TW201435852A - Display driving method and display driving circuit - Google Patents
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本發明是有關於一種驅動方法及驅動電路，且特別是有關於一種顯示器驅動方法及顯示器驅動電路。 The present invention relates to a driving method and a driving circuit, and more particularly to a display driving method and a display driving circuit.
針對多媒體社會之急速進步，多半受惠於半導體元件或顯示裝置的飛躍性進步。就顯示器而言，具有高畫質、空間利用效率佳、低消耗功率、無輻射等優越特性之液晶液晶顯示器(Liquid Crystal Display)已逐漸成為市場之主流。而在此先值得一提的是，以現今液晶顯示器的驅動架構中，通常以交流模式的共電極電位(AC mode common voltage)之驅動架構(例如為線反轉的驅動方式)驅動現有中、小尺寸的液晶顯示面板(LCD panel)，而以直流模式的共電極電位(DC mode common voltage)之驅動架構(例如為點反轉顯示技術)驅動現有較大尺寸的液晶顯示面板。 For the rapid advancement of the multimedia society, most of them benefit from the dramatic advancement of semiconductor components or display devices. As far as the display is concerned, a liquid crystal display (Liquid Crystal Display) having superior characteristics such as high image quality, good space utilization efficiency, low power consumption, and no radiation has gradually become the mainstream of the market. What is worth mentioning here is that in the drive architecture of today's liquid crystal displays, the drive mode of the AC mode common voltage (for example, the drive mode of line reversal) is usually driven in the existing mode. A small-sized liquid crystal display panel (LCD panel) drives a conventional large-sized liquid crystal display panel in a DC mode common voltage driving structure (for example, dot inversion display technology).
然而，若以交流模式共電極電位之驅動架構驅動現有中、小尺寸的液晶顯示面板時，雖可致使液晶顯示器整體的消耗功率降低，但是液晶顯示器最終所呈現的畫面品質並不會很精 緻。另外，若以直流模式共電極電位之驅動架構驅動現有較大尺寸的液晶顯示面板時，雖然可改善液晶顯示器的畫面品質，但是液晶顯示器整體的消耗功率也會隨之增加。另一方面，若要提昇顯示品質，以一般固定的交流模式或直流模式的共電極電位之驅動方式亦已不敷使用。 However, if the current medium and small size liquid crystal display panel is driven by the AC mode common electrode potential driving structure, the overall power consumption of the liquid crystal display may be reduced, but the final picture quality of the liquid crystal display is not very fine. To. Further, when a conventional large-sized liquid crystal display panel is driven by a DC-mode common electrode potential driving structure, the picture quality of the liquid crystal display can be improved, but the overall power consumption of the liquid crystal display also increases. On the other hand, if the display quality is to be improved, the driving method of the common electrode potential in the general fixed AC mode or the DC mode is also insufficient.
本發明提供一種顯示器驅動方法，可在同一組顯示裝置上以動態調變共電極的方式來消除顯示異常，提昇顯示品質。 The invention provides a display driving method, which can eliminate display abnormality and improve display quality by dynamically modulating a common electrode on the same group of display devices.
本發明提供一種顯示器驅動電路，可在同一組顯示裝置上以動態調變共電極的方式來消除顯示異常，提昇顯示品質。 The invention provides a display driving circuit, which can eliminate display abnormality and improve display quality by dynamically modulating a common electrode on the same group of display devices.
本發明的一種顯示器驅動方法包括如下步驟。提供一共電極電位。重複執行上述的提供步驟，達一或多次。共電極電位以定義一顯示器之電壓基準。共電極電位係於複數種交流電壓擺幅之間循序切換。複數種交流電壓擺幅當中每一者之提供時間為一至多個畫面長度。 A display driving method of the present invention includes the following steps. A total of electrode potentials are provided. Repeat the above provisioning steps one or more times. The common electrode potential is used to define a voltage reference for a display. The common electrode potential is sequentially switched between a plurality of alternating voltage swings. Each of the plurality of AC voltage swings is provided for one to more picture lengths.
在本發明的一實施例中，上述的複數種交流電壓擺幅係根據顯示器同時具有的極性分佈型態來決定。 In an embodiment of the invention, the plurality of alternating voltage swings described above are determined according to a polarity distribution pattern that the display has at the same time.
在本發明的一實施例中，上述的複數種交流電壓擺幅係根據顯示器同時顯示的影像內容來決定。 In an embodiment of the invention, the plurality of alternating voltage swings are determined according to the image content displayed simultaneously by the display.
本發明的一種顯示器驅動方法包括如下步驟。提供一共電極電位。重複執行上述之提供步驟，達一或多次。共電極電位 以定義一顯示器之電壓基準。共電極電位係於複數種直流電壓位準之間循序切換。複數種直流電壓位準當中每一者之提供時間為一至多個畫面長度。 A display driving method of the present invention includes the following steps. A total of electrode potentials are provided. Repeat the above provided steps one or more times. Common electrode potential To define a voltage reference for a display. The common electrode potential is sequentially switched between a plurality of DC voltage levels. The supply time of each of the plurality of DC voltage levels is one to a plurality of picture lengths.
在本發明的一實施例中，上述的複數種直流電壓位準係根據顯示器同時具有的極性分佈型態來決定。 In an embodiment of the invention, the plurality of DC voltage levels described above are determined according to a polarity distribution pattern that the display has at the same time.
在本發明的一實施例中，上述的複數種直流電壓位準係根據顯示器同時顯示的影像內容來決定。 In an embodiment of the invention, the plurality of DC voltage levels are determined according to the image content displayed simultaneously by the display.
本發明的一種顯示器驅動方法包括如下步驟。提供一共電極電位。重複執行上述的提供步驟，達一或多次。共電極電位以定義一顯示器之電壓基準。共電極電位係於一至多種交流電壓擺幅與一至多種直流電壓位準之間循序切換。一至多種交流電壓擺幅與一至多種直流電壓位準當中每一者之提供時間為一至多個畫面長度。 A display driving method of the present invention includes the following steps. A total of electrode potentials are provided. Repeat the above provisioning steps one or more times. The common electrode potential is used to define a voltage reference for a display. The common electrode potential is sequentially switched between one or more alternating voltage swings and one or more DC voltage levels. The supply time of each of one or more AC voltage swings and one or more DC voltage levels is one to more picture lengths.
在本發明的一實施例中，上述的一至多種交流電壓擺幅與一至多種直流電壓位準係根據顯示器同時具有的極性分佈型態來決定。 In an embodiment of the invention, the one or more AC voltage swings and the one or more DC voltage levels are determined according to a polarity distribution pattern of the display.
