CN101271222A - Three-layer combined optical film piece - Google Patents
Three-layer combined optical film piece Download PDFInfo
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- CN101271222A CN101271222A CNA2007101915510A CN200710191551A CN101271222A CN 101271222 A CN101271222 A CN 101271222A CN A2007101915510 A CNA2007101915510 A CN A2007101915510A CN 200710191551 A CN200710191551 A CN 200710191551A CN 101271222 A CN101271222 A CN 101271222A
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- blooming lamella
- layer
- sided
- blooming
- optical film
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Abstract
The invention discloses a composite optical membrane which comprises protecting films, optical membrane layers and a shading double-side adhesive tape layer, and the surrounding of the shading double-side adhesive tape layer is an annular stickiness part with the middle forming a transparent part. The invention is characterized in that: the hierarchical structure of the composite optical membrane consists of a first protecting film, the shading double-side adhesive tape layer, a first optical membrane layer, a second optical membrane layer and a second protecting film which are orderly overlapped. The first optical membrane layer is larger than the transparent part but less than the second optical membrane layer; and the surrounding is jointed with the stickiness part. The second optical membrane layer is less than the shading double-side adhesive tape layer, and the surrounding part of the second optical membrane layer exceeding the first optical membrane layer is jointed with the stickiness part of the shading double-side adhesive tape layer. The invention uses the stickiness of the shading double-side adhesive tape layer to directly compound each layer of membrane together by an automatic processing device, which is different from prior complex production process, ensures the more reliable performance of a backlight module and improves the production efficiency.
Description
Technical field
The present invention relates to a kind of optical element combination, be specifically related to a kind of member of the module backlight that uses in LCD etc., i.e. combined optical film piece.
Background technology
Along with socioeconomic growing, digitization tools such as computing machine, mobile phone, digital camera, video camera are used more widely, these digitization tools are operated to the user for more convenient, be typically equipped with display screen, make that man-machine communication is simpler, bring more facility for user's operation.In recent years, most computing machine, mobile phone, digital camera, the display screen of digitization tools such as video camera all adopts liquid crystal display (Liquid Crystal Display, LCD) panel, then, because display panels itself does not have luminous function, so a module backlight (back light module) must be provided below display panels, to provide liquid crystal panel required area source, make it to obtain enough brightness and contrast, and then the function of realization demonstration, therefore, the quality of module backlight is the quality of liquid crystal pictorial display directly, is one of most important parts in the liquid crystal display.
The main composition parts of module backlight comprise: light source (Light source), light guide plate (Light guideplate) and some blooming pieces, and as diffuser plate (diffuser), prismatic lens (BEF), reflecting plate (reflector) etc.Light source is used for providing light source for module backlight; Light guide plate can be with the light scattering in addition from its light source, to provide liquid crystal panel more homodisperse light; On light guide plate, can be equipped with the plural layer optical thin film usually, from bottom to top put, be used for increasing the light uniformity coefficient and the briliancy of liquid crystal display product integral body with the order of for example descending diffusion sheet, time brightening piece, last brightening piece, last diffusion sheet; Also can comprise prismatic lens in the optical thin film, utilize the scattered through angles principle that integral body module brightness backlight is improved, and astigmatic angle is dwindled.
In the prior art, above-mentioned optical thin film all is that individual provides, when assembling module backlight, with the manual mode required optical thin film that above light guide plate, is sticked from level to level, at outermost layer shading double faced adhesive tape (being called black and white film again) is set at last, optical thin film wherein can be prismatic lens, diffusion sheet, brightening piece etc., can not leave the space between each layer.Backlight with 2.8 inches TFT is example, the where the shoe pinches of technology is the applying of positive four films, press the order of diffusion sheet, time prismatic lens, last prismatic lens, black and white film, the operator needs to attach from level to level, just might not cause four diaphragms to scrap together if any a slice applying is good, cause great waste and loss thus.
Therefore, how to simplify production operation, reduce the fraction defective of product, enhance productivity, become an interior urgency of industry problem to be solved.
