1353468 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種顯示裝置及液晶顯示面板，特別關 於一種具有調整發光方向功能之顯示裝置及液晶顯示面 板0 【先前技術】 目前液晶顯示裝置之使用越來越普遍，除了作為一般 桌上型電腦顯示器及筆記型電腦顯示器之外，目前液晶電 視的應用也迅速的發展。 請參照圖1所示，液晶顯示裝置（Liquid Crystal Display，LCD) 1係具有一背光模組10、一液晶顯示面板 11，其中液晶顯示面板U係依序包含有一下偏光板111、 一薄膜電晶體基板112、一液晶單元113、一彩色濾光片基 板114及一上偏光板115。 就上述結構而言，背光模組10係產生一光線，光線 係依序經過下偏光板111、薄膜電晶體基板112、液晶單元 113、彩色濾光片基板114及上偏光板115而射出，藉由電 壓控制液晶單元113之旋轉角度，俾使使用者觀看到一影 像晝面。 目别1使用者在觀看液晶顯不裝置1時’不論從何種 角度觀看，所見皆為相同影像，然而，當家庭中有兩位以 上的使用者觀賞液晶顯示裝置1時，有可能使用者所欲觀 賞的節目並不相同，是以如何使不同角度的使用者於觀看 1353468 液晶顯示裝置時可觀看到不同的影像，實為一有待解決之 課題。 ， 【發明内容】 有鑑於上述課題，本發明之目的為提供一種具有調整 發光方向功能之顯示裝置及液晶顯示面板，以使不同角度 之使用者於觀看顯示裝置時，可觀看到不同的影像。 緣是，為達上述目的，本發明之顯示裝置包含有一顯 示模組及一方向調整模纟且。其中，顯示模组係發射一光 線，方向調整模組設置於顯示模組之一側，顯示模組發射 之光線係射入方向調整模組，且方向調整模組具有一光柵 單元與一液晶單元，其中光栅單元之光柵週期與光線之波 長同'一等級。 緣是，為達上述目的，本發明之液晶顯示面板，液晶 顯示面板與一背光模組相鄰而設，液晶顯示面板係包含一 液晶顯示組件及一方向調整模組，且液晶顯示組件係設置 於方向調整模組與背光模組之間，背光模組所發射之一光 線係穿射液晶顯示組件且射入方向調整模組，方向調整模 組係具有一光柵單元與一液晶單元，其中光柵單元之光柵 週期係與光線之波長同一等級。 緣是，為達上述目的，本發明之顯示裝置包含有顯示 模組及一第一方向調整模組及一第二方向調整模組。其 中，顯示模組係發射一光線，且第一方向調整模組設置於 顯示模組之一側，此外，第一方向調整模組係具有一第一 1353468 光柵單元與一第一液晶單元，第二方向調整模組具有一第 二光柵單元與一第二液晶單元，第一方向調整模組係設置 於第二方向調整模組與顯示模組之間，光線係依序穿射第 一方向調整模組與第二方向調整模組，其中第一光柵單元 與第二光棚單元之光柵週期係與光線之波長同一等級。 緣是，為達上述目的，本發明之顯示裝置包含有一液 晶顯示面板及一背光模組，且液晶顯示面板與背光模組相 鄰而設。其中，液晶顯示面板包含有一液晶顯示組件、一 第一方向調整模組及一第二方向調整模組。此外第一方向 調整模組具有一第一光拇單元與一第一液晶單元，再者， 第二方向調整模組具有一第二光柵單元與一第二液晶單 元，第一方向調整模組設置於第二方向調整模組與液晶顯 示組件之間，背光模組發射之一光線係依序穿射液晶顯示 組件、第一方向調整模組與第二方向調整模組，其中第一 光柵單元與第二光柵單元之光柵週期係與光線之波長同 一等級。 承上所述，本發明之顯示裝置及液晶顯示面板係利用 方向調整模組來調控顯示裝置及液晶顯示面板的發光方 向。與習知技術相比，本發明係利用光柵週期與入射光線 之波長為同一等級，以使光線通過光柵時產生繞射來改變 光線射出顯示裝置或液晶顯示面板時的偏折方向。另外， 若顯示裝置中之顯示模組顯示有兩獨立晝面，藉由方向調 整模組的控制，位於顯示裝置不同角度的使用者亦可觀看 到不同的晝面。 1353468 【實施方式】 以下將參照相關圖式，說明依本發明較佳實施例之顯 示裝置及液晶顯示面板。 請參照圖2A與圖2B所示，本發明第一較佳實施例提 供一種顯示裝置2包含一顯示模組21及一方向調整模級 22，其中顯示模組21具有一出光面211，顯示模组21發 射之一光線經由出光面211而射入方向調整模組22中。 於本實施例中，顯示模組21可為有機電激發光 (Organic Electro-luminescence，OEL)顯示模組、無機電激 發光（Electroluminescence，EL)顯示模組、發光二極體（Light Emitting Diode，LED)顯示模組、液晶顯示模組（Liquid Crystal Display，LCD)、電裝顯示模組（Plasma Display Panel ’ PDP)、真空螢光顯示模組（Vacuum Fluorescent Display，VFD)、場致發射顯示模組（Field Emission Display，FED)或電致變色顯示模組（Electro-chromic Display)等。 請再參照圖2A與圖2B，本實施例之方向調整模組22 設置於顯示模組21鄰近出光面211之一側。其中，方向 調整模組22具有一第一基板221、一第二基板222、一光 柵單元223、一液晶單元224、一第一電極225、一第二電 極226、一第一配向膜227及一第二配向膜228。 其中，第一基板221與第二基板222相對而設，且第 一基板221可與顯示模組21相結合。當然，第一基板221 的設置位置亦可靠近但不接觸顯示模組21之出光面211 1353468 或為顯示模組21中之一基板（例如：當顯示模組21為液晶 顯示模組時，第一基板221可為液晶顯示模組之彩色濾光 片基板）。當然，第一基板221設置之位置與態樣可依照實 際需求而作調整。 ‘ 本實施例之光柵單元223與液晶單元224設置於第一 . 基板221及第二基板222之間，且光柵單元223可與第一 基板221相結合。當然，光柵單元223亦可與第一基板221 $ —體成形（未示於圖中）。另外，於本實施例中，光栅單元 - 223之材質可為南分子材料、二氧化砂（si〇2)或任何可 利用半導體製程來形成週期性結構之材料。 於圖2A與圖2B中，液晶單元224位於第一基板221、 第二基板222及光栅單元223之間’於此，第一電極225 與第二電極226分別設置於第一基板221與第二基板222 相面對之表面並將液晶單元224容置其中。於本實施例 二 中’第—電極225係與光柵單元223相鄰而設，且第一電 • 極225與光柵單元223係與第一基板221相結合。 ·· 另外，為了製作上之便利性，也可以先於第一基板2之1 . 之表面形成全面性的第一電極225，再將光柵單元223設 置於第—電極225之上（未示於圖中）。 於本貫施例中’第一電極225及第二電極226用以提 仏電％於液晶單元224，以利用電場的變化使液晶單元 224產生折射率的變化。， 另外’光柵單元223亦可與第二基板222相結合（未 示於圖ψ、，u + ；此化’液晶單元224位於第二基板222與第 1353468 一基板221及光柵單元223之間，第—電極225與第二電 極226分別設置於第二基板222與第一基板221相面對之 表面，並將液晶單元224容置其中。再者，光柵單元2幻 可貼附於第二基板222，當然，光柵單元223亦可與第二 基板222 —體成形。 於本實施例中，第一配向膜227及第二配向膜228可 分別設置在第一電極225及第二電極2：26之上，且第一配 向膜227亦可設置於光柵單元223之上，以提供液晶單元 224中之液晶具有相同方向排列之單一性。 於本實施例中，光柵單元223的光柵週期與顯示模組 21所發射之光線的波長同一等級，亦即，光柵單元223中 光柵週期的對數值（logarithm)與光線波長的對數值之差的 絕對值小於1’藉以使光線通過光柵單元223時產生繞射， 來改變光線射出顯示裝置2時的偏折方向。 由於液晶單元224之折射率會受到第一電極225及第 二電極226所提供之電場改變而產生改變’故，當液晶單 元224的折射率調整為等於光柵單元223的折射率時’射 進方向調整模組22的光線會直行通過方向調整模組22(如 圖2A所示）；反之，當液晶單元224的折射率與光柵單元 223的折射率實質上不相同時，射進方向调整模組22的光 線於射出方向調整模組22時因受刻繞射的影響而產生— 偏折光線（如圖2B所示），此時顯系裝，置2的發光方向即 與圖2A中的發光方向不同，藉由上述方法以達到改變發 光方向之目的。 10 1353468 此外，上述之偏折光線的偏折角度符合以下方程式： Θ ^sirT1(又 /Λ η) 其中，0為光線所產生偏折之角度，Λ為光柵單元223 的光柵週期，λ為光線的波長，η為出光環境之折射率。 因此，使用者可調控方向調整模組22來改變光線的 折射角度。 另外，如圖2Α與圖2Β所示，光柵單元223可包含複 數個平行四邊形之柱狀體、三角形之柱狀體（未示於圖中） 或任何具有週期性之不同結構。 接著，請參照圖3Α、圖3Β與圖3C所示，為本發明 第二較佳實施例之顯示裝置3,除了方向調整模組22中之 第一基板221及第二基板222間容置一高分子材料及一液 晶單元224，以使高分子材料形成光柵單元223之外，其 他元件之特徵與功能皆與第一較佳實施例相同元件相 同，在此不再贅述。 . 於第一基板221與第二基板222間封入高分子材料與 液晶枯料’再利用二UV光所產生的干涉明暗條紋對尚分子 材料進行固化（如圖3Α所示），使得高分子材料因明暗條 紋之光強度不同而凝固形成一特定方向且具有週期性的 光柵單元223，而液晶分子會被排除在凝固的光柵單元223 外，以形成液晶單元224並容置其中，當液晶單元224,的折 射率等於光柵單元223的折射率時，射進方向調整模組22 的光線會直行通過方向調整模組22(如圖3Β所示）；反之， 11 1353468 當液晶單元224的折射率與光柵單元223的折射率實質上 不相同時，射進方向調整模組22的光線於射出方向調整模 組22時因受到繞射的影響而產生一偏折光線（如圖3C所 示）。 於本實施例中，高分子材料可為NorlandProductsInc. 所生產之NOA65，其折射率為1.52。另外，液晶分子亦可 為Merck所生產的E7，其折射率nG(相對於正常光之折射率） 為1.52，折射率ne(相對於異常光之折射率）為1.75。 接著，再請參照圖4A、圖4B及圖4C所示，本發明 第三較佳實施例之液晶顯示裝置4，除了方向調整模組22 之光柵單元223更包含有一第一光栅區411及一第二光柵 區412之外，其他元件之特徵與功能皆與第一較佳實施例 相同元件相同，在此不再贅述。 如圖4A所示，當液晶單元224的折射率等於光柵單 元223時，射進方向調整模組22的光線會直行通過方向 調整模組22 ;反之，如圖4B所示，當液晶單元224受到 電場的影響而改變其折射率時，射進方向調整模組22的 光線於通過方向調整模組22時，因受到繞射的影響而產 生偏折，因而會改變光線的行進方向。承上所述，於通過 第一光柵區411的光線在射出方向調整模組22時會產生 一第一方向的偏折光線，於通過第二光栅區412的光線在 射出方向調整模組22時，會產生一第二方向的偏折光線。 當然，第一光柵區411及第二光柵區412可隨實際需 求而作調整，例如：如圖4C所示，第一光柵區411及第 12 1353468 -光柵區412可交錯設置’此種設計可讓使用者看到單一 方向之晝面尺寸。 