doc/g 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種光源裝置、顯示器與驅動方法， 且特別是有陳-種背光额、液晶顯示器舰晶顯示器 的驅動方法。 °° 【先前技術】 有些類型的顯示面板由於#本身不#{，因此需配置 背光源。例如，液晶顯示器便需要背光源來輔助顯示晝面。 隨著視角問題相當程度的改善與售價的大幅降低，液晶顯 示益取代陰極射、線管(CRT: Cathode Ray Tube)顯示器成為 „的趨勢已經展開。並野心勃勃地將下—個目標鎖 定市場更廣大之家用電視。為了達到與陰極射線管顯示器 匹敵=動態影像品質顯示’各個著名之液晶顯示器研發單 位已著手探討改善液晶顯示器之動態特性。液晶顯示器在 顯示動態影像時的品質下降包括：動態對比的降低、邊緣 擴散(edge-blur)、與動作跳躍(Str〇b〇sc〇pic m〇ti〇n)。主要 ^因於液晶之反應速度慢與所謂的腿_type f料寫Doc/g IX. Description of the Invention: [Technical Field] The present invention relates to a light source device, a display and a driving method, and particularly to a method for driving a crystal display of a liquid crystal display. °° [Prior Art] Some types of display panels require a backlight because ## is not #{. For example, a liquid crystal display requires a backlight to assist in displaying the face. As the viewing angle problem has been considerably improved and the price has been greatly reduced, the trend of liquid crystal display replacing the cathode shot and line tube (CRT: Cathode Ray Tube) display has begun. It is ambitious to target the next market. A wider range of home TVs. In order to match the cathode ray tube display = dynamic image quality display, 'the famous liquid crystal display R&D unit has begun to explore the improvement of the dynamic characteristics of the liquid crystal display. The quality degradation of the liquid crystal display when displaying dynamic images includes: dynamic Contrast reduction, edge-blur, and motion jump (Str〇b〇sc〇pic m〇ti〇n). Mainly due to slow reaction speed of liquid crystal and so-called leg _type f writing
性0 J 為降低Hold type資料寫入特性的影響，可實施之方 ^可分為兩大類：影像暫時巾斷法與非影像中斷法 2仿陰鋪絲顯示_影像㈣情 ==是議料更新速度或是對於動= 像品^ ^ 背光（购㈣）是改善動態影 ⑽貝h本方法，然而這也會造成額外的電力消耗以及 doc/g 燈管壽命減少的疑慮。 美國專利公告第4958915號專利揭露一種液晶裝置， 其中包括一種手段，使閃爍式背光之低準位亮度同步於資 料寫入顯示面板之期間。此習知技術是使背光源以一固定 頻率閃爍，而模仿陰極射線管顯示器將影像暫時中斷，藉 以改善液晶顯示器之動態特性。 美國專利公開第2002/0154088號專利揭露一種傳遞 型液晶顯示裝置。此習知技術是以動畫參數決定冷陰極燈 管之啟閉時間，而在一畫框週期中垂直空白週期内關閉所 有冷陰極燈管，藉以改善液晶顯示器之動態特性。 美國專利公開第2004/0246242號專利揭露一種顯示 裝置。此習知技術是以動晝參數決定在一晝框週期中冷陰 極燈管之啟閉時間。換句話說，其是以動晝的移動量&決 定冷陰極燈管在一畫框週期中點亮與變暗時間比率，藉以 改善液晶顯示器之動態特性。 美國專利公開第2004/0051692號專利揭露一種液晶 顯示裝置。此習知技術是依照顯示信號中的亮度資訊，藉 由調整點亮週期與不亮週期二者的時間比例而控制背光源 之亮度。 承上述，一般顯示器常會同時顯示資料等靜態書面與 動晝等動態晝面，但是對於靜態晝面而言，並沒有必要使 用閃爍式背光，因此習知閃爍式背光在顯示器顯示靜雜書 面的部分，更造成額外的電力消耗以及燈管壽命減少的疑 慮。 I287^79L,oc/g 【發明内容】 本發明的目的是在提供一種背光模組、液晶顯示器與 液晶顯示器的驅動方法，適於解決閃爍式背光所造成額外 的電力消耗以及燈管壽命減少的疑慮。 本發明提出一種液晶顯示為’其包括一液晶顯示面板 與一配置於液晶顯示面板下方的背光模組。背光模組包括 多個第一光源、多個第二光源以及一光源驅動電路。第一 光源排列於液晶顯示面板下方的一第一區域，而第二光源 排列於液晶顯示面板下方的一弟一區域。光源驅動電路電 性連接第一光源與第二光源’並以一掃描頻率驅動第一光 源之明滅，而驅動第二光源保持在點亮狀態。 在此液晶顯示器的一實施例中，液晶顯示面板具有一 顯示驅動電路，其根據一第一迦瑪曲線控制第一光源上方 之液晶顯示面板的灰階表現，並根據一第二迦瑪曲線控制 第二光源上方之液晶顯示面板的灰階表現，且第一迦瑪曲 線與第二迦瑪曲線不同。 本發明另提出一種背光模組，其包括多個第一光源、 多個第二光源以及一光源驅動電路。第一光源排列於二第 -區域’而第二光源排列於―第二區域。光源驅動電路電 ϋ連接第—光源與第二光源，並以—掃描頻率驅動第一光 源之明滅，而鶴第二光縣持在點亮狀態。 在上述月光模組與液晶顯示器的一實施例中，光源驅 動電路控制各第一氺、、/5咖A Μ /Ν，' 多产H ^ 與各紅光源之亮度分別為一第一 儿又/、 一冗度，且第一亮度與第二亮度可以不同。 I28H/g 在上述背光模組與液晶顯示器的一實施例中，第一光 源與第二光源包括發光二極體（light emitting diode, LED)、勞光平面燈⑴u〇rescent打扯iamp)或勞光燈管 (fluorescent lamp)。其中，螢光燈管又包括直線型燈管或u 型燈管。 在上述背光模組與液晶顯示器的一實施例中，背光模 組可更包括一導光板，其配置於液晶顯示面板下方，而第 φ 一光源與第二光源排列於導光板之入光側旁。 本發明更提出一種液晶顯示器的驅動方法。其中，液 晶顯不器包括一液晶顯示面板與一配置於液晶顯示面板下 方的背光模組’背光模組具有多個排列的光源。此液晶顯 示器的驅動方法包括：當液晶顯示面板同時顯示一靜態晝 面與一動恶晝面時’以一掃描頻率驅動位於動態畫面下方 之光源的明滅’而驅動位於靜態晝面下方之光源保持在點 亮狀態。 在此液晶顯示器的驅動方法的一實施例中，更包括： • ㈣位於動態晝面下方之各絲的亮度為一第—亮度，並 控制位於靜態晝面下方之各光源的亮度為一第二亮度，且 第一党度與第二亮度不同。 在此液晶顯示器的驅動方法的一實施例中，更包括： 根據-第-迦瑪曲線控制顯示動態晝面之液晶顯示面板的 灰階表現，並根據-第二♦碼曲線控制顯示靜態畫面之液 晶顯示面板的灰階表現，且第一迦瑪曲線與第二迦瑪曲線 不同。 I28m doc/g 之背光模組、液晶_器與紅 =的=方法中，由於背光模組的部分光源是以掃瞒 方式進仃驅動，而部分光源則是保持在點亮狀鲅， 僅可改善動態晝面的拖影現象，還可減少靜態書 不 光源的電力消耗以及光源壽命減少的疑慮。之 為讓本發明之上述和其他目的、特徵和優點能更明顯 易懂，下文特舉較佳實施例，並配合所附圖式，作詳細說 • 明如下。 、、… 【實施方式】 圖1為本發明一實施例之液晶顯示器的剖面示意圖， 而圖2Α〜2D為圖1中光源之點亮狀態的變化示意圖。請 參照圖1，本實施例之液晶顯示器1〇〇〇包括一液晶顯示面 板200與一背光模組丨00。