TWI222535B - Improved diffusion layer of backlight module - Google Patents

Improved diffusion layer of backlight module Download PDF

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Publication number
TWI222535B
TWI222535B TW90118516A TW90118516A TWI222535B TW I222535 B TWI222535 B TW I222535B TW 90118516 A TW90118516 A TW 90118516A TW 90118516 A TW90118516 A TW 90118516A TW I222535 B TWI222535 B TW I222535B
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Taiwan
Prior art keywords
diffusion layer
backlight module
layer
scope
item
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TW90118516A
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Chinese (zh)
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Chih-Chiang Tseng
Wei-Shan Wang
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Chih-Chiang Tseng
Wei-Shan Wang
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Priority to TW90118516A priority Critical patent/TWI222535B/en
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Publication of TWI222535B publication Critical patent/TWI222535B/en

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  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

An improved diffusion layer of backlight module is disclosed, which comprises a transmitting substrate layer, its bottom surface has a transparent back adhesive layer for pasting onto the surface of the applied object. The top surface of the transmitting substrate has a middle diffusion layer associated, so as to uniformly diffuse the light. Its surface has several series of stripes and concave slits rolled by the working way of rolling stripe, so that its whole surface is atomized uniformly. Also, a transparent protection film is associated on the diffusion layer, so as to protect the surface of middle diffusion layer.

Description

1222535 五、發明說明(l) 〈發明領域〉 本發明係有關於一種背光模組之擴散層改良,尤指一 種應用於LCD顯示面板、掃瞄器,且具有輥紋均勻擴散光 線的背光模組層。 〈發明背景及先前技藝〉 知:,背光模組廣泛使用於液晶(L C D)顯示器、掃瞒哭 中,作為光線擴散之用,使液晶顯示器及掃瞄器可正確發 ίίϊ顯示功能及掃猫功能,然而,在習知背二模組之i 月欠層中,由於需在其表面形成光線擴射效果,而在i #而 以網印塗佈化學物質或喷霧砂兩種方式來形成顆八^ 中,網印塗佈化學物質方式是以二氧化鈦(Ti〇 、或,一= 矽(S1 02 )二種化學物質藉由網版印刷於复 /一虱匕 加工過程複雜、成本高、高污染,並且點是 附於如透明之塑膠材料之上,而極易於赞转貝不易著 有剝落之問題,導致其產品之不良率遽文到刮傷或 塗佈方式之另一問題點,則是化學物=,,此種網版 易分佈不均,造成背光模組整體光線之厚度及其顆粒 能不佳之問題。 透射不均或擴散性 而另一種使用噴霧砂之方式,即 之玻璃珠喷著在背光模組之擴散層表=错由右干如霧砂狀 顆粒來產生光線擴射效果,但其二點β,以藉由各玻璃珠 產生污染,且玻璃顆粒也不易均勻=在噴砂之過释中易 同樣地,會造成光線擴散不均而使其^於背光模組表面, 除此之外,在相關的先前專利果不彰之問題。1222535 V. Description of the invention (l) <Invention field> The present invention relates to an improvement of a diffusion layer of a backlight module, especially a backlight module applied to an LCD display panel, a scanner, and a roller pattern to evenly diffuse light. Floor. <Background of the Invention and Previous Techniques> Knowing: Backlight modules are widely used in liquid crystal (LCD) displays and sweeping, as light diffusion, so that liquid crystal displays and scanners can correctly display the display function and cat scan function However, in the i-layer of the conventional back module, due to the need to form a light spreading effect on its surface, the i # is coated with chemicals or spray sand in two ways to form particles. In ^^, the screen printing method of coating chemical substances is based on titanium dioxide (Ti0, or, a = silicon (S1 02)) two kinds of chemical substances through screen printing. The processing process is complex, high cost, and high. Pollution, and the point is attached to a transparent plastic material, which is very easy to praise the problem of peeling, which causes the product's defective rate to be scratched or another problem of the coating method, It is chemical =. This kind of screen is easy to be unevenly distributed, which causes the problem of the overall light thickness of the backlight module and its poor particle performance. Uneven transmission or diffusivity and another method using spray sand, namely glass Beads sprayed on the backlight module Diffusion layer surface = wrongly, the right side is dried like misty sand particles to produce the light diffusion effect, but the second point β is to cause pollution by each glass bead, and the glass particles are not easy to be uniform. The ground may cause uneven light diffusion and cause it to lie on the surface of the backlight module. In addition, the related prior patents are not effective.

