CN210222283U - Microlens brightness enhancement film, backlight module, liquid crystal display screen and television - Google Patents
Microlens brightness enhancement film, backlight module, liquid crystal display screen and television Download PDFInfo
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- CN210222283U CN210222283U CN201921207393.8U CN201921207393U CN210222283U CN 210222283 U CN210222283 U CN 210222283U CN 201921207393 U CN201921207393 U CN 201921207393U CN 210222283 U CN210222283 U CN 210222283U
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Abstract
The utility model discloses a microlens brightness enhancement film, backlight unit, liquid crystal display and TV, wherein, the microlens brightness enhancement film includes transparent substrate, a plurality of microlens structures have been laid at random to the transparent substrate upside, transparent substrate's downside is provided with prevents the adsorption coating. The utility model discloses reduce the probability that uses microlens brightness enhancement piece to produce mole interference fringe at present, reduce and increase extra cost in order to improve mole interference fringe.
Description
Technical Field
The utility model relates to a display screen technical field especially relates to a microlens brightness enhancement piece, backlight unit, liquid crystal display and TV.
Background
At present, the backlight module such as the existing display screen includes optical components such as a reflective sheet, a light guide plate, a diffuser plate, a brightness enhancement sheet, and a diffuser sheet, wherein the common brightness enhancement sheet includes a microlens brightness enhancement sheet (microlens), a prism brightness enhancement sheet, and a reflective polarizer (DBEF), and the commonly used microlens and prism sheet are mostly used, wherein the microlens has the characteristics of good viewing angle, excellent brightness performance, and the like, but the microlens is easily optically interfered with other optical components to generate moire fringes.
The moire phenomenon is a visual phenomenon, which is actually a phenomenon generated by a principle of a result of superposition of peaks of two sine waves, that is, a waveform interference phenomenon occurs between different objects. The respective structures of the two objects are regular, and when the two objects are mutually overlapped, the phenomenon of molar interference is very easy to generate; when the structures of the two objects are vertical strips or oblique structures, oblique or vertical moire patterns may be generated. Microlenses of the currently used Microlens surface coatings on the market are regularly arranged, four adjacent nearest microlenses of the microlenses are in a prismatic structure and are equal in distance to the adjacent microlenses, although the distances between the ML microlenses and the heights of different manufacturers are different, the microlenses are regularly arranged, and the microlenses can be connected into a straight line, so that molar interference with other components with regular structures is easy to occur.
Accordingly, the prior art is yet to be improved and developed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a microlens brightness enhancement film, backlight unit, liquid crystal display and TV, aim at solving current microlens brightness enhancement film and take place optics easily with other optical component and interfere and produce the problem that mole interfered.
The utility model provides a technical scheme that technical problem adopted as follows:
the microlens brightening sheet comprises a transparent substrate, wherein a plurality of microlens structures are randomly distributed on the upper side of the transparent substrate, and an anti-adsorption coating is arranged on the lower side of the transparent substrate.
The microlens intensifying sheet also comprises a microlens coating coated on the transparent substrate, and the microlens coating and the microlens structure are integrally arranged.
The microlens brightness enhancement sheet is characterized in that four adjacent microlens structures form an irregular quadrangle, and the distances between the adjacent microlens structures are unequal.
The microlens brightness enhancement film is characterized in that the distance between adjacent microlens structures is 30-60 um.
The microlens brightness enhancement film is characterized in that the height of the microlens structure is 5-30 um.
The microlens brightening sheet is characterized in that the transparent substrate is made of PET.
The microlens brightening sheet is characterized in that the microlens coating is a UV adhesive layer.
A backlight module comprises a brightness enhancement film, wherein the brightness enhancement film is the micro-lens brightness enhancement film.
A liquid crystal display screen comprises the backlight module.
A television comprising a liquid crystal display as described above.
Has the advantages that: the utility model provides a microlens brightness enhancement film, through the microlens structure that sets up random irregular distribution on the transparent substrate surface, not only changed the characteristic that the microstructure regularity of traditional microlens brightness enhancement film distributes, let the product differentiation, reduce the probability that present use microlens brightness enhancement film produced mole interference fringe, reduce to increase extra cost for improving mole interference fringe, solved current microlens brightness enhancement film and take place optical interference and produce the problem that mole interfered with other optical component easily.
