JPH03265889A - Light source device for display body - Google Patents
Light source device for display bodyInfo
- Publication number
- JPH03265889A JPH03265889A JP2063962A JP6396290A JPH03265889A JP H03265889 A JPH03265889 A JP H03265889A JP 2063962 A JP2063962 A JP 2063962A JP 6396290 A JP6396290 A JP 6396290A JP H03265889 A JPH03265889 A JP H03265889A
- Authority
- JP
- Japan
- Prior art keywords
- fine particles
- light source
- transparent layer
- layer
- light
- 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.)
- Pending
Links
- 239000002245 particle Substances 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 21
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 239000010419 fine particle Substances 0.000 claims description 70
- 125000000962 organic group Chemical group 0.000 claims description 14
- 229920002050 silicone resin Polymers 0.000 claims description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 13
- 229920001296 polysiloxane Polymers 0.000 claims description 13
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 6
- -1 polysiloxane Polymers 0.000 claims description 5
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 11
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000003973 paint Substances 0.000 description 39
- 239000010410 layer Substances 0.000 description 26
- 238000000034 method Methods 0.000 description 16
- 239000000463 material Substances 0.000 description 11
- 229920000178 Acrylic resin Polymers 0.000 description 8
- 239000004925 Acrylic resin Substances 0.000 description 8
- 239000011247 coating layer Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical group CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 238000004062 sedimentation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 125000000524 functional group Chemical group 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920001225 polyester resin Polymers 0.000 description 3
- 239000004645 polyester resin Substances 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 229920000180 alkyd Polymers 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 238000000635 electron micrograph Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 229920005668 polycarbonate resin Polymers 0.000 description 2
- 239000004431 polycarbonate resin Substances 0.000 description 2
- 229920000642 polymer Chemical group 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229920005990 polystyrene resin Polymers 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000012798 spherical particle Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 239000004923 Acrylic lacquer Substances 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical group OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000001227 electron beam curing Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 238000012643 polycondensation polymerization Methods 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野］
本発明は、例えば背面から照明が行われるバックライト
型液晶表示装置等に使用される光源装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a light source device used in, for example, a backlight type liquid crystal display device that is illuminated from the back.
［従来の技術］
従来、薄型の光源装置として、透明板の背面に乳白色系
の乱反射面を形成したものの端面に光源を対向させたも
のが使用されている。[Prior Art] Conventionally, as a thin light source device, a device in which a milky-white diffused reflection surface is formed on the back surface of a transparent plate and a light source is opposed to the end surface of the transparent plate has been used.
上記光源装置は、例えば液晶表示体を］−記透明板の裏
面側に配置し、透明板端面から透明板中に入射された光
源からの光を、乱反射面で反射することによって、透明
板の裏面側から液晶表示体の背面側へ照射するものであ
る。The above-mentioned light source device disposes, for example, a liquid crystal display on the back side of the transparent plate, and reflects light from a light source that enters into the transparent plate from the end face of the transparent plate on a diffusely reflecting surface. The light is irradiated from the back side to the back side of the liquid crystal display.
［発明が解決しようとする課題］
しかしながら、１−記従来の光源装置には、照度が低く
、照度のばらつきが大きいという問題がある。[Problems to be Solved by the Invention] However, the conventional light source device described in 1-1 has a problem in that the illuminance is low and the illuminance varies widely.
照度の低さは、光源の数を増やすことによって軽減でき
るが、透明板の各端面に対向させて光源を配置する必要
」−１この光源の数の増大には限度があり、さほど有効
な解決策とはならない。また、光源に近い透明板の端面
付近は照度が高くそこから遠ざかるにつれて照度が低下
してしまうことについても有効な解決策がない。Low illuminance can be alleviated by increasing the number of light sources, but it is necessary to place the light sources facing each end of the transparent plate.''-1 There is a limit to increasing the number of light sources, so there is no effective solution. It is not a strategy. Further, there is no effective solution to the problem that the illuminance is high near the end face of the transparent plate near the light source and decreases as the distance from there is high.
本発明は、−Ｉ−記従来の問題点に鑑みてなされたもの
で、光源装置における照度とその均一性を向−１−させ
ることを解決すべき課題とするものである。The present invention has been made in view of the problems of the prior art described in -I-, and an object to be solved is to improve the illuminance and its uniformity in a light source device.
［課題を解決するための手段及び作用］Ｉ−記課題を解
決するために講じられた手段を第１図で説明すると、請
求項第１項の発明では、透明層１の裏面に該透明層１よ
り屈折率の低い微粒子−が塗布された導光板７を有する
表示体用光源装置とするという手段を講じているもので
ある。[Means and effects for solving the problem] The means taken to solve the problem I--I will be explained with reference to FIG. The light source device for a display has a light guide plate 7 coated with fine particles having a refractive index lower than 1.
また、請求項第２項の発明においては、透明層１の裏面
に該透明層ｌより屈折率の低い微粒子が塗Ａｉされた導
光板７の端面に光源４が対向されており、かつ」−記微
粒子が、光源４と対向する導光板７の端面から遠ざかる
につれて、微粒子の濃度が高くなるよう塗布されている
表示体用光源装置とするという手段を講じているもので
ある。In addition, in the invention of claim 2, the light source 4 is opposed to the end face of the light guide plate 7 whose back surface of the transparent layer 1 is coated with fine particles having a lower refractive index than the transparent layer l, and In the light source device for a display, the fine particles are coated so that the concentration of the fine particles increases as the distance from the end face of the light guide plate 7 facing the light source 4 increases.
