200842786 九、發明說明： 【發明所屬之技術領域】 本發月係關於一種液晶顯示器 關 於使用感溫元件侦測液晶面板之區域溫度·^ 之溫度梯度，藉以調整渦、數疏也+广 了题、夜晶面板 顯示器響應速度 曰曰 …二從㈣^疋過激驅動電壓之驅動系統，提升液 【先前技術】 隨著液晶顯示器之日漸普及，其應 樣，從早期之計算機、電子鐘及收音機“等，到趨於多 ^電腦及電視等’因而傳統之陰極射線管顯示器^漸^ r葬之液晶分子特性，於切換影像資料時’ 付猎由扭轉分子以改變其制方向，故晝面遲延 ^。 而過往應用於電腦時，多半皆以呈現靜態影像為主：則遲延 現象5不明顯。惟應用於電視、遊戲及播放電影時，由於多 f動態影像，晝面遲延會造成影像模糊及對比失真，意即液 晶之響應時間（response time)過慢。針對上述問題，過 激驅動（overdrive)技術遂被發展出以改善液晶之反應速 度，其原理係提高驅動電壓以加速液晶之反應速度，意即改 變液晶顯示器中供給至源極驅動器（s〇urce driver)之電 壓’以刺激液晶分子之扭轉。 請參閱第一圖，係為習知技藝液晶顧示器中像素電廑與 其光線穿透率VI的時序圖。圖中像素電壓係以實線標示， 5 200842786 ，光線穿透率V1係以虛線標示。當液晶顯示器中的— (Pixel)由資料電壓C1a換到資料日' =的，電時會有一個延遲時間，使二 法^ 一個圖框週期（frameperiod)内偏轉到達預二t 以達到預定的光線穿透率。如第一圖所 、夺ς 之後之連績的下一個圖框週期，而如第一沾 VI曲線所示，光線穿透率V1盔法 二/牙、率 ^ …、沄在圖框N的圖框週期中到 广須等到圖框N+2的圖框週期才會到達 =:透率’然而這樣的延遲卻會使液晶顯示器出現殘影 接續，請參閱第二圖，係為習知技薮 、時其像素電壓與其光線穿透率激驅動方法 中的像素由資料電壓C1切換到資料電H虽2顯示器 個過激的資料電壓C3，來加快苴、夜曰八守，精由加入一 第二圖所示，即於資料電遂曰曰；7的反應速度。如 時，先加人_電壓C2電壓C2 更高的資料電壓可使液晶反應^度mm而因為 方法可以使像素的液晶分子在—框曰由h激驅動 預定角度而達到預定的光線穿透率。°如第m即可=轉至 透率V2在圖框N的圖框週__ π &圖^^光線穿 惟上述習知技藝因為是對整 曰 過激資料電壓，對於改善液晶分子的面板中^予相同的 於液晶面板之液晶分子因電壓而效果有限，肇因 因面板各區域中溫度之不同而^所差显轉:，其響應時間會 時間較快’反之則響應時間較慢而斤以溫=高則響應 叫而要車乂強之電壓。為克服 6 200842786 此一問題，又進一步增設一溫度感澍器（thermal sens〇r) 於液晶顯示面板以偵測溫度方式。請參閱第三圖，係為習知 技藝應用於液晶顯示面板之驅動電路之方塊示意圖。此驅動 電路1包含一影像輸入端111、一影像控制單元113、一影 像s己憶體114、一過激驅動查找表Π2、一記憶體控制單元 117、一溫度控制器115、一暫存記憶體116、一時序控制器 (timing controller) 118及一溫度感測器1〇1。溫度感測 器101係設置於一液晶顯示面板10上以根據面板1〇溫度產 生一溫度補償訊號St，影像輸入端Π1係輸入目前資料而 進一步傳輸至過激驅動查找表112及影像控制單元113，則 影像控制單元113接續傳輸目前資料至影像記憶體114存 儲，於目前資料遲延一圖框週期（frameperi〇d)後，自存 儲於影像記憶體114中讀取出並傳送至過激驅動查找表 112,而延遲一圖框週期之目前資料將定義為過去資料，此 ，溫度補償訊號st傳輸至溫度控制器115以使記憶體控制 單το 117根據溫度補償訊號&將存儲於 複數個參數表帽—參數表，並將其舰至職驅動查找ί 112以使過激驅動查找幻12運作調整，並由 < 將調整後所產生之過激驅動電壓值（赂drive code)傳Ϊ 至液晶顯示面板10。 ; 惟液晶顯示面板可能應用在不同之條件及室溫 校過激驅動電壓需等到顯干哭鬥她 為 、、…方士劫- n 開機於一工作溫度或-穩定 ::的面杯:祕r溫度感測器係偵測環境溫度或液晶顯示 域之溫度，執姉溫度’作為面板其他區 声冬本合m ? 動電壓進行補償。而面板之溫 度夕+日有洛i，-般而言面板的上 合 域為高，隨液晶電視尺寸趨^又曰季又下邻q 人才趨向大型化，則溫度梯度變化之差 200842786 距甚為明顯。進而造成 動r梯度變^ 影響。 則衫像清晰度也因此受 有鑑於以上問題。發明人基於多研 經驗，經多方研究設計與專題探討，遂於提 =了器之軸祕以作為改善前述缺失之—實現方式= 【發明内容】 有鑑於上述課題，本發明之目的為提供一種液晶顯示器 之驅動系統’係考慮液晶面板之溫度梯度以補償過激驅動 壓。 緣是，為達上述目的，依本發明之用於液晶顯示器之驅 動系統，係至少包含一液晶面板、一影像記憶體、至少二 • 個暫存記憶體、一影像輸入端、一記憶體控制單元、一麥像 控制單元、一過激驅動查找表、一過激驅動補償單元及一护 序控制器。 ' 液晶面板中具有衩數個驅動元件及一感溫元件，驅動 元件係用以接收一顯示訊號以驅動液晶面板顯示一書面， 感溫元件係用以感應該液晶面板之一溫度。影像記憶體用 以儲存一影像資料；暫存記憶體用以儲存複數筆伽瑪補償 之電壓值。影像輸入端係用以新輸入一筆影像資料。記情 體控制單元係用以根據感溫元件之溫度輸出相對應之伽^ 8 200842786 : 補償之電壓值，並查找輸出影像過激電壓值，及傳遞溫度， ' 影像控制單元係用以提取前一筆影像資料，過激驅動查找 表係用以比較新一筆影像資料與前一筆影像資料，產生一 比較結果值，依據該比較結果值由該記憶體控制單元查找 並讀取相對應之影像過激電壓值補償新一筆影像資料，以 輸出一顯示影像，過激驅動補償單元係用以接收顯示影 像、伽瑪補償之電壓值及溫度，由伽瑪補償之電壓值及溫 度以伽瑪映射（gamma mapping)方式取得對應液晶面板之 _ 範圍之一溫度梯度之上下伽瑪過激補償曲線之過激補償電 壓值’依據過激補償電壓值係補償顯示影像，時序控制器 係用以輸出對應已補償顯示影像之顯示訊號於液晶面板之 驅動元件，驅動元件電性連接至液晶面板之複數條掃描線 及複數條資料線，以控制各像素所需之過激驅動電壓，加 速液晶分子響應時間，提升液晶顯示器響應速度。 進一步地，此驅動系統亦可利用補償資料表獲得各別 區域的至少一個過激補償資料表以補償顯示影像，且此驅 # 動系統更可使用複數個感溫元件以偵測液晶面板之不同區 域溫度並針對對應於個別感溫元件之補償資料表來推導出 與整個液晶面板相應的各別區域的至少一個過激補償次口 表以補償顯示影像之過激驅動電壓。 貝資料 本發明之特點係在於利用伽瑪過激補償之過數 壓值或過激補償資料表，除了可根據不同溫度作補償+，員， 對液晶面板之不同區域提供不同的過激驅動電壓之 更了 精準對應溫度梯度之變化，進而加速液晶分子迦 度，以 改善晝面品質。 為間’及 9 200842786 兹為使貴審查委員對本發明之技術特徵及所達成之 功效有更進一步之瞭解與認識，下文謹提供較佳之實施例及 相關圖式以為辅佐之用，並以詳細之說明文字配合說明如 後0 【實施方式】 為讓本發明之上述目的、特徵、和優點能更明顯易懂， 下文依本發明之用於液晶顯示器之驅動系統，列舉相關實 # 施例，並配合所附相關圖式，作詳細說明如下，其中相同 的元件將以相同的元件符號加以說明。 請參閱第四圖，係為本發明一液晶顯示器之驅動系統之 方，示思圖，其中本系統2〇係包含一液晶面板21、一影像 記憶體（frame memory)22及一暫存記憶體（R〇M)23、一影像 輸入端24、一記憶體控制單元⑽M c〇ntr〇Uer)託、二影 像控制單元（frame meraory contr〇ller)26、一過激驅動= 找表（0D LUT) 27、一過激驅動補償單元（〇D c〇mpensati〇:200842786 IX. Description of the invention: [Technical field of the invention] This is a liquid crystal display for detecting the temperature gradient of the temperature of the liquid crystal panel using the temperature sensing element, thereby adjusting the vortex, the number of sparseness, and the widening , night crystal panel display response speed 曰曰 ... two from (four) ^ 疋 overdrive drive voltage drive system, lift liquid [previous technology] With the increasing popularity of liquid crystal displays, its applications, from early computers, electronic clocks and radios " Etc., tend to more than computer and television, etc. 