201025260 ---------2 28703twf.doc/n 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種平面顯示技術，且特別是有關於 一種可以改善液晶顯示器產生色偏（color washout)的面 板驅動裝置與方法。 【先前技術】 ©隨著光電與半導體技術的發展，帶動了平面顯示器之 .- . · 蓬勃發展’而諸多平.面顯示器中，液晶顯示器由於因具有 尚空間利用效率、低消耗功率、無輻射以及低電磁干擾等 優越特性’因而成為市場之主流。目前，市場對於液晶顯 示器的性能要求是朝向高對比、快速反應與廣視角等特性 發展’且目前能夠達成廣視角要求的技術例如包括有多域 垂直配向（MVA)、多域水平配向（MHA)、扭轉向列 加視角擴大膜（TN+film)及橫向電場形式（IPS)。 雖然透過上述所列之技術的液晶顯示器可以達到廣視 ❷ 角的目的’但是其所存在的色偏（color washout)現象也 是為人所話病。一般而言，所謂的色偏指的是當使用者以 不同的觀Μ角度在觀看液晶顯示器所顯示的影像晝面時， 其會看見不同色彩階調的影像畫面。舉例來說，假若使用 者站在以較為偏斜的角度（例如6〇度）在觀看液晶顯示器 所顯示的影像晝面時，其所看見的影像晝面之色彩階調會 偏白於站在正視之角度（亦即9〇度）所看見的影像晝面之 色彩階調。 ~ 201025260 ‘28703twf.doc/n 【發明内容】 有鑑於此，本發明提供一種面板驅動裝置與方法，其 可以改善液晶顯示器所產生的色偏（c〇1〇rwash〇ut) 〇 本發明提供一種面板驅動裝置，其包括時序控制器、 伽瑪電壓產生單元，以及源極驅動器。其中，時序控制器 用以至少提供一資料訊號，而伽瑪電壓產生單元則用以至 少提供兩組伽瑪參考電壓。源極驅動器耦接時序控制器與 ❿伽瑪電壓產生單元’且受控於時序控制器，用以接收所述 資料訊號與所述兩組伽瑪參考電壓，並依據所述資料訊號 而於所述兩組伽瑪參考電壓中映射出兩個驅動訊號，藉以 驅動面板中至少一晝素。 於本發明之一實施例中，所述晝素内至少具有兩個子 晝素’且所述兩個子晝素係由同一掃描訊號而被開啟，並 各別由所述兩個驅動訊號驅動。 於本發明之一實施例中，所述伽瑪電壓產生單元包括 帛-電阻串與第二電阻串。其中，所述第—賴串會減 囅於-系統電壓與-參考電壓之間，且由多個第〆^變電阻 所組成，用以提供所述兩組伽瑪參考電壓之其中一組。所 述第二電阻串亦耦接於所述系統電壓盥所述參考電壓之 間’且由多個第二可變電阻所組成，用以提供所述兩組伽 瑪參考電壓之其中另一組。 〃 本發明另提供一種面板驅動方法，其包括：首先，提 供一資料訊號與兩組伽瑪參考電壓。接著，依據所述資料 訊號而於所述兩組伽瑪參考電壓中映射出至少兩個驅動訊 6 厶 28703twf.doc/n 201025260 號’藉以驅動該面板中至少一晝素。 於本發明之一實施例中，在驅動所述畫素之前，本發 明所提供的面板驅動方法更包括提供一掃描訊號以同時開 啟所述晝素内至少兩個子晝素。其中，所述兩個子晝素各 別由所述兩個驅動訊號驅動。 於上述本發明之一實施例中，所述兩組伽瑪參考電壓 係為相同或不同。201025260 ---------2 28703twf.doc/n IX. Description of the invention: [Technical field of the invention] The present invention relates to a flat display technology, and in particular to an improved liquid crystal display color Panel drive device and method for color washout. [Prior Art] © With the development of optoelectronics and semiconductor technology, the flat panel display has been promoted. - In many flat-panel displays, liquid crystal displays have space utilization efficiency, low power consumption, and no radiation. And superior characteristics such as low electromagnetic interference' has thus become the mainstream of the market. At present, the market's performance requirements for liquid crystal displays are toward high contrast, rapid response and wide viewing angles, and technologies that can now achieve wide viewing angle requirements include, for example, multi-domain vertical alignment (MVA) and multi-domain horizontal alignment (MHA). Twisted nematic plus viewing angle expansion film (TN+film) and transverse electric field form (IPS). Although the liquid crystal display of the above-listed technology can achieve the purpose of wide viewing angles, the color washout phenomenon existing therein is also a problem. In general, the so-called color shift refers to an image view of a different color tone when the user views the image displayed on the liquid crystal display at different viewing angles. For example, if the user is standing at a more oblique angle (for example, 6 degrees) while viewing the image displayed on the liquid crystal display, the color tone of the image surface that is seen will be white. The color tone of the image seen from the angle of the front view (ie 9 degrees). In view of the above, the present invention provides a panel driving apparatus and method, which can improve the color shift generated by a liquid crystal display (c〇1〇rwash〇ut). The present invention provides a A panel driving device includes a timing controller, a gamma voltage generating unit, and a source driver. The timing controller is configured to provide at least one data signal, and the