1281889 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種直壓式射出成型光學成型品之製造方法， 尤指可提高生產速度及品質的製法。 【先前技術】 隨著電子科技的快速成長，愈來愈多的電子產品被推出，其 中’尤以行動電話及電腦，更是為人們在讀及生活上帶來方便， 而該等電子產品皆係_液晶顯示n，來提供:雜為—晝面之顯 示，該液晶顯示器，除了液晶顯示基板外，尚有導光板、擴散片 聚光片等光學成型品，其運作上主要係令出光元件之光源射入導 光板，經導光板反射面之導光點反賴由料面糾，再經擴截 片均勻其光源及聚光片增強光輝度後，以獲得足夠且均句的光 能，再投射至液晶基板上，讓晝面顯示在液晶顯示基板，是該導 光板、擴散片、聚光片等光學成型品為液晶顯示器極為重要之部 品，·而就其中導光板之製造方法為例，大多以樹脂利用射出成型 方式來製成，制之製法請配合圖—參閱，乃係令直立式的公模 1橫向移位，使其與母模2對應端面中央的壓塊i 2和母模2的 叙穴2 1 Μ合絲離’再將高溫雜狀態的樹脂由母模2的注 料道2 2注人，使填充於賴2的敎2丨心麟樹脂冷卻之 後，令公模1橫向移位退回原位，_硬化後_脂由模穴2 1 取下’即為導光板成品，此—橫向移位之射出成型方式，故可 到製造導光板之目的，細由於導光板斜板片狀，且厚度係隨 1281889 其面積成正比，因此當由注料道2 2注入樹脂後，由於高溫的樹 月曰係一被推動自然流落於模穴2 1内之情形，在模穴2丄較大之 下，因此樹脂填充的速度自然較為缓慢，以致充滿模穴2 1所， 的時間也相對的拉長，而模具又為金屬材質所製成，其材質本身 μ度低，以致咼溫融溶狀態的樹脂在經注入道2 2注入模穴21 後，會因與模具接觸而降溫，很容易在尚未填滿模穴21就發生 先注入的樹脂率先硬化的現象，為了避免樹脂在注料中途太早冷 部硬化，而形成瑕疵品，因此除了樹脂為高溫的融溶狀態之外， 公模U母模2也必須加熱至高溫狀g，續讓樹脂能夠順利填 充至模穴2 1内每-處，但也因此—加溫，則纽料完成後，也 必須對公模1及母模2進行退溫動作，以利樹脂的冷卻，才能 行後續之退鶴作，_#欲再度成_，又錢將公模^母 次加熱，此退溫及加溫之特時間，造成射出成型所須花 費守間之加長，相對的也讓製造的成本提高。另外，由於在導光 _反射面必須置設導光點，該導光點之成型方式有許多種方 式’但較常使關财三種；其—侧 反光蝴m爛娜恤L 在射出成型時，於公m的觀 、—則係 圖樣來-併成型，在前f 拉八21上刻設 型法巾，自然崎出成型時一併成 用於例如手機等較小面積的導 、， 田疋使 大困擾，但若是為電腦或電 才纟—域型方式還沒有多 時，一其厚度甚， 1281889 冷3的賴妓長，故業者不會將公模1及母模2加溫至非常高 的/皿度’而疋取-可令高溫崎狀態的樹脂，能夠在注料完成後 报快的冷卻的溫度即可，來_樹齡卻之時間，但此即造成融 溶狀悲的雛纽料完錢，⑽開始逐漸硬化之情事，但在導 光點要求非常精細之下，刻設於公則之壓塊χ i或母模2 之U 1的圖樣，並無法完整哺印於樹脂已漸硬化後之導光 板h而必須如圃二所示，施壓推動公模丄再度微橫向移位，以 其來對已開始硬化的翻旨形成—加壓，才能_樣糊的成型為 良好之導紐，而鱗涉到高壓力之施力時_、力量之大小、 /料所而之日㈣、糾旨硬化之時間變化種麵係之配合，掌握上 =不易’故很容易造成圖案之精密度喪失，而形瑕疲品，另外， 川[力也々生產機具的體積加大，而佔據較大空間，同時所須 耗費的電力有增加，也讓製造成本增加，同時以高溫高壓來成型 導光板，目在時容易產生應力，致使成品的不良率增加，另 外，如擴散片及聚光片，同樣的也必需在擴散片及聚光片之表面 成型有可令光線產生擴散、聚光效能之眾多或眾多且連續之凹凸 51體’而轉凹凸型體，财凹凸弧狀型體、鑛齒狀型體等不同 形狀’惟’不論是何獅狀之㈣，其齡度要求亦和導光點一 樣相虽馬，以習知的方法來成型，—樣無法達到良好的效果，故 習知製造方法並非為一適當的製造方法。 【發明内容】 本發明之主要目的，乃在提供一種直壓式射出成型光學成型 1281889 j之製造方法，藉模具為上、下直向之移位，在上模升高後，由 一給料裝置以設定的速度在下獅行給料_作，並在給料裝置 退出後’上模向下壓合於下模，來出導光板，以翻提高生 產速度及品質之目的，並可藉以降低製造成本。 【實施方式】 汉所能運到的功 為使貴審查委員能更易於瞭解本發明的 效，茲配合圖式說明如下。 首先請參閱三’本發明之光學成型品的製法，係利用一上模3 一下模4及—給料裝置5來達成’上模3與下模4為上、下· 之，立式設置，而給料裝置5則為—橫向移動之配置，且並可肩 抬:速之、°料，其中，上模3底侧設有一凸出之麼塊3 1，該塵 塊3 1並與下模4上端面凹入之模穴4 i為對應之大小，同财 在壓塊31或模穴4丄刻設有欲成型導光點 光之凹凸的频，德祕繼5胸嫩=口; 的前似’勝卿崎後;;= 仃4,穴4 i的動作’在給料震置5為快速給料下，能夠 在很紐的時間就完成定量的給料動作，θ 财與㈣σ Τ侧乍所給枓之量則係隨所欲成 穴小來設〜_狀態的樹脂快速的填充於模 八41内’此日備料裝置5並以退回原位 向下移位，而使上掇^Qρ 上杈3被推動 來m 塊3 1壓合於下模杨模穴4 χ内， 來形成-加壓動作’最後，上模3被 的光學成型品成品從下模杨模 :硬化成型 1取S 成加工的步驟c 1281889 、本發明之功效在於，由於係由給料裝置5向模穴41上作一 絲的定量給料，因此給料的時間可降到最少雜度，則上、下 模3、4只縣-微加_狀態，即可防止融雜態的樹脂發生 硬化現象’ 當上、下模3、4壓合後，不必㈣上、下模3、 4進行較久請温冷卻細，純上、下模3、4獨加執至太 南溫狀態下，也可縮短加熱的時間，可有效的縮減成型的時間， 來降，製祕本’另外，由於給料的速度快，因此，在給料完成 後’洛於核穴41内的樹脂係為尚未開始硬化之狀態，則當上模 I及下模4壓合後，並不需如習用者進行再次壓擠的施壓動作才 此成型導光點，*能減少施卫的步驟，此個在樹脂絲硬化下， 的觀3 1在壓合於下模4的敎4 1後，魏樹脂所形 、之昼力’即已足夠令刻設於壓塊31或模穴41的圖樣成型出 導鱗或欲令先_散、找之頻，且並關脂縣硬化，而 :讓導光點或欲令光線擴散、聚光之型體成财較佳的精細度， 導光板、擴⑽、聚光料之辟細品成品的不良率大 巾田的降低’避免不良品居高不下，導致成本的增加，另外，也因 :須^再度的施壓動作不會讓成型機的體積擴大，能減少佔 、工間以及減少耗費的電量，也可降低製造成本。 田疋畺給料動作完成後，除了上模3向下降之外，下模 上…同乂上升’來縮減上、下模3、4壓合之時間，並可利用 光風下=3、4同步移位之壓合，而來增加對樹脂的壓力，以利 亦型品之形成，令瑕癌品可以更為減少，另外，如圖四所示， 口 一給料裝置5同時對複數組模具進行輪流之給料動作，不 1281889 但可將設備裝置費用降低，且在不須等待單—組模具樹脂冷卻之 下，自然可以提高生產的速度。 7 综上所述，本發明製法並未見於市面，且確能增進使用的功 效，而已符合發明專利新穎性及進步性之要件，爰依法提出申請， 祈請 責審查委員之詳鑑，惠賜為准予專利之審定，至感德便。 【圖式簡單說明】 圖一係習知導光板成型之示意圖 圖一係習知導光板加壓之示意圖 圖二係本發明製法之示意圖。 圖四係本發明另一實施例圖。 【主要元件符號說明】 1公模 1 1壓塊 2母模 2 1模穴 3上模 3 1壓塊 4母模 4 1模穴 5給料裝置 5 1給料 2 2注料道1281889 IX. Description of the Invention: [Technical Field] The present invention relates to a method for producing a direct-pressure injection molding optical molded article, and more particularly to a method for improving production speed and quality. [Prior Art] With the rapid growth of electronic technology, more and more electronic products have been launched, among which 'especially mobile phones and computers are more convenient for people to read and live, and these electronic products are _ Liquid crystal display n, to provide: miscellaneous - 昼 surface display, the liquid crystal display, in addition to the liquid crystal display substrate, there