TWI386740B - Liquid crystal display device and image display method thereof - Google Patents

Liquid crystal display device and image display method thereof Download PDF

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TWI386740B
TWI386740B TW96119871A TW96119871A TWI386740B TW I386740 B TWI386740 B TW I386740B TW 96119871 A TW96119871 A TW 96119871A TW 96119871 A TW96119871 A TW 96119871A TW I386740 B TWI386740 B TW I386740B
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liquid crystal
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display device
crystal display
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TW200848891A (en
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Ming Feng Hsieh
Cheming Hsu
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Chimei Innolux Corp
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Description

液晶顯示裝置及其影像顯示方法Liquid crystal display device and image display method thereof

本發明係關於一種液晶顯示裝置及其影像顯示方法。The present invention relates to a liquid crystal display device and an image display method thereof.

液晶顯示裝置具有重量輕、功率消耗少及低輻射等的優點,因此已經漸漸地取代傳統陰極射線管顯示裝置,並且應用至許多種類之電子產品中,例如筆記型電腦、液晶電視及液晶螢幕等等。The liquid crystal display device has the advantages of light weight, low power consumption, low radiation, etc., and thus has gradually replaced the conventional cathode ray tube display device and is applied to many kinds of electronic products such as a notebook computer, a liquid crystal television, and a liquid crystal screen. Wait.

就液晶顯示裝置而言,由於液晶顯示裝置係利用液晶分子在不同排列狀態下,對光線具有不同的偏振或折射效果的特性來控制光線的穿透量,進而使液晶顯示裝置得以產生豐富的影像。但是,液晶顯示裝置在播放動態影像時,經常會出現影像的輪廓模糊不清或者畫面出現拖影的情形。此乃因液晶本身的反應速度較慢,且由於液晶顯示裝置是屬於持續型式(hold-type)的發光模式,因此,當使用者在觀看液晶顯示裝置所播放的動態影像時,往往會因人眼的積分行為模式,而使顯示畫面產生邊緣殘像(edge blur)的問題。In the liquid crystal display device, since the liquid crystal display device uses the characteristics that the liquid crystal molecules have different polarization or refraction effects on the light in different arrangement states, the amount of light penetration is controlled, thereby enabling the liquid crystal display device to generate rich images. . However, when a liquid crystal display device plays a moving image, it often occurs that the outline of the image is blurred or the image is smeared. This is because the reaction speed of the liquid crystal itself is slow, and since the liquid crystal display device is in a hold-type light-emitting mode, when the user views the motion image played by the liquid crystal display device, it is often caused by a person. The integral behavior pattern of the eye causes the display screen to have an edge blur problem.

請參考圖1,圖1為習知液晶顯示裝置1之部分等效電路圖。液晶顯示裝置1包含有一開關單元16、一液晶電容151、一儲存電容152、至少一資料線12、至少一掃瞄線11、一儲存電極線14及一共同電極線13。此外,液晶顯示裝置1更包含有一資料線驅動電路17及一掃瞄線驅動電路18與其配合應用。Please refer to FIG. 1. FIG. 1 is a partial equivalent circuit diagram of a conventional liquid crystal display device 1. The liquid crystal display device 1 includes a switch unit 16, a liquid crystal capacitor 151, a storage capacitor 152, at least one data line 12, at least one scan line 11, a storage electrode line 14, and a common electrode line 13. In addition, the liquid crystal display device 1 further includes a data line driving circuit 17 and a scan line driving circuit 18 for use in conjunction therewith.

開關單元16係具有一閘極161、一源極162及一汲極163。其中,閘極161係與掃瞄線11電性連接,源極162係與資料線12電性連接,汲極163係分別與液晶電容151及儲存電容152電性連接。資料線驅動電路17係與資料線12電性連接,且提供一影像資料經由資料線12及開關單元16而傳送至液晶電容151及儲存電容152。掃瞄線驅動電路18係與掃瞄線11電性連接,並提供一驅動電壓經由掃瞄線11而控制開關單元16。The switch unit 16 has a gate 161, a source 162 and a drain 163. The gate 161 is electrically connected to the scan line 11 , the source 162 is electrically connected to the data line 12 , and the drain 163 is electrically connected to the liquid crystal capacitor 151 and the storage capacitor 152 . The data line driving circuit 17 is electrically connected to the data line 12, and provides an image data to the liquid crystal capacitor 151 and the storage capacitor 152 via the data line 12 and the switch unit 16. The scan line driving circuit 18 is electrically connected to the scan line 11 and provides a driving voltage to control the switching unit 16 via the scan line 11.

液晶電容151分別與共同電極線13、汲極163及儲存電容152電性連接,儲存電容152分別與儲存電極線14、汲極163及液晶電容151電性連接。此外,儲存電極線14與共同電極線13係分別傳送一共同電壓。The liquid crystal capacitors 151 are electrically connected to the common electrode line 13, the drain 163 and the storage capacitor 152, respectively, and the storage capacitor 152 is electrically connected to the storage electrode line 14, the drain 163 and the liquid crystal capacitor 151, respectively. Further, the storage electrode line 14 and the common electrode line 13 respectively transmit a common voltage.

當掃瞄線驅動電路18傳送一驅動電壓至掃瞄線11並使開關單元16導通時,資料線驅動電路17則透過資料線12傳送一影像資料至液晶電容151。此外,儲存電容152係儲存一電壓來補償液晶顯示裝置1中因開關單元16所產生之漏電流,以維持液晶顯示裝置1的電壓穩定。When the scan line driving circuit 18 transmits a driving voltage to the scanning line 11 and turns on the switching unit 16, the data line driving circuit 17 transmits an image data to the liquid crystal capacitor 151 through the data line 12. In addition, the storage capacitor 152 stores a voltage to compensate for leakage current generated by the switching unit 16 in the liquid crystal display device 1 to maintain the voltage of the liquid crystal display device 1 stable.

承上,液晶顯示裝置顯示影像圖框的頻率通常係為60Hz,而為了解決液晶顯示裝置的邊緣殘像問題,習知的作法通常是在相鄰的影像圖框(image frame)之間插入一黑畫面(black image)。然而為了使人眼不會感受畫面的閃爍,負責提供影像資料的資料線驅動電路的時脈頻率必需增加一倍,也就是說,液晶顯示裝置的影像圖框時間必須由原來的頻率60Hz倍頻為頻率120Hz。這種高時脈頻率的資料線驅動電路不但不容易製作,且會發生液晶分子扭轉時間不夠的問題。In the above, the frequency of displaying the image frame of the liquid crystal display device is usually 60 Hz, and in order to solve the problem of the edge afterimage of the liquid crystal display device, it is conventional practice to insert a picture between adjacent image frames. Black image. However, in order for the human eye not to feel the flicker of the picture, the clock frequency of the data line driving circuit responsible for providing the image data must be doubled, that is, the image frame time of the liquid crystal display device must be multiplied by the original frequency of 60 Hz. The frequency is 120Hz. Such a data line driving circuit with a high clock frequency is not easy to manufacture, and there is a problem that the twisting time of the liquid crystal molecules is insufficient.

