— 正替換頁 竭更} 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種液晶顯示裝置。 【先前技射宁】 液f顯稀置根據其所彻絲之糊，可分為穿透式液 反射式液晶顯示農置。穿透式液晶顯示裝置通常 ίϋ板設置—背光模組以提供照明，由於背光模組之 =導致穿透式液晶顯示裝置之耗能較大。而反射式 ，曰曰顯不裝置則_環境光來提供照明，因此其耗能較小，但 環境光較弱時會變差，因此其使用範圍有限。 -2參it圖，係先前技術中—種穿透式液晶顯示裝置之 不思圖。該穿透式液晶顯示裝置j包括一上基板11〇，一下基 板130及位於—基板之間的液晶層12〇。-上偏光片1〇〇盘一 下偏光片140分別位於上基板11〇與下基板13〇之上下二/側， -由光源152與導光板丄5!構成之背光模組】㈣立 140下方以提供照明。 Φ 晶顯示裝置1之工作原理為：背光模組150發 =先^下偏光片14〇變為線偏振光；當液 時，其提供適宜之光程差使該線^ 不同之偏纖猶絲射人至上偏光片 片而形_矛之偏振態，一特定比例之光線透射出上偏光 =於使用月光模I且15〇 ’穿透式液晶顯示裝置1之應用範 :但由於背光模組⑽於使用狀態下必須 因 耗電較咼。 22Q。-±偏光片腦位於上基板21G上方，一四分 -波片260位於設置在下基板23〇下方，一反射板27〇位於四 a ^更)正#换買 分之一波片260之下方。 一該反射式液晶顯示裝置2之工作原理為：環境光射入至上 偏光片200後變為線偏振光；當液晶層22〇在驅動控制下處於 ϊϋίΐ向時，其提供適宜之光程差使該線偏振光於通過液晶 4後’支為不同之偏振態；然後光線射入至四分之一波片260， 並被反射》27〇反射*第二次通過四分之-波片亂隨後第 二次通過液晶層22G並變為不同之偏振態；紐光線射入至上 =，對應其所t之偏振態’—特^比例之光線透射出 上偏光片2GG而形成顯示。其中四分之一波片編之設置是為 提供適宜之光程差。 由於$需要使_細組，反射式液晶顯示裝置2之耗電 較小，但其於較暗環境中難以應用，因此其應用範圍較窄。 ，此J有技術液晶顯示裝置或採用穿透式結構而耗能較 大，或採用反射式裝置而應用範圍較窄。 r议Ϊ鑑if ’提供—種晝面精細之微鏡投影儀實為必要。 L發明内容】 種工置題在於提供—種具嫩及反射二 其且技術转為：—觀晶顯示裝置， f ==狀態，其包括：—液晶面板，該液 :曰面板包括-第-偏先片及液晶層；一轉換裝置，該轉 i，該”裝置上之—穿透薄膜及一反射薄 膜，献射細包括-四分之-波片及一反. 組；-_器’該憤測器用以確定環境光線之強弱以決定該液 時，該驅練置雌使料透薄麻_背絲 ^^ 板之間；當該液晶顯示裝置在反射工作狀態該& = 動使該反射薄麟近紐晶面板以反辦^挪動虞置啟 與先前技術相比，本發明液晶顯示裝置之翻占在於其具有 =透及反^二種工作狀態，其可於陰暗環境中應用，而具有較 廣之應用細；而在魏細亮時，其可_背光模組而耗電 較少。 【實施方式】 立請參考第三圖，係本發明液晶顯示裝置之穿透工作狀態示 。該液晶顯示裝置3包括一液晶面板3〇，一轉換裝置(未 ‘示）’ 一背光模組350及一偵測器38〇。該液晶面板3〇包括 ^基板310 ’ 一下基板330，位於二基板之間之液晶層32〇 及设置在上基板310上之一第一偏光片3〇〇。該轉換裝置包括 一由，動電機391及傳動帶392構成之驅動裝置390，一用作 穿透薄膜之第二偏光片340, 一由四分之一波片360及反射片 =0構成之反射薄膜(未標示），該穿透薄膜340與該反射薄膜 設置於傳動帶392上，二驅動電機391可驅動傳動帶392移 動。該背光模組350包括一光源352及一導光板351。該背光 模組350被收容於傳動帶392形成之空間，其可沿自下基板 330向上基板310之方向射出光線。 當偵測器380偵測環境光為較弱時，啟動背光模組35〇以 提供照明，並啟動液晶顯示裴置3為穿透工作狀態。此時，驅 動電機391轉動並帶動傳動帶392移動使得穿透薄膜340位於 導光板351與下基板330之間。光源352發出的光線經導光板 351之後射出，依次經過穿透薄膜即第二偏光片34〇，下基板 330，液晶層320，上基板310及第一偏光片3〇〇，以習知之穿 透式液晶顯示裝置之工作方式實現顯示。 立請參考第四圖’係本發明液晶顯示裝置之反射工作狀態示 思圖。當偵測器380偵測環境光為較強時，關閉背光模組35〇 以降低耗電，並啟動液晶顯示裝置3為反射工作狀態。此時， 驅動電機391轉動並帶動傳動帶392移動使得反射薄膜位於下 基板340之下方。環境光依次經過第一偏光片3〇〇，上基板 310，液晶層320，下基板330及四分之一波片36〇後到達反 7 / Γ'-.νΎ_ ..+Τ W................ 射片370，被反射片370反射而第二次通過上述元件後射出-， 以習知之反射式液晶顯示裝置之工作方式實現顯示。- The replacement page is exhausted} 9. Description of the Invention: [Technical Field of the Invention] The present invention relates to a liquid crystal display device. [Previous technology shot Ning] Liquid f is thinly placed according to its paste, which can be divided into penetrating liquid reflective liquid crystal display. The transmissive liquid crystal display device usually has a backlight module to provide illumination, and the penetrating liquid crystal display device consumes a large amount of energy due to the backlight module. Reflective, illuminating, or ambient light provides illumination, so its energy consumption is small, but it will be worse when the ambient light is weak, so its use is limited. -2 refers to the figure, which is a reflection of the penetrating liquid crystal display device in the prior art. The transmissive liquid crystal display device j includes an upper substrate 11A, a lower substrate 130, and a liquid crystal layer 12B located between the substrates. - Upper polarizer 1 一下 The polarizer 140 is respectively located on the upper substrate 11 〇 and the lower substrate 13 〇 above and below the side, - a backlight module composed of the light source 152 and the light guide plate 丄 5! Provide lighting. The working principle of the Φ crystal display device 1 is: the backlight module 150 emits a first-down polarizer 14 turns into linearly polarized light; when it is liquid, it provides a suitable optical path difference to make the line different from the partial fibrillation The person is supremely polarized and shaped like a spear polarization state, a specific proportion of light is transmitted through the upper polarized light = in the application of the moonlight mode I and 15 〇 'transmissive liquid crystal display device 1: but because the backlight module (10) In the use state, it must be because of the power consumption. 