在本發明的一實施例中，上述的一至多種交流電壓擺幅與一至多種直流電壓位準係根據顯示器同時顯示的影像內容來決定。 In an embodiment of the invention, the one or more AC voltage swings and the one or more DC voltage levels are determined according to the image content displayed simultaneously by the display.
本發明的一種顯示器驅動電路包括一時序電路以及一共電極電位產生單元。時序電路指示一重複時間單元。共電極電位產生單元提供一共電極電位。共電極電位以定義一顯示器之電 壓基準。共電極電位係於複數種交流電壓擺幅之間循序切換共達重複時間單元。複數種交流電壓擺幅當中每一者之提供時間為一至多個畫面長度。共電極電位產生單元重複執行上述的提供步驟。每一次執行重複時間單元之時間長度，共重複執行一或多次。 A display driving circuit of the present invention includes a sequential circuit and a common electrode potential generating unit. The timing circuit indicates a repeating time unit. The common electrode potential generating unit provides a common electrode potential. Common electrode potential to define the power of a display Pressure benchmark. The common electrode potential is sequentially switched between a plurality of kinds of alternating voltage swings to reach a repeating time unit. Each of the plurality of AC voltage swings is provided for one to more picture lengths. The common electrode potential generating unit repeatedly performs the above-described providing step. The length of time each time the repeating time unit is executed is repeated one or more times.
在本發明的一實施例中，上述的顯示器驅動電路更包括一共電極電位控制單元。共電極電位控制單元根據顯示器上同時具有的極性分佈型態，來決定複數種交流電壓擺幅。 In an embodiment of the invention, the display driving circuit further includes a common electrode potential control unit. The common electrode potential control unit determines a plurality of alternating voltage swings according to the polarity distribution pattern simultaneously on the display.
在本發明的一實施例中，上述的顯示器驅動電路更包括一共電極電位控制單元。共電極電位控制單元根據顯示器上同時顯示的影像內容，來決定複數種交流電壓擺幅。 In an embodiment of the invention, the display driving circuit further includes a common electrode potential control unit. The common electrode potential control unit determines a plurality of AC voltage swings according to the image content displayed simultaneously on the display.
本發明的一種顯示器驅動電路包括一時序電路以及一共電極電位產生單元。時序電路指示一重複時間單元。共電極電位產生單元提供一共電極電位。共電極電位以定義一顯示器之電壓基準。共電極電位係於複數種直流電壓位準之間循序切換共達重複時間單元。複數種直流電壓位準當中每一者之提供時間為一至多個畫面長度。共電極電位產生單元重複執行上述的提供步驟。每一次執行重複時間單元之時間長度，共重複執行一或多次。 A display driving circuit of the present invention includes a sequential circuit and a common electrode potential generating unit. The timing circuit indicates a repeating time unit. The common electrode potential generating unit provides a common electrode potential. The common electrode potential is used to define a voltage reference for a display. The common electrode potential is sequentially switched between a plurality of kinds of DC voltage levels to reach a repeating time unit. The supply time of each of the plurality of DC voltage levels is one to a plurality of picture lengths. The common electrode potential generating unit repeatedly performs the above-described providing step. The length of time each time the repeating time unit is executed is repeated one or more times.
在本發明的一實施例中，上述的顯示器驅動電路更包括一共電極電位控制單元。共電極電位控制單元根據顯示器上同時具有的極性分佈型態，來決定複數種直流電壓位準。 In an embodiment of the invention, the display driving circuit further includes a common electrode potential control unit. The common electrode potential control unit determines a plurality of DC voltage levels according to the polarity distribution pattern simultaneously on the display.
在本發明的一實施例中，上述的顯示器驅動電路更包括一共電極電位控制單元。共電極電位控制單元根據顯示器上同時 顯示的影像內容，來決定複數種直流電壓位準。 In an embodiment of the invention, the display driving circuit further includes a common electrode potential control unit. The common electrode potential control unit is based on the display simultaneously The displayed image content determines a plurality of DC voltage levels.
本發明的一種顯示器驅動電路包括一時序電路以及一共電極電位產生單元。時序電路指示一重複時間單元。共電極電位產生單元提供一共電極電位。共電極電位以定義一顯示器之電壓基準。共電極電位係於一至多種交流電壓擺幅與一或多種直流電壓位準之間循序切換共達重複時間單元。複數種交流電壓擺幅與一至多種直流電壓位準當中每一者之提供時間為一至多個畫面長度。共電極電位產生單元重複執行上述的提供步驟。每一次執行重複時間單元之時間長度，共重複執行一或多次。 A display driving circuit of the present invention includes a sequential circuit and a common electrode potential generating unit. The timing circuit indicates a repeating time unit. The common electrode potential generating unit provides a common electrode potential. The common electrode potential is used to define a voltage reference for a display. The common electrode potential is sequentially switched between one or more alternating voltage swings and one or more direct current voltage levels for a repeating time unit. The supply time of each of the plurality of AC voltage swings and one or more DC voltage levels is one to more picture lengths. The common electrode potential generating unit repeatedly performs the above-described providing step. The length of time each time the repeating time unit is executed is repeated one or more times.
在本發明的一實施例中，上述的顯示器驅動電路更包括一共電極電位控制單元。共電極電位控制單元根據顯示器上同時具有的極性分佈型態，來決定一至多種交流電壓擺幅與一或多種直流電壓位準。 In an embodiment of the invention, the display driving circuit further includes a common electrode potential control unit. The common electrode potential control unit determines one or more AC voltage swings and one or more DC voltage levels according to the polarity distribution pattern simultaneously on the display.
在本發明的一實施例中，上述的顯示器驅動電路更包括一共電極電位控制單元。共電極電位控制單元根據顯示器上同時顯示的影像內容，來決定一至多種交流電壓擺幅與一至多種直流電壓位準。 In an embodiment of the invention, the display driving circuit further includes a common electrode potential control unit. The common electrode potential control unit determines one or more AC voltage swings and one or more DC voltage levels according to the image content displayed simultaneously on the display.
為讓本發明的上述特徵和優點能更明顯易懂，下文特舉實施例，並配合所附圖式作詳細說明如下。 The above described features and advantages of the invention will be apparent from the following description.
