TWI546788B - Driving module and driving method thereof - Google Patents
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本發明係指一種驅動模組及其驅動方法，尤指一種能夠降低串音(Cross Talk)的驅動模組及其驅動方法。 The invention relates to a driving module and a driving method thereof, in particular to a driving module capable of reducing cross Talk and a driving method thereof.
液晶顯示器(Liquid Crystal Display，LCD)具有外型輕薄、低輻射、體積小及低耗能等優點，廣泛地應用在筆記型電腦或平面電視等資訊產品上。因此，液晶顯示器已逐漸取代傳統的陰極射線管顯示器(Cathode Ray Tube Display)成為市場主流，其中又以薄膜電晶體液晶顯示器(TFT LCD)最受歡迎。簡單來說，薄膜電晶體液晶顯示器之驅動系統係由一時序控制器(Timing Controller)、源極驅動器(Source Driver)以及閘極驅動器(Gate Driver)所構成。源極驅動器及閘極驅動器分別控制資料線(Data Line)及掃描線(Scan Line)，其在面板上相互交叉形成電路單元矩陣，而每個電路單元(Cell)包含液晶分子及電晶體。液晶顯示器的顯示原理是閘極驅動器先將掃描訊號送至電晶體的閘極，使電晶體導通，接著源極驅動器將時序控制器送來的資料轉換成輸出電壓後，將輸出電壓送至電晶體的源極，此時液晶一端的電壓會等於電晶體汲極的電壓，並根據汲極電壓改變液晶分子的傾斜角度，進而改變透光率達到顯示不同顏色的目的。 Liquid crystal display (LCD) has the advantages of slimness, low radiation, small size and low energy consumption. It is widely used in information products such as notebook computers or flat-panel TVs. Therefore, liquid crystal displays have gradually replaced the traditional cathode ray tube display (Cathode Ray Tube Display) to become the mainstream in the market, and the thin film transistor liquid crystal display (TFT LCD) is the most popular. Briefly, the driving system of a thin film transistor liquid crystal display is composed of a timing controller, a source driver, and a gate driver. The source driver and the gate driver respectively control a data line and a scan line, which cross each other to form a circuit unit matrix, and each circuit unit (Cell) includes liquid crystal molecules and a transistor. The display principle of the liquid crystal display is that the gate driver first sends the scan signal to the gate of the transistor to turn on the transistor, and then the source driver converts the data sent from the timing controller into an output voltage, and then sends the output voltage to the power. The source of the crystal, at this time, the voltage at one end of the liquid crystal will be equal to the voltage of the dipole of the transistor, and the tilt angle of the liquid crystal molecules is changed according to the voltage of the drain, thereby changing the light transmittance to achieve the purpose of displaying different colors.
在實際應用中，由於面板中資料線的距離間隔近，因此當資料線的電壓變化時，由於驅動電壓轉換次數差異，將會造成串音(cross talk)現象。此外，由於電容充電效應，當相鄰資料線的電壓極性變化次數相異時， 亦會造成串音現象。嚴重時，串音現象會使得面板上不同區塊具有相異的亮度。因此，如何降低面板上的串音現象便成為業界亟欲探討之議題。 In practical applications, since the distances of the data lines in the panel are close to each other, when the voltage of the data lines changes, crosstalk occurs due to the difference in the number of driving voltage conversions. In addition, due to the capacitive charging effect, when the number of voltage polarity changes of adjacent data lines is different, It also causes crosstalk. In severe cases, crosstalk can cause different blocks on the panel to have different brightness. Therefore, how to reduce the crosstalk phenomenon on the panel has become an issue that the industry is eager to explore.
為了解決上述的問題，本發明提供一種能夠平均用於驅動掃描線的列驅動訊號及用於驅動資料線的行驅動訊號中電壓極性切換次數的驅動模組及其驅動方法。 In order to solve the above problems, the present invention provides a driving module capable of driving a column driving signal for driving a scanning line and a number of times of voltage polarity switching in a row driving signal for driving a data line, and a driving method thereof.
