099年09月21日梭正替換頁 1339290 · 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明係關於液晶顯示裝置。 【先前技術】 [0002] 液晶顯示裝置因具有低輻射性、體積輕薄短小及耗電低 等特點，故於使用上日漸廣泛，且隨著相關技術之成熟 及創新，其種類亦日益繁多。 [0003] 根據液晶顯示裝置所利用光源之不同，可分為穿透式液 晶顯示裝置與反射式液晶顯示裝置。穿透式液晶顯示裝 置，如1 986年4月10日公開之中國大陸專利第851 0861 9 、 .. *·. 號所示，係於液晶顯示面板背面释置一.背光源以實現圖 像顯示，惟，背光源之耗能約佔.整個穿透式液晶顯示裝 置耗能的一半，故穿透式液晶顯示裝置之耗能較大。 [0004] 反射式液晶顯示裝置，如1991年7月24日公開之中國大陸 專利申請第901 09958. 9號所示，能較好解決穿透式液晶 顯示裝置耗能大之問題，惟，於光線微弱之環境下很難 實現圖像顯示。 [0005] 為解決兩者存在之缺陷，業界近來研究之焦點均集中於 半穿透半反射式液晶顯示裝置，請參考2003年7月23曰公 開之中國大陸專利申請第021 60037. 6號。 [0006] 然，液晶顯示面板本身不能發光，需利用一光源系統， 如背光模組（Backlight Module)，為其提供一面光源 ，且光源所發射之光束進入液晶顯示面板之前必須經過 一偏光板或偏光片，成為單極偏光，液晶才能調節光通 093141671 表單編號A0101 第3頁/共15頁 0993340080-0 [0007]1339290 [0008] [0009] 093141671 I 095年03月21日孩正替 量’從而顯示屏幕畫面。 請參閱第一圖，係2〇〇2年9月10日公告之美國專利第 6 ’ 4 4 8，9 5 5號所揭示之一液晶顯示裝置2 〇剖面示意圖。 該液晶顯示裝置2 0包括一液晶面板21及一背光模組2 2。 5玄液晶面板21包括一第一基板211、一液晶層21 2和一第 二基板213。該背光模組22包括兩光源221、分別與二光 源221相對應之兩光源罩222、分別與光源221相對應之 兩導光板224 ' —反射板223、一擴散板225、一增亮片 (Brightness Enhance Film，BEF)226、一反射偏光 板（Double Brightness Enhance Film， DBEF)227September 21, 099 Shuttle Replacement Page 1339290 · VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a liquid crystal display device. [Prior Art] [0002] Liquid crystal display devices are widely used due to their low radiation, small size, short size, and low power consumption. With the maturity and innovation of related technologies, the types of liquid crystal display devices are becoming more and more diverse. [0003] According to the light source used in the liquid crystal display device, it can be classified into a transmissive liquid crystal display device and a reflective liquid crystal display device. A transmissive liquid crystal display device, as shown in the Chinese Patent No. 851 0861 9 , . . . . . . , published on April 10, 1986, is attached to the back of the liquid crystal display panel to provide a backlight to realize the image. Display, however, the energy consumption of the backlight accounts for about half of the energy consumption of the entire transmissive liquid crystal display device, so the penetrating liquid crystal display device consumes a large amount of energy. [0004] A reflective liquid crystal display device, as shown in the Chinese Patent Application No. 901 09958. 9 published on July 24, 1991, can better solve the problem of large energy consumption of the transmissive liquid crystal display device, It is difficult to achieve image display in a weak environment. [0005] In order to solve the defects of both, the recent research focus of the industry is on the transflective liquid crystal display device, please refer to the Chinese patent application No. 021 60037. 6 published on July 23, 2003. [0006] However, the liquid crystal display panel itself cannot emit light, and a light source system, such as a backlight module, is required to provide a light source, and the light beam emitted by the light source must pass through a polarizing plate or before entering the liquid crystal display panel. Polarizer, become unipolar polarized light, liquid crystal can adjust light pass 093141671 Form No. A0101 Page 3 / Total 15 Page 0993340080-0 [0007] 