背光模組1〇〇配置於液晶顯示 面板200下方，用以提供液晶顯示面板2〇〇所需之面光源。 另外’液晶顯示器1000還可包括一外殼300，用以將液晶 顯示面板200與背光模組1〇〇容納於其中。 • 接著請參照圖1與圖2Α〜2D，背光模組1〇〇包括多 個第一光源110、多個第二光源120以及一光源驅動電路 130。第一光源11〇與第二光源12〇皆排列於液晶顯示面板 200的下方，其中第一光源11〇排列於〆第一區域S10， 而第二光源120排列於一第二區域s2〇。光源驅動電路120 電性連接第一光源110與第二光源120，旅以一掃描頻率 驅動第一光源110之明滅，而驅動第二光源120保持在點 亮狀態。另外，背光模組1〇〇還可包括一燈箱丨50與一擴 rf.doc/g 散板140。燈箱150用以容納第一光源11〇與第二光源 120 ’並可反射第一光源11〇與第二光源12〇戶斤發[之光 線。擴散板140配置於第-光源11〇與第二光源12〇上方， 以使背光模組100能提供更為均勻之面光源。 舉例而言，在一第一時序内，所有第二光源12〇皆保 持，點亮狀態’而最右邊三個第—光源n。也保持在點亮 狀悲’，餘第-光源110則保持在關閉狀態，如圖2A所 不。接著，在-第二時序内，上一時序中被點亮之第一光 源110被關閉，而其旁邊的三個第一光源11〇則被點亮， 如圖2B所示。狄德，力_钕—„士产〜 % 古 吓丁…傻在苐二時序内，上一時序中被點 =第:光源11G被關，而其旁邊的三個第—光源ιι〇 、被點壳，如圖2C所示。最後，在一第四時序内，上一 時序中被點亮之第-光源no被關閉，而其旁邊的：個第 -光源m則被點亮，如圖2D所示。換言二 ^ 120皆保持在點亮狀態，而第—光源η·以一掃目苗 頻罕依序明滅。 :月參照圖1 ’藉由上述設計，液晶顯示面板2〇〇位於 -光源110上方的第—顯示區S3()將適於顯示動態畫 更新、動晝等。其中’液晶顯示面板在畫面 樣即“，方向需與第—光源11G的掃目苗方向-致，這 顯示面善顯ΐ動態晝面時的拖影現象。另外，液晶 適於顯示,第—光源12G上方的第二顯示區S40將 不存^、1 例如文字、圖片等。由於靜態畫面並 也衫問題’因此這樣的設計可減少第二光源12〇不 doc/g Ι287&· 斷明滅所造成的電力消耗，並且降低壽命減少的疑慮。 值得注意的是，雖然在圖2A〜2D中是以16根燈管、 16:9之螢幕長寬比以及每次點亮3根第一光源11〇為例， 但本發明並不限定光源數量、螢幕長寬比以及每次點亮之. 第一光源110的數量。另外，第一光源11〇的點亮順^也 不限定需按照圖2A/圖2B/圖2C/圖2D的順序，例如圖2A/ 圖2C/圖2B/圖2D、圖2A/圖2D /圖2B/圖2C或其他順序 • 也都可以，但液晶顯示面板200的晝面更新順序也必須對 應調整。再者，第一光源11〇與第二光源12〇的位置並不 而要固定，可藉由光源驅動電路丨3〇的控制隨時調整。例 如當液晶顯示面板200的右邊顯示靜態畫面時，就使位於 背光模組100位於右邊的部分保持在點亮狀態，而使以掃 瞄方式驅動背光模組1〇〇位於左邊的部分，以使液晶顯示 面板200的左邊適於顯示動態晝面。 一此外，請參照圖1，液晶顯示面板200例如具有一顯 不驅動電路210,其根據一第一迦瑪曲線控制第一光源u〇 • 上方之液晶顯示面板2〇〇(第一顯示區S3〇)的灰階表現，並 根據一第二迦瑪曲線控制第二光源12〇上方之液晶顯示面 板的灰階表現200(第二顯示區S4〇)，且第一迦瑪曲線與第 一迦瑪曲線不同。換言之，顯示驅動電路21〇可依據靜態 畫面與動悲晝面的不同特性，而以不同的迦瑪曲線控制第 一顯示區S30與第二顯示區S4〇的灰階表現，以求得最佳 的顯示品質。 另外’由於靜態畫面與動態畫面對於亮度的需求也不 12 I287®w,doc/g 同，因此光源驅動電路130也可將第一光源110與第二光 丄20之冗度调整為互不相同。具體而言，動態畫面可能 t而要較咼壳度以表現較佳對比，而靜態晝面的亮度則不 需f那麼高。此外，由於第-光源11G是崎瞒方式輪流 點f L因此各個第一光源110的亮度可能需要提高數倍， 才能讓第一顯示區S30所獲得之亮度與所有第一光源11〇 同時點亮時的亮度相同。以上這些亮度的調整，皆可 光源驅動電路130達成。 圖3A〜3D疋採用發光二極體做為光源之點亮狀態的 變化示意圖，而圖4A〜4C是採用冷陰極螢光平面燈(c〇M cathode fluorescent flat lamp, CCFFLm為光源之點亮狀態 的變化示意圖。在背光模組100中，第一光源u〇與第二 光源120可採用直線型的冷陰極螢光燈管(⑺记 fluorescent lamp，CCFL)，如圖 2A〜痛- 、 二υ r/y不。此外，第一 光源110與第二光源120也可以採用發光二極體，且 光源110同樣採用掃瞄式驅動，如圖3a〜3d~/_、 第-光源no與第二光源12〇還可採用冷陰極：^卜面 燈，且第一光源110同樣採用掃瞄式驅動，如回巧丁田 所示。當然’第一光源110與第二光调l。 A 4C 極登光燈。 切_切採用熱陰 園… 一…焉呃例之背光模組豆亦 源之點亮狀態的變化示意圖。請參照圖2A〜2n、'' '、 〜5C，雖然在圖2A〜2D中第一光源11〇的掃目^ 水平變化為例，但本發明之背光模組中第一方向疋以 τ ^ 九源110的掃 13 1287675 17894twf.doc/g 瞄方向也可如圖5A〜5C所示般沿垂直方向變化。另外， 弟一光源120的排列區域也不限定位於第一光源11〇的 上、下、左、右等各種方位，甚至可將第二光源12〇排列 於第一光源110中間，端視靜態晝面與動態晝面的配置方 式而定。例如，若採用圖5A所示之配置方式，即適合在 下方顯示靜態晝面，而在上方顯示動態晝面。Sex 0 J In order to reduce the influence of the write characteristics of the Hold type data, the implementation can be divided into two categories: image temporary toweling method and non-image interruption method 2 imitation Yin silk display _ image (four) love == is the material The update speed or for the motion = image ^ ^ backlight (purchase (four)) is to improve the dynamic shadow (10), but this will also cause additional power consumption and doubts about the doc / g lamp life reduction. U.S. Patent No. 4,895,915 discloses a liquid crystal device which includes a means for synchronizing the low level brightness of the flashing backlight during the writing of the data to the display panel. This prior art technique allows the backlight to flash at a fixed frequency and simulates a cathode ray tube display to temporarily interrupt the image to improve the dynamic characteristics of the liquid crystal display. A transfer type liquid crystal display device is disclosed in U.S. Patent Publication No. 2002/0154088. This conventional technique determines the opening and closing time of the cold cathode lamp by an animation parameter, and turns off all the cold cathode lamps in a vertical blank period in a frame period, thereby improving the