100、100’‧‧‧顯示器 100, 100’‧‧ display
110‧‧‧驅動電路 110‧‧‧Drive circuit
111‧‧‧閘極驅動單元 111‧‧‧Gate drive unit
112‧‧‧時序電路 112‧‧‧Sequence Circuit
113‧‧‧源極驅動單元 113‧‧‧Source drive unit
114‧‧‧共電極電位產生單元 114‧‧‧Common electrode potential generating unit
116、116’‧‧‧共電極電位控制單元 116, 116'‧‧‧ Common Electrode Potential Control Unit
118‧‧‧參考電壓產生單元 118‧‧‧reference voltage generating unit
120‧‧‧顯示面板 120‧‧‧ display panel
132‧‧‧影像判斷單元 132‧‧‧Image Judging Unit
134‧‧‧邏輯控制單元 134‧‧‧Logical Control Unit
136‧‧‧查找表 136‧‧‧ lookup table
Tu、Tu’、Tu”‧‧‧共電極電位切換時間單位 Tu, Tu’, Tu”‧‧‧Common electrode potential switching time unit
Tvd_1、Tvd_2、Tvd_N、Tvd_(N+1)、Tvd_(N+2)、Tvd_(N+M)、Tvd_1’、Tvd_2’、Tvd_N’‧‧‧共電極電位型態區間 Tvd_1, Tvd_2, Tvd_N, Tvd_(N+1), Tvd_(N+2), Tvd_(N+M), Tvd_1', Tvd_2', Tvd_N'‧‧‧ common electrode potential type interval
Vcom、Vcom’、Vcom”‧‧‧共電極電位 Vcom, Vcom', Vcom" ‧ ‧ common electrode potential
Vref‧‧‧參考電壓 Vref‧‧‧reference voltage
V_1、V_2、V_3、V_4、V_K、V_(K+1)、V_(K+2)、V_(K+3)、V_(K+M+1)、V_(K+1)V_1’、V_2’、V_N’‧‧‧電壓位準 V_1, V_2, V_3, V_4, V_K, V_(K+1), V_(K+2), V_(K+3), V_(K+M+1), V_(K+1)V_1', V_2 ', V_N'‧‧‧ voltage level
S600、S602、S604、S606‧‧‧多類型共電極驅動方法的步驟 Steps of the S600, S602, S604, S606‧‧‧ multi-type common electrode driving method
圖1A與圖1B繪示本發明不同實施例之顯示器的方塊示意圖。 1A and 1B are block diagrams showing displays of different embodiments of the present invention.
圖2繪示本發明一實施例之交流型態的共電極電位在共電極電位切換時間單位的波形圖。 2 is a waveform diagram of a common electrode potential of an alternating current type in a common electrode potential switching time unit according to an embodiment of the present invention.
圖3繪示本發明一實施例之顯示面板上的極性分佈型態的示意圖。 3 is a schematic diagram showing a polarity distribution pattern on a display panel according to an embodiment of the invention.
圖4繪示本發明一實施例之直流型態的共電極電位在共電極電位切換時間單位的波形圖。 4 is a waveform diagram showing a common electrode potential of a DC type in a common electrode potential switching time unit according to an embodiment of the present invention.
圖5繪示本發明一實施例之交直流混合型態的共電極電位在共電極電位切換時間單位的波形圖。 FIG. 5 is a waveform diagram showing the common electrode potential of the AC-DC hybrid type in the common electrode potential switching time unit according to an embodiment of the present invention.
圖6繪示本發明一實施例之多類型共電極驅動方法的步驟流程圖。 6 is a flow chart showing the steps of a multi-type common electrode driving method according to an embodiment of the present invention.
圖7繪示顯示器之特定驅動期間的時序示意圖。 FIG. 7 is a timing diagram showing a specific driving period of the display.
一般而言，顯示面板主要的驅動方式係利用共電極電位來定義液晶顯示面板之電壓基準，其類型主要可分為交流型態及直流型態的共電極電位。在本發明之範例實施例中，在驅動期間所被提供之共電極電位係分別具有不同的交流電壓擺幅或直流電壓位準，以動態調變共電極的方式來消除顯示異常，提昇顯示品質。 In general, the main driving method of the display panel is to define the voltage reference of the liquid crystal display panel by using the common electrode potential, and the type thereof can be mainly divided into the common electrode potential of the alternating current type and the direct current type. In an exemplary embodiment of the present invention, the common electrode potentials provided during driving have different AC voltage swings or DC voltage levels, respectively, to dynamically modulate the common electrode to eliminate display anomalies and improve display quality. .
圖1A繪示本發明一實施例之顯示器的方塊示意圖。請 參考圖1A，本實施例之顯示器100包括驅動電路110及顯示面板120。驅動電路110接收視訊影像訊號(未繪示)，並據此驅動顯示面板120顯示對應的影像內容。在本實施例中，除了閘極驅動單元111及源極驅動單元113以外，驅動電路110包括一時序電路112、一共電極電位產生單元114、一共電極電位控制單元116以及一參考電壓產生單元118。 FIG. 1A is a block diagram of a display according to an embodiment of the invention. please Referring to FIG. 1A, the display 100 of the present embodiment includes a driving circuit 110 and a display panel 120. The driving circuit 110 receives the video image signal (not shown), and drives the display panel 120 to display the corresponding image content. In the present embodiment, in addition to the gate driving unit 111 and the source driving unit 113, the driving circuit 110 includes a sequential circuit 112, a common electrode potential generating unit 114, a common electrode potential controlling unit 116, and a reference voltage generating unit 118.
顯示面板120係包括一畫素陣列，並由閘極驅動單元111及源極驅動單元113完成其顯示資料掃瞄與資料寫入之功能。共電極電位Vcom係由共電極電位產生單元114、共電極電位控制單元116及參考電壓產生單元118協力產生。電極電位控制單元116係控制共電極電位產生單元114，以使其產生不同的共電極電位Vcom。而參考電壓產生單元118則提供共電極電位產生單元114產生共電極電位Vcom的過程中所需之一或多個參考電壓。 The display panel 120 includes a pixel array, and the gate driving unit 111 and the source driving unit 113 perform the functions of displaying data scanning and data writing. The common electrode potential Vcom is generated in cooperation by the common electrode potential generating unit 114, the common electrode potential control unit 116, and the reference voltage generating unit 118. The electrode potential control unit 116 controls the common electrode potential generating unit 114 to generate different common electrode potentials Vcom. The reference voltage generating unit 118 supplies one or more reference voltages required in the process in which the common electrode potential generating unit 114 generates the common electrode potential Vcom.