are optical guides such as light guide plates, diffuser concentrators, etc., the operation is mainly to make the light-emitting components The light source is incident on the light guide plate, and the light guide point of the reflective surface of the light guide plate is corrected by the material surface, and then the light source and the light collecting sheet are enhanced by the expansion sheet to obtain sufficient light energy of the uniform sentence. The liquid crystal display substrate is projected on the liquid crystal substrate, and the optical molded article such as the light guide plate, the diffusion sheet, and the condensing sheet is an extremely important component of the liquid crystal display. For example, a method of manufacturing the light guide plate is taken as an example. Most of the resin is produced by injection molding. The method of making the method is shown in the figure. The vertical male mold 1 is laterally displaced to make the clamp i 2 and the female mold at the center of the end face corresponding to the female mold 2. 2叙穴2 1 Μ合丝分' and then the resin in the high temperature mixed state is injected from the injection channel 2 2 of the master mold 2, so that the 敎2丨心麟 resin filled in Lai 2 is cooled, and the male mold 1 is laterally shifted. The position is returned to the original position. After the hardening, the grease is removed from the cavity 2 1 'that is the finished light guide plate. This is the lateral displacement of the injection molding method, so it can be used for the purpose of manufacturing the light guide plate. Shape, and the thickness is proportional to the area of 1281889, so when the resin is injected from the injection channel 22, the high temperature of the tree is caused by the natural flow in the cavity 2, in the cavity 2丄Larger, so the resin filling speed is naturally slower, so that the time of filling the cavity 2 1 is relatively elongated, and the mold is made of metal material, and the material itself has a low μ degree, so that the temperature is melted. After the resin in the state is injected into the cavity 21 through the injection path 22, the temperature is lowered by contact with the mold, and it is easy to harden the resin which is injected first without filling the cavity 21, in order to avoid the resin in the middle of the injection. Too early cold hardening, and the formation of counterfeit, so in addition to In addition to the high-temperature melt state of the grease, the male mold U master mold 2 must also be heated to a high temperature g, and the resin can be smoothly filled into each of the mold holes 2 1 , but also - heating, then the new material After the completion, the male mold 1 and the female mold 2 must also be desuperheated to facilitate the cooling of the resin, in order to carry out the subsequent retreat, _# want to re-establish _, and the money will be the male mold ^ mother heating, this The special time of temperature relief and heating causes the cost of injection molding to increase, and the cost of manufacturing is relatively high. In addition, since the light guiding point must be placed on the light guiding surface, there are many ways to form the light guiding point, but it is often used to make three kinds of money; its side reflection film is used in injection molding. , in the view of the public m, - the pattern is - and formed, in the front f pull eight 21 on the shape of the towel, naturally formed into a smaller area of the guide, such as mobile phones, It is a big problem, but if it is for a computer or electricity - the domain type is not yet long, and its thickness is very high, 1281889 cold 3 Lai Long, the industry will not warm the male model 1 and the female mold 2 to Very high / degree 'and draw' - can make the resin in the high temperature state, can report