更に請求印第３項の発明においては、１−記請求項第１
項又は第２ダ１の発明において、透明層１より屈折率の
低い微粒子を、珪素原子に有機基が直結したポリシロキ
サン結合をなす固体状のシリコーン樹脂からなる数平均
粒子径０．１〜１００μｍの球状微粒子とするという手
段を講じているものである。Furthermore, in the invention of claim mark No. 3,
In the invention of item 2 or 1, the fine particles having a lower refractive index than the transparent layer 1 are made of a solid silicone resin having a polysiloxane bond in which an organic group is directly bonded to a silicon atom and have a number average particle size of 0.1 to 100 μm. This method takes the form of spherical fine particles.
以下、更に本発明を説明する。The present invention will be further explained below.
本発明の光源装置は、例えばパンクライト型液晶表小装
置等に使用される薄型の光源装置で、第１図、第３図に
示されるように、透明層１の背面に微粒子塗布層２を設
け、更にその外側に反射層３を設けたものを導光板７と
し、この導光板７の端面に対向して光源４を設けたもの
である。The light source device of the present invention is a thin light source device used for, for example, a puncture light type liquid crystal display device, and as shown in FIGS. 1 and 3, a fine particle coating layer 2 is coated on the back surface of a transparent layer 1. A light guide plate 7 is formed by providing a reflective layer 3 on the outer side of the light guide plate 7, and a light source 4 is provided opposite the end face of the light guide plate 7.
本光源装置を、例えばバックライト型液晶表示装置に利
用する場合、図面上−点鎖線で示されるように液晶表示
体８が位置される。そして、光源４からの光が、図中符
合５で示される矢印のように、反射層３及σ微粒子塗Ｉ
ｊ層２で反射されて、液晶表示体８をその背面より照ら
すものである。When this light source device is used, for example, in a backlight type liquid crystal display device, the liquid crystal display body 8 is positioned as shown by the dotted chain line in the drawing. Then, the light from the light source 4 is transmitted to the reflective layer 3 and the σ fine particle coating I as shown by the arrow 5 in the figure.
The light is reflected by the j layer 2 and illuminates the liquid crystal display 8 from its back side.
尚、第１図においては導光板７の一端面に対向して光源
４が配置され、第３図においては相対向する乙端面に対
向して光源４が配置されているが、光源４は更に三端面
又は四端面金てに対向して配置してもよい。また、各端
面に対向する光源４は、単数でも複数でもよい。In addition, in FIG. 1, the light source 4 is arranged opposite to one end surface of the light guide plate 7, and in FIG. 3, the light source 4 is arranged opposite to the opposing end surface. It may be placed facing the three end faces or the four end faces. Moreover, the light source 4 facing each end face may be singular or plural.
未発明に述べる透明層１とは、例えばアクリル樹脂、ポ
リスチレン樹脂、ポリカーボネート樹脂、ポリエステル
樹脂、ポリ塩化ビニル樹脂等の透明樹脂やガラスのよう
な無機透明材料等から成る透明な層であり、全光線透過
率が高いもの程好ましく、アクリル樹脂板が最も好まし
い。The transparent layer 1 described herein is a transparent layer made of a transparent resin such as acrylic resin, polystyrene resin, polycarbonate resin, polyester resin, or polyvinyl chloride resin, or an inorganic transparent material such as glass, and is transparent to all light rays. The higher the transmittance, the more preferable it is, and the most preferable is an acrylic resin plate.
本発明に述べる透明層１より屈折率が低い微粒子とは、
透明層１を形成する透明物質より屈折率が低い微粒−ｒ
であり、好ましくは屈折率で０．０１以１−低く、更に
好ましくは０．０３以−１−低い微粒子である。透明層
１を形成する物質がアクリル樹脂であれば、アクリル樹
脂の屈折率１．４８より０．０１以り低い１．４８以下
の屈折率を有する微粒子が好ましい。The fine particles having a lower refractive index than the transparent layer 1 described in the present invention are:
Fine particles -r having a lower refractive index than the transparent material forming the transparent layer 1
The fine particles preferably have a refractive index of 0.01 or more, and more preferably 0.03 or more. If the material forming the transparent layer 1 is an acrylic resin, fine particles having a refractive index of 1.48 or less, which is 0.01 or more lower than the refractive index of the acrylic resin, 1.48, are preferable.
微粒子の大きさは数平均粒子径が０．１〜１００ μｍ
ｍの範囲であることか好ましく、更に好ましくは０．５
〜５０μｍ、特に１〜３０μｍｍが好ましい。数平均粒
子径が０．１４ｍ未満であると、所望の光拡散効率が得
にくくなる。また、数平均粒子−径が１００ ｐ、ｍを
越えると、暗くなりやすい他、二次加工時に微粒子周辺
に欠陥が生じやすく、品質の一定した導光板７が得にく
くなる。The number average particle size of the fine particles is 0.1 to 100 μm.
It is preferably within the range of m, more preferably 0.5
~50 μm, particularly 1 to 30 μm is preferred. If the number average particle diameter is less than 0.14 m, it becomes difficult to obtain the desired light diffusion efficiency. Furthermore, if the number average particle diameter exceeds 100 p, m, it tends to become dark and defects are likely to occur around the fine particles during secondary processing, making it difficult to obtain a light guide plate 7 of consistent quality.