dynamic characteristics of the liquid crystal display. A display device is disclosed in U.S. Patent Publication No. 2004/0246242. This prior art technique uses the dynamic parameters to determine the opening and closing time of the cold cathode lamp in a frame period. In other words, it is based on the amount of movement & determines the ratio of the lighting and darkening time of the cold cathode lamp in a frame period, thereby improving the dynamic characteristics of the liquid crystal display. A liquid crystal display device is disclosed in U.S. Patent Publication No. 2004/0051692. This prior art technique controls the brightness of the backlight by adjusting the ratio of the time between the lighting period and the non-lighting period in accordance with the brightness information in the display signal. In view of the above, the general display often displays dynamic images such as static writing and dynamics, but for the static surface, it is not necessary to use a flashing backlight. Therefore, the conventional flashing backlight displays a silent written part on the display. It also creates additional power consumption and concerns about reduced lamp life. I287^79L, oc/g SUMMARY OF THE INVENTION The object of the present invention is to provide a backlight module, a liquid crystal display, and a liquid crystal display driving method, which are suitable for solving the additional power consumption caused by the flashing backlight and the lamp life reduction. doubt. The invention provides a liquid crystal display comprising a liquid crystal display panel and a backlight module disposed under the liquid crystal display panel. The backlight module includes a plurality of first light sources, a plurality of second light sources, and a light source driving circuit. The first light source is arranged in a first area below the liquid crystal display panel, and the second light source is arranged in a first area below the liquid crystal display panel. The light source driving circuit is electrically connected to the first light source and the second light source ′ and drives the first light source to be turned off at a scanning frequency, while driving the second light source to remain in a lighting state. In an embodiment of the liquid crystal display, the liquid crystal display panel has a display driving circuit for controlling the gray scale representation of the liquid crystal display panel above the first light source according to a first gamma curve, and controlling according to a second gamma curve The gray scale representation of the liquid crystal display panel above the second light source, and the first gamma curve is different from the second gamma curve. The present invention further provides a backlight module including a plurality of first light sources, a plurality of second light sources, and a light source driving circuit. The first light source is arranged in the second region - and the second light source is arranged in the second region. The light source driving circuit electrically connects the first light source and the second light source, and drives the first light source to be extinguished by the scanning frequency, and the crane second light county is kept in the lighting state. In an embodiment of the moonlight module and the liquid crystal display, the light source driving circuit controls each of the first 、, /5 咖 A Μ / Ν, 'the yield of the prolific H ^ and the red light source respectively is the first one /, a degree of redundancy, and the first brightness and the second brightness may be different. I28H/g In an embodiment of the backlight module and the liquid crystal display, the first light source and the second light