1282962 九、發明說明 【發明所屬之技術領域】 s本發明是有關於一種應用於顯示器之系統與方法，且特 別是有關於一種使背光燈管控制訊號與影像訊號同相位之 糸統與方法。 【先前技術】 目前，以液晶顯示技術所製成之電視與顯示器被大量地 生產，已經逐漸取代傳統式之陰極射線管（Cath〇de Ray =be^CRT)所製之電視與顯示器。然而，相較於陰極射線 官，目前之液晶顯示技術仍然存在尚待克服與改進的缺失盥 限制。 習知之掃描式背光（Scan Backlight)技術係用來讓存留 式（Hold Type)之顯像方式的液晶顯示器，得以有效地模擬 陰極射線管之脈衝式（Impulse type)顯像方式，將液晶顯示 器内的背光燈管間歇地開啟、關閉，以減少液晶之顯像時 間，即降低人眼所感受到之殘留影像（AfterImage)，並搭配 過載驅動（Over Drive)法將灰階響應時間縮短至少一個晝面 (Frame)的時間，來改善液晶顯示器的動態影像品質。 然而，習知之掃描式背光技術會面臨到背光燈管開關時 間與影像顯示時間不同相位的問題。由於在製程與成本考量 前提下，無法使每個像素具有其所屬之背光燈管來控制像素 的焭、滅，因此一般液晶顯示器普遍設置一定數量之燈管， 且藉由控制訊號依序地控制背光燈管之亮、滅。 5 1282962 = ’其係繪示習知之掃描式Μ模組示意 圖。：圖中之應用例係假設利用掃描式背光技術將整個 顯“面/刀成四個影像區域，每一個影像區域面積係由設置 於該影像區域下的背光燈f 1G4a、iQ4b、购或购所涵 正上方之所有像素做亮、滅的同相位處理，即稱為同相（In Phase)，而影像區域102之其他列上的像素則皆為反相（⑽ Phase)，因為像素與像素之間的顯示時間較短，因此只考慮 垂直方向之每一像素列。 蓋之耗圍來決定。目為影像訊號的傳輸方式為漸進式 π0—6)’所以當欲顯示影像區域⑽時，背㈣管！ 04b 即會猎由背光燈管的控制訊號來開啟。然:而，從影像區域 102中的第-點像素顯示至此影像區域⑽之最終點像素顯 示，其間會有一段延遲時間；另夕卜’由於液晶本身特性限制， 每次灰階改變時，其灰階亮度係以步進方式依序改變，因此 從-灰階值跳到另一灰階值亦需要一段響應時間(―㈣ Time)。所以背光燈管1〇仆開啟之時間只能針對該背光燈管 請再參照第lb圖、第lc圖，第i b圖係緣示液晶訊號 與背光燈管控制訊號示意圖，第lc圖係繪示液晶訊號與背 光燈笞控制訊號乘積示意圖。第1 b圖中係以像素由灰階值 155變化至灰階值160為例，像素由顯示初始灰階值155至 目標灰階值160期間，會經過一段響應時間15〇b，此響應 時間可藉由過載驅動縮小至少一個畫面時間。若接下來之另 一個像素同樣自初始灰階值155改變至目標灰階值16〇時， 因為影像訊號是漸進示顯示，因此就會與前述像素之間造成 1282962 一段延遲時間165。若背光燈管控制訊號丨7〇於開啟週期 1 5Ob期間，液晶灰階值已達到目標灰階值丨6〇，則為同相 ' phase)，如第1c圖中之同相乘積波形180所示。接著，考 、 慮反相（Out Phase)情況，即背光燈管控制訊號17〇於開啟週 期1 50b其間，此時液晶之灰階值尚未達到目標灰階值丄 而仍在響應時間内，但此時背光燈管已開啟，因此影像顯示 會產生所謂的’’鬼影’’（Ghosting)現象，如第ic圖中反相乘積 - 波形1 82中之反相波形1 84所示。 β 因此，背光燈管與影像訊號無法達到同相位的情況，會 進而導致動畫品質下降。此種情形，於大尺寸之液晶電視 (LCD TV)或液晶顯示器（LCD Monitor)上會更加明顯，因此 有必要針對此種情況來加以處理，以提高動畫品質。 【發明内容】 因此本發明的目的就是在提供一種影像顯示系統與提 鬲影像顯示品質的方法，至少能夠達成下述之所有目的中之 _任一者。 本發明的目的就是在提供一種影像顯示系統與提高影 像顯示品質的方法，利用事先測量之增益係數值來調整每一 • 個影像區域中各像素的驅動電壓，使得每一影像區域内的各 • 像素的影像訊號與背光燈管之控制訊號達到同相位，進而提 昇動畫品質’且本發明不但能應用於背光模組為冷陰極螢光 燈管（CCFL)或發光二極體（LED)的液晶顯示器、液晶電視， 而且月b應用於資訊技術（Information Technology ; it)之掃描 7 1282962 產品。 本發明的又一目的是在提供一 与偾鹿-口所ΛΛ 種〜像顯示糸統與提高 〜像，、、、貝不口口貝的方法，用以改盖 r ΑΛ . 負不裔之影像響應時間 (〇vmg Picture Response Time ； MPRT ^ ^ ^ 幕具有較佳的動態品質。 MPRT)，使得整個顯示營 本發明的次一目的是在提供一 影像顯示品質的方法，可用於處轉析;統與 =高 =決公善背光燈管之控制訊號與二=相 本發明的再一目的是在提供一種影像顯示系统盘提古 影像顯示品質的方法，用於在成本考量下，不需增加背光： =相驅動電路(即不需增加影像區域)，應用本發明亦能輕 易地獲得甚佳之動書品質，並可同眭、翁 二 一 τ同時適用於掃描式背光系統1282962 IX. Description of the Invention [Technical Field of the Invention] The present invention relates to a system and method for use in a display, and more particularly to a system and method for making a backlight control signal and a video signal in phase. [Prior Art] At present, televisions and displays made by liquid crystal display technology are mass-produced, and televisions and displays made by conventional cathode ray tubes (Cath〇de Ray = be^CRT) have been gradually replaced. However, compared to cathode ray officers, current liquid crystal display technologies still have limitations that are yet to be overcome and improved. The conventional Scan Backlight technology is used to enable the liquid crystal display of the Hold type to effectively simulate the pulsed type of cathode ray tube. The backlight tube is turned on and off intermittently to reduce the liquid crystal display time, that is, to reduce the residual image perceived by the human eye (AfterImage), and to reduce the gray-scale response time by at least one surface with the Over Drive method. (Frame) time to improve the dynamic image quality of the LCD. However, the conventional scanning backlight technology faces the problem that the backlight switch time and the image display time are different. Due to the process and cost considerations, each pixel cannot have its own