尚、上記数モ均粒子径は、次の条件による測定値をいう
。In addition, the above-mentioned average particle diameter refers to a value measured under the following conditions.
測定装置：遠心式自動粒度分布測定装置（パーティクル
アナライザー）
（タイプ）ＣＡＰＡ−５００型
（装置メーカー）目立］二機製
測定方式：高速遠心沈降法と自然沈降法を採用した光透
過式液相沈降粒度分布測定法に
より数平均粒子径を算出する。Measuring device: Centrifugal automatic particle size distribution measuring device (particle analyzer) (Type) CAPA-500 model (device manufacturer) Made by two machines Measuring method: Light transmission liquid phase sedimentation using high-speed centrifugal sedimentation method and natural sedimentation method The number average particle diameter is calculated by particle size distribution measurement method.
分散媒体 界面活性剤水溶液
分散条件：超音波分散
本発明に用いる微粒子の粒子形状は、不定形ではなく、
だ円形又は真球形状（両者を含めて「球状」という）、
特に真球形状であることが好ましい。不定形の微粒−ｆ
−では後述する透明性塗料への混合時の分散性に劣り、
二次凝集により微粒子が肥大化し、沈降、沈殿を生じや
すく、微粒子塗布層２が光学的均一性に欠けたものとな
りやすい。Dispersion medium Surfactant aqueous solution Dispersion conditions: Ultrasonic dispersion The particle shape of the fine particles used in the present invention is not amorphous;
Oval or true spherical shape (both are collectively referred to as "spherical"),
In particular, a true spherical shape is preferred. Irregularly shaped fine particles-f
− has poor dispersibility when mixed into transparent paints, which will be described later.
Due to secondary aggregation, the fine particles become enlarged and tend to cause sedimentation and sedimentation, and the fine particle coating layer 2 tends to lack optical uniformity.
これに対して球状、特に真球形状のものはこの心配がな
く、分散性に優れ、良好な光学的特性を得やすい。On the other hand, spherical particles, especially true spherical particles, do not have this problem, have excellent dispersibility, and are easy to obtain good optical properties.
微粒子を透明層１に塗７１ｊシて微粒子塗布層２を形成
する方法は、透明性塗料に微粒子を分散させて塗布する
ことで行うことができる。透明性塗料は硬化した塗膜の
屈折率が透明層１と同−又はそれに近いことが好ましく
、微粒子の屈折率より００１以−１−１更には０．０３
以」二大きいことが好ましい。The method of coating 71j the fine particles on the transparent layer 1 to form the fine particle coating layer 2 can be carried out by dispersing the fine particles in a transparent paint and applying the same. It is preferable that the refractive index of the cured transparent paint film is the same as that of the transparent layer 1 or close to it, and is 001 or more -1-1 or more preferably 0.03 than the refractive index of the fine particles.
It is preferable that the value is greater than or equal to "2".
本発明において、最も好ましい透明層１と微粒子の組み
合わせは、透明層１がアクリル樹脂であり、微粒子が、
珪素原子に有機基が直結したポリシロキサン結合をなす
固体状のシリコーン樹脂から成る数平均粒径０．１〜１
００ μｍｍ （好ましくは０．５〜５０μｍ、特に１
〜３０ｇｍ）の球状微粒子である組み合わせである。In the present invention, the most preferable combination of the transparent layer 1 and fine particles is that the transparent layer 1 is made of acrylic resin and the fine particles are
A number average particle size of 0.1 to 1 consisting of a solid silicone resin that forms a polysiloxane bond in which an organic group is directly connected to a silicon atom.
00 μmm (preferably 0.5 to 50 μm, especially 1
This is a combination of spherical fine particles of ~30gm).
次に微粒子として最も好ましいシリコーン樹脂の微粒子
について詳しく説明する。Next, the most preferable silicone resin fine particles will be explained in detail.
本発明に特に好ましいシリコーン樹脂としては、珪素原
子に有機基が直結し、残りの結合が酸素と直結しており
、珪素原子と酸素が繰り返すシロキサン結合でポリマー
となったものである。このシリコーン樹脂は、常温又は
それ以１−の温度で固体状である。また、更に好ましく
は該シロキサン結合が三次元の網状構造を示す固体状ポ
リマーである。珪素原子に結合する有機基の数は、その
種類等によっても異なるが、好ましくは平均で０．５〜
１．５個、より好ましくはＯ，７〜１．３個である。Particularly preferred silicone resins for the present invention are those in which an organic group is directly bonded to a silicon atom, the remaining bonds are directly bonded to oxygen, and a polymer is formed by repeating siloxane bonds between silicon atoms and oxygen. This silicone resin is solid at room temperature or 1-degrees higher. Further, a solid polymer in which the siloxane bonds exhibit a three-dimensional network structure is more preferable. The number of organic groups bonded to silicon atoms varies depending on the type, etc., but is preferably 0.5 to 0.5 on average.
1.5 pieces, more preferably 0,7 to 1.3 pieces.