— — 、方面,如中華民國 1222535 五、發明說明(2) 專利公報中公告號數第 案,則顯示了 一種典型 板,相同地,也存在有 染、塗佈不均、顆粒分 〈發明目的及概述&gt; 緣此,本發明之主 之擴散層改良,具有以 縫,使光線擴散具有均 本發明之再一目的 層改良,其表面不會產 品之良率。 本發明之又一目的, 層改良,其整體加工簡 為達上述之目的, 包含一透射基層,可結 器上,其上方結合有一 形有若輥紋及凹縫,使 有一弧形部,以增加光 間擴散層之上方則以一 擴散層,為一具均勻擴 本發明之詳細構造 明使之明確,同時,並 改良形態得以更加清楚 442675號「背光板模組」 習知化學物質塗佈方式構;的 如上所述加工複雜、成本高、=^ 佈不均及透射效果不佳的缺失^ Θ 要目的,即是在提供一種背光桓会 輥壓成形及均勾分佈之輥紋及凹、、且 勻一致之效果。 ,即是在提供一種背光模組之擴散 生刮傷或物質剝落,可大幅提昇產讀 即是在提供一種背光模組之擴散 便、成本低、不會造成環境污染。 本發明的背光模組之擴散層改良, 合於所應用之LCD顯示面板或掃目苗 中間擴散層,其表面以牵昆壓方式成 其表面霧化,並在凹縫底部至少設 線擴射並使光線均勻擴散,且在中 透明保護膜加以覆蓋,·以保護中間| 散光線之背光板。 及實際操作,將藉由以下詳細之說 佐以相關圖式,俾使其技術内容及 明瞭,其中:In terms of, for example, the Republic of China 1222535 V. Description of the invention (2) The number of cases published in the patent gazette shows a typical board. Similarly, there are dyeing, uneven coating, and particle separation. And summary &gt; For this reason, the main diffusion layer of the present invention is improved, with slits, so that the light diffusion has the improvement of another object of the present invention, and the surface will not have the product yield. Another object of the present invention is to improve the layer. The overall processing is simply to achieve the above-mentioned purpose. It includes a transmissive base layer, which can be connected to the device, and has an arc-shaped portion combined with a roller shape and a recess on the top. Above the inter-light diffusion layer is added a diffusion layer, which is a uniform expansion of the detailed structure of the present invention to make it clear, and at the same time, improve the shape to make it more clear. No. 442675 "Backlight plate module" Conventional chemical substance coating The structure is as described above; the processing is complicated, the cost is high, = ^ is uneven, and the transmission effect is not good ^ Θ The main purpose is to provide a backlight with roll forming and uniformly distributed roll patterns and recesses. , And uniform effect. That is, the diffusion of a backlight module is scratched or the material is peeled off, which can greatly improve the production readability. That is, the diffusion of a backlight module is provided, the cost is low, and no environmental pollution is caused. The improvement of the diffusion layer of the backlight module of the present invention is suitable for the intermediate diffusion layer of the applied LCD display panel or the eye-catching seedling. And make the light spread evenly, and cover it with a transparent protective film, to protect the middle | diffused backlight board. And the actual operation will be described in detail with the relevant drawings to make its technical content and clear, of which:

1222535 五、發明說明(3) (一)圖式部份: 第一圖係本發明第一例之 第二圖為第—圖之立體分解圖;體圖, 第三圖為第-圖之剖視圖; 第四圖為—Αμ ^ _ 勹局部剖視放大圖,顯示巾η &amp; ,之弧形部產生光線擴散之狀:中間擴政層上之輥紋及 第五圖係本發明之第二實施例圖厂 (二)圖號部份: , :ί光H 10透射基層1222535 V. Description of the invention (3) (1) Schematic diagram: The first diagram is a first exploded perspective view of the first example of the present invention; the second diagram is a exploded perspective view of the first diagram; the body diagram, the third diagram is a sectional view of the first diagram The fourth picture is a partial enlarged view of Αμ ^ 勹, showing the shape of light diffusion in the curved portion of the towel η &amp;: the roll pattern on the middle expansion layer and the fifth picture are the second of the present invention Example drawing plant (two) drawing number part:,: LIGHT H 10 transmission base

