經濟部中央樣準局貝工消费合作社印製 A7 __ B7 五、發明説明（1 ) 4⑽湖 〔產業上之利用領域〕 本發明係關於變換光路及稜鏡薄膜及適用該稜鏡薄膜 之分散型顯示裝置。 〔先前之技術〕 利用散亂方式之分散型顯示裝置之基本構成係由有無 附加電壓控制光之散亂狀態及透過狀態之電氣光學材料層 ，及光吸收層而成。 用圖說明該表示原理。圖7表示先前所用利用散亂方 式之分散型顯示裝置之斷面圓。圓7中，1爲電氣光學材 料層，2爲光吸收層，圖7 (A)表示附加電壓之光透過 狀態，圖7 (B)表示未附加電壓之光散亂狀態。附加電 壓之狀態時，如圖7(A)所示，來自上方周圍之光，係 仍舊透過電氣光學材料層1被配置於背面之光吸收層2成 黑顯示。針對此，未附加電壓之狀態時，如圓7 (B)所 示，來自上方周圍之光，大部分以電氣光學材料層1散亂 *成乳白色顯示。適宜組合該黑顯示與乳白色顯示以實施 任意顯示》如此，利用散亂方式之分散型顯示裝置因構造 簡單故先前迄今曾提出多案。 〔發明欲解決之課題〕 然而，先前之利用散亂方式之分散型顯示裝置，係如 圖7 ( B )之破線所示，即使未附加電壓之狀態，惟一部 分光通過電氣光學材料層1，以迷光達光吸收層2 »因此 本紙張尺度逍用中國國家樣準（CNS ) A4規格（210X297公釐） 1~ ^1. m 1^1 n^l ^HB HI n^i I ^^^1 ml nn t^i—· HI n^i ^^4 .¾. Λ# 1 (請先閲讀背面之注^^項再¥寫本頁) -4 - 經濟部中央標準局貝工消费合作社印裝 A7 B7 五、發明説明（2 ) ^06200 ’該迷光不寄於乳白色顯示，散亂狀態與透過狀態之光度 比之對比約低5，而無法獲得明暗分明之良質顯示品位》 又，並未提出改善此狀態之具有光學機能之構件之提案。 本發明乃有鑑於前述情事，目的在提供利用散亂方式 之高對比之分散型顯示裝置，並爲達成此目的，提供最適 之稜鏡薄膜。 〔解決課題之方法〕 1 . 一種分散型顯示裝置，其特徵爲：可視光線以電 控制成散亂狀態與透過狀態之電光學材料層與吸收可視光 線之光吸收層相對，在前述電光學材料層與前述光吸收層 間配置相對於前述電光學材料層之面形成多數凸部或凹部 之透明稜鏡薄膜，在前述稜鏡薄膜與前述光吸收層間配置 具有比前述稜鏡薄膜之屈折率低之屈折率之低屈折率層。 2 .如申請專利範圍第1項所述之分散型顯示裝置， 其中，前述凸部或凹部係斷面形狀爲三角形略平行之尾根 狀凸部或凹部。 3 ·如申請專利範圍第1項所述之分散型顯示裝置， 其中前述凸部或凹部係多角錐。 4 .如申請專利範圍第3項所述之分散型顯示裝置， 其中前述多角錐係三角錐、四角錐或六角錐。 5 .如申請專利範圍第1至4任一項所述之分散型顯 示裝置，其中前述凸部或凹部係頂角30°〜150°範 圍》 本紙張尺度適用中國國家梯準（CNS ) A4規格（210X297公釐） (請先閲讀背面之注意事項再冬寫本頁) 訂 經濟部中央標準局貝工消費合作社印掣 A7 B7 五、發明説明（3 ) 6 .如申請專利範圍第1至5任一項所述之分散型顯 示裝置，其中前述凸部或凹部之形成節距爲1 〇 3 0 0卩m範圍。 7. 如申請專利範圍第1至6任一項所述之分散型顯 示裝置，其中前述電光學材料層使用液晶材料。 8. 如申請專利範圍第1至7任一項所述之分散型顯 示裝置，其中前述低屈折率層爲空氣。 9 · 一種稜鏡薄膜，其特徵爲：透明薄膜之一方之面 形成多數凸部或凹部。 1 0 .如申請專利範圍第9項所述之稜鏡薄膜，其中 前述凸部或凹部係斷面形狀三角形略平行之尾根狀凸部或 凹部。 1 1 .如申請專利範圍第9項所述之稜鏡薄膜，其中 前述凸部或凹部係多角錐。 1 2 .如申請專利範圍第1 1項所述之稜鏡薄膜，其 中前述多角錐，係三角錐、四角錐、或六角錐。 1 3 .如申請專利範圍第9至1 2任一項所述之稜鏡 薄膜，其中前述凸部或凹部係頂角爲3 0°〜1 5 0。範 圍。 1 4 .如申請專利範圍第9至1 3任一項所述之稜鏡 薄膜’其中前述凸部或凹部之形成節距爲1 〇 #m〜 3 0 0 β m範圍。 〔作用〕 本紙張尺度適用中國围家棵準（CNS > A4规格（210X297公釐） ^^^1 am tfm n^u ^^—^1 t ^^^1 ^^^1' mt nn E 一eJ * (請先聞讀背面之注意事項寫本頁) 經濟部中央標準局貝工消费合作社印製 A7 B7 五、發明説明（4 ) 406200 上述技術方法作用如下。 申請專利範圍第1項記載之分散型顯示裝置，係如圖 1所示，電氣光學材料層1爲透過狀態時，如圖1 (A) 所示，觀察者自箭頭方向A通過稜鏡薄膜3及低屈折率層 4直視光吸收層2，可得知先前之黑顯示。 對此，電氣光學材料層1爲散亂狀態時，如圖1 (B )所示，周圔光之中，先前達光吸收層2不寄於散亂之迷 光，由稜鏡薄膜3及低屈折率層4回至電氣光學材料層1 而散亂。因此，觀察者自箭頭方向A看出比先前散亂強度 增加，更明亮之乳白色顯示。此乃因有屈折率低之低屈折 率層4配置於棱鏡薄膜3之光吸收層側致低角度射入低屈 折率層4之前述迷光全被反射而被打回電氣光學材料層1 之故。 又，電氣光學材料層1爲透過狀態時，有時來自側方 之光出現於觀察者之顯示面側，惟因以低角度自顯示面出 現，而無法達略自正面觀察之觀察者眼故對黑顯示無任何 影響。 申請專利範圍第2項記載之分散型顯示裝置，係如申 請專利範圍第1項記載之分散型顯示裝置中，在其可有效 活用來自一定側方向之周圍光。因此，如從天花板之一定 方向照明觀察之分散型顯示裝置中有效作用。 申請專利範圔第3項記載之分散型顯示裝置，係如申 請專利範圍第1項記載之分散型顯示裝置中，尤可有效活 用來自各側方向之周圍光。因此，即使在周圍光亮場所， 本紙張尺度適用中國國家標率（CNS ) A4規格（210X297公釐） ------Ί----私| I I I I 訂 (請先閱讀背面之注項再好寫本頁) A7 B7 ~^ΖΖΓ(~~； ϊΟβ^Οϋ 五、發明说明（5 ) 亦可獲得更明亮之乳白色顯示。 申請專利範圍第4項記載之分散型顯示裝置，係如申 請專利範圍第3項記載之分散型顯示裝置中，尤可在稜鏡 薄膜全面形成底面爲正三角形，正四角形或正六角形之多 角錐凸部或凹部，更可完全活用周圍光。在圖2(A)( B ) (C)將本申請專利事項之稜鏡薄膜平面略圓以實線 表示多角錐之底邊，而以破線表示稜邊。 申請專利範圍第5項記載之分散型顯示裝置係如申請 專利範圍第1至4任何一項記載之分散型顯示裝置中，尤 可將周圍光有效活用於乳白式顯示。 申請專利範圍第6項記載之分散型顯示裝置係如申請 專利範圍第1至5任何一項記載之分散型顯示裝置中，尤 可在電氣光學材料層爲散亂狀態，將先前達到吸收膜之周 圍光確實有效回至電氣光學材料層，並不致視認棱鏡薄膜 之凸部或凹部。 申請專利範圍第7項記載之分散型顯示裝置，係如申 請專利範圍第1至6任何一項記載之分散型顯示裝置中， 經濟部中央橾率局貝工消費合作社印製 尤因前述電氣光學材料層使用液晶材料，故容易獲得利用 散亂方式之分散型顯示裝置，並可以低電壓，省電力轉換 透過狀態，散亂狀態。又因液晶材料具有可撓性，故亦可 填充於表面具備透明電極之樹脂薄膜間，做各種變形使用 〇 申請專利範圍第8項記載之分散型顯示裝置，係如申 請專利範圍第1至7項記載之分散型顯示裝置中，尤以空 本紙張尺度適用中國國家標準（CNS ) A4洗格（210X297公釐） ^^1- ^ia— i— « I— m^i 1 n n ml ml、一 -^ (請先閲讀背面之注意事項再私寫本頁) -8 - 經濟部中央梯準局貝工消費合作社印製 A7 B7 五、發明説明（6 ) 4刪⑽ 氣形成低屈折率層。因此不用特殊構件做爲低屈折率層艮Ρ 可獲得如上述申請專利範圍第1至7項之作用。 將申請專利範圍第9至14項記載之稜鏡薄膜適用於 分散型顯示裝置時，即可分別實現申請專利範圍第1至6 項記載之分散型顯示裝置。 〔實施例〕 用圖1說明本發明之一實施例。本實施例1之分散型 顯示裝置，係在電氣光學材料層1與光吸收層2間配置稜 鏡薄膜3，而在稜鏡薄膜3與光吸收層2之間，夾低屈折 率層4之空氣層。 電氣光學材料層1係在表面形成I TO (銦、錫氧化 物）製透明電極1 2之一對基材1 1間，挾持添加約3% 手徵劑（chiral agent)之脂肪酸型液晶材料者，將板厚 爲1 . 1_基材11之間隔爲12jwm。經開關15接電 源以便將適宜電壓附加於各透明電極1 2。 本實施例之分散型顯示裝置，係電氣光學材料層1使 用液晶材料，惟基材表面無需控制液晶材料配向方向之配 向膜* 稜鏡薄膜3係在厚1 0 0 之聚碳酸酯薄膜之電氣 光學材料層1側表面以3 0 節距形成頂角9〇。之四 角錐、而低屈折率層4側形成平滑面者。 光吸收層2係厚1 mm之黑色氯化塑膠製板。 低屈折率層4係厚約0 . 5mm之空氣層。在稜鏡薄膜 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐） —-—J-----私— (請先閲讀背面之注意事項再Ϊ本頁) 、ΤΓ A7 B7 五、發明説明（7 3與光吸收層2間，使光吸收層2不直接與稜鏡薄膜3接 觸適宜配置墊片。 本實施例中，如圓1 (Α)所示，接上開關15將電 壓附加於液晶材料時，液晶材料依附加電壓向一方向有規 則排列’整體成光學上均質層，射入光透過直進成黑顯示 。針對此’如圖1 (Β)所示，切斷開關15時，液晶材 料成不規則狀態，射入光在液晶材料內被散亂成乳白色顯 示。此時，因散亂光之一部分通過電氣光學材料層1，惟 在稜鏡薄膜3與低屈折率層4之界面全部被反射，再射入 電氣光學材料層1再度散亂，以散亂光出現顯示面側故有 利於乳白色。 經濟部中央標準局貝工消费合作社印製 ^^^1· ^^1^ ^^—^1 mu m nn in^i-4^^ mB IK n^i Bn— , · m3. 、vs (請先閲讀背面之注意事項再，¾寫本頁) 以水平配置該分散型顯示裝置，自周圍均勻照明，測 定附加電壓時（乳白色顯示）與附加1 0伏特電壓時（黑 顯示）之光度比之對比，以圖4實線表示◊圓4中，縱軸 表示對比，橫軸表示自分散型顯示裝置之顯示表樹立之法 線向左方向（―方向）及右方向（+方向）之傾斜角度（ 視野角），對比愈高，表示顯示面之明暗差大，即鮮明之 良質顯示。