gamma voltage generating unit is configured to provide at least two sets of gamma reference voltages. The source driver is coupled to the timing controller and the gamma gamma voltage generating unit ′ and controlled by the timing controller for receiving the data signal and the two sets of gamma reference voltages, and according to the data signal Two driving signals are mapped in the two sets of gamma reference voltages to drive at least one element in the panel. In an embodiment of the present invention, the halogen has at least two sub-stimuli' and the two sub-small elements are turned on by the same scanning signal, and are respectively driven by the two driving signals. . In an embodiment of the invention, the gamma voltage generating unit comprises a 帛-resistor string and a second resistor string. The first-to-last string is reduced between the -system voltage and the -reference voltage, and is composed of a plurality of tensor resistors for providing one of the two sets of gamma reference voltages. The second resistor string is also coupled between the system voltage 盥 the reference voltage and is composed of a plurality of second variable resistors to provide another set of the two sets of gamma reference voltages. . The present invention further provides a panel driving method, comprising: first, providing a data signal and two sets of gamma reference voltages. Then, according to the data signal, at least two driving signals are mapped in the two sets of gamma reference voltages to drive at least one element in the panel. In an embodiment of the present invention, before driving the pixel, the panel driving method provided by the present invention further includes providing a scan signal to simultaneously turn on at least two sub-cells in the pixel. The two sub-elements are each driven by the two driving signals. In an embodiment of the invention described above, the two sets of gamma reference voltages are the same or different.
m 於上述本發明之一實施例中，所述兩個驅動訊號係為 相同或不同驅動極性。 本發明另提供一種具有上述本發明所提出之面板驅動 裝置的液晶顯示器。 本發明所提出的面板驅動裝置與方法主要係應用於具 有分區之晝素結構（例如2D1G)的面板中。本發明所提 =的面板職裝置與方法會獨立提供她者減的伽瑪參 電壓（gamma reference voltage)給源極驅動器使用。 氣此—來’當時序控制器提供—筆資料喊給源極驅 ，源極會依據該筆f料訊號而於所 :電====== =示=灰階的色彩，且讓另—子畫素顯示較= 合成-中間灰階的色彩後，即可使得使用者不 觀看液晶顯示器所顯示==1 了觀看到相近色衫階調的影像晝面。 白 7 201025260 為讓本發明之上述和其他目的、特徵和優點能更明顯 易懂，下文特舉本發明至少一實施例，並配合所附圖式， 作詳細說明如下。 【實施方式】 本發明欲達成的技術功效是為了要改善液晶顯示器所 產生的色偏（color washout)。而以下内容將針對本發明 之技術手段與功效來做一詳加描述給本發明相關領域之技 術人員參詳。 圖1緣示為本發明一實施例之液晶顯示器的系統方塊 圖。圖2繪示為本發明一實施例之面板的部份晝素陣列示 意圖。請合併參照圖1及圖2，液晶顯示器（LCD) 1〇〇 包括面板（displaypanel) 1(H、閘極驅動器（gatedriver) 103、源極驅動器（source driver) 105、時序控制器（timing controller) 107、伽瑪電壓產生單元1〇9，以及背光模組 (backlight module) 111。其中，源極驅動器1〇5、時序控 參 制器107以及伽瑪電壓產生單元109係構成本發明的面板 驅動裝置。 於本實施例中，面板101具有多個以陣列方式排列而 成的晝素Pix ’且母一畫素Ρίχ被區分成兩個區域。盆中·一 區為主子晝素（main sub-pixel)M，而另—區為次子圭素 (sub sub-pixel) S。於此先值传一提的是，以本發明領域 具有通常知識者在觀看完圖2所揭示的圖式後應該可以知 道，本實施例係採用具有分區之晝素結構（例如2D1G， 201025260·· / v ^„ w2 28703twf.doc/n 其中D指的是資料線Dn~Dn+3，而G指的是掃描線Gn、 Gn+1)的面板101，但本發明並不限制於此’資料線與掃 描線的數目可依照實際設計需求而任意變化。 背光模組111用以提供面板1〇1所需的面光源，藉以 讓面板101能達到顯示影像晝面的目的。閘極驅動器1〇3 搞接並受控於時序控制器107 ’用以接收時序控制器1〇7 所提供的起始脈衝（start pulse) STV後，而序列輸出一掃 ❹ 描訊號（scan signal)以開啟面板i(u内的每一列畫素。於 此，由於本實施例係採用具有分區之畫素結構（亦即 2D1G)的面板101，所以同一列晝素中的所有晝素Ηχ之 主子晝素Μ與次子晝素s會被同一掃描訊號開啟。 伽瑪電壓產生單元109用以至少提供兩組伽瑪參考電 壓GA1〜GAn、GB1〜GBn。圖3繪示為本發明一實施例之 伽瑪電壓產生單元的電路圖。請合併參照圖1〜圖3，伽瑪 電壓產生單元109包括第一電阻串301與第二電組串 303。其中，第一電阻串301耦接於面板1〇1的系統電壓 ❹ VW>A與參考電壓（例如為接地電位）之間，且由多個第一 可變電阻（variable resistance) RA1〜RAn所組成，用以提 供一組伽瑪參考電壓GA1〜GAn。