再者’如圖4D所示，方向調整模組22之光柵單元223 更可包含一第三光栅區413,其中，第一光拇區4ιι、第 .二光柵區412及第三光柵區413為三㈣之柱狀體，且光 •線在通過第三光栅413而射出方向調㈣組22時，會產 生-第三方向的偏折光線。另外，若顯示單元21對應第 •—光柵！ 411、f二光柵區412及第三光柵區413的區域 顯不f晝面、一第二晝面及―第三晝面（例如第一晝 素區第一且素區、第二晝素區）時，位於第—方向之使 用者與位於第二方向及第三方向之使用者將會看到不同 的晝面。當'然，第—光柵區411、.第二光拇區412及第三 光栅區413亦可以交錯設置。 另外，當顯示模組21具有不同顏色之晝素時，方向 •調整模組22内之光柵單元223亦可隨對應之晝素而調 #整。例如’當方向調整模組22所欲產生的偏折光出光效 - ㈣1〇〇%，且在玻璃中之偏折角度為28.13度(經過玻璃 折射於空氣中後則為45度）時，則對應於紅光書素（波長為 645腿)之光柵單元223❾光柵週期須為91217腿，而光桃 單元223的厚度須為15.14阿時；而對應於綠光晝素（波長 為55〇nm)之光柵單元223的光柵週期須為777 7〇nm，而 光柵单兀223的厚度須為12.91μπι ;再者，對應於藍光晝 素（波長為450職）之光柵單元切白勺光极過期須為 636.30nm，而光柵單元223的厚度須為i〇.57pm。 13 1353468 其中，上述經過繞射後之偏折光線的主要偏折角度根 據Kogelnik’s原理符合以下方程式： η =sin2( π And/Xcos0jnc) 其中，77為偏折光之光效率，Qinc為光線入射之入射 角，A為光線的波長，Δη為光柵單元折射率之調變係數 (refractive index modulation) ° 當然，當本實施例之顯示模組21具有不同的晝素區 (如第一晝素區與第二晝素區）時，方向調整模組22的實施 態樣亦可隨之調整。 請再參照圖5A及圖5B所示，本發明第四較佳實施例 以提供一種顯示裝置5包含有一顯示模組51及一第一方 向調整模組52及一第二方向調整模組53，其中，第一方 向調整模組52設置在顯示模組51與第二方向調整模組53 之間。於此，顯示模組51發射一光線，此光線依序穿射 第一方向調整模組52及第二方向調整模組53。 如圖5A與圖5B所示，第一方向調整模組52主要包 含有一第一基板521、一第二基板522、一第一光柵單元 523、一第一液晶單元524、一第一電極（圖中未示）及一第 二電極（圖中未示）。 此外，第二方向調整模組53主要包含有一第三基板 520、一第四基板525、一第二光柵單元526、一第二液晶 單元527、一第三電極（圖中未示）及一第四電極（圖中未 示）。 14 1353468 於本實施例中，第一方向調整模組52與第二方向調 整模組53的特徵與功能係與第一較佳實施例之方向調整 模組22的特徵與功能相同，在此亦不再贅述。. 另外，於本較佳實施例中，第一方向調整模組52之 第二基板522係與第二方向調整模組53之第三基板520 相結合，當然，第三基板520與第二基板522亦可一體成 形。 再者，於本實施例中，第一液晶單元524之折射率係 受到第一電極（圖中未示）及第二電極（圖中未示）所提供 之電場改變的影響而產生改變，第二液晶單元526之折射 率係受到第三電極（圖中未示）及第四電極（圖中未示）所 提供之電場改變的影響而產生改變。 是以，如圖5A所示，當光線依序穿射第一方向調整模 組52及第二方向調整模組53時，若第一液晶單元524的折 射率等於第一光柵單元523，而第二液晶單元527的折射率 與第二光柵單元526折射率實質上不相等時，射入第一方 向調整模組52的光線會直行通過第一方向調整模組51而 射入第二方向調整模組53，接著，此光線於射出第二方向 調整模組53時因受到繞射的影響而產生一第一方向的偏 折光線。 反之，如圖5B所示，當第一液晶單元524的折射率與 第一光柵單元523實質上不相等，而第二液晶單元527的折 射率等於第二光柵單元526折射率時，射進第一方向調整 模組52的光線於射出第一方向調整模組52時因受到繞射 1353468 的影響而產生一第二方向的偏折光線，此第二方向的偏折 光線會直接通過第二方，向調整模組53，因而偏折光線會依 據第一方向調整模組52所產生之折射角度射出，換句話 說，利用倍頻控制所欲顯示的兩個不同晝面，不但可以讓 不同角度的使用者觀看到不同的晝面，並且以此方式所呈 現之晝面可為全解析度晝面。 本發明第五較佳實施例提供一種液晶顯示面板，液晶 顯示面板與一背光模組相鄰而設，液晶顯示面板包含一液 晶顯示組件以及一方向調整模組。其中，液晶顯示組件設 置於方向調整模組與背光模組間，背光模組所發射之一光 線穿射液晶顯示組件且射入方向調整模組，方向調整模組 具有一光柵單元與一液晶單元，其中光柵單元之光栅週期 與光線之波長同一等級，當液晶單元之折射率等於光柵單 元之折射率時，光線直行通過方向調整模組，當液晶單元 之折射率實質上不等於光柵單元之折射率時，光線射出方 向調整模組時會受到光線繞射影響而產生至少一方向之 偏折光線。 於本實施例中，液晶顯示組件依序包含有一下偏光 板、一薄膜電晶體基板、一另一液晶單元、一彩色濾、光片 基板及一上偏光板。而方向調整模組與第一較佳實施例之 方向調整模組22的特徵與功能相同，在此亦不再贅述。 另外，本發明第六較佳實施例提供一種液晶顯示面 板，液晶顯示面板與一背光模組相鄰而設，液晶顯示面板 係包含一液晶顯示組件、一第一方向調整模組與一第二方 1353468 向調整模組。其中，第一方向調整模組具有一第一光柵單 元與一第一液晶單元。第二方向調整模組具有一第二光柵 單元與一第二液晶單元，第一方向調整模組設置於第二方 向調整模組與液晶顯示組件間，背光模組發射之一光線並 依序穿射液晶顯示組件、第一方向調整模組與第二方向調 整模組，其中第一光柵單元與第二光柵單元之光柵週期與 光線之波長同一等級，當第一液晶單元之折射率等於第一 光柵單元之柝射率時，光線會直行通過第一方向調整模 組，當第一液晶單元之折射率實質上不等於第一光柵單元 之折射率時，光線於射出第一方向調整模組時會受到繞射 影響而產生一第一方向之偏折光線，當第二液晶單元之折 射率等於第二光柵單元之折射率時，光線會直行通過第二 方向調整模組，當第二液晶單元之折射率實質上不等於第 二光柵單元之折射率時，光線射出第二方向調整模組時會 受到繞射的影響而產生一第二方向之偏折光線。 於本實施例中，液晶顯示組件與第五實施例之液晶顯 示組件的特徵與功能相同，在此亦不再贅述。第一方向調 整模組及第二方向調整模組的特徵與功能與第一較佳實 施例之方向調整模組22的特徵與功能相同，在此亦不再 贅述。 本發明中之顯示模組（液晶顯示組件）所提供之影像圖 框的顯示頻率係可依照方向調整模組中光柵單元的變化 而做調整。 綜上所述，本發明之顯示裝置及液晶顯示面板係利用 .......... _ . 17___________ ____________________________________________ 方向調整模組來調控顯示 θ _ ^ , '衣置及液日日頌示面板的發先方 向。與習知技術相比，趣係利用方向調二=方 週期與入射光線之波長為：旲，，且中光柵 產生繞射，來改變光線射^ -t、，及以使光線通過光栅時 偏折方向1外，若顯示㈣士 Μ“心面板時的 ””、下4置令之顯不模έ且顏千古土概士 晝面，藉由方向調整模組獨立 角度的使用者亦可觀看到不同的晝面。、知衣置兩側不同 以上所述僅為舉例性，^ ^ ^ ^ ^ ^ ^ ^ ^ 本發明之精神與範#，而對生者。任何未脫離 應包含於後附之申請專利範圍中:效修改或變更，均 【圖式簡單說明】 =-種習知液晶顯示裝置之一結構示意圖； "舁圖2B為依據本發明第一較佳命丨日 置之-組結構示意圖； $ “劍之㈣ 圖^、圖3B及圖3(：為依據本發明第二較佳實施例 之“、、員不袁置之一組結構示意圖； 至圖4D為依據本發明第三較佳實施例之液 不襄置之一組結構示意圖；以及 、 與圖5B為錄本判第畴佳實施例之液晶顯 不衣置之一組結構示意圖。 、 元件符號說明： 1 :液晶顯示裝置 1353468 10 :背光模組 11 .液晶喊示面板 111 :下偏光板 112 .薄膜電晶體基板 113 :液晶單元 114 :彩色濾、光片基板 115 :上偏光板 2 :顯示裝置 21 :顯示模組 211 :出光面 22 :方向調整模組 221 :第一基板 222 :第二基板 223 :光柵單元 224 :液晶單元 225 :第一電極 226 :第二電極 227 :第一配向膜 228 :第二配向膜 3 :顯示裝置 4 :液晶顯示裝置 411 :第一光柵區 412 :第二光柵區 413 :第三光柵區 1353468 5 :顯示裝置 51 :顯示模組. 52 :第一方向調整模組 53 :第二方向調整模組 520 :第三基板 521 :第一基板 522 :第二基板 523 :第一光柵單元 524 :第一液晶單元 525 :第四基板 526 :第二光柵單元 527 :第二液晶單元1353468 IX. Description of the Invention: [Technical Field] The present invention relates to a display device and a liquid crystal display panel, and more particularly to a display device having a function of adjusting a light-emitting direction and a liquid crystal display panel 0. [Prior Art] Currently, a liquid crystal display device More and more common use, in addition to being a general desktop computer display and notebook computer display, the current application of LCD TV has also developed rapidly. Referring to FIG. 1 , a liquid crystal display (LCD) 1 has a backlight module 10 and a liquid crystal display panel 11. The liquid crystal display panel U includes a lower polarizing plate 111 and a thin film. The crystal substrate 112, a liquid crystal cell 113, a color filter substrate 114, and an upper polarizing plate 115. In the above configuration, the backlight module 