1339290 [0008] [0009] 093141671 I March 21, 00, the child is replacing Thereby the screen is displayed. Referring to the first drawing, a schematic cross-sectional view of a liquid crystal display device 2 disclosed in U.S. Patent No. 6 4,8,5,5, issued on Sep. 10, 2002. The liquid crystal display device 20 includes a liquid crystal panel 21 and a backlight module 22. The 5th liquid crystal panel 21 includes a first substrate 211, a liquid crystal layer 21 2 and a second substrate 213. The backlight module 22 includes two light sources 221, two light source covers 222 corresponding to the two light sources 221, two light guide plates 224' corresponding to the light source 221, a reflection plate 223, a diffusion plate 225, and a brightness enhancement sheet (Brightness). Enhance Film, BEF) 226, Double Brightness Enhance Film (DBEF) 227
及一覆蓋層228。 H .篆· · 請一並參閱第二圖，為該液^^%置養0^背光模組22 工作原理示意圖》液晶顯示裝置20工作時，光源221發出 一可視為由兩極化態相互垂直之P偏光與S偏光組成之光 束’該光束經由導光板224、擴散板225及增亮片226後 到達反射偏光板227，其中該P偏光之極化態垂直於反射 偏光板227之極化態，該S偏光之極化態平行於反射偏光 板227之極化態，所以僅S偏光能通過反射偏光板227，而 P偏光被反射偏光板227反射，該反射之P偏光經增亮片 226 '擴散板225、導光板224及反射板223後重新轉換成 強度相對較弱之P偏光與S偏光，其中S偏光部份將通過反 射徧光板227，P偏光被反射。 惟，光源2 21所發出之光束經過多個介面才能進入液晶面 板21，此過程中光能損耗較大，且該反射之P偏光重新轉 換為P偏光與S偏光時經過多個介面，其能量將減弱，反 表單編號A0丨01 第4頁/共15頁 0993340080-0 1339290 099年09月21日梭=正替换頁 射光束之重新利用率較低。因此，對於液晶顯示裝置來 說，不可自發光、對光的不充分利用所造成之能源浪費 為一個發展瓶頸。 [0010] 有鑑於此，提供一種可自發光、光利用率高、節約能源 之液晶顯示裝置實為必需。 【發明内容】 [0011] 本發明要解決之技術問題係提供一種直接提供單極偏光 光源、光利用率高、節約能源之液晶顯示裝置。 [0012] 本發明進一步解決之技術問題係提供一液晶顯示裝置， 其具有一能提供均勻面光源之單極偏光光源。 [0013] 本發明再進一步解決之技術問題係提供一液晶顯示裝置 ，其能及時分散其自帶光源工作過程中產生之熱量。 [0014] 本發明解決技術問題之技術方案係提供一種液晶顯示裝 置，其包括一液晶顯示面板及與其配合的一單極偏光光 源，單極偏光光源所發射之光束直接進入液晶顯示面板 ，其中該單極偏光光源包括一陰極，一與陰極相對之透 明陽極，其與陰極隔開一定距離從而形成一真空内部空 間，一營光層，其形成於陽極靠近陰極一側之表面，一 偏光轉換膜（P-S Converter)，其形成於陽極背離陰極 的一側，及均勻分佈於陰極表面之複數電子發射體，當 在該陰極與該透明陽極之間施加一個電壓時，電子發射 體在電場力作用下發射電子，該電子激發該螢光層從而 發出可見光，該可見光穿過該透明陽極再經過該偏光轉 換膜直接轉換為單極偏光，該單極偏光進入該液晶顯示 093141671 表單編號A0101 第5頁/共15頁 0993340080-0 1339290 [0015] [0016] [0017]And a cover layer 228. H.篆· · Please refer to the second figure for the liquid ^^% to maintain the 0^ backlight module 22 working principle diagram" When the liquid crystal display device 20 is working, the light source 221 emits a view that is perpendicular to the two polarization states The light beam composed of the P-polarized light and the S-polarized light passes through the light guide plate 224, the diffusion plate 225, and the brightness enhancement plate 226 to reach the reflective polarizing plate 227, wherein the polarization state of the P-polarized light is perpendicular to the polarization state of the reflective polarizing plate 227. The polarization state of the S-polarized light is parallel to the polarization state of the reflective polarizing plate 227, so only the S-polarized light can pass through the reflective polarizing plate 227, and the P-polarized light is reflected by the reflective polarizing plate 227, and the reflected P-polarized light is diffused through the brightness enhancing sheet 226' The plate 225, the light guide plate 224 and the reflection plate 223 are then converted into P-polarized light and S-polarized light with relatively weak intensity, wherein