另外，第二電阻串3〇3 亦耦接於所述系統電壓乂郎八與參考電壓之間，且由多個 第二可變電阻RB1〜RBn所組成，用以提供另一組伽瑪參 考電壓GB1〜GBn。 ， 源極驅動器105耦接時序控制器1〇7與伽瑪電壓產生 單元109’並且受控於時序控制器1〇7，用以接收時序控制 l 28703twf.doc/n 201025260 器107所提供的一筆資料訊號DS與所述兩組伽瑪參考電 壓GA1〜GAn、GB1〜GBn ’並依據該筆資料訊號DS而於 所述兩組伽瑪參考電壓GA1〜GAn、GBl~GBn中映射 (mapping)出兩個具有不同驅動極性（例如圖2中的+/_ 標號分別代表正極性與負極性）的驅動訊號，藉以提供至 兩資料線（Dn，Dn+Ι )或（Dn+2, Dn+3 )上，來各別驅動 晝素Pix中的主子晝素Μ與次子畫素s。 φ 基於上述，為了要讓同一筆資料訊號DS於兩組伽瑪 參考電壓GA1〜GAn、GB1〜GBn中映射出兩個具有不同驅 動極性的驅動訊號’以各別驅動晝素Pix中的主子晝素M 與次子晝素S。本實施例僅需根據分壓原理將第一可變電 阻串之可變電阻RA1〜RAn的阻值間的比例調整得與各第 二可變電阻串之可變電阻RB1〜RBn的阻值的比例不同即 可，從而使得所述兩組伽瑪參考電壓GA1〜GAn、GBl〜GBn 不同。 換言之，本實施例主要是透過調整各第一可變電阻 ❹ RA1〜RAn與各第二可變電阻RB1〜RBn的阻值，以致使同 一筆資料訊號DS可以於兩組伽瑪參考電壓GA1〜GAn、 GB1〜GBn中映射出兩個具有不同驅動極性的驅動訊號。 另外，於本實施例中，同一晝素Pix中的主子晝素Μ 與次子畫素S其中之一會顯示較高灰階的色彩，而另一會 顯示較低灰階的色彩。如此一來，以較高灰階的色彩與較 低灰階的色彩來混合成一中間灰階的色彩後，即可使得使 用者不論從正視或以傾斜的角度在觀看液晶顯示器100所 201025260 28703twf.doc/n 顯示的影像晝面時，皆可觀看到相近色彩階調的影像晝面。 然而，在本發明的其他實施例中，當面板101係非為 採用具有分區之晝素結構時，使用者可將各第一可變電阻 RA1〜RAn的阻值調整的與各第二可變電阻的阻 值相同，從而使得所述兩組伽瑪參考電壓GA1〜GAn、 GB1〜GBn為相同。如此一來，同一筆資料訊號DS於兩組 伽瑪參考電壓GA1〜GAn、GB1〜GBn中所映射出的兩個驅 0 動訊號之極性就會相同，以至於本發明所提出的面板驅動 裝置即可同時應用於具有分區或非分區之晝素結構的面 板，從而符合設計的通用性。 圖4繪示為本發明一實施例之面板驅動方法的流程 圖。請參照圖4 ’本實施例之面板驅動方法其包括：首先， 如步驟S401所述’提供一資料訊號與兩組伽瑪參考電壓。 接著’如步驟S403所述，依據所述資料訊號而於所述兩 組伽瑪參考電壓中映射出至少兩個驅動訊號，藉以驅動面 板中至少一晝素。 ® 於本實施例中，在驅動所述晝素之前，本實施例之面 板驅動方法更包括提供一掃描訊號以同時開啟所述晝素内 至少兩個子畫素，藉以致使所述兩個驅動訊號各別驅動所 述兩個子畫素。而在此值得一提的是，當面板係為採用具 有分區之晝素結構時，所述兩組伽瑪參考電壓係為不同， 且所述兩個驅動訊號可為不同驅動極性，但是當面板係非 為採用具有分區之晝素結構時，所述兩組伽瑪參考電壓係 為相同’且所述兩個驅動訊"5虎亦為相同驅動極性。 201025260_ “一 28703twfl(ioc/ri ^綜上所述，本發明所提出的面板驅動裝置與方法主要 係應用於具有分區之畫素結構（例如2D1G)的面板中。 本發明所提出的面板驅動裝置與方法會獨立提供兩組者相 異的伽瑪參考電壓（gammareferencev〇ltage)給源極驅動 器使用。 如此一來，當時序控制器提供一筆資料訊號給源極驅 動器時，源極驅動器會依據該筆資料訊號而於所述兩組伽 ❹ 瑪參考電壓中映射出至少兩個驅動極性相反的驅動訊號， 以各別驅動一畫素中的兩個子晝素，並讓所述兩個子晝素 其中之一顯示較高灰階的色彩，且讓另一子畫素顯示較低 灰階的色彩。藉此，以較高灰階的色彩與較低灰階的色彩 來混合成一中間灰階的色彩後，即可使得使用者不論從正 視或以傾斜的角度在觀看液晶顯示器所顯示的影像晝面 時’皆可觀看到相近色彩階調的影像晝面。 當然’基於上述所揭示的内容亦可知，本發明所提出 的面板驅動裝置與方法亦可應用於具有非分區之書素結構 ® 的面板中。如此一來，當時序控制器提供一筆資料訊號給 源極驅動器時’源極驅動器會依據該筆資料訊號而於所述 兩組伽瑪參考電壓中映射出兩個驅動極性相同的驅動訊 號，以各別驅動一畫素中的兩個子晝素，藉以來滿足設計 的通用性。 雖然本發明已以多個實施例揭露如上，然其並非用以 限定本發明’任何所屬技術領域中具有通常知識者，在不 脫離本發明之精神和範圍内，當可作些許之更動與潤飾， 12 201025260 *--------2 28703twf.doc/n 因此本發明之保護範圍當視後附之申請專利範圍所界定者 為準。 【圖式簡單說明】 圖1繪示為本發明一實施例之液晶顯示器的系統方塊 圖。 圖2繪示為本發明一實施例之面板的部份晝素陣列示 _ 意圖。 圖3繪示為本發明一實施例之伽瑪電壓產生單元的電 路圖。 圖4繪示為本發明一實施例之面板驅動方法的流程 圖。 【主要元件符號說明】 100 :液晶顯示器 鲁 101 :面板 103 :閘極驅動器 105 :源極驅動器 107:時序控制器 109 :伽瑪電壓產生單元 in ·背光模組 Pix:晝素 Μ·主子晝素 次子晝素 13 28703twf.doc/n 201025260m In one embodiment of the invention described above, the two drive signals are of the same or different drive polarities. The present invention further provides a liquid crystal display having the above-described panel driving device of the present invention. The panel driving apparatus and method proposed by the present invention are mainly applied to a panel having a partitioned halogen structure (e.g., 2D1G). The panel device and method proposed by the present invention independently provide the gamma reference voltage of the latter to the source driver. This is the case - when 'the timing controller provides - the pen data is called to the source drive, the source will be based on the f signal signal: electricity ====== = indicates = grayscale color, and let another After the sub-picture display shows the color of the = composite-intermediate gray level, the user can watch the image of the similar color tone without viewing the display of the liquid crystal display ==1. The above and other objects, features, and advantages of the present invention will become more apparent from the aspects of the invention. [Embodiment] The technical effect of the present invention is to improve the color washout produced by the liquid crystal display. The following description of the technical means and functions of the present invention will be described in detail in the related art. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a block diagram showing the system of a liquid crystal display according to an embodiment of the present invention. 2 is a schematic illustration of a portion of a pixel array of a panel in accordance with an embodiment of the present invention. Referring to FIG. 1 and FIG. 2 together, a liquid crystal display (LCD) 1 includes a display panel 1 (H, a gate driver 103, a source driver 105, and a timing controller). 107. A gamma voltage generating unit 1〇9, and a backlight module 111. The source driver 1〇5, the timing control parameter controller 107, and the gamma voltage generating unit 109 constitute a panel driving device of the present invention. In the present embodiment, the panel 101 has a plurality of alizarin Pix's arranged in an array, and the parental pixel is divided into two regions. The basin is a main sub-salm (main sub) -pixel)M, and the other region is sub sub-pixel S. It is mentioned here that the ones having the usual knowledge in the field of the present invention are viewing the schema disclosed in FIG. It should be understood later that this embodiment adopts a morphological structure with partitions (for example, 2D1G, 201025260·· / v ^„ w2 28703twf.doc/n where D refers to the data line Dn~Dn+3, and G refers to It is the panel 101 of the scanning lines Gn, Gn+1), but the present invention is not limited to The number of the data lines and the scan lines can be arbitrarily changed according to the actual design requirements. The backlight module 111 is used to provide the surface light source required for the panel 1〇1, so that the panel 101 can achieve the purpose of displaying the image surface. The driver 1〇3 is connected and controlled by the timing controller 107' to receive the start pulse STV provided by the timing controller 1〇7, and the sequence outputs a scan signal to turn on Panel i (each column of pixels in u. Here, since this embodiment employs a panel 101 having a partitioned pixel structure (i.e., 2D1G), all of the elements in the same column of pixels are primed. The Μ and 次 昼 s are turned on by the same scanning signal. The gamma voltage generating unit 109 is configured to provide at least two sets of gamma reference voltages GA1 GGn, GB1 〜 GBn. FIG. 3 illustrates a gamma according to an embodiment of the present invention. A circuit diagram of the voltage generating unit. Referring to FIG. 1 to FIG. 3, the gamma voltage generating unit 109 includes a first resistor string 301 and a second power string 303. The first resistor string 301 is coupled to the panel 1〇1. System voltage ❹ VW>A and reference The voltage (for example, a ground potential) is composed of a plurality of first variable resistors RA1 RARAn for providing a set of gamma reference voltages GA1 GGAMn. In addition, the second resistor string 3 〇 3 is also coupled between the system voltage 八8 and the reference voltage, and is composed of a plurality of second variable resistors RB1 RBRBn for providing another set of gamma reference voltages GB1 GGn. The source driver 105 is coupled to the timing controller 1〇7 and the gamma voltage generating unit 109' and is controlled by the timing controller 1〇7 for receiving the timing control 