201201164 六、發明說明： 【發明所屬之技術領域】 本發明係有關一種影像光線偏折光學膜’尤其是將影 像光線偏折至特定方位。 【先前技術】 目前商用的大尺寸液晶顯示器，最常見的是扭轉向列 型（Twisted Nematic ’ TN)顯示器、橫向電場切換(In_piane 鲁 Switching，IPS)顯示器、多區域垂直配向（Multi-Domain201201164 VI. Description of the Invention: [Technical Field] The present invention relates to an image light deflecting optical film', in particular, deflecting image light to a specific orientation. [Prior Art] Commercially available large-size liquid crystal displays, the most common ones are Twisted Nematic 'TN' displays, In-piane Switching (IPS) displays, and multi-area vertical alignment (Multi-Domain)
Vertical Alignment，MVA)顯示器。 傳統的ΤΝ顯示器是利用上下電極在液晶層的上下二 面施加電壓以產生垂直電場，使液晶分子扭轉以改變入射 光的偏極態，再配合光軸相互垂直的上下偏光片以及彩色 濾光片以產生所需的彩色影像，而ΤΝ顯示器的最大問題 在於視角太窄’尤其是在下視角，大約3G度左右就會有灰 階反轉現象。另外，TN的顯示器最大對比約為1〇〇〇:卜 • —般戶外資訊顯示器或電視必須使各方位的使用者可 以正確讀到顯示器上的f訊’傳統的TN顯示器具有較窄 =而無法滿足上述需求，因此戶外資訊顯示器或電視 而要廣視角技術’比如IPS顯示器或MVA顯示器。 習用技術中，由日商日立(Hitachi)所開發的IPS技術的 主要特徵是，將TN顯示器的上下電極安置在液晶層的同 一侧邊上，以產生橫向的電場，而非垂直電場，使液晶分 子在水平方向扭轉以改變入射光的偏極態，因技術的 液晶排列方式會使觀看者在不同角度下觀看到幾乎相同的 201201164 液晶分子橫切面，亦即從任何角度觀看相同晝面，亮度幾 乎相同’所以能改善視角問題。一般而言，ips顯示器的 視角可達170到178度’最大對比約最大對比約1〇〇^:卜 習用技術中，由日商富士通(Fujitsu)所開發的VA技術 或MVA技術的主要特徵是，在液晶層的不同區域之内侧邊 安置屋脊狀(Ridge)的突起物(Protrusion)，使得同—水平平 面的液晶分子具有不同的垂直傾斜角，而在觀看角产下， 不同區域中液晶分子的光學效應會互相補償，使得觀看者 在不同角度下可觀看到相同的平均液晶分子橫切面，亦即 增加視角範圍。MVA顯示器的視角可達no度，最大對比 約 5000 : 1 。 然而，IPS技術、VA技術或MVA技術是針對液晶顯 示器中的陣列層（Cell Array)進行改良，因此製造成本高於 TN顯示器，而且IPS顯示器或MVA顯示器的透光率只有 TN的6〜8成。另外，IPS與VA之反應速度，較TN為慢。 以IPS技術為例，液晶分子的對準方向需平行於包含 液晶層的玻璃基版，因此得電極只能置於兩片玻璃板中的 其中一邊，而這些電極必須製作成像梳子狀，排列在液晶 層的下層表面，導致透光率減少及對比降低，而必須增加 背光源的免度，造成背光源的燈管成本上升，增加功耗， 並產生額外噪音及散熱的問題，更可能引發安全的疑慮。 習用技術中，另一解決TN顯示器之視角問題的方案 為使用光學補償膜或廣視角膜(Wide Viewing Film)，如曰商 富士軟片公司（Fujifilm)所開發的廣視角補償膜(Fuji Wide View Film)，藉貼附在TN顯示器上，使廣視角補償膜對入 [s] 射光產生負的相位延遲(phase retardation)以補償傾斜觀看 4 201201164 顯示所看到正的純_，“補射同肖 的不同液晶分子橫切面之光學效應，以增加=觀看到 常，廣視角補償膜不同於—般高分子膜，而^圍。通 合物所組成，可將左右視角增加到刚度/用盤狀化 加到120度’但是沒有解決灰階反轉的問題。下現角増 從另-應用©來看’對於大型戶外廣告 安置在大樓上或高處’觀看者主要是位於下=尤其是 要朝下側顯示廣告内容’所以大型戶外廣因此只需 特定視角範圍的顯示功能，而不需要廣視心反而需要 型戶外廣告看板需要更高的亮度，因此背二尤其大 散熱問題便顯得更加重要。 w 且中燈管的 線偏=置需 同視角之顯示功能而形成廣視角的顯示功能=配合不 習知技術的缺點。 乂解決上述 【發明内容】 本發明之-方面是在提供一種影像光線 以偏折由外部射入之影像光線而產生可偏射^置，用 出射光並投射至外部，來提供特定視㈣顯示^方向的 配合不同視角之顯示功能而形成廣視角的顯示功：。並可 根據本發明之-實施例，此影像光線偏 柵膜及透光片，其中光柵膜堆疊在該透光片上，光；；^ 由透光性材料構成且具有表面微結構，表面微結構係利用 全像片製程而製成’並可包括複數個突起狀、突脊狀、凹 201201164 陷狀或凹槽狀’能產生擴大視角或改變出光角产興 應’藉以增加觀看者的觀看角度並提升影像訊^的^覺效 應，或避免出射光投射到沒有顯示效益的其他=光方:效 以降低發光源的亮度，節省電力的功耗，達到節能的向’ 本發明的影像光線偏折裝置可貼附在—般的顯§ ^器 上，比如利用透光性黏接劑而黏在液晶顯示器的偏光I °， 以改變視角範圍或影像出光角度的視覺效應，因此可使用 透光率較高的TN液晶層，以解決習用技術中 率之VA或IPS液晶層所造成的問題，且本發明的影=光 線偏折裝置可解決灰階反轉的問題，改善習用光學補償膜 所不能解決的視角問題’並將反應速度較快之液晶模式應 用於廣視角顯示器。 ^ w 【實施方式】 以下配合圖式及元件符號對本發明之實施方式做更詳 細的說明’俾使熟習該項技藝者在研讀本說明書後能據以 實施。 本發明的技術特徵係利用全像片的製作方法以形成光 栅膜’藉安置光柵膜於透光片或顯示器上以擴大視角或偏 折至特定顯示角度’進而展現特殊的視覺效應，尤其是可 直接應用於高透光率的TN顯示器。 具顯示出立體影像或全像(Hologram)的全像片主要是 利用全像技術（Holography)在不同角度記錄兩道同調性 (Coherent)很高的光（比如雷射光經分光鏡所產生）所形成的 干涉條紋，其中一道光照射目標物後經反射而投射至感光 201201164 片’而另一道光經反射鏡反射後也投射到同一感光片，當 作參考光’用來與目標物的反射光形成干涉。因此，當作 光學全像片的感光片不僅可記錄光強度，還同時具有相位 資訊’亦即以平面材料的感光片記錄包含三度空間的影像 資訊。理論上，可藉由任一局部的材料所記錄的資訊來重 建原始物件的本體，所以只要有適當的重建光’便可看到 與實物完全一樣的立體全像。目前，光學全像片已被應用 至防偽標籤、雷射圖片、DVD用的光學讀取頭、全像抬頭 顯示器。 σ 參閱第一圖，本發明第一實施例影像光線偏折裝置的 不意圖。如第—圖所示，第一實施例的影像光線偏折裝置 包括光柵膜10及透光片20，用以偏折由外部射入之影像 光線L1 ’其中光柵膜10堆疊在透光片2〇上，光柵獏1〇 係由透光性材料構成且具有表面微結構3〇。 .影像光線L1自外部射入該透光片後產生透射光乙2， 透射光L2經光柵膜1G後產生出射光u並投射至外部。 影像光線L1可包括偏極化影像光線及非偏極化影像光線 的其中之―’而偏極化影像光線可由液晶顯示ϋ產生，邦 偏極化影像光線可由電_示器、有機發光二極體顯 及電子紙顯示器的其中之一產生。 以具有偏光裝置顯示裝置，為例，透光片29可包括 光片及透光保護片的至少其中之一，其中偏光片係用以在 影像光線L1為偏極化影像光料，對偏極化的影像光 L1進行偏極化以控制韻光u的亮度，錢光保護 提供保護承載功能。 以不具有偏光襞置顯示裝置為例，透光片29可設置於 201201164 顯示裝置之透明保護外殼（即前述之透光保護片）上，以使 其支撐或保護光栅膜。值得注意的是，若光柵膜本身即具 有強固之結構，其亦可設置於透明保護外殼外，而不需^ 受透明保護外殼的保護。 