10 generates a light, and the light is sequentially emitted through the lower polarizing plate 111, the thin film transistor substrate 112, the liquid crystal cell 113, the color filter substrate 114, and the upper polarizing plate 115. The rotation angle of the liquid crystal unit 113 is controlled by the voltage to enable the user to view an image plane. When the user views the liquid crystal display device 1 'when viewed from any angle, the same image is seen. However, when two or more users in the home view the liquid crystal display device 1, the user may The programs to be viewed are not the same. It is a problem to be solved when users of different angles can view different images when viewing the 1353468 liquid crystal display device. SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a display device and a liquid crystal display panel having a function of adjusting a light emitting direction so that users of different angles can view different images when viewing the display device. Therefore, in order to achieve the above object, the display device of the present invention comprises a display module and a directional adjustment module. The display module emits a light, the direction adjustment module is disposed on one side of the display module, and the light emitted by the display module is an injection direction adjustment module, and the direction adjustment module has a grating unit and a liquid crystal unit. , wherein the grating period of the grating unit is the same as the wavelength of the light. In order to achieve the above objective, the liquid crystal display panel of the present invention is disposed adjacent to a backlight module, and the liquid crystal display panel comprises a liquid crystal display component and a direction adjustment module, and the liquid crystal display component is configured. Between the direction adjustment module and the backlight module, one of the light emitted by the backlight module passes through the liquid crystal display component and enters the direction adjustment module, and the direction adjustment module has a grating unit and a liquid crystal unit, wherein the grating The grating period of the unit is the same level as the wavelength of the light. For the above purpose, the display device of the present invention comprises a display module, a first direction adjustment module and a second direction adjustment module. Wherein, the display module emits a light, and the first direction adjustment module is disposed on one side of the display module, and the first direction adjustment module has a first 1353468 raster unit and a first liquid crystal unit, The two-direction adjustment module has a second grating unit and a second liquid crystal unit. The first direction adjustment module is disposed between the second direction adjustment module and the display module, and the light is sequentially guided through the first direction. The module and the second direction adjustment module, wherein the grating period of the first grating unit and the second light unit is the same level as the wavelength of the light. Therefore, in order to achieve the above object, the display device of the present invention comprises a liquid crystal display panel and a backlight module, and the liquid crystal display panel is disposed adjacent to the backlight module. The liquid crystal display panel comprises a liquid crystal display component, a first direction adjustment module and a second direction adjustment module. In addition, the first direction adjustment module has a first optical unit and a first liquid crystal unit. Further, the second direction adjustment module has a second grating unit and a second liquid crystal unit, and the first direction adjustment module is configured. Between the second direction adjustment module and the liquid crystal display component, the backlight module emits one of the light rays sequentially through the liquid crystal display component, the first direction adjustment module and the second direction adjustment module, wherein the first grating unit and The grating period of the second grating unit is the same level as the wavelength of the light. As described above, the display device and the liquid crystal display panel of the present invention use the direction adjustment module to adjust the light-emitting directions of the display device and the liquid crystal display panel. In contrast to conventional techniques, the present invention utilizes a grating period that is at the same level as the wavelength of the incident ray to cause diffraction of the light as it passes through the grating to change the direction of deflection of the light as it exits the display device or liquid crystal display panel. In addition, if the display module in the display device displays two independent kneading surfaces, the user at different angles of the display device can also view different kneading surfaces by the control of the direction adjustment module. 