Drawings
Fig. 1 is a schematic structural view of a microlens sheet according to some embodiments of the present invention;
fig. 2 is a top view of a microlens intensifying sheet according to some embodiments of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Microlens brightness enhancement film, as shown in fig. 1 ~ 2, microlens brightness enhancement film, wherein, including transparent substrate 10, a plurality of microlens structures 20 have been laid at random to transparent substrate 10 upside, transparent substrate 10's downside is provided with prevents adsorption coating 30. Be different from regular evenly distributed of microlens structure, four two liang of adjacent microlenses of current microlens brightness enhancement piece become equilateral quadrilateral's distribution characteristics, the utility model discloses in design microlens structure 20 for random irregular evenly distributed, not only utilized microlens structure 20 to carry out the brightness enhancement effect to the refraction characteristic of light like this, and simultaneously, because microlens structure 20's irregularity, random distribution has avoided microlens brightness enhancement piece to interfere with the mole of other parts that have the microstructure, reduced backlight unit and used microlens brightness enhancement piece the probability that the mole interference stripe appears, can improve backlight unit's development efficiency, correspondingly, also reduced development cost.
In some embodiments of the present invention, the microlens sheet further includes a microlens coating 40 coated on the transparent substrate 10, the microlens structure 20 is formed by the microlens coating 40, in other words, the microlens structure 20 is integrated with the microlens coating 40, that is, the microlens structure 20 is formed at a corresponding position according to the requirement of the layout site of the microlens structure 20 while the microlens coating 40 is coated on the transparent substrate 10. Set up through the mode microlens structure 20 not only can make a plurality of microlens structures 20 all form a whole with microlens coating 40 and make whole device more firm, simultaneously, also saved alone, set up the loaded down with trivial details process step of microlens structure 20 one by one, also promoted development, the design efficiency of product promptly.
In some embodiments of the present invention, the microlens coating 40 is a UV glue layer, and in particular, the microlens coating 40 is an optical-grade UV glue layer.
In some embodiments of the present invention, in the microlens brightening sheet, four microlens structures 20 adjacent to each other in pairs form an irregular quadrilateral, specifically, a central point connecting line of four microlens structures 20 adjacent to each other in pairs can form a random and irregular quadrilateral structure, so as to eliminate the reason for molar interference and avoid the generation of molar interference from the source; in some embodiments of the present invention, the distance between the adjacent microlens structures 20 is not equal to each other (the distance between the central points is not equal to each other), and the microlens structures 20 which are continuously more than three are not connected into a straight line, forming a random distribution which is staggered, enhancing the random and irregular distribution, and further preventing the possibility of the generation of interference fringes.
The utility model discloses in some embodiments, will microlens brightness enhancement piece in adjacent microlens structure 20 apart from the control between 30 ~ 60um, the distance is too big then can influence the brightness enhancement effect because the density of arranging of microlens structure is big enough, and the distance undersize then makes each microlens structure take place light interference each other easily.
The utility model discloses in some embodiments, microlens structure 20 in the microlens piece highly set up to 5 ~ 30um, compress thickness as far as possible under the prerequisite that the protection microlens can realize the effect of intensifying through the refraction to realize ultra-thin effect.
In some embodiments of the present invention, the microlens brightness enhancement sheet in, transparent substrate 10's material is transparent resin materials such as PET, and is not only low in cost, and its surface is level and smooth and glossy, and creep resistance, fatigue resistance, antifriction are good, wearing and tearing are little and hardness is high, have the biggest toughness among the thermoplastic plastics simultaneously, in addition, electric insulation can be good, receive that the temperature influence is little, nontoxic, weatherability, anti chemical stability is good, the hygroscopicity is high, weak acid and organic solvent resistant.