22Q. The ± polarizer is located above the upper substrate 21G, and a quarter-wave plate 260 is disposed below the lower substrate 23, and a reflector 27 is located below the four-wavelength 260. The working principle of the reflective liquid crystal display device 2 is that the ambient light enters the upper polarizer 200 and becomes linearly polarized light; when the liquid crystal layer 22 is under the driving control, it provides a suitable optical path difference. The linearly polarized light is branched into different polarization states after passing through the liquid crystal 4; then the light is incident on the quarter-wave plate 260, and is reflected by the "27" reflection * the second pass through the quarter-wave plate chaos followed by The liquid crystal layer 22G is passed twice and becomes a different polarization state; the neon light is incident on the upper=, and the light corresponding to the polarization state of the t is transmitted through the upper polarizer 2GG to form a display. One quarter of the wave plate is set to provide a suitable optical path difference. Since the reflective liquid crystal display device 2 consumes less power, it is difficult to apply in a dark environment, and thus its application range is narrow. This J technology liquid crystal display device uses a penetrating structure and consumes a large amount of energy, or uses a reflective device and has a narrow application range. It is necessary to provide a micromirror projector with a fine surface. L invention content] The problem of seeding is to provide a kind of tenderness and reflection and the technology is changed to: - crystal display device, f == state, which includes: - liquid crystal panel, the liquid: 曰 panel includes - the first a first piece and a liquid crystal layer; a conversion device, the transfer i, the "transparent film and a reflective film on the device, the thin film includes - a quarter-wave plate and a reverse. Group; -_器' When the anger detector determines the strength of the ambient light to determine the liquid, the refurbishment is placed between the thinner and the backing plate; when the liquid crystal display device is in the reflective working state, the & Compared with the prior art, the liquid crystal display device of the present invention has the following functions: the transparent operation and the reverse operation, which can be applied in a dark environment. In the case of Wei Xiliang, it can consume less power than the backlight module. [Embodiment] Referring to the third figure, the penetrating operation state of the liquid crystal display device of the present invention is shown. The liquid crystal display device 3 includes a liquid crystal panel 3〇, a conversion device (not shown) A backlight module 350 and a detector 38. The liquid crystal panel 3 includes a substrate 310', a lower substrate 330, a liquid crystal layer 32 between the two substrates, and a first polarizer disposed on the upper substrate 310. 3. The conversion device comprises a driving device 390 composed of a moving motor 391 and a transmission belt 392, a second polarizer 340 for penetrating the film, a quarter wave plate 360 and a reflection sheet=0. A reflective film (not shown) is formed. The transparent film 340 and the reflective film are disposed on the driving belt 392. The driving motor 391 can drive the driving belt 392. The backlight module 350 includes a light source 352 and a light guide plate 351. The backlight module 350 is received in a space formed by the driving belt 392, and can emit light along the direction from the lower substrate 330 to the upper substrate 310. When the detector 380 detects that the ambient light is weak, the backlight module 35 is activated to provide Illuminating and starting the liquid crystal display device 3 is a penetrating working state. At this time, the driving