圖4中，爲便於比較，以破線表示僅未用稜鏡 薄膜3及低屈折率層4，而其他構成完全相同之先前構造 之分散型顯示裝置之同樣關係。 由圖4 *可知，先前構造之法線方向之對比爲1 : 5 ，而本實施例可得約1:比之高對比β 可適用於本實施例之稜鏡薄膜3之材質亦不限於聚碳 酸酯，例如聚乙烯對苯二甲（PET)或多次甲基園偏吖 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）~~ -10 - 經濟部中央標準局負工消费合作社印簟 A7 B7 五、發明説明（8 ) 406200 啶（PMMA)等亦可得同樣效果。 更又，稜鏡薄膜3之膜厚雖無須限定爲1 0 〇 //m， 惟若膜厚不滿5 0 時薄膜本身之強度，剛性不足，製 造成品率顯著降低，且處理非常繁雜。一方面，若膜厚超 過5 0 0 時薄膜本身之光吸收無法忽視。 本實施例係使用玻璃製基材，惟本發明可適用之基材 並不限於此，而P E T製等透明樹脂基材當亦可適用，惟 因無須將基材間隔嚴密控制如TN方式或S TN方式之液 晶顯示裝置，故即使使用可撓樹脂材料，與稜鏡薄膜，低 屈折率層，更與光吸收層一同變形成曲面狀，亦可獲得充 分之對比。 又，本實施例使用相轉移型電氣光學材料層，惟樹脂 中分散液晶材料之高分子分散型，將液晶材料封進微膠襄 之微膠嚢型，更將透明構件填充於液晶材料中型之電氣光 學材料層亦可發揮完全同樣之作用效果。 〔實施例2〕 以實施例2說明本發明之其他實施例。本實施例僅與 前述實施例1所用稜鏡薄片不同。本實施例所用之稜鏡薄 膜係在厚1 0 0 之聚碳酸酯薄膜表面以3 0 節距 形成頂角90°斷面形狀爲三角形略平行之尾根狀凸部者 。將該稜鏡薄膜，向橫方向走尾根配置於電氣光學材料層 與低屈折率層間· 垂直配置本實施例之分散型顯示裝置，自天花板方向 本紙張尺度適用中國國家標準（CNS)A4規格（ 210X297公釐） (請先閲讀背面之注意事項再#鳥本頁)Printed by A7 __ B7 of the Central Samples Cooperative Bureau of the Ministry of Economic Affairs __ B7 V. Description of the Invention (1) 4 Pohu [Industrial Use Field] The present invention relates to changing the optical path and the 稜鏡 film and the dispersion type applicable to the 稜鏡 film Display device. [Previous Technology] The basic structure of a dispersion-type display device using a scattering method is formed by an electric optical material layer with and without an applied voltage to control the scattered and transmitted states of light, and a light absorption layer. The principle of this representation will be described with reference to the drawings. Fig. 7 shows a cross-section circle of a conventional dispersion type display device using a scatter method. In the circle 7, 1 is an electro-optical material layer and 2 is a light absorbing layer. Fig. 7 (A) shows a light transmission state with applied voltage, and Fig. 7 (B) shows a light scattering state without applied voltage. When the voltage is applied, as shown in Fig. 7 (A), the light from the upper surroundings is still displayed through the light absorbing layer 2 disposed on the back side through the electro-optical material layer 1 and displayed in black. In view of this, in a state where no voltage is applied, as shown by circle 7 (B), most of the light from the surroundings above is scattered by the electro-optical material layer 1 * shown as milky white. It is appropriate to combine the black display and the milky white display to implement an arbitrary display. Thus, since the dispersed display device using the scattered method has a simple structure, many cases have been previously proposed. [Problems to be Solved by the Invention] However, as shown in the broken line of FIG. 7 (B), the previous dispersive display device using the scattered method shows that even though no voltage is applied, only a part of the light passes through the electro-optical material layer 1, Use Miguangda light absorbing layer 2 »Therefore, this paper size is in accordance with China National Standard (CNS) A4 (210X297 mm) 1 ~ ^ 1. M 1 ^ 1 n ^ l ^ HB HI n ^ i I ^^^ 1 ml nn t ^ i— · HI n ^ i ^^ 4 .¾. Λ # 1 (Please read the note on the back ^^ item before writing this page) -4-Printed by the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs Install A7 B7 V. Description of the invention (2) ^ 06200 'The light is not sent to the milky white display, the contrast ratio between the scattered state and the transmitted state is about 5 lower, and it is not possible to obtain bright and dark display quality. A proposal has been made to improve the state of the optically-functional member. The present invention has been made in view of the foregoing circumstances, and an object thereof is to provide a dispersive display device using a high contrast in a scatter mode, and to achieve this, an optimum thin film is provided. [Methods to Solve the Problem] 1. A dispersion-type display device characterized in that the visible light is electrically controlled in a scattered state and a transmission state with an electro-optical material layer opposite to a light-absorbing layer that absorbs visible light. A transparent cymbal film having a large number of convex portions or concave portions with respect to the surface of the electro-optical material layer is arranged between the layer and the light absorbing layer, and the yoke film and the light absorbing layer are arranged between the ytterbium film and the light absorbing layer with a lower refractive index than the ytterbium film. Low inflection rate layer. 