the cooling temperature after the completion of the injection, it can be _ tree age, but this will cause melted and sad The young ones finished the money, (10) began to gradually harden the situation, but under the very precise requirements of the light guiding point, the pattern of U 1 engraved on the public block χ i or the master 2 could not be completely fed to the resin. The light guide plate h has been gradually hardened and must be pressed as shown in Fig. 2 to push the male mold 丄 again to be slightly laterally displaced. For the formation of the hardening, the pressure is formed, and the formation of the paste is a good guide. When the scale is involved in the application of high pressure, the size of the force, the date of the material (4), and the purpose The time of hardening changes the combination of the seed surface system, mastering = not easy, so it is easy to cause the loss of the precision of the pattern, and the shape is fatigued. In addition, the volume of the force machine is increased, and the space is occupied. At the same time, the power required to increase is increased, and the manufacturing cost is increased. At the same time, the light guide plate is formed by high temperature and high pressure, and the stress is easily generated when the eye is made, resulting in an increase in the defective rate of the finished product. In addition, the diffusion sheet and the condensing sheet are the same. It is also necessary to form a plurality of or a plurality of continuous concave-convex 51 bodies which can diffuse light and condense the light on the surface of the diffusion sheet and the condensing sheet, and turn the concave-convex type body, the concave-convex curved shape, and the mineral-tooth type. Different shapes such as body 'only', regardless of the lion-like shape (4), the age requirement is the same as that of the light-guiding point, and it is formed by a conventional method, which can not achieve good results, so the conventional manufacturing method Not for a proper Production method. SUMMARY OF THE INVENTION The main object of the present invention is to provide a method for manufacturing a direct-press injection molding optical molding 1281889 j, which is a vertical displacement of the upper and lower molds, and a feeding device is provided after the upper mold is raised. At the set speed, the lower lion line feeds the _, and after the feeding device is withdrawn, the upper mold is pressed down to the lower mold to take out the light guide plate, so as to improve the production speed and quality, and thereby reduce the manufacturing cost. [Embodiment] The function that can be delivered by Han is to make it easier for your review board to understand the effectiveness of the present invention. First, please refer to the third method of manufacturing the optical molded article of the present invention, which uses an upper die 3 lower die 4 and a feeding device 5 to achieve 'upper die 3 and lower die 4 up and down, and set vertically, and The feeding device 5 is configured to move laterally, and can be shoulder-lifted: speed, material, wherein the bottom side of the upper mold 3 is provided with a protruding block 3 1, the dust block 3 1 and the lower mold 4 The cavity 4 i which is recessed in the upper end face is of a corresponding size, and the same is used in the pressure block 31 or the cavity 4 to engrave the frequency of the concave and convex of the light to be formed by the light guide point, and the secret is followed by 5 chest tenderness = mouth; Like 'Shengqingqishou;;= 仃4, the action of the hole 4 i' can be completed in a very new time under the feeding of the material 5, θ 财 and (4) σ Τ 乍The amount of 枓 is set according to the desired small hole. The resin in the state is quickly filled in the mold VIII 41. This day, the material preparation device 5 is displaced downwards in the original position, and the upper 掇^Qρ is loaded. 