the S-polarized portion will pass through the reflective light-passing plate 227, and the P-polarized light is reflected. However, the light beam emitted by the light source 21 passes through the plurality of interfaces to enter the liquid crystal panel 21. In this process, the light energy loss is large, and the reflected P-polarized light is converted into P-polarized light and S-polarized light through multiple interfaces, and the energy thereof Will be weakened, anti-form number A0丨01 Page 4 / Total 15 pages 0993340080-0 1339290 September 21, 2009 Shuttle = positive replacement page beam is less reusable. Therefore, for a liquid crystal display device, energy waste caused by insufficient self-luminescence and insufficient use of light is a development bottleneck. [0010] In view of the above, it is necessary to provide a liquid crystal display device which is self-luminous, has high light utilization efficiency, and saves energy. SUMMARY OF THE INVENTION [0011] The technical problem to be solved by the present invention is to provide a liquid crystal display device that directly supplies a monopolar polarized light source, has high light utilization efficiency, and saves energy. [0012] A further technical problem to be solved by the present invention is to provide a liquid crystal display device having a monopolar polarized light source capable of providing a uniform surface light source. [0013] A further technical problem to be solved by the present invention is to provide a liquid crystal display device capable of dispersing heat generated during the operation of the self-contained light source in time. [0014] The technical solution of the present invention is to provide a liquid crystal display device including a liquid crystal display panel and a monopolar polarized light source coupled thereto. The light beam emitted by the monopolar polarized light source directly enters the liquid crystal display panel. The unipolar polarized light source comprises a cathode, a transparent anode opposite to the cathode, spaced apart from the cathode to form a vacuum internal space, and a camping light layer formed on the surface of the anode near the cathode side, a polarization conversion film (PS Converter) formed on a side of the anode facing away from the cathode, and a plurality of electron emitters uniformly distributed on the surface of the cathode. When a voltage is applied between the cathode and the transparent anode, the electron emitter is subjected to an electric field force Emitting electrons, the electrons excite the phosphor layer to emit visible light, and the visible light passes through the transparent anode and is directly converted into monopolar polarized light through the polarizing conversion film, and the monopolar polarized light enters the liquid crystal display 093141671 Form No. A0101 Page 5 / A total of 15 pages 0993340080-0 1339290 [0016] [0017]
[0018] [0019] [0020] [0021] 093141671[0019] [0020] [0021] 093141671
I J—' .1-·— ·—I — : J ΛI I I II J—' .1-·— ·—I — : J ΛI I I I