2. The dispersion-type display device according to item 1 of the scope of patent application, wherein the convex portion or the concave portion is a triangular root-like convex portion or concave portion whose cross-sectional shape is slightly parallel to the triangle. 3. The dispersion-type display device according to item 1 of the scope of patent application, wherein the convex portion or the concave portion is a polygonal pyramid. 4. The decentralized display device according to item 3 of the scope of patent application, wherein the aforementioned polygonal pyramid is a triangular pyramid, a quadrangular pyramid, or a hexagonal pyramid. 5. The decentralized display device according to any one of the claims 1 to 4, wherein the convex or concave portions are in the range of 30 ° ~ 150 °. The paper size is applicable to China National Standard Ladder Standard (CNS) A4. (210X297 mm) (please read the precautions on the back before writing this page in winter) Order the seal of the Central Bureau of Standards of the Ministry of Economic Affairs of the Shellfish Consumer Cooperatives A7 B7 V. Description of the invention (3) 6. If the scope of patent application is 1 to 5 The dispersion-type display device according to any one of the preceding claims, wherein a pitch of formation of the convex portion or the concave portion is in a range of 10300 μm. 7. The dispersion type display device according to any one of claims 1 to 6, wherein a liquid crystal material is used as the electro-optical material layer. 8. The dispersion type display device according to any one of claims 1 to 7, wherein the low-refractive-index layer is air. 9 · A rubidium film, characterized in that one side of a transparent film is formed with a large number of convex portions or concave portions. 10. The thin film according to item 9 of the scope of the patent application, wherein the convex portion or the concave portion is a tail-root-shaped convex portion or concave portion having a triangular shape in a cross section that is slightly parallel. 1 1. The thin film according to item 9 of the scope of patent application, wherein the convex portion or the concave portion is a polygonal pyramid. 12. The thin film according to item 11 of the scope of patent application, wherein the aforementioned polygonal pyramid is a triangular pyramid, a quadrangular pyramid, or a hexagonal pyramid. 1 3. The thin film according to any one of claims 9 to 12, in which the apex angle of the convex portion or the concave portion is 30 ° ~ 150. Range. 14. The thin film 'according to any one of claims 9 to 13 in the scope of the patent application, wherein the formation pitch of the aforementioned convex portion or concave portion is in the range of 10 #m to 3 0 0 β m. [Function] This paper size is applicable to Chinese family standard (CNS > A4 size (210X297 mm) ^^^ 1 am tfm n ^ u ^^ — ^ 1 t ^^^ 1 ^^^ 1 'mt nn E 1 eJ * (Please read the notes on the back to write this page first) A7 B7 printed by the Shellfish Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Description of the invention (4) 406200 The above technical method works as follows. The dispersed display device is shown in FIG. 1, and when the electro-optical material layer 1 is in a transparent state, as shown in FIG. 1 (A), the observer looks straight through the diaphragm 3 and the low-refractive-index layer 4 from the direction A of the arrow. The light absorption layer 2 can be used to know the previous black display. In this regard, when the electro-optical material layer 1 is in a scattered state, as shown in FIG. The disordered light is scattered from the thin film 3 and the low-refractive-index layer 4 back to the electro-optical material layer 1. Therefore, the observer can see from the direction of the arrow A that the intensity of the scattered light is increased, and the milky white display is brighter. The low-refractive-index layer 4 with a low-refractive index is disposed on the side of the light-absorbing layer of the prism film 3, which results in a low-angle incident low-inflexion. The above-mentioned blurred light of the refractive index layer 4 is totally reflected and returned to the electro-optical material layer 1. In addition, when the electro-optical