珪素原子に結合した有機基で覆われた裏面を有し、特に
球状をなすシリコーン樹脂の微粒イは、有機溶剤に良好
に分散して溶剤の粘度を高める効果を示す。本発明で用
いられる球状のシリコーン樹脂微粒子としては、溶剤に
分散した時の粘度（溶剤がｎ−へキサン、微粒子の混合
量がｎ−ヘキサンに対し］０Ｏｖｔｚ、常温、Ｂ型回転
粘度計、ＥｉＯｒｐｍで測定）２００〜５００ｃｐｓを
示すものが好ましく採用される。更に望ましくは３００
〜４００ｃｐｓを示すのものである。Particularly spherical silicone resin particles having a back surface covered with an organic group bonded to a silicon atom are well dispersed in an organic solvent and have the effect of increasing the viscosity of the solvent. The spherical silicone resin fine particles used in the present invention have a viscosity when dispersed in a solvent (the solvent is n-hexane, the amount of fine particles mixed with n-hexane) is 0 Ovtz, room temperature, B-type rotational viscometer, EiOrpm. (measured at ) 200 to 500 cps is preferably employed. More preferably 300
~400 cps.
第６図に、本発明に好ましく用いられるシリコーン樹脂
の球状微粒子の分子構造モデルの一例を示す。FIG. 6 shows an example of a molecular structure model of spherical fine particles of silicone resin preferably used in the present invention.
第６図のモデルは、シロキサン結合が正次元に伸びた網
状構造であり、珪素原子に１個の有機基が結合した構造
である。このモデルは本発明の実施態様としては最も好
ましい例である。The model shown in FIG. 6 has a network structure in which siloxane bonds extend in the positive dimension, and has a structure in which one organic group is bonded to a silicon atom. This model is the most preferred embodiment of the present invention.
ここで述べるシリコーン樹脂は、カラスのような無機的
性質と有機基による有機的な性質とを合わせ持つ中間的
な性質の物質である。また、第６図に示した如く、球状
のシリコーン樹脂微粒子裏面は珪素原子に強固に直結し
た有機基に覆われた構造となっているので、透明性塗料
への分散性がきわめて良好である。更にはきわめて意外
な効果として、光学的特性の著しい改善に寄与すること
が、本発明者により確認されている。The silicone resin described here is a substance with intermediate properties that has both inorganic properties such as glass and organic properties due to organic groups. Furthermore, as shown in FIG. 6, the back surface of the spherical silicone resin fine particles has a structure covered with organic groups that are directly and firmly bonded to silicon atoms, so that the dispersibility in transparent paints is extremely good. Furthermore, the present inventor has confirmed that, as a very unexpected effect, it contributes to a significant improvement in optical properties.
ここで用い得る有機基としては、例えばメチル基、エチ
ル基、プロピル基、ブチル基等のアルカンノ、髪はもと
より、例えばカルボキシル基、カルボニルノル、エステ
ルノル、エーテル基等、本発明に用いる透明性塗料に対
して親和力を有する４１機基を含む。代表的な有機基と
してはメチル基が挙げられる。Examples of organic groups that can be used here include alkano groups such as methyl group, ethyl group, propyl group, butyl group, and hair, as well as carboxyl groups, carbonyl groups, ester groups, and ether groups. Contains 41 aircraft groups that have an affinity for. A typical organic group is a methyl group.
珪素原子に直結した前記有機基が平均で０．５個未満で
あると、微粒子塗布層ｊ層２を形成するための透明性塗
料中の塗膜形成材料への単分散が困難となる傾向となっ
たり、ｒｌｉ分散しても二次凝集か生じ、微粒−ｆか肥
大化し、光学的な均一性が得にくくなる傾向となること
もあり得る。If the number of organic groups directly bonded to silicon atoms is less than 0.5 on average, monodispersion into the coating film forming material in the transparent paint for forming the fine particle coating layer J layer 2 tends to be difficult. Even if rli dispersion is performed, secondary aggregation may occur, and the fine particles -f may become enlarged, making it difficult to obtain optical uniformity.
−・方、珪素原子に直結した有機基が平均で１．５個を
越えた場合、ポリシロキサン結合の三次元網状構造体の
形成や球状の形成か生じかたくなった０
リ、あるいはまた外部応力で容易に変形しやすい微粒子
となったりする傾向が出ることもある。- On the other hand, if the number of organic groups directly bonded to silicon atoms exceeds 1.5 on average, the formation of a three-dimensional network structure of polysiloxane bonds or the formation of a spherical structure becomes difficult, or external stress There may also be a tendency for the particles to become easily deformed.
本発明に好ましく使用されるシリコーン樹脂の球状微粒
子を製造するための原料としては、例えば官能基３個を
持つ加水分解性シランが挙げられる。加水分解と縮合上
程によって次にような反応機構を経て、第６図のような
三次元的網目構造をとる微粒子が形成されると推定され
ている。Examples of raw materials for producing spherical fine particles of silicone resin preferably used in the present invention include hydrolyzable silane having three functional groups. It is estimated that fine particles having a three-dimensional network structure as shown in FIG. 6 are formed through the following reaction mechanism due to the hydrolysis and condensation process.