I u”千U3为匕ip孩·止胥佚良I 面板。 進一步地，該單極偏光光源還包括一形成於偏光轉換膜 靠近陽極一側表面之擴散膜。 更進一步地，該單極偏光光源還包括一形成於偏光轉換 膜遠離陽極一側表面之反射膜，反射膜表面形成有一散 熱片。 相較於先前技術，本發明液晶顯示裝置具有一單極偏光 光源，能自發光且直接將光束轉換成單極偏光進入液晶 顯示面板，該光束轉換成單極偏光進入液晶顯示面板之 前經過之介面明顯減少，光释損綠明光利用率 高、節約能源。 進一步地，該單極偏光光源還包括一擴散膜，有利於面 光源亮度更均勻。 更進一步地，該單極偏光光源還包括有一散熱片，能將 顯示裝置工作過程中光源產生之熱量及時分散。 【實施方式】 下面將結合附圖對本發明作詳細說明。 請參閱第三圖，本發明第一實施例所提供之液晶顯示裝 置包括一液晶顯示面板（圖未示）及一單極偏光光源30 ，該光源30包括一陰極31、一透明陽極34、一營光層33 、一偏光轉換膜36及複數電子發射體32。所述陰極31由 導電材料組成，優選為ΙΤΟ(銦錫氧化物）導電薄膜組成。 該陰極31呈陣列均勻分佈於一透明基板39表面，該透明 基板39可以由玻璃組成。複數電子發射體32均勻分佈於 表單編號Α0101 第6頁/共15頁 0993340080-0 1339290 099年09月21日按正替换頁 陰極表面’該複數電子發射體3 2可以為金屬尖端、奈米 破管等，優選為奈米碳管。所述透明陽極34與陰極相對 ，其與陰極31隔開一定距離從而形成一真空内部空間， 其可由ΙΤ0(銦錫氧化物）導電薄膜組成。螢光層33形成於 陽極34靠近陰極一側之表面。於陽極34背離陰極31的一 側依次設置一擴散膜35、一偏光轉換膜36、一反射膜37 及一散熱片38。於陰極31與陽極34之間施加電壓，在電 場力作用下，電子發射體32發射電子激發螢光層33發出 可見光。該可見光透過擴散膜35進一步得到亮度均勻之 光線，光線透過偏光轉換膜36得到單極偏光，該單極偏 光光束經過反射膜37反射，透明基板39進入液晶顯示面 板。該顯示面板安裝於基板39—側β.另外，散熱片38具 有複數散熱鰭片，其能將該單極偏光光源3〇工作時產生 之熱量及時分散。 [0022] 請參閱第四圖’本發明第二實施例所提供之液晶顯示裝 置包括一液晶顯示面板（圖未示）及一單極偏光光源4〇 ，該光源40包括一陰極41、一透明陽極44、一榮光層43 、一偏光轉換膜46及複數電子發射體42 ^所述陰極41由 導電材料組成’呈陣列均勻分佈於一基板4 7表面，複數 電子發射體42均勻分佈於陰極表面，該複數電子發射體 42可以為金屬尖端、奈米碳管等，優選為奈米碳管。所 述陽極44與陰極相對，其與陰極41隔開一定距離從而形 成一真空内部空間，其由透明導電材料組成，例如由 ιτο(銦錫氧化物）導電薄膜組成。螢光層43形成於陽極 44靠近陰極一側之表面。陽極44背離陰極“ 一側表面上 093141671 表單編號Α0101 第7頁/共15頁 0993340080-0 1339290 還形成有-具有鉅齒形表面之擴散犋45，該擴散膜仏能 使光束分散，使光源亮度更均句。偏光轉換賴即形成 於該擴韻45表‘複數側壁48將該單極偏光光源衡 裝。施加電壓給陰極41與陽極44，在電場力作用下電子 發射體42發射電子激發螢光層43發出可見光。該可見光 透過擴散膜45進-步得到亮度㈣之光線，光線透過偏 光轉換膜46得到單極偏光，該單極偏光直接進入顯示面 板。孩實施例中液晶顯示面板安裝於單極偏光光源4〇之 偏光轉換膜46—側。 [0023] 請參閱第五圖，本發明第三實施例所提供之液晶顯示裝 置包括一液晶顯示面板（圖未.示）及一單極偏光光源5〇 ·. · '.?··. . ，該光源5〇包括一陰極5丨、士#一螢光層Μ 、一偏光轉換膜55及複數電子發射體52。其中陰極51為 一導電材料薄膜，形成於基板56表面，電子發射體52均 勻为佈於該陰極51表面。所述陽極54與陰極相對，其與 陰極51隔開一定距離從而形成一真空内部空間，其由透 明導電材料組成，例如由I TO(銦錫氧化物）導電薄膜組成 。螢光層53形成於陽極54靠近陰極一側之表面。陽極54 背離陰極51—側表面上形成偏光轉換膜55。複數側壁57 將該單極偏光光源5 〇封裝。施加電壓給陰極5丨與陽極5 4 ’在電場力作用下電子發射體52發射電子激發螢光層53 發出可見光。該可見光透過偏光轉換膜55得到單極偏光 ，该單極偏光直接進入顯示面板。該實施例中液晶顯示 面板安裝於單極偏光光源50之偏光轉換膜55—側。 [0024] 「093年ϋ9月2i日按正頁j 本發明所涉及之液晶顯示面板包括反射型、透射型及半 093141671 表單編號Α0101 第8頁/共15頁 0993340080-0 丄339290. 099年09月21日接正替換頁 [0025] [0026] [0027] [0028] [0029] [0030] [0031] [0032] [0033] 093141671 反射半透射型’其不需要設置偏光片。 較於先前技術，本發明液晶顯示裝置具有—單極偏光光 源’能自發光且直接將光束轉換成單極偏光進入液晶顯 示面板’該光束轉換成單極偏光進入液晶顯示面板之前 經過之介面明顯減少’光能損耗明顯降低，光利用率高 、節約能源。 進-步地，該單極偏光総還包括—擴制，有利於面 光源光線更均勻。 更進一步地，該單極偏光光源還包括有一散熱片，能將 顯示裝置工作過程中光源產生之熱量及時分散。 综上所述，本發明確已符合發明專利之要件，遂依法提 出專利申請。惟，以上所述者僅為本發明之較佳實施例 ’自不能以此限制本案之申請專利範圍。舉凡熟悉本案 技藝之人士援依本發明之精神所作之等效修飾或變化， 皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 第一圖係先前技術液晶顯示裝置結構示意圖； 第二圖係先前技術液晶顯示裝置工作原理示意圖； 第三圖係本發明液晶顯示裝置中第一種單極偏光光源示 意圖； 第四圖係本發明液晶顯示裝置中第二種單極偏光光源示 意圓； 第五圖係本發明液晶顯示裝置中第三種單極偏光光源示 表單編號A010] 第9頁/共15頁 0993340080-0 1339290 I Λ Λ 严· > I Λ ^ Jt _· · ^-v —^― 月乙丄口 只 [0034] 意圖。 【主要元件符號說明】 單極偏光光源：30, 40, 50 [0035] 陰極：31，41，51 [0036] 電子發射體：32, 42, 52 [0037] 螢光層：33, 43, 53 [0038] 陽極層：34, 44, 54 [0039] 擴散膜：35, 45 [0040] 偏光轉換膜：36, 46, 55 [0041] 身十 · 3 7 —：------- [0042] 散熱片：38 [0043] 基板：39, 47, 56 [0044] 側壁：48, 57 093141671 表單編號A0101 第10頁/共15頁 0993340080-0Further, the unipolar polarized light source further includes a diffusion film formed on a surface of the polarizing conversion film near the anode side. Further, the unipolar polarized light is further provided. The light source further comprises a reflective film formed on a surface of the polarizing