在共電極電位控制單元116之控制下，共電極電位產生單元114以一共電極電位切換時間單位Tu為一重複時間單位，提供共電極電位Vcom給顯示面板120，以定義其電壓基準。電極電位切換時間單位Tu係由多個不同類型的複數個共電極電位型態區間構成，而於不同類型的該等共電極電位型態區間中，所被提供之該共電極電位Vcom分別具有不同的交流電壓擺幅或直流電壓位準。另外，共電極電位切換時間單位Tu則可由時序電路112產生，並提供至共電極電位產生單元114及共電極電位控制單元116Tu。 Under the control of the common electrode potential control unit 116, the common electrode potential generating unit 114 supplies a common electrode potential Vcom to the display panel 120 with a common electrode potential switching time unit Tu as a repeating time unit to define its voltage reference. The electrode potential switching time unit Tu system is composed of a plurality of different types of common electrode potential type intervals, and the common electrode potentials Vcom are different in different types of the common electrode potential type intervals. AC voltage swing or DC voltage level. In addition, the common electrode potential switching time unit Tu may be generated by the timing circuit 112 and supplied to the common electrode potential generating unit 114 and the common electrode potential control unit 116Tu.
在共電極電位切換時間單位Tu的長度與當中的複數個共電極電位型態區間的內容可依據各種不同的設計需要來決定。舉例而言，共電極電位控制單元116較佳可根據顯示面板120上不同類型的極性分佈型態或不同的影像內容，來相應地控制共電極電位產生單元114提供具有不同的交流電壓擺幅或直流電壓位準的共電極電位Vcom至顯示面板120。換言之，可根據系統操作狀況，動態地變更共電極電位切換時間單位之種類(時間長度與內容)，以達到系統操作的最佳化。 The content of the common electrode potential switching time unit Tu and the contents of the plurality of common electrode potential type intervals can be determined according to various design needs. For example, the common electrode potential control unit 116 can control the common electrode potential generating unit 114 to provide different AC voltage swings according to different types of polarity distribution patterns or different image contents on the display panel 120. The common electrode potential Vcom of the DC voltage level is to the display panel 120. In other words, the type (time length and content) of the common electrode potential switching time unit can be dynamically changed according to the operating conditions of the system to optimize the system operation.
圖1A亦顯示共電極電位控制單元116之細部結構圖之一實施例。於此實施例中，共電極電位控制單元116包括一影像判斷單元132以及一邏輯控制單元134。影像判斷單元132根據顯示器上所被顯示之影像判斷極性分佈型態之類型或影像之內容，以提供一判斷結果。邏輯控制單元134根據該判斷結果，控制共電極電位產生單元114提供具有不同的交流電壓擺幅的共電極電位Vcom至顯示面板120。如此一來，共電極電位型態區間之個數、各自的時間長度、以及當中分別的共電極電位Vcom之交流電壓擺幅就能根據於顯示器上不同類型的極性分佈型態或影像內容來決定。 FIG. 1A also shows an embodiment of a detailed structure diagram of the common electrode potential control unit 116. In this embodiment, the common electrode potential control unit 116 includes an image determining unit 132 and a logic control unit 134. The image determining unit 132 determines the type of the polarity distribution pattern or the content of the image based on the image displayed on the display to provide a determination result. The logic control unit 134 controls the common electrode potential generating unit 114 to supply the common electrode potential Vcom having different AC voltage swings to the display panel 120 according to the determination result. In this way, the number of common electrode potential type intervals, the respective time lengths, and the AC voltage swings of the respective common electrode potentials Vcom can be determined according to different types of polarity distribution patterns or image contents on the display. .
以顯示器上不同類型的極性分佈型態而言，影像判斷單元13係接收一反轉參考訊號(未繪示)，以獲得每一畫面期間顯示器的極性反轉模式。對應顯示器不同的極性反轉模式，共電極電位產生單元114可經由邏輯控制單元134來設定共電極電位Vcom 之交流電壓擺幅。在此，該反轉參考訊號可經由驅動電路110外部的前一級電路所產生，或者由源極驅動器113所提供。 In terms of different types of polarity distribution patterns on the display, the image determination unit 13 receives an inversion reference signal (not shown) to obtain a polarity inversion mode of the display during each picture. The common electrode potential generating unit 114 can set the common electrode potential Vcom via the logic control unit 134 corresponding to different polarity inversion modes of the display. The AC voltage swing. Here, the inversion reference signal may be generated via a previous stage circuit external to the drive circuit 110 or by the source driver 113.
另一方面，就顯示器上不同的影像內容而言，影像判斷單元134接收一視訊影像訊號(未繪示)，以獲得每一畫面期間顯示器的所顯示影像內容之資訊，該資訊可包括影像畫面的影像解析度、影像亮度、影像頻譜分佈、影像色彩數、影像更新率或顯示模式(即2D影像或3D影像)等的影像內容特性。對應不同的影像內容，共電極電位產生單元114可經由邏輯控制單元134來設定共電極電位Vcom之交流電壓擺幅。在此，該視訊影像訊號可經由驅動電路110外部的前一級電路所產生，或者由源極驅動器113所提供。 On the other hand, for different video content on the display, the image determining unit 134 receives a video image signal (not shown) to obtain information of the displayed image content of the display during each frame, and the information may include an image frame. Image content characteristics such as image resolution, image brightness, image spectral distribution, image color number, image update rate, or display mode (ie, 2D image or 3D image). Corresponding to different image contents, the common electrode potential generating unit 114 can set the AC voltage swing of the common electrode potential Vcom via the logic control unit 134. Here, the video image signal may be generated by a previous stage circuit external to the driving circuit 110 or by the source driver 113.
綜上所述，在驅動期間所被提供之共電極電位可根據應用需求(譬如是影像內容或極性分佈型態)而於不同時間具有不同的交流電壓擺幅或直流電壓位準。結果，可以動態調變共電極的方式消除顯示異常，從而提昇顯示品質。 In summary, the common electrode potentials provided during driving may have different AC voltage swings or DC voltage levels at different times depending on application requirements (such as image content or polarity distribution patterns). As a result, the display common phenomenon can be eliminated by dynamically modulating the common electrode, thereby improving the display quality.
值得注意的是，於圖1A所示之實施例中，電極電位控制單元116係控制共電極電位產生單元114，以使其產生所欲的共電極電位Vcom。於其他實施例中，電極電位控制單元116可改為只控制參考電壓產生單元118，或同時控制兩者，以致使共電極電位產生單元114產生所欲的共電極電位Vcom。 It is to be noted that, in the embodiment shown in FIG. 1A, the electrode potential control unit 116 controls the common electrode potential generating unit 114 to generate the desired common electrode potential Vcom. In other embodiments, the electrode potential control unit 116 may instead control only the reference voltage generating unit 118, or both, to cause the common electrode potential generating unit 114 to generate the desired common electrode potential Vcom.