此外,在相鄰的影像圖框之間插入一黑畫面,會使黑畫面插入率(black-inset-ratio)固定為50%,也就是說,液晶顯示裝置有一半的時間必需顯示黑畫面,如此會使液晶顯示裝置的亮度降低,且黑畫面插入率為50%並非人眼最適應的比率。因此,如何提供一種無需倍頻且能夠改善液晶顯示裝置的邊緣殘像問題的液晶顯示裝置,實屬當前重要課題之一。In addition, inserting a black screen between adjacent image frames will fix the black-inset-ratio to 50%, that is, the liquid crystal display device must display a black screen halfway. This causes the brightness of the liquid crystal display device to be lowered, and the black picture insertion rate of 50% is not the most suitable ratio for the human eye. Therefore, how to provide a liquid crystal display device which does not require frequency doubling and which can improve the edge afterimage problem of a liquid crystal display device is one of the current important issues.

有鑑於上述課題,本發明之目的為提供一種能消除邊緣殘像的液晶顯示裝置及其影像顯示方法。In view of the above problems, an object of the present invention is to provide a liquid crystal display device capable of eliminating edge residual images and an image display method therefor.

緣是,為達上述目的,依本發明之一種液晶顯示裝置係包含有一掃瞄線、一資料線、一輔助電極線、一像素電容、一第一開關單元及一第二開關單元。其中,資料線係垂直於掃瞄線、輔助電極線係平行於資料線,而像素電容係設置於掃瞄線與資料線之交點附近。第一開關單元係分別與掃瞄線、資料線及像素電容電性連接,其中一第一子影像資料係從資料線經由第一開關單元傳送至像素電容;第二開關單元係分別與輔助電極線、掃瞄線及像素電容電性連接,其中一第二子影像資料從掃瞄線係經由第二開關單元傳送至像素電容。In order to achieve the above object, a liquid crystal display device according to the present invention comprises a scan line, a data line, an auxiliary electrode line, a pixel capacitor, a first switching unit and a second switching unit. The data line is perpendicular to the scan line and the auxiliary electrode line is parallel to the data line, and the pixel capacitance is set near the intersection of the scan line and the data line. The first switching unit is electrically connected to the scan line, the data line and the pixel capacitor respectively, wherein a first sub-image data is transmitted from the data line to the pixel capacitor via the first switching unit; and the second switching unit is respectively connected to the auxiliary electrode The line, the scan line and the pixel capacitor are electrically connected, wherein a second sub-image data is transmitted from the scan line to the pixel capacitor via the second switch unit.

為達上述目的,依本發明之另一種液晶顯示裝置係包含有一第一掃瞄線、一第二掃瞄線、一資料線、一輔助電極線、一像素電容、一第一開關單元及一第二開關單元。其中,第二掃瞄線係平行於第一掃瞄線,資料線係垂直於第一掃瞄線,輔助電極線係平行於資料線,而像素電容係設置在第一掃瞄線與資料線之交點附近。第一開關單元係分別與第一掃瞄線、資料線及像素電容電性連接,其中一第一子影像資料係從資料線經由第一開關單元傳送至像素電容。第二開關單元係分別與輔助電極線、第二掃瞄線及像素電容電性連接,其中一第二影像資料係從第二掃瞄線經由第二開關單元傳送至像素電容。In order to achieve the above object, another liquid crystal display device according to the present invention comprises a first scan line, a second scan line, a data line, an auxiliary electrode line, a pixel capacitor, a first switch unit and a The second switching unit. The second scan line is parallel to the first scan line, the data line is perpendicular to the first scan line, the auxiliary electrode line is parallel to the data line, and the pixel capacitance is set on the first scan line and the data line. Near the intersection. The first switching unit is electrically connected to the first scan line, the data line and the pixel capacitor, wherein a first sub-image data is transmitted from the data line to the pixel capacitor via the first switching unit. The second switching unit is electrically connected to the auxiliary electrode line, the second scanning line and the pixel capacitor, wherein a second image data is transmitted from the second scanning line to the pixel capacitor via the second switching unit.

另外,為達上述目的,依據本發明之一種液晶顯示裝置的影像顯示方法,其係執行於一影像圖框時間,其中影像圖框時間係區分為一第一子影像圖框時間及一第二子影像圖框時間。影像顯示方法係包括下列步驟:於第一子影像圖框時間經由一第一開關單元傳送一第一子影像資料至一像素電容;以及於第二子影像圖框時間經由一第二開關單元傳送一第二子影像資料至像素電容。In addition, in order to achieve the above object, an image display method for a liquid crystal display device according to the present invention is performed at an image frame time, wherein the image frame time is divided into a first sub-image frame time and a second Sub-image frame time. The image display method includes the steps of: transmitting a first sub-image data to a pixel capacitor via a first switching unit at a first sub-picture frame time; and transmitting the second sub-picture frame time via a second switching unit at a second sub-picture frame time A second sub-image data to the pixel capacitor.

承上所述,因依本發明之一種液晶顯示裝置及其影像顯示方法,藉由第二開關單元來寫入黑畫面資料,不只可改善邊緣殘像的問題,更可使資料線驅動電路無需倍頻就可插入黑畫面,故能降低液晶顯示裝置的成本,且能夠調整影像資料與黑畫面資料之間的顯示時間比例。As described above, according to the liquid crystal display device and the image display method thereof according to the present invention, the black switch data is written by the second switch unit, which not only improves the problem of the edge afterimage, but also eliminates the need for the data line drive circuit. The multiplier can be inserted into the black screen, so that the cost of the liquid crystal display device can be reduced, and the display time ratio between the image data and the black screen material can be adjusted.

以下將參照相關圖式,說明依據本發明較佳實施例之液晶顯示裝置及其影像顯示方法。Hereinafter, a liquid crystal display device and an image display method thereof according to a preferred embodiment of the present invention will be described with reference to the related drawings.

請參考圖2所示,圖2為依據本發明較佳實施例液晶顯示裝置2之一部分等效電路示意圖。液晶顯示裝置2係包含有一掃瞄線21、一資料線22、一共同電極線23、一儲存電極線24、一像素電容25、一第一開關單元26及一第二開關單元27。Please refer to FIG. 2. FIG. 2 is a partial equivalent circuit diagram of a liquid crystal display device 2 according to a preferred embodiment of the present invention. The liquid crystal display device 2 includes a scan line 21, a data line 22, a common electrode line 23, a storage electrode line 24, a pixel capacitor 25, a first switching unit 26 and a second switching unit 27.

於本實施例中,液晶顯示裝置2更包含有一資料線驅動電路及一掃瞄線驅動電路(圖未顯示)。其中,資料線驅動電路係與資料線22電性連接且提供一第一子影像資料至像素電容25。掃瞄線驅動電路係與掃瞄線21電性連接且可提供一第二子影像資料至像素電容25。其中,第二子影像資料係為一黑畫面資料。於常暗態(normally black)的液晶顯示裝置中,第二子影像資料之電壓值約等於一共同電壓之電壓值;於常亮態(normally white)的液晶顯示裝置中,第二子影像資料之電壓值約等於暗態之電壓值。In the embodiment, the liquid crystal display device 2 further includes a data line driving circuit and a scan line driving circuit (not shown). The data line driving circuit is electrically connected to the data line 22 and provides a first sub-image data to the pixel capacitor 25. The scan line driving circuit is electrically connected to the scan line 21 and can provide a second sub-image data to the pixel capacitor 25. The second sub-image data is a black screen material. In a normally black liquid crystal display device, the voltage value of the second sub-image data is approximately equal to a common voltage voltage; in the normally white liquid crystal display device, the second sub-image data The voltage value is approximately equal to the voltage value of the dark state.

