CN202171652U - Brightness enhancing film structure - Google Patents
Brightness enhancing film structure Download PDFInfo
- Publication number
- CN202171652U CN202171652U CN201120246068XU CN201120246068U CN202171652U CN 202171652 U CN202171652 U CN 202171652U CN 201120246068X U CN201120246068X U CN 201120246068XU CN 201120246068 U CN201120246068 U CN 201120246068U CN 202171652 U CN202171652 U CN 202171652U
- Authority
- CN
- China
- Prior art keywords
- utility
- model
- brightness enhancement
- brightness enhancing
- film structure
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Optical Elements Other Than Lenses (AREA)
Abstract
The utility model provides a brightness enhancing film structure comprising: a light transmission substrate provided with a first surface and a second surface which are opposite; and a brightness enhancing layer which is fixedly arranged on the first surface of the light transmission substrate and provided with a plurality of prism parts, wherein the each prism part is extended along the first surface of the light transmission substrate, and at least two prism parts are interlaced mutually and provided with an included angle. According to the brightness enhancing film structure of the utility model, the brightness enhancing layer is provided with the plurality of prism parts, and at least two prism parts are interlaced mutually and provided with the included angle, i.e., the prism parts have an interlaced dislocation structure, thus uniformity of the light field distribution can be raised, and a brightness yield value of the brightness enhancing film structure also can be raised; at the same time, the brightness enhancing film structure also can reduce probability of occurrences of optical defects such as Newton rings or Moire patterns and so on caused by optical interferences, thus the brightness enhancing film structure can achieve the effect of cloaking or hiding the defects, and further can achieve the effects of raising optical performance and use conveniences.
Description
Technical field
The utility model is a kind of structure of reflection reducting coating; Especially refer to be used for the brightness enhancement film of its backlight module of LCD; And can avoid the regular structure of existing brightness enhancement film because of its light collecting portion; Do not cause the optical field distribution homogeneity good and optics flaw phenomenon such as Newton ring takes place easily, cause the optical appearance of product not good with use shortcoming such as inconvenience, and then make the utility model can reach the effect that promotes optical appearance and ease of use.
Background technology
General brightness enhancement film 1; See also shown in Figure 1ly, it comprises a transparent substrates 10 and a brightness enhancement layer 20, and this transparent substrates 10 has opposite first 11 and second surface 12; This brightness enhancement layer 20 is fixedly arranged on the first surface 11 of this transparent substrates 10; This brightness enhancement layer 20 is provided with a plurality of light collecting portion 21 again, and this light collecting portion 21 has diamond shaped surface, and the first surface 11 along this transparent substrates 10 between the adjacent again light collecting portion 21 extends side by side; Please consult the structure of available liquid crystal display 2 that is shown in Figure 2 again; With when this brightness enhancement film 1 apply to liquid crystal panel 16 backlight module (Back Light Unit, in the time of BLU), the light that the light source 13 of this backlight module is sent can be via LGP 14 (Light Guide Plate; LGP) guiding; And make this light can pass this diffusion sheet 15 (Diffuser), and make this light can be radial diffusion, when this light process brightness enhancement film 1; Light collecting portion 21 through this brightness enhancement film 1 its brightness enhancement layer 20 has diamond shaped surface; And can be according to taking charge of law (Snell ' s Law) like this, make the light that has only some incident angle scope could produce refraction and through this brightness enhancement film 1, all the other light then can produce total reflection and can continue to reclaim can be through till this brightness enhancement film 1 up to its incident angle; And make this brightness enhancement film 1 can restrain or dwindle the degree of divergence of this light, and then make the brightening effect of light in this brightness enhancement film 1 reachability set.