material layer 1 is in a transmissive state, light from the side sometimes appears on the display surface side of the observer. Appears at a low angle from the display surface, but cannot reach the viewer's eyes slightly from the front, so it does not have any effect on the black display. The dispersed display device described in the second patent application scope is as described in the first patent application scope. In the distributed display device, the surrounding light from a certain direction can be effectively used. Therefore, the distributed display device functions effectively when viewed from a certain direction of the ceiling. The distributed display described in the third item of the patent application The device is the dispersion type display device described in item 1 of the scope of patent application, which can effectively utilize the ambient light from each side direction. Therefore, even in the surrounding bright place, this paper scale applies the Chinese National Standard (CNS) A4 Specifications (210X297mm) ------ Ί ---- Private | IIII Order (please read the note on the back before writing this page) A7 B7 ~ ^ ZZZΓ (~~; ϊΟβ ^ Οϋ Note (5) A brighter milky white display can also be obtained. The decentralized display device described in item 4 of the scope of patent application is the decentralized display device described in item 3 of the scope of patent application. The convex part or concave part of the polygon with a regular triangle, a regular quadrangle or a regular hexagon can be formed, and the surrounding light can be fully utilized. In Fig. 2 (A) (B) (C), the plane of the thin film of the present invention is slightly rounded. The bottom edge of the polygonal cone is represented by a solid line, and the edges are represented by broken lines. The dispersed display device described in item 5 of the scope of patent application is the dispersed display device described in any one of the scope of patent applications 1 to 4, especially Ambient light can be effectively used for opalescent display. The dispersion type display device described in item 6 of the scope of patent application is the dispersion type display device described in any one of scopes 1 to 5 of the scope of patent application, and it may be used in a state where the electro-optical material layer is in a scattered state. The ambient light does return to the electro-optical material layer effectively, and does not make convex or concave parts of the prism film visible. The decentralized display device described in item 7 of the scope of patent application is the decentralized display device described in any one of scopes 1 to 6 of the patent application. The liquid crystal material is used as the material layer, so it is easy to obtain a dispersion type display device using a scatter method, and it is possible to switch between a transmission state and a scatter state with low voltage and power saving. Because the liquid crystal material is flexible, it can also be filled between resin films with transparent electrodes on the surface and used for various deformations. The dispersion display device described in item 8 of the scope of patent application, such as the scope of patent applications 1 to 7 In the decentralized display device described in the above item, the Chinese paper standard (CNS) A4 (210X297 mm) is applicable to the blank paper size. ^^ 1- ^ ia— i— «I— m ^ i 1 nn ml ml, I- ^ (Please read the notes on the back before writing this page privately) -8-Printed by A7 B7, Shellfish Consumer Cooperative, Central Stairway Bureau, Ministry of Economic Affairs 5. Description of the invention (6) 4 Delete the gas to form a low-inflection layer . Therefore, it is not necessary to use a special component as the low-refractive-index layer, and can obtain the effect as described in items 1 to 7 of the above-mentioned patent application. When the holmium films described in claims 9 to 14 are applied to a dispersed display device, the dispersed displays described in claims 1 to 6 can be realized separately. [Embodiment] An embodiment of the present invention will be described with reference to Fig. 1. The dispersion-type display device of the first embodiment is configured by a pseudo-thin film 3 between the electro-optical material layer 1 and the light-absorbing layer 2, and sandwiching the