CN204439873U - A kind of hot-pressing light guide plate - Google Patents
A kind of hot-pressing light guide plate Download PDFInfo
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- CN204439873U CN204439873U CN201520090833.1U CN201520090833U CN204439873U CN 204439873 U CN204439873 U CN 204439873U CN 201520090833 U CN201520090833 U CN 201520090833U CN 204439873 U CN204439873 U CN 204439873U
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Abstract
The utility model discloses a kind of hot-pressing light guide plate, it comprises hot-pressing light guide plate surface and the hot-pressing light guide plate back side, described hot-pressing light guide plate surface is provided with some equal-sized sites, and described site is V-type groove, and described V-type groove is absorbed in described hot-pressing light guide plate surface.Hot-pressing light guide plate of the present utility model is the light guide plate of a kind of surface with microstructure, its have ultra-thin superbright, guide-lighting evenly, energy-conserving and environment-protective, no dark space, the advantage such as installation and maintenance simple and fast, and this hot-pressing light guide plate site size is 50-70 μm, fundamentally can solves diaphragm and reduce the site visual phenomena occurred.
Description
Technical field
The utility model belongs to electronic display unit field, is specifically related to a kind of hot-pressing light guide plate.
Background technology
Light guide plate utilizes the method for ejection formation that selected material is pressed into ganoid plate, then on acrylic flat board, high reflectance is utilized and the material of not extinction, stamp circular or square diffusion point or groove structure at bottom surface of light guide plate screen painting, carry out diffusing light with this.When light is to diffusion point or groove structure, can to all directions reflection, conditioned reflex is destroyed, and light is penetrated by light guide plate front.For making uniformly light-emitting, the surface micro-structure (density is different or guarantee light not of uniform size is roughly the same to all directions reflection probability) that various density must be utilized different, not of uniform size.
The making of light guide plate is divided into printing and non-printing mode, mode many employings mode of printing of traditional fabrication light guide plate, namely the printing material containing high divergent light source material (as SiO2 and TIO2) is utilized, suitable is distributed in blank bottom surface of light guide plate, by printing material, light source is absorbed in the character of diffusion releasing, destroy the internal communication that causes of total reflection effect, change light path, light source is directed to and sends from opposite side and to be uniformly distributed in luminous zone.
Traditional printing light guide plate principle needs carry out with ink the light that scattering LED sends, thus line source is become area source, light source is provided to display, light guide plate mesh point design causes net-pont design can not be too little due to processing procedure restriction, for the Hotspot firefly problem that industry is comparatively general, the visual problem in site, not easily captures improvement; Traditional handicraft processing procedure, ink is a kind of mixed solvent, by IR bake oven bake, ink solidification at LGP on the surface, but owing to being mixed solvent, along with the time is elongated, ink can slowly volatilize, and cause site more and more less, processing procedure has fluctuation, thus has impact to optics.
Now along with the development of electronic product, display is more and more frivolous, reduce the trend that diaphragm is light guide plate development from now on, the minimum diameter of the existing minimum site of printing light guide plate conventional is in the art 0.25mm, cannot meet the requirement of existing ultrathin display in the market.
Utility model content
For solving the problems of the technologies described above, the purpose of this utility model be to provide a kind of ultra-thin superbright, guide-lighting evenly, energy-conserving and environment-protective, no dark space hot-pressing light guide plate.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of hot-pressing light guide plate, it comprises hot-pressing light guide plate surface and the hot-pressing light guide plate back side, and described hot-pressing light guide plate surface is provided with some equal-sized sites, and described site is V-type groove, and described V-type groove is absorbed in described hot-pressing light guide plate surface.
In a preferred embodiment of the present utility model, preferably, the external diameter of described V-type groove is 50-70 μm.
In a preferred embodiment of the present invention, preferably, described V-type groove comprises bottom portion of groove and slot opening, and described bottom portion of groove is all arranged in same level, and described slot opening is all arranged in same level.
In a preferred embodiment of the present invention, preferably, the distance between described V-type groove is unequal.