本發明揭露一種驅動模組，用於包含有一面板的一顯示裝置，該驅動模組包含有一列驅動單元，用來產生用於驅動該面板中複數個掃描線的複數個列驅動訊號，其中在一第一圖框、一第二圖框、一第三圖框及一第四圖框內，該複數個列驅動訊號中第一列驅動訊號、一第二列驅動訊號、一第三列驅動訊號及一第四列驅動訊號同時驅動該顯示裝置中複數條掃描線的一第一掃描線、一第二掃描線、一第三掃描線及一第四掃描線；及用來調整該第一列驅動訊號、該第二列驅動訊號、該第三列驅動訊號及該第四列驅動訊號，以使該第一列驅動訊號、該第二列驅動訊號、該第三列驅動訊號及該第四列驅動訊號在該第一圖框、該第二圖框、該第三圖框及該第四圖框內的電壓極性切換次數相同；以及一行驅動單元，用來產生用於驅動該面板中複數個資料線的複數個行驅動訊號。 The invention discloses a driving module for a display device including a panel, the driving module comprising a column driving unit for generating a plurality of column driving signals for driving a plurality of scanning lines in the panel, wherein a first column driving signal, a second column driving signal, and a third column driving in the plurality of column driving signals in a first frame, a second frame, a third frame, and a fourth frame The signal and the fourth column of driving signals simultaneously drive a first scan line, a second scan line, a third scan line and a fourth scan line of the plurality of scan lines in the display device; and are used to adjust the first a column driving signal, the second column driving signal, the third column driving signal, and the fourth column driving signal, so that the first column driving signal, the second column driving signal, the third column driving signal, and the first The four columns of driving signals have the same number of voltage polarity switching times in the first frame, the second frame, the third frame, and the fourth frame; and a row of driving units for generating the panel for driving a plurality of multiple data lines Drive signal.
本發明另揭露一種驅動方法，用於包含一面板的一顯示裝置，該驅動方法包含有產生一第一列驅動訊號、一第二列驅動訊號、一第三列驅動訊號及一第四列驅動訊號，以在一第一圖框、一第二圖框、一第三圖框及一第四圖框內同時驅動該面板中複數條掃描線的一第一掃描線、一第二掃描線、一第三掃描線及一第四掃描線；以及調整該第一列驅動訊號、該第二列驅動訊號、該第三列驅動訊號及該第四列驅動訊號，以使該第一列驅動訊號、該第二列驅動訊號、該第三列驅動訊號及該第四列驅動訊號在該第一圖框、 該第二圖框、該第三圖框及該第四圖框內的電壓極性切換次數相同。 The present invention further discloses a driving method for a display device including a panel, the driving method including generating a first column driving signal, a second column driving signal, a third column driving signal, and a fourth column driving a signal, in a first frame, a second frame, a third frame, and a fourth frame, simultaneously driving a first scan line and a second scan line of the plurality of scan lines in the panel, And a third scan line and a fourth scan line; and adjusting the first column driving signal, the second column driving signal, the third column driving signal and the fourth column driving signal to enable the first column driving signal The second column driving signal, the third column driving signal, and the fourth column driving signal are in the first frame, The voltage polarity switching times in the second frame, the third frame, and the fourth frame are the same.
10‧‧‧顯示裝置 10‧‧‧ display device
100‧‧‧面板 100‧‧‧ panel
102‧‧‧驅動模組 102‧‧‧Drive Module
104‧‧‧列驅動單元 104‧‧‧ column drive unit
106‧‧‧行驅動單元 106‧‧‧ row drive unit
50‧‧‧驅動方法 50‧‧‧ Driving method
500~512‧‧‧步驟 500~512‧‧‧Steps
COM1~COMn、COMi~COMi+3‧‧‧列驅動訊號 COM1~COMn, COMi~COMi+3‧‧‧ column drive signals
DL1~DLm‧‧‧資料線 DL1~DLm‧‧‧ data line
F1~F8‧‧‧圖框 F1~F8‧‧‧ frame
M1~M14、MO_1~MO_4、MO1_1~MO1_4、MO2_1~MO2_4‧‧‧矩陣 M1~M14, MO_1~MO_4, MO1_1~MO1_4, MO2_1~MO2_4‧‧‧ matrix
PIX_1_1~PIX_m_n、PIX_j_i~PIX_j_i+3‧‧‧像素 PIX_1_1~PIX_m_n, PIX_j_i~PIX_j_i+3‧‧‧ pixels
SEG1~SEGm、SEGj‧‧‧行驅動訊號 SEG1~SEGm, SEGj‧‧‧ drive signals
SF11~SF41、SF12~SF42、SF13~SF43、SF14~SF44SL1~SLn、SLi、SLi+1、SLi+2、SLi+3‧‧‧掃描線 SF11~SF41, SF12~SF42, SF13~SF43, SF14~SF44SL1~SLn, SLi, SLi+1, SLi+2, SLi+3‧‧‧ scan line
第1圖為本發明實施例中一顯示裝置的示意圖。 FIG. 1 is a schematic diagram of a display device in an embodiment of the present invention.