source comprise a light emitting diode (LED), a light flat panel light (1), or a light emitting device (1) Fluorescent lamp. Among them, the fluorescent tube includes a linear tube or a u-shaped tube. In an embodiment of the backlight module and the liquid crystal display, the backlight module further includes a light guide plate disposed under the liquid crystal display panel, and the φth light source and the second light source are arranged beside the light incident side of the light guide plate. . The invention further proposes a driving method of a liquid crystal display. The liquid crystal display device comprises a liquid crystal display panel and a backlight module disposed under the liquid crystal display panel. The backlight module has a plurality of arranged light sources. The driving method of the liquid crystal display comprises: when the liquid crystal display panel simultaneously displays a static surface and a moving surface, the driving of the light source located below the dynamic image is driven by a scanning frequency. Lights up. In an embodiment of the driving method of the liquid crystal display, the method further comprises: • (4) the brightness of each of the wires under the dynamic kneading surface is a first brightness, and controlling the brightness of each light source located below the static kneading surface to be a second Brightness, and the first party degree is different from the second brightness. In an embodiment of the driving method of the liquid crystal display, the method further comprises: controlling the gray scale performance of the liquid crystal display panel displaying the dynamic surface according to the - gamma curve, and controlling the display of the static image according to the second ♦ code curve The gray scale representation of the liquid crystal display panel, and the first gamma curve is different from the second gamma curve. In the I28m doc/g backlight module, the liquid crystal_device and the red== method, some of the light sources of the backlight module are driven by the broom, while some of the light sources are kept in the light state, only Improving the smear phenomenon of the dynamic surface can also reduce the power consumption of the static book without the light source and the doubt that the life of the light source is reduced. The above and other objects, features and advantages of the present invention will become more <RTIgt; [Embodiment] FIG. 1 is a cross-sectional view showing a liquid crystal display according to an embodiment of the present invention, and FIGS. 2A to 2D are diagrams showing changes in a lighting state of the light source of FIG. 1. Referring to FIG. 1, the liquid crystal display 1 of the present embodiment includes a liquid crystal display panel 200 and a backlight module 丨00. The backlight module 1 is disposed under the liquid crystal display panel 200 to provide a surface light source required for the liquid crystal display panel 2 . Further, the liquid crystal display 1000 may further include a casing 300 for accommodating the liquid crystal display panel 200 and the backlight module 1 therein. • Referring to FIG. 1 and FIGS. 2A to 2D, the backlight module 1A includes a plurality of first light sources 110, a plurality of second light sources 120, and a light source driving circuit 130. The first light source 11A and the second light source 12A are arranged below the liquid crystal display panel 200, wherein the first light source 11 is arranged in the first region S10, and the second light source 120 is arranged in a second region s2. The light source driving circuit 120 is electrically connected to the first light source 110 and the second light source 120, and