此外，值得注意的是，於此實施例中，共電極電位切換時間單位Tu係由時序電路112產生並提供至共電極電位產生單元 114及共電極電位控制單元116。然而，於其他實施例中，可根據不同的需要來由不同的電路產生共電極電位切換時間單位Tu，並提供至共電極電位產生單元114、共電極電位控制單元116、參考電壓產生單元118當中之一至多者。舉例而言，於一實施例中，時序電路112僅將共電極電位切換時間單位Tu提供至共電極電位產生單元114。於另一實施例中，共電極電位切換時間單位Tu係由時序電路112產生並提供至共電極電位控制單元116(譬如是內部的影像判斷單元132)，再由共電極電位控制單元116(譬如是內部的邏輯控制單元134)指示共電極電位產生單元共電極電位切換時間單位Tu。 Further, it is worth noting that in this embodiment, the common electrode potential switching time unit Tu is generated by the sequential circuit 112 and supplied to the common electrode potential generating unit. 114 and common electrode potential control unit 116. However, in other embodiments, the common electrode potential switching time unit Tu may be generated by different circuits according to different needs, and provided to the common electrode potential generating unit 114, the common electrode potential control unit 116, and the reference voltage generating unit 118. One of the most. For example, in an embodiment, the sequential circuit 112 supplies only the common electrode potential switching time unit Tu to the common electrode potential generating unit 114. In another embodiment, the common electrode potential switching time unit Tu is generated by the sequential circuit 112 and supplied to the common electrode potential control unit 116 (for example, the internal image determining unit 132), and then by the common electrode potential control unit 116 (for example) The internal logic control unit 134) indicates the common electrode potential generating unit common electrode potential switching time unit Tu.
此外，值得注意的是，驅動電路110當中各電路可實施為單一個積體電路晶片，亦可分開實施為多個積體電路晶片。舉例而言，共電極電位產生單元114、共電極電位控制單元116、參考電壓產生單元118可以實施為與閘極驅動單元111、時序電路112、源極驅動單元112不同的積體電路晶片。 In addition, it should be noted that each of the driving circuits 110 may be implemented as a single integrated circuit chip, or may be separately implemented as a plurality of integrated circuit chips. For example, the common electrode potential generating unit 114, the common electrode potential control unit 116, and the reference voltage generating unit 118 may be implemented as integrated circuit wafers different from the gate driving unit 111, the sequential circuit 112, and the source driving unit 112.
圖1B繪示本發明另一實施例之顯示器的方塊示意圖。請參考圖1A及圖1B，本實施例之顯示器100’類似於圖1A之顯示器100，惟兩者之間主要的差異例如在於本實施例之共電極電位控制單元116’更包括一查找表136。查找表136儲存極性分佈型態之類型或影像內容與共電極電位Vcom之交流電壓擺幅的對應關係，以使邏輯控制單元134在接收到影像判斷單元132所提供之判斷結果後，可更根據查找表136控制共電極電位產生單元114 提供具有不同的交流電壓擺幅的共電極電位Vcom。其他操作細節可由圖1A之相關說明類推而得，在此為簡明起見不多作說明。 FIG. 1B is a block diagram of a display according to another embodiment of the present invention. Referring to FIG. 1A and FIG. 1B, the display 100' of the present embodiment is similar to the display 100 of FIG. 1A, but the main difference between the two is, for example, that the common electrode potential control unit 116' of the present embodiment further includes a lookup table 136. . The lookup table 136 stores the correspondence between the type of the polarity distribution type or the image content and the AC voltage swing of the common electrode potential Vcom, so that the logic control unit 134 can further determine the result of the judgment provided by the image determination unit 132. The lookup table 136 controls the common electrode potential generating unit 114 A common electrode potential Vcom having different AC voltage swings is provided. Other operational details may be derived analogously to the related description of Figure 1A, and are not described here for the sake of brevity.
圖2繪示本發明一實施例之交流型態的共電極電位在共電極電位切換時間單位的波形圖。請參考圖1A及圖2，在本實施例中，共電極電位產生單元114係以共電極電位切換時間單位Tu為一重複時間單位，提供具有不同的交流電壓擺幅的共電極電位Vcom，以定義顯示面板120之電壓基準。 2 is a waveform diagram of a common electrode potential of an alternating current type in a common electrode potential switching time unit according to an embodiment of the present invention. Referring to FIG. 1A and FIG. 2, in the present embodiment, the common electrode potential generating unit 114 provides a common electrode potential Vcom having different AC voltage swings by using the common electrode potential switching time unit Tu as a repeating time unit. A voltage reference of the display panel 120 is defined.
本實施例之共電極電位切換時間單位Tu包括複數個交流類型的共電極電位型態區間Tvd_1、Tvd_2、…、Tvd_N，於其中所被提供之共電極電位Vcom係分別具有不同的交流電壓擺幅。並且，每一共電極電位型態區間之時間長度係包括一至多個畫面長度。 The common electrode potential switching time unit Tu of the present embodiment includes a plurality of common electrode potential type intervals Tvd_1, Tvd_2, ..., Tvd_N of the alternating current type, and the common electrode potential Vcom provided therein has different alternating current voltage swings. . Moreover, the length of time of each common electrode potential type interval includes one to more picture lengths.
舉例而言，共電極電位型態區間Tvd_1之時間長度係包括A個畫面長度，於其中所被提供之共電極電位Vcom係在電壓位準V_1與V_2之間振盪的交流方波。共電極電位型態區間Tvd_2之時間長度係包括B個畫面長度，於其中所被提供之共電極電位Vcom係在電壓位準V_3與V_4之間振盪的交流方波。共電極電位型態區間Tvd_N之時間長度係包括X個畫面長度，於其中所被提供之共電極電位Vcom係在電壓位準V_K與V_(K+1)之間振盪的交流方波。在此，交流電壓擺幅例如是指電壓位準V_1與V_2之間的差值、電壓位準V_3與V_4之間的差值、…、以及V_K與V_(K+1)之間的差值。 For example, the length of the common electrode potential type interval Tvd_1 includes A picture lengths, and the common electrode potential Vcom supplied therein is an alternating current wave that oscillates between the voltage levels V_1 and V_2. The length of the common electrode potential type interval Tvd_2 includes B picture lengths, and the common electrode potential Vcom supplied therein is an alternating current wave that oscillates between the voltage levels V_3 and V_4. The length of the common electrode potential type interval Tvd_N includes X picture lengths, and the common electrode potential Vcom supplied therein is an alternating current square wave oscillating between voltage levels V_K and V_(K+1). Here, the AC voltage swing is, for example, the difference between the voltage levels V_1 and V_2, the difference between the voltage levels V_3 and V_4, ..., and the difference between V_K and V_(K+1). .
