WO2020093945A1 - 导光板侧边反射片贴附工艺及导光板 - Google Patents
导光板侧边反射片贴附工艺及导光板 Download PDFInfo
- Publication number
- WO2020093945A1 WO2020093945A1 PCT/CN2019/115049 CN2019115049W WO2020093945A1 WO 2020093945 A1 WO2020093945 A1 WO 2020093945A1 CN 2019115049 W CN2019115049 W CN 2019115049W WO 2020093945 A1 WO2020093945 A1 WO 2020093945A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light guide
- guide plate
- sheet
- reflective
- reflective material
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
Definitions
- the present application relates to the field of liquid crystal display backlight modules, in particular to a light guide plate side reflective sheet attaching process and a light guide plate.
- the light guide plate (light guide) plate (abbreviated as LGP) must be processed and attached with a side reflection sheet with a certain reflectivity.
- the currently used side reflectors mainly use a white substrate or a silver substrate as the reflective layer.
- the reflective surface of the reflective substrate is processed with a certain thickness and a transparent adhesive layer, which is attached to the light guide plate through the adhesive layer.
- the non-light-incident end face realizes the best utilization of the light effect of the side-entry backlight module.
- the processing efficiency of attaching the side reflectors to the end face of the LGP is low, and only one additional worker can be attached at a time.
- the main purpose of the present application is to propose a process for attaching the side reflection sheet of the light guide plate and the light guide plate, aiming to improve the processing efficiency of the side reflection sheet of the light guide plate.
- the side reflective sheet attaching process includes:
- the sheet-shaped film-type reflective material is cured on the end surface of the light guide plate.
- the transparent liquid viscous raw material is a mixture of one or more of acrylic ink, epoxy resin ink, polyurethane ink, polyester ink, vinyl ink or rubber ink.
- the transparent liquid viscous raw material is one of silicone structural adhesives, polyurethane adhesives or silicone structural adhesives.
- the reflective material powder is a mixture of one or more of silicon dioxide, titanium dioxide, white powder, white PET fine powder, or yellow phosphor powder.
- the reflective material powder is a mixture of one or more of yellow fluorescent powder and silica, titanium dioxide, white powder or white PET fine powder.
- the liquid viscous reflective material is a spray material with one or more of silica, titanium dioxide, white powder or white PET fine powder.
- the coating thickness of the liquid viscous reflective material is not less than 50um and not more than 220um.
- the coating thickness of the liquid viscous reflective material is 150um.
- determine the mass percentage of the reflective material powder determine the mass percentage of the reflective material powder to be 15%, and reduce the coating thickness of the liquid viscous reflective material; or,
- the thickness of the light guide plate is less than 2 mm.
- liquid viscous reflective material is sprayed or coated on the sheet substrate.
- the sheet-shaped thin-film reflective material is cured on the end surface of the light guide plate through a curing process, and the curing process is a thermal curing process or a UV curing process.
- the sheet-shaped film-type reflective material is integrally attached to a plurality of light guide plates.
- a plurality of the light guide plates are stacked neatly, and the whole-surface reflection layer of the sheet-shaped film-type reflective material is attached and transferred to the end surfaces of the stacked light guide plates.
- the sheet-like film-type reflective material is attached to the end surface of the light guide plate on the non-incident side.
- the present application proposes a light guide plate on the basis of the above-mentioned process for attaching the side reflective sheet of the light guide plate, a reflective sheet is attached to the non-incident side end surface of the light guide plate, and the reflective sheet passes through the above-mentioned process Attached to the light guide plate.
- a liquid thin-film reflective material with a certain viscosity is uniformly processed on a flat sheet substrate to form a thin-film reflective material, so that the thin-film reflective material can be attached to one or more light guide plates, It can help to improve the processing efficiency of the reflective sheet on the side of the light guide plate.
- 1 is a schematic diagram of the process flow of the first embodiment of the subject of the application.
- FIG. 2 is a schematic diagram of product application according to the first embodiment of the subject of the application.
- FIG. 3 is an enlarged view of a partial structure of part A in FIG. 2.
- first”, “second”, etc. are for descriptive purposes only, and cannot be understood as instructions or hints Its relative importance or implicitly indicates the number of technical features indicated.
- the features defined with “first” and “second” may include at least one of the features either explicitly or implicitly.
- the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of those skilled in the art to realize. When the combination of technical solutions contradicts or cannot be realized, it should be considered that the combination of such technical solutions does not exist , Nor within the scope of protection required by this application.
- this application proposes a process for attaching a reflective sheet on the side of a light guide plate 100.
- the process includes:
- a reflective material powder 400 is added to the transparent liquid viscous material 300 and mixed to form a liquid viscous reflective material.
- the mass percentage of the reflective material powder 400 is not less than 15% and not more than 45%.