low-refractive-index layer 4 between the pseudo-thin film 3 and the light-absorbing layer 2 Air layer. The electro-optical material layer 1 is formed on the surface of one of the transparent electrodes 12 made of I TO (indium, tin oxide) on the substrate 1 and 1 and holds a fatty acid liquid crystal material containing about 3% of a chiral agent. The interval between the thickness of the substrate 11 and the substrate 11 is 12jwm. A power source is connected via the switch 15 to apply a suitable voltage to each transparent electrode 12. The dispersive display device of this embodiment is a liquid crystal material used for the electro-optical material layer 1. However, the substrate surface does not require an alignment film to control the alignment direction of the liquid crystal material. 稜鏡 Film 3 is an electrical film of a polycarbonate film with a thickness of 100. The side surface of the optical material layer 1 forms a vertex angle 90 at a pitch of 30. Those with a quadrangular pyramid and a smooth surface on the 4 sides of the low-refractive-index layer. The light absorbing layer 2 is a black chlorinated plastic plate with a thickness of 1 mm. The low-refractive-index layer 4 is an air layer having a thickness of about 0.5 mm. The standard of this paper is Chinese National Standard (CNS) A4 specification (210 × 297 mm) —-— J ----- Private— (Please read the precautions on the back before clicking this page), ΤΓ A7 B7 5 2. Description of the invention (7) Between the light absorption layer 2 and the light absorption layer 2, the light absorption layer 2 is not in direct contact with the rubidium film 3. It is appropriate to arrange a gasket. In this embodiment, as shown by circle 1 (A), connect the switch 15 to When a voltage is applied to the liquid crystal material, the liquid crystal material is regularly arranged in one direction according to the additional voltage. The whole is an optically homogeneous layer, and the incident light is transmitted straight into a black display. For this, as shown in Figure 1 (B), the switch is turned off. At 15 o'clock, the liquid crystal material is in an irregular state, and the incident light is scattered into a milky white display in the liquid crystal material. At this time, part of the scattered light passes through the electro-optical material layer 1, but in the thin film 3 and low refractive index The interface of layer 4 is completely reflected, and then injected into the electro-optical material layer 1 to scatter again. The scattered light appears on the display surface side, which is conducive to milky white. ^ 1 ^ ^^ — ^ 1 mu m nn in ^ i-4 ^^ mB IK n ^ i Bn—, m3. vs (Please read the precautions on the back before writing this page) Horizontally dispose the decentralized display device, uniformly illuminate from the surroundings, and measure the voltage when the voltage is applied (milk white display) and when the voltage is 10 volts (black display). The contrast of luminosity ratio is shown by the solid line in Fig. 4. In the circle 4, the vertical axis represents the contrast, and the horizontal axis represents the normal direction established by the display table of the self-dispersing display device to the left (-) and right (+) directions. The higher the angle of inclination (angle of view), the higher the contrast, indicating a large difference in brightness between the display surface, that is, a clear and good display. In Figure 4, for the sake of comparison, only broken film 3 and low-refractive-index layer 4 are used. , And the same relationship with other previously constructed decentralized display devices with the same structure. From Fig. 4 *, it can be seen that the contrast of the normal directions of the previous structure is 1: 5, and this embodiment can obtain a high contrast ratio of about 1: β The material that can be applied to the rubidium film 3 in this embodiment is not limited to polycarbonate, such as polyethylene terephthalate (PET) or polymethyl methacrylate. The paper size is applicable to Chinese National Standard (CNS) A4. Specifications (210X297 %) ~~ -10-Seal A7 B7, Consumer Work Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the Invention (8) 406200 Pyridine (PMMA), etc. The same effect can be obtained. It does not need to be limited to 10 〇 // m, but if the film thickness is less than 50, the