1353468 [Embodiment] Hereinafter, a display device and a liquid crystal display panel according to a preferred embodiment of the present invention will be described with reference to the related drawings. As shown in FIG. 2A and FIG. 2B , the display device 2 includes a display module 21 and a direction adjustment module 22 . The display module 21 has a light emitting surface 211 and a display mode. One of the beams emitted by the group 21 is incident on the direction adjustment module 22 via the light exit surface 211. In this embodiment, the display module 21 can be an organic electro-luminescence (OEL) display module, an inorganic electroluminescence (EL) display module, or a light emitting diode (Light Emitting Diode). LED) display module, liquid crystal display (LCD), Plasma Display Panel (PDP), Vacuum Fluorescent Display (VFD), field emission display module Field Emission Display (FED) or electrochromic display module (Electro-chromic Display). Referring to FIG. 2A and FIG. 2B , the direction adjustment module 22 of the embodiment is disposed on one side of the display module 21 adjacent to the light-emitting surface 211 . The direction adjustment module 22 has a first substrate 221, a second substrate 222, a grating unit 223, a liquid crystal unit 224, a first electrode 225, a second electrode 226, a first alignment film 227, and a Second alignment film 228. The first substrate 221 is opposite to the second substrate 222, and the first substrate 221 is coupled to the display module 21. Of course, the first substrate 221 can be disposed close to but not in contact with the light emitting surface 211 1353468 of the display module 21 or one of the display modules 21 (for example, when the display module 21 is a liquid crystal display module, A substrate 221 can be a color filter substrate of a liquid crystal display module. Of course, the position and orientation of the first substrate 221 can be adjusted according to actual needs. The grating unit 223 and the liquid crystal unit 224 of the present embodiment are disposed between the first substrate 221 and the second substrate 222, and the grating unit 223 can be combined with the first substrate 221. Of course, the grating unit 223 can also be formed with the first substrate 221 (not shown). In addition, in this embodiment, the material of the grating unit - 223 may be a south molecular material, a silica sand (si 〇 2) or any material that can be formed into a periodic structure by a semiconductor process. In FIG. 2A and FIG. 2B, the liquid crystal cell 224 is located between the first substrate 221, the second substrate 222, and the grating unit 223. The first electrode 225 and the second electrode 226 are respectively disposed on the first substrate 221 and the second substrate. The surface of the substrate 222 faces and the liquid crystal cell 224 is housed therein. In the second embodiment, the first electrode 225 is disposed adjacent to the grating unit 223, and the first electrode 225 and the grating unit 223 are combined with the first substrate 221. In addition, for the convenience of fabrication, a comprehensive first electrode 225 may be formed on the surface of the first substrate 2, and the grating unit 223 may be disposed on the first electrode 225 (not shown). In the picture). In the present embodiment, the first electrode 225 and the second electrode 226 are used to extract electricity from the liquid crystal cell 224 to cause the liquid crystal cell 224 to change in refractive index by utilizing a change in the electric field. In addition, the 'grating unit 223 can also be combined with the second substrate 222 (not shown in the figure, u + ; the liquid crystal unit 224 is located between the second substrate 222 and the 1353468 substrate 221 and the grating unit 223, The first electrode 225 and the second electrode 226 are respectively disposed on the surface of the second substrate 222 facing the first substrate 221, and the liquid crystal unit 224 is received therein. Further, the grating unit 2 is attached to the second substrate. 