motor 391 rotates and drives the driving belt 392 to move so that the penetrating film 340 is located between the light guiding plate 351 and the lower substrate 330. The light emitted from the light source 352 is guided. Light After 351, the film is sequentially passed through the through film, that is, the second polarizer 34, the lower substrate 330, the liquid crystal layer 320, the upper substrate 310, and the first polarizer 3〇〇, and the working mode of the transparent liquid crystal display device is realized. Please refer to the fourth figure, which is a reflection working state diagram of the liquid crystal display device of the present invention. When the detector 380 detects that the ambient light is strong, the backlight module 35 is turned off to reduce power consumption and start up. The liquid crystal display device 3 is in a reflective operation state. At this time, the driving motor 391 rotates and drives the driving belt 392 to move so that the reflective film is located below the lower substrate 340. The ambient light sequentially passes through the first polarizer 3, the upper substrate 310, and the liquid crystal layer 320. The lower substrate 330 and the quarter-wave plate 36 are then inverted to reach 7 / Γ'-.νΎ_ ..+Τ W................ The shot 370 is reflected The sheet 370 is reflected and ejected a second time through the above-mentioned elements, and is displayed in a manner in which the conventional reflective liquid crystal display device operates.
At由於本發明液晶顯示裝置具有穿透及反射二種工作狀 態，其於陰暗環境中可採用穿透工作狀態完成顯示，因而具有 ^廣之應用範圍；而在環境光明亮時，其可採用反射工作狀態 元成顯示’此時可關閉背光模組’因而耗電較少。因此其以可 轉換^作狀態之方式兼得二者之優點，達成較低耗電與較廣之 應用範圍。 本發明液晶顯示裝置之驅動電機可採用步進馬達。反射薄 膜與穿透薄膜可直接與驅動電機連接而構成傳送帶。 / 綜上所述，本發明符合發明專利要件，爰依法提出專利 請。惟’以上所述者僅為本發明之較佳實施方式，舉凡熟弗本 案技藝之人士，在援依本案發明精神所作之細修 ， 皆應包含於以下之申請專利範圍内。 < 【圖式簡單說明】 第一圖係先前技術穿透式液晶顯示裝置示意圖。 第一圖係先如技術反射式液晶顯示裝置示意圖。 工作狀態 苐二圖及第四圖分別係本發明液晶顯示裝置於穿透 及反射工作狀態之示意圖。 【主要元件符號說明】 液晶顯不裝置 3 液晶面板 第一偏光片 300 上基板 液晶層 320 下基板 穿透薄膜 340 背光模組 導光板 351 光源 四分之一波片 360 反射層 偵測器 380 驅動裝置 驅動電機 391 傳動帶 30 310 330 350 352 370 390 392At present, the liquid crystal display device of the present invention has two working states of penetration and reflection, and can be displayed in a dark environment in a transparent working state, thereby having a wide application range; and when the ambient light is bright, it can be reflected. The working status element displays 'the backlight module can be turned off at this time' and thus consumes less power. Therefore, it has the advantages of both in a convertible state, achieving a lower power consumption and a wider range of applications. The driving motor of the liquid crystal display device of the present invention can employ a stepping motor. The reflective film and the penetrating film can be directly connected to the drive motor to form a conveyor belt. / In summary, the present invention complies with the requirements of the invention patent, and the patent is filed according to law. However, the above description is only a preferred embodiment of the present invention, and those skilled in the art of the present invention should be included in the scope of the following patent application. < BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a schematic diagram of a prior art transmissive liquid crystal display device. The first figure is a schematic diagram of a prior art reflective liquid crystal display device. Working state The second and fourth figures are schematic views of the liquid crystal display device of the present invention in the working state of penetration and reflection, respectively. [Main component symbol description] LCD display device 3 Liquid crystal panel first polarizer 300 Upper substrate liquid crystal layer 320 Lower substrate penetrating film 340 Backlight module light guide plate 351 Light source quarter wave plate 360 Reflective layer detector 380 drive Device drive motor 391 drive belt 30 310 330 350 352 370 390 392