- the liquid viscous reflective material can be applied on the thin-film substrate by spraying or coating to form a sheet-like thin-film reflective material; in step S30, the sheet-like thin-film reflective The material is attached to the end surface of the light guide plate 100. At this time, the liquid viscous reflective material is covered on the end surface of the light guide plate 100 on the non-incident side, and the sheet-shaped film-type reflective material is cured on the end surface of the light guide plate 100 on the non-incident side on.
- multiple light guide plates 100 can be stacked neatly. At this time, the whole-surface reflection layer of the sheet-like thin film reflective material is attached and transferred to the stacked light guide plates 100. On the end surface, the simultaneous attaching operation of the side reflection sheets of the multiple light guide plates 100 can be realized.
- the stacking mode of the light guide plate 100 can be set according to needs. In this application, at least 50 light guide plates 100 stacked neatly are used, and at the same time, the operation of attaching the reflective sheets on the side of the light guide plate 100 is implemented. By adopting a sheet-shaped film-type reflective material to be attached to the plurality of light guide plates 100 as a whole, the processing efficiency of the light reflection plate side reflection sheet can be greatly improved.
- the coating thickness of the liquid viscous reflective material is not less than 50um and not more than 220um, and the specific thickness is selected according to the actual light and dark degree of product taste, which is usually about 150um.
- the sheet-like thin-film reflective material is cured by a thermal curing process or UV (a chemical source is irradiated with a UV light source, so that the scale "photo-starter” contained in the chemical is stimulated by the UV light source, In a very short period of time, let the "polymerization monomer” contained in the chemical produce glue hardening "radiation hardening technology” process curing on the end surface of the light guide plate
- the transparent liquid viscous raw material 300 and the reflective material are formulated according to the above formula to form a liquid viscous reflective material, which can completely avoid the liquid state of the liquid of the existing reflective material.
- the reflective materials that exist in the process can enter the effective light-emitting area of the product through the surface microstructure groove of the light guide plate, thereby affecting the display performance of the product and other problems.
- a liquid viscous reflective material is prepared by adopting a reflective material powder 400 with a mass percentage of not less than 15% and no more than 45% and a liquid viscous raw material 300, so that the reflective material powder 400 is evenly distributed in the liquid state In the viscous raw material 300, a good adhesion effect and a fall-off prevention effect can be achieved.
- the viscosity of the liquid viscous reflective material formed is relatively large, and the coating thickness of the liquid viscous reflective material can be relatively reduced at this time
- the mass percentage of the liquid viscous raw material 300 is relatively low. At this time, the viscosity of the liquid viscous reflective material is low. At this time, the liquid viscous material can be increased. The coating thickness of the reflective material is attached.
- the mass percentage of the reflective material powder 400 When the mass percentage of the reflective material powder 400 is less than 15%, the reflection effect of the liquid viscous reflective material will be affected; when the mass percentage of the reflective material powder 400 is greater than 45%, the reflective material powder in the liquid viscous reflective material It may be introduced into the effective light-emitting area of the light guide plate and affect the product visual effect.
- the liquid viscous reflective material is processed to the end surface of the light guide plate on the non-incident side through the above process flow, the reflective material has a certain strong penetration effect on the light guide plate, and the side reflection sheet different from the exemplary method is adhered to the light guide through the adhesive tape
- the end surface of the light plate so that the reflective material and the light guide plate are integrated into one unit, there is no possibility of falling off and separation, and the reliability test caused by the use of the exemplary method of side reflectors is completely solved. ⁇ 2.0mm)
- the problem of insufficient side stripping force on the side of the light guide plate causes the side stripping to affect the product quality.
- the transparent liquid viscous raw material 300 is acrylic ink, epoxy resin ink, polyurethane ink, polyester ink, vinyl ink or rubber
- a mixture of one or more types of inks; corresponding to the reflective material powder 400 is a mixture of one or more types of silicon dioxide, titanium dioxide, white powder, white PET fine powder, or yellow phosphor powder.
- the mass percentage of the reflective material powder 400 is not less than 15% and not more than 45%.
- the edge of the light guide plate is from the effective light-emitting area of the TV, the more the light will bounce back through the side reflectors and the light intensity and brightness will be more easily noticed by the human eye.
- the angle of the reflected light directly enters the visible area of the TV, so it creates a bright edge problem.
- the reflection effect on the light is changed, the diffuse reflection effect of multiple angles and directions is achieved, and the light effect of the direct reflection is dispersed to achieve Solve the effect of bright edges.
- the viscosity of the liquid reflective material can be adjusted by adjusting the mass percentage of the reflective material powder 400 to achieve the viscosity of the liquid viscous reflective material.
- the viscosity requirements need to correspond to the effect of product processing on the edge penetration effect It depends. For example, if the viscosity is too low, the reflective material may be introduced into the effective light-emitting area of the light guide plate during the coating process, which may affect the taste of the product.