222, of course, the grating unit 223 can also be formed integrally with the second substrate 222. In this embodiment, the first alignment film 227 and the second alignment film 228 can be respectively disposed on the first electrode 225 and the second electrode 2: 26 Above, the first alignment film 227 may also be disposed on the grating unit 223 to provide singularity of liquid crystals in the liquid crystal cell 224 in the same direction. In the embodiment, the grating period and the display mode of the grating unit 223 The wavelength of the light emitted by the group 21 is the same level, that is, the absolute value of the difference between the logarithm of the grating period in the grating unit 223 and the logarithm of the wavelength of the light is less than 1', thereby causing the light to pass through the grating unit 223. Shoot To change the direction of deflection when the light is emitted from the display device 2. Since the refractive index of the liquid crystal cell 224 is changed by the electric field provided by the first electrode 225 and the second electrode 226, the refractive index of the liquid crystal cell 224 is adjusted. When it is equal to the refractive index of the grating unit 223, the light of the incident direction adjustment module 22 will pass straight through the direction adjustment module 22 (as shown in FIG. 2A); conversely, when the refractive index of the liquid crystal unit 224 and the refractive index of the grating unit 223 When the rates are substantially different, the light entering the direction adjustment module 22 is generated by the influence of the engraving when the emission direction adjustment module 22 is deflected (as shown in FIG. 2B). The direction of illumination of the set 2 is different from the direction of illumination of Fig. 2A, and the purpose of changing the direction of illumination is achieved by the above method. 10 1353468 In addition, the deflection angle of the above-mentioned deflected light conforms to the following equation: Θ ^sirT1 (again /Λ η) where 0 is the angle at which the light is deflected, Λ is the grating period of the grating unit 223, λ is the wavelength of the light, and η is the refractive index of the light-emitting environment. Therefore, the user can adjust the direction Adjusting the module 22 to change the angle of refraction of the light. In addition, as shown in FIG. 2A and FIG. 2B, the grating unit 223 may include a plurality of parallelogram columnar bodies, triangular columnar bodies (not shown) or any The display device 3 of the second preferred embodiment of the present invention, except for the first substrate 221 and the second in the direction adjustment module 22, is shown in FIG. 3A, FIG. 3A and FIG. 3C. A polymer material and a liquid crystal cell 224 are disposed between the two substrates 222 so that the polymer material forms the grating unit 223. The features and functions of the other components are the same as those of the first preferred embodiment, and no longer Narration. Sealing the polymer material and the liquid crystal material between the first substrate 221 and the second substrate 222 to re-use the interference light and dark stripes generated by the two UV light to cure the molecular material (as shown in FIG. 3A), so that the polymer material The grating unit 223 is solidified to form a specific direction and has periodicity due to the difference in light intensity of the light and dark stripes, and the liquid crystal molecules are excluded from the solidified grating unit 223 to form the liquid crystal unit 224 and accommodate therein, when the liquid crystal unit 224 When the refractive index of the grating unit 223 is equal to the refractive index of the grating unit 223, the light entering the direction adjusting module 22 passes straight through the direction adjusting module 22 (as shown in FIG. 3A); otherwise, 11 1353468 is the refractive index of the liquid crystal unit 224. When the refractive index of the grating unit 223 is substantially different, the light entering the direction adjusting module 22 generates a deflected light (as shown in FIG. 3C) due to the influence of the diffraction when the emission direction adjusting module 22 is emitted. In the present embodiment, the polymer material may be NOA65 produced by Norland Products Inc., and has a refractive index of 1.52. Further, the liquid crystal molecule may be E7 produced by Merck, and its refractive index nG (refractive index with respect to normal light) is 1.52, and refractive index ne (refractive index with respect to abnormal light) is 1.75. Referring to FIG. 4A, FIG. 4B and FIG. 4C, the liquid crystal display device 4 of the third preferred embodiment of the present invention further includes a first grating region 411 and a grating unit 223 of the direction adjusting module 22. The features and functions of the other components are the same as those of the first preferred embodiment except for the second grating region 412, and details are not described herein again. As shown in FIG. 4A, when the refractive index of the liquid crystal cell 224 is equal to the grating unit 223, the light entering the direction adjusting module 22 will pass straight through the direction adjusting module 22; otherwise, as