In a preferred embodiment of the present invention, preferably, formed trapezoidal between described V-type groove, described V-type groove is single individuality, not overlapping between described V-type groove.
In a preferred embodiment of the present invention, preferably, the described hot-pressing light guide plate back side is smooth flat.
In a preferred embodiment of the present invention, preferably, described hot-pressing light guide plate is high transparency acrylic board or the polycarbonate plate of polymethylmethacrylate material.
In a preferred embodiment of the present invention, preferably, the thickness of described hot-pressing light guide plate is 0.3-3.0mm.
The beneficial effects of the utility model are:
One, hot-pressing light guide plate of the present utility model are the light guide plate of a kind of surface with microstructure, its have ultra-thin superbright, guide-lighting evenly, energy-conserving and environment-protective, no dark space, the advantage such as installation and maintenance simple and fast, and this hot-pressing light guide plate site size is 50-70 μm, fundamentally can solves diaphragm and reduce the site visual phenomena occurred.
Two, hot-pressing light guide plate of the present utility model forms light guide plate mesh point by expanded metal lath point impression, and site is in the same size, and site can not be caused to diminish, and processing procedure does not fluctuate substantially, and optical effect is very little.
Three, the production cost of hot-pressing light guide plate of the present utility model is less, and it adopts heat pressing process processing procedure, and heat pressing process is without the need to mould, and by this explained hereafter large-size light-conducting plate, production capacity is high.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment technology, be briefly described to the accompanying drawing used required in the description of embodiment technology below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structure side view of the utility model hot-pressing light guide plate.
Fig. 2 is the process schematic representation that the utility model produces hot-pressing light guide plate.
Wherein, 1-hot-pressing light guide plate surface, 11-V type groove, the 2-hot-pressing light guide plate back side.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment 1
As shown in Figure 1, disclose a kind of hot-pressing light guide plate in the present embodiment, it comprises hot-pressing light guide plate surface 1 and the hot-pressing light guide plate back side 2, and the above-mentioned hot-pressing light guide plate back side 2 is smooth flat; Above-mentioned hot-pressing light guide plate surface is provided with some equal-sized sites, and above-mentioned site is V-type groove, and above-mentioned V-type groove is absorbed in above-mentioned hot-pressing light guide plate surface.
In the present embodiment, the external diameter of above-mentioned V-type groove is 50 μm, and namely the size of site is 50 μm; Above-mentioned V-type groove comprises bottom portion of groove and slot opening, and above-mentioned bottom portion of groove is all arranged in same level, and above-mentioned slot opening is all arranged in same level.
Because hot-pressing light guide plate is a plate profile structure, V-type groove is actually the surface being opened in light guide plate, therefore, the cell wall between in fact above-mentioned V-type groove does not link together, therefore, trapezium structure between above-mentioned V-type groove, the i.e. microstructure of crater shape, and density between above-mentioned V-type groove is different, the distance namely between groove is not etc., and be single individuality between above-mentioned V-type groove, not overlapping between them.
In the present embodiment, above-mentioned hot-pressing light guide plate is the high transparency acrylic board of polymethylmethacrylate material, and its thickness is 0.3-3.0mm.
Embodiment 2
As shown in Figure 1, disclose a kind of hot-pressing light guide plate in the present embodiment, it comprises hot-pressing light guide plate surface 1 and the hot-pressing light guide plate back side 2, and the above-mentioned hot-pressing light guide plate back side 2 is smooth flat; Above-mentioned hot-pressing light guide plate surface is provided with some equal-sized sites, and above-mentioned site is V-type groove, and above-mentioned V-type groove is absorbed in above-mentioned hot-pressing light guide plate surface.
In the present embodiment, the external diameter of above-mentioned V-type groove is 70 μm, and namely the size of site is 70 μm μm; Above-mentioned V-type groove 11 comprises bottom portion of groove and slot opening, and above-mentioned bottom portion of groove is all arranged in same level, and above-mentioned slot opening is all arranged in same level.