film itself has insufficient strength and rigidity, the manufacturing yield is significantly reduced, and the processing is very complicated. On the one hand, if the film thickness exceeds 500, the film itself The light absorption cannot be ignored. This embodiment uses a glass substrate, but the substrate to which the present invention is applicable is not limited to this. Transparent resin substrates such as PET can also be used, but there is no need to closely space the substrates. Controlling liquid crystal display devices such as TN mode or S TN mode, so even if a flexible resin material is used, together with a rubidium film, a low-refractive-index layer, and a light-absorptive layer, it can be converted into a curved shape, and sufficient contrast can be obtained. In this embodiment, a phase transfer type electro-optical material layer is used, but a polymer-dispersed type in which a liquid crystal material is dispersed in a resin, a liquid crystal material is encapsulated in a microgel type, and a transparent member is filled in the liquid crystal material. The electro-optical material layer can also perform exactly the same effect. [Embodiment 2] Another embodiment of the present invention will be described with Embodiment 2. This embodiment is only different from the scallion sheet used in the foregoing embodiment 1. The thin film used in this embodiment is formed on the surface of a polycarbonate film with a thickness of 100 at a pitch of 30 °, and the cross-sectional shape is a triangular root-shaped convex portion that is slightly parallel to the triangle. The film is placed in the lateral direction between the electro-optical material layer and the low-refractive-index layer. The decentralized display device of this embodiment is arranged vertically. From the ceiling direction, the paper size applies the Chinese National Standard (CNS) A4 specification ( 210X297 mm) (Please read the notes on the back before #bird page)
、1T -11 - 經濟部中央標準局貝工消费合作社印装 A7 4Q62QQ b7_ 五、發明説明（9 ) 均勻照明，測定法線方向之對比。 結果，先前構造之分散型顯示裝置係如前示對比爲1 :5，而本實施例之分散型顯示裝置亦獲得1 : 7之對比 〇 〔實施例3〕 以實施例3說明本發明之其他實施例。本實施例僅與 前述實施例1所用稜鏡薄膜不同。本實施例所用棱鏡薄片 係在厚1 0 0 之聚碳酸酯薄膜表面以3 0 節距形 成頂角90°之三角錐或六角錐者。 以水平配置本實施例之分散型顯示裝置，自周圍均匀 照明，以測定法線方向之對比。 結果，先前構造之分散型顯示裝置之對比爲1 : 5， 而本實施例之具有稜鏡薄膜之分散型顯示裝置無論凸部爲 三角錐或六角錐獲得1:7之對比。 〔實施例4〕 以實施例4說明本發明之其他實施例。本實施例僅與 前述實施例1之稜鏡薄膜之凸部頂角不同。本實施例係使 用頂角爲30° ，60° ，120°及150°之稜鏡薄 膜構成分散型顯示裝置，以水平配置，自周圍均勻照明， 測定法線方向之對比。爲便於比較，用頂角爲2 0°及 1 6 0°之稜鏡薄膜構成分散型顯示裝置，同時測定對比 。將該測定結果以圖5表示。 本紙張尺度適用中國國家標準（CNS ) A4规格（210X297公釐) : - HH ^—^1 ^^^1 ^^^1 ^^^1 · n (請先閲讀背面之注意事項再¥寫本頁) -12 - A7 406200 b7 五、發明説明（10 ) 結果可確認頂角爲30°〜150°範圍即可獲得髙 對比，惟頂角超出此範圔時對比將降低。 〔實施例5〕 以實施例5說明本發明之其他實施例。本實施例僅與 前述實施例1之稜鏡薄膜之凸部形成節距不同。本實施例 使用凸部之形成節距爲1 0 ；um，1 0 〇 Am，2 0 0 以m及3 0 0 之稜鏡薄膜構成分散型顯示裝置，以水 平配置，自周圍均勻照明，測定法線方向之對比。爲便於 比較使用凸部之形成節距爲5//m及400μπι，500 以m之稜鏡薄膜構成分散型顯示裝置，同樣測定對比》將 該測定結果，以圓6表示。 結果，確認凸部之形成節距爲1 0 以上即可獲得 高對比之事實。一方面凸部加大其形成節距超過3 0 0 時，凸部被視認，損及顯示品位。 經濟部中央揉率局貝工消费合作社印製 (請先閲讀背面之注意事項再本頁) 以上表示具有電壓驅動之電氣光學材料層之分散型顯 示裝置之例，惟本發明中有效之電氣光學材料層並不僅限 於此，例如由所用周波數可將換爲散亂狀態與透過狀態之 電氣光學材料層當亦有效。 〔發明之效果〕 利用本發明之散亂方式之分散型顯示裝置，因散亂狀 態，幾乎全部光有效有利於散亂，故散亂狀態與透過狀態 之對比髙至約1 : 7，可得明暗鮮明之質優顯示品位· 本紙張尺度適用中國國家標準（CNS ) A4规格（210X297公釐) 13 A7 4ΰ.6200_ 五、發明説明（11 ) 又本發明之稜鏡薄膜，因適用於利用散亂方式之分散 型顯示裝置，故可顯著提高其對比。 稜鏡薄膜之凸部或凹部之斷面形狀爲三角形略平行之 尾根狀之凸部或凹部時，尤其對如天花板之一定方向照明 觀察之分散型顯示裝置可有效提高對比。 又*稜鏡薄膜之凸部或凹部之多角錐時，在周圍明亮 場所觀察之分散型顯示裝置尤可有效提高對比。此時，尤 以前述多角錐爲三角錐、四角錐或六角錐時，更可完全活 用周圍光，而可有效提高對比。 前述凸部或凹部之頂角爲30°〜150°範圍時， 尤可得高對比。 前述凸部或凹部之形成節距爲1 0 〜3 0 0 jam 範圍時，因可確實有效利用周圍光，故可實現高對比並顯 示品位良好之分散型顯示裝置。 前述電氣光學材料層使用液晶材料時，容易獲得髙對 比仍舊維持液晶顯示裝置具有之原有特性之分散型顯示裝 置。 經濟部中央揉準局貝工消费合作社印製 (請先閲讀背面之注意事項再¥寫本頁) 低屈折率層使用空氣時’不使用特殊構件做爲低屈折 率層即易獲得上述效果。 申請專利範圍第9至1 4項記載之稜鏡薄膜，即易實 現具有上述效果之分散型顯示裝置。 圖示之簡單說明： 圖1:說明本發明之分散型顯示裝置之一實施例之斷 本紙張尺度適用中國國家標準（CNS ) A4規格（2丨0X297公釐） A7 B7 40G2G0 爲附加電壓之透過狀態，（B)爲未附加 〇 本發明之稜鏡薄膜之實施例用之平面略圖 錐凸部，（B)爲四角錐凸部，（C)爲 ，實線表示多角錐底邊，破線表示多角錐 本發明之稜鏡薄膜之頂角用斜視圖，（A ，（B)爲四角錐凸部，（C)爲六角錐 本發明與先前例之分散型顯示裝置之對比 圖。 依本發明之分散型顯示裝置之對比與凸部 〇 依本發明之分散型顯示裝置之對比與凸部 〇 先前技術之分散型顯示裝置用之斷面略圖 電壓之透過狀態，（B)爲未附加電壓之 經濟部中央樣準局貝工消费合作社印裝 五、發明説明（12 ； 面略圖，（A ) 電壓之散亂狀態 圓2 :說明 ，（A )爲三角 六角錐凸部之圖 稜線。 圖3 :說明 )爲三角錐凸部 凸部之圓。 圖4 :說明 與視野角之關係 圖5 :說明 之頂角之關係圖 圖6 :說明 之間隔之關係圖 圖7 :說明 ，（A )爲附加 散亂狀態圖。 〔符號說明〕 1……電氣光學材料層 2 ......光吸收層 3……稜鏡薄膜 4 ......低屈折率層 (請先閲讀背面之注$項再妒為本頁) 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 15 A7 B7 五、發明説明（13 ) 11 ......基材 12……透明電極 15……開關 16 ......