綜合上述，本實施例之共電極電位Vcom係以至少兩種以上不同的交流電壓擺幅在共電極電位切換時間單位Tu內做切換，並以此為一重複時間單位驅動顯示面板120，以定義其電壓基準。 In summary, the common electrode potential Vcom of the embodiment is switched in the common electrode potential switching time unit Tu by at least two different AC voltage swings, and the display panel 120 is driven as a repeating time unit to define Its voltage reference.
圖3繪示本發明一實施例之顯示面板上的極性分佈型態的示意圖。請參照圖1A及圖3，在本實施例中，顯示面板120在共電極電位型態區間Tvd_1、Tvd_2、…、Tvd_N例如是在圖3所繪示的兩種行反轉與兩種單點反轉之間進行循環切換。舉例而言，在共電極電位型態區間Tvd_1，顯示面板120上之極性分佈型態例如是第一行反轉型態。在共電極電位型態區間Tvd_2，顯示面板120上之極性分佈型態例如是第一單點反轉型態。在共電極電位型態區間Tvd_3，顯示面板120上之極性分佈型態例如是第二行反轉型態。在共電極電位型態區間Tvd_4，顯示面板120上之極性分佈型態例如是第二單點反轉型態。至於共電極電位型態區間Tvd_5、Tvd_6、…、Tvd_N，顯示面板120上之極性分佈型態的切換當可依上述方式類推，惟本發明之極性分佈型態並不限於在行反轉與單點反轉兩種型態之間切換。在其他實施例中，於顯示面板120上不同類型的極性分佈型態當中至少之一者係選自下列類型之極性分佈型態：列反轉(Row Inversion)、行反轉(Column Inversion)、單點反轉(Single Dot Inversion)、多點反轉(Multiple Dot Inversion)、多點加多點反轉(M+N Dot Inversion)、以及圖框反轉(Frame Inversion)。 3 is a schematic diagram showing a polarity distribution pattern on a display panel according to an embodiment of the invention. Referring to FIG. 1A and FIG. 3 , in the embodiment, the common electrode potential type sections Tvd_1, Tvd_2, . . . , Tvd_N of the display panel 120 are, for example, two kinds of row inversions and two kinds of single points illustrated in FIG. 3 . Cycle through between inversions. For example, in the common electrode potential type interval Tvd_1, the polarity distribution pattern on the display panel 120 is, for example, a first row inversion pattern. In the common electrode potential type interval Tvd_2, the polarity distribution pattern on the display panel 120 is, for example, the first single-point inversion type. In the common electrode potential type interval Tvd_3, the polarity distribution pattern on the display panel 120 is, for example, a second line inversion type. In the common electrode potential type interval Tvd_4, the polarity distribution pattern on the display panel 120 is, for example, a second single dot inversion type. As for the common electrode potential type intervals Tvd_5, Tvd_6, ..., Tvd_N, the switching of the polarity distribution patterns on the display panel 120 can be analogized in the above manner, but the polarity distribution pattern of the present invention is not limited to the line inversion and the single Switch between two types of dot inversion. In other embodiments, at least one of the different types of polarity distribution patterns on the display panel 120 is selected from the following types of polarity distribution types: Row Inversion, Column Inversion, Single Dot Inversion, Multiple Dot Inversion, Multipoint Inversion (M+N Dot Inversion), and Frame Inversion.
相應於圖3所示的極性分佈型態，顯示器100係以共電極電位切換時間單位Tu為一重複時間單位而改變其極性分佈型態，其中第一個共電極電位切換時間單位Tu由共電極電位型態區間Tvd_1、Tvd_2、…、Tvd_4構成，分別對應於上述四種類型的極性分佈型態；第二個共電極電位切換時間單位Tu由共電極電位型態區間Tvd_5、Tvd_6、…、Tvd_8構成，分別對應於上述四種類型的極性分佈型態；依此類推。 Corresponding to the polarity distribution pattern shown in FIG. 3, the display 100 changes its polarity distribution pattern by the common electrode potential switching time unit Tu as a repeating time unit, wherein the first common electrode potential switching time unit Tu is from the common electrode. The potential type intervals Tvd_1, Tvd_2, ..., Tvd_4 are respectively formed corresponding to the above four types of polarity distribution patterns; the second common electrode potential switching time unit Tu is from the common electrode potential type intervals Tvd_5, Tvd_6, ..., Tvd_8 The composition corresponds to the above four types of polarity distribution patterns; and so on.
在上述實施例中，共電極電位產生單元114在共電極電位切換時間單位Tu內係提供具有不同的交流電壓擺幅的共電極電位Vcom。在另一實施例中，共電極電位產生單元114亦可提供具有不同的直流電壓位準的共電極電位Vcom來定義顯示面板120之電壓基準。 In the above embodiment, the common electrode potential generating unit 114 supplies the common electrode potentials Vcom having different AC voltage swings in the common electrode potential switching time unit Tu. In another embodiment, the common electrode potential generating unit 114 can also provide a common electrode potential Vcom having different DC voltage levels to define a voltage reference of the display panel 120.
圖4繪示本發明一實施例之直流型態的共電極電位在共電極電位切換時間單位的波形圖。在本實施例中，於不同類型的共電極電位型態區間Tvd_1’、Tvd_2’、…、Tvd_N’，所被提供之共電極電位Vcom’係分別具有不同的直流電壓位準。 4 is a waveform diagram showing a common electrode potential of a DC type in a common electrode potential switching time unit according to an embodiment of the present invention. In the present embodiment, the common electrode potentials Vcom' supplied with different types of common electrode potential type intervals Tvd_1', Tvd_2', ..., Tvd_N' have different DC voltage levels, respectively.