光柵膜10的表面微結構30包括複數個尖角突起狀、 複數個圓弧突起狀、複數個尖角突脊長條狀、複數個圓弧 突脊長條狀、複數個尖角凹陷狀、複數個圓弧凹陷狀、複 數個尖角凹槽長條狀及複數個圓弧凹槽長條狀的至少其中 =一，藉以產生偏折作用。要注意的是，第一圖係以^角 突起狀為示範性實例，藉以說明本發明的特徵而已，並非 用以限定本發明的範圍。如第一圖中，波前p 1為經透光片 肋所產生的近距離波前，而波前R1為經光柵膜1〇的表面 微結構30所產生的近距離波前，波前p2為經透光片如所 產生的遠距離波前，而波前R2為經光柵膜1〇的表面微結 構30所產生的遠距離波前。比較波前p2與波前可知， 表面微結構30可增加出射光L3的可視範圍，亦即增加視 角，因此本發明的影像光線偏折裝置能達到廣視角的功能。 參閱第二圖，本發明第二實施例影像光線偏折裝置的 不意圖。如第二圖所示，第二實施例的影像光線偏折裝置 包括光柵膜12及透光片2〇,光柵膜12具有表面微結構 D用以產生偏折作用，類似於第一圖中光柵膜丨〇的表面 微結構3G所產生的仙，其差異點在於，表面微結構32 具為左右非對稱的形狀，亦即表面微結構32包括複數個半 尖角突起狀、複數個鋸齒突起狀、複數個半圓弧突起狀、 複數個半尖肖好長條狀、魏健錢脊長條狀、複數 個半圓弧大脊長條狀、複數個半尖角凹陷狀、複數個鑛齒 8 201201164 凹 陷狀、複數個半圓弧凹陷狀、複數個半尖角凹柙 複數個鋸齒凹槽長條狀及複數個半圓弧凹槽長條狀、 其中之一。要注意的是，第二圖係以半尖角突起的至少 性實例，藉以說明本發明的特徵而已，並、為示範 明的範圍。 F用乂限定本發 由於上述的表面微結構32具有左右非對稱的 會使出射光L3偏折至特定方向，如第二 因Vertical Alignment, MVA) display. The conventional xenon display uses upper and lower electrodes to apply a voltage on the upper and lower sides of the liquid crystal layer to generate a vertical electric field, to twist the liquid crystal molecules to change the polarization state of the incident light, and then to match the upper and lower polarizers and the color filter of the optical axis perpendicular to each other. In order to produce the desired color image, the biggest problem with the display is that the viewing angle is too narrow 'especially in the lower viewing angle, there will be grayscale inversion around 3G degrees. In addition, the maximum contrast of TN monitors is about 1 〇〇〇: 卜 • General outdoor information display or TV must enable all users to correctly read the information on the display. 'Traditional TN display has a narrower = can not To meet the above requirements, outdoor information displays or televisions require a wide viewing angle technology such as IPS displays or MVA displays. In the conventional technology, the main feature of the IPS technology developed by Hitachi is to place the upper and lower electrodes of the TN display on the same side of the liquid crystal layer to generate a lateral electric field instead of a vertical electric field. The molecules are twisted in the horizontal direction to change the polarization state of the incident light. The liquid crystal arrangement of the technology allows the viewer to view almost the same cross-section of the 201101864 liquid crystal molecules at different angles, that is, to view the same surface from any angle. Almost the same 'so it can improve the viewing angle problem. In general, the viewing angle of the ips display can reach 170 to 178 degrees. The maximum contrast is about 1 〇〇 ^: In the conventional technology, the main feature of the VA technology or MVA technology developed by Fujitsu is Fujitsu. Ridge protrusions are placed on the inner side of different regions of the liquid crystal layer so that liquid crystal molecules of the same horizontal plane have different vertical tilt angles, and liquid crystal molecules in different regions are produced under viewing angle. The optical effects compensate each other so that the viewer can see the same average cross-section of the liquid crystal molecules at different angles, that is, increase the viewing angle range. The viewing angle of the MVA display can reach no degree, and the maximum contrast is about 5000:1. However, IPS technology, VA technology or MVA technology is improved for the array of cells in the liquid crystal display, so the manufacturing cost is higher than that of the TN display, and the transmittance of the IPS display or the MVA display is only 6 to 80% of the TN. . In addition, the