CN103513306A - Method for calculating matching angle of bright enhancement films of backlight module and LCD - Google Patents
Method for calculating matching angle of bright enhancement films of backlight module and LCD Download PDFInfo
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- CN103513306A CN103513306A CN201210219460.4A CN201210219460A CN103513306A CN 103513306 A CN103513306 A CN 103513306A CN 201210219460 A CN201210219460 A CN 201210219460A CN 103513306 A CN103513306 A CN 103513306A
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Abstract
The invention provides a method for calculating a matching angle of bright enhancement films of a backlight module and an LCD. Necessary connection between bright enhancement films, with inclined patterns, of a key part and an LCD is found, no retaining wall is arranged at the back of a rubber frame or the height of the retaining wall can be neglected, the LCD further can rotate at the back of the rubber frame in a barrier-free mode, a reflecting film with inclined pattern back light is arranged on an original light-emitting face, a diffusion film, an upper bright enhancement film and a lower bright enhancement film are reversely arranged at the back of the rubber frame, the LCD freely rotates on the plane, meanwhile whether the inclined patterns disappear is observed, the arrangement angle of the LCD without the inclined patterns is tested, then add and subtraction are conducted on the angle and the original bright enhancement films, and a correct bright enhancement film angle can be directly obtained. The technical scheme is strong in transportability and can be applied to different LCDs.
Description
Technical field
The present invention relates to a kind of backlight module bright enhancement film that calculates and mate the method for 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 upper from respectively lower: shading glue, upper bright enhancement film, lower bright enhancement film, diffusion barrier, the flexible circuit board that is welded with some LED, light guide plate, reflectance coating, chase (optional).Wherein, bright enhancement film is the indispensable vitals of backlight module, the zigzag prism that its upper surface is arranged in parallel can gather the high angle scattered light of scattering below it in central angle of visibility, and the light of script directive central authorities is reflexed in light guide plate, re-use, reach the object that improves brightness, two bright enhancement film prism angles up and down of backlight module are vertical, when the prism angle of bright enhancement film, do not mate with polaroid light transmission shaft angle under LCD, can produce twill.
At application number, be " 200710028231.3 ", be entitled as in the patent of " interference grain processing process of backlight product ", introduced the angle that a plurality of bright enhancement films are set: 15 degree, 30 degree or 45 degree, or select the bright enhancement film of 90/20,90/50 saw distance, the method of mating the angle of LCD is interfered line to eliminate, but along with the variation of LCD angle and randomization, this limited angle can not adapt to complicated changeable LCD angle, be difficult to solve and interfere line problem from root.
Summary of the invention
One object of the present invention is to overcome above-mentioned the deficiencies in the prior art, provides the adaptable calculating backlight module of a kind of angle measurement bright enhancement film to mate the method for angle with LCD.
A kind of backlight module bright enhancement film that calculates mates the method for angle with LCD, described backlight module comprises diffusion barrier, lower bright enhancement film, upper bright enhancement film, shading glue, reflectance coating and for the glue frame of above-mentioned each parts is installed, 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 to the glue frame front that light guide plate is housed, the Zai Jiangjiaokuang back side keeps flat upward, successively diffusion barrier, lower bright enhancement film, upper bright enhancement film, shading glue is flattened in light guide plate along light guide plate outward flange;
LCD is fitted in the one side at the light guide plate Jiao Kuang back side, and LCD is rotated freely in the plane in light guide plate, judge whether twill disappears simultaneously;
When judgement twill disappears, test LCD and the length direction of glue frame or the angle of Width, calculate coupling angle according to angle.
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 length direction of the light transmission shaft of LCD and 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 in the counterclockwise direction rear interference twill and disappears, the angle of the length direction of the light transmission shaft of LCD and glue frame is β degree, coupling angle γ=alpha-beta, when γ is negative value, coupling angle Weiγ supplementary angle.