Summary of the invention
The object of the invention provides the combined optical film piece that uses in a kind of module backlight, to reduce the fraction defective of product, enhances productivity.
For achieving the above object; the technical scheme that the present invention can adopt is: a kind of three-layer combined optical film piece; comprise diaphragm; blooming lamella and shading layers of two-sided; described shading layers of two-sided periphery is the gluing portion of annular; middle formation transmittance section; its hierarchical structure is; by first diaphragm; the shading layers of two-sided; the first blooming lamella; the superimposed successively formation of the second blooming lamella and second diaphragm; the described first blooming lamella is greater than the transmittance section but less than the second blooming lamella; a peripheral and gluing applying; the described second blooming lamella is less than the shading layers of two-sided, and its periphery exceeds the part of the first blooming lamella and gluing applying of shading double faced adhesive tape.
In the technique scheme; because shading layers of two-sided toughness; utilize automatically processing device; shading layers of two-sided and the first blooming lamella and the second blooming lamella trilamellar membrane sheet is compound; be provided with protective film respectively in addition in the shading layers of two-sided and the second blooming lamella outside; above-mentioned each layer directly is combined with each other in process, and avoided needs each layer cut respectively in process in the past, then the trouble of fitting from level to level.
In the technique scheme, the left and right side of described shading layers of two-sided is provided with the projection that outside extension forms, and constitutes the glue-line location division.
The described first blooming lamella left and right side limit is provided with the projection that outside extension forms, and constitutes first location division.
The described second blooming lamella left and right side limit is provided with the projection that outside extension forms, and constitutes second location division.
In the technique scheme, the described first blooming lamella is selected from diffusion sheet or prismatic lens.The described second blooming lamella is selected from diffusion sheet or prismatic lens.
Combined optical film piece of the present invention is used according to concrete product can different settings, and promptly the first blooming lamella can have different combinations with the second blooming lamella.Common severally specifically consist of:
1. skin is first diaphragm, inwardly is that shading layers of two-sided, the first middle blooming lamella are diffusion sheet successively, and the second blooming lamella is a prismatic lens, is second diaphragm at last.
2. first diaphragm, the shading layers of two-sided, the first middle blooming lamella is a prismatic lens, the second blooming lamella is a prismatic lens, second diaphragm.
3. first diaphragm, the shading layers of two-sided, the first blooming lamella is a diffusion sheet, the second blooming lamella is a diffusion sheet, second diaphragm.
4. first diaphragm, the shading layers of two-sided, the first blooming lamella is a prismatic lens, the second blooming lamella is a diffusion sheet, second diaphragm.
Because the technique scheme utilization, the present invention compared with prior art has following advantage:
1. the present invention utilizes the viscosity of shading layers of two-sided to add whole use the after automatically processing device is with the moulding of three diaphragm Compound Machining, cut with adding in the past the diaphragm slices to be processed respectively man-hour, the manual manipulation method of attaching is from level to level compared again, adopt compound film sheet of the present invention to make production operation convenient, reduce the fraction defective of product, made the of fine qualities of module backlight stablize.
2. the present invention is by changing the size of blooming lamella, it is bigger that the blooming lamella of identical size in the prior art is changed into the second blooming lamella, and the first blooming lamella that is clipped between the shading layers of two-sided and the second blooming lamella is less, thereby can utilize the viscosity of shading layers of two-sided to make three interlayers effectively compound.
3. the material that shading layers of two-sided, the first blooming lamella and the second blooming lamella in inventing adopted is material common on the market, utilize the viscosity and the robotization work flow of shading layers of two-sided that trilaminate material directly is combined with each other, avoid being easy to generate in the former operating process diaphragm and fitted bad and cause the problem of scrapping, saved material greatly.