backlight tube to control the pixel's smashing and extinguishing. Therefore, a general number of lamps are generally set in the liquid crystal display, and are controlled sequentially by the control signal. The backlight tube is lit and off. 5 1282962 = 'The figure shows the schematic of the scanning Μ module. The application example in the figure assumes that the entire surface of the image is formed into four image areas by using the scanning backlight technology. Each image area is made up of backlights f 1G4a, iQ4b, purchased or purchased under the image area. The in-phase processing of all the pixels above the culvert is called in-phase, and the pixels on the other columns of the image area 102 are inversion ((10) Phase), because pixels and pixels The display time between the two is short, so only consider each pixel column in the vertical direction. The cover is determined by the distance. The transmission of the image signal is progressive π0-6)' so when the image area (10) is to be displayed, the back (4) Tube! 04b will be hunted by the control signal of the backlight tube to turn on. However, from the first-point pixel display in the image area 102 to the final point pixel display of the image area (10), there will be a delay time;夕卜' Due to the limitations of the liquid crystal itself, the grayscale brightness changes sequentially in a stepwise manner each time the grayscale changes, so a jump from the grayscale value to another grayscale value also requires a response time ((4) Time). The backlight tube 1 servant can only be turned on for the backlight tube. Please refer to the lb diagram and the lc diagram. The ib diagram shows the LCD signal and the backlight tube control signal diagram. The lc diagram shows the LCD. The signal is combined with the backlight 笞 control signal. In Figure 1 b, the pixel is changed from the grayscale value 155 to the grayscale value 160. The pixel passes through the display of the initial grayscale value 155 to the target grayscale value of 160. A response time of 15 〇 b, this response time can be reduced by at least one picture time by overload drive. If another pixel is also changed from the initial gray level value 155 to the target gray level value of 16 ,, because the image signal is progressive The display will cause 1,282,962 a delay time 165 with the aforementioned pixels. If the backlight control signal 丨7〇 during the on period of 1 5Ob, the liquid crystal grayscale value has reached the target grayscale value 丨6〇, then In phase 'phase', as shown by the in-phase product waveform 180 in Figure 1c. Next, consider the Out Phase condition, that is, the backlight tube control signal 17 is in the turn-on period 1 50b, at this time, the liquid crystal gray The order value has not yet reached the target gray level value and is still in the response time, but the backlight tube is turned on, so the image display will produce the so-called 'ghosting' phenomenon, as in the ic diagram Product - The inverted waveform in waveform 1 82 is shown as 84. β Therefore, the backlight tube and the image signal cannot reach the same phase, which in turn leads to a decrease in the quality of the animation. In this case, a large-size LCD TV (LCD) TV) or liquid crystal display (LCD Monitor) will be more obvious, so it is necessary to deal with this situation to improve the quality of animation. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an image display system and an improved image. The method of displaying quality can at least achieve any of the following objectives. The object of the present invention is to provide an image display system and a method for improving the image display quality, which use the gain coefficient values measured in advance to adjust the driving voltage of each pixel in each image area, so that each image area is The image signal of the pixel is in phase with the control signal of the backlight tube, thereby improving the animation quality. The invention can be applied not only to the liquid crystal of the cold cathode fluorescent lamp (CCFL) or the light emitting diode (LED). Display, LCD TV, and month b is used in Information Technology (IT) scanning 7 1282962 products. Another object of the present invention is to provide a method for displaying a scorpion with an elk-mouth, a display system, and an improvement of the image, the image, and the like, for modifying the r ΑΛ. The image response time (〇vmg Picture Response Time; MPRT ^ ^ ^ screen has better dynamic quality. MPRT), so that the second purpose of the entire display is to provide an image display quality method, which can be used for analysis And the control signal and the second phase of the backlight tube are further provided to provide an image display system for displaying the image quality of the ancient image, which is used for cost consideration without increasing the cost. Backlight: = phase drive circuit (ie no need to increase the image area), the application of the invention can easily obtain the best quality of the book, and can be applied to the scanning backlight system at the same time.
Wean BackHghO以外的其他背光系統，例如：瞬間背光 系統（Flash Backlight)。 一口 ：據本發明上述目的其中之任一，提出一種提高影像顯 不口口貝的方法，至少包含提供影像控制訊號、提供至少一光 源所區分之影像區域、獲得數個第一增益係數值、進行動態 補侦。影像控制訊號係至少包括垂直同步訊號。至少一光源 所區分之影像區域係包含數個像素，且每一像素接收一影= 汛號以影示影像。此數個第一增益係數值係由每一光源所區 分之影像區域内之像素與每一光源之位置關係所決定。進行 動態補償之步驟而獲得補償晝面，而此補償晝面係分別由每 一光源所區分之影像區域内每一像素接收之影像訊號與第 8 1282962 一增益係數值做一運算而計算出。 根據本發明之另一目的，本發明之提高影像顯示品質的 方法至少包含提供影像控制訊號，其中此影像控制訊號至少 包括垂直同步訊號，且此影像訊號依時序產生第一畫面訊 號、第二畫面訊號；提供至少一光源所區分之影像區域；儲 存第一晝面訊號至圖框緩衝暫存區（Frame Buffer);根據垂 直同步訊號而對照到數個第一增益係數值，其中每一第一增 益係數值係由每一光源所區分之影像區域内數個像素與每 光源之位置關係所決定；進行過載驅動法，利用第一書面 訊號和第二畫面訊號對照到一個過載驅動對照表，來獲得第 三晝面訊號；進行動態補償，來獲得補償晝面，其中此補償 畫面係由第三晝面訊號與第一增益係數值做一運算而計= 本發明之系統至少包含影像訊號產生單元、至少一光 源三圖框緩衝暫存區、過載驅動對照表、增益係數對照表和 運异早7G。影像訊號產生單元剌以產生影像控制訊號，而 ，影像控制訊號至少包括垂直同步訊號，且此影像訊號產生 早兀依時序產生第一晝面訊號、第—佥 用0八1 / 弟一旦面°孔旒。每-光源係 -刀出一影像區域。圖框緩衝暫存區則係用以儲存 載驅動對照表係根據第二晝面訊號與儲存於圖 忙緩衝暫存區之第一晝面訊號，來產生第三晝… 係數對照表係根據輸入之垂直〜曰a 個增^號來决疋相對應之數 係數，、中母一增益係數係由每一光源所區分之与 °°域内之數個像素與每—光源之位置關係所決定。運算=元 9 1282962 係—將對應之第一增益係數值與第三晝面訊號進行運算，而 計算出補償晝面。 口此’應用本發明能改善鬼影現象、進而提昇動畫品 質，且當顯示裝置之解析度較高時或在成本考量下，不需增 加背光源的分相驅動電路，應用本發明亦能輕易改善影像之 動態品質。 【實施方式】 本發明係利用所量測出之增益係數值（Gain Coefficients ; Gp)來調整背光燈管所涵蓋之影像區域的像素 灰階’進而使背光燈管之控制訊號與影像區域的每一條像素 列之影像訊號達到同相位，以避免反相（〇ut phase)現象，進 而提昇動晝品質。 為了使本發明之敘述更加詳盡與完備，可參照下列描述 並配合所附圖式，然而，以下所述之應用於背光模組為冷陰 極螢光燈管（Cold Cathode Fluorescent Lamp ; CCFL)之液晶 顯示器僅用以舉例說明，本發明亦可應用於背光模組為發光 二極體（Light Emitted Diode ; LED)的液晶顯示器、液晶電 視或資訊技術（Information Technology ; IT)之掃描產品，故 本發明並不在此限。Other backlight systems other than Wean BackHghO, such as Flash Backlight. According to one of the above objects of the present invention, a method for improving image display is provided, which at least includes providing an image control signal, providing an image region distinguished by at least one light source, obtaining a plurality of first gain coefficient values, Perform dynamic reconnaissance. The image control signal includes at least a vertical sync signal. The image area distinguished by at least one light source includes a plurality