この加水分解と重縮合反応の工程において、使用される
加水分解性シランの官能基および４１機基の種類、加水
分解触媒の種類と量（酸、アルカ）ノ）、反応装置の構
造、攪拌条件によって微粒子の形状、粒径が微妙に影響
され、これら微粒子形成時の影響因子の制御により、所
望のものをつ〈１す
ることが６丁能となる。In this hydrolysis and polycondensation reaction process, the type of functional group and functional group of the hydrolyzable silane used, the type and amount of the hydrolysis catalyst (acid, alkali), the structure of the reaction equipment, and the stirring conditions. The shape and particle size of the fine particles are subtly influenced by these factors, and by controlling these influencing factors during the formation of fine particles, it is possible to obtain the desired particles.
以ｌ−説明したシリコーン樹脂の屈折率は１．４３〜１
．４４であり、透明層１として用いられるアクリル樹脂
、ポリスチレン樹脂、ポリカーボネート樹脂等より低く
、特にその球状（最適には真球状）微粒子は、本発明に
好適に使用できる。The refractive index of the silicone resin described below is 1.43 to 1.
．． 44, which is lower than that of the acrylic resin, polystyrene resin, polycarbonate resin, etc. used for the transparent layer 1, and in particular, its spherical (optimally spherical) fine particles can be suitably used in the present invention.
ｉｆＪ述のように、上記球状のシリコーン樹脂微粒子並
びにその他の微粒子は、透明性塗料に配合され、透明層
１に塗布されて微粒子塗布層２を形成する。As described in ifJ, the spherical silicone resin fine particles and other fine particles are blended into a transparent paint and applied to the transparent layer 1 to form the fine particle coating layer 2.
」−記透明性塗料としては、例えば溶剤蒸発型のニトロ
セルロースランカー、塩化ビニル樹脂塗料、アクリルラ
ッカー酸化重合型の油性調合ペイント、合成樹脂調合ペ
イント、フタル酸樹脂塗料、フェノール樹脂塗料、塩化
ゴム塗料、シリコーンアルキド樹脂塗料、イ′−１加重
合型の不飽和ポリエステル樹脂塗料、紫外線硬化塗料、
電子線硬化塗料、エポキシ樹脂塗料、ポリウレタン樹脂
塗料（ポリイソシアナート−ポリオール樹脂）、加熱縮
合重合型のアミノアルキド樹脂塗ネ；１、アミン ２
アクリル樹脂塗料、アミンポリエステル樹脂塗料、シリ
コンポリエステル樹脂塗料等が使用できる。Examples of transparent paints include solvent evaporation type nitrocellulose lunker, vinyl chloride resin paint, acrylic lacquer oxidation polymerization type oil-based paint, synthetic resin paint, phthalic acid resin paint, phenol resin paint, and chlorinated rubber paint. , silicone alkyd resin paint, i'-1 polymerization type unsaturated polyester resin paint, ultraviolet curing paint,
Electron beam curing paint, epoxy resin paint, polyurethane resin paint (polyisocyanate-polyol resin), heat condensation polymerization type amino alkyd resin paint; 1. Amine 2. Acrylic resin paint, amine polyester resin paint, silicone polyester resin paint, etc. can be used.
■−記塗料のうち本発明においては特に光学的性質が要
求されるという点から、硬化した塗膜の透明性に可能な
限り優れているものを選定することが必要である。更に
微粒子の分散性、塗装加工性に優れている塗料であるこ
とが好ましい。また、耐候性、耐擦傷性、耐薬品性、耐
溶剤性等に優れていることが好ましい。(2) Among the paints mentioned above, since optical properties are particularly required in the present invention, it is necessary to select a paint whose cured coating film is as excellent in transparency as possible. Further, it is preferable that the coating material has excellent dispersibility of fine particles and coating processability. It is also preferable that the material has excellent weather resistance, scratch resistance, chemical resistance, solvent resistance, and the like.
これら塗料に史に心安に応じて溶剤を追加混合し、粘度
調整し、膜形成能、塗工性能を高めるのが通常である。Usually, solvents are added to these paints according to historical standards to adjust the viscosity and improve film-forming ability and coating performance.
使用される溶剤の種類、混合量は、採用する塗工方法、
目的とする塗膜厚さ、使用する塗膜形成材料の種類、乾
燥方法、硬化方法とその条件等によって適正な塗料、混
合量が決定される。The type and amount of solvent used depends on the coating method used,
Appropriate coating materials and mixing amounts are determined depending on the desired coating film thickness, the type of coating film forming material used, the drying method, curing method and conditions, etc.
１−記透明性塗料中への微粒子の添加量は、透明性塗料
中に存在する塗膜形成材料に対して１〜７０ｗｔ％石１
度が好ましく、更に好ましくは２０〜６０ｗｔ％３
である。1- The amount of fine particles added to the transparent paint is 1 to 70 wt% stone 1 based on the film forming material present in the transparent paint.
The content is preferably 20 to 60 wt%3.
微粒子の透明性塗料への分散は、塗膜形成材料に直接混
合分散せしめることも可能であり、また塗膜形成材料と
溶剤との混合液、つまり塗料中に混合分散せしめること
も可能である。The fine particles can be dispersed in a transparent paint by directly mixing and dispersing them in a coating material, or by mixing and dispersing them in a mixed solution of a coating material and a solvent, that is, a coating material.
かくして得られた、微粒子が混合分散された透明性塗料
は、透明層ｌの裏面に塗布され、加熱等で硬化されて微
粒子塗布層２を形成する。The thus obtained transparent paint in which fine particles are mixed and dispersed is applied to the back surface of the transparent layer 1, and is cured by heating to form a fine particle coating layer 2.