Description of drawings
Fig. 1 is the synoptic diagram of the first blooming lamella in the embodiment of the invention one;
Fig. 2 is the synoptic diagram of the second blooming lamella in the embodiment of the invention one;
Fig. 3 is the structural representation of the embodiment of the invention one;
Fig. 4 removes structural representation behind the second blooming lamella in the embodiment of the invention one;
Fig. 5 removes structural representation behind the first blooming lamella in the embodiment of the invention one;
Fig. 6 is A-A place cross-sectional schematic among Fig. 3 (thickness direction amplifies signal).
Wherein: 1, shading layers of two-sided; 2, the first blooming lamella; 3, the second blooming lamella; 4, location division; 5, transmittance section; 6, diaphragm.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described:
Embodiment one: referring to accompanying drawing 1 to shown in the accompanying drawing 6; a kind of three-layer combined optical film piece; comprise two-layer blooming lamella; two-layer diaphragm 6 and shading layers of two-sided 1; described combined optical film piece ecto-entad is by first diaphragm; the shading layers of two-sided; the first blooming lamella 2; the second blooming lamella 3 and second diaphragm stack gradually formation; be provided with transmittance section 5 in the middle of the described shading layers of two-sided; the described first blooming lamella is greater than the transmittance section but less than the second blooming lamella, and the described second blooming lamella is greater than the first blooming lamella but less than the shading layers of two-sided.
In the process, original three diaphragms that separate are combined with each other by automation equipment, compound precision is ± 0.2mm.Wherein the first blooming lamella is a diffusion sheet, and the second blooming lamella is a prismatic lens.The combined optical film piece of present embodiment goes for 1.0 inches to 7.0 inches module backlight.
Embodiment two: a kind of three-layer combined optical film piece, comprise two-layer blooming lamella, two-layer diaphragm and shading layers of two-sided, and the first blooming lamella is a prismatic lens, the second blooming lamella is a prismatic lens.The combined optical film piece ecto-entad is that first diaphragm, shading layers of two-sided, prismatic lens, prismatic lens and second diaphragm stack gradually formation; offer the transmittance section in the middle of the described shading layers of two-sided; the described first blooming lamella is greater than the transmittance section but less than the second blooming lamella, and the described second blooming lamella is greater than the first blooming lamella but less than the shading layers of two-sided.
Embodiment three: structure is similar to embodiment one, and wherein the first blooming lamella is a diffusion sheet, and the second blooming lamella is a diffusion sheet.
Embodiment three: structure is similar to embodiment one, and wherein the first blooming lamella is a prismatic lens, and the second blooming lamella is a diffusion sheet.
Claims (6)
1. three-layer combined optical film piece; comprise diaphragm (6); blooming lamella and shading layers of two-sided (1); described shading layers of two-sided periphery is the gluing portion of annular; middle formation transmittance section; it is characterized in that: its hierarchical structure is; by first diaphragm; the shading layers of two-sided; the first blooming lamella (2); the second blooming lamella (3) and the superimposed successively formation of second diaphragm; the described first blooming lamella is greater than the transmittance section but less than the second blooming lamella; a peripheral and gluing applying; the described second blooming lamella is less than the shading layers of two-sided, and its periphery exceeds the part of the first blooming lamella and gluing applying of shading double faced adhesive tape.
2. combined optical film piece according to claim 1 is characterized in that: the left and right side of described shading layers of two-sided is provided with the projection that outside extension forms, and constitutes glue-line location division (4).
3. combined optical film piece according to claim 1 is characterized in that: the described first blooming lamella left and right side limit is provided with the projection that outside extension forms, and constitutes first location division.
4. combined optical film piece according to claim 1 is characterized in that: the described second blooming lamella left and right side limit is provided with the projection that outside extension forms, and constitutes second location division.
5. combined optical film piece according to claim 1 is characterized in that: the described first blooming lamella is selected from diffusion sheet or prismatic lens.