the driving light drives the first light source 110 to be turned off at a scanning frequency, and drives the second light source 120 to remain in an on state. In addition, the backlight module 1A may further include a light box 丨50 and a diffusing rf.doc/g diffusing plate 140. The light box 150 is for accommodating the first light source 11 〇 and the second light source 120 ′ and can reflect the light of the first light source 11 〇 and the second light source 12 . The diffusion plate 140 is disposed above the first light source 11 〇 and the second light source 12 , to enable the backlight module 100 to provide a more uniform surface light source. For example, in a first sequence, all of the second sources 12 保 are held, the light state 'and the rightmost three first light sources n. It also remains lit, and the remaining light source 110 remains in the off state, as shown in Figure 2A. Next, in the -second timing, the first light source 110 that was illuminated in the previous sequence is turned off, and the three first light sources 11A adjacent thereto are illuminated, as shown in Fig. 2B. Dide, force _ 钕 - „士产~ % 古惊丁... silly in the second time sequence, the last time in the time is the point = the first: the light source 11G is off, and the three first light source ιι〇, The point shell is as shown in Fig. 2C. Finally, in a fourth timing, the first light source no being lit in the previous sequence is turned off, and the first light source m next to it is lit, as shown in the figure. 2D is shown. In other words, the two ^ 120 are kept in the lighting state, and the first light source η· is extinguished in sequence by a sweeping seedling. The month refers to FIG. 1 'With the above design, the liquid crystal display panel 2 is located at - The first display area S3() above the light source 110 will be adapted to display dynamic picture updates, dynamics, etc. wherein the 'liquid crystal display panel is in the picture, ie, the direction needs to be in the direction of the first light source 11G. The smear phenomenon when the display surface is good and the dynamic surface is displayed. Further, the liquid crystal is suitable for display, and the second display area S40 above the first light source 12G will not contain ^, 1 such as characters, pictures, or the like. Because of the static picture and the problem of the shirt, the design can reduce the power consumption caused by the second light source 12 and the doc/g Ι 287 & It should be noted that although in FIGS. 2A to 2D, 16 lamps, a 16:9 aspect ratio, and three first light sources 11 are illuminated each time, the present invention does not limit the number of light sources. , the aspect ratio of the screen and each time it is lit. The number of first light sources 110. In addition, the lighting of the first light source 11〇 is not limited to the order of FIG. 2A/FIG. 2B/FIG. 2C/FIG. 2D, for example, FIG. 2A/FIG. 2C/FIG. 2B/FIG. 2D, FIG. 2A/FIG. 2D/ 2B/FIG. 2C or other sequences may be used, but the order in which the liquid crystal display panel 200 is updated must also be adjusted accordingly. Furthermore, the positions of the first light source 11A and the second light source 12A are not fixed, and can be adjusted at any time by the control of the light source driving circuit 丨3〇. For example, when the static picture is displayed on the right side of the liquid crystal display panel 200, the portion located on the right side of the backlight module 100 is kept in the lighting state, and the portion of the backlight module 1 located on the left side is driven in a scanning manner so that The left side of the liquid crystal display panel 200 is adapted to display a dynamic facet. In