This existing brightness enhancement film; Though the brightening effect of light in the reachability set, because of between these brightness enhancement layer 20 its light collecting portion 21 with uniformly-spaced and the rule mode arranged side by side, though light angle is concentrated; But also therefore make the homogeneity of optical field distribution not good; Cause the characteristic of its optical appearance, particularly briliancy (luminance) relatively poor, thereby cause its luminance gain value of this existing brightness enhancement film lower; Again, this existing brightness enhancement film 1 also is easy to generate the Newton ring (Newton Ring) or moir (Moire pattern) phenomenon of optical interference because of the systematicness structure of light collecting portion 21, cause product the optics flaw to occur, and then cause the inconvenience and the puzzlement of use.
Therefore, how shortcoming such as above-mentioned is forgone, be the place of the technical difficulties that the utility model designer institute desire solves.
Summary of the invention
Because existing brightness enhancement film; Because of the light collecting portion of its brightness enhancement film with uniformly-spaced and regular mode arranged side by side, do not cause its optical field distribution homogeneity good and optics flaw phenomenon such as Newton ring takes place easily, cause the optical appearance of product not good with use inconvenience; Therefore the purpose of the utility model is to provide a kind of structure of reflection reducting coating; Be provided with a plurality of prism portion through its brightness enhancement layer of the utility model, and at least two prism portions being interlaced and have angle, also is the misconstruction of its prism portion interleaved of the utility model; And can promote the homogeneity of optical field distribution, and can promote its luminance gain value of the utility model; Simultaneously; The utility model also can reduce the probability that occurs optics flaws such as Newton ring or moir phenomenon because of optical interference; And make the utility model can reach the effect of coverage or hidden defects, and then make the utility model can reach the effect that promotes optical appearance and ease of use.
For reaching the above object, the utility model provides a kind of structure of reflection reducting coating, and it comprises:
One transparent substrates, this transparent substrates has opposite first and second surface;
One brightness enhancement layer, this brightness enhancement layer is fixedly arranged on the first surface of this transparent substrates, and this brightness enhancement layer is provided with a plurality of prism portion, and each prism portion extends along the first surface of this transparent substrates, and wherein at least two prism portions are interlaced and have an angle;
Be provided with a plurality of prism portion through its brightness enhancement layer of the utility model; And at least two prism portions are interlaced and have angle; Also be the misconstruction of its prism portion interleaved of the utility model, and can promote the homogeneity of optical field distribution, and can promote its luminance gain value of the utility model; Simultaneously; The utility model also can reduce the probability that occurs optics flaws such as Newton ring or moir phenomenon because of optical interference; And make the utility model can reach the effect of coverage or hidden defects, and then make the utility model can reach the effect that promotes optical appearance and ease of use.
Description of drawings
Fig. 1 is existing schematic perspective view;
Fig. 2 is the existing application synoptic diagram;
Fig. 3 is the schematic perspective view of the utility model;
Fig. 4 is the synoptic diagram of the drum die of its processing procedure use of the utility model;
Fig. 5 is the synoptic diagram of second embodiment of the utility model.
Description of reference numerals: 1-brightness enhancement film; The 10-transparent substrates; The 11-first surface; The 12-second surface; The 13-light source; The 14-LGP; The 15-diffusion sheet; The 16-liquid crystal panel; The 2-LCD; The 20-brightness enhancement layer; The 21-light collecting portion; The 3-transparent substrates; The 31-first surface; The 32-second surface; The 4-brightness enhancement layer; 41-prism portion; The 411-angle; The 5-drum die; The 51-coat of metal; 6-spiral fashion knife mark.