reaction speed of IPS and VA is slower than TN. Taking the IPS technology as an example, the alignment direction of the liquid crystal molecules needs to be parallel to the glass substrate containing the liquid crystal layer, so that the electrodes can only be placed on one of the two glass plates, and the electrodes must be formed into an image-like comb, arranged in The lower surface of the liquid crystal layer causes a decrease in light transmittance and a decrease in contrast, and it is necessary to increase the degree of backlighting, resulting in an increase in the cost of the backlight of the backlight, increasing power consumption, and generating additional noise and heat dissipation, which is more likely to cause safety. Doubt. In the conventional technology, another solution for solving the viewing angle problem of the TN display is to use an optical compensation film or a wide viewing angle film (Wide Viewing Film), such as a wide viewing angle compensation film (Fuji Wide View Film) developed by Fujifilm. ), attached to the TN display, so that the wide viewing angle compensation film produces a negative phase retardation for the [s] light to compensate for the oblique view 4 201201164 shows the positive pure _, "Take the same The optical effect of the cross-section of different liquid crystal molecules is increased to increase the viewing angle. The wide viewing angle compensation film is different from the general polymer film, and the composition of the compound can increase the left and right viewing angles to the stiffness/disk shape. Adding to 120 degrees' but not solving the problem of grayscale inversion. The next angle is from the other - application © 'For large outdoor advertising placed on the building or high place' viewers are mainly located below = especially The advertisement content is displayed on the lower side. Therefore, the large outdoor area is only required to display the display function in a specific viewing angle range, and it is not necessary to have a wide viewing angle, but the outdoor advertising billboard needs a higher brightness, so the back second is particularly large. The problem of heat dissipation is even more important. w and the line deviation of the middle lamp = display function that requires the same viewing angle to form a wide viewing angle function = the disadvantage of the conventional technology. 乂Resolve the above [invention] The present invention - The aspect is to provide an image light to deflect the image light emitted from the outside to generate a polarized surface, and to emit the light and project it to the outside to provide a display function of the specific view (four) display direction and the different viewing angles. The display function of the wide viewing angle: and according to the embodiment of the present invention, the image light is biased to the gate film and the light transmissive sheet, wherein the grating film is stacked on the light transmissive sheet, and the light is composed of a light transmissive material and has The surface microstructure and surface microstructure are made using a full-image process and can include a plurality of protrusions, ridges, and recesses 201201164 trapped or grooved shapes that can produce an enlarged viewing angle or change the angle of light. In order to increase the viewing angle of the viewer and enhance the effect of the image signal, or to avoid the projection of the light to the other light side without the display benefit: to reduce the brightness of the light