第2A、2B圖為第1圖所示的顯示裝置運作時相關訊號的示意圖。 2A and 2B are schematic diagrams showing related signals when the display device is operated as shown in Fig. 1.
第3圖為第1圖所示的顯示裝置運作時相關訊號的示意圖。 Figure 3 is a schematic diagram of the relevant signals when the display device is operated as shown in Figure 1.
第4圖為第1圖所示的顯示裝置運作時相關訊號的示意圖。 Figure 4 is a schematic diagram of the relevant signals when the display device is operated as shown in Figure 1.
第5圖為本發明實施例一驅動方法的流程圖。 FIG. 5 is a flowchart of a driving method according to Embodiment 1 of the present invention.
請參考第1圖，第1圖為本發明實施例中一顯示裝置10的示意圖。顯示裝置10可為智慧型手機、平板電腦、筆記型電腦等具有顯示面板的電子裝置，其詳細組成方式或架構視不同應用而有所不同。為求簡單說明，第1圖僅繪示出顯示系統10的一面板100及一驅動模組102，其餘如殼體、連接介面等非直接相關於本發明概念的元件則略而未示。如第1圖所示，面板200包含有掃描線SL1~SLn、資料線DL1~DLm。其中，掃描線SL1~SLn與資料線DL1~DLm的每一交界處分別耦接於像素PIX_1_1~PIX_m_n。面板100之運作原理應為本領域具通常知識者所熟知，為求簡潔，在此不贅述。驅動模組102包含有列驅動單元104及行驅動單元106。列驅動單元104用來產生列驅動訊號COM1~COMn，以驅動掃描線SL1~SLn。行驅動單元106用來產生行驅動訊號SEG1~SEGm，以驅動資料線DL1~DLm。顯示裝置10實現於多線定址(multi-line addressing，MLA)技術。因此，列驅動單元104會同時驅動掃描線SL1~SLn中多條掃描線(如4條掃描線)。在此狀況下，列驅動單元104透過調整列驅動訊號COM1~COMn，使列驅動訊號COM1~COMn及行驅動訊號SEG1~SEGm在連續的圖框內電壓極性切換次數相同，從而避免面板100中像素PIX極化且同時降低面板100 中水平方向及垂直方向的串音(CrossTalk)。 Please refer to FIG. 1. FIG. 1 is a schematic diagram of a display device 10 according to an embodiment of the present invention. The display device 10 can be an electronic device with a display panel, such as a smart phone, a tablet computer, a notebook computer, etc., and the detailed composition or architecture may vary depending on different applications. For the sake of simplicity, FIG. 1 only shows a panel 100 and a driver module 102 of the display system 10. The rest of the components, such as the housing, the connection interface, etc., which are not directly related to the concept of the present invention, are not shown. As shown in FIG. 1, the panel 200 includes scan lines SL1 to SLn and data lines DL1 to DLm. Each of the intersections of the scan lines SL1 and SLn and the data lines DL1 to DLm is coupled to the pixels PIX_1_1 to PIX_m_n. The operation principle of the panel 100 should be well known to those skilled in the art, and for the sake of brevity, it will not be described here. The drive module 102 includes a column drive unit 104 and a row drive unit 106. The column driving unit 104 is configured to generate the column driving signals COM1 to COMn to drive the scanning lines SL1 to SLn. The row driving unit 106 is configured to generate the row driving signals SEG1 S SEGm to drive the data lines DL1 DL DLm. Display device 10 is implemented in a multi-line addressing (MLA) technology. Therefore, the column driving unit 104 simultaneously drives a plurality of scanning lines (such as four scanning lines) in the scanning lines SL1 to SLn. In this case, the column driving unit 104 adjusts the column driving signals COM1~COMn to make the column driving signals COM1~COMn and the row driving signals SEG1~SEGm switch the same frequency polarity in consecutive frames, thereby avoiding pixels in the panel 100. PIX polarizes and simultaneously reduces panel 100 Crosstalk in the horizontal and vertical directions.