Because hot-pressing light guide plate is a plate profile structure, V-type groove is actually the surface being opened in light guide plate, therefore, the cell wall between in fact above-mentioned V-type groove does not link together, therefore, trapezium structure between above-mentioned V-type groove, the i.e. microstructure of crater shape, and density between above-mentioned V-type groove is different, the distance namely between groove is not etc., and be single individuality between above-mentioned V-type groove, not overlapping between them.
In the present embodiment, above-mentioned hot-pressing light guide plate is polycarbonate plate, and its thickness is 0.3-3.0mm, and the hot-pressing light guide plate therefore in the present embodiment goes for the development and application of the thin light guide panel of 0.3-3.0mm.
Embodiment 3
As shown in Figure 1, disclose a kind of hot-pressing light guide plate in the present embodiment, it comprises hot-pressing light guide plate surface 1 and the hot-pressing light guide plate back side 2, and the above-mentioned hot-pressing light guide plate back side 2 is smooth flat; Above-mentioned hot-pressing light guide plate surface is provided with some equal-sized sites, and above-mentioned site is V-type groove, and above-mentioned V-type groove is absorbed in above-mentioned hot-pressing light guide plate surface.
In the present embodiment, the external diameter of above-mentioned V-type groove is 60 μm, and namely the size of site is 60 μm; Above-mentioned V-type groove 11 comprises bottom portion of groove and slot opening, and above-mentioned bottom portion of groove is all arranged in same level, and above-mentioned slot opening is all arranged in same level.
Because hot-pressing light guide plate is a plate profile structure, V-type groove is actually the surface being opened in light guide plate, therefore, the cell wall between in fact above-mentioned V-type groove does not link together, therefore, trapezium structure between above-mentioned V-type groove, the i.e. microstructure of crater shape, and density between above-mentioned V-type groove is different, the distance namely between groove is not etc., and be single individuality between above-mentioned V-type groove, not overlapping between them.
In the present embodiment, above-mentioned hot-pressing light guide plate is the high transparency acrylic board of polymethylmethacrylate material, and its thickness is 0.3-3.0mm, and the hot-pressing light guide plate therefore in the present embodiment goes for the development and application of the thin light guide panel of 0.3-3.0mm.
The technological principle of hot-pressing light guide plate of the present utility model is: adopt hot pressing mode, miniature optical design is accurately stamped in from pressing mold (Stamper) the surface of optics sheet material (PMMA/PC), and make it to become the light guide plate of surface with microstructure, have ultra-thin superbright, guide-lighting evenly, energy-conserving and environment-protective, no dark space, the distinguishing feature such as installation and maintenance simple and fast.Along with display more and more to slimming, merrily and lightheartedly change development, reducing diaphragm has been trend of the times, diameter 0.25mm can only be accomplished in the minimum site of traditional printing light guide plate, can not meet existing market requirement, and hot-pressing light guide plate site size is 50-70um, fundamentally can solves diaphragm and reduce the site visual phenomena occurred.
As shown in Figure 2, the flow process developing hot-pressing light guide plate of the present utility model specifically comprises the following steps:
Pattern (stipple pattern) designs: by Mathcad Software for Design curvilinear function, several key elements for affecting optics: dot density ratio, DOT size adjusts optics trend trend, proceed to GTOOLS output again to layout, to the dark angle of optical frame, HOTSPOT process, is made the travel path of light be reflected by site uniformly, reaches optimization picture effect.
Stamper processes: proceed in laser process equipment with software after net-pont design completes, before Laser Processing, processing conditions is found and screens, to DOT point size, the degree of depth of Pattern design, shape finds suitable parameters by laser machine frequency, pulse number, laser energy, camera lens height etc., machine and to clean Stamper afterwards, cleaning performance directly affects later stage light guide plate optics, picture.So have strict regulation for cleaning Stamper flow process, the magic power cleaning sponge that cleaning sponge adopts Japan advanced, Stamper surface scratches and speckle can not be caused, cleaned rear ion wind gun and dried up, can not have residual water stain.