電源 ^^1· m m m I m m - - 牙 、-卩 (請先閱讀背面之注意事項再#寫本頁) 經濟部中央標準局員工消费合作社印製 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 16、 1T -11-Printed by the Shelling Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 4Q62QQ b7_ V. Description of the invention (9) Comparison of the direction of normal illumination with uniform illumination. As a result, the previously-designed distributed display device has a contrast ratio of 1: 5 as shown above, and the distributed display device of this embodiment also obtains a comparison of 1: 7. [Example 3] The third embodiment is used to explain other aspects of the present invention. Examples. This embodiment is different from the samarium film used in the foregoing embodiment 1 only. The prism sheet used in this embodiment is a triangle cone or a hexagonal cone with a vertex angle of 90 ° formed on the surface of a 100-thick polycarbonate film at a pitch of 30. The dispersion-type display device of this embodiment is arranged horizontally and uniformly illuminated from the surroundings to measure the contrast in the normal direction. As a result, the contrast ratio of the previously-configured dispersion type display device is 1: 5, and the dispersion type display device with the ytterbium film of this embodiment obtains a contrast ratio of 1: 7 regardless of whether the convex portion is a triangular cone or a hexagonal cone. [Embodiment 4] Another embodiment of the present invention will be described with Embodiment 4. This embodiment is only different from the apex angle of the convex portion of the sacrificial film of the foregoing embodiment 1. In this embodiment, a thin display device with apex angles of 30 °, 60 °, 120 °, and 150 ° is used to form a dispersive display device. It is horizontally arranged and uniformly illuminated from the surroundings to measure the contrast in the normal direction. In order to facilitate comparison, a dispersion type display device is formed with a holmium film having apex angles of 20 ° and 160 °, and the contrast is measured at the same time. The measurement results are shown in FIG. 5. This paper size applies to Chinese National Standard (CNS) A4 (210X297 mm):-HH ^ — ^ 1 ^^^ 1 ^^^ 1 ^^^ 1 · n (Please read the precautions on the back before writing ¥ (Page) -12-A7 406200 b7 V. Description of the Invention (10) The results confirm that the vertex angle can be obtained in the range of 30 ° ~ 150 °, but the contrast will decrease when the vertex angle exceeds this range. [Embodiment 5] Embodiment 5 will describe another embodiment of the present invention. This embodiment is different from the pitch of the convex portions of the ytterbium film of the foregoing embodiment 1 only. In this embodiment, the formation pitch of the convex portions is 10; um, 100A, 200, and m and 300 are formed of a thin film display device, which is horizontally arranged and uniformly illuminated from the surroundings. Contrast of normal directions. In order to facilitate the comparison, the projection pitches of the protrusions are 5 // m and 400 μm, and a 500-m-thick film is used to form a dispersive display device. The same measurement is performed. The measurement result is shown as circle 6. As a result, it was confirmed that the formation pitch of the convex portions was 10 or more, and the fact that high contrast was obtained. On the one hand, when the convex portion has a larger pitch than 300, the convex portion is visually recognized, and the display quality is damaged. Printed by the Central Government Bureau of the Ministry of Economic Affairs, Shelley Consumer Cooperative (please read the precautions on the back, and then this page). The above shows an example of a dispersed display device with a voltage-driven electro-optical material layer. The material layer is not limited to this. For example, an electro-optical material layer which can be changed to a scattered state and a transmission state by the number of cycles used is also effective. [Effects of the Invention] The dispersion-type display device using the scattering method of the present invention, because of the scattered state, almost all light is effective to facilitate the scattering. Therefore, the contrast between the scattered state and the transmission state is about 1: 7 and can be obtained. Bright, dark, and high-quality display grade. This paper size applies Chinese National Standard (CNS) A4 specifications (210X297 mm) 13 A7 4ΰ. 6200_ V. Description of the invention (11) The invention's thin film is suitable for The distributed display device in a random manner can significantly improve its contrast.