of pixels, and each pixel receives a shadow = apostrophe to visualize the image. The plurality of first gain coefficient values are determined by the positional relationship of the pixels in each of the image regions distinguished by each light source and each of the light sources. The compensation step is performed by performing a dynamic compensation step, and the compensation surface is calculated by performing an operation on the image signal received by each pixel in the image region distinguished by each light source and the gain coefficient value of the 8th 1282962. According to another aspect of the present invention, a method for improving image display quality of the present invention includes at least providing an image control signal, wherein the image control signal includes at least a vertical synchronization signal, and the image signal generates a first picture signal and a second picture according to timing a signal area; providing at least one image area distinguished by the light source; storing the first side surface signal to the frame buffer temporary buffer area (Frame Buffer); and comparing the plurality of first gain coefficient values according to the vertical synchronization signal, wherein each of the first The gain coefficient value is determined by the positional relationship between several pixels in the image area distinguished by each light source and each light source; the overload driving method is used to compare the first written signal and the second picture signal to an overload driving comparison table. Obtaining a third kneading signal; performing dynamic compensation to obtain a compensation picture, wherein the compensation picture is calculated by the third kneading signal and the first gain coefficient value = the system of the present invention includes at least the image signal generating unit At least one light source three frame buffer temporary storage area, overload driving comparison table, gain coefficient comparison table and different operation 7G. The image signal generating unit generates an image control signal, and the image control signal includes at least a vertical sync signal, and the image signal generates the first side signal according to the timing, and the first time is 0. Kong Tong. Each light source system - an image area is cut out. The frame buffer temporary storage area is configured to store the load driving reference table according to the second side signal and the first side signal stored in the busy buffer temporary storage area to generate the third 昼... The coefficient comparison table is based on the input The vertical ~ 曰 a increase ^ number to determine the corresponding number coefficient, the middle mother - a gain coefficient is determined by each light source and the positional relationship between the number of pixels in the ° ° domain and each light source. Operation = Element 9 1282962 - Calculates the compensation plane by calculating the corresponding first gain coefficient value and the third surface signal. The application of the present invention can improve the phenomenon of ghosting, thereby improving the quality of the animation, and when the resolution of the display device is high or under the consideration of cost, it is not necessary to increase the phase-separated driving circuit of the backlight, and the invention can be easily applied. Improve the dynamic quality of images. [Embodiment] The present invention utilizes the measured gain coefficient value (Gain