source, save electricity The power consumption is energy-saving. The image light deflecting device of the present invention can be attached to a general-purpose device, such as a light-transmitting adhesive to adhere to the liquid crystal display's polarized light I° to change the viewing angle. The visual effect of the range or the angle of the image exiting light, so that a TN liquid crystal layer having a relatively high light transmittance can be used to solve the problem caused by the VA or IPS liquid crystal layer in the conventional technology, and the shadow=light deflection device of the present invention can be used. Solve the problem of gray scale inversion, improve the viewing angle problem that can not be solved by the conventional optical compensation film' and apply the liquid crystal mode with faster reaction speed to the wide viewing angle display. ^ w [Embodiment] The following drawings and component symbols are used for the present invention. The embodiment will be described in more detail, so that the skilled person can implement it after studying the specification. The technical feature of the present invention utilizes the fabrication method of the full-image sheet to form a grating film 'by placing a grating film on the light-transmissive sheet or the display to expand the viewing angle or deflecting to a specific display angle' to exhibit a special visual effect, especially Directly applied to TN displays with high light transmittance. A full-image image showing a stereoscopic image or a Hologram is mainly recorded by Holography to record two coherent light (such as laser light generated by a beam splitter) at different angles. The interference fringes formed, wherein one of the light illuminates the target and is reflected and projected onto the photosensitive 201201164 piece and the other light is reflected by the mirror and then projected onto the same photosensitive piece, which is used as a reference light to form a reflected light with the target object. put one's oar in. Therefore, the photosensitive sheet as an optical hologram can record not only the light intensity but also the phase information, that is, the photosensitive material of the planar material records the image information containing the three-dimensional space. In theory, the body of the original object can be reconstructed by the information recorded by any of the local materials, so that the stereoscopic hologram identical to the real object can be seen as long as there is appropriate reconstruction light. Currently, optical holograms have been applied to security labels, laser images, optical pickups for DVDs, and omni-directional head-up displays. σ Referring to the first figure, the image light deflecting device of the first embodiment of the present invention is not intended. As shown in the first figure, the image light deflection device of the first embodiment includes a grating film 10 and a light-transmissive sheet 20 for deflecting the image light L1 ' incident from the outside, wherein the grating film 10 is stacked on the light-transmitting sheet 2 On the raft, the grating 貘1 构成 is composed of a light transmissive material and has a surface microstructure of 3 〇. The image light L1 is incident on the light-transmissive sheet from the outside to generate transmitted light B2, and the transmitted light L2 passes through the grating film 1G to generate the emitted light u and is projected to the outside. The image light L1 may include one of a polarized image light and a