201019013 六、發明說明： 【發明所屬之技術領域】 本發明係關於液晶I頁示領域，尤其涉及液晶顯示裝置 及其背光源產生方法。 【先前技術】 人們所處的自然界中，透過眼睛觀察到的物體的可見光 之光譜係豐富且往往連續。而採用普通CCFL背光之液晶顯 φ 示裝置’背光源發出之光為非連續的數個有限的譜段。我們 從LCD電視看到的顏色係對上述非連續譜段進行混色之結 ， 果，這種方法係一種對複雜彩色簡化的處理辦法，它只能^ 社重現絲景物之色彩’而與實際物體_色在光譜組成 的成份上有較大之區別，第一圖、第二圖、第三圖分 了相同顏色的自然、物體反射光譜和液晶顯示裝置顯示光譜 之區別。 習知之液晶電視大都以CCFL為背光源，這種形式下的 電視發光的譜線係不豐富的，通常光譜成分越豐富，就越接 〇 近自然色彩。而液晶顯示裝置背光CCFL之譜線帶寬要遠遠 低於顯像二基色之混色曲線’這種以譜線半峰寬較窄的顏色 來模擬半峰寬較寬之譜線顏色會造成液晶顯示裝置圖像顏 色之失真，报多的時候呈現出過綠或過紅之顏色，雖铁液晶 顯示裝置背光顏色的色域非常之寬，但係圖像的真實感較 差，與人們較適應連續譜線光線的自然環境相比，有很大 別。 ^因此，提供一種方法以CCFL為背光的LCD提供連續豐 田的了見光的譜線，使液晶顯示裝置顯示之圖像具有更接近 201019013 物體自然狀態的畫質，同時還可以提高CCFL之光效，實有 必要。 【發明内容】 本發明要解決之技術問題在於提供一種背光譜線豐富 之液晶顯示裝置，使其顯示之圖像具有更接近物體自然狀態 之晝質。 本發明提供一種液晶顯示裝置，包括液晶面板及背光系 ❷ 統’該背光系統包括複數個CCFL燈管，每一 CCFL燈管發出 之光譜曲線至少包括五種不同譜線之主峰。 ‘ 本發明提供一種液晶顯示裝置，包括液晶面板及背光系 統’該背光系統包括複數個CCFL燈管組，每一 CCFL燈管組 包括至少二不同光譜之燈管。 更具體的，該等燈管係混色燈管。 更具體的，該等燈管係單色燈管，該等單色燈管發光光 谱之顏色包括紅綠藍青黃。 Θ 更具體的，該等發光燈管組之發光亮度根據畫面亮度需 要進行動態控制。 相比習知之液晶顯示裝置，本發明提供之液晶顯示裝 置，其背光譜線相較習知液晶顯示裝置之譜線更為豐富，接 近於自然界的連續全光譜，從而使顯示系統之色彩更加逼近 景物之自然色。能更好的還原或逼近自然界景物之真實顏 色，此外，仿真自然光線之全光譜背光係人眼最適應的，還 能使眼睛放鬆，不易產生疲勞。 4 201019013 【實施方式】 為了使本發明之目的、技術方案及優點更加清楚明白， 以下結合附圖及實施方式，對本發明進行進一步詳細說明。 應、當轉’此處所描述之具體實施方式健践解釋本發 明’並不用於限定本發明。 在本發明之目的係提供一個背光譜線豐富之液晶顯示 裝置’為了實現這-目的，係要提升背光譜線之寬度，第四 圖係習知OTL之譜線分佈，細可赠出除紅賴三色譜 ❹ 線崎的其它譜線之能量都比較低，本發魏過增加與紅綠 藍三色譜線不同的其它譜朗發統方式實現背光譜線寬 1 度之增加。本發明之具體實施方式係透過採用能使CCFL燈 . 光發出黃色和青色譜線的螢光粉實現背光譜線之增加。可以 理解的是增加背光源譜線寬度之方式並不局限於增加兩種 譜線之螢光粉。 採用多種螢光粉製成CCFL時有多種組合方式： ★第一類係將多種譜線之螢光粉全部塗布在同一 CCFL燈 #之_ ’本發明之實施方式係將紅絲青黃五種譜線之螢 雩 光粉塗布在- CCFL燈管内。青色螢光粉之譜線主峰波長在 470〜500nm之間’黃色螢光粉之譜線的主峰波長在55〇 之間。這種方式之優點係不改變習知背光系統之任何結構。 _第二類係將多種譜線之螢光粉分為幾組分別塗布在不 同，CCFL燈管之内部，製成混色燈管，例如紅綠藍青黃五 種譜線可以分成兩組輯塗布，—組係紅_三色螢光粉塗 f在- OTL燈管之内部，二_#黃雜$錄塗布在另 一 CCFL·燈管之内部，二混色燈管都能形成白平衡，使用時 201019013 兩個色燈管間隔排列。 第二類係多種譜線之螢光粉分別塗布在不同的ccpL燈 官之内部’每-燈管都係單色燈管，例如紅雜青黃五種譜 線之營光粉分別塗布在五CCFL上，在使用時五CCFL燈管依 -人排列’該種塗布方式之有益效果係可以提高電光轉換效 率’傳統的cm燈管巾通常顧種顏色之縣粉在同時發 光才能產生白光，但由於塗層之厚度以及_不同螢光粉之 激，狀態’聽〔m無法ji作在最佳電轉換效率點上， 而單：CCFL只採用一種谱線螢光粉，這就會使每一 ccfl工 作於最佳狀態，有利於提高整體的電光轉換效率。 CCFL的排列組合不僅限於上述例舉，還包括單色燈管盘 混色燈管之組合，如紅綠藍單色燈管與青黃混色燈管組合了 對採用不_絲分佈之OTL燈管料f光源時，可 以根據其各自之贱躲和實際要求進行組合，如第五圖所 示採用_ OTL燈管之組合’其中—種係採用紅綠藍三色 螢光粉燈管20，而另-種採用的係青黃螢光粉燈管4〇，在 直下式分佈時，我們就可以根據其各自之光學特性，發光強 度、以及設計要求來決定每觀管的需求來進行組合排列， 並確定其各自之發光亮度。 ΊΓ理解本發03k供之GGFL燈管或燈管組也可以在侧發 光之背光系統中使用。 對於本發明提供之燈管類型及其組合排列方式不影響 其利用動態背光技術，來降低其功耗並提高其對比度。 對於整體祕魏的对，即整個背絲源之亮度係統 -變化的，其具體實财法麟，仙根據當面對背光 的需求來輕背光的亮度，同雜正要顯示晝面之圖元資 201019013 ==朴無祕背綠兩種方觸畫面之亮度 對於採用私CCFL燈管作為背光源，可 之動態背光方式：我們可以具有_f光粉的⑽ 組獨立可控之燈管，例如五OTL分別_ 了 = 種蝥光粉，那麼這種情況下我們把每一種顏色之= -，獨立可控燈，但我們根據圖像只能得到 $ 巧需Γ= 據圖像之需求得到紅綠藍三色 =度需求，η cm之献需求就賴從紅賴三 來，可以透過下面演算法得到： 一巴τ得 青色之亮度需求=(藍色亮度需求+綠 紅色亮度需求+綠色=/2; 255，ίΪΐ :係255的時候，那麼得到的青黃也係 :可以得到青和黃都係咖，也可轉都證俜白=== ⑽’而紅綠都為〇的時候，則青為5G，而黃為在藍為 過本發明^供之液晶顯示裝 ^ 豐富，接近於== 的還原或景物之自然色。能更好 疲勞。’、適應的’雜舰較鬆，不易產生 本發發騎触實财式μ，並不用以限制 201019013 【圖式簡單說明】 第一圖係顯示了藍色之自然物體反射光譜和液晶顯示裝 置顯示光譜之對照圖； 第二圖係顯示了綠色之自然物體反射光譜和液晶顯示裝 置顯示光譜之對照圖； 第三圖係顯示了紅色之自然物體反射光譜和液晶顯示裝 置顯示光譜之對照圖； 第四圖係一習知CCFL背光源之譜線分佈曲線；以及 第五圖係採用兩種CCFL燈管之排列組合圖。 