'The traditional cathode ray tube display ^ gradually bury the liquid crystal molecular characteristics, when switching image data 'pay hunting by twisting molecules to change its direction, so the face delay ^. When used in computers in the past, most of them are based on static images: the delay phenomenon is not obvious. However, when used in TV, games and movies, due to multi-f motion pictures, the delay of the face will cause image blurring and Contrast distortion, meaning that the response time of the liquid crystal is too slow. For the above problems, the overdrive technology is developed. In order to improve the reaction speed of the liquid crystal, the principle is to increase the driving voltage to accelerate the reaction speed of the liquid crystal, that is, to change the voltage supplied to the source driver in the liquid crystal display to stimulate the twist of the liquid crystal molecules. The first figure is a timing diagram of the pixel electrode and its light transmittance VI in the conventional art LCD. The pixel voltage in the figure is indicated by a solid line, 5 200842786, and the light transmittance V1 is indicated by a broken line. When - (Pixel) in the liquid crystal display is changed from the data voltage C1a to the data day '=, there will be a delay time when the power is turned off, so that the deflection in the frame period is reached in the frameperiod to reach the predetermined value. Light penetration rate. As shown in the first figure, the next frame period of the succession after the capture, as shown by the first dip VI curve, the light transmittance V1 helmet method 2 / tooth, rate ^ ..., 沄In the frame period of frame N, it is necessary to wait until the frame period of frame N+2 reaches =: transmittance 'however, such delay will cause the liquid crystal display to appear after the residual image, please refer to the second figure. Is a known technique, when its pixels The pixel in the voltage and the light transmittance driving method is switched from the data voltage C1 to the data power H, although the data voltage C3 of the display is overexcited, to speed up the 苴, 曰 曰 ,, fine by adding a second picture, That is, the data rate of the data 遂曰曰; 7, as the time, first add _ voltage C2 voltage C2 higher data voltage can make the liquid crystal reaction ^ degrees mm because the method can make the liquid crystal molecules of the pixel in the frame The h is driven to a predetermined angle to reach a predetermined light transmittance. ° If the m is the same as the transmissibility V2 in the frame of the frame N _ _ π & ^ ^ ray wear only the above-mentioned conventional skills because The effect is on the voltage of the liquid crystal molecules in the panel for improving the liquid crystal molecules, and the effect is limited due to the difference in temperature in each region of the panel: The response time will be faster. On the contrary, the response time will be slower and the temperature will be higher than the voltage. In order to overcome the problem of 6 200842786, a temperature sensor (thermal sens〇r) is further added to the liquid crystal display panel to detect the temperature mode. Please refer to the third figure, which is a block diagram of a conventional driving circuit applied to a liquid crystal display panel. The driving circuit 1 includes an image input terminal 111, an image control unit 113, an image suffix 114, an overdrive driving lookup table 2, a memory control unit 117, a temperature controller 115, and a temporary memory. 116, a timing controller 118 and a temperature sensor 1〇1. The temperature sensor 101 is disposed on a liquid crystal display panel 10 to generate a temperature compensation signal St according to the temperature of the panel 1 . The image input terminal 输入 1 inputs the current data and further transmits to the overdrive driving lookup table 112 and the image control unit 113. Then, the image control unit 113 successively transmits the current data to the image memory 114 for storage. After the current data is delayed by a frame period (frameperi〇d), it is read from the image memory 114 and transmitted to the overdrive display