conversion film away from the anode, and a heat sink is formed on the surface of the reflective film. Compared with the prior art, the liquid crystal display device of the invention has a monopolar polarized light source, which can self-illuminate and directly The light beam is converted into unipolar polarized light and enters the liquid crystal display panel, and the interface through which the unipolar polarized light is converted into the unipolar polarized light before entering the liquid crystal display panel is significantly reduced, and the utilization of the light absorbing green light is high, and energy is saved. Further, the unipolar polarized light source is further Including a diffusion film, the surface light source is more uniform in brightness. Further, the monopolar polarized light source further includes a heat sink, which can disperse the heat generated by the light source during the operation of the display device in time. The present invention will be described in detail. Referring to the third figure, a liquid crystal display device according to a first embodiment of the present invention is provided. The invention comprises a liquid crystal display panel (not shown) and a monopolar polarized light source 30. The light source 30 comprises a cathode 31, a transparent anode 34, a camping layer 33, a polarization conversion film 36 and a plurality of electron emitters 32. The cathode 31 is composed of a conductive material, preferably a tantalum (indium tin oxide) conductive film. The cathode 31 is uniformly distributed in an array on the surface of a transparent substrate 39, and the transparent substrate 39 may be composed of glass. The plurality of electron emitters 32 are uniform. Distributed in Form No. Α0101 Page 6 / Total 15 Page 0993340080-0 1339290 September 21, 2009 Pressing Positive Replacement Page Cathode Surface 'The complex electron emitter 3 2 can be a metal tip, a nanotube, etc., preferably Nye The transparent anode 34 is opposite to the cathode, and is spaced apart from the cathode 31 to form a vacuum inner space, which may be composed of a ΙΤ0 (indium tin oxide) conductive film. The phosphor layer 33 is formed on the anode 34. a surface of the cathode side. A diffusion film 35, a polarization conversion film 36, a reflection film 37 and a heat sink 38 are disposed on the side of the anode 34 away from the cathode 31. Between the cathode 31 and the anode 34 When a voltage is applied, the electron emitter 32 emits an electron-excited phosphor layer 33 to emit visible light under the action of an electric field force. The visible light passes through the diffusion film 35 to further obtain a uniform brightness light, and the light passes through the polarization conversion film 36 to obtain a monopolar polarization. The polarized light beam is reflected by the reflective film 37, and the transparent substrate 39 enters the liquid crystal display panel. The display panel is mounted on the substrate 39-side β. In addition, the heat sink 38 has a plurality of heat-dissipating fins, which can operate the monopolar polarized light source 3〇 The generated heat is dispersed in