【主要元件符號說明】 紅綠藍三色螢光粉燈管 20 青黃螢光粉燈管 40 8201019013 VI. Description of the Invention: [Technical Field] The present invention relates to the field of liquid crystal I, and more particularly to a liquid crystal display device and a backlight generating method thereof. [Prior Art] In the natural world where people are exposed, the spectrum of visible light of an object observed through the eyes is rich and often continuous. In the case of a liquid crystal display device using a conventional CCFL backlight, the light emitted by the backlight is a non-continuous number of limited spectral segments. The color we see from the LCD TV is the color mixture of the above-mentioned discontinuous spectrum. If this method is a simplified color processing method, it can only reproduce the color of the silk scene' and actual The object_color has a large difference in the composition of the spectral composition. The first picture, the second picture, and the third picture distinguish the natural, object reflection spectrum of the same color and the display spectrum of the liquid crystal display device. Conventional LCD TVs mostly use CCFL as the backlight. In this form, the spectrum of TV illumination is not rich, and the richer the spectral components, the closer it is to natural colors. The spectral line bandwidth of the CCFL of the liquid crystal display device is much lower than the color mixture curve of the two primary colors of the image. This kind of color with a narrow half-width of the line to simulate a half-width wide spectral line color will cause liquid crystal display. The color of the device image is distorted. When it is reported, the color of the image is too green or too red. Although the color gamut of the backlight color of the iron liquid crystal display device is very wide, the image has a poor realism and is more suitable for people to adapt to the continuum. The natural environment of the line of light is quite different. ^ Therefore, a method is provided to provide a continuous Toyota line of light with a CCFL-backlit LCD, so that the image displayed by the liquid crystal display device has a picture quality closer to the natural state of the 201019013 object, and can also improve the light effect of the CCFL. It is necessary. SUMMARY OF THE INVENTION The technical problem to be solved by the present invention is to provide a liquid crystal display device having a rich back spectrum line, such that an image displayed thereon has an enamel closer to the natural state of the object. The present invention provides a liquid crystal display device comprising a liquid crystal panel and a backlight system. The backlight system includes a plurality of CCFL lamps, and each of the CCFL lamps emits a spectral curve including at least five main peaks of different spectral lines. The present invention provides a liquid crystal display device including a liquid crystal panel and a backlight system. The backlight system includes a plurality of CCFL lamp groups, and each CCFL lamp group includes at least two lamps of different spectra. More specifically, the lamps are mixed color lamps. More specifically, the lamps are monochromatic tubes, and the colors of the luminescence of the monochromatic tubes include red, green, blue and yellow. Θ More specifically, the brightness of the light-emitting tube sets is dynamically controlled according to the brightness of the picture. Compared with the conventional liquid crystal display device, the liquid crystal display device provided by the present invention has a richer spectral line than that of the conventional liquid crystal display device, and is close to the continuous full spectrum of the natural world, thereby making the color of the display system closer. The natural color of the scene. It can better restore or approximate the true color of natural scenery. In addition, the full-spectrum backlight of simulated natural light is most suitable for the human eye, and it can also relax the eyes and not cause fatigue. 