- the thickness of the end surface of the light guide plate can be controlled, so that the edge light can be totally reflected and diffused to varying degrees, which solves many taste visual problems at the edge of the product.
- the liquid viscous raw material 300 is a transparent liquid viscous raw material 300, which is a silicone structural adhesive, polyurethane adhesive or organic
- the silicone structural adhesives corresponds to the reflective material powder 400 being one or more mixtures of silicon dioxide, titanium dioxide, white powder, white PET fine powder, or yellow phosphor powder.
- the ratio and technical effects are the same as those in the second embodiment, and will not be repeated here.
- the transparent liquid viscous raw material 300 is acrylic ink, epoxy resin ink, polyurethane ink, polyester ink, vinyl ink or rubber A mixture of one or more types of inks; it can also be one of silicone structural adhesives, polyurethane adhesives or silicone structural adhesives; corresponding to the reflective material powder 400 is yellow phosphor powder and dioxide A mixture of one or more of silicon, titanium dioxide, white powder or white PET fine powder.
- the reflective material powder 400 must contain yellow phosphor, and the yellow phosphor and silicon dioxide, titanium dioxide, white powder or white PET fine powder form the reflective material powder 400.
- the yellow phosphor has the characteristics of absorbing blue light and converting it into backlight.
- the edge of the finished quantum dot product has a blue edge, it means that too much blue light cannot be converted into white light by the quantum membrane.
- the material with phosphor powder is processed on the cut end surface of the light guide plate, and the edge of the light guide plate is passed in advance. More blue light is converted into white light, thereby solving the problem of leaking blue edges at the edge of quantum dot products.
- the liquid viscous reflective material is a spray material with one or more of silica, titania, white powder, or white PET fine powder.
- the liquid viscous reflective material is prepared as a spray material, and during processing, it is sprayed directly on the sheet substrate to make it easier to apply on the sheet substrate, and then its processing is more Convenience.
- This application is not only limited to the solution of the problem of attaching the bright line reflected by the side edge on the light exit side of the single-sided light incident, but also applicable to the problem of uneven brightness of the corners of any designed liquid crystal display module. Proposals to use a certain viscous liquid reflective material to solve image quality visual effects, if required, are within the scope of this application.