non-polarized image light, and the polarized image light may be generated by a liquid crystal display, and the polarized image light may be an electric indicator or an organic light emitting diode. One of the body and electronic paper displays is produced. For example, the light-transmitting sheet 29 may include at least one of a light sheet and a light-transmitting protective sheet, wherein the polarizer is used to polarize the image light in the image light L1, and The image light L1 is polarized to control the brightness of the rhyme u, and the money light protection provides a protection bearing function. For example, the polarizing plate 29 can be disposed on the transparent protective casing (i.e., the above-mentioned light-transmitting protective sheet) of the display device of 201201164 to support or protect the grating film. It is worth noting that if the grating film itself has a strong structure, it can also be placed outside the transparent protective casing without being protected by a transparent protective casing. The surface microstructure 30 of the grating film 10 includes a plurality of sharp-angled protrusions, a plurality of arc-shaped protrusions, a plurality of sharp-pointed ridges, a plurality of arc-shaped ridges, and a plurality of sharp-angled depressions. A plurality of arc-shaped recesses, a plurality of long-angled grooved strips, and a plurality of arc-shaped grooved strips are at least one of them, thereby causing a deflection. It is to be noted that the first drawing is an exemplified example in which the features of the present invention are not intended to limit the scope of the present invention. As in the first figure, the wavefront p 1 is a close-range wavefront generated by the light-transmissive ribs, and the wavefront R1 is a close-range wavefront generated by the surface microstructure 30 of the grating film 1〇, the wavefront p2 The long-range wavefront as produced by the light-transmissive sheet, and the wavefront R2 is the long-range wavefront produced by the surface microstructure 30 of the grating film 1〇. Comparing the wavefront p2 with the wavefront, the surface microstructure 30 can increase the visible range of the outgoing light L3, that is, increase the viewing angle. Therefore, the image light deflecting device of the present invention can achieve a wide viewing angle function. Referring to the second figure, the image light deflecting device of the second embodiment of the present invention is not intended. As shown in the second figure, the image light deflection device of the second embodiment includes a grating film 12 and a light-transmissive sheet 2, and the grating film 12 has a surface microstructure D for generating a deflection effect, similar to the grating in the first figure. The surface micro-structure 3G produced by the membrane crucible differs in that the surface microstructure 32 has a left-right asymmetric shape, that is, the surface microstructure 32 includes a plurality of semi-spike protrusions and a plurality of serrated protrusions. , a plurality of semi-circular protrusions, a plurality of semi-tips, long strips, Wei Jian Qianji long strips, a plurality of semi-circular arcs, long strips, a plurality of semi-spikes, and a plurality of ore teeth 8 201201164 A concave shape, a plurality of semi-circular concave shapes, a plurality of semi-curved concaves, a plurality of zigzag groove strips, and a plurality of semi-circular groove grooves, one of which. It is to be noted that the second drawing is an at least one example of a semi-sharp protrusion to illustrate the features of the present invention and is intended to be illustrative. F is used to define the hair. Since the surface microstructure 32 described above has left and right asymmetry, the emitted light L3 is deflected to a specific direction, such as the second cause.