Based on above-mentioned microlens piece, the utility model discloses an embodiment still provides a backlight unit, including the piece that adds lustre to, wherein, the piece that adds lustre to is as above microlens piece that adds lustre to. The utility model discloses in some embodiments, backlight unit specifically includes liquid crystal display panel, structural component, electronic light strip part and optical component, optical component specifically includes reflector plate, light guide plate, first diffuser plate, the piece of adding lustre to and the second diffusion piece that sets gradually from bottom to top, the piece of adding lustre to adopts as above microlens piece of adding lustre to.
Based on above-mentioned backlight unit, the utility model discloses an embodiment still provides a liquid crystal display, wherein, including as above backlight unit.
Based on above-mentioned liquid crystal display, the utility model discloses an embodiment still provides a TV, wherein, including as above liquid crystal display.
Technical details and advantages of the backlight module, the liquid crystal display and the television are described in detail in the microlens brightening sheet, and are not described herein again.
To sum up, the utility model provides a microlens brightness enhancement film through the microlens structure that sets up random irregular distribution on the transparent substrate surface, has not only changed the characteristic that the microstructure rule of traditional microlens brightness enhancement film distributes, lets the product differentiation, reduces the probability that present use microlens brightness enhancement film produced mole interference fringe, reduces to increase extra cost for improving mole interference fringe, has solved current microlens brightness enhancement film and has taken place optical interference and produce the problem that mole interfered with other optical component easily.
It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. The microlens brightening sheet is characterized by comprising a transparent substrate, wherein a plurality of microlens structures are randomly distributed on the upper side of the transparent substrate, and an anti-adsorption coating is arranged on the lower side of the transparent substrate.
2. The microlens as in claim 1, further comprising a microlens coating applied on the transparent substrate, the microlens coating being integral with the microlens structure.
3. The microlens brightening plate of claim 1, wherein four adjacent microlens structures in pairs form an irregular quadrilateral, and the distances between the adjacent microlens structures are not equal.
4. The microlens brightening plate of claim 1, wherein the distance between adjacent microlens structures is 30-60 um.
5. The microlens brightening plate of claim 4, wherein the height of the microlens structure is 5-30 um.
6. The microlens brightening sheet of claim 1, wherein the transparent substrate is made of PET.
7. The microlens brightening sheet of claim 2, wherein the microlens coating is a UV glue layer.
8. A backlight module comprises a brightness enhancement film, and is characterized in that the brightness enhancement film is the microlens brightness enhancement film as claimed in any one of claims 1 to 6.
9. A liquid crystal display panel comprising the direct type backlight module according to claim 8.
10. A television comprising the liquid crystal display of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921207393.8U CN210222283U (en) | 2019-07-26 | 2019-07-26 | Microlens brightness enhancement film, backlight module, liquid crystal display screen and television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921207393.8U CN210222283U (en) | 2019-07-26 | 2019-07-26 | Microlens brightness enhancement film, backlight module, liquid crystal display screen and television |
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| Publication Number | Publication Date |
|---|---|
| CN210222283U true CN210222283U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921207393.8U Active CN210222283U (en) | 2019-07-26 | 2019-07-26 | Microlens brightness enhancement film, backlight module, liquid crystal display screen and television |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114114509A (en) * | 2020-08-31 | 2022-03-01 | 宁波激智科技股份有限公司 | Polarization-maintaining optical film, interference-relieving polarization-maintaining micro-lens film and preparation method thereof |
| CN114114507A (en) * | 2020-08-31 | 2022-03-01 | 宁波激智科技股份有限公司 | Polarization-maintaining optical film, interference-relieving polarization-maintaining micro-lens film and preparation method thereof |
-
2019
- 2019-07-26 CN CN201921207393.8U patent/CN210222283U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114114509A (en) * | 2020-08-31 | 2022-03-01 | 宁波激智科技股份有限公司 | Polarization-maintaining optical film, interference-relieving polarization-maintaining micro-lens film and preparation method thereof |
| CN114114507A (en) * | 2020-08-31 | 2022-03-01 | 宁波激智科技股份有限公司 | Polarization-maintaining optical film, interference-relieving polarization-maintaining micro-lens film and preparation method thereof |
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