- liquid viscous reflective materials and sheet substrates to form sheet-like thin-film reflective materials can facilitate the attachment of the side reflectors of the multi-light guide plate as a whole, improving the processing efficiency of the side reflectors of the light guide plate; using reflective material powder
- the mass percentage is not less than 15% and not more than 45%. It can effectively achieve the best utilization of the light efficiency of the side-entry backlight module.
- Another subject of the present application also discloses a light guide plate, including a light guide plate and a reflective sheet attached to an end surface of the light guide plate on the non-incident side, the reflective sheet is attached to the light guide plate by the process in the above embodiment on.
- the light guide plate processed by this process can solve the problem of low efficiency of the side attaching of the light guide plate, which helps to reduce the cost of the finished light guide plate; the output of the product is reliable and the reliability of the experiment is stable, shortening the product development cycle; product quality Stability can help increase market competitiveness for enterprises.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
一种导光板（100）侧边反射片贴附工艺及导光板（100），工艺包括：在透明的液态粘稠状原料（300）中加入反光材料粉末（400）调配形成液态粘稠状反射材料，其中，反光材料粉末（400）的质量百分比不少于15％且不超过45％；将液态粘稠状反射材料涂覆在薄片基材上形成片状薄膜式反射材料；将片状薄膜式反射材料贴附在导光板（100）端面上；将片状薄膜式反射材料固化在导光板（100）端面上。
Description
相关申请
本申请要求2018年11月09日申请的，申请号为201811336434.3，名称为“导光板侧边反射片贴附工艺及导光板”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本申请涉及液晶显示屏背光模组领域，特别涉及一种导光板侧边反射片贴附工艺及导光板。
背景技术
为了更加高效使侧入式背光模组的光学利用最佳化，导光板（light guide
plate，简称LGP）的非入光侧端面均需要加工贴附具有一定反射率的侧边反射片。目前使用的侧边反射片主要是以白色基材或银色基材为反射层，将其反射基材的反射面加工上一定厚度且透明的黏胶层，通过黏胶层贴附在导光板的非入光端面，从而实现侧入式背光模组的光效最佳利用化。然而这样的侧边反射片，实际产品加工和应用中，侧边反射片贴附到LGP端面加工效率低，一次只能贴附加工一片。
申请内容
本申请的主要目的是提出一种导光板侧边反射片贴附工艺及导光板，旨在提高导光板侧边反射片加工效率。
为实现上述目的，本申请提出的一种导光板侧边反射片贴附工艺，所述侧边反射片贴附工艺包括：
在透明的液态粘稠状原料中加入反光材料粉末调配形成液态粘稠状反射材料，其中，所述反光材料粉末的质量百分比不少于15%且不超过45%；
将所述液态粘稠状反射材料涂覆在薄片基材上形成片状薄膜式反射材料；
将所述片状薄膜式反射材料贴附在导光板端面上；
将所述片状薄膜式反射材料固化在导光板端面上。
可选地，所述透明液态粘稠状原料为丙烯酸类油墨、环氧树脂类油墨、聚氨酯类油墨、聚酯类油墨、乙烯基类油墨或橡胶类油墨中的一种或多种的混合物。
可选地，所述透明液态粘稠状原料为硅酮结构胶类、聚氨酯胶类或有机硅结构胶类中的一种。
可选地，所述反光材料粉末为二氧化硅、二氧化钛、太白粉、白色PET微细粉体或黄色荧光粉体的一种或多种的混合物。
可选地，所述反光材料粉末为黄色荧光粉体与二氧化硅、二氧化钛、太白粉或白色PET微细粉体中的一种或多种的混合物。
可选地，所述液态粘稠状反射材料为带有二氧化硅、二氧化钛、太白粉或白色PET微细粉体中的一种或多种的喷涂材料。
可选地，所述液态粘稠状反射材料的涂覆厚度为不小于50um且不超过220um。
可选地，所述液态粘稠状反射材料的涂覆厚度为150um。
可选地，确定所述反光材料粉末的质量百分比，确定所述反光材料粉末的质量百分比为15%，减小所述液态粘稠状反射材料的涂层厚度；或，
确定所述反光材料粉末的质量百分比为45%，增大所述液态粘稠状反射材料的涂层厚度。
可选地，所述导光板的厚度小于2mm。