接著,第一開關單元26係分別與掃瞄線21、資料線22及像素電容25電性連接。第二開關單元27係分別與掃瞄線21、儲存電極線24及像素電容25電性連接。Next, the first switching unit 26 is electrically connected to the scan line 21, the data line 22, and the pixel capacitor 25, respectively. The second switching unit 27 is electrically connected to the scan line 21, the storage electrode line 24, and the pixel capacitor 25, respectively.

像素電容25係具有一液晶電容251及一儲存電容252。液晶電容251係分別與第一開關單元26、第二開關單元27及共同電極線23電性連接;儲存電容252係分別與第一開關單元26、第二開關單元27及儲存電極線24電性連接。The pixel capacitor 25 has a liquid crystal capacitor 251 and a storage capacitor 252. The liquid crystal capacitor 251 is electrically connected to the first switch unit 26, the second switch unit 27 and the common electrode line 23, respectively; the storage capacitor 252 is electrically connected to the first switch unit 26, the second switch unit 27 and the storage electrode line 24, respectively. connection.

在本實施例中,第一開關單元26及第二開關單元27例如但不限於一薄膜電晶體。因此,第一開關單元26係具有一第一閘極261、一第一源極262及一第一汲極263。其中第一閘極261係與掃瞄線21電性連接;第一源極262係與資料線22電性連接;第一汲極263係與像素電容25電性連接。第二開關單元27係具有一第二閘極271、一第二源極272及一第二汲極273。其中第二閘極271與儲存電極線24電性連接;第二源極272係與掃瞄線21電性連接;第二汲極273係與像素電容25及第一汲極263電性連接。In this embodiment, the first switching unit 26 and the second switching unit 27 are, for example but not limited to, a thin film transistor. Therefore, the first switching unit 26 has a first gate 261, a first source 262 and a first drain 263. The first gate 261 is electrically connected to the scan line 21; the first source 262 is electrically connected to the data line 22; and the first drain 263 is electrically connected to the pixel capacitor 25. The second switching unit 27 has a second gate 271, a second source 272 and a second drain 273. The second gate 271 is electrically connected to the storage electrode line 24; the second source 272 is electrically connected to the scan line 21; and the second drain 273 is electrically connected to the pixel capacitor 25 and the first drain 263.

於本實施例中,共同電極線23係傳送共同電壓,儲存電極線24係可傳送一儲存電壓或輔助電壓,儲存電壓也可以等於共同電壓。In the present embodiment, the common electrode line 23 transmits a common voltage, and the storage electrode line 24 can transmit a storage voltage or an auxiliary voltage, and the storage voltage can also be equal to a common voltage.

請同時參照圖3A至圖3C所示,在一影像圖框時間t0 ~tf 之間(如圖3A所示),其中影像圖框時間t0 ~tf 係區分為一第一子影像圖框時間t0 ~t1f 及一第二子影像圖框時間t1f ~tf (如圖3B所示),且影像圖框時間係為頻率60Hz之影像圖框時間。Please refer to FIG. 3A to FIG. 3C simultaneously, between an image frame time t 0 ~ t f (as shown in FIG. 3A ), wherein the image frame time t 0 ~t f is divided into a first sub image. Frame time t 0 ~ t 1f and a second sub-picture frame time t 1f ~ t f (as shown in FIG. 3B ), and the image frame time is the image frame time of frequency 60 Hz.

以下,請同時參考圖2及圖3A至圖3C所示,液晶顯示裝置2的作動如下:在第一子影像圖框時間t0 ~t1f 之間的t0 ~t1 ,掃瞄線驅動電路係提供一驅動電壓(如圖3A所示),並經由掃瞄線21使第一開關單元26導通。同時,資料線驅動電路提供一第一子影像資料至資料線22,並經由第一開關單元26傳送至像素電容25。接著,於第一子影像圖框時間t0 ~t1f 的t1 ~t1f 之間,掃瞄線驅動電路維持一適當電壓以關閉第一開關單元26(如圖3A所示),此時,像素電容25儲存的第一子影像資料將使液晶分子扭轉並搭配背光源的作用進而產生影像。而在第一子影像圖框時間t0 ~t1f 之間,儲存電極線24係維持一儲存電壓(如圖3B所示)。Hereinafter, please refer to FIG. 2 and FIG. 3A to FIG. 3C simultaneously, the operation of the liquid crystal display device 2 is as follows: t 0 ~ t 1 between the first sub-frame frame time t 0 ~ t 1f , the scan line drive The circuit provides a drive voltage (as shown in FIG. 3A) and turns on the first switching unit 26 via the scan line 21. At the same time, the data line driving circuit provides a first sub-picture data to the data line 22 and is transmitted to the pixel capacitor 25 via the first switching unit 26. Then, between t 1 and t 1f of the first sub-frame time t 0 ~ t 1f , the scan line driving circuit maintains an appropriate voltage to turn off the first switching unit 26 (as shown in FIG. 3A ). The first sub-image data stored by the pixel capacitor 25 will twist the liquid crystal molecules and cooperate with the backlight to generate an image. Between the first sub-frame time t 0 ~ t 1f , the storage electrode line 24 maintains a storage voltage (as shown in FIG. 3B).

此外,像素電容25之一像素電壓Va 的變化(如圖3C所示),係於第一開關單元26關閉後(即在t1 後)有一電壓降ft ,這是因為在第一開關單元26之第一閘極261及第一汲極263之間具有一寄生電容,因此在第一開關單元26關閉時,會因為寄生電容的效應使得Va 也隨之稍微下降。In addition, a change in the pixel voltage V a of the pixel capacitor 25 (as shown in FIG. 3C ) is caused by a voltage drop f t after the first switching unit 26 is turned off (ie, after t 1 ) because the first switch The first gate 261 of the unit 26 and the first drain 263 have a parasitic capacitance. Therefore, when the first switching unit 26 is turned off, V a is also slightly lowered due to the effect of parasitic capacitance.

接著,於第二子影像圖框時間t1f ~tf ,儲存電極線24係傳送一輔助電壓至第二開關單元27(如圖3B所示),使第二開關單元27導通。而於第二子影像圖框時間t1f ~tf 的t1f ~t2 之間,掃瞄線驅動電路係提供一第二子影像資料至掃瞄線21,其中,於常暗態的液晶顯示裝置中,第二子影像資料之電壓值約等於共同電壓(如圖3A所示),並經由第二開關單元27傳送至像素電容25。此外,在第二子影像圖框時間t1f ~tf 之間,因必須維持儲存電容252之一端的參考電壓,使其能儲存第二子影像資料,因此,儲存電極線24需持續提供輔助電壓(如圖3B所示),使第二開關單元27在此段時間維持導通狀態,且掃瞄線驅動電路持續提供第二子影像資料(黑畫面資料)至像素電容25,如此才可避免像素電容25的電壓因為儲存電容252之一端電壓改變而被改變。Next, at the second sub-frame time t 1f ~ t f , the storage electrode line 24 transmits an auxiliary voltage to the second switching unit 27 (as shown in FIG. 3B ) to turn on the second switching unit 27 . And between t 1f ~ t 2 of the second sub-frame time t 1f ~ t f , the scan line driving circuit provides a second sub-image data to the scan line 21 , wherein the liquid crystal in the normally dark state In the display device, the voltage value of the second sub-image data is approximately equal to the common voltage (as shown in FIG. 3A), and is transmitted to the pixel capacitor 25 via the second switching unit 27. In addition, between the second sub-frame time t 1f ~ t f , since the reference voltage of one end of the storage capacitor 252 must be maintained, so that the second sub-image data can be stored, the storage electrode line 24 needs to continuously provide assistance. The voltage (as shown in FIG. 3B) causes the second switching unit 27 to maintain the on state during this period of time, and the scan line driving circuit continuously supplies the second sub-picture data (black picture data) to the pixel capacitor 25, so as to avoid The voltage of the pixel capacitor 25 is changed because the voltage at one end of the storage capacitor 252 is changed.