shown in FIG. 4B, when the liquid crystal unit 224 is subjected to When the refractive index is changed by the influence of the electric field, the light entering the direction adjustment module 22 is deflected by the influence of the diffraction when it passes through the direction adjustment module 22, and thus the traveling direction of the light is changed. As described above, when the light passing through the first grating region 411 is adjusted in the emission direction adjustment module 22, a first direction of deflection light is generated, and when the light passing through the second grating region 412 is adjusted in the emission direction adjustment module 22 , will produce a deflected light in the second direction. Of course, the first grating region 411 and the second grating region 412 can be adjusted according to actual needs. For example, as shown in FIG. 4C, the first grating region 411 and the 123533468-grating region 412 can be alternately arranged. Let the user see the face size in a single direction. Further, as shown in FIG. 4D, the grating unit 223 of the direction adjustment module 22 may further include a third grating region 413, wherein the first optical thumb region 4, the second grating region 412, and the third grating region 413 are The columnar body of the third (four), and the light beam passing through the third grating 413 and emitting the direction adjusting (four) group 22, generates a deflected light in the third direction. In addition, if the display unit 21 corresponds to the first - grating! 411, the area of the f-grating region 412 and the third grating region 413 is not the surface, the second surface, and the third surface (for example, the first and second regions of the first halogen region) When the user in the first direction and the user in the second direction and the third direction will see different faces. When, the first grating region 411, the second optical thumb region 412, and the third grating region 413 may also be alternately arranged. In addition, when the display module 21 has pixels of different colors, the grating unit 223 in the direction adjustment module 22 can also be adjusted with the corresponding pixels. For example, when the deflection effect of the direction adjustment module 22 is - (4) 1%, and the deflection angle in the glass is 28.13 degrees (45 degrees after the glass is refracted in the air), then The grating unit 223❾ grating period of the red light book (wavelength 645 legs) shall be 91,217 legs, and the light peach unit 223 shall have a thickness of 15.14 Å; and corresponding to the green light halogen (wavelength of 55 〇nm) The grating period of the grating unit 223 shall be 777 7 〇 nm, and the thickness of the grating unit 223 shall be 12.91 μπι; further, the grating unit corresponding to the blue ray element (wavelength of 450) shall have an expiration of the optical pole 636.30 nm, and the thickness of the grating unit 223 must be i〇.57 pm. 13 1353468 wherein the main deflection angle of the above-mentioned diffracted deflected light conforms to the following equation according to Kogelnik's principle: η = sin2( π And/Xcos0jnc) where 77 is the light efficiency of the deflected light, and Qinc is the incidence of the incident light. Angle, A is the wavelength of the light, and Δη is the refractive index of the refractive index of the grating unit. Of course, when the display module 21 of the embodiment has different pixel regions (such as the first pixel region and the first In the case of the dioxad zone, the implementation of the direction adjustment module 22 can also be adjusted accordingly. Referring to FIG. 5A and FIG. 5B , a fourth preferred embodiment of the present invention provides a display device 5 including a display module 51 , a first direction adjustment module 52 , and a second direction adjustment module 53 . The first direction adjustment module 52 is disposed between the display module 51 and the second direction adjustment module 53. The display module 51 emits a light, which sequentially passes through the first direction adjustment module 52 and the second direction adjustment module 53. As shown in FIG. 5A and FIG. 5B , the first direction adjustment module 52 mainly includes a first substrate 521 , a second substrate 522 , a first grating unit 523 , a first liquid crystal unit 524 , and a first electrode ( Not shown in the middle) and a second electrode (not shown). In addition, the second direction adjusting module 53 mainly includes a third substrate 520, a fourth substrate 525, a second grating unit 526, a second liquid crystal unit 527, a third electrode (not shown), and a first Four electrodes (not shown). 