可选地，所述液态粘稠状反射材料喷涂或涂布在所述薄片基材上。
可选地，所述片状薄膜式反射材料通过固化工艺固化在导光板端面上，所述固化工艺为热固化工艺或UV固化工艺。
可选地，所述片状薄膜式反射材料整体贴附到多个导光板上。
可选地，多片所述导光板整齐堆叠，所述片状薄膜式反射材料整面反射层贴附转印于堆叠整齐的多片导光板端面上。
可选地，所述片状薄膜式反射材料贴附在所述导光板的非入光侧端面上。
本申请在上述导光板侧边反射片贴附工艺的基础上，提出一种导光板，所述导光板的非入光侧端面的贴附有反射片，所述反射片通过上述所述的工艺贴附在所述导光板上。
本申请技术方案通过采用具有一定粘度的液态状反射材料均匀加工在一个平面薄片基材上形成片状薄膜式反射材料，使片状薄膜式反射材料能够贴附在一片或多片导光板上，可以有助于提高导光板侧边反射片的加工效率。
附图说明
为了更清楚地说明本申请实施例或示例性技术中的技术方案，下面将对实施例或示例性技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本申请主题一第一实施例工艺流程示意图；
图2为本申请主题一第一实施例产品应用示意图；
图3为图2中A部位局部结构放大图。
附图标号说明：
| 标号 | 名称 | 标号 | 名称 |
| 100 | 导光板 | 200 | 光源 |
| 300 | 液态粘稠状原料 | 400 | 反光材料粉末 |
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，若本申请实施例中有涉及方向性指示（诸如上、下、左、右、前、后……），则该方向性指示仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本申请实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
请参阅图1，本申请提出一种导光板100侧边反射片贴附工艺，所述工艺包括：
S10，在透明的液态粘稠状原料300中加入反光材料粉末400调配形成液态粘稠状反射材料，所述反光材料粉末400的质量百分比为不少于15%且不超过45%；
S20，将所述液态粘稠状反射材料涂覆在薄片基材上形成片状薄膜式反射材料；
S30，将所述片状薄膜式反射材料贴附在导光板端面上；
S40，将所述片状薄膜式反射材料固化在导光板端面上。
在步骤S10中，在透明的液态粘稠状原料300中加入反光材料粉末400混合调配形成液态粘稠状反射材料，该反光材料粉末400的质量百分比为不少于15%且不超过45%，在步骤S20中，可以采用喷涂或涂布的方式将所述液态粘稠状反射材料涂覆在薄片基材上形成片状薄膜式反射材料；在步骤S30中，将所述片状薄膜式反射材料贴附在导光板100端面上，此时使液态粘稠状反射材料覆盖在导光板100非入光侧端面上，将所述片状薄膜式反射材料固化在导光板100非入光侧端面上。
请参阅图2、图3，在上述工艺方法中，能够将多片导光板100整齐堆叠，此时将片状薄膜式反射材料整面反射层贴附转印于堆叠整齐的多片导光板100端面上，即可实现多片导光板100侧边反射片的同步贴附操作。其中导光板100的堆叠方式，可以根据需要设定，在本申请中，采用至少50片整齐堆叠的导光板100，同时实现导光板100侧边反射片的贴附操作。通过采用形成片状薄膜式反射材料整体贴附到多个导光板100，能够大大提升导光板侧边反射片的加工效率。
本实施例中，液态粘稠状反射材料的涂覆厚度为不小于50um且不超过220um，根据实际产品品味明暗程度来做具体厚度选择，常用的150um左右。在步骤S40中，所述片状薄膜式反射材料通过热固化工艺或UV固化（一种以UV光源照射化学物，使该化学物当中所含垢"光启始剂"受到UV光源的刺激，于极短时间内让该化学物中所包含的"聚合单体"产生胶合硬化的"辐射硬化技术"）工艺固化在导光板端面上
在本实施例中，将透明液态粘稠状原料300与反光材料按照上述配方调配形成液态粘稠状反射材料，可以彻底避免现有的反射材料的流体的液态，在加工过程中，能够避免现有工艺存在的反射材料能够通过导光板的表面微结构沟槽进入到产品有效发光区域从而影响产品的显示性能等问题。
本实施例中，通过采用质量百分比为不少于15%且不超过45%的反光材料粉末400与液态粘稠状原料300调配形成液态粘稠状反射材料，使得反光材料粉末400均布在液态粘稠状原料300内，可以起到良好的粘附效果及防止脱落效果。
在本实施例中，当采用质量百分比为15%的反光材料粉末400时，调配形成的液态粘稠状反射材料的粘度相对较大，此时可以相对减小液态粘稠状反射材料涂层厚度；当采用质量百分比为45%的反光材料粉末400时，液态粘稠状原料300的质量百分比相对较低，此时液态粘稠状反射材料的粘度较低，此时可以增大液态粘稠状反射材料的涂层厚度实现贴附。
当反光材料粉末400的质量百分比小于15%时，液态粘稠状反射材料的反射效果会受到影响；当反光材料粉末400的质量百分比大于45%时，液态粘稠状反射材料中的反射材料粉末可能会导入到导光板的有效发光区域内，影响产品视效。
通过上述工艺流程将液态粘稠状反射材料加工至导光板非入光侧端面，反射材料对导光板具有一定强渗透的附着效果，不同于示例性方法的侧边反射片通过胶带粘附在导光板端面，从而使其反射材料与导光板成为一个融合整体，不会存在脱落和分离的可能，彻底解决使用示例性方法侧边反射片导致的可靠性实验侧反脱落和薄型化（导光板厚度<2.0mm）导光板侧反剥离力不足导致侧反脱落影响产品品质的问题。
以下为本申请的另一实施例，本实施例中，所述透明液态粘稠状原料300为丙烯酸类油墨、环氧树脂类油墨、聚氨酯类油墨、聚酯类油墨、乙烯基类油墨或橡胶类油墨中的一种或多种的混合物；对应所述反光材料粉末400为二氧化硅、二氧化钛、太白粉、白色PET微细粉体或黄色荧光粉体的一种或多种的混合物。控制反光材料粉末400的质量百分比为不少于15%且不超过45%。
如导光板的边缘离电视有效发光区越小，光线通过侧边反射片反弹回来其光强亮度就越容易被人眼觉察，且现有的侧反产品均是采用反射型的基材，其反射光线的角度直接进入到电视的可视区域，所以形成亮边问题。本实施例中，通过对反光材料粉末400的加入比例进行调整，改变其对光的反射效果，实现多角度、多方向的漫反射效果，将其直向性反射的光效分散，从而可以达到解决亮边的效果。