lookup table 112. The current data of the delay frame period will be defined as the past data, and the temperature compensation signal st is transmitted to the temperature controller 115 so that the memory control unit το 117 is stored in the plurality of parameter table caps according to the temperature compensation signal & - a parameter table, and its ship-based drive search ί 112 to make the overdrive drive look for the illusion 12 operation adjustment, and pass the adjusted drive voltage value generated by the adjustment to the liquid crystal display panel 10 . ; However, the LCD panel may be used in different conditions and room temperature to overdrive the drive voltage to wait until the dry and crying, for her, ... Fang Shi robbery - n boot at a working temperature or - stable:: cup: secret r temperature The sensor detects the ambient temperature or the temperature of the liquid crystal display field, and the temperature is 'compensated as the sound temperature of the other areas of the panel. The temperature of the panel is DAY+day, and the upper bound of the panel is high. As the size of the LCD TV tends to be larger and the next quarter is lower, the difference in temperature gradient is 200842786. It is obvious. In turn, the motion r gradient becomes affected. The clarity of the shirt is also due to the above problems. The inventor based on the experience of multi-research, through multi-study research design and topic discussion, 遂 提 = 器 器 器 器 器 器 器 器 器 器 器 器 器 器 器 器 = = = = = = = = = = = = = = = = = = = = The driving system of the liquid crystal display ' takes into account the temperature gradient of the liquid crystal panel to compensate for the overdrive driving voltage. Therefore, in order to achieve the above objective, the driving system for a liquid crystal display according to the present invention comprises at least a liquid crystal panel, an image memory, at least two temporary storage memories, an image input terminal, and a memory control. The unit, a mic control unit, an overdrive driving lookup table, an overdrive driving compensation unit, and a guard controller. The liquid crystal panel has a plurality of driving components and a temperature sensing component. The driving component is configured to receive a display signal to drive the liquid crystal panel to display a written condition, and the temperature sensing component is configured to sense a temperature of the liquid crystal panel. The image memory is used to store an image data; the temporary memory is used to store the voltage values of the plurality of gamma compensations. The image input is used to newly input a piece of image data. The sensible body control unit is configured to output a corresponding gamma voltage according to the temperature of the temperature sensing element, and find the voltage value of the output image, and find the output image overvoltage voltage value, and the temperature, 'the image control unit is used to extract the previous The image data, the overdrive driving lookup table is used to compare the new image data with the previous image data, and generate a comparison result value, and the memory control unit searches and reads the corresponding image overexcitation voltage value compensation according to the comparison result value. A new image data is output to output a display image, and the overdrive driving compensation unit is configured to receive the display image, the gamma compensation voltage value and the temperature, and the gamma compensation voltage value and temperature are obtained by gamma mapping. The over-excitation compensation voltage value of the gamma over-excitation compensation curve of the upper and lower temperature gradients of the liquid crystal panel is based on the over-compensation voltage value to compensate the display image, and the timing controller is used to output the display signal corresponding to the compensated display image on the liquid crystal panel. Drive element, the drive element is electrically connected to the plurality of