Coefficients; Gp) to adjust the pixel gray level of the image area covered by the backlight tube, thereby making each control signal and image area of the backlight tube The image signals of one pixel column reach the same phase to avoid the 〇ut phase phenomenon, thereby improving the quality of the dynamics. In order to make the description of the present invention more detailed and complete, reference may be made to the following description and the accompanying drawings. However, the backlight module described below is a liquid crystal of a cold cathode fluorescent lamp (CCFL). The display is only for exemplification, and the present invention can also be applied to a liquid crystal display in which the backlight module is a Light Emitted Diode (LED), a liquid crystal television or a scanning technology of Information Technology (IT), so the present invention Not limited to this.
請參照第2圖，其係繪示依照本發明一較佳實施例之提 高影像顯示品質方法的流程圖。首先，提供影像控制訊號（步 驟200) ’此影像控制訊號係一連續的訊號，包含數個晝面 之顯示内容，且於影像訊號中更至少包含垂直同步訊號（V 1282962Please refer to FIG. 2, which is a flow chart showing a method for improving image display quality according to a preferred embodiment of the present invention. First, an image control signal is provided (step 200). The image control signal is a continuous signal, and includes a plurality of display contents, and at least a vertical synchronization signal is included in the image signal (V 1282962).
Sync) ’垂直同步訊號係用以決定晝面之影像像素列的垂直 方向或位置）。接著，於液晶顯示器晝面上提供至少一光 源所涵蓋之影像區域（步驟搬），如第u圖所示，光源祕 所：盍之影像區域102 ’其中影像區域1〇2包含數個像素， 且每像素接收-影像訊號而來顯示影像。然而，此光源係 冷陰極螢光燈管或發光二極體，本發明並不在此限，此光源 於下文中皆稱為背光燈管’且設置於液晶顯示器面板之下。 接著，進行步驟204,提供至少—背光燈管控制訊號。 接著，進行量測步驟（步驟206)。請參照第3圖，其係 繪示：照本發明一較佳實施例的量測增益係數波形示意 圖。第3圖中之量測波形25〇、反轉波形252、理想波形 的X軸係增益係數（Gp)值、y軸係影像區域1〇2的垂直方向 (或位置）理想波形254係欲獲得之情況，即於此影像區 域102之所有像素其影像訊號與背光燈管之控制訊號達到 同相（In phase)’所以此影像區域1〇2内所有增益係數（Gp) 值透過影像區域102中之每一條像素列影像訊號與背 光燈管1 04b之控制訊號的相位關係，進而量測出量測波形 250，其中影像區域1〇2的數條像素列只有位於背光燈管 l〇4b之上的像素列的第一增益係數（Gp)值為丨，而影像區域 内其餘像素列的第一增益係數（Gp)值皆小於1，為了補償此 影像區域102中小於1的增益係數值，而達到如理想波形 254之情況’因此將量測波形25〇中之第一增益係數（Gp)值 進行一逆轉換（Inverse)而獲得第二增益係數（Gp)值，如反轉 波形252所示，此時所有第二增益係數（Gp)值皆大於i，因 11 1282962 此第一增益係數值係由每一弁调 夸盥I丄 光/原所區分之影像區域内之像 素與母一光源之位置關係所決定。 接著’進行步驟208之動離補栲 區域中之因一推本^ .彳貝。此步驟係將每個影像 0寺愈牛·。 ’、的所有像素資料於垂直同步訊號觸發 時與步驟206所量測出之第一辦兴 嬅尸、靈狄仏 扣之弟一^盃係數（GP)值做一運算，而 -于運异後之數個影像區域所組成的補償畫面。 接著，料參照第4圖，其料轉 施例之系統的方塊示意圖。首 u季乂“ 390 ^^ ^ 糟由衫像訊號產生單元 直同^番吉― 號’而此影像控制訊號至少包括垂 方向。位二步Γ#ϋ#用以決定晝面之影像像素列的垂直 ^ ^ )。影像控制訊號於前次運算時，產生第一書 虎un且將此第—晝面訊號儲存於圖框緩衝暫存區(Frame ^ ΓΓ而影像控制訊號於此次運算時，產生第二書面 時：至:㈣儲存於圖框緩衝暫存區400中之第-晝面訊號同 ==動對照表•第一晝面訊號與第二畫面訊號 照表402之對照，而產生第三晝面訊號。當 於針日1二^觸發時’可得液日日日顯示器對應之垂直位置，並 於㈣表偏中挑選出所對應之第―增^係數值，再透過乘 法'406與第三晝面訊號做一運算，以計算出補償苎面。 為讓本發明之述敘能更加詳盡與完備，下文特舉旦兩個應 匕：配合第5Α圖、第5Β圖、第6Α圖以及第紐圖之 回不Λ洋加說明。而本發明之兩個應用例係分別以6〇 Ηζ 之圖框率（Frame Rate)與四根背光燈管來區分出四個影像區 域和60 Hz之圖框率與八根背光燈管來區分出八個影像區 12 1282962 域。因此，此兩個應用例之每一個影像區域的顯示週期係分 別為4 ms和2 ms’然、而以上所述僅用以方便舉例說明故 本發明並不在此限。 實施例一 請同時參照第5A圖和第5B圖，其係繪示依照本發明 之應用例-之-種增益補償波形示意圖。此應用例之影像區 -域共有八個且每一影像區域顯示週期係2 ms，300a和30〇b -·為背光燈管之控制訊號（三角波）與像素灰階變化（灰階上升 或下降）的反相（Out Phase)波形。第5A圖中3〇2a和3〇孔 係為背光燈管波形與像素灰階之乘積波形。3〇乜和3〇补係 此像素之模糊邊緣曲線（Blur Edge Curve)，其中模糊邊緣時 間（Biur Edge Time ; BET)係灰階值的響應上升時間（Rising Time# 10%變到90%和響應下降時間（FaUingTime)由9〇 %變到10%的總和時間，模糊邊緣時間—般係用來評估動 晝。口負，杈糊邊緣時間越小，殘影時間越短，因此動畫品質 藝越好。304a、304b係代表尚未將本發明之第二增益係數（Gp) 值補償至此應用例之波形，其模糊邊緣時間⑺Ετ)係i 7 ms。