在本实施例中，可以通过调整反光材料粉末400的质量百分比，对稀释溶剂加入的比例进行不同调控实现液态粘稠状反射材料的粘度，对粘度的要求需要对应产品加工对边缘渗透效果的影响而定。比如粘度太低，在涂层加工时反射材料可能会导入到导光板有效发光区域内，导致影响到产品的品味视效。通过对粘度的控制，来实现导光板端面附着厚度的控制，使其边缘光线不同程度的全反射和漫反射，解决产品边缘的诸多品味视效问题。
以下为本申请第三实施例，本实施例与第二实施例的区别在于，所述液态粘稠状原料300选择透明液态粘稠状原料300，为硅酮结构胶类、聚氨酯胶类或有机硅结构胶类中的一种，对应所述反光材料粉末400为二氧化硅、二氧化钛、太白粉、白色PET微细粉体或黄色荧光粉体的一种或多种的混合物。其配比及技术效果与第二实施例相同，不再赘述。
以下为本申请的第四实施例，本实施例中，所述透明液态粘稠状原料300为丙烯酸类油墨、环氧树脂类油墨、聚氨酯类油墨、聚酯类油墨、乙烯基类油墨或橡胶类油墨中的一种或多种的混合物；也可以为硅酮结构胶类、聚氨酯胶类或有机硅结构胶类中的一种；对应所述反光材料粉末400为黄色荧光粉体与二氧化硅、二氧化钛、太白粉或白色PET微细粉体中的一种或多种的混合物。
本实施例中，反光材料粉末400中必须包含黄色荧光粉，使黄色荧光粉与二氧化硅、二氧化钛、太白粉或白色PET微细粉体形成反光材料粉末400。黄色荧光粉体具有吸收蓝光、并将其蓝光转换成背光的特性。当量子点成品产品边缘漏蓝边时，说明有过多的蓝光无法通过量子膜片转换成白光，采用带有荧光粉分体的材料加工在导光板裁切端面上，提前将导光板边缘过多的蓝光转换成白光，从而解决量子点产品边缘漏蓝边问题。
以下为本申请第四实施例，本实施例中，所述液态粘稠状反射材料为带有二氧化硅、二氧化钛、太白粉或白色PET微细粉体中的一种或多种的喷涂材料。在本实施例中，将液态粘稠状反射材料制备成为喷涂材料，在加工时，将其直接喷涂在薄片基材上，使其能够更容易涂覆在薄片基材上，继而使其加工更加方便。
本申请不仅局限用于对单边入光的出光侧贴附侧边反射的亮线问题的解决，同时适用于任何设计的液晶显示模组边角明暗不均的问题解决。而对于如需求使用一定粘稠状的液态反射材料进行解决画质视效的提案均在本申请范畴内。
利用将液态粘稠状反射材料与薄片基材形成片状薄膜式反射材料，能够方便实现多导光板的侧边反射片整体贴附，提升导光板侧边反射片的加工效率；采用反射材料粉末质量百分比为不少于15%且不超过45%的配比方式，能够有效实现侧入式背光模组的光效最佳利用化。同时，调整液态粘稠状反射材料的反射率，即调整反射材料粉末的质量百分比，通过对光不同程度的反射，解决超窄边框产品的亮边问题；还可以通过对液态粘稠状反射材料的粘度调整，实现对导光板端面附着厚度的控制，使其边缘光线不同程度的全反射和漫反射，解决产品边缘的诸多品味视效问题。
本申请另一主题中还公开了一种导光板，包括导光板及贴附在导光板非入光侧端面的反射片，所述反射片通过上述实施例中的工艺贴附在所述导光板上。采用该工艺加工的导光板，能够解决导光板侧贴贴附加工效率低的问题，有助于导光板成品成本降低；产出的产品可靠信赖性实验稳定，缩短了产品的开发周期；产品品质稳定，能够有助于为企业提升市场竞争力。
以上所述仅为本申请的可选实施例，并非因此限制本申请的专利范围，凡是在本申请的申请构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。
Claims (16)
- 一种导光板侧边反射片贴附工艺，其中，所述侧边反射片贴附工艺包括：在透明的液态粘稠状原料中加入反光材料粉末调配形成液态粘稠状反射材料，其中，所述反光材料粉末的质量百分比不少于15%且不超过45%；将所述液态粘稠状反射材料涂覆在薄片基材上形成片状薄膜式反射材料；将所述片状薄膜式反射材料贴附在导光板端面上；将所述片状薄膜式反射材料固化在导光板端面上。
- 如权利要求1所述的一种导光板侧边反射片贴附工艺，其中，所述透明液态粘稠状原料为丙烯酸类油墨、环氧树脂类油墨、聚氨酯类油墨、聚酯类油墨、乙烯基类油墨或橡胶类油墨中的一种或多种的混合物。
- 如权利要求1所述的一种导光板侧边反射片贴附工艺，其中，所述透明液态粘稠状原料为硅酮结构胶类、聚氨酯胶类或有机硅结构胶类中的一种。
- 如权利要求2或3所述的一种导光板侧边反射片贴附工艺，其中，所述反光材料粉末为二氧化硅、二氧化钛、太白粉、白色PET微细粉体或黄色荧光粉体的一种或多种的混合物。
- 如权利要求2或3所述的一种导光板侧边反射片贴附工艺，其中，所述反光材料粉末为黄色荧光粉体与二氧化硅、二氧化钛、太白粉或白色PET微细粉体中的一种或多种的混合物。
- 如权利要求1所述的一种导光板侧边反射片贴附工艺，其中，所述液态粘稠状反射材料为带有二氧化硅、二氧化钛、太白粉或白色PET微细粉体中的一种或多种的喷涂材料。
- 如权利要求1所述的一种导光板侧边反射片贴附工艺，其中，所述液态粘稠状反射材料的涂覆厚度为不小于50um且不超过220um。
- 如权利要求7所述的一种导光板侧边反射片贴附工艺，其中，所述液态粘稠状反射材料的涂覆厚度为150um。
- 如权利要求1所述的一种导光板侧边反射片贴附工艺，其中，确定所述反光材料粉末的质量百分比，确定所述反光材料粉末的质量百分比为15%，减小所述液态粘稠状反射材料的涂层厚度；或，确定所述反光材料粉末的质量百分比为45%，增大所述液态粘稠状反射材料的涂层厚度。
- 如权利要求1所述的一种导光板侧边反射片贴附工艺，其中，所述导光板的厚度小于2mm。
- 如权利要求1所述的一种导光板侧边反射片贴附工艺，其中，所述液态粘稠状反射材料喷涂或涂布在所述薄片基材上。
- 如权利要求1所述的一种导光板侧边反射片贴附工艺，其中，所述片状薄膜式反射材料通过固化工艺固化在导光板端面上，所述固化工艺为热固化工艺或UV固化工艺。
- 如权利要求1所述的一种导光板侧边反射片贴附工艺，其中，所述片状薄膜式反射材料整体贴附到多个导光板上。
- 如权利要求13所述的一种导光板侧边反射片贴附工艺，其中，多片所述导光板整齐堆叠，所述片状薄膜式反射材料整面反射层贴附转印于堆叠整齐的多片导光板端面上。
- 如权利要求1所述的一种导光板侧边反射片贴附工艺，其中，所述片状薄膜式反射材料贴附在所述导光板的非入光侧端面上。