詳細而言，本實施例之共電極電位切換時間單位Tu’包括複數個直流類型的共電極電位型態區間Tvd_1’、Tvd_2’、…、Tvd_N’，於其中所被提供之共電極電位Vcom’係分別具有不同的直流電壓位準。並且，每一共電極電位型態區間之時間長度係包括一至多個畫面長度。 In detail, the common electrode potential switching time unit Tu' of the present embodiment includes a plurality of common-electrode potential type intervals Tvd_1', Tvd_2', ..., Tvd_N' of the DC type, and the common electrode potential Vcom' provided therein They have different DC voltage levels. Moreover, the length of time of each common electrode potential type interval includes one to more picture lengths.
舉例而言，共電極電位型態區間Tvd_1’之時間長度係 包括C個畫面長度，於其中所被提供之共電極電位Vcom’係一位準為V_1’的直流電壓。共電極電位型態區間Tvd_2’之時間長度係包括D個畫面長度，於其中所被提供之共電極電位Vcom’係一位準為V_2’的直流電壓。共電極電位型態區間Tvd_N之時間長度係包括Y個畫面長度，於其中所被提供之共電極電位Vcom’係一位準為V_N’的直流電壓。 For example, the length of the common electrode potential type interval Tvd_1' is The C picture lengths are included, and the common electrode potential Vcom' supplied therein is a DC voltage of a level of V_1'. The length of the common electrode potential type interval Tvd_2' includes D picture lengths, and the common electrode potential Vcom' supplied therein is a direct current voltage of V_2'. The length of the common electrode potential type interval Tvd_N includes Y picture lengths, and the common electrode potential Vcom' supplied therein is a DC voltage of a bit V_N'.
因此，本實施例之共電極電位Vcom’係以至少三種以上不同的直流電壓位準在共電極電位切換時間單位內做切換，並以此為一重複時間單位驅動顯示面板120，以定義其電壓基準。 Therefore, the common electrode potential Vcom' of the embodiment is switched in the common electrode potential switching time unit by at least three different DC voltage levels, and the display panel 120 is driven for a repetition time unit to define the voltage thereof. Benchmark.
惟應注意者係，在本實施例中，共電極電位型態區間之個數、各自的時間長度、以及當中分別的共電極電位Vcom’之直流電壓位準係根據於顯示器上不同類型的極性分佈型態或影像內容來決定，其決定方式類似於共電極電位為交流電壓的實施例(即圖2的實施例)，在此便不再贅述。 However, it should be noted that in the present embodiment, the number of common electrode potential type intervals, the respective time lengths, and the DC voltage levels of the respective common electrode potentials Vcom' are based on different types of polarities on the display. The distribution pattern or image content is determined in a manner similar to the embodiment in which the common electrode potential is an alternating voltage (ie, the embodiment of FIG. 2), and will not be described herein.
圖5繪示本發明一實施例之交直流混合型態的共電極電位在共電極電位切換時間單位的波形圖。在本實施例中，於不同類型的共電極電位型態區間Tvd_1、Tvd_2、…、Tvd_(N+M)，所被提供之共電極電位Vcom’係分別具有不同的交流電壓擺幅或直流電壓位準。 FIG. 5 is a waveform diagram showing the common electrode potential of the AC-DC hybrid type in the common electrode potential switching time unit according to an embodiment of the present invention. In this embodiment, the common electrode potentials Vcom' are provided with different AC voltage swings or DC voltages in different types of common electrode potential type intervals Tvd_1, Tvd_2, ..., Tvd_(N+M). Level.
詳細而言，本實施例之共電極電位切換時間單位Tu”包括複數個交流類型的共電極電位型態區間Tvd_1、Tvd_2、…、Tvd_N以及複數個交流類型的共電極電位型態區間Tvd_(N+1)、 Tvd_(N+2)、…、Tvd_(N+M)。在共電極電位型態區間Tvd_1、Tvd_2、…、Tvd_N，所被提供之共電極電位Vcom”係分別具有不同的交流電壓擺幅。在共電極電位型態區間Tvd_(N+1)、Tvd_(N+2)、…、Tvd_(N+M)，所被提供之共電極電位Vcom”係分別具有不同的直流電壓位準。 In detail, the common electrode potential switching time unit Tu" of the present embodiment includes a plurality of alternating current type common electrode potential type intervals Tvd_1, Tvd_2, ..., Tvd_N, and a plurality of alternating current type common electrode potential type intervals Tvd_(N +1), Tvd_(N+2), ..., Tvd_(N+M). In the common electrode potential type interval Tvd_1, Tvd_2, ..., Tvd_N, the supplied common electrode potential Vcom" has different AC voltage swings respectively. In the common electrode potential type interval Tvd_(N+1), Tvd_( N+2), ..., Tvd_(N+M), the supplied common electrode potential Vcom" have different DC voltage levels, respectively.
在本實施例中，直流類型的共電極電位型態區間Tvd_(N+1)、Tvd_(N+2)、…、Tvd_(N+M)係循序安排於交流類型的共電極電位型態區間Tvd_1、Tvd_2、…、Tvd_N之後，但本發明不限於此。在另一實施例中，交流類型的共電極電位型態區間亦可循序地被安排在直流類型的共電極電位型態區間之後。 In this embodiment, the common-electrode potential type intervals Tvd_(N+1), Tvd_(N+2), ..., Tvd_(N+M) of the DC type are sequentially arranged in the common electrode potential type interval of the alternating current type. Tvd_1, Tvd_2, ..., Tvd_N, but the invention is not limited thereto. In another embodiment, the common electrode potential type interval of the alternating current type may also be sequentially arranged after the common electrode potential type interval of the direct current type.
因此，本實施例之共電極電位Vcom”係以至少兩種以上不同的交流電壓擺幅與至少三種以上不同的直流電壓位準在共電極電位切換時間單位Tu”內做切換，並以此為一重複時間單位驅動顯示面板120，以定義其電壓基準。 Therefore, the common electrode potential Vcom" of the embodiment is switched in at least two different AC voltage swings and at least three different DC voltage levels in the common electrode potential switching time unit Tu", and The display panel 120 is driven by a repeating time unit to define its voltage reference.
惟應注意者係，在本實施例中，共電極電位型態區間之個數、各自的時間長度、以及當中分別的共電極電位Vcom”之交流電壓擺幅及直流電壓位準係根據於顯示器上不同類型的極性分佈型態或影像內容來決定，其決定方式類似於共電極電位為交流電壓的實施例(即圖2的實施例)，或共電極電位為直流電壓的實施例(即圖4的實施例)在此便不再贅述。 However, it should be noted that in the present embodiment, the number of common electrode potential type intervals, the respective time lengths, and the AC voltage swings and DC voltage levels of the respective common electrode potentials Vcom" are based on the display. Different types of polarity distribution patterns or image content are determined in a manner similar to the embodiment in which the common electrode potential is an alternating voltage (ie, the embodiment of FIG. 2), or the embodiment in which the common electrode potential is a direct current voltage (ie, a diagram) The embodiment of 4) will not be described here.