而第 5B 圖中之 306a、306b、308a ' 308b、310a 和 310b -係透過本發明之第二增益係數（Gp)值補償與過載驅動Sync) 'Vertical sync signal is used to determine the vertical direction or position of the image pixel column on the side). Then, at least one image area covered by the light source is provided on the surface of the liquid crystal display (step moving), as shown in FIG. u, the source of the light source: the image area 102 of the image area, wherein the image area 1〇2 includes several pixels. And the image is displayed every pixel receives the image signal. However, the light source is a cold cathode fluorescent lamp or a light emitting diode, and the present invention is not limited thereto. This light source is hereinafter referred to as a backlight tube and is disposed under the liquid crystal display panel. Next, step 204 is performed to provide at least a backlight control signal. Next, a measurement step (step 206) is performed. Referring to Figure 3, there is shown a schematic diagram of a measurement gain coefficient waveform in accordance with a preferred embodiment of the present invention. The measured waveform 25〇, the inverted waveform 252, the X-axis gain coefficient (Gp) value of the ideal waveform, and the vertical direction (or position) ideal waveform 254 of the y-axis image area 1〇2 are obtained in FIG. In this case, all the pixels of the image area 102 have the image signal and the control signal of the backlight tube reach the in phase. Therefore, all the gain coefficient (Gp) values in the image area 1〇2 are transmitted through the image area 102. The phase relationship between each pixel column image signal and the control signal of the backlight tube 104b, and then the measurement waveform 250 is measured, wherein the pixel columns of the image area 1〇2 are only located above the backlight tube l〇4b. The first gain coefficient (Gp) value of the pixel column is 丨, and the first gain coefficient (Gp) values of the remaining pixel columns in the image region are all less than 1, in order to compensate for the gain coefficient value of less than 1 in the image region 102. As in the case of the ideal waveform 254, the first gain coefficient (Gp) value in the measurement waveform 25A is thus inverse transformed (Inverse) to obtain a second gain coefficient (Gp) value, as indicated by the inverted waveform 252, All second gain coefficients at this time GP) are greater than the value of i, because the positional relationship between the pixel and the base of a light source within the image area 111,282,962 this first gain coefficient value based Bian distinguished by each of the gray tone boast Shang light I / original is determined. Then, proceed to step 208 to remove the cause in the 离 ^ area. This step will make each image 0 temple more cattle. ', all the pixel data is triggered when the vertical sync signal is triggered, and the first set of the 嬅 嬅 、 、 、 、 、 、 、 、 灵 灵 灵 灵 灵 灵 灵 灵 灵 灵 灵 灵The compensation screen composed of several image areas afterwards. Next, reference is made to Fig. 4, which is a block diagram of the system of the embodiment. The first u season 乂 "390 ^ ^ ^ bad by the shirt image signal generating unit directly with the ^ _ _ _ ' and the image control signal at least including the vertical direction. Bit two steps Γ # ϋ # used to determine the image pixel column Vertical ^ ^ ). When the image control signal is used in the previous operation, the first book is ungenerated and the first signal is stored in the frame buffer temporary storage area (Frame ^ ΓΓ and the image control signal is used in this operation) , when the second written time is generated: to: (4) the first-side signal stored in the frame buffer temporary storage area 400 is the same as the == movement comparison table, the first first surface signal is compared with the second picture signal table 402, and The third surface signal is generated. When the needle is triggered by the day of the needle, the corresponding vertical position of the liquid day and day display is selected, and the corresponding value of the first increase coefficient is selected in the (4) surface deviation, and then the multiplication method is adopted. 