addition, referring to FIG. 1 , the liquid crystal display panel 200 has, for example, a display driving circuit 210 for controlling the liquid crystal display panel 2 第一 above the first light source according to a first gamma curve (first display area S3 )灰) the gray scale representation, and according to a second gamma curve, the gray scale representation 200 (second display area S4〇) of the liquid crystal display panel above the second light source 12〇 is controlled, and the first gamma curve and the first ga The horse curve is different. In other words, the display driving circuit 21 can control the gray scale performance of the first display area S30 and the second display area S4 以 with different gamma curves according to different characteristics of the static picture and the moving sorrow surface to obtain the best. Display quality. In addition, since the requirements for brightness of the static picture and the dynamic picture are not the same as 12 I287®w, doc/g, the light source driving circuit 130 can also adjust the redundancy of the first light source 110 and the second aperture 20 to be different from each other. . Specifically, the dynamic picture may be better than the case size to show a better contrast, while the static facet brightness is not as high as f. In addition, since the first light source 11G is the rugged mode turn point f L, the brightness of each of the first light sources 110 may need to be increased by several times, so that the brightness obtained by the first display area S30 is simultaneously illuminated with all the first light sources 11〇. The brightness is the same. The above adjustment of the brightness can be achieved by the light source driving circuit 130. 3A to 3D are schematic diagrams showing changes in the lighting state of the light-emitting diode as a light source, and FIGS. 4A to 4C are diagrams showing a lighting state of a light source using a cold cathode fluorescent flat lamp (c〇M cathode fluorescent flat lamp, CCFFLm). In the backlight module 100, the first light source u〇 and the second light source 120 can adopt a linear cold cathode fluorescent lamp ((7) fluorescent lamp, CCFL), as shown in FIG. 2A~pain-, υ r/y No. In addition, the first light source 110 and the second light source 120 may also adopt a light emitting diode, and the light source 110 is also driven by a scan type, as shown in FIG. 3a to 3d~/_, the first light source and the second light source. The light source 12A can also adopt a cold cathode: a surface light, and the first light source 110 is also driven by a scan type, as shown in the case of Dingda. Of course, the first light source 110 and the second light source l. A 4C Light ray. Cut _ cut using hot yin garden... A... The backlight module of the 焉呃 example is also a schematic diagram of the change of the lighting state of the bean. Please refer to Figures 2A~2n, '' ', ~ 5C, although in Figure 2A~ The scanning of the first light source 11 in 2D is an example of a horizontal change, but the first direction of the backlight module of the present invention is ^ The sweep of the nine source 110 13 1287675 17894twf.doc / g The aiming direction can also be changed in the vertical direction as shown in Figures 5A to 5C. In addition, the arrangement area of the light source 120 is not limited to the first light source 11 , the bottom, the left, the right, and the like, and even the second light source 12 〇 can be arranged in the middle of the first light source 110, depending on the configuration of the static surface and the dynamic surface. For example, if shown in FIG. 5A The configuration method is suitable for displaying the static surface below and the dynamic surface at the top.