Embodiment
For other features of making the convenient simple and direct understanding the utility model of your auditor and advantage and the effect reached thereof can more manifest, now with the utility model conjunction with figs., detailed description as follows:
See also shown in Figure 3ly, the utility model provides a kind of structure of reflection reducting coating, and it comprises:
One transparent substrates 3, this transparent substrates 3 have opposite first 31 and second surface 32, and the material of this transparent substrates 3 can be PET (Polyethylene Terephthalate, polyethylene terephthalate);
One brightness enhancement layer 4; This brightness enhancement layer 4 is fixedly arranged on the first surface 31 of this transparent substrates 3; The material of this brightness enhancement layer 4 can be PMMA (Polymethylmethacrylate, polymethylmethacrylate), and this brightness enhancement layer 4 is provided with a plurality of prism portion 41; Each prism portion 41 extends along the first surface of this transparent substrates 3 31, and wherein at least two prism portions 41 are interlaced and have an angle 411;
Making about these brightness enhancement layer 4 its prism portions 41; At present industry use usually cylinder impression (roller imprint) with how rice transfer printing (nanoimprinting lithography) technology; Please cooperate consult shown in Figure 4; Its principle be utilize Ultraprecision Machining for example with many knife marks of shaping monocrystalline diamond cutter processing on the coat of metal 51 of drum die 5 to form the metal die; The rolling forming technology of arranging in pairs or groups is again carried out ultraviolet curing (UV curing), with the knife mark on the metal die (or claim micro structured pattern) transcription on optical element (being brightness enhancement film), and the utility model to interlock and has the prism portion 41 of angle in order can on this brightness enhancement layer 4, to form; Then on the metal die of this drum die 5, process many spiral fashion knife marks 6; And make between each spiral fashion knife mark 6 and have phase differential, can make this spiral fashion knife mark 6 present staggered misconstruction, and as shown in Figure 4; And can according to aforesaid program with the structure transcription of this spiral fashion knife mark 6 on this brightness enhancement layer 4, also can on this brightness enhancement layer 4, form and interlock and have the prism portion 41 of angle.Certainly, also can use the forming technique of other Ultraprecision Machining or equivalence,, give unnecessary details no longer in detail at this because relevant process principle and technology are and have common knowledge the knowledgeable in the affiliated technical field and know.
Please cooperate and consult Fig. 2, shown in Figure 3; When applying to the backlight module of liquid crystal panel 16, be provided with a plurality of prism portion 41 through this brightness enhancement layer 4, and at least two prism portions 41 are interlaced and have angle 411 when the utility model; It also is the misconstruction of its prism portion 41 interleaved of the utility model; And can promote the homogeneity of optical field distribution, and can promote its luminance gain value of the utility model, show that through experiment the luminance gain value of the utility model can reach 3.49-3.81; Simultaneously; The misconstruction of its prism portion 41 interleaved of the utility model also can reduce the probability that occurs optics flaws such as Newton ring or moir phenomenon because of optical interference; And make the utility model can reach the effect of coverage or hidden defects (defect hidden), and then make the utility model can reach the effect that promotes optical appearance and ease of use.
Please consult second embodiment of the utility model that is shown in Figure 5 again; Wherein at least one brightness enhancement layer 4 its prism portion 41 is wavy; Please cooperate consult shown in Figure 4; In order to make this prism portion 41 form wavy structure, level concussion motor apparatus can be set on the platform of this drum die 5 or carrying the utility model, and can make the platform of this drum die 5 or carrying the utility model carry out the level concussion; Can in transcription micro structured pattern process, make its prism portion 41 of the utility model except interlaced characteristic, still can have wavy structure; Its prism portion 41 is wavy through the utility model; And can promote the luminance gain value of the homogeneity of optical field distribution more with the raising product; Simultaneously also can avoid the incidence of optics flaw phenomenons such as optical interference and Newton ring more, and then make the utility model can have the effect that reaches better optical appearance and ease of use concurrently.
For making the utility model show its progressive and practicality more, following with one comparative analysis of existing do at present:
Prior art:
1, light collecting portion is regular structure uniformly-spaced, and the homogeneity of optical field distribution is not good, causes its luminance gain value lower.
2, cause optics flaws such as Newton ring or moir easily because of optical interference.
The utility model advantage:
1, prism portion has staggered misconstruction, and the homogeneity of optical field distribution is preferable, and the luminance gain value is higher.
2, can reduce the probability that causes optics flaws such as Newton ring or moir because of optical interference.