圖6繪示本發明一實施例之多類型共電極驅動方法的步驟流程圖。請參照圖1A及圖6，本實施例之多類型共電極驅動方 法例如用於驅動圖1A或圖1B之顯示器。以圖1A之顯示器100及圖5的交直流混合型態的共電極電位為例。多類型共電極驅動方法包括如下步驟。首先，在步驟S600中，以共電極電位Vcom”驅動顯示器100。其中，本實施例之共電極電位Vcom”在共電極電位切換時間單位Tu”內具有不同的交流電壓擺幅及直流電壓位準。在其他實施例中，共電極電位在共電極電位切換時間單位Tu’’內可僅具有不同的交流電壓擺幅或直流電壓位準。接著，在步驟S602中，判斷顯示器100上目前畫面的極性分佈型態或影像內容。之後，在步驟S604中，根據所判斷的極性分佈型態或影像內容，來調整，選擇調整共電極電位Vcom”的交流電壓擺幅或直流電壓位準兩者至少其中之一。繼之，在步驟S606中，提供共電極電位Vcom”至顯示面板120，以定義顯示器100之電壓基準。 6 is a flow chart showing the steps of a multi-type common electrode driving method according to an embodiment of the present invention. Referring to FIG. 1A and FIG. 6, the multi-type common electrode driving method of this embodiment The method is for example used to drive the display of Figure 1A or Figure 1B. Taking the common electrode potential of the display 100 of FIG. 1A and the AC-DC hybrid type of FIG. 5 as an example. The multi-type common electrode driving method includes the following steps. First, in step S600, the display 100 is driven at the common electrode potential Vcom". The common electrode potential Vcom" of the present embodiment has different AC voltage swings and DC voltage levels in the common electrode potential switching time unit Tu". In other embodiments, the common electrode potential may have only different AC voltage swings or DC voltage levels within the common electrode potential switching time unit Tu′′. Next, in step S602, the current screen on the display 100 is determined. The polarity distribution pattern or the image content. Then, in step S604, according to the determined polarity distribution pattern or image content, the AC voltage swing or the DC voltage level of the adjustment common electrode potential Vcom" is selected and adjusted. one of them. Next, in step S606, the common electrode potential Vcom" is supplied to the display panel 120 to define the voltage reference of the display 100.
圖7繪示顯示器之特定驅動期間的時序示意圖。在該特定的驅動期間，共電極電位產生單元114係以共電極電位切換時間單位為一重複時間單位，提供共電極電位Vcom以定義顯示面板120之電壓基準。請參照圖1A-1B、圖6及圖7，在本實施例中，當進行完步驟S606後，多類型共電極驅動方法會回到步驟S602，以繼續判斷顯示器100上目前畫面的極性分佈型態或影像內容。因此，在該特定的驅動期間內，共電極電位控制單元116係根據顯示器100上不同類型的極性分佈型態或不同的影像內容來控制共電極電位產生單元114，以使共電極電位產生單元114以共電極電位切換時間單位為一重複時間單位，提供共電極電位Vcom”至 顯示面板120，以定義顯示器100之電壓基準，如圖7所示。 FIG. 7 is a timing diagram showing a specific driving period of the display. During this particular driving period, the common electrode potential generating unit 114 provides the common electrode potential Vcom to define the voltage reference of the display panel 120 with the common electrode potential switching time unit being a repeating time unit. Referring to FIG. 1A-1B, FIG. 6 and FIG. 7, in this embodiment, after step S606 is performed, the multi-type common electrode driving method returns to step S602 to continue to determine the polarity distribution pattern of the current picture on the display 100. State or image content. Therefore, during the specific driving period, the common electrode potential control unit 116 controls the common electrode potential generating unit 114 according to different types of polarity distribution patterns or different image contents on the display 100, so that the common electrode potential generating unit 114 The common electrode potential switching time unit is a repeating time unit, and the common electrode potential Vcom" is supplied to The display panel 120 is used to define the voltage reference of the display 100, as shown in FIG.
在本實施例中，重複時間單位例如是圖2的共電極電位切換時間單位Tu，圖4的共電極電位切換時間單位Tu’，或圖5的共電極電位切換時間單位Tu”。另外，本發明之實施例的多類型共電極驅動方法可以由圖1A至圖5實施例之敘述中獲致足夠的教示、建議與實施說明，因此不再贅述。 In the present embodiment, the repetition time unit is, for example, the common electrode potential switching time unit Tu of FIG. 2, the common electrode potential switching time unit Tu' of FIG. 4, or the common electrode potential switching time unit Tu" of FIG. 5. The multi-type common electrode driving method of the embodiment of the invention can be sufficiently taught, suggested and implemented by the description of the embodiment of FIG. 1A to FIG. 5, and therefore will not be described again.
綜上所述，在本發明之範例實施例中，共電極電位產生單元在驅動期間所提供之共電極電位係分別具有不同的交流電壓擺幅或直流電壓位準，以動態調變共電極電位的方式來消除顯示器之顯示異常，以提昇其顯示品質。 In summary, in an exemplary embodiment of the present invention, the common electrode potential generating unit provided during the driving has different AC voltage swings or DC voltage levels to dynamically modulate the common electrode potential. The way to eliminate the display anomaly of the display to improve its display quality.
雖然本發明已以實施例揭露如上，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內，當可作些許之更動與潤飾，故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。 Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.
Tu”‧‧‧共電極電位切換時間單位 Tu"‧‧‧Common electrode potential switching time unit
Tvd_1、Tvd_2、Tvd_N、Tvd_(N+1)、Tvd_(N+2)、Tvd_(N+M)‧‧‧共電極電位型態區間 Tvd_1, Tvd_2, Tvd_N, Tvd_(N+1), Tvd_(N+2), Tvd_(N+M)‧‧‧ common electrode potential type interval
Vcom”‧‧‧共電極電位 Vcom"‧‧‧ common electrode potential
V_1、V_2、V_3、V_4、V_K、V_(K+1)、V_(K+2)、V_(K+3)、V_(K+M+1)‧‧‧電壓位準 V_1, V_2, V_3, V_4, V_K, V_(K+1), V_(K+2), V_(K+3), V_(K+M+1)‧‧‧ voltage level
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