詳細來說，列驅動單元104同時驅動掃描線SL1~SLn中掃描線SLi、SLi+1、SLi+2、SLi+3(即列驅動單元104同時驅動4條掃描線)，以實現多線定址技術。請參考第2A、2B圖，第2A、2B圖為第1圖所示的顯示裝置10運作時相關訊號的示意圖。如第2A圖所示，在一圖框F1中子圖框SF11~SF41內，列驅動單元104產生列驅動訊號COMi~COMi+3，以驅動掃描線SLi、SLi+1、SLi+2、SLi+3。其中，列驅動訊號COMi於子圖框SF11~SF41中的電壓分別為VC、VC、VC、-VC。因此，列驅動訊號COMi於圖框F1中的電壓極性切換次數為3次(0VC-VC0)。相似地，列驅動訊號COMi+1於子圖框SF11~SF41中的電壓分別為VC、VC、-VC、VC，也就是於圖框F1中的電壓極性切換次數為4次(0VC-VCVC0)。列驅動訊號COMi+2於子圖框SF11~SF41中的電壓分別為VC、-VC、VC、VC，也就是於圖框F1中的電壓極性切換次數為4次(0VC-VCVC0)。列驅動訊號COMi+3於子圖框SF11~SF41中的電壓分別為-VC、VC、VC、VC，也就是於圖框F1中的電壓極性切換次數為3次(0-VCVC0)。由上述可知，列驅動訊號COMi~COMi+3在圖框F1內電壓極性切換次數彼此之間差距小於等於1。 In detail, the column driving unit 104 simultaneously drives the scan lines SLi, SLi+1, SLi+2, and SLi+3 in the scan lines SL1 to SLn (ie, the column driving unit 104 simultaneously drives four scan lines) to realize multi-line addressing. technology. Please refer to FIGS. 2A and 2B , and FIGS. 2A and 2B are schematic diagrams showing related signals when the display device 10 is operated in FIG. 1 . As shown in FIG. 2A, in the sub-frames SF11-SF41 in the frame F1, the column driving unit 104 generates the column driving signals COMi~COMi+3 to drive the scanning lines SLi, SLi+1, SLi+2, SLi. +3. The voltages of the column driving signals COMi in the sub-frames SF11-SF41 are VC, VC, VC, and -VC, respectively. Therefore, the number of polarity switching of the column driving signal COMi in the frame F1 is 3 times (0). VC -VC 0). Similarly, the voltages of the column driving signals COMi+1 in the sub-frames SF11~SF41 are VC, VC, -VC, VC, respectively, that is, the number of voltage polarity switching times in the frame F1 is 4 times (0). VC -VC VC 0). The voltages of the column drive signals COMi+2 in the sub-frames SF11~SF41 are VC, -VC, VC, VC, respectively, that is, the number of voltage polarity switching times in the frame F1 is 4 times (0 VC -VC VC 0). The voltages of the column drive signals COMi+3 in the sub-frames SF11~SF41 are -VC, VC, VC, VC, respectively, that is, the number of voltage polarity switching times in the frame F1 is 3 times (0 -VC VC 0). As can be seen from the above, the column drive signals COMi~COMi+3 have a voltage polarity switching difference of less than or equal to one in the frame F1.