=皮前!>3為經透光片20所產生的近距離波前，：二 為^光減U的表面微結構32所產生的近距離波^ 以，的是，第二圖係以半尖角突起狀為示範性實二藉 說明本發明的特徵而已，並非用以限定本發明的範!藉 示龙^第三圖’本發明第三實施m彡像紐偏折裝 思圖。如第三圖所示，第三實施例的影 、 匕括光柵膜14及顯示器4〇，光柵膜14且表 '"置 34，田、士，a 八有表面微結構 用以產生偏折作用，類似於第—圖中光柵膜i 〇 收：構30所產生的作用，其差異點在於，光柵膜i4係接 晶所射入的影像光線L1，該顯示器40可包括液 硕不器、電漿顯示器、有機發光二極體顯示 - 員不器的其中之一。 电卞Λ 要注意岐，第三圖係以尖角突起狀為示範性實例， ^說明本發明的特徵而已，並非用以限定本發明的範 個本因此’表面微結構34可包括複數個圓孤突起狀、複數 牛尖角突起狀、複數個鋸齒突起狀、複數個半圓弧突起 ，數個尖角突脊長條狀、複數個圓弧突脊長條狀、複 =半尖角突脊長條狀、複數個鋸齒突脊長條狀、複數個 弧突脊長條狀、複數個尖角凹陷狀、複數個圓弧凹陷 9 201201164 狀、複數個半尖角凹陷狀 圓弧凹陷狀、複數個尖角複數個鋸齒凹陷狀、複數個半 條狀、複數個半尖角凹槽=槽長條狀、複數個圓弧凹槽長 及複數個半圓弧凹槽長^條狀、複數個鋸齒凹槽長條狀 本發明影像光線偏^的至少其中之一。， 裝置可直接貼附至電視機裝置1特點在⑨，影像光線偏折 器、數位相框、可攜式電電腦顯示器、筆記型電腦顯示 戶外廣告看板等等的顯示d裝置顯示器、室内廣告看板及 度，進而提升影像訊息益上，以增加觀看者的觀看角 本發明影像光線偏折裝=二 有左右非對稱的形狀之 、另特點在於，可利用具 度至特定方向， 比如偏折構，改變出射光的偏折角 中之…例如，本發明 、右方、上方及下方的其 置於高處的室内廣告看I力線偏折裝置適合應用於安 偏折而集中朝向位於斜戶外廣告看板，讓出射光向下 射到沒有顯示效益的其他者，進而避免出射光投 廣告看板或交通可應用於路邊的 轉=顧及行車安全而須專注於前方路況^ 指二反==正側=近範圍的看板内容或交通 及右前側邊的以:角度觀看左前侧邊 的，並提高行車安t ㈣息給#駕敬的目 上述影像光線偏折裝置中光柵膜的表面微結構可 [S1 10 201201164 全像片的製作方式而製成，比如 用光學鏡組分成第—調性同的光線利 料的受光面上，受光二光線，並投射至透光性材 …，藉由第材料及光阻性材料的其 所接收的光照強度具有分編線 阻性材料的其中之 利用光敏㈣枓及光 定影及顯影製程，進而’配合適當的關液，進行 另外，值ί ί使受光面形成所需的表面微結構。 光片和光柵’在本發明之其他實施例中，透 S和先柵膜可利用一體成型之方式來製成，而不需個別 八圖攄以僅為用以解釋本發明之較佳實施例，並非 同之發明精神下何形式上之限制，是以，凡有在相 應包括在二御或變更’皆仍 【圖式簡單說明】 =讓本發明之上述和其他目的、特徵、和優點能更明 ‘々aBL上文特舉一較佳實施例，並配合所附圖式，作詳 細說明如下： 第圖為本發明第一實施例影像光線偏折裝置的示意 圖。 第二圖為本發明第二實施例影像光線偏折裝置的示意 圖。 第三圖為本發明第三實施例影像光線偏折裝置的示意 [S1 11 201201164 【主要元件符號說明】 10 :光柵膜 12 ： 14 :光柵膜 20 ： 30 :表面微結構 32 ： 34 :表面微結構 40 ： D1 :方向 L1 ： L2 :透射光 L3 ： P : 波前 P1 ： P2 :波前 P3 : R1 :波前 R2 ： R3 :波前 光柵膜 透光片 表面微結構 顯示器 影像光線 出射光 波前 波前 波前= front of the skin! > 3 is a close-range wavefront produced by the light-transmissive sheet 20, and the second is a close-range wave generated by the surface microstructure 32 of the light-reducing U, and the second image is The semi-spike protrusion is an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. The third embodiment of the present invention is a third embodiment of the present invention. As shown in the third figure, the shadow of the third embodiment, including the grating film 14 and the display 4, the grating film 14 and the table '" 34, Tian, Shi, a 八 have a surface microstructure for the deflection The effect is similar to that of the grating film i in the first figure: the effect produced by the structure 30 is that the grating film i4 is connected to the image light L1 incident by the crystal, and the display 40 may include a liquid master, Plasma display, organic light-emitting diode display - one of the members. The surface of the third embodiment is exemplified by a sharp-angled protrusion, and the features of the present invention are described, and are not intended to limit the scope of the present invention. Lonely protruding, multiple horns protruding, multiple zigzag protrusions, multiple semi-circular protrusions, several sharp horns long strips, multiple arc ridges long strips, complex = half sharp corners Long strips of ridges, long strips of serrated ridges, strips of multiple arcuate ridges, multiple corners of concave corners, multiple arcuose depressions 9 201201164, multiple semi-pointed concave concave arcs a plurality of sharp corners, a plurality of sawtooth concave shapes, a plurality of half strips, a plurality of