塗料の塗布方法については、用途、要求性能、経済性等
を考慮し、最適な方法を選択すればよい。一般に塗料の
塗布方法としては、例えばスプレー塗装法、スクリーン
印刷法、グラビア印刷法、オフセット印刷法、バロット
印刷法等、幾多の方法があり、いずれの方法も採用可能
である。As for the method of applying the paint, the optimum method may be selected in consideration of the application, required performance, economic efficiency, etc. Generally, there are many methods for applying a paint, such as a spray coating method, a screen printing method, a gravure printing method, an offset printing method, and a ballot printing method, and any of these methods can be employed.
但し、いずれの方法を採用するにしても、コーティング
加Ｙ二性、作業性、品質の安定性等の観点から、適ロニ
な粘度に塗料を調整することが好ましい。However, whichever method is adopted, it is preferable to adjust the paint to an appropriate viscosity from the viewpoints of coating properties, workability, quality stability, etc.
微粒子を分散混合した塗料の塗４１に際しては、光源４
と対向する導光板７の端面から遠ざかるに ４
つれて微粒子の濃度が高くなるよう塗布することが好ま
しい。When applying the paint 41 in which fine particles are dispersed and mixed, a light source 4 is used.
It is preferable to apply the coating so that the concentration of the fine particles increases as the distance from the end face of the light guide plate 7 facing the light guide plate 7 increases.
第２図は、第１図に示される光源装置における塗料の塗
布状態を示すもので、微粒子を含む塗料がライン６とし
て塗布されており、このライン６が光源４から遠ざかる
ほど密に形成されていることによって、微粒子の濃度が
光源４から遠ざかるほど高くなっている。FIG. 2 shows the state of paint application in the light source device shown in FIG. As a result, the concentration of fine particles increases as the distance from the light source 4 increases.
第４図及び第５図は、いずれも第３図に示される光源装
置における塗料の塗布状態を示すもので、第４図ではラ
イン６が横に、第５図ではライン６が縦横に形成されて
おり、いずれも中央部のライン６が両端部に比して密に
形成されていることによって、微粒子の密度が光源４か
ら遠ざかるほど高くなっている。4 and 5 both show the state of paint application in the light source device shown in FIG. 3. In FIG. 4, lines 6 are formed horizontally, and in FIG. 5, lines 6 are formed vertically and horizontally. In both cases, the lines 6 at the center are formed more densely than at both ends, so that the density of the fine particles increases as the distance from the light source 4 increases.
このようにして微粒子の密度を光源４から遠ざかるほど
高くすると、光源４から離れていることによって照度が
低ドしがちな領域の照度を白しさせることができ、全体
の照度の均一化を図ることができる。また、」−記微粒
子の密度変化付けた塗 ５
料の塗布は、」−述のライン６としての塗布の他、連続
的に塗料の塗布液を変化させながら塗布するること等に
よっても行うことができる。In this way, by increasing the density of fine particles as the distance from the light source 4 increases, it is possible to whiten the illuminance in areas where the illuminance tends to be low due to the distance from the light source 4, thereby making the overall illuminance uniform. be able to. Furthermore, the application of the paint with varying density of fine particles may be carried out not only by applying as line 6 as described in the above, but also by applying the paint while continuously changing the coating liquid. I can do it.
反射層３は、できるだけ光を透過させずに反射できるも
のであればよく、例えばアルミニウムの蒸着膜等によっ
て形成される。The reflective layer 3 may be any material as long as it can reflect light without transmitting it as much as possible, and is formed of, for example, a vapor-deposited aluminum film.
「実施例」
微粒子として、珪素原子に３個の加水分解性官能基と、
１個のメチル基を有する原料シランを加水分解反応させ
、次いで縮合反応させて微粒子化した網状構造体をなす
固体状のシリコーン系球状微粒子を使用した。"Example" As fine particles, a silicon atom has three hydrolyzable functional groups,
Solid silicone-based spherical fine particles having a network structure formed by subjecting a raw material silane having one methyl group to a hydrolysis reaction and then a condensation reaction to form fine particles were used.
１核シリコーン系球状微粒子は、出発原料からして当然
珪素原ｆ−に結合する有機基はメチル基であり、その数
は１個である。これは、商品名「トスパール１２０」
（東芝シリコーン製）として市販されており、ｎ−へキ
サン分散液の粘度が３７０ｃｐｓで、屈折イｉは１．４
３〜１４４である。In the mononuclear silicone spherical fine particles, the organic group bonded to the silicon atom f- from the starting material is naturally a methyl group, and the number thereof is one. This is the product name "Tospearl 120"
(manufactured by Toshiba Silicone), the viscosity of the n-hexane dispersion is 370 cps, and the refractive index i is 1.4.
3 to 144.
Ｉ−記「トスパール１２０」の電子顕微鏡写真の模式図
を第７図に示す。第７図に示されるよう ６
に、「トスパール１２０」は１個々の粒子径が極めてよ
く揃った球状単分散の微粒子であることが分る。A schematic diagram of an electron micrograph of "Tospearl 120" labeled I- is shown in FIG. As shown in FIG. 7, "Tospearl 120" is found to be spherical monodisperse fine particles with extremely uniform individual particle diameters.