如第2A圖所示，在圖框F1隨後一圖框F2的子圖框SF12~SF42中，列驅動訊號COMi為子圖框SF11~SF41中列驅動訊號COMi+1的反向訊號；列驅動訊號COMi+1為子圖框SF11~SF41中的列驅動訊號COMi；列驅動訊號COMi+2為子圖框SF11~SF41中列驅動訊號COMi+3的反向訊號；且列驅動訊號COMi+3為子圖框SF11~SF41中列驅動訊號COMi+2。如此一來，列驅動訊號COMi~COMi+3在圖框F2內電壓極性切換次數分別為4、3、3、4次，故列驅動訊號COMi~COMi+3在圖框F2內電壓極性切換次數彼此 之間差距亦小於等於1。 As shown in FIG. 2A, in the sub-frames SF12-SF42 of the frame F2 subsequent to the frame F1, the column drive signal COMi is the reverse signal of the column drive signal COMi+1 in the sub-frames SF11-SF41; The signal COMi+1 is the column drive signal COMi in the sub-frames SF11~SF41; the column drive signal COMi+2 is the reverse signal of the column drive signal COMi+3 in the sub-frames SF11~SF41; and the column drive signal COMi+3 The column drive signal COMi+2 is in the sub-frames SF11~SF41. In this way, the voltage polarity switching times of the column driving signals COMi~COMi+3 in the frame F2 are 4, 3, 3, and 4 times, respectively, so the number of voltage polarity switching times of the column driving signals COMi~COMi+3 in the frame F2. each other The difference between the two is also less than or equal to 1.
請參考第2B圖，在圖框F2隨後一圖框F3的子圖框SF13~SF43 中，列驅動訊號COMi為子圖框SF11~SF41中的列驅動訊號COMi；列驅動訊號COMi+1為子圖框SF11~SF41中列驅動訊號COMi+1的反向訊號；列驅動訊號COMi+2為子圖框SF11~SF41中的列驅動訊號COMi+2；且列驅動訊號COMi+3為子圖框SF11~SF41中列驅動訊號COMi+3。換言之，在圖框F3中的列驅動訊號COMi、COMi+2、COMi+3相同於圖框F中的列驅動訊號COMi、COMi+2、COMi+3，且圖框F3中的列驅動訊號COMi+1則為圖框F1中列驅動訊號COMi+1的反向訊號。如此一來，列驅動訊號COMi~COMi+3在圖框F3內電壓極性切換次數分別為3、4、4、3次，故列驅動訊號COMi~COMi+3在圖框F3內電壓極性切換次數彼此之間差距亦小於等於1。 Please refer to Figure 2B, in the frame F2 and then the sub-frame SF13~SF43 of frame F3 The column drive signal COMi is the column drive signal COMi in the sub-frames SF11~SF41; the column drive signal COMi+1 is the reverse signal of the column drive signal COMi+1 in the sub-frames SF11~SF41; the column drive signal COMi+ 2 is the column drive signal COMi+2 in the sub-frames SF11~SF41; and the column drive signal COMi+3 is the column drive signal COMi+3 in the sub-frames SF11~SF41. In other words, the column drive signals COMi, COMi+2, COMi+3 in the frame F3 are the same as the column drive signals COMi, COMi+2, COMi+3 in the frame F, and the column drive signals COMi in the frame F3. +1 is the reverse signal of the column drive signal COMi+1 in the frame F1. In this way, the voltage polarity switching times of the column driving signals COMi~COMi+3 in the frame F3 are 3, 4, 4, and 3 times, respectively, so the number of voltage polarity switching times of the column driving signals COMi~COMi+3 in the frame F3. The difference between each other is also less than or equal to 1.