4 201019013 [Embodiment] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The present invention is not to be construed as limiting the invention. In the purpose of the present invention, a liquid crystal display device having a rich back-spectrum line is provided. In order to achieve this, the width of the back spectral line is increased, and the fourth figure is a spectral distribution of the conventional OTL. Lai San Chromatography The energy of other lines of the line is relatively low. This method has increased the width of the back spectral line by 1 degree by increasing the spectrum of the other lines different from the red, green and blue. Embodiments of the present invention achieve an increase in the back spectral line by using a phosphor that enables the CCFL lamp to emit yellow and cyan lines. It will be appreciated that the manner in which the linewidth of the backlight is increased is not limited to the addition of phosphors of both lines. There are many combinations of CCFLs made from a variety of fluorescent powders: ★ The first type is to apply all kinds of spectral phosphors to the same CCFL lamp#. 'The embodiment of the present invention is five kinds of red and blue The spectral fluorite powder is coated in a - CCFL tube. The main peak wavelength of the cyan fluorescent powder is between 470 and 500 nm. The main peak wavelength of the yellow fluorescent powder is between 55 Å. The advantage of this approach is that it does not alter any of the structures of conventional backlight systems. _ The second type is to divide the fluorescent powders of various spectral lines into several groups and coat them in different CCFL tubes to make mixed color lamps. For example, the five kinds of lines of red, green, blue and yellow can be divided into two groups. , - group red _ three-color fluorescent powder coating f inside - OTL tube inside, two _# yellow miscellaneous $ recorded coated inside another CCFL · tube, two mixed color lamps can form a white balance, use When 201019013 two color tubes are arranged at intervals. The second type of fluorescent powder with multiple spectral lines is coated in different ccpL lamp's interiors. Each lamp is a monochromatic lamp. For example, the camping powders of the five kinds of red and yellow lines are coated in five. On the CCFL, when used, the five CCFL lamps are arranged in a human-like manner. The beneficial effect of the coating method is to improve the electro-optic conversion efficiency. The traditional cm lamp tube usually emits white light at the same time to produce white light, but Due to the thickness of the coating and the stimuli of different phosphors, the state 'listen' can't be used at the point of optimal electrical conversion efficiency, while the single: CCFL uses only one kind of spectral phosphor, which will make each The ccfl works in an optimal state, which is beneficial to improve the overall electro-optical conversion efficiency. The arrangement of the CCFL is not limited to the above