scans of the liquid crystal panel The line and the plurality of data lines control the overdrive driving voltage required for each pixel, accelerate the response time of the liquid crystal molecules, and improve the response speed of the liquid crystal display. Further, the driving system can also obtain at least one over-compensation data table of each region by using the compensation data table to compensate the display image, and the driving system can further use different temperature sensing components to detect different regions of the liquid crystal panel. The temperature and at least one over-compensation secondary port table corresponding to the respective regions of the entire liquid crystal panel are derived for the compensation data table corresponding to the individual temperature sensing elements to compensate for the overdrive driving voltage of the display image. The present invention is characterized by the use of gamma over-compensation for the over-voltage or over-excitation compensation data table, in addition to the compensation according to different temperatures, the staff, the different regions of the liquid crystal panel provide different overdrive voltages more accurate Corresponding to the change of the temperature gradient, the liquid crystal molecules are accelerated to improve the kneading quality. For better understanding and understanding of the technical features of the present invention and the achievable effects of the present invention, the following examples are provided for the purpose of assistance and detailed description. DESCRIPTION OF THE PREFERRED EMBODIMENT The following objects, features, and advantages of the present invention will become more apparent and easy to understand. The following is a description of the driving system for a liquid crystal display according to the present invention. The detailed description is as follows with reference to the accompanying drawings, wherein the same elements will be described with the same element symbols. Please refer to the fourth figure, which is a schematic diagram of a driving system of a liquid crystal display according to the present invention. The system 2 includes a liquid crystal panel 21, a frame memory 22 and a temporary memory. (R〇M) 23, an image input terminal 24, a memory control unit (10) M c〇ntr〇Uer), two image control unit (frame meraory contr〇ller) 26, an overdrive drive = lookup table (0D LUT) 27. An overdrive drive compensation unit (〇D c〇mpensati〇:
unit) 28 及一時序控制器（Timing contr〇iier)29。 衫像輸入端24係用以新輸入一筆影像資料e並將其進 γ傳送至影像控制單元2 6及過激驅動查找表2 γ。之後 影像控制單元26會將此筆影像資料ε傳送至其中一旦 =f/諸？自，控制單元26提取出已儲存:影像 =己隐體22之剛一筆影像資料D傳送至過激驅動查找 過~激驅動查找表27則將新一筆之影像資料£與^一 ^ 影像資料D加以比對以產生一比較結果值，依據比較結果 值由，憶體控制單元25查找並讀取相對應之伽瑪影像過 激電壓值，以過激驅動後輸出補償新一筆影像資料^，以 200842786 並由設於液晶面板21中間部位之一感溫 攄咸、i 1面板之溫度，而—感溫控制單元30係根 V:之溫度所產生之感溫訊號，經由記憶 Λ儲於暫存記憶體23中之複數筆伽瑪補 值輪出相對應於溫度之伽瑪補償曲線之 _值賴簡補償單元28。㈣激·_簡單元28 貝^收顯示影像、伽瑪補償曲線之電壓值及溫度，由伽瑪 2曲之電壓值及溫度以—伽瑪映射(ga_a贴卯咖) 一式取得對應液晶面板21之—溫度梯度之上下或左右之 二個^瑪過激補償曲線之過賴償電壓值，並依據過激補 •電壓值動態調整過激驅動查找表27所輸出之顯示影 像過時序控制器29輸出對應已補償之顯示影像之一顯 不訊號於液晶面板21之驅動元件（圖未示），進而驅動液 晶面板21以顯示一畫面。 =動7G件係電性連接至液晶面板之複數條掃描線及複 數條育料線。感溫元件211可為一溫度感測器並設於液晶 面板21之中間部位用以產生一溫度訊號，而此溫度訊號則 •可傳輸至一感溫控制單元30以提供記憶體控制單元25輸 出相對應伽瑪補償曲線之電壓值之依據。影像記憶體22 痛又為一動 存取記憶體（〇ynamic Rand〇m Access Memory, DRAM)，其中動態存取記憶體可為一同步動態隨機存取記憶 體（Synchronous Dynamic Random Access Memory，SDRAM)， 用以存儲影像資料。及一暫存記憶體23 一般為一唯讀記憶 ，（Read Only Memory，ROM)，而唯讀記憶體係用以存儲 複數筆相對應之伽瑪電壓輪出值。伽瑪映射（gamma mapping)方式係有關於一種伽瑪校正，將影像資料之灰階 呈現範圍之灰階碼映射（mapping)至一與該範圍相對應之 200842786 之灰階碼’且將最大伽碼電壓提高及最小伽 應Γ碼之伽碼電壓，顯示訊號 之:瑪電产。所輸入之影像資料係 8 兀之紅、綠、籃（RGB)三原色傳輸至聲 _ ^動J找表27 ’影像資料係分別用、“二工、 ί之階值’而每一顏色之灰階數為二五六階(音即 ΐ需要，父：為ff由全彩影像，；像 I而要一十四位7〇 (即八乘三）之影像資料。 =圖係為本發明液晶顯示器之驅㈣統中利用伽瑪 =方式所取得之二伽瑪過激補償曲綠之曲_，縱轴係 ^激驅動電壓值；橫軸分別為前1及新一筆影像數位 值。當影像資料之灰階碼240映射至灰階碼 (gray-code)255係為對於液晶面板的下部之盆中一補償 後之伽瑪電壓’而灰階碼224係為對於液晶面板的上部之 另一補償後之伽瑪電壓。 請參閱第六圖，係為本發明另一液晶顯示器之驅動系 統之方塊示意圖，如同第四圖所示，丰系統40也包含液晶 面板21、同步動態隨機存取記憶體22及唯讀記憶體23、影 像輪入端24、記憶體控制器25、影像控制器26 :過激驅= 查找表27、過激驅動補償早元28及時序控制5| 29。 請注意，影像輸入端24、影像控制器26、同步動態隨 機存取記憶體22及過激驅動查找表27對於影像資料之處 理方式如同第四圖所示’在此不再複述。