406 and the third surface signal to do an operation to calculate the compensation plane. In order to make the description of the invention more detailed and complete, the following two special considerations: with the fifth map, the fifth map, the first 6 Α 以及 and the back of the New Zealand are not explained, and the two application examples of the present invention are 6 Frame Frame Rate and four backlights to distinguish the four image areas and the frame rate of 60 Hz and eight backlights to distinguish the eight image areas 12 1282962 domain. Therefore, this The display period of each of the two application areas is 4 ms and 2 ms, respectively, and the above description is only for convenience of description, and the present invention is not limited thereto. For the first embodiment, please refer to FIG. 5A. And FIG. 5B, which is a schematic diagram of a gain compensation waveform according to an application example of the present invention. The application area has eight image area-domains and each image area displays a period of 2 ms, 300a and 30〇. b -· is the out-of-phase waveform of the control signal (triangle wave) of the backlight tube and the gray scale change (gray scale rise or fall) of the pixel. In Fig. 5A, the 3〇2a and 3 pupils are backlight tubes. The product of the waveform and the gray level of the pixel. 3〇乜 and 3〇 complement the Blur Edge Curve of this pixel, where the blur edge time (Biur Edge Time; BET) is the response rise time of the gray scale value (Rising Time# 10% changed to 90% and response fall time (FaUingTi Me) From 9〇% to 10% of the total time, the fuzzy edge time is generally used to evaluate the dynamics. The mouth is negative, the smaller the edge time, the shorter the afterimage time, so the better the animation quality art. 304a 304b represents that the second gain coefficient (Gp) value of the present invention has not been compensated to the waveform of this application example, and the fuzzy edge time (7) Ετ) is i 7 ms. In the 5B diagram, 306a, 306b, 308a ' 308b, 310a And 310b - are compensated and overload driven by the second gain coefficient (Gp) value of the present invention
Drive)法所獲得之結果，其模糊邊緣時間（βετ)係縮小至 mS其中過載驅動法己為此技術領域中任何具有通常 知識者所熟知，故不另贅述。 13 1282962 實施例二 . 再考慮另一情況，減少影像區域數目（即將每個影像區 域之顯示週期加大；即顯示週期4 ms )以觀察之。請再同 ’時參照第6A圖和第6B圖，其係繪示依照本發明之應用例 二之一種增益褚償波形示意圖。第6A圖之32〇a、320b、 322a、322b、3 24a和3 24b係尚未將本發明之第二增益係數 (Gp)值補彳貝至此應用例時之波形，其模糊邊緣時間（bet)係 • 18·4 ms。而第 6B 圖之 326a、326b、328a、328b、33〇a 和 ’ 33Gb 過本發明之第二增益係數（Gp)值補償與過載驅動 (Over Dnve)法之結果，其模糊邊緣時間（BET)係縮小至ΐ3·8 ms，因此應用本發明之系統與方法，可顯著地縮短模糊邊 緣時間（BET)。 由上述本發明較佳實施例可知，應用本發明即能輕易地 將背光模組中每一背光燈管所涵蓋之影像區域中之每一點 像素的衫像控制訊號與背光燈管控制訊號 ㈣鬼影現象、提昇動畫品質，且當顯示裝置之垂直解= 時或在成本考量下，不需增加顯示裝置之背光源的分相 驅動電路，應用本發明即能輕易改善影像之動態品質，且改 善影像響應時間（MPRT)，影像響應時間係模糊邊 (bet)之平均值。 雖然本發明已以一較佳實施例揭露如上，然其並非用以 2本發明’任何熟習此技藝者，在不脫離本發明之精神和 =圍内，當可作各種之更動與潤飾，因此本發明之保護範圍 田視後附之申請專利範圍所界定者為準。 14 1282962 【圖式簡單說明】 為讓本發明之上述和其他 的、特徵、和優點能更明顯 易懂，所附圖式之詳細說明如下· 彳炎”、·占此更月，、、、員 第1 a圖係繪示習知之掃# 4、北 描式月光模組示意圖。 第1b圖係繪示液晶訊號與背光燈管控制訊號示意圖。 第1c圖係繪示液晶訊號與背光燈管控制訊號乘積示意 圖0 第2圖係繪不依照本發明一較佳實施例之提高影像顯 示品質方法的流程圖。 第3圖係繚示依照本發明一較佳實施例的量測增益係 數波形示意圖。 弟4圖係繪示依照本發明一較佳實施例之系統的方塊 示意圖。 第5 A圖、第5 B圖係繪示依照本發明之應用例一之一 種增益補償波形示意圖。 第6A圖、第6B圖係繪示依照本發明之應用例二之一 種增益補償波形示意圖。 