「トスパール１２０」の粒度分布を第８図に丞す。第３
図に示されるように、「トスパール１２０」は、比較的
狭い粒度分布を持つ微粒子であり、その平均粒子径は２
Ｉｊ、ｍである。The particle size distribution of "Tospearl 120" is shown in Figure 8. Third
As shown in the figure, "Tospearl 120" is a fine particle with a relatively narrow particle size distribution, and its average particle size is 2.
Ij, m.
イソプロピルアルコールを主成分とする溶剤で希釈した
アクリル系裏面硬化透明塗料（Ｅ￥川用料製品所製、商
品名ｒＧＩｉｔｔｅｒ ＵＶ２００−４５Ｊ ）に上記
シリコーン系球状微粒″ｆ（東芝シリコーン製、商品名
「トスパール１２０Ｊ）を２０ｗｔＸ添加し、攪拌機で
混合分散させた。The above-mentioned silicone-based spherical fine particles "f" (manufactured by Toshiba Silicone, product name: 20wtX of Tospearl 120J) was added and mixed and dispersed using a stirrer.
次いで、−１Ｌ記の塗料を第５図に示されるようなライ
ンパターンに、アクリル樹脂（屈折率１．４９）製の透
明層にスクリーン印刷した。即ち、光源と対向する端面
から遠ざかるにつれて微粒子が密になるよう印刷した。Next, the paint labeled -1L was screen printed on a transparent layer made of acrylic resin (refractive index 1.49) in a line pattern as shown in FIG. That is, printing was performed so that the fine particles became denser as they moved away from the end face facing the light source.
このようにして得られた導光板を用いて第３図に示され
るような光源装置としたところ、得られ ７
た光源装置は明るくかつ明るさが均一で、色温度が高く
優れたものであった。When the light guide plate thus obtained was used to create a light source device as shown in Figure 3, the resulting light source device was bright and uniform in brightness, and had a high color temperature. Ta.
［発明の効果］
本願発明は、以ヒ説明した通りのものであり、光源装置
を明るくかつ均一な明るさのものとすることができるの
で、光源装置を用いた各種の表示装置による表示を一層
見やすいものとすることができる。[Effects of the Invention] The present invention is as explained below, and since the light source device can be made bright and have uniform brightness, the display by various display devices using the light source device can be further improved. It can be made easier to see.
第１図は本発明に係る光源装だの−・例を示す説明図、
第２図はその導光板における微粒子塗布層形成パターン
の一例を示す図、第３図は本発明に係る光源装置の他の
例を示す説明図、第４図及び第５図は各々その導光板に
おける微粒子塗４５層形成パターンの例を示す図、第６
図は本発明に好ましく使用できるシリコーン系球状微粒
子の分子構造モデル、第７図は実施例で用いたシリコー
ン系球状微粒子の電−子顕微鏡写真の模式図、第７図は
同微粒イの粒度分／１ｊを示すグラフである。
ｌ・透明層、２ 微粒子−塗！Ｈｊ層、３ 反射層 ８
４ ：
光源、
５ ：
反射光
６ ：
イ
導光
板、
液晶表示体。FIG. 1 is an explanatory diagram showing an example of a light source device according to the present invention;
FIG. 2 is a diagram showing an example of the fine particle coating layer formation pattern on the light guide plate, FIG. 3 is an explanatory diagram showing another example of the light source device according to the present invention, and FIGS. 4 and 5 are respectively the light guide plate. Fig. 6 shows an example of the formation pattern of 45 layers of fine particle coating in
The figure shows a molecular structure model of silicone-based spherical fine particles that can be preferably used in the present invention, Figure 7 is a schematic diagram of an electron micrograph of silicone-based spherical fine particles used in Examples, and Figure 7 shows the particle size of the same fine particles A. It is a graph showing /1j. l・Transparent layer, 2 Fine particle coating! Hj layer, 3 reflective layer 8 4: light source, 5: reflected light 6: A light guide plate, liquid crystal display.
Claims (3)
が塗布された導光板を有することを特徴とする表示体用
光源装置。(1) A light source device for a display, comprising a light guide plate coated with fine particles having a refractive index lower than that of the transparent layer on the back surface of the transparent layer.
が塗布された導光板の端面に光源が対向されており、か
つ上記微粒子が、光源と対向する導光板の端面から遠ざ
かるにつれて、微粒子の濃度が高くなるよう塗布されて
いることを特徴とする表示体用光源装置。(2) A light source is opposed to an end surface of a light guide plate whose back surface of a transparent layer is coated with fine particles having a refractive index lower than that of the transparent layer, and as the fine particles move away from the end surface of the light guide plate facing the light source, A light source device for a display, characterized in that the coating is applied to increase the concentration of fine particles.