3 is pushed to m block 3 1 is pressed into the lower mold Yang mold hole 4 ,, to form a - pressurization action 'Finally, the upper mold 3 is obtained from the lower mold Yang mold: hardened molding 1 machining Step c 1281889, the effect of the present invention is that, since the feeding device 5 makes a slight dosing to the cavity 41, the feeding time can be reduced to the minimum impurity, and the upper and lower molds 3 and 4 counties-micro Adding _ state can prevent the resin from melting in the molten state. When the upper and lower molds 3 and 4 are pressed together, it is not necessary to (4) the upper and lower molds 3 and 4 are cooled for a long time, and the upper and lower molds are pure. 3, 4 alone to the temperature of the South, can also shorten the heating time, can effectively reduce the molding time, to reduce, make the secret 'in addition, because the feeding speed is fast, therefore, after the completion of the feeding' When the resin in the core hole 41 is in a state where it has not yet begun to be hardened, after the upper mold I and the lower mold 4 are pressed together, it is not necessary to press the pressure guiding point as the pressure is applied by the conventional user. * It can reduce the step of defending. After the resin wire is hardened, the view 3 1 is pressed against the 敎4 1 of the lower mold 4, and the shape of the Wei resin is enough to be placed on the pressure. The pattern of the block 31 or the cavity 41 is formed into a guide scale or is intended to be _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Point or desire to make the light diffuse, the shape of the concentrated light is better, the light guide plate, the expansion (10), the concentrating material, the fine product, the defective rate of the large towel field, 'to avoid the high quality of defective products, This leads to an increase in cost. In addition, it is necessary to reduce the volume of the molding machine by reducing the volume of the molding machine, reducing the amount of electricity consumed, and reducing the manufacturing cost. After the completion of the feeding operation of the field, in addition to the lowering of the upper die 3, the lower die...the same as the rising, to reduce the time between the upper and lower die 3, 4, and can be synchronized by the light wind = 3, 4 Pressing the position to increase the pressure on the resin, in order to facilitate the formation of the type, so that the carcinogen can be further reduced. In addition, as shown in Figure 4, the mouth-feeding device 5 simultaneously rotates the complex array of molds. The feeding action, not 1281889, can reduce the cost of equipment and equipment, and naturally can increase the speed of production without waiting for the cooling of the single-group mold resin. 7 In summary, the method of the present invention has not been found in the market, and it can indeed improve the efficacy of use, and has met the requirements for novelty and advancement of the invention patent, and has filed an application according to law, praying for the detailed review of the review committee, In order to grant the approval of the patent, it is a matter of feeling. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the molding of a conventional light guide plate. Fig. 1 is a schematic view showing the pressure of a conventional light guide plate. Fig. 2 is a schematic view showing the manufacturing method of the present invention. Figure 4 is a diagram of another embodiment of the present invention. [Main component symbol description] 1 male mold 1 1 pressure block 2 female mold 2 1 mold hole 3 upper mold 3 1 pressure block 4 female mold 4 1 mold hole 5 feeding device 5 1 feeding material 2 2 filling channel