M420727 五、新型說明： 【新型所屬之技術領域】 本創作係有關一種增光片結構改良，特別是指一種可提 高折射率之增光片結構改良。 【先前技術】 近年來，液晶顯示器（簡稱「LCD」）挾著輕、薄、短、小、 熱量與耗電低、以及幾乎無輻射傷害的優點，已逐步取代傳 •統陰極射線管（CRT)顯示器。 一般而言，液晶顯示器之主要結構包含面板與背光模組 兩大部分，面板部分包括例如氧化銦錫（ITO)導電玻璃、液 晶、配向膜、彩色濾光片、偏光片、驅動積體電路等，背光 模組部分則包含例如燈管、導光板及各種光學膜等。LCD之 整體光學表現係受到背光模組部分所有元件的交互影響，其 中，光學膜更在螢幕亮度、均勻度、對比與視角上扮演了重 要的角色。 • 為使LCD能夠呈現更好的觀賞角度與色彩，目前業界已 有諸多嘗試，例如，已知可藉由增加燈管數目來提高LCD面 板之亮度，然而，此不但容易導致過多熱量蓄積於液晶顯示 器中，而影響到其他元件的壽命與品質，同時會導致電力消 耗過大，而無法滿足許多資訊類用品必須仰賴電池以離線使 用之要求。 目前而言，在背光模組中利用各式各樣之光學膜，提供 一種能提高LCD面板亮度以使光源做最有效率之發揮、卻不 需更動任何元件設計或消耗額外能源的做法，已成為最經濟 3 M420727 與簡便的解決方案。 增亮膜通常簡稱 BEF(Brightness Enhancement Film)或 才曰聚光膜，其可係藉由例如在厚度僅125 " m的聚酯光學薄膜 上，利用尚能量紫外線（UV)將特殊壓克力樹脂硬化成微細稜 鏡結構而製得。增亮膜主要的功能在藉由折射與内部全反射 將由導光板（light guide)發出至四面八方之散亂的光線收 集，並集中至約±35度的正視角（on—axis)方向，以提高[CD 的焭度；惟，該單層壓克力樹脂之折射率仍不高。 【新型内容】 有鑑於此，本創作即在提供一種可提高折射率之增光片 結構改良，為其主要目的者。 為達上揭目的，本創作之增光片至少包含有：一基材、 增光層以及一無機層，該無機層係設於該基材與該增光層 間’藉由該無機層可使該基材與該增光層穩固接合而不致分 離，且令該增光片之折射率可大於I 6 ^ 【實施方式】 圖式及實施例之詳細說明而 本創作之特點，可參閱本案 獲得清楚地瞭解。 如第目本創作之增光片結構立體圖，以及第二圖本創 ^之增光片結構示意圖所示，本創作之增光片1〇至少包含 ;—基材ιι(可以為PET材質）、一增光層12以及 該基材U設有相對之第—、第二表面⑴、112，該 曰先層12係設於該基材之第—表面iu，該增光層12係設 M420727 有複數棱鏡結構121，各棱鏡結構121之間距可以為50μιη(或 者可以為25μιη)，該無機層13則設於該基材11與該增光層 12間，該無機層13可以為氧化锆或二氧化鈦材質，該無機 層13之厚度可以為0. 1〜15μιη。 其中，該無機層13可使該基材11與該增光層12穩固接 合而不致分離，且可令光線經由該無機層13以及該增光層 12射出後，其折射率可大於1. 6。 再者，該基材之第二表面112設有一擴散層14，如第三 • 圖所示，該擴散層14係設有複數微結構141(可以為網點）， 以增加該增光片10之擴散效果。 綜上所述，本創作提供一較佳可行之增光片結構改良， 爰依法提呈新型專利之申請；本創作之技術内容及技術特點 巳揭示如上，然而熟悉本項技術之人士仍可能基於本創作之 揭示而作各種不背離本案創作精神之替換及修飾。因此，本 創作之保護範圍應不限於實施例所揭示者，而應包括各種不 背離本創作之替換及修飾，並為以下之申請專利範圍所涵蓋。 【圖式簡單說明】 第一圖係為本創作中增光片之結構立體圖。 第二圖係為本創作中增光片之結構示意圖。 第三圖係為本創作中增光片之另一結構示意圖。 【主要元件符號說明】 增光片10 基材11 5 M420727 第一表面111 第二表面112 增光層12 棱鏡結構121 無機層13 擴散層14 微結構141M420727 V. New description: [New technical field] This creation is about the improvement of the structure of a brightness enhancement film, especially the improvement of the structure of the brightness enhancement film which can raise the refractive index. [Prior Art] In recent years, liquid crystal displays ("LCDs") have gradually replaced the cathode ray tube (CRT) with the advantages of lightness, thinness, shortness, smallness, low heat and power consumption, and almost no radiation damage. )monitor. In general, the main structure of a liquid crystal display includes two parts of a panel and a backlight module, and the panel portion includes, for example, indium tin oxide (ITO) conductive glass, a liquid crystal, an alignment film, a color filter, a polarizer, a driver integrated circuit, and the like. The backlight module portion includes, for example, a lamp tube, a light guide plate, various optical films, and the like. The overall optical performance of the LCD is affected by the interaction of all components of the backlight module, where the optical film plays an important role in screen brightness, uniformity, contrast and viewing angle. • In order to enable LCDs to display better viewing angles and colors, there have been many attempts in the industry. For example, it is known that the brightness of LCD panels can be increased by increasing the number of lamps. However, this is not only easy to cause excessive heat accumulation in the liquid crystal. In the display, it affects the life and quality of other components, and at the same time, it leads to excessive power consumption, and it cannot meet the requirements that many information products must rely on the battery for offline use. At present, the use of a variety of optical films in the backlight module provides a way to increase the brightness of the LCD panel so that the light source can be used most efficiently without changing any component design or consuming additional energy. Become the most economical 3 M420727 with a simple solution. A brightness enhancement film is generally referred to as a BEF (Brightness Enhancement Film) or a concentrating film, which can be made by, for example, a