A kind of backlight module bright enhancement film that calculates provided by the invention mates the method for angle with LCD, discovery occurs that the critical component bright enhancement film of twill and the positive connection between LCD and the Jiao Kuang back side can ignore without barricade or wall height, and then the advantage of the accessible rotation in the LCD Ke Jiaokuang back side, to occur that twill reflectance coating backlight is assembled into former exiting surface, by diffusion barrier, upper bright enhancement film and lower bright enhancement film be the anti-Jiao Kuang back side that installs to all, LCD rotates freely in this plane, whether observe twill disappears simultaneously, the LCD placed angle of test during without twill, again this angle and the angle of former bright enhancement film are added and subtracted mutually, can directly obtain correct bright enhancement film angle, this scheme is portable strong, can adapt to various LCD.
Accompanying drawing explanation
Fig. 1 be after the present invention calculates backlight module bright enhancement film mates the method for the angle LCD of a kind of embodiment with LCD and turns clockwise with bright enhancement film relative angle schematic diagram.
Fig. 2 is after the present invention calculates backlight module bright enhancement film mates the method for the angle LCD of another kind of embodiment with LCD and is rotated counterclockwise and bright enhancement film relative angle schematic diagram.
Fig. 3 is the present invention's each parts relative position schematic diagram when calculating backlight module bright enhancement film and mating the rotation LCD of a kind of embodiment of method of angle 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 clearer, 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, is not intended to limit the present invention.
As shown in figures 1 and 3, a kind of backlight module LCD8 that calculates provided by the invention mates the method for angle with bright enhancement film, described backlight module comprises diffusion barrier 6, lower bright enhancement film 4, upper bright enhancement film 3, shading glue 5, reflectance coating 7 and for the glue frame 1 of above-mentioned each parts is installed, glue frame 1 is provided with light guide plate 2, and calculating backlight module LCD8 mates angle method with bright enhancement film comprises:
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 judgement twill disappears, test LCD8 and the length direction of glue frame 1 or the angle of Width, calculate coupling angle according to angle.
Then while measuring LCD8 and the length direction of glue frame 1 or the angle of Width, utilize shading glue 5 to stick on LCD8 on backlight is placed under projector or complete accurate image-type surveying instrument and can measures angle.
In the technical program, LCD8(LCDs, liquid crystal display writes a Chinese character in simplified form) we are according to the length and width definition direction of glue frame 1, and the direction of extending along the length of glue frame 1 is length direction, and the direction of extending along the width of glue frame 1 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 being positioned on bright enhancement film 3 is orthogonal with the prism being 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 length direction of the light transmission shaft of LCD8 and 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 in the counterclockwise direction rear interference twill and disappears, and the angle of the length direction of the light transmission shaft of LCD8 and glue frame 1 is β degree, coupling angle γ=alpha-beta.
When γ is negative value, coupling angle Weiγ supplementary angle.
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 that completes in the normal order backlight module.
The difference of the present invention and existing process is, abandons converting at random with accidentalia the method for the angle elimination interference twill of bright enhancement film, utilizes rotation LCD8 to obtain the relative angle that bright enhancement film mates with it.
Take one has that to interfere the backlight module of twill be example, by reference to the accompanying drawings the present invention is done to set forth further.
Having the angle of bright enhancement film 3 on the backlight module of twill is 10 degree:
Shown in Fig. 1, the angle of the first situation: LCD8 and glue frame 1 length direction is 30 degree (Fig. 3), i.e. LCD8 30 degree that turned clockwise, then the angle of former brightening piece 10 degree is added to 30 degree, can directly obtain correct upper bright enhancement film 3 angles 40 degree.
Shown in Fig. 2, the angle of the second situation: LCD8 and glue frame 1 Width is 30 degree (Fig. 4), be that LCD8 has been rotated counterclockwise 30 degree, the angle of former brightening piece 10 degree are deducted to 30 degree, for-20 degree, press angular dimension from left custom, be embodied under this model and be 20Du supplementary angle 160 degree, can directly 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, according to the angle of upper bright enhancement film 3, redesign again the drawing of upper bright enhancement film 3, lower bright enhancement film 4, after upper bright enhancement film 3 and lower bright enhancement film 4 being cut according to coupling angle, by normal ordinal position assembling backlight module, modulation twill finishes.