此時設於液晶面 板21中間部位之溫度感測裔211债測面板之溫度，而溫感 控制器30係根據溫度感測器211偵測之溫度所產生之感溫 訊號，於預設複數筆補償資料表（overdrive LUT)中輸出 12 200842786 相對應溫度之資料表至過激_查找表27， 過激驅動補償單元28。其㈣__償單元找用^ 收顯示影像、補償資料的過激驅動查找表及來自記憶體= 制器25所對應之面板區域溫度，由補償資料的過激驅動: 找表及溫度推算出相對應之二局部補償=#料表，由[ ，晶面板21之範圍之-溫度梯度推算出至少—個 = 償貧料表，並依據過激補償資料表補償過激驅動查 7 所輸出之顯示影像。透過時序控制器29輸出對應已補^ 顯不影像之-®示訊號於液晶面板21之驅動元件 示），進而驅動液晶面板21以顯示一書面。 ° e^圖係為本發明另—液晶顯示器之驅動系統之補 h料表’其巾娜㈣表A係為職資料表，其^ =行係以間隔4作為基準並分別對應新—筆及前—筆j德 二料’當域TG件測得液晶面板之溫度時，取得對應 ^表之液晶面板上部區域及下部區域之二補償資g表& f C，並藉由—補，法（如：内差法..…推算_ 度梯度之至少—個過激補償資料表。而 ^可為線性、雙線性内差法或其他内差演算法 有較高之溫度(即反應速度較快)、 值i 於下部區域之補償資料表中，其 5理，依據溫度梯度所推算之過激補償資料f 以调整整個液晶面板之過激驅動電壓強度。使液 200842786 驅動元件所接收之_ 請參閱第八圖=舰可達成均句-致。 顯示器之驅動系統之；：本t明另—實施例’為又-液晶 統60包含液晶面板2 ▲不』处如同第四圖所示，本系 讀記憶體23、影鮮A、同步動㈣機存取記憶體22及唯 器26、過激驅動杳ί^24、記憶體控制器$影像控制 制器29。 、27、過激_補償單元28及時序控 請注意’影像於λ 機存取記憶體22對2 24、#像控制11 26、同步動態隨 示，在此不再複述H彡像資料之處理方式如同第四圖所 著不同在於此過㈣' 27與帛四圖之顯 器3°係根 夂^12刀別偵測到之溫度所產生之感溫 輸出相對應個別溫度感測器211及212之二過激驅 一查找表至過激驅動查找表27，再傳遞至過激驅動補償單 疋28。過激驅動補償單元28則接收顯示影像 、相對應個 別溫感測器211及212之過激驅動查找表及來自記憶體 控制器25之溫度，由過激驅動查找表及溫度對應液晶面板 21之範圍之一溫度梯度推算出至少一個過激補償資料 表，並依據過激補償資料表補償過激驅動查找表27所輸出 之顯示影像。透過時序控制器29輸出對應已補償之顯示影 像之一顯示訊號於液晶面板2丨之驅動元件（圖未示），進 而驅動液晶面板21以顯示一晝面。 200842786 哭之:動根據第八圖所示之本發明又-液晶顯示 之上部及下部補償資料表D及E，此上; 域所产J E丨係根據液晶面板之上部區域及下部區Unit) 28 and a timing controller (Timing contr〇iier) 29. The shirt image input terminal 24 is for newly inputting an image data e and transmitting it to the image control unit 26 and the overdrive driving lookup table 2 γ. After that, the image control unit 26 will transmit the image data ε to it once =f/? Since the control unit 26 extracts the stored image: the image data of the hidden body 22 is transmitted to the overdrive drive and the search table 27 is used to add the new image data to the image data D. Aligning to generate a comparison result value, according to the comparison result value, the memory control unit 25 searches for and reads the corresponding gamma image overdrive voltage value, and outputs the compensated new image data after the overdrive, to 200842786 and The temperature of the temperature in the middle portion of the liquid crystal panel 21 is the temperature of the i1 panel, and the temperature sensing signal generated by the temperature sensing unit 30 is the temperature of the V: the memory is stored in the temporary memory 23 via the memory. The plurality of gamma complement values in the middle of the gamma compensation curve corresponding to the gamma compensation curve of the temperature. (4) The _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - The over-reliance voltage value of the two over- or two-way over-excitation compensation curves of the temperature gradient, and the display image outputted by the over-excited drive look-up table 27 according to the over-excitation/voltage value is outputted. One of the display images is displayed on the driving element (not shown) of the liquid crystal panel 21, and the liquid crystal panel 21 is driven to display a picture. The moving 7G piece is electrically connected to the plurality of scanning lines and the plurality of feeding lines of the liquid crystal panel. The temperature sensing element 211 can be a temperature sensor and is disposed in the middle of the liquid crystal panel 21 for generating a temperature signal, and the temperature signal can be transmitted to a temperature sensing control unit 30 to provide the output of the memory control unit 25. Corresponding to the basis of the voltage value of the gamma compensation curve. The image memory 22 is also a dynamic Rand〇m Access Memory (DRAM), wherein the dynamic access memory can be a Synchronous Dynamic Random Access Memory (SDRAM). Used to store image data. And a temporary memory 23 is generally a read only memory (ROM), and a read-only memory system is used to store the corresponding gamma voltage round-out value of the plurality of pens. The gamma mapping method relates to a gamma correction, which maps the gray-scale code of the gray-scale representation range of the image data to a gray-scale code of 200842786 corresponding to the range and the maximum gamma The code voltage is increased