时 When the cross-sectional shape of the convex or concave portion of the film is a triangular slightly parallel tail-like convex or concave portion, it is especially effective for a distributed display device such as a ceiling in a certain direction for observation. Also, when the polygonal pyramids of the convex or concave portions of the film are used, the dispersion type display device viewed in a bright surrounding area can effectively improve the contrast. In this case, especially when the aforementioned polygonal pyramid is a triangular pyramid, a quadrangular pyramid, or a hexagonal pyramid, the surrounding light can be fully utilized, and the contrast can be effectively improved. When the apex angle of the convex portion or the concave portion is in a range of 30 ° to 150 °, high contrast is particularly obtained. When the formation pitch of the convex portion or the concave portion is in the range of 10 to 3 0 jam, the surrounding light can be effectively used, so that a high-contrast and good-quality dispersion display device can be realized. When a liquid crystal material is used for the aforementioned electro-optical material layer, it is easy to obtain a dispersive display device in which the contrast ratio still maintains the original characteristics of the liquid crystal display device. Printed by the Central Labor Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperative (please read the precautions on the back, and then write this page). When using a low-inflection-rate layer, the above effect is easy to obtain without using a special component as a low-inflection-rate layer. The rubidium thin films described in the claims 9 to 14 of the scope of patent application, that is, a dispersion type display device having the above-mentioned effects are easily realized. Brief description of the figure: Figure 1: The paper size of one embodiment of the decentralized display device of the present invention is shown in Figure 1. The paper size is applicable to China National Standard (CNS) A4 specification (2 丨 0X297 mm) A7 B7 40G2G0 is the transmission of additional voltage State, (B) is a plane sketched cone convex portion used in the embodiment of the 稜鏡 film of the present invention, (B) is a quadrangular pyramidal convex portion, (C) is, a solid line represents the bottom of a polygonal cone, and a broken line represents Polygonal cones. An oblique view of the top corner of the ytterbium film according to the present invention. (A, (B) is a quadrangular pyramid convex portion, and (C) is a hexagonal cone. A comparison view between the present invention and the previous example of the dispersed display device. Contrast and convexity of the decentralized display device according to the present invention. Contrast and convexity of the decentralized display device according to the invention. Cross-sectional sketch voltage transmission state of the prior art decentralized display device. (B) is the Printed by the Central Samples Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperatives. 5. Description of the invention (12; outline drawing, (A) scattered state of voltage circle 2: description, (A) is the ridge line of the triangular hexagonal cone convex portion. Figure 3 : Explanation) is the convex part of the triangular cone Figure 4: The relationship between the explanation and the viewing angle. Figure 5: The relationship between the apex angle of the description. Figure 6: The relationship between the explanation intervals. Figure 7: The description, (A) is an additional scattered state diagram. [Symbol Explanation ] 1 ... Electro-optical material layer 2 ... Light absorbing layer 3 ... Thin film 4 ... Low inflection rate layer (please read the note on the back first and then be jealous of this page) This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 15 A7 B7 V. Description of the invention (13) 11 ...... substrate 12 ...... transparent electrode 15 ...... switch 16 .... .. Power supply ^^ 1 · mmm I mm--Teeth,-卩 (Please read the precautions on the back before #writing this page) Printed on paper standards of the China National Standards (CNS) A4 size (210X297 mm) 16