time. [0022] Please refer to the fourth figure, the liquid crystal display device provided by the second embodiment of the present invention includes a liquid crystal display panel (not shown) and a monopolar polarized light source 4〇, the light source 40 includes a cathode 41, a transparent anode 44, a glare layer 43, a polarization conversion film 46, and a plurality of electron emitters 42. The cathode 41 is composed of a conductive material and is uniformly distributed in an array on a surface of a substrate 47, and the plurality of electron emitters 42 is evenly distributed on the surface of the cathode, and the complex electron emitter 42 may be a metal tip, a carbon nanotube or the like, preferably a carbon nanotube. The anode 44 is opposite the cathode and is spaced apart from the cathode 41 to form a vacuum interior which is comprised of a transparent conductive material, such as an ITO (indium tin oxide) conductive film. A phosphor layer 43 is formed on the surface of the anode 44 near the cathode side. The anode 44 faces away from the cathode. "One side surface is 093141671 Form No. 1010101 Page 7 / Total 15 Page 0993340080-0 1339290 Also formed is a diffusion 犋45 having a giant toothed surface, which can disperse the light beam and make the light source brightness More uniform sentence. Polarization conversion is formed on the expansion of the 45 table 'complex side wall 48 to the unipolar polarized light source. Apply a voltage to the cathode 41 and the anode 44, under the electric field force, the electron emitter 42 emits an electronic excitation The light layer 43 emits visible light. The visible light passes through the diffusion film 45 to obtain the light of the brightness (4), and the light passes through the polarization conversion film 46 to obtain the unipolar polarization, and the unipolar polarization directly enters the display panel. In the embodiment, the liquid crystal display panel is mounted on the display panel. [0023] Referring to the fifth figure, a liquid crystal display device according to a third embodiment of the present invention includes a liquid crystal display panel (not shown) and a monopole. The polarizing light source 5 〇 · · · ' . . . . . . . , the light source 5 〇 includes a cathode 5 丨, 士 # a fluorescent layer 、, a polarizing conversion film 55 and a plurality of electron emitters 52. The cathode 51 is a Conductive A thin film of material is formed on the surface of the substrate 56, and the electron emitter 52 is uniformly disposed on the surface of the cathode 51. The anode 54 is opposite to the cathode, and is spaced apart from the cathode 51 to form a vacuum inner space, which is made of a transparent conductive material. The composition is, for example, composed of an I TO (indium tin oxide) conductive film. The phosphor layer 53 is formed on the surface of the anode 54 near the cathode side. The anode 54 faces the cathode 51 - the side surface forms a polarization conversion film 55. The plurality of side walls 57 will The unipolar polarized light source is packaged in a 5 〇 package. A voltage is applied to the cathode 5 丨 and the anode 5 4 ′. Under the