DOT spot size is measured: Stamper is kept flat measurement platform block fixing after, adopt Korea S import nanometer 3D measuring equipment to measure DOT size, the degree of depth, shape, to determine whether to reach designing requirement.Spend electrostatic protection film after measurement completes and carry out one side film protection DOT surface.
Hot-pressing light guide plate: test OK product Stamper fixture is fixed on hot press roller, before production and processing, processing conditions found and screen, Stamper upper DOT point is impressed into some key factor of light guide plate: upper and lower roller temperature, roller pressure, upper and lower wheel speeds; Technician is to the upper and lower roller temperature of hot-press equipment, and roller pressure, upper and lower wheel speeds is carried out debugging and found suitable parameter.The sheet material of different-thickness has strict requirement to the temperature of upper and lower roller, pressure, and temperature, hypertonia can cause light conducting board from deformation, and picture can not mistake, and do not possess production, appointed condition has been found rear computer and preserved.Because technological requirement requires higher to clean room environment in whole production run, dust free room grade must reach Class100.
The technological process of production of hot-pressing light guide plate of the present utility model as shown in Figure 2; first clean light guide plate sheet material; then light guide plate protective film is removed; guarantee light guide plate is cleansing double sided, then gets with gripper of manipulator and is placed on travelling belt, then light guide plate contraposition; upper roller with site and smooth bottom roller impression light guide plate; and then whether detect the hot-pressing light guide plate after impressing by picture qualified, more two-sided overlay film, then vacuum packaging obtains finished product.
In above-mentioned technique, in moulding process, the temperature adjusting of upper roller is at 110-130 DEG C, and the temperature adjusting of bottom roller is at 40-60 DEG C.
Hot-pressing light guide plate in the utility model and the production technology of hot-pressing light guide plate and now conventional injection molding technology, printing technology are relative with radium-shine technology, have the advantage that its excess-three kind technology can not be compared.
(1), hot-pressing light guide plate technique compares injection molding technology, and advantage is as follows:
1, cost of development is low.Need designing mould during injection molding technology Develop new product, mfg. moulding die, die cost is high, and the construction cycle is long; Heat pressing process does not need mould, and one block of steel plate that can change only need be used to get final product (site designed is printed on steel plate by laser machine).
2, can production large-size light-conducting plate.Injection moulding limits because of stamping pressure, and can production full-size be 32 cun, production capacity be lower, and heat pressing process is linear contact lay, can produce at present and be of a size of 80 cun.
3, flexibility management and control is better.Shooting Technique after moulding, uses mechanical arm to capture, and when capturing the light guide plate be just shaped with higher temperature, easily makes light guide plate local bending, large scale and thin light guide plate, cannot capture volume production.
4, security is good.Injection moulding uses pressing mold impact briquetting, and has moving around of mechanical arm, easily occurs to hurt sb.'s feelings when mould closes film, and mechanical arm is hurted sb.'s feelings event.Heat pressing process is omnidistance in light guide plate moves to be closed, and avoids the possibility that security incident occurs.
(2), hot-pressing light guide plate technology compares printing technology, and advantage is as follows:
1, environmental protection.Printing technology uses ink printing, and the composition of ink contains the benzene, dimethylbenzene etc. that human body are had to harm, and hot press forming technology makes light guide plate be subject to thermal softening and forms site, do not use the chemicals such as ink, to human body without harm, can accomplish environmental protection.
2, thin light guide panel is produced.Current printing technology, domestic enterprise many production more than 2mm light guide plate, produce below 2mm light guide plate time, because of light guide plate printing-ink through IR stove or UV stove can run into light guide plate heated bending distortion problem.The lightening development of backlight industry forward, hot-pressing light guide plate technique better can adapt to the developing direction of backlight industry.
(3), hot-pressing light guide plate technology compares radium-shine technology, and advantage is as follows:
1, thin light guide panel is produced.Radium-shine technology is multiplex in production more than 2mm large-size light-conducting plate, because radium-shine use laser forms concave point in light guide plate surface, light guide plate can be made to bend to the one side forming concave point, when producing the light guide plate of below 2mm, flexible.