綜上所述,於第一子影像圖框時間t0 至t1f 之間,液晶顯示裝置2係搭配背光模組的作動而顯示正常畫面,而在第二子影像圖框時間t1f 至tf 之間,液晶顯示裝置2係搭配背光模組的作動而顯示黑畫面。另外,液晶顯示裝置2可配合欲插入之黑畫面的頻率來調整第一子影像圖框時間以及第二子影像圖框時間的長短於頻率60Hz的影像圖框時間內完成。In summary, between the first sub-image frame time t 0 to t 1f , the liquid crystal display device 2 displays the normal picture with the operation of the backlight module, and the second sub-picture frame time t 1f to t Between f , the liquid crystal display device 2 displays a black screen in conjunction with the operation of the backlight module. In addition, the liquid crystal display device 2 can adjust the frequency of the first sub-picture frame time and the second sub-picture frame time to match the frequency of the 60 Hz image frame time in accordance with the frequency of the black picture to be inserted.

承上所述,在影像圖框時間tf 之後,又重複影像圖框時間t0 至tf 的作動,但需注意者,在下一圖框時間中,液晶顯示裝置2係可採用一相對於共同電壓的負極性電壓驅動(如圖3C所示)。As described above, after the image frame time t f , the operation of the image frame time t 0 to t f is repeated, but it should be noted that in the next frame time, the liquid crystal display device 2 can adopt a relative The negative voltage of the common voltage is driven (as shown in Figure 3C).

接著,請參考圖4所示,圖4為依據本發明另一較佳實施例之液晶顯示裝置3之一部分等效電路示意圖。液晶顯示裝置3係包含有一掃瞄線31、一資料線32、一共同電極線33、一儲存電極線34、一輔助電極線38、一像素電容35、一第一開關單元36及一第二開關單元37。Next, please refer to FIG. 4. FIG. 4 is a partial equivalent circuit diagram of a liquid crystal display device 3 according to another preferred embodiment of the present invention. The liquid crystal display device 3 includes a scan line 31, a data line 32, a common electrode line 33, a storage electrode line 34, an auxiliary electrode line 38, a pixel capacitor 35, a first switching unit 36, and a second Switch unit 37.

於本實施例中,液晶顯示裝置3更包含有一資料線驅動電路及一掃瞄線驅動電路(圖未顯示)。其中,資料線驅動電路與掃瞄線驅動電路之作動與功能係與上述實施例之液晶顯示裝置2相同,故在此不再贅述。另外,像素電容35係與上述實施例之像素電容25之連接關係與功能皆相同,故在此亦不再贅述。In the embodiment, the liquid crystal display device 3 further includes a data line driving circuit and a scan line driving circuit (not shown). The operation and function of the data line driving circuit and the scanning line driving circuit are the same as those of the liquid crystal display device 2 of the above embodiment, and thus will not be described herein. In addition, the connection relationship and function of the pixel capacitor 35 and the pixel capacitor 25 of the above embodiment are the same, and therefore will not be described herein.

接著,第一開關單元36係分別與掃瞄線31、資料線32及像素電容35電性連接。第二開關單元37係分別與掃瞄線31、輔助電極線38及像素電容35電性連接。Next, the first switch unit 36 is electrically connected to the scan line 31, the data line 32, and the pixel capacitor 35, respectively. The second switching unit 37 is electrically connected to the scan line 31, the auxiliary electrode line 38, and the pixel capacitor 35, respectively.

在本實施例中,第一開關單元36及第二開關單元37例如但不限於一薄膜電晶體。其中,第一開關單元36之連接關係與上述實施例之第一開關單元26相同,故在此不再贅述。於此要說明的是,第二開關單元37係具有一第二閘極371、一第二源極372及一第二汲極373。其中第二閘極371係與輔助電極線38電性連接;第二源極372係與掃瞄線31電性連接;第二汲極373係與像素電容35及第一汲極363電性連接。In this embodiment, the first switching unit 36 and the second switching unit 37 are, for example but not limited to, a thin film transistor. The connection relationship of the first switch unit 36 is the same as that of the first switch unit 26 of the above embodiment, and therefore will not be described herein. It should be noted that the second switch unit 37 has a second gate 371, a second source 372, and a second drain 373. The second gate 371 is electrically connected to the auxiliary electrode line 38; the second source 372 is electrically connected to the scan line 31; and the second drain 373 is electrically connected to the pixel capacitor 35 and the first drain 363. .

於本實施例中,共同電極線33及儲存電極線34係分別或共同傳送一共同電壓,而輔助電極線38係傳送一輔助電壓。當然,依據不同的設計,共同電極線33係可傳送一共同電壓,儲存電極線34係可傳送一儲存電壓。In the present embodiment, the common electrode line 33 and the storage electrode line 34 respectively transmit a common voltage, and the auxiliary electrode line 38 transmits an auxiliary voltage. Of course, depending on the design, the common electrode line 33 can transmit a common voltage, and the storage electrode line 34 can transmit a stored voltage.

請同時參照圖5A至圖5C所示,一影像圖框時間t0 ’~tf ’係區分為一第一子影像圖框時間t0 ’~t1f ’(如圖5A所示)及一第二子影像圖框時間t1f ’~tf ’(如圖5B所示),且影像圖框時間t0 ’~tf ’係為頻率60Hz之影像圖框時間。Referring to FIG. 5A to FIG. 5C simultaneously, an image frame time t 0 '~t f ' is divided into a first sub-picture frame time t 0 '~t 1f ' (as shown in FIG. 5A ) and a The second sub-picture frame time t 1f '~t f ' (as shown in FIG. 5B ), and the image frame time t 0 '~t f ' is the image frame time of frequency 60 Hz.