«I 透明背膠層 30離型紙 中間擴散層 50糙紋 60凹縫 61弧形部 70 透明保護膜 〈較佳實施例之敘述&gt; 首先請參閱第一圖〜第三圖所示 組,為ri 丁久闰斗、Α 个%明之背光板模 在以下各圖式中,以100編號來標示之。/尤=棋 先板100,包含一透射基層10,其型態不限2中,遠月 每透先效果者,、在本發明中是以白色ΡΕΤ板為其說明之 =&amp;例,且於該透射基層丨0底部則設有一透明背膠層20, ϋ供以黏貼於所應用之產品,如各種液晶(LCD)顯示面 板、掃猫器上,於該透明背膠層20外則結合有一離型紙 3 0 ’以使透明背膠層2 0可於平時不用時受離型紙3 〇保護, 於使用時,僅需藉由簡單的離型紙3〇撕離而供使用。«I Transparent Adhesive Layer 30 Release Paper Intermediate Diffusion Layer 50 Roughness 60 Concave Seam 61 Curved Section 70 Transparent Protective Film <Description of the Preferred Embodiment> First, please refer to the group shown in the first to third figures, for ri Ding Jiu's bucket, A backlighting molds are marked with 100 numbers in the following drawings. / You = Chess board 100, including a transmissive base layer 10, the type of which is not limited to 2. In the present invention, a white PET board is used as an example to illustrate the effect of each penetrative effect. A transparent adhesive layer 20 is provided at the bottom of the transmissive base layer 0, and is provided for adhering to the applied products, such as various liquid crystal (LCD) display panels and cat sweepers, and bonded outside the transparent adhesive layer 20 There is a release paper 3 0 ′ so that the transparent adhesive layer 20 can be protected by the release paper 30 when not in use. When in use, it is only necessary to tear off the release paper 30 for use.