1 28703twf.doc/n 201025260 The data signal DS and the two sets of gamma reference voltages GA1~GAn, GB1~GBn′ are mapped in the two sets of gamma reference voltages GA1~GAn, GB1~GBn according to the data signal DS. Two drive signals with different drive polarities (for example, the +/_ labels in Figure 2 represent positive and negative polarities respectively) are provided to two data lines (Dn, Dn+Ι) or (Dn+2, Dn+3) ), to drive the primary and secondary sub-pixels in the Pixel Pix. φ Based on the above, in order to allow the same data signal DS to map two driving signals with different driving polarities in the two sets of gamma reference voltages GA1~GAn, GB1~GBn, respectively, to drive the main sub-units in the pixel Pix. Prime M and secondary scorpion S. In this embodiment, only the ratio between the resistances of the variable resistors RA1 RARAn of the first variable resistor string is adjusted to be the resistance of the variable resistors RB1 RBRBn of the second variable resistor string according to the voltage division principle. The ratios may be different, such that the two sets of gamma reference voltages GA1 GGn, GB1 〜 GBn are different. In other words, the present embodiment mainly adjusts the resistance values of the first variable resistors ❹ RA1 〜 RAn and the second variable resistors RB1 RB RBn so that the same data signal DS can be in the two sets of gamma reference voltages GA1 〜 Two driving signals with different driving polarities are mapped in GAn and GB1 to GBn. In addition, in the present embodiment, one of the primary and secondary sub-pixels in the same pixel Pix will display a higher grayscale color, and the other will display a lower grayscale color. In this way, after mixing the color of the higher gray scale with the color of the lower gray scale to form an intermediate gray scale color, the user can view the liquid crystal display 100 201025260 28703twf from a front view or a tilt angle. When the image displayed by doc/n is displayed, the image plane of similar color tone can be viewed. However, in other embodiments of the present invention, when the panel 101 is not configured to have a partitioned pixel structure, the user can adjust the resistance values of the first variable resistors RA1 RANHn and the second variable. The resistance values of the resistors are the same, so that the two sets of gamma reference voltages GA1 GGn, GB1 〜 GBn are the same. In this way, the polarities of the two drive signals mapped by the same data signal DS in the two sets of gamma reference voltages GA1 GGn, GB1 〜 GBn are the same, so that the panel driving device proposed by the present invention It can be applied to panels with partitioned or non-partitioned pixel structures at the same time, thus meeting the versatility of the design. 4 is a flow chart showing a panel driving method according to an embodiment of the present invention. Referring to FIG. 4, the panel driving method of the embodiment includes: first, providing a data signal and two sets of gamma reference voltages as described in step S401. Then, as described in step S403, at least two driving signals are mapped in the two sets of gamma reference voltages according to the data signal, thereby driving at least one pixel in the panel. In this embodiment, before driving the pixel, the panel driving method of the embodiment further includes providing a scan signal to simultaneously turn on at least two sub-pixels in the pixel, thereby causing the two drivers. The signals respectively drive the two sub-pixels. What is worth mentioning here is that when the panel is a monolithic structure, the two sets of gamma reference voltages are different, and the two driving signals can be different driving polarities, but when the panel When the morphological structure is used, the two sets of gamma reference voltages are the same 'and the two driving signals are the same driving polarity. 