and the gamma voltage of the minimum gamma weight is displayed. The signal is displayed: Ma Electric. The input image data is 8 兀 red, green, basket (RGB) three primary colors transmitted to the sound _ ^ move J to find the table 27 'image data are used separately, "two work, ί step value" and each color gray The order is 256 steps (sound is needed, father: ff is full-color image; for I, it is 14-bit 7〇 (that is, eight by three) image data. = Figure is the LCD of the invention The display of the display (4) in the system using the gamma = method to obtain the two gamma over-excitation compensation curve green _, the vertical axis is the driving voltage value; the horizontal axis is the first 1 and the new image digital value. The grayscale code 240 is mapped to a gray-code 255 for a compensated gamma voltage in the lower basin of the liquid crystal panel, and the grayscale code 224 is another compensation for the upper portion of the liquid crystal panel. The gamma voltage is as follows. Referring to the sixth figure, it is a block diagram of a driving system of another liquid crystal display according to the present invention. As shown in the fourth figure, the system 40 also includes a liquid crystal panel 21 and a synchronous dynamic random access memory. 22 and read-only memory 23, image wheel-in terminal 24, memory controller 25, image control 26: Overdrive = Lookup Table 27, Overdrive Drive Compensation Early 28 and Timing Control 5| 29. Note that image input terminal 24, image controller 26, synchronous dynamic random access memory 22, and overdrive search lookup table 27 The processing method of the image data is as shown in the fourth figure, 'will not be repeated here. At this time, the temperature of the middle part of the liquid crystal panel 21 is sensed by the temperature of the 211 debt measurement panel, and the temperature sensor 30 is based on the temperature sense. The temperature sensing signal generated by the temperature detected by the detector 211 outputs a data table of 12200842786 corresponding temperature in the preset multiple compensation data table (overdrive LUT) to the overdrive_look table 27, the overdrive driving compensation unit 28. (4) __ Compensation unit to find ^ Receive display image, compensation data for the overdrive search lookup table and the panel area temperature corresponding to the memory = controller 25, driven by the overdrive of the compensation data: lookup table and temperature calculation corresponding to the second Local compensation = #料表, from [, the range of the crystal panel 21 - the temperature gradient to calculate at least one = the poverty-reducing material table, and according to the over-excitation compensation data table to compensate the display image of the output of the overdrive drive 7 The timing controller 29 outputs a corresponding component of the LCD panel 21 to the LCD panel 21, and then drives the liquid crystal panel 21 to display a written image. The display of the drive system of the display of the 'Happa Na (four) table A is the job information table, its ^ = line with the interval 4 as the benchmark and respectively correspond to the new - pen and the former - pen j two materials 'When the domain TG When the temperature of the liquid crystal panel is measured, the second compensation area g table & f C of the upper and lower areas of the liquid crystal panel corresponding to the table is obtained, and by the method of complementing, for example, the internal difference method is calculated. At least one degree of gradient gradient data table. ^ can be a linear, bilinear internal difference method or other internal difference algorithm has a higher temperature (ie faster reaction speed), value i in the lower region of the compensation data table, its 5, according to the temperature gradient The extrapolated compensation data f is used to adjust the overdrive driving voltage of the entire liquid crystal panel. The liquid is received by the 200842786 drive component. See Figure 8 for the ship. The drive system of the display; the other embodiment - the embodiment 'is again - the liquid crystal system 60 includes the liquid crystal panel 2 ▲ no" as shown in the fourth figure, the reading memory 23, the shadow A, the synchronous movement (four) The machine accesses the memory 22 and the buffer 26, the overdrive driver 2424, and the memory controller $image controller 29. 