第6頁 1222535 五、發明說明(4) 清再配合第四圖所示,上述的透射基層1 〇在其上方則 結合有一中間擴散層4〇,其型態不限,在本發明中是以透 光或透明的PC片於其表面以輥輪輥壓方式,成形有若干系 列的輥紋50及凹縫60(如第三圖及第四圖所示),其型態不 限,以親輪之模具紋路為其形狀,且該細密的輥紋5〇及凹 縫60則使該中間擴散層4〇表面霧化,且在凹縫6〇的底部, ,至少設有一弧形部61,其弧度不限而供光源透射,-而使 、&gt;線均勻透射及擴散之效果(如第四圖箭頭方向所示)。 =述的中間擴散層4〇之頂面,結合有一透明保護膜 請再配合第五圖所+ ^ JL .. 〇D u 該輥紋50及凹縫60的形狀;丁复由一貫靶例之差異,是 部狀 e ^ ^ ^ ^ ^ 不同,其中,該凹縫6〇呈圓弧形 力夂;=也相對地呈圓弧形狀,藉以增 術内之背光㈣的偏 業利用價值歸納整理如=,:§可將其優點、實用功效及產 &lt;—&gt;光線透射、擴散均勻.Λ 均句,可使背光板1〇〇整體具有曰均m〇及凹縫6〇之分佈 &lt; ~ &gt;其中輥紋5 〇可經由 :的透射及擴散效果。 產生不同的霧化程度,相較===需而調節不同的密度及 〈三〉可加光線擴散之效要益:式部無法調節的缺失。 文果’猎由凹縫60底部的弧形部61, ^2535 五、發明言兒明⑸ 〈ς,透鏡般的加強光學擴散效果。 表面不會有剝落或刮傷指 :其係藉由輥壓方式產生均勻,提昇產品品質, 表面於製作過程中不會有剝落、=5〇 =縫6〇,而使其 做=影響的外來因素,以減低產j 均或其他製 五〉加工簡便、成本低且無污染。 羊。 在以上第一圖〜第五圖中张_ 層改良,JL中所猖千&amp; ;ta閼不本&amp;明背光模組之擴散 太私中 “兄明及圖式,係僅為便於闡明 =發日;的技術内容及技術手段,所揭示較佳實 =不而限制其範疇’並且’舉凡針對本發明之等效 f代修飾’皆不脫本發明之發明精神及範嘴,纟範圍將由 以下的申請專利範圍來界定之。Page 6 1222535 V. Description of the invention (4) As shown in the fourth figure, the above-mentioned transmissive base layer 10 is combined with an intermediate diffusion layer 40 above it, and its type is not limited. In the present invention, The light-transmissive or transparent PC sheet is rolled on its surface by a series of roller patterns 50 and recesses 60 (as shown in the third and fourth figures), and its shape is not limited. The mold pattern of the wheel is in the shape, and the fine roller pattern 50 and the recess 60 atomize the surface of the intermediate diffusion layer 40, and at the bottom of the recess 60, at least one curved portion 61 is provided. Its radian is not limited for light source transmission, and the effect of making &gt; line uniform transmission and diffusion (as shown in the arrow direction of the fourth figure). = The top surface of the intermediate diffusion layer 40 described above, combined with a transparent protective film, please cooperate with the fifth figure + ^ JL .. 〇D u The shape of the roll pattern 50 and the recess 60; The difference is that the shape e ^ ^ ^ ^ ^ is different. Among them, the notch 6 has an arc-shaped force 夂; = also relatively arc-shaped, so as to increase the value of the partial use of the backlight 内 within the operation. If = ,: § can distribute its advantages, practical effects, and production &lt;-&gt; uniform light transmission and diffusion. Λ uniform sentence can make the backlight plate 100 as a whole have a distribution of average m0 and recesses 60 &lt; ~ &gt; Where the roller pattern 50 can pass through: transmission and diffusion effects. Generates different degrees of fogging, compared with === the need to adjust different densities, and <3> can add the benefits of light diffusion: the lack of adjustment of the formula part. Wen Guo ’hunting by the arc-shaped part 61 at the bottom of the recess 60, ^ 2535 5. The invention is brighter, which enhances the optical diffusion effect like a lens. There will be no peeling or scratching on the surface. It means that it is uniformly produced by rolling to improve the quality of the product. There will be no peeling on the surface during the production process. Factors in order to reduce production, production or other systems. 5) Simple processing, low cost and no pollution. sheep. In the first picture to the fifth picture above, the sheet layer is improved, and the 背光 & J 猖 本 本 本 本 本 本 本 本 The diffusion of the backlight module is too private. "Brothers and diagrams are only for ease of illustration. = The date of publication; the technical content and technical means of the disclosure are better = not limiting its scope 'and' for all equivalent f-generation modifications to the invention 'without departing from the spirit and scope of the invention, It will be defined by the following patent application scope.

1222535 圖式簡單說明 第一圖係本發明第一實施例之立體圖; 第二圖為第一圖之立體分解圖; 第三圖為第一圖之剖視圖; 第四圖為一局部剖視放大圖,顯示中間擴散層上之輥紋及 凹縫之弧形部產生光線擴散之狀態; 第五圖係本發明之第二實施例圖。1222535 Brief description of the drawings The first diagram is a perspective view of the first embodiment of the present invention; the second diagram is an exploded perspective view of the first diagram; the third diagram is a sectional view of the first diagram; the fourth diagram is an enlarged partial sectional view , Showing the state of light diffusion caused by the rolls on the intermediate diffusion layer and the curved portion of the recess; the fifth figure is a diagram of the second embodiment of the present invention.