Claims (4)
1. structure of reflection reducting coating, it comprises:
One transparent substrates, this transparent substrates has opposite first and second surface;
One brightness enhancement layer, this brightness enhancement layer is fixedly arranged on the first surface of this transparent substrates, and this brightness enhancement layer is provided with a plurality of prism portion, and this each prism portion extends along the first surface of this transparent substrates, and wherein at least two these prism portions are interlaced and have an angle.
2. structure of reflection reducting coating as claimed in claim 1 is characterized in that, at least one described prism portion is wavy.
3. structure of reflection reducting coating as claimed in claim 1 is characterized in that, the material of described transparent substrates is a polyethylene terephthalate.
4. structure of reflection reducting coating as claimed in claim 1 is characterized in that, the material of described brightness enhancement layer is a polymethylmethacrylate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120246068XU CN202171652U (en) | 2011-07-13 | 2011-07-13 | Brightness enhancing film structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120246068XU CN202171652U (en) | 2011-07-13 | 2011-07-13 | Brightness enhancing film structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202171652U true CN202171652U (en) | 2012-03-21 |
Family
ID=45829845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120246068XU Expired - Fee Related CN202171652U (en) | 2011-07-13 | 2011-07-13 | Brightness enhancing film structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202171652U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103513303A (en) * | 2012-06-14 | 2014-01-15 | 苹果公司 | Display with rounded-tip turning films |
| CN111176013A (en) * | 2019-12-19 | 2020-05-19 | 京东方科技集团股份有限公司 | Brightness enhancement film, backlight module and display device |
-
2011
- 2011-07-13 CN CN201120246068XU patent/CN202171652U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103513303A (en) * | 2012-06-14 | 2014-01-15 | 苹果公司 | Display with rounded-tip turning films |
| CN111176013A (en) * | 2019-12-19 | 2020-05-19 | 京东方科技集团股份有限公司 | Brightness enhancement film, backlight module and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6796574B2 (en) | Optical film laminate | |
| TWI694925B (en) | Optical film,method of making structured surface and microreplication tool made using same | |
| US20120026430A1 (en) | Uniform reflective light-guide apparatus with micro-structure, and backlight module and LCD device having the same | |
| CN102588828A (en) | Panel spliced type backlight module | |
| CN101939156A (en) | Process of making mold for optical film | |
| CN101910875A (en) | Optical member | |
| CN101515048B (en) | Back light unit | |
| TW201704787A (en) | Manufacturing method of light guide plate | |
| CN102033664B (en) | Touch display device | |
| Kim et al. | Optimized pattern design of light-guide plate (LGP) | |
| CN205809486U (en) | The lens of side-light type display device and comprise the display device of these lens | |
| CN202171652U (en) | Brightness enhancing film structure | |
| WO2016070583A1 (en) | Curved display panel, curved display device, and manufacturing method therefor | |
| CN104536080A (en) | Light guide plate and display device | |
| CN203117445U (en) | Optical film brightening structure | |
| Wang et al. | Study on the optical performance of light guide plate with pyramid-shaped microstructures | |
| CN103982827A (en) | Backlight module and liquid crystal display | |
| Joo et al. | Analysis of the light-scattering power of patterned dot material printed on the light guide plate in liquid crystal display | |
| Xu et al. | Design and optimization of a partial integrated backlight module | |
| Yang et al. | Fabrication of dual brightness enhancement structures on light guide plates using UV roll-to-plate imprinting lithography | |
| CN102121666B (en) | Diffusion sheet and backlight module | |
| Kim | LGP pattern design with single LED light source | |
| CN101715565A (en) | Liquid crystal display device, area light source device, prism sheet and their manufacturing method | |
| Yeon et al. | An effective light-extracting microstructure for a single-sheet backlight unit for liquid crystal display | |
| KR20100019630A (en) | Method of manufacturing a large scale nano pattern of lgp using photoresist process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120321 Termination date: 20200713 |