機基が直結したポリシロキサン結合をなす固体状のシリ
コーン樹脂からなる数平均粒子径０．１〜１００μｍの
球状微粒子であることを特徴とする請求項第１項又は第
２項の表示体用光源装置。(3) The fine particles having a refractive index lower than that of the transparent layer are spherical fine particles having a number average particle diameter of 0.1 to 100 μm and made of solid silicone resin that forms a polysiloxane bond in which an organic group is directly bonded to a silicon atom. A light source device for a display according to claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2063962A JPH03265889A (en) | 1990-03-16 | 1990-03-16 | Light source device for display body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2063962A JPH03265889A (en) | 1990-03-16 | 1990-03-16 | Light source device for display body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03265889A true JPH03265889A (en) | 1991-11-26 |
Family
ID=13244441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2063962A Pending JPH03265889A (en) | 1990-03-16 | 1990-03-16 | Light source device for display body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03265889A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1021720A (en) * | 1996-06-27 | 1998-01-23 | Nec Corp | Backlight device |
| EP1079264A2 (en) * | 1999-08-23 | 2001-02-28 | Minebea Co., Ltd. | Spread illuminating apparatus having groove portions obliquely arranged |
| US6415531B1 (en) | 1995-05-23 | 2002-07-09 | Sharp Kabushiki Kaisha | Plane-shaped lighting device and a display using such a device |
| WO2003032073A1 (en) * | 2001-09-27 | 2003-04-17 | Tsujiden Co., Ltd. | Reflective film |
| JP2010146772A (en) * | 2008-12-16 | 2010-07-01 | Kuraray Co Ltd | Light guide plate, and method of manufacturing the same |
| WO2011104765A1 (en) * | 2010-02-26 | 2011-09-01 | 株式会社クラレ | Light-guide plate and method for manufacturing a light-guide plate |
| CN107884985A (en) * | 2016-09-30 | 2018-04-06 | 乐金显示有限公司 | Liquid crystal display device |
-
1990
- 1990-03-16 JP JP2063962A patent/JPH03265889A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6415531B1 (en) | 1995-05-23 | 2002-07-09 | Sharp Kabushiki Kaisha | Plane-shaped lighting device and a display using such a device |
| JPH1021720A (en) * | 1996-06-27 | 1998-01-23 | Nec Corp | Backlight device |
| EP1079264A2 (en) * | 1999-08-23 | 2001-02-28 | Minebea Co., Ltd. | Spread illuminating apparatus having groove portions obliquely arranged |
| EP1079264A3 (en) * | 1999-08-23 | 2004-04-28 | Minebea Co., Ltd. | Spread illuminating apparatus having groove portions obliquely arranged |
| US7095399B1 (en) | 1999-08-23 | 2006-08-22 | Minebea Co., Ltd. | Spread illuminating apparatus with transparent substrate having groove portions obliquely arranged and intersecting one another |
| WO2003032073A1 (en) * | 2001-09-27 | 2003-04-17 | Tsujiden Co., Ltd. | Reflective film |
| CN100362407C (en) * | 2001-09-27 | 2008-01-16 | 株式会社智积电 | Reflective film |
| JP2010146772A (en) * | 2008-12-16 | 2010-07-01 | Kuraray Co Ltd | Light guide plate, and method of manufacturing the same |
| WO2011104765A1 (en) * | 2010-02-26 | 2011-09-01 | 株式会社クラレ | Light-guide plate and method for manufacturing a light-guide plate |
| JP5436655B2 (en) * | 2010-02-26 | 2014-03-05 | 株式会社クラレ | Light guide plate and light guide plate manufacturing method |
| CN107884985A (en) * | 2016-09-30 | 2018-04-06 | 乐金显示有限公司 | Liquid crystal display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107110996B (en) | Forming low-refractive-index layer and anti-reflective film including it | |
| CN1738711B (en) | Laminate containing silica and application composition for forming porous silica layer | |
| JPH0516002B2 (en) | ||
| CN101400492B (en) | Optical film and method for producing same | |
| CN103013205A (en) | Curable resin composition for hard coat layer and hard coat film | |
| EP2130878A1 (en) | Double layer coating, its preparation and its use for rendering ultra water-repellent and antireflective the surfaces to which it is applied | |
| CN107438778B (en) | Low-index layer and antireflective coating comprising the low-index layer | |
| CN107236367B (en) | Temperature-sensing reversible color-changing UV (ultraviolet) ink for PVC (polyvinyl chloride), and preparation method and use method thereof | |
| JP2009271536A (en) | Antiglare film and manufacturing method | |
| JP7402609B2 (en) | Low sparkle matte coat and manufacturing method | |
| CN101012343A (en) | Ultraviolet-resistant coating composition and ultraviolet-resistant thin film | |
| CN105907287A (en) | Anti-ultraviolet anti-glare anti-fingerprint hardness-increasing coating liquid composition, coating and preparation method of coating | |
| CN108628080A (en) | A kind of line holographic projections film and its preparation method and application | |
| JPH03265889A (en) | Light source device for display body | |
| KR20130041347A (en) | Methods for manufacturing light-diffusing element and polarizing plate with light-diffusing element, and light-diffusing element and polarizing plate with light-diffusing element obtained by same methods | |
| CN111748270B (en) | Coating for projection screen and preparation method thereof | |
| CN108139668A (en) | It is used to form the photo curable coating composition of low-index layer | |
| CN109195793A (en) | Plexiglas plate and its manufacturing method | |
| CN110936693B (en) | Scattered light adjusting film with small change of full-angle light transmittance and preparation method thereof | |
| CN101581802B (en) | Anti-glare film and method for manufacturing same | |
| TWI529203B (en) | Polysiloxane core-shell microspheres and preparation method thereof | |
| CN109096823A (en) | The preparation method of quantum dot film and its application in a liquid crystal display | |
| JPH07138530A (en) | Production of hard coat | |
| KR100563239B1 (en) | Transparent sheet excellent in diffuse reflection effect and scratch resistance and manufacturing method | |
| KR100758280B1 (en) | Additive for optical resins, and optical resin composition |