27, over-excitation _ compensation unit 28 and timing control, please note that 'images λ machine access memory 22 pairs 2 24, # image control 11 26, synchronous dynamics, here will not repeat the processing of H 彡 image data As the fourth picture is different here (4) '27 and 帛 four pictures of the 3 ° system root 夂 ^ 12 knife detected temperature generated by the temperature response corresponding to the individual temperature sensors 211 and 212 The second overdrive driver looks up the table to the overdrive driver lookup table 27 and passes it to the overdrive driver compensation unit 28. The overdrive driving compensation unit 28 receives the display image, the overdrive driving lookup table corresponding to the individual temperature sensors 211 and 212, and the temperature from the memory controller 25, and one of the ranges of the overdrive driving lookup table and the temperature corresponding liquid crystal panel 21. The temperature gradient derives at least one overdrive compensation data table, and compensates the display image output by the overdrive drive lookup table 27 according to the overdrive compensation data table. A driving element (not shown) corresponding to one of the compensated display images is displayed on the liquid crystal panel 2 through the timing controller 29, thereby driving the liquid crystal panel 21 to display a side surface. 200842786 Cry: According to the invention shown in the eighth figure - the upper and lower compensation data sheets D and E of the liquid crystal display, the upper side; the J E丨 produced by the field according to the upper and lower areas of the liquid crystal panel
所測面板上下區域溫度加以載入， 激軸查找表處理後輪出之顯示影像，由過激驅 曰=貝^ 内差法按上下部補償資料表d及ε依據液 :板_之溫度梯度加以推算’並進而補償顯示影像。 此外’如所施加;^驅動元件之電壓愈偏面板之上部時，對 於上部的過激㈣f壓強度之比重將會增加；如所施加於 驅動元件之電壓愈偏面板之下部時，對於下部的過激驅動 電壓強度之比重則會增加，即經由不同區域以執行内差。 進一步地，設置於液晶面板21之溫度感測器更可為 複數個21卜212、213、214、215、216等如第十圖所示之 驅動系統70，並將其設置於面板之上部及下部區域。則記 憶體控制器25則根據溫度感測器211、212、213、214、 215及216所測溫度輸出相對應於溫度感測器個數之補償 資料表，後續步驟則如同第六圖所示，則過激驅動查找表 27接收相對應溫度感A器211、212、213、214、215及216 之複數個過激驅動查找表，再傳遞至過激驅動補償單元 28。過激驅動補償單元28接收顯示影像、相對應溫度感測 器211、212、213、214、215及216之複數個過激驅動查 找表及來自記憶體控制器25之溫度，由複數個過激驅動查 找表及溫度對應液晶面板21之範圍之一溫度梯度係推算 出至少一個過激補償資料表，依據過激補償資料表係補償 過激驅動查找表27所輸出之顯示影像，並藉由時序控制器 15 200842786 進而驅動液晶面 29加以輸出至液晶面板21之驅動元件， 板21以顯示一畫面。 以上所述僅為舉舰’而非為限制 按 項技術人士，依據本發明所搞兩 文凡…、心口亥 本發明之精神與料，而對，在任何未脫離 包含於後社巾請糊之料修改錢更’均應 【圖式簡單說明】The temperature of the upper and lower areas of the panel is loaded, and the image displayed after the excitation axis lookup table is processed by the overdrive 曰=贝^ internal difference method according to the upper and lower compensation data table d and ε according to the liquid: plate_temperature gradient Estimate 'and compensate for the displayed image. In addition, if the voltage of the driving component is more than the upper part of the panel, the proportion of the over-excitation (four)-f pressure intensity of the upper part will increase; if the voltage applied to the driving element is more biased toward the lower part of the panel, the upper part is over-excited. The specific gravity of the driving voltage intensity is increased, that is, via different regions to perform the internal difference. Further, the temperature sensor disposed on the liquid crystal panel 21 may further be a plurality of 21, 212, 213, 214, 215, 216, etc., the driving system 70 as shown in the tenth figure, and is disposed on the upper part of the panel and Lower area. Then, the memory controller 25 outputs a compensation data table corresponding to the number of temperature sensors according to the temperature measured by the temperature sensors 211, 212, 213, 214, 215, and 216, and the subsequent steps are as shown in the sixth