, it is characterized in that, described calculating backlight module bright enhancement film mates angle method with LCD comprises:
Reflectance coating is mounted the glue frame front that light guide plate is housed, then the glue frame back side is kept flat upward, successively diffusion barrier, lower bright enhancement film, upper bright enhancement film, shading glue are flattened in light guide plate along light guide plate outward flange;
LCD is fitted to light guide plate in the one side at the glue frame back side, and by LCD in light guide plate institute in the plane clockwise or be rotated counterclockwise, judge whether twill disappears simultaneously;
Described bright enhancement film has prism, described LCD has light transmission shaft, and the angle of the prism angle of described bright enhancement film is α degree, when the light transmission shaft of described LCD is rotated in a clockwise direction the disappearance of rear interference twill, the angle of the light transmission shaft of LCD and the length direction of glue frame is β degree, coupling angle γ=alpha+beta; After the light transmission shaft of described LCD rotates in the counterclockwise direction, interference twill disappears, and the angle of the light transmission shaft of LCD and the length direction of glue frame is β degree, coupling angle γ=alpha-beta.
2. calculating backlight module bright enhancement film according to claim 1 mates the method for angle with LCD, it is characterized in that, when γ is negative value, coupling angle is the supplementary angle of γ.
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| CN201210219460.4A CN103513306B (en) | 2012-06-29 | 2012-06-29 | A kind of method calculating backlight module bright enhancement film and mate angle with LCD |
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| CN201210219460.4A CN103513306B (en) | 2012-06-29 | 2012-06-29 | A kind of method calculating backlight module bright enhancement film and mate angle with LCD |
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| CN103513306B true CN103513306B (en) | 2016-01-20 |
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| CN105044945B (en) * | 2015-09-01 | 2019-02-05 | 昆山龙腾光电有限公司 | A kind of diaphragm angle estimator jig |
| CN108195320A (en) * | 2018-01-16 | 2018-06-22 | 信利半导体有限公司 | A kind of test method of bright enhancement film angle |
Citations (3)
| 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 |
| CN101387788A (en) * | 2007-09-10 | 2009-03-18 | 北京京东方光电科技有限公司 | Liquid crystal display |
| CN102121663A (en) * | 2010-12-08 | 2011-07-13 | 友达光电股份有限公司 | Optical film combination, backlight module and display device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100728368B1 (en) * | 2005-05-25 | 2007-06-14 | 엘지전자 주식회사 | Liquid Crystal Display Backlight Unit Include Cone Structure Type Bright Enhancement Film And Manufacture Method of Above Bright Enhancement Film |
| JP4648358B2 (en) * | 2007-06-01 | 2011-03-09 | ライツ・アドバンスト・テクノロジー株式会社 | Light guide plate and flat illumination device |
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Patent Citations (3)
| 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 |
| CN101387788A (en) * | 2007-09-10 | 2009-03-18 | 北京京东方光电科技有限公司 | Liquid crystal display |
| CN102121663A (en) * | 2010-12-08 | 2011-07-13 | 友达光电股份有限公司 | Optical film combination, backlight module and display device |
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Address after: 518119 Guangdong province Shenzhen City Dapeng new Kwai town Yanan Road No. 1 building experimental Byd Co Patentee after: Shenzhen helitai photoelectric Co., Ltd Address before: 518119 Guangdong province Shenzhen City Dapeng new Kwai town Yanan Road No. 1 building experimental Byd Co Patentee before: SHENZHEN BYD ELECTRONIC COMPONENT Co.,Ltd. |