圖6A〜6C疋採用U型冷陰極螢光燈管做為光源之點 _ 亮狀態的變化示意圖，而圖7〜9為另外三種採用u型冷 陰極螢光燈管的排列不意圖。請參照圖6A〜6C，第一光 源110與第 <一光源120也可採用U型冷陰極榮光燈管，且 第一光源110同樣採用掃瞄式驅動，如圖6A〜6C所示。 當然，u型冷陰極螢光燈管的排列方式也不侷限如圖6A 所示，也可將U型冷陰極螢光燈管上下、左右交錯，如同 7〜9所示。 雖然在上述各實施例中，背光模組皆以直下式設計為 例做說明，但本發明之背光模組與液晶顯示器也可採侧邊 入光式設計’且未限定單邊或雙邊入光。請參照圖，其 繪示本發明另一實施例之背光模組的示意圖。本實施例之 背光模組400與圖1之背光模組100的差異在於，背光模 組400更包括一導光板410，其適於配置在一液晶顯示面 板(未繪示)下方，而多個第一光源420與多個第二光源43〇 則排列於導光板410之入光側旁。第一光源420與第二光 源430所發出之光線是由入光側進入導光板41〇，再經由 導光板410之作用而轉換為面光源，以提供液晶顯示面板 14 doc/g 之所需。此外，第一光源420與圖1之第一光源u0相似， 而第二光源430與圖1之第二光源120相似，在此即不再 贅述。6A to 6C are schematic views showing changes in the state of the U-type cold cathode fluorescent lamp as a light source, and Figs. 7 to 9 are other arrangements in which the u-type cold cathode fluorescent lamp is arranged. Referring to FIGS. 6A-6C, the first light source 110 and the first light source 120 may also be U-shaped cold cathode glory tubes, and the first light source 110 is also driven by a scan type, as shown in FIGS. 6A-6C. Of course, the arrangement of the u-type cold cathode fluorescent tubes is not limited as shown in Fig. 6A, and the U-shaped cold cathode fluorescent tubes can also be staggered up and down, left and right, as shown in Figs. In the above embodiments, the backlight module is described by taking a direct-lit design as an example. However, the backlight module and the liquid crystal display of the present invention can also adopt a side-in-light design and do not define single-sided or bilateral light. . Referring to the drawings, a schematic diagram of a backlight module according to another embodiment of the present invention is shown. The difference between the backlight module 400 of the present embodiment and the backlight module 100 of FIG. 1 is that the backlight module 400 further includes a light guide plate 410, which is adapted to be disposed under a liquid crystal display panel (not shown), and multiple The first light source 420 and the plurality of second light sources 43 are arranged next to the light incident side of the light guide plate 410. The light emitted by the first light source 420 and the second light source 430 enters the light guide plate 41 from the light incident side, and is converted into a surface light source by the action of the light guide plate 410 to provide the liquid crystal display panel 14 doc/g. In addition, the first light source 420 is similar to the first light source u0 of FIG. 1, and the second light source 430 is similar to the second light source 120 of FIG. 1, and will not be described again herein.