figure. The overdrive search lookup table 27 receives the plurality of overdrive search lookup tables of the corresponding temperature sense A devices 211, 212, 213, 214, 215, and 216, and transmits them to the overdrive drive compensation unit 28. The overdrive driving compensation unit 28 receives the display image, the plurality of overdrive driving lookup tables corresponding to the temperature sensors 211, 212, 213, 214, 215, and 216 and the temperature from the memory controller 25, and the plurality of overdrive driving lookup tables And the temperature gradient corresponding to one of the ranges of the liquid crystal panel 21 is used to derive at least one overdrive compensation data table, and the display image outputted by the overdrive driving lookup table 27 is compensated according to the overdrive compensation data table, and is further driven by the timing controller 15 200842786 The liquid crystal surface 29 is output to the driving element of the liquid crystal panel 21, and the board 21 displays a picture. The above description is only for the ship's, rather than for limiting the technical person, according to the invention, the two articles of the text, the heart and the spirit of the invention, and the right, in any not included in the back towel The material modification money is more 'all should be simple description]
第-圖係為習知技藝液晶顯示器中像素電壓與其光線穿 透率VI的時序圖； 第二圖係為習知技藝使用過激驅動方法時其像素電壓與 其光線穿透率V2之時序圖； 第三圖係為習知技藝應用於液晶顯示面板之驅動電路之 方塊示意圖； ' 第四圖係為本發明〜液晶顯示器之驅動系統之方塊示意The first diagram is a timing diagram of the pixel voltage and its light transmittance VI in the conventional art liquid crystal display; the second diagram is a timing diagram of the pixel voltage and its light transmittance V2 when the overdrive method is used in the prior art; The three figures are block diagrams of the driving circuit applied to the liquid crystal display panel by the prior art; 'The fourth figure is a block diagram of the driving system of the liquid crystal display of the present invention.
第五圖係為本發明之利用伽瑪映射方式所取得之二伽瑪 過激補償曲線之曲線圖；The fifth figure is a graph of the second gamma overdrive compensation curve obtained by the gamma mapping method of the present invention;
意圖； 第七圖係為本發明另 〜液晶顯示器之驅動系統之方塊示 〜液晶顯示器之驅動糸統之補傾賓 料表； 第八圖係為本發明另〜實施例，為又一液晶顯示器之驅 動糸統之方塊不思圖； #' 200842786 第九圖係為根據第八圖所示之本發明又一應用於液晶顯 示器之驅動系統中之上部及下部補償資料表D及E;以 及 第十圖係為本發明另一實施例，為再一液晶顯示器之驅 動系統之方塊示意圖。 【主要元件符號說明】 1 :驅動電路； 10 ·液晶顯不面板， 101 :溫度感測器； 111 :影像輸入端； 112 :過激驅動查找表； 113 :影像控制單元； 114 :影像記憶體； 115 :溫度控制器； 116 :暫存記憶體； 117 :查表控制單元； 118 :時序控制器； 20、40、60、70 :驅動系統； 21 :液晶面板； 22 :影像記憶體； 23 :暫存記憶體； 24 :影像輸入端； 25 :記憶體控制單元； 26 :影像控制單元； 27 :過激驅動查找表； 28 :過激驅動補償單元； 29 :時序控制器； 21 卜 212、213、214、215、 216 :感溫元件；以及 30 :感溫控制單元。 17The seventh figure is a block diagram of the driving system of the liquid crystal display of the present invention. The liquid crystal display is a complementary liquid crystal display. The eighth figure is another liquid crystal display according to another embodiment of the present invention. The driving block of the system is not considered; #' 200842786 The ninth figure is the upper and lower compensation data sheets D and E in the driving system of the liquid crystal display according to the invention shown in the eighth figure; The tenth figure is another block diagram of the driving system of the liquid crystal display according to another embodiment of the present invention. [Main component symbol description] 1 : Drive circuit; 10 · LCD display panel, 101: Temperature sensor; 111: Image input terminal; 112: Overdrive driver lookup table; 113: Image control unit; 114: Image memory; 115: temperature controller; 116: temporary memory; 117: look-up table control unit; 118: timing controller; 20, 40, 60, 70: drive system; 21: liquid crystal panel; 22: image memory; Temporary memory; 24: image input terminal; 25: memory control unit; 26: image control unit; 27: overdrive search lookup table; 28: overdrive drive compensation unit; 29: timing controller; 21 卜 212, 213, 214, 215, 216: temperature sensing element; and 30: temperature sensing control unit. 17