第9頁Page 9

Claims (1)

1222535 六、申請專利範圍 1 · 一種背光模組之擴散層改良,係包含有: 一透射基層,其底面結合於應用物體表面,提供光線 透射; 一中間擴散層,結合於透射基層上,並於表面以輥壓 方式成形有若干系列之輥紋及凹缝,以藉由輥紋及凹縫提 供光線透射及擴散之用,以及; 一透明保護膜,結合於中間擴散層之上,以用來保護 中間擴散層。 2 ·如申請專利範圍第1項所述之背光模組之擴散層改良, 其中,該透射基層為白色PET板所構成。 3 ·如申請專利範圍第2項所述之背光模組之擴散層改良, 其中,透射基層藉由白色濃度控制該層之光學濃度,以調 製所需色層濃度。 4 ·如申請專利範圍第1項所述之背光模組之擴散層改良, 其中,該透射基層之底部結合有一透明背膠層,以供黏合 於應用物體表面。 5 ·如申請專利範圍第4項所述之背光模組之擴散層改良, 其中,該透明背膠層之表面,則結合有一離型紙。 6 ·如申請專利範圍第1項所述之背光模組之擴散層改良, 其中,該中間擴散層為透明(PC)片所構成。 7 ·如申請專利範圍第1項所述之背光模組之擴散層:改良, 其中,該中間擴散層上之凹縫底部至少設有一弧形部。 8 ·如申請專利範圍第1項或第7項所述之背光模組之擴散 層改良,其中,該中間擴散層之凹縫為圓弧形部形。1222535 VI. Scope of patent application1. An improved diffusion layer of a backlight module includes: a transmissive base layer whose bottom surface is bonded to the surface of the application object to provide light transmission; an intermediate diffusion layer is bonded to the transmissive base layer, and The surface is roll-formed with a series of roll patterns and recesses to provide light transmission and diffusion through the roll patterns and recesses, and a transparent protective film combined with the intermediate diffusion layer for Protect the middle diffusion layer. 2. The improvement of the diffusion layer of the backlight module according to item 1 of the scope of patent application, wherein the transmissive base layer is made of a white PET plate. 3. The improvement of the diffusion layer of the backlight module as described in item 2 of the scope of the patent application, wherein the transmission base layer controls the optical density of the layer by white density to adjust the required color layer density. 4. The diffusion layer improvement of the backlight module according to item 1 of the scope of the patent application, wherein a transparent adhesive layer is bonded to the bottom of the transmissive base layer for bonding to the surface of the application object. 5. The improvement of the diffusion layer of the backlight module according to item 4 of the scope of the patent application, wherein the surface of the transparent adhesive layer is combined with a release paper. 6 · The diffusion layer improvement of the backlight module according to item 1 of the scope of patent application, wherein the intermediate diffusion layer is made of a transparent (PC) sheet. 7 · The diffusion layer of the backlight module according to item 1 of the scope of patent application: improvement, wherein at least one arc portion is provided at the bottom of the recess on the intermediate diffusion layer. 8 · The diffusion layer improvement of the backlight module according to item 1 or item 7 of the scope of patent application, wherein the recess of the intermediate diffusion layer has a circular arc shape. 第10頁 1222535 六、申請專利範圍 9 ·如申請專利範圍第1項所述之背光模組之擴散層改良, 其中,擴散層可單面或雙面共同藉由輥壓方式成形輥紋及 凹缝實施者。 1 0 ·如申請專利範圍第9項所述之背光模組之擴散層改 良,其中,擴散層所輥壓成形輥紋及凹縫之密度間隙可視 實施者所需而形成所需的輥紋密度。Page 10 1222535 VI. Application for Patent Scope 9 • The diffusion layer of the backlight module is improved as described in item 1 of the scope of patent application, where the diffusion layer can be used to form roll patterns and recesses on one or both sides by roll pressing. Sew implementer. 10 · The improvement of the diffusion layer of the backlight module according to item 9 of the scope of the patent application, wherein the density gap of the roll pattern and the recesses formed by the diffusion layer can be formed according to the needs of the implementer to form the required roll pattern density. .
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI382204B (en) * 2007-12-31 2013-01-11 Ind Tech Res Inst Optical diffusion plate and fabricating method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI382204B (en) * 2007-12-31 2013-01-11 Ind Tech Res Inst Optical diffusion plate and fabricating method thereof

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