14 1353468 In this embodiment, the features and functions of the first direction adjustment module 52 and the second direction adjustment module 53 are the same as those of the direction adjustment module 22 of the first preferred embodiment. No longer. In addition, in the preferred embodiment, the second substrate 522 of the first direction adjustment module 52 is combined with the third substrate 520 of the second direction adjustment module 53 . Of course, the third substrate 520 and the second substrate 522 can also be integrally formed. Furthermore, in this embodiment, the refractive index of the first liquid crystal cell 524 is changed by the influence of the electric field change provided by the first electrode (not shown) and the second electrode (not shown). The refractive index of the two liquid crystal cells 526 is changed by the influence of the electric field change provided by the third electrode (not shown) and the fourth electrode (not shown). Therefore, as shown in FIG. 5A, when the light passes through the first direction adjustment module 52 and the second direction adjustment module 53 in sequence, if the refractive index of the first liquid crystal unit 524 is equal to the first grating unit 523, When the refractive index of the two liquid crystal cells 527 is substantially different from the refractive index of the second grating unit 526, the light incident on the first direction adjusting module 52 passes straight through the first direction adjusting module 51 and enters the second direction adjusting mode. In the group 53, then, when the light is emitted from the second direction adjusting module 53, the deflecting light in the first direction is generated by the influence of the diffraction. On the contrary, as shown in FIG. 5B, when the refractive index of the first liquid crystal cell 524 is substantially unequal to the first grating unit 523, and the refractive index of the second liquid crystal cell 527 is equal to the refractive index of the second grating unit 526, the first When the light of the one direction adjusting module 52 is emitted from the first direction adjusting module 52, a deflected light in a second direction is generated by the influence of the diffraction 1353468, and the deflected light in the second direction passes directly through the second side. , to the adjustment module 53, so that the deflected light will be emitted according to the refraction angle generated by the first direction adjustment module 52. In other words, using the multiplier to control the two different faces to be displayed, not only can different angles be allowed The user sees a different face, and the face presented in this way can be full resolution. A fifth preferred embodiment of the present invention provides a liquid crystal display panel, which is disposed adjacent to a backlight module. The liquid crystal display panel includes a liquid crystal display assembly and a direction adjustment module. The liquid crystal display component is disposed between the direction adjustment module and the backlight module. The backlight module emits a light that passes through the liquid crystal display component and enters the direction adjustment module. The direction adjustment module has a grating unit and a liquid crystal unit. Wherein the grating period of the grating unit is the same as the wavelength of the light. When the refractive index of the liquid crystal cell is equal to the refractive index of the grating unit, the light passes straight through the direction adjustment module, when the refractive index of the liquid crystal cell is substantially not equal to the refractive index of the grating unit At the time of the light, the light is emitted from the direction adjustment module and is affected by the light diffraction to generate at least one direction of the deflected light. In this embodiment, the liquid crystal display device sequentially includes a lower polarizing plate, a thin film transistor substrate, a further liquid crystal cell, a color filter, a light sheet substrate, and an upper polarizing plate. The directional adjustment module and the directional adjustment module 22 of the first preferred embodiment have the same features and functions, and are not described herein again. In addition, a sixth preferred embodiment of the present invention provides a liquid crystal display panel, which is disposed adjacent to a backlight module. The liquid crystal display panel includes a liquid crystal display component, a first direction adjustment module, and a second Square 1353468 to adjust the module. The first direction adjustment module has a first grating unit and a first liquid crystal unit. The second direction adjustment module has a second grating unit and a second liquid crystal unit. The first direction adjustment module is disposed between