以下,請同時參考圖4及圖5A至圖5C所示,液晶顯示裝置3的作動如下:在第一子影像圖框時間t0 ’~t1f ’之間,液晶顯示裝置3的作動與上述實施例之液晶顯示裝置2相同,因此不再贅述。接著,於第二子影像圖框時間t1f ’~tf ’的t1f ’~t2 ’之間,輔助電極線38係傳送一輔助電壓至第二開關單元37(如圖5B所示),以使第二開關單元37導通,同時,掃瞄線驅動電路係提供一第二子影像資料至掃瞄線31,並經由第二開關單元37傳送至像素電容35。接著,於第二子影像圖框時間t1f ’~t2 ’的t2 ’~tf ’之間,像素電容35儲存的第二子影像資料(黑畫面資料)將使液晶分子扭轉並搭配背光源的作用以產生黑畫面。此外,由於輔助電極線38與掃瞄線31之作動,像素電容35之一像素電壓Vb 的變化如圖5C所示。Hereinafter, please refer to FIG. 4 and FIG. 5A to FIG. 5C simultaneously, the operation of the liquid crystal display device 3 is as follows: between the first sub-frame frame time t 0 '~t 1f ', the operation of the liquid crystal display device 3 and the above The liquid crystal display device 2 of the embodiment is the same, and therefore will not be described again. Then, between t 1f '~t 2 ' of the second sub-frame time t 1f '~t f ', the auxiliary electrode line 38 transmits an auxiliary voltage to the second switching unit 37 (as shown in FIG. 5B). The second switching unit 37 is turned on, and the scan line driving circuit supplies a second sub-image data to the scan line 31 and is transmitted to the pixel capacitor 35 via the second switching unit 37. Then, between t 2 '~t f ' of the second sub-frame time t 1f '~t 2 ', the second sub-image data (black picture data) stored by the pixel capacitor 35 will twist and match the liquid crystal molecules The backlight acts to create a black picture. Further, since the auxiliary electrode line 38 and the actuator 31 for the scan lines, the pixel capacitance change in the voltage V b of one pixel 35 shown in Figure 5C.

綜上所述,於第一子影像圖框時間t0 ’至t1f ’之間,液晶顯示裝置3係搭配背光模組的作動而顯示正常畫面,而在第二子影像圖框時間t1f ’至tf ’之間,液晶顯示裝置3係搭配背光模組作動而顯示黑畫面。此外,液晶顯示裝置3可配合欲插入之黑畫面的頻率來調整第一子影像圖框時間以及第二子影像圖框時間的長短於頻率60Hz的影像圖框時間內完成。In summary, between the first sub-image frame time t 0 ' to t 1f ', the liquid crystal display device 3 displays the normal picture with the operation of the backlight module, and the second sub-picture frame time t 1f between 'to t f', the liquid crystal display device with the backlight module 3 system is actuated to display a black screen. In addition, the liquid crystal display device 3 can adjust the frequency of the first sub-picture frame time and the second sub-picture frame time to match the frequency of the 60 Hz image frame time in accordance with the frequency of the black picture to be inserted.

承上所述在影像圖框時間tf ’之後,又重複影像圖框時間t0 ’至tf ’的作動,但需注意者,在下一圖框時間中,液晶顯示裝置3係可採用一相對於共同電壓的負極性電壓驅動(如圖5C所示)。After the image frame time t f ', the image frame time t 0 ' to t f ' is repeated, but it should be noted that in the next frame time, the liquid crystal display device 3 can adopt one. The negative polarity voltage is driven relative to the common voltage (as shown in Figure 5C).

請參考圖6所示,圖6為依據本發明又一較佳實施例之液晶顯示裝置4之一部分等效電路示意圖。液晶顯示裝置4係包含有一第一掃瞄線41、一第二掃瞄線42、一資料線43、一共同電極線44、一儲存電極線45、一輔助電極線46、一像素電容47、一第一開關單元48及一第二開關單元49。Please refer to FIG. 6. FIG. 6 is a partial equivalent circuit diagram of a liquid crystal display device 4 according to another preferred embodiment of the present invention. The liquid crystal display device 4 includes a first scan line 41, a second scan line 42, a data line 43, a common electrode line 44, a storage electrode line 45, an auxiliary electrode line 46, a pixel capacitor 47, A first switching unit 48 and a second switching unit 49.

於本實施例中,液晶顯示裝置4更包含有一資料線驅動電路及一掃瞄線驅動電路(圖未顯示)。其中,資料線驅動電路與掃瞄線驅動電路之作動與功能係與上述實施例之液晶顯示裝置2相同,故在此不再贅述。另外,像素電容47係與上述實施例之像素電容25之連接關係與功能皆相同,故在此亦不再贅述。In the embodiment, the liquid crystal display device 4 further includes a data line driving circuit and a scan line driving circuit (not shown). The operation and function of the data line driving circuit and the scanning line driving circuit are the same as those of the liquid crystal display device 2 of the above embodiment, and thus will not be described herein. In addition, the connection relationship and function of the pixel capacitor 47 and the pixel capacitor 25 of the above embodiment are the same, and therefore will not be described herein.

接著,第一開關單元48係分別與第一掃瞄線41、資料線43及像素電容47電性連接。而第二開關單元49係分別與第二掃瞄線42、輔助電極線46及像素電容47電性連接。Next, the first switching unit 48 is electrically connected to the first scan line 41, the data line 43, and the pixel capacitor 47, respectively. The second switch unit 49 is electrically connected to the second scan line 42, the auxiliary electrode line 46 and the pixel capacitor 47, respectively.

在本實施例中,第一開關單元48及第二開關單元49例如但不限於一薄膜電晶體。由於第一開關單元48與上述實施例之第一開關單元26之連接關係相同,故在此不再贅述。於此要說明的是,第二開關單元49係具有一第二閘極491、一第二源極492及一第二汲極493。其中,第二閘極491係與輔助電極線46電性連接;第二源極492係與第二掃瞄線42電性連接;第二汲極493係與像素電容47及第一汲極483電性連接。In this embodiment, the first switching unit 48 and the second switching unit 49 are, for example but not limited to, a thin film transistor. Since the connection relationship between the first switch unit 48 and the first switch unit 26 of the above embodiment is the same, it will not be described herein. It should be noted that the second switch unit 49 has a second gate 491, a second source 492 and a second drain 493. The second gate 491 is electrically connected to the auxiliary electrode line 46; the second source 492 is electrically connected to the second scan line 42; the second drain 493 is connected to the pixel capacitor 47 and the first drain 483. Electrical connection.

於本實施例中,共同電極線44及儲存電極線45係分別或共同傳送一共同電壓,而輔助電極線46係傳送一輔助電壓。當然,依據不同的設計,共同電極線44係可傳送一共同電壓,儲存電極線45係可傳送一儲存電壓。In the present embodiment, the common electrode line 44 and the storage electrode line 45 respectively transmit a common voltage, and the auxiliary electrode line 46 transmits an auxiliary voltage. Of course, depending on the design, the common electrode line 44 can transmit a common voltage, and the storage electrode line 45 can transmit a stored voltage.

請同時參照圖7A至圖7D所示,一影像圖框時間t0 ”~tf ”係區分為一第一子影像圖框時間t1 ”~t1f ”(如圖7A所示)及一第二子影像圖框時間t1f ”~tf ”(如圖7B及圖7C所示),且影像圖框時間係為頻率60Hz之影像圖框時間。Referring to FIG. 7A to FIG. 7D simultaneously, an image frame time t 0 ′′~t f ′′ is divided into a first sub-image frame time t 1 ′′~t 1f ” (as shown in FIG. 7A ) and a The second sub-frame time t 1f ”~t f ” (as shown in FIGS. 7B and 7C ), and the image frame time is the image frame time of frequency 60 Hz.