2, radiationless, radium-shine technology uses laser ablation concave point, and laser has radianting capacity, and heat pressing process does not exist ray problem, radiationless.
3, production capacity is high.Radium-shine technology cannot accomplish that more camera lens works simultaneously because of laser head quantity, production efficiency and production capacity lower.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. a hot-pressing light guide plate, it comprises hot-pressing light guide plate surface and the hot-pressing light guide plate back side, and it is characterized in that, described hot-pressing light guide plate surface is provided with some equal-sized sites, and described site is V-type groove, and described V-type groove is absorbed in described hot-pressing light guide plate surface.
2. a kind of hot-pressing light guide plate according to claim 1, is characterized in that, the external diameter of described V-type groove is 50-70 μm.
3. a kind of hot-pressing light guide plate according to claim 2, is characterized in that, described V-type groove comprises bottom portion of groove and slot opening, and described bottom portion of groove is all arranged in same level, and described slot opening is all arranged in same level.
4. a kind of hot-pressing light guide plate according to claim 3, is characterized in that, the distance between described V-type groove is unequal.
5. a kind of hot-pressing light guide plate according to claim 4, is characterized in that, is formed trapezoidal between described V-type groove, and described V-type groove is single individuality, not overlapping between described V-type groove.
6. a kind of hot-pressing light guide plate according to claim 1, is characterized in that, the described hot-pressing light guide plate back side is smooth flat.
7. a kind of hot-pressing light guide plate according to claim 1, is characterized in that, described hot-pressing light guide plate is high transparency acrylic board or the polycarbonate plate of polymethylmethacrylate material.
8. a kind of hot-pressing light guide plate according to claim 7, is characterized in that, the thickness of described hot-pressing light guide plate is 0.3-3.0mm.
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| CN201520090833.1U CN204439873U (en) | 2015-02-09 | 2015-02-09 | A kind of hot-pressing light guide plate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137528A (en) * | 2015-09-10 | 2015-12-09 | 怀宁县鸿腾矿业开发有限责任公司 | Light board processing technology |
| CN105607178A (en) * | 2015-12-30 | 2016-05-25 | 广东亿芯照明科技有限公司 | Light guide plate formed by one-time extrusion moulding and manufacturing process |
| CN107884870A (en) * | 2017-12-27 | 2018-04-06 | 翰博高新材料(合肥)股份有限公司 | A kind of light conducting plate structure for solving the problems, such as lamp shadow and preparation method thereof |
| CN108828709A (en) * | 2018-07-03 | 2018-11-16 | 苏州茂立光电科技有限公司 | Have the light guide plate and its manufacturing method of high outgoing light homogeneity |
| CN108873155A (en) * | 2018-08-09 | 2018-11-23 | 嘉兴市创杰电子科技有限公司 | A kind of production method and its structure of light guide plate |
-
2015
- 2015-02-09 CN CN201520090833.1U patent/CN204439873U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137528A (en) * | 2015-09-10 | 2015-12-09 | 怀宁县鸿腾矿业开发有限责任公司 | Light board processing technology |
| CN105607178A (en) * | 2015-12-30 | 2016-05-25 | 广东亿芯照明科技有限公司 | Light guide plate formed by one-time extrusion moulding and manufacturing process |
| CN107884870A (en) * | 2017-12-27 | 2018-04-06 | 翰博高新材料(合肥)股份有限公司 | A kind of light conducting plate structure for solving the problems, such as lamp shadow and preparation method thereof |
| CN108828709A (en) * | 2018-07-03 | 2018-11-16 | 苏州茂立光电科技有限公司 | Have the light guide plate and its manufacturing method of high outgoing light homogeneity |
| CN108873155A (en) * | 2018-08-09 | 2018-11-23 | 嘉兴市创杰电子科技有限公司 | A kind of production method and its structure of light guide plate |
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