polyester optical film having a thickness of only 125 " m, using a special energy ultraviolet (UV) to apply a special acryl. The resin is obtained by hardening into a fine crucible structure. The main function of the brightness enhancement film is to collect the scattered light emitted by the light guide from all directions by refraction and internal total reflection, and concentrate it to the on-axis direction of about ±35 degrees to improve [The twist of the CD; however, the refractive index of the single-krafted resin is still not high. [New content] In view of this, this creation is to provide an improvement in the structure of the brightness-increasing sheet, which is the main purpose. In order to achieve the above, the present invention comprises at least a substrate, a brightness enhancement layer and an inorganic layer disposed between the substrate and the brightness enhancement layer. The substrate can be made by the inorganic layer. The light-increasing layer is firmly bonded without being separated, and the refractive index of the light-increasing sheet can be greater than I 6 ^. [Embodiment] The features of the present invention and the detailed description of the embodiments can be clearly understood from the present case. For example, the stereoscopic structure of the glossing structure created by the first item and the structure diagram of the brightnessing sheet of the second drawing of the present invention, the brightness enhancement sheet of the creation is at least included; the substrate ιι (may be PET material), a brightness enhancement layer 12 and the substrate U is provided with opposite first and second surfaces (1) and 112. The first layer 12 is disposed on the first surface iu of the substrate, and the brightness enhancement layer 12 is provided with a plurality of prism structures 121. The distance between the prism structures 121 may be 50 μm (or may be 25 μm), and the inorganic layer 13 is disposed between the substrate 11 and the brightness enhancement layer 12, and the inorganic layer 13 may be made of zirconia or titania. The thickness may be 0. 1~15μιη. I. The refractive index of the substrate may be greater than 1.6 when the light is transmitted through the inorganic layer 13 and the light-increasing layer 12. Furthermore, the second surface 112 of the substrate is provided with a diffusion layer 14. As shown in the third figure, the diffusion layer 14 is provided with a plurality of microstructures 141 (which may be dots) to increase the diffusion of the brightness enhancement sheet 10. effect. In summary, the present invention provides a better and feasible enhancement of the structure of the light-increasing film, and the application for the new patent is submitted according to law; the technical content and technical features of the present invention are disclosed above, but those familiar with the technology may still be based on the present disclosure. The creation of the creation and the various changes and modifications that do not depart from the creative spirit of the case. Therefore, the scope of protection of the present invention is not limited to the embodiments disclosed, but includes various alternatives and modifications that do not depart from the present invention and are covered by the following claims. [Simple description of the diagram] The first picture is a three-dimensional structure of the enhancement film in the creation. The second picture is a schematic diagram of the structure of the enhancement film in the creation. The third picture is a schematic diagram of another structure of the brightness enhancement film in the creation. [Main component symbol description] Light-increasing sheet 10 Substrate 11 5 M420727 First surface 111 Second surface 112 Light-increasing layer 12 Prism structure 121 Inorganic layer 13 Diffusion layer 14 Microstructure 141