201025260_ "A 28703twfl (ioc / ri ^ In summary, the panel driving device and method proposed by the present invention are mainly applied to a panel having a partitioned pixel structure (for example, 2D1G). The panel driving device proposed by the present invention The method separately provides two sets of gamma reference voltages (gammareferencev〇ltage) for the source driver. In this way, when the timing controller provides a data signal to the source driver, the source driver will use the data according to the data. Signaling at least two driving signals having opposite driving polarities in the two sets of gamma reference voltages to respectively drive two sub-halogens in one pixel, and letting the two sub-genus One displays a higher grayscale color and another subpixel displays a lower grayscale color, thereby blending a higher grayscale color with a lower grayscale color to form an intermediate grayscale color. After that, the user can view the image surface of the similar color tone when viewing the image displayed on the liquid crystal display from a front view or a tilt angle. Based on the above disclosure, the panel driving apparatus and method proposed by the present invention can also be applied to a panel having a non-partitioned pixel structure®. Thus, when the timing controller provides a data signal to the source driver The source driver maps two driving signals having the same driving polarity to the two sets of gamma reference voltages according to the data signal, so as to drive two sub-pixels in one pixel. The versatility of the present invention has been met. The present invention has been disclosed in the above-described embodiments, and is not intended to limit the scope of the present invention. Make some changes and refinements, 12 201025260 *--------2 28703twf.doc/n Therefore, the scope of protection of the present invention is subject to the definition of the patent application scope. 1 is a block diagram of a liquid crystal display according to an embodiment of the invention. FIG. 2 is a partial view of a panel of a panel according to an embodiment of the invention. A circuit diagram of a gamma voltage generating unit according to an embodiment of the invention is shown in Fig. 4. Fig. 4 is a flow chart showing a panel driving method according to an embodiment of the present invention. [Description of main components] 100: Liquid crystal display Lu 101: panel 103: gate driver 105: source driver 107: timing controller 109: gamma voltage generating unit in • backlight module Pix: 昼素Μ·main child 昼素次子素素 13 28703twf.doc/n 201025260
Dn〜Dn+3 :資料線 Gn、Gn+1 :掃描線 +/-:驅動極性 STV :起始脈衝 DS :資料訊號 GA1〜GAn、GBl~GBn :伽瑪參考電壓Dn~Dn+3: data line Gn, Gn+1: scan line +/-: drive polarity STV: start pulse DS: data signal GA1~GAn, GBl~GBn: gamma reference voltage
Vdda : 面板的系統電壓 RA1〜RAn、RB1〜RBn :可變電阻 S401〜S403 :本發明一實施例之面板驅動方法的流程 圖各步驟 14Vdda: system voltage of the panel RA1 to RAn, RB1 to RBn: variable resistors S401 to S403: flow of the panel driving method according to an embodiment of the present invention