half sharp corner grooves = a long strip shape, a plurality of circular arc groove lengths, and a plurality of semicircular arc grooves long strips, The plurality of sawtooth grooves are strip-shaped and at least one of the image light rays of the present invention. The device can be directly attached to the television device 1 featuring a display device, an image display device, a digital photo frame, a portable computer display, a notebook computer display outdoor advertising billboard, etc. Degree, and thus enhance the image information to increase the viewer's viewing angle. The image light deflection device of the present invention has two asymmetric shapes, and is characterized in that it can be used to a specific direction, such as a partial configuration. Changing the deflection angle of the outgoing light... For example, the present invention, the right side, the upper side and the lower part of the indoor advertising placed at a high position, the I-line deflection device is suitable for application in the deflection and concentrated toward the oblique outdoor advertising billboard Let the outgoing light shoot down to other people who do not show the benefits, and then avoid the emission of light to advertise billboards or traffic can be applied to the roadside turn = take into account the driving safety and must focus on the front road conditions ^ refers to the second == positive side = Near-range kanban content or traffic and the right front side of the right side of the angle: viewing the left front side of the angle, and improve the driving safety t (four) interest to # 敬敬目The above image light deflection device The surface microstructure of the grating film can be made by [S1 10 201201164 full-image film, for example, the light-receiving surface of the light-weighted material with the optical mirror component is received, and the light is received and transmitted to the light. The material... is obtained by using the photosensitive material and the photo-fixing and developing process by the light-receiving material of the material and the photoresist having the light-receiving material, and then performing the appropriate liquid sealing process. In addition, the value ί causes the light receiving surface to form the desired surface microstructure. Light Sheets and Gratings' In other embodiments of the invention, the S-through and the first gate films may be fabricated in one piece, without the need for individual figures, to merely illustrate the preferred embodiment of the invention. It is not the same as the formal limitation of the invention spirit, so that any of the above-mentioned and other purposes, features, and advantages of the present invention can be DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a schematic view showing an image light deflection device according to a first embodiment of the present invention. The second figure is a schematic view of an image light deflecting device according to a second embodiment of the present invention. The third figure is a schematic diagram of an image light deflection device according to a third embodiment of the present invention [S1 11 201201164 [Major component symbol description] 10: Grating film 12: 14: Grating film 20: 30: Surface microstructure 32: 34: Surface micro Structure 40: D1: Direction L1: L2: Transmitted light L3: P: Wavefront P1: P2: Wavefront P3: R1: Wavefront R2: R3: Wavefront grating film Translucent sheet surface Microstructure display Image light exits light wavefront Wavefront wavefront