【主要元件符號說明】 102 :影像區域 104a、104b、104c、104d:背光燈管 150a、150b、150c :響應時間 15 5 :起始灰階值 15As a result of the Drive method, the fuzzy edge time (βετ) is reduced to mS. The overload driving method has been well known to anyone of ordinary skill in the art, and will not be described again. 13 1282962 Embodiment 2 . Consider another case, reducing the number of image areas (that is, increasing the display period of each image area; that is, displaying the period of 4 ms) to observe. Referring to FIG. 6A and FIG. 6B, a schematic diagram of a gain compensation waveform according to application example 2 of the present invention is shown. 32A, 320b, 322a, 322b, 3 24a and 3 24b of Fig. 6A are waveforms of the second gain coefficient (Gp) of the present invention which have not yet been added to the application example, and the blurred edge time (bet) Department • 18.4 ms. And 326a, 326b, 328a, 328b, 33〇a and '33Gb of FIG. 6B are the result of the second gain coefficient (Gp) value compensation and Over Dnve method of the present invention, and the fuzzy edge time (BET) The system is reduced to ΐ3·8 ms, so the fuzzy edge time (BET) can be significantly shortened by applying the system and method of the present invention. According to the preferred embodiment of the present invention, the application of the present invention can easily control the image control signal of each pixel in the image area covered by each backlight tube in the backlight module and the backlight control signal (4) ghost. The phenomenon of shadowing, improving the quality of the animation, and when the vertical solution of the display device = or cost consideration, the phase-separated driving circuit of the backlight of the display device is not required, and the dynamic quality of the image can be easily improved and improved by applying the invention. Image response time (MPRT), image response time is the average of blurred edges (bet). Although the present invention has been disclosed in a preferred embodiment as described above, it is not intended to be used in any of the present invention, and various modifications and retouchings may be made without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the patent application. 14 1282962 [Brief Description of the Drawings] In order to make the above and other features, advantages and advantages of the present invention more apparent, the detailed description of the drawings is as follows: 彳炎”,···················· The first picture is a schematic diagram of the Xizhi type moonlight module. The first picture shows the LCD signal and the backlight tube control signal. The 1c picture shows the LCD signal and the backlight tube. Control Signal Product Schematic 0 FIG. 2 is a flow chart showing a method for improving image display quality according to a preferred embodiment of the present invention. FIG. 3 is a schematic diagram showing a measurement gain coefficient waveform according to a preferred embodiment of the present invention. Figure 4 is a block diagram showing a system according to a preferred embodiment of the present invention. Figs. 5A and 5B are diagrams showing a gain compensation waveform according to an application example 1 of the present invention. 6B is a schematic diagram showing a gain compensation waveform according to Application Example 2 of the present invention. [Description of Main Component Symbols] 102: Image Regions 104a, 104b, 104c, 104d: Backlight Tubes 150a, 150b, 150c: Response Time 1 5 5 : Starting gray scale value 15