A kind of backlight module LCD8 that calculates provided by the invention mates the method for angle with bright enhancement film, discovery occurs that the critical component bright enhancement film of twill and the positive connection between LCD8 and glue frame 1 back side can ignore without barricade or wall height, and then LCD8 can be in the advantage of the glue frame 1 accessible rotation in the back side, to occur that twill reflectance coating backlight is assembled into former exiting surface, by diffusion barrier 6, upper bright enhancement film 3 and lower bright enhancement film 4 be the anti-back side that installs to glue frame 1 all, LCD8 rotates freely in this plane, whether observe twill disappears simultaneously, the LCD8 placed angle of test during without twill, again this angle and the angle of former bright enhancement film are added and subtracted mutually, can directly obtain correct bright enhancement film angle, this scheme is portable strong, can adapt to various LCD8.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. one kind is calculated backlight module bright enhancement film and mates the method for angle with LCD, described backlight module comprises diffusion barrier, lower bright enhancement film, upper bright enhancement film, shading glue, reflectance coating and for the glue frame of above-mentioned each parts is installed, 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 to the glue frame front that light guide plate is housed, the Zai Jiangjiaokuang back side keeps flat upward, successively diffusion barrier, lower bright enhancement film, upper bright enhancement film, shading glue is flattened in light guide plate along light guide plate outward flange;
LCD is fitted in the one side at the light guide plate Jiao Kuang back side, and LCD is rotated freely in the plane in light guide plate, judge whether twill disappears simultaneously;
When judgement twill disappears, test LCD and the length direction of glue frame or the angle of Width, calculate coupling angle according to angle.
2. calculating backlight module bright enhancement film according to claim 1 mates the method for angle with LCD, it is characterized in that, 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, and the angle of the length direction of the light transmission shaft of LCD and glue frame is β degree, coupling angle γ=alpha+beta.
3. calculating backlight module bright enhancement film according to claim 1 mates the method for angle with LCD, it is characterized in that, the angle of the prism angle of described bright enhancement film is α degree, the light transmission shaft of described LCD rotates in the counterclockwise direction rear interference twill and disappears, the angle of the length direction of the light transmission shaft of LCD and glue frame is β degree, coupling angle γ=alpha-beta.
4. calculating backlight module bright enhancement film according to claim 3 mates the method for angle with LCD, it is characterized in that, and when γ is negative value, coupling angle Weiγ supplementary angle.
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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 CN103513306B (en) | 2016-01-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044945A (en) * | 2015-09-01 | 2015-11-11 | 昆山龙腾光电有限公司 | Membrane angle evaluation 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 |
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| 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 |
| JP2007280961A (en) * | 2007-06-01 | 2007-10-25 | Nippon Leiz Co Ltd | Light guide plate and flat lighting system |
| 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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2012
- 2012-06-29 CN CN201210219460.4A patent/CN103513306B/en active Active
Patent Citations (5)
| 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 |
| CN101311790A (en) * | 2007-05-25 | 2008-11-26 | 星磊电子(深圳)有限公司 | Backlight product interference grain processing process |
| JP2007280961A (en) * | 2007-06-01 | 2007-10-25 | Nippon Leiz Co Ltd | Light guide plate and flat lighting system |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044945A (en) * | 2015-09-01 | 2015-11-11 | 昆山龙腾光电有限公司 | Membrane angle evaluation jig |
| 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 |
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| CN103513306B (en) | 2016-01-20 |
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Owner name: SHENZHEN BYD ELECTRONIC COMPONENT CO., LTD. Free format text: FORMER OWNER: BIYADI CO., LTD. Effective date: 20150828 |
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Effective date of registration: 20150828 Address after: 518119 Guangdong province Shenzhen City Dapeng new Kwai town Yanan Road No. 1 building experimental Byd Co Applicant after: Shenzhen BYD Electronic Component Co., Ltd. Address before: BYD 518118 Shenzhen Road, Guangdong province Pingshan New District No. 3009 Applicant before: Biyadi Co., Ltd. |
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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. |