以下,請同時參考圖6及圖7A至圖7D所示,液晶顯示裝置4的作動如下:在第一子影像圖框時間t0 ”~t1f ”之間,液晶顯示裝置4的作動與上述實施例之液晶顯示裝置2相同,因此不再贅述。接著,於第二子影像圖框時間t1f ”~tf ”的t1f ”~t2 ”之間,輔助電極線46係傳送一輔助電壓至第二開關單元49,以使第二開關單元49導通(如圖7C所示)。同時,第二掃瞄線42係提供一第二子影像資料(黑畫面資料)至第二開關單元49,並傳送至像素電容47(如圖7B所示)。接著在第二子影像圖框時間t1f ”~tf ”的t2 ”~tf ”之間,像素電容47儲存的第二子影像資料(黑畫面資料)將使液晶分子扭轉並搭配背光源的作用以產生黑畫面。此外,由於輔助電極線46、第一掃瞄線41及第二掃瞄線42之作動,使得像素電容47之一像素電壓Vc 的變化如圖7D所示。Hereinafter, please refer to FIG. 6 and FIG. 7A to FIG. 7D simultaneously, the operation of the liquid crystal display device 4 is as follows: between the first sub-frame frame time t 0 ′′~t 1f ′′, the operation of the liquid crystal display device 4 and the above The liquid crystal display device 2 of the embodiment is the same, and therefore will not be described again. Then, between t 1f ′′~t 2 ′ of the second sub-frame time t 1f ”~t f ”, the auxiliary electrode line 46 transmits an auxiliary voltage to the second switching unit 49 to make the second switching unit 49 is turned on (as shown in Figure 7C). At the same time, the second scan line 42 provides a second sub-picture data (black picture data) to the second switch unit 49 and to the pixel capacitor 47 (as shown in FIG. 7B). Then, between t 2 ′~t f ′ of the second sub-frame time t 1f ”~t f ”, the second sub-image data (black picture data) stored by the pixel capacitor 47 will twist the liquid crystal molecules and match the backlight. The role of the source to produce a black picture. Further, since the auxiliary electrode line 46, a first scan line and the second scan lines 41 for the actuator 42, so that the pixel supply voltage V c changes the capacitance of one pixel 47 shown in Figure 7D.

綜上所述,於第一子影像圖框時間t0 ”至t1f ”之間,液晶顯示裝置4係搭配背光模組的作動而顯示正常畫面,而在影像圖框時間t1f ”至tf ”之間,液晶顯示裝置4係搭配背光模組的作動而顯示黑畫面。此外,液晶顯示裝置4可配合欲插入之黑畫面的頻率來調整第一子影像圖框時間以及第二子影像圖框時間的長短於頻率60Hz的影像圖框時間內完成。且由於第一子影像圖框時間以及第二子影像圖框時間相互配合即可在二影像資料之間插入一黑畫面,故資料驅動線路無需倍頻。In summary, between the first sub-image frame time t 0 ′′ to t 1f ′′, the liquid crystal display device 4 displays the normal picture with the operation of the backlight module, and at the image frame time t 1f ” to t Between " f ", the liquid crystal display device 4 displays a black screen in conjunction with the operation of the backlight module. In addition, the liquid crystal display device 4 can adjust the frequency of the first sub-picture frame time and the second sub-picture frame time in accordance with the frequency of the black picture to be inserted, and complete the time in the image frame time of 60 Hz. Moreover, since the first sub-picture frame time and the second sub-picture frame time cooperate to insert a black picture between the two image data, the data driving circuit does not need to multiply.

附帶一提,在每一圖框時間內,每一掃瞄線所提供之黑畫面資料係提供至上一級的像素電容,使液晶顯示裝置所顯示之影像具有連動效果。Incidentally, in each frame time, the black screen data provided by each scan line is supplied to the pixel capacitance of the upper stage, so that the image displayed by the liquid crystal display device has a linkage effect.

同理,在影像圖框時間tf ”之後,又重複影像圖框時間t0 ”至tf ”的作動,但需注意者,在下一圖框時間中,液晶顯示裝置4係採用一相對共通電壓的負極性電壓驅動(如圖7D所示)。Similarly, after the image frame time t f ", the image frame time t 0 " to t f " is repeated, but it should be noted that in the next frame time, the liquid crystal display device 4 adopts a relative commonality. The negative voltage of the voltage is driven (as shown in Figure 7D).

接著,請參考圖8所示,其係為本發明較佳實施例之一種液晶顯示裝置之影像顯示方法之流程圖,其包括步驟S01至步驟S02。需注意者,本發明較佳實施例之液晶顯示裝置之影像顯示方法係可應用於上述之液晶顯示裝置2、3或4。以下藉由液晶顯示裝置2為例,說明影像顯示方法之流程步驟。Next, please refer to FIG. 8 , which is a flowchart of an image display method of a liquid crystal display device according to a preferred embodiment of the present invention, which includes steps S01 to S02 . It should be noted that the image display method of the liquid crystal display device of the preferred embodiment of the present invention can be applied to the above liquid crystal display device 2, 3 or 4. Hereinafter, the flow chart of the image display method will be described by taking the liquid crystal display device 2 as an example.

其中影像顯示方法係執行於一影像圖框時間t0 ~tf ,影像圖框時間係區分為一第一子影像圖框時間t0 ~t1f 及一第二子影像圖框時間t1f ~tfThe image display method is performed at an image frame time t 0 ~ t f , and the image frame time is divided into a first sub-image frame time t 0 ~ t 1f and a second sub image frame time t 1f ~ t f .

於步驟S01,在第一子影像圖框時間t0 ~t1f ,經由第一開關單元26傳送一第一子影像資料至像素電容25。In step S01, a first sub-image data is transmitted to the pixel capacitor 25 via the first switching unit 26 at the first sub-frame time t 0 ~ t 1f .

於步驟S02,在第二子影像圖框時間t1f ~tf 經由第二開關單元27傳送一第二子影像資料至像素電容25。In step S02, a second sub-image data is transmitted to the pixel capacitor 25 via the second switching unit 27 at the second sub-frame time t 1f to t f .

以上之步驟S01至步驟S02的特徵與細節,皆已揭露於前述液晶顯示裝置之實施例中,故於此不再贅述。The features and details of the above steps S01 to S02 have been disclosed in the above embodiments of the liquid crystal display device, and thus will not be described again.

綜上所述,因依本發明之一種液晶顯示裝置,係藉由第二開關元件來插入黑畫面,可改善邊緣殘像的問題,更可使資料線驅動電路無需倍頻就可插入黑畫面,除此之外,更能配合人眼觀賞所需,調整黑畫面的顯示頻率,讓使用者能夠感受到較佳的影像。故能降低液晶顯示裝置的成本,改善液晶顯示裝置的顯示畫面,更能使顯示畫面更為完美。In summary, according to the liquid crystal display device of the present invention, the black image is inserted by the second switching element, the problem of the edge afterimage can be improved, and the data line driving circuit can be inserted into the black screen without multiplying the frequency. In addition, it can better match the needs of the human eye and adjust the display frequency of the black screen so that the user can feel the better image. Therefore, the cost of the liquid crystal display device can be reduced, the display screen of the liquid crystal display device can be improved, and the display screen can be more perfect.