the second direction adjustment module and the liquid crystal display assembly, and the backlight module emits one light and sequentially wears The liquid crystal display component, the first direction adjustment module and the second direction adjustment module, wherein the grating period of the first grating unit and the second grating unit is the same level as the wavelength of the light, and the refractive index of the first liquid crystal unit is equal to the first When the grating unit has a radiance, the light passes straight through the first direction adjustment module. When the refractive index of the first liquid crystal unit is substantially not equal to the refractive index of the first grating unit, the light is emitted when the first direction adjustment module is emitted. A diffracted light of a first direction is generated by the diffraction effect. When the refractive index of the second liquid crystal cell is equal to the refractive index of the second grating unit, the light passes straight through the second direction adjusting module, and when the second liquid crystal cell When the refractive index is substantially not equal to the refractive index of the second grating unit, the light is emitted by the second direction adjusting module, and is affected by the diffraction to generate a second direction. The deflection of the light. In the present embodiment, the liquid crystal display assembly has the same features and functions as those of the liquid crystal display assembly of the fifth embodiment, and details are not described herein again. The features and functions of the first direction adjustment module and the second direction adjustment module are the same as those of the direction adjustment module 22 of the first preferred embodiment, and are not described herein again. The display frequency of the image frame provided by the display module (liquid crystal display unit) of the present invention can be adjusted according to the change of the grating unit in the direction adjustment module. In summary, the display device and the liquid crystal display panel of the present invention utilize the ..... _. 17___________ ____________________________________________ direction adjustment module to control the display θ _ ^ , 'clothing and liquid day and day display The orientation of the panel. Compared with the prior art, the fun uses the direction of the two-square period and the wavelength of the incident light is: 旲, and the middle grating produces a diffraction to change the light emission ^-t, and to make the light pass through the grating. In the direction of the fold, if the display shows (4) the gentry "in the heart panel", the lower 4 sets the display is not simulated, and the Yan Qian Gu Tu profile, the user can also watch the independent angle of the direction adjustment module. To the different sides. The different sides of the clothes are different. The above is only an example, ^ ^ ^ ^ ^ ^ ^ ^ ^ The spirit of the invention and the scope of the invention, and the survivors. Any undisengaged should be included Included in the scope of patent application: effect modification or change, all [simplified description of the drawing] = a schematic diagram of one of the conventional liquid crystal display devices; "Fig. 2B is the first preferred life according to the present invention - Schematic diagram of the group structure; $ "Sword (4) Figure ^, Figure 3B and Figure 3 (: is a schematic diagram of one of the groups according to the second preferred embodiment of the present invention; A schematic diagram of a group structure of a liquid-free device according to a third preferred embodiment; and A schematic diagram of a group of liquid crystal display devices in the preferred embodiment. Component symbol description: 1: Liquid crystal display device 1353468 10: backlight module 11. Liquid crystal shouting panel 111: lower polarizing plate 112. Thin film transistor substrate 113: liquid crystal cell 114: color filter, light substrate 115: upper polarizing plate 2: display device 21: display module 211: light-emitting surface 22: direction adjustment module 221: first substrate 222: second substrate 223: grating unit 224: liquid crystal cell 225: first electrode 226: second electrode 227: first alignment film 228: second alignment film 3: display device 4: liquid crystal display device 411: first grating region 412: second grating region 413: Three grating area 1353468 5 : display device 51 : display module. 52 : first direction adjustment module 53 : second direction adjustment module 520 : third substrate 521 : first substrate 522 : second substrate 523 : first grating Unit 524: first liquid crystal unit 525: fourth substrate 526: second grating unit 527: second liquid crystal unit