electric field force, the electron emitter 52 emits an electron excitation phosphor layer 53 to emit visible light. The visible light passes through the polarization conversion film 55 to obtain unipolar polarization. The unipolar polarized light directly enters the display panel. In this embodiment, the liquid crystal display panel is mounted on the side of the polarizing conversion film 55 of the unipolar polarized light source 50. [0024] "The 093 ϋ September 2i day is the positive page j. The liquid crystal display panel includes a reflective type, a transmissive type and a half 093141671 Form No. 1010101 Page 8 of 15 pages 0993340080-0 丄339290. On September 21, 2009, the replacement page [0025] [00 [0030] [0030] [0033] [0033] 093141671 Reflective semi-transmissive type 'It does not need to provide a polarizer. Compared with the prior art, the liquid crystal display device of the present invention has - monopole The polarized light source can self-illuminate and directly convert the light beam into unipolar polarized light into the liquid crystal display panel. The interface is significantly reduced before the light beam is converted into unipolar polarized light into the liquid crystal display panel. The light energy loss is significantly reduced, and the light utilization rate is high and the economy is saved. energy. Further, the monopolar polarized light includes - expansion, which is more favorable for the surface light source to be more uniform. Further, the monopolar polarized light source further includes a heat sink for dispersing heat generated by the light source during operation of the display device. In summary, the present invention has indeed met the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the patent application of the present invention is not limited thereto. Equivalent modifications or variations made by those skilled in the art to the spirit of the invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a schematic diagram of the structure of a prior art liquid crystal display device; the second figure is a schematic diagram of the working principle of the prior art liquid crystal display device; the third figure is a schematic diagram of the first type of monopolar polarized light source in the liquid crystal display device of the present invention; The fourth figure is a schematic diagram of a second unipolar polarized light source in the liquid crystal display device of the present invention; the fifth figure is a third unipolar polarized light source in the liquid crystal display device of the present invention, which is shown in Form No. A010] Page 9 / Total 15 Page 0993340080 -0 1339290 I Λ Λ 严 · > I Λ ^ Jt _· · ^-v —^― 月乙丄口[0034] Intention. [Main component symbol description] Unipolar polarized light source: 30, 40, 50 [0035] Cathode: 31, 41, 51 [0036] Electron emitter: 32, 42, 52 [0037] Fluorescent layer: 33, 43, 53 Anode layer: 34, 44, 54 [0039] Diffusion film: 35, 45 [0040] Polarizing conversion film: 36, 46, 55 [0041] Body 10·3 7 —:------- [ 0042] Heat sink: 38 [0043] Substrate: 39, 47, 56 [0044] Sidewall: 48, 57 093141671 Form No. A0101 Page 10 of 15 0993340080-0