以上所述僅為舉例性,而非為限制性者。任何未脫離本發明之精神與範疇,而對其進行之等效修改或變更,均應包含於後附之申請專利範圍中。The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

1、2、3、4...液晶顯示裝置1, 2, 3, 4. . . Liquid crystal display device

11、21、31...掃瞄線11, 21, 31. . . Sweep line

17...資料線驅動電路17. . . Data line driver circuit

18...掃瞄線驅動電路18. . . Sweep line drive circuit

41...第一掃瞄線41. . . First scan line

12、22、32、43...資料線12, 22, 32, 43. . . Data line

42...第二掃瞄線42. . . Second scan line

13、23、33、44...共同電極線13, 23, 33, 44. . . Common electrode line

14、24、34、45...儲存電極線14, 24, 34, 45. . . Storage electrode line

38、46...輔助電極線38, 46. . . Auxiliary electrode line

25、35、47...像素電容25, 35, 47. . . Pixel capacitance

151、251、351、471...液晶電容151, 251, 351, 471. . . Liquid crystal capacitor

152、252、352、472...儲存電容152, 252, 352, 472. . . Storage capacitor

16...開關單元16. . . Switch unit

161...閘極161. . . Gate

162...源極162. . . Source

163...汲極163. . . Bungee

26、36、48...第一開關單元26, 36, 48. . . First switch unit

261、361、481...第一閘極261, 361, 481. . . First gate

262、362、482...第一源極262, 362, 482. . . First source

263、363、483...第一汲極263, 363, 483. . . First bungee

27、37、49...第二開關單元27, 37, 49. . . Second switching unit

271、371、491...第二閘極271, 371, 491. . . Second gate

272、372、492...第二源極272, 372, 492. . . Second source

273、373、493...第二汲極273, 373, 493. . . Second bungee

Va 、Vb 、Vc ...像素電壓V a , V b , V c . . . Pixel voltage

S01~S02...影像顯示步驟S01~S02. . . Image display step

ft ...壓降f t . . . Pressure drop

t0 ~tf 、t0 ’~tf ’、t0 ”~tf ”...影像圖框時間t 0 ~t f , t 0 '~t f ', t 0 ′~t f ”. . . Image frame time

t0 ~t1f 、t0 ’~t1f ’、t0 ”~t1f ”...第一子影像圖框時間t 0 ~ t 1f , t 0 '~t 1f ', t 0 ′~t 1f ”. . . First sub-frame time

t1f ~tf 、t1f ’~tf ’、t1f ”~tf ”...第二子影像圖框時間t 1f ~t f , t 1f '~t f ', t 1f ”~t f ”. . . Second sub-frame time

圖1為習知液晶顯示裝置之一示意圖;圖2為依據本發明較佳實施例液晶顯示裝置之一部分等效電路示意圖;圖3A為依據本發明較佳實施例液晶顯示裝置之掃瞄線電壓時序圖;圖3B為依據本發明較佳實施例液晶顯示裝置之儲存電極線電壓時序圖;圖3C為依據本發明較佳實施例液晶顯示裝置之像素電容節點的電壓時序圖;圖4為依據本發明另一較佳實施例液晶顯示裝置之一部分等效電路示意圖;圖5A為依據本發明另一較佳實施例液晶顯示裝置之掃瞄線電壓時序圖;圖5B為依據本發明另一較佳實施例液晶顯示裝置之輔助電極線電壓時序圖;圖5C為依據本發明另一較佳實施例液晶顯示裝置之像素電容節點的電壓時序圖;圖6為依據本發明又一較佳實施例液晶顯示裝置之一部分等效電路示意圖;圖7A為依據本發明又一較佳實施例液晶顯示裝置之第一掃瞄線電壓時序圖;圖7B為依據本發明又一較佳實施例液晶顯示裝置之第二掃瞄線電壓時序圖;圖7C為依據本發明又一較佳實施例液晶顯示裝置之輔助電極線電壓時序圖;圖7D為依據本發明又一較佳實施例液晶顯示裝置之像素電容節點的電壓時序圖;以及圖8為依據本發明較佳實施例液晶顯示裝置之影像顯示方法之一流程圖。1 is a schematic diagram of a conventional liquid crystal display device; FIG. 2 is a partial equivalent circuit diagram of a liquid crystal display device according to a preferred embodiment of the present invention; FIG. 3A is a scanning line voltage of a liquid crystal display device according to a preferred embodiment of the present invention; FIG. 3B is a timing diagram of a storage electrode line voltage of a liquid crystal display device according to a preferred embodiment of the present invention; FIG. 3C is a voltage timing diagram of a pixel capacitor node of a liquid crystal display device according to a preferred embodiment of the present invention; FIG. 5A is a timing diagram of a scanning line voltage of a liquid crystal display device according to another preferred embodiment of the present invention; FIG. 5B is another timing diagram of a liquid crystal display device according to another preferred embodiment of the present invention; FIG. 5C is a voltage timing diagram of a pixel capacitor node of a liquid crystal display device according to another preferred embodiment of the present invention; FIG. 6 is a second preferred embodiment of the present invention. FIG. 7A is a timing diagram of a first scanning line voltage of a liquid crystal display device according to still another preferred embodiment of the present invention; FIG. 7B is a timing diagram of a second scan line voltage of a liquid crystal display device according to another preferred embodiment of the present invention; FIG. 7C is a timing diagram of an auxiliary electrode line voltage of the liquid crystal display device according to still another preferred embodiment of the present invention; FIG. A voltage timing diagram of a pixel capacitance node of a liquid crystal display device according to still another preferred embodiment of the present invention; and FIG. 8 is a flow chart of an image display method of a liquid crystal display device according to a preferred embodiment of the present invention.

2...液晶顯示裝置2. . . Liquid crystal display device

21...掃瞄線twenty one. . . Sweep line

22...資料線twenty two. . . Data line

23...共同電極線twenty three. . . Common electrode line

24...儲存電極線twenty four. . . Storage electrode line

25...像素電容25. . . Pixel capacitance

251...液晶電容251. . . Liquid crystal capacitor

252...儲存電容252. . . Storage capacitor

26...第一開關單元26. . . First switch unit

261...第一閘極261. . . First gate

262...第一源極262. . . First source

263...第一汲極263. . . First bungee

27...第二開關單元27. . . Second switching unit

271...第二閘極271. . . Second gate

272...第二源極272. . . Second source

273...第二汲極273. . . Second bungee

Va...像素電壓Va. . . Pixel voltage

Claims (20)