- 一种导光板，其中，所述导光板的非入光侧端面贴附有反射片，所述反射片通过如权利要求1-15任一项所述的工艺贴附在所述导光板上。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811336434.3 | 2018-11-09 | ||
| CN201811336434.3A CN109239837B (zh) | 2018-11-09 | 2018-11-09 | 导光板侧边反射片贴附工艺及导光板 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020093945A1 true WO2020093945A1 (zh) | 2020-05-14 |
Family
ID=65077917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2019/115049 WO2020093945A1 (zh) | 2018-11-09 | 2019-11-01 | 导光板侧边反射片贴附工艺及导光板 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109239837B (zh) |
| WO (1) | WO2020093945A1 (zh) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239837B (zh) * | 2018-11-09 | 2020-11-03 | 深圳Tcl新技术有限公司 | 导光板侧边反射片贴附工艺及导光板 |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003007112A (ja) * | 2001-06-21 | 2003-01-10 | Casio Comput Co Ltd | 面光源 |
| CN102116893A (zh) * | 2011-03-10 | 2011-07-06 | 广州创维平面显示科技有限公司 | 导光板的制作方法、导光板、背光模块及液晶显示器 |
| CN203054415U (zh) * | 2012-12-06 | 2013-07-10 | 广州奥翼电子科技有限公司 | 一种改进型电子纸显示装置 |
| CN205103428U (zh) * | 2015-10-27 | 2016-03-23 | 翰博高新材料(合肥)股份有限公司 | 一种用于贴附导光板端面边缘反射片的装置 |
| CN106054459A (zh) * | 2016-08-18 | 2016-10-26 | 深圳创维－Rgb电子有限公司 | 一种制备超薄背光模组组件的方法、装置及电视机 |
| CN106405720A (zh) * | 2016-06-21 | 2017-02-15 | 合肥惠科金扬科技有限公司 | 导光板、导光板制作方法及背光模组、显示装置 |
| CN206247159U (zh) * | 2016-12-21 | 2017-06-13 | 深圳Tcl新技术有限公司 | 背光模组和显示设备 |
| CN107407832A (zh) * | 2015-03-09 | 2017-11-28 | 夏普株式会社 | 照明装置、显示装置以及电视接收装置 |
| CN107420856A (zh) * | 2017-07-11 | 2017-12-01 | 深圳市华星光电技术有限公司 | 一种反射片及其制作方法、背光模组 |
| CN109239837A (zh) * | 2018-11-09 | 2019-01-18 | 深圳Tcl新技术有限公司 | 导光板侧边反射片贴附工艺及导光板 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1735637A (zh) * | 2002-11-08 | 2006-02-15 | 三菱化学株式会社 | 可辐射固化树脂组合物及其固化产物 |
| KR20050068263A (ko) * | 2003-12-29 | 2005-07-05 | 엘지.필립스 엘시디 주식회사 | 적하식 조립공정을 이용하는 액정표시장치 |
| KR20100126389A (ko) * | 2008-02-22 | 2010-12-01 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | 선택된 출력 광속 분포를 갖는 백라이트 및 이를 사용한 디스플레이 시스템 |
| CN101747681B (zh) * | 2008-12-19 | 2012-07-18 | 京东方科技集团股份有限公司 | 油墨及其制备方法和制备膜材的方法 |
| CN101509987A (zh) * | 2009-03-19 | 2009-08-19 | 旭丽电子(广州)有限公司 | 导光板及使用该导光板的背光模组 |
| CN102411164B (zh) * | 2010-07-23 | 2013-07-31 | 颖台科技股份有限公司 | 导光装置及具有导光装置的背光模块与液晶显示器 |
| CN102707369A (zh) * | 2012-06-07 | 2012-10-03 | 昆山市诚泰电气股份有限公司 | 有色导光板及具有该有色导光板的led平面光源 |
| CN203444132U (zh) * | 2013-09-24 | 2014-02-19 | 陈蕾 | 导光板及包括该导光板的背光源led模组 |
| CN103777261B (zh) * | 2014-02-10 | 2016-03-02 | 张家港康得新光电材料有限公司 | 一种反射膜 |
| CN106681051A (zh) * | 2015-11-09 | 2017-05-17 | 宁波长阳科技股份有限公司 | 一种侧入式量子点显示模组用反射膜及其制备方法 |
-
2018
- 2018-11-09 CN CN201811336434.3A patent/CN109239837B/zh active Active
-
2019