6. combined optical film piece according to claim 1 is characterized in that: the described second blooming lamella is selected from diffusion sheet or prismatic lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101915510A CN100561314C (en) | 2007-12-10 | 2007-12-10 | A kind of three-layer combined optical film piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101915510A CN100561314C (en) | 2007-12-10 | 2007-12-10 | A kind of three-layer combined optical film piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101271222A true CN101271222A (en) | 2008-09-24 |
| CN100561314C CN100561314C (en) | 2009-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101915510A Expired - Fee Related CN100561314C (en) | 2007-12-10 | 2007-12-10 | A kind of three-layer combined optical film piece |
Country Status (1)
| Country | Link |
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| CN (1) | CN100561314C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930137A (en) * | 2009-06-24 | 2010-12-29 | 乐金显示有限公司 | Liquid crystal display device |
| CN103032779A (en) * | 2012-11-08 | 2013-04-10 | 友达光电股份有限公司 | Display device and backlight module thereof |
| CN104459842A (en) * | 2014-10-30 | 2015-03-25 | 孟凡伟 | Optical composite membrane and manufacturing method of optical composite membrane |
| CN104570476A (en) * | 2014-12-24 | 2015-04-29 | 深圳市华星光电技术有限公司 | Liquid crystal panel, backlight module positioning adhesive structure and display |
| CN104678481A (en) * | 2014-12-31 | 2015-06-03 | 苏州通尔泰新材料科技有限公司 | Edge occlusion-packaged light guide film and processing die and processing method thereof |
| CN106970488A (en) * | 2017-05-04 | 2017-07-21 | 深圳市华星光电技术有限公司 | A kind of optical film assembly, backlight module and display device |
| CN107065303A (en) * | 2017-05-05 | 2017-08-18 | 武汉华星光电技术有限公司 | Mouth word glue and backlight assembly |
| CN107422400A (en) * | 2017-08-14 | 2017-12-01 | 信利半导体有限公司 | A kind of method for die cutting of diaphragm integration |
-
2007
- 2007-12-10 CN CNB2007101915510A patent/CN100561314C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930137A (en) * | 2009-06-24 | 2010-12-29 | 乐金显示有限公司 | Liquid crystal display device |
| CN101930137B (en) * | 2009-06-24 | 2014-03-26 | 乐金显示有限公司 | Liquid crystal display device |
| CN103032779A (en) * | 2012-11-08 | 2013-04-10 | 友达光电股份有限公司 | Display device and backlight module thereof |
| CN104459842A (en) * | 2014-10-30 | 2015-03-25 | 孟凡伟 | Optical composite membrane and manufacturing method of optical composite membrane |
| WO2016101372A1 (en) * | 2014-12-24 | 2016-06-30 | 深圳市华星光电技术有限公司 | Liquid crystal panel, backlight module positioning adhesive structure and display |
| CN104570476A (en) * | 2014-12-24 | 2015-04-29 | 深圳市华星光电技术有限公司 | Liquid crystal panel, backlight module positioning adhesive structure and display |
| CN104570476B (en) * | 2014-12-24 | 2017-06-16 | 深圳市华星光电技术有限公司 | Liquid crystal panel positions plastic structure and display with backlight module |
| GB2549636A (en) * | 2014-12-24 | 2017-10-25 | Shenzhen China Star Optoelect | Liquid crystal panel, backlight module positioning adhesive structure and display |
| GB2549636B (en) * | 2014-12-24 | 2021-01-27 | Shenzhen China Star Optoelect | Liquid crystal panel, backlight module positioning adhesive structure and display |
| CN104678481A (en) * | 2014-12-31 | 2015-06-03 | 苏州通尔泰新材料科技有限公司 | Edge occlusion-packaged light guide film and processing die and processing method thereof |
| CN106970488A (en) * | 2017-05-04 | 2017-07-21 | 深圳市华星光电技术有限公司 | A kind of optical film assembly, backlight module and display device |
| CN107065303A (en) * | 2017-05-05 | 2017-08-18 | 武汉华星光电技术有限公司 | Mouth word glue and backlight assembly |
| CN107422400A (en) * | 2017-08-14 | 2017-12-01 | 信利半导体有限公司 | A kind of method for die cutting of diaphragm integration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100561314C (en) | 2009-11-18 |
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