請再參照圖1，本發明之液晶顯示器的驅動方法是在 液晶顯示面板200同時顯示靜態畫面與動態晝面時，以一 掃描頻率驅動位於動態晝面下方之第一光源110的明滅， 而驅動位於靜態晝面下方之苐—光源120保持在點免狀 態。另外，動態晝面下方之第一光源U0與靜態晝面下方 之第二光源120的亮度可不同。再者，液晶顯示面板200 之第一顯不區S30與第二顯不區S40可採用不同的迦瑪曲 線控制。 圖11為本發明一實施例之液晶顯示器的電路方塊 圖。請參照圖11，由於配備了兩個反相器no與T2〇，因 此可由反相Is 110以一掃描頻率驅動第一光源之明 滅，=由反相器120控制第二光源L20保持在點亮狀態。Referring to FIG. 1 again, in the liquid crystal display panel 200, when the static image and the dynamic surface are simultaneously displayed, the first light source 110 located under the dynamic surface is driven at a scanning frequency to be driven. The light source 120, located below the static surface, remains in the point-free state. In addition, the brightness of the first light source U0 below the dynamic facet and the second light source 120 below the static facet may be different. Furthermore, the first display area S30 and the second display area S40 of the liquid crystal display panel 200 can be controlled by different gamma curves. Figure 11 is a circuit block diagram of a liquid crystal display according to an embodiment of the present invention. Referring to FIG. 11, since two inverters no and T2 are provided, the first source can be driven by the inversion Is 110 at a scanning frequency, and the second source L20 is controlled to be lit by the inverter 120. status.
綜上所述，在本發明之背光模組、液晶顯示器盥液晶 =的：法中，由於背光模組的部分光源是:咖 方式進订，轉’㈣分柄則是麟在 僅可改善㈣晝_拖影縣，還可減少靜^面^^ 光源的電力雜以及光源壽命減少的疑A。—面下方之 限定=發=?=揭露如I然其並非用以 和範圍内，當可作些許之:在不脫離本發明之精神 範圍當視後附之申請專利者::本發明之保護 15 【圖式簡單說明】 圖1為本發明一實施例之液晶顯示器的剖面示意圖。 圖2A〜2D為圖1中光源之點亮狀態的變化示音曰 變化是採用發光二極體做為先源之點亮^的 狀態=:採_極螢光平*燈做為光源之點亮In summary, in the backlight module, the liquid crystal display, and the liquid crystal display method of the present invention, since part of the light source of the backlight module is: the coffee mode is ordered, the turn of the (4) split handle is only improved by the forest (4)昼_拖影县, can also reduce the static power of the ^^ light source and the suspected A of the light source life reduction. - The definition of the invention is as follows: = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = 15 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing a liquid crystal display according to an embodiment of the present invention. 2A to 2D are diagrams showing changes in the lighting state of the light source of Fig. 1. The change is the state in which the light-emitting diode is used as the source of the light ^ state: the light-emitting light is used as the light source
圖5A〜5C繪示為本發明另一實施例 源之點亮狀態的變化示意圖。 先杈、、且/、光 做為光源之點 圖6A〜6C是採用U型冷陰極螢光橙答 党狀態的變化示意圖。 示意圖 圖7〜9為另外三種制U型冷陰極螢光燈管的排列 圖10繪示本發明另一實施例之背光模組的示意圖。 圖11為本發明一實施例之液晶顯示器的電路方塊圖 【主要元件符號說明】5A to 5C are diagrams showing changes in lighting state of a source according to another embodiment of the present invention. First, 且, and /, light as a point of light source Figure 6A ~ 6C is a schematic diagram of the change in the state of the U-shaped cold cathode fluorescent orange. 7 to 9 are arrays of three other U-type cold cathode fluorescent lamps. FIG. 10 is a schematic view of a backlight module according to another embodiment of the present invention. 11 is a circuit block diagram of a liquid crystal display according to an embodiment of the present invention.
1000 :液晶顯示器 100、400 :背光模組 110、420 :第一光源 120、430 ·•第二光源 130 :光源驅動電路 140 :擴散板 150 :燈箱 200 ·液晶顯示面板 ^ I287675fdoc/g 210 :顯示驅動電路 300 ··外殼 410 :導光板 S10 :第一區域 S20 :第二區域 S30 :第一顯示區 S40 :第二顯示區 110、120 :反相器 L10 :第一光源 L20 ·•第二光源1000 : Liquid crystal display 100 , 400 : backlight module 110 , 420 : first light source 120 , 430 • second light source 130 : light source driving circuit 140 : diffusing plate 150 : light box 200 · liquid crystal display panel ^ I287675fdoc / g 210 : display Driving circuit 300 · · housing 410 : light guide plate S10 : first area S20 : second area S30 : first display area S40 : second display area 110 , 120 : inverter L10 : first light source L20 · second light source
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