一種液晶顯示裝置,其包含:一掃瞄線;一資料線,係垂直於該掃瞄線;一輔助電極線,係平行於該資料線;一像素電容,係設置在該掃瞄線與該資料線之交點附近;一第一開關單元,係分別與該掃瞄線、該資料線及該像素電容電性連接,其中一第一子影像資料係從該資料線經由該第一開關單元傳送至該像素電容;以及一第二開關單元,係分別與該輔助電極線、該掃瞄線該像素電容電性連接,其中一第二子影像資料係從該掃瞄線經由該第二開關單元傳送至該像素電容。 A liquid crystal display device comprising: a scan line; a data line perpendicular to the scan line; an auxiliary electrode line parallel to the data line; a pixel capacitor disposed on the scan line and the data a first switch unit is electrically connected to the scan line, the data line and the pixel capacitor, wherein a first sub-image data is transmitted from the data line to the data line via the first switch unit The pixel capacitor is electrically connected to the auxiliary electrode line and the pixel of the scan line, and a second sub-image data is transmitted from the scan line via the second switch unit. To the pixel capacitance. 如申請專利範圍第1項所述之液晶顯示裝置,其中該掃瞄線係依序傳送一驅動電壓,以控制該第一開關單元及該第二子影像資料於該像素電容。 The liquid crystal display device of claim 1, wherein the scan line sequentially transmits a driving voltage to control the first switching unit and the second sub-image data to the pixel capacitor. 如申請專利範圍第1項所述之液晶顯示裝置,其中該第一開關單元及該第二開關單元係分別為一薄膜電晶體。 The liquid crystal display device of claim 1, wherein the first switching unit and the second switching unit are respectively a thin film transistor. 如申請專利範圍第3項所述之液晶顯示裝置,其中該 第一開關單元具有一第一閘極、一第一汲極及一第一源極,該第一閘極係與該掃瞄線電性連接,該第一源極係與該資料線電性連接,該第一汲極係與該像素電容電性連接。 The liquid crystal display device of claim 3, wherein the The first switching unit has a first gate, a first drain and a first source. The first gate is electrically connected to the scan line, and the first source and the data line are electrically connected. Connected, the first drain is electrically connected to the pixel capacitor. 如申請專利範圍第3項所述之液晶顯示裝置,其中該第二開關單元具有一第二閘極、一第二汲極及一第二源極,該第二閘極係與該輔助電極線電性連接,該第二源極係與該掃瞄線電性連接,該第二汲極係與該像素電容電性連接。 The liquid crystal display device of claim 3, wherein the second switching unit has a second gate, a second drain, and a second source, the second gate and the auxiliary electrode line The second source is electrically connected to the scan line, and the second drain is electrically connected to the pixel capacitor. 如申請專利範圍第5項所述之液晶顯示裝置,其中該輔助電極線係傳送一輔助電壓,以控制該第二開關單元。 The liquid crystal display device of claim 5, wherein the auxiliary electrode line transmits an auxiliary voltage to control the second switching unit. 如申請專利範圍第1項所述之液晶顯示裝置,其中該像素電容係包含:一液晶電容,其係分別與該第一開關單元、該第二開關單元及一共同電極線電性連接;以及一儲存電容,其係分別與該第一開關單元、該第二開關單元及一儲存電極線電性連接。 The liquid crystal display device of claim 1, wherein the pixel capacitor comprises: a liquid crystal capacitor electrically connected to the first switch unit, the second switch unit and a common electrode line; A storage capacitor is electrically connected to the first switch unit, the second switch unit, and a storage electrode line. 如申請專利範圍第7項所述之液晶顯示裝置,其中該共同電極線及該儲存電極線係分別傳送不同的電壓訊 號。 The liquid crystal display device of claim 7, wherein the common electrode line and the storage electrode line respectively transmit different voltage signals number. 如申請專利範圍第7項所述之液晶顯示裝置,其中該儲存電極線係依序傳送一儲存電壓於該儲存電容。 The liquid crystal display device of claim 7, wherein the storage electrode line sequentially transmits a storage voltage to the storage capacitor. 如申請專利範圍第1項所述之液晶顯示裝置,其中該第二子影像資料係為一黑畫面資料。 The liquid crystal display device of claim 1, wherein the second sub-image data is a black screen material. 如申請專利範圍第1項所述之液晶顯示裝置,更包含一資料線驅動電路,係與該資料線電性連接且提供該第一子影像資料。 The liquid crystal display device of claim 1, further comprising a data line driving circuit electrically connected to the data line and providing the first sub-image data. 如申請專利範圍第1項所述之液晶顯示裝置,更包含一掃瞄線驅動電路,係與該掃瞄線電性連接且提供該第二子影像資料。 The liquid crystal display device of claim 1, further comprising a scan line driving circuit electrically connected to the scan line and providing the second sub-image data. 一種液晶顯示裝置的影像顯示方法,係執行於一影像圖框時間,影像圖框時間係區分為一第一子影像圖框時間及一第二子影像圖框時間,該液晶顯示裝置包含一掃瞄線、一資料線、一輔助電極線、一像素電容、一第一開關單元及一第二開關單元,該資料線係垂直於該掃瞄線,該輔助電極線係平行於該資料線,該像素電容係設置在該掃瞄線與該資料線之交點附近,該第一開關單元係分別與該掃瞄線、該資料線及該像素 電容電性連接,該第二開關單元係分別與該輔助電極線、該掃瞄線該像素電容電性連接,該影像顯示方法包含:於該第一子影像圖框時間從該資料線經由該第一開關單元傳送一第一子影像資料至該像素電容;以及於該第二子影像圖框時間從該掃瞄線經由該第二開關單元傳送一第二子影像資料至該像素電容。 The image display method of the liquid crystal display device is performed in an image frame time, and the image frame time is divided into a first sub-picture frame time and a second sub-picture frame time, and the liquid crystal display device includes a scan. a line, a data line, an auxiliary electrode line, a pixel capacitor, a first switch unit and a second switch unit, the data line is perpendicular to the scan line, and the auxiliary electrode line is parallel to the data line, a pixel capacitor is disposed near an intersection of the scan line and the data line, and the first switch unit is respectively connected to the scan line, the data line, and the pixel The second switch unit is electrically connected to the auxiliary electrode line and the scan line, and the image display method includes: receiving the data from the data line at the first sub-picture frame time. The first switching unit transmits a first sub-image data to the pixel capacitor; and transmits a second sub-image data to the pixel capacitor from the scan line via the second switching unit at the second sub-frame time. 如申請專利範圍第13項所述之影像顯示方法,其中該影像圖框時間係為頻率60Hz之影像圖框時間。 The image display method according to claim 13, wherein the image frame time is an image frame time of a frequency of 60 Hz. 如申請專利範圍第13項所述之影像顯示方法,其中該第二子影像資料係為一黑畫面資料。 The image display method of claim 13, wherein the second sub-image data is a black image material. 如申請專利範圍第13項所述之影像顯示方法,其中該第二子影像資料之電壓值約等於一共同電壓之電壓值。 The image display method of claim 13, wherein the voltage value of the second sub-image data is approximately equal to a voltage value of a common voltage. 如申請專利範圍第13項所述之影像顯示方法,其中當該第一開關單元係為導通時,該第二開關單元係為關閉。 The image display method of claim 13, wherein the second switching unit is turned off when the first switching unit is turned on. 如申請專利範圍第13項所述之影像顯示方法,其中該第一子影像資料係由一資料線驅動電路提供,該資 料線驅動電路係與該資料線電性連接。 The image display method of claim 13, wherein the first sub-image data is provided by a data line driving circuit, the capital The material line driving circuit is electrically connected to the data line. 如申請專利範圍第13項所述之影像顯示方法,其中該第二子影像資料係由一掃瞄線驅動電路提供,該掃瞄線驅動電路係與該掃瞄線電性連接。 The image display method of claim 13, wherein the second sub-image data is provided by a scan line driving circuit, and the scan line driving circuit is electrically connected to the scan line. 如申請專利範圍第13項所述之影像顯示方法,其中該第一子影像圖框時間不等於該二子影像圖框時間。 The image display method of claim 13, wherein the first sub-image frame time is not equal to the two sub-image frame time.
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TW200422707A (en) * 2003-04-30 2004-11-01 Hannstar Display Corp Liquid crystal display panel, liquid crystal display and driving method thereof
TW200512700A (en) * 2003-09-25 2005-04-01 Samsung Electronics Co Ltd Scan driver, display device having the same, and method of driving display device

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