- 2019-11-01 WO PCT/CN2019/115049 patent/WO2020093945A1/zh active Application Filing
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003007112A (ja) * | 2001-06-21 | 2003-01-10 | Casio Comput Co Ltd | 面光源 |
| CN102116893A (zh) * | 2011-03-10 | 2011-07-06 | 广州创维平面显示科技有限公司 | 导光板的制作方法、导光板、背光模块及液晶显示器 |
| CN203054415U (zh) * | 2012-12-06 | 2013-07-10 | 广州奥翼电子科技有限公司 | 一种改进型电子纸显示装置 |
| CN107407832A (zh) * | 2015-03-09 | 2017-11-28 | 夏普株式会社 | 照明装置、显示装置以及电视接收装置 |
| CN205103428U (zh) * | 2015-10-27 | 2016-03-23 | 翰博高新材料(合肥)股份有限公司 | 一种用于贴附导光板端面边缘反射片的装置 |
| CN106405720A (zh) * | 2016-06-21 | 2017-02-15 | 合肥惠科金扬科技有限公司 | 导光板、导光板制作方法及背光模组、显示装置 |
| CN106054459A (zh) * | 2016-08-18 | 2016-10-26 | 深圳创维－Rgb电子有限公司 | 一种制备超薄背光模组组件的方法、装置及电视机 |
| CN206247159U (zh) * | 2016-12-21 | 2017-06-13 | 深圳Tcl新技术有限公司 | 背光模组和显示设备 |
| CN107420856A (zh) * | 2017-07-11 | 2017-12-01 | 深圳市华星光电技术有限公司 | 一种反射片及其制作方法、背光模组 |
| CN109239837A (zh) * | 2018-11-09 | 2019-01-18 | 深圳Tcl新技术有限公司 | 导光板侧边反射片贴附工艺及导光板 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109239837B (zh) | 2020-11-03 |
| CN109239837A (zh) | 2019-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2013019025A2 (en) | Lighting device and liquid crystal display using the same | |
| CN101285961B (zh) | 使用光扩散剂的多功能光学多层膜 | |
| WO2011081351A2 (ko) | 패턴 도광판, 그 제조방법 및 이를 이용한 액정표시장치 백라이트 유닛 | |
| WO2012138123A2 (ko) | 조명장치 | |
| WO2016197422A1 (zh) | 背光模组及显示装置 | |
| WO2012086896A1 (en) | Back light unit and liquid crystal display using the same | |
| WO2017206366A1 (zh) | 背光模组和显示设备 | |
| CN108230914A (zh) | 显示装置及拼接显示装置 | |
| WO2020073382A1 (zh) | 显示面板和显示器 | |
| WO2014067191A1 (zh) | 背光模块及显示装置 | |
| WO2013035909A1 (en) | Back light unit within resin layer for light-guide and lcd using the same | |
| WO2013191395A1 (ko) | 휘도 증가를 위한 엘이디 광원을 갖는 실내외 액정표시장치 | |
| WO2019227647A1 (zh) | 背光模组、显示装置及背光模组的制作方法 | |
| WO2020124891A1 (zh) | 背光模组及显示装置 | |
| WO2020093945A1 (zh) | 导光板侧边反射片贴附工艺及导光板 | |
| KR101713947B1 (ko) | 평판표시장치용 차광테이프 및 그의 부착방법 | |
| WO2015156632A1 (ko) | 광학 부재, 및 이를 포함하는 백라이트 유닛 | |
| WO2019062239A1 (zh) | 背光模组及显示装置 | |
| WO2014098430A1 (ko) | 발광장치용 백시트 및 이를 이용한 발광장치 | |
| WO2018196348A1 (zh) | 背光模组和显示装置 | |
| CN208689196U (zh) | 一种微晶粉扩散片 | |
| WO2016108632A1 (ko) | 액정표시장치용 모듈 및 이를 포함하는 액정표시장치 | |
| WO2012124833A1 (ko) | 광학필름이 적층된 복합필름을 제조하는 방법 | |
| WO2020107709A1 (zh) | 背光模组及采用该背光模组的显示装置 | |
| WO2010011060A2 (en) | Prism sheet with improved front brightness and viewing angle, back light unit having the prism sheet, and liquid crystal display device having the back light unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19882106 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 19882106 Country of ref document: EP Kind code of ref document: A1 |