examples, and includes a combination of a monochromatic lamp tube color mixing lamp, such as a red, green and blue monochromatic tube combined with a cyan mixed color tube for the use of a non-wire distributed OTL tube material. When f light source, it can be combined according to its respective hiding and actual requirements. As shown in the fifth figure, the combination of _ OTL lamp is used. Among them, the red, green and blue three-color fluorescent powder lamp 20 is used. - The type of blue-yellow fluorescent powder tube used is 4〇. When distributed in direct type, we can determine the requirements of each tube according to their respective optical characteristics, luminous intensity and design requirements, and determine their The respective brightness of the light. ΊΓUnderstand that the GGFL lamp or tube set for this 03k can also be used in the backlight system with side emission. The type of lamp provided by the present invention and its combined arrangement do not affect its use of dynamic backlight technology to reduce its power consumption and increase its contrast. For the whole secret Wei, that is, the brightness system of the entire back wire source - the change, the specific real money law Lin, according to the need to face the backlight to light the brightness of the backlight, the same is to display the picture of the face 201019013 == Park has no secret back green two sides touch the brightness of the screen for the use of private CCFL lamp as a backlight, dynamic backlight mode: we can have _f powder (10) group of independently controllable lamps, for example Five OTL _ = = 蝥 蝥 ,, then in this case we put each color = -, independent controllable lamp, but we can only get $ according to the image 巧 = according to the needs of the image to get red Green and blue three colors = degree demand, η cm contribution demand depends on the red Lai three, can be obtained through the following algorithm: one bar τ get cyan brightness demand = (blue brightness demand + green red brightness demand + green = /2; 255, Ϊΐ : When the system is 255, then the green yellow is also obtained: you can get the green and yellow ties, you can also turn the card to 俜 white === (10)' and the red and green are 〇, Then the green is 5G, and the yellow is in the blue for the invention. The liquid crystal display device is rich and close. == The restoration or the natural color of the scene. It can be better fatigue. ', the adapted 'miscellaneous ship is looser, it is not easy to produce the hair riding type of real money μ, not used to limit 201019013 [simple description of the map] first The figure shows a contrast map of the blue natural object reflection spectrum and the liquid crystal display device display spectrum; the second figure shows the green natural object reflection spectrum and the liquid crystal display device display spectrum; the third figure shows the red The natural object reflection spectrum and the liquid crystal display device display spectrum comparison chart; the fourth picture is a conventional CCFL backlight source line distribution curve; and the fifth picture system uses two CCFL lamp arrangement arrangement diagram. Symbol Description] Red, green and blue three-color fluorescent powder tube 20 green yellow fluorescent powder tube 40 8