在第2B圖中，圖框F3隨後一圖框F4的子圖框SF14~SF44內， 列驅動訊號COMi為子圖框SF13~SF43中列驅動訊號COMi+1；列驅動訊號COMi+1為子圖框SF13~SF43中列驅動訊號COMi的反向訊號；列驅動訊號COMi+2為子圖框SF13~SF43中列驅動訊號COMi+3的反向訊號；且列驅動訊號COMi+3為子圖框SF13~SF43中的列驅動訊號COMi+2。如此一來，列驅動訊號COMi~COMi+3在圖框F4內電壓極性切換次數分別為4、3、3、4次，故列驅動訊號COMi~COMi+3在圖框F4內電壓極性切換次數彼此之間差距亦小於等於1。由第2A、2B圖可得知，列驅動訊號COMi~COMi+3在圖框F1~F4中電壓極性切換次數皆為14次。換言之，列驅動訊號COM1~COMn中每一者於一圖框內的平均切換次數皆相同(如為14/4=3.5次)，從而降低面板100中水平方向的串音。 In Fig. 2B, frame F3 is followed by sub-frames SF14~SF44 of frame F4, The column drive signal COMi is the column drive signal COMi+1 in the sub-frames SF13~SF43; the column drive signal COMi+1 is the reverse signal of the column drive signal COMi in the sub-frames SF13~SF43; the column drive signal COMi+2 is a sub- The reverse signal of the column drive signal COMi+3 is arranged in the frame SF13~SF43; and the column drive signal COMi+3 is the column drive signal COMi+2 in the sub-frames SF13~SF43. In this way, the voltage polarity switching times of the column driving signals COMi~COMi+3 in the frame F4 are 4, 3, 3, and 4 times, respectively, so the number of voltage polarity switching times of the column driving signals COMi~COMi+3 in the frame F4. The difference between each other is also less than or equal to 1. It can be seen from the 2A and 2B diagrams that the number of voltage polarity switching times of the column driving signals COMi~COMi+3 in the frames F1 to F4 is 14 times. In other words, the average number of switching times of each of the column driving signals COM1 to COMn in one frame is the same (for example, 14/4=3.5 times), thereby reducing the horizontal crosstalk in the panel 100.
進一步地，行驅動單元106會根據上述實施例的列驅動訊號COM1~COMn，調整用來驅動資料線DL1~DLm的行驅動訊號SEG1~SEGm，進而使得行驅動訊號SEG1~SEGm中每一者在連續的圖框內的電壓極性切換次數相同。舉例來說，當面板100為常白(normally white)的面板且驅動模組102欲使像素PIX_j_i~PIX_j_i+3所顯示的灰階顏色皆為白色時，用於驅動資料線DLj的行驅動訊號SEGj在圖框F1~F4中之波形如第3圖所示。在訊框F1的子訊框SF11~SF41中，行驅動訊號SEGj的電壓皆為VS。在一實施例中，電壓VS可為電壓VC的N分之一，其中N為一可調的參數，用來最佳化顯示裝置10的對比(contrast)。在此實施例中，電壓VS為電壓VC的三分之一。此外，在訊框F2的子訊框SF12~SF42中，行驅動訊號SEGj的電壓分別為VS、-VS、VS、-VS；在訊框F3的子訊框SF13~SF43中，行驅動訊號SEGj的電壓分別為0、0、2VS、0；且在訊框F4的子訊框SF13~SF43中，行驅動訊號SEGj的電壓分別為0、-2VS、0、0。搭配第2A、2B圖所示的列驅動訊號COMi~COMi+3，在圖框F1~F4中，像素PIX_j_i~PIX_j_i+3所顯示的灰階顏色皆為白色。根據第3圖，行驅動訊號SEGj在圖框F1~F4中極性切換次數總共為11次。 Further, the row driving unit 106 adjusts the row driving signals SEG1 to SEGm for driving the data lines DL1 to DLm according to the column driving signals COM1 to COMn of the above embodiment, so that each of the row driving signals SEG1 to SEGm is The number of voltage polarity switchings in consecutive frames is the same. For example, when the panel 100 is a normally white panel and the driving module 102 wants to make the gray scale colors displayed by the pixels PIX_j_i~PIX_j_i+3 be white, the row driving signal for driving the data line DLj is used. The waveform of SEGj in frames F1~F4 is shown in Figure 3. In the subframes SF11~SF41 of the frame F1, the voltage of the row driving signal SEGj is VS. In one embodiment, the voltage VS can be one-N of the voltage VC, where N is an adjustable parameter for optimizing the contrast of the display device 10. In this embodiment, the voltage VS is one third of the voltage VC. In addition, in the subframes SF12~SF42 of the frame F2, the voltages of the row driving signals SEGj are VS, -VS, VS, -VS respectively; in the subframes SF13~SF43 of the frame F3, the row driving signals SEGj The voltages of the row driving signals SEGj are 0, -2 VS, 0, 0, respectively, in the sub-frames SF13-SF43 of the frame F4. With the column drive signals COMi~COMi+3 shown in the 2A and 2B diagrams, in the frames F1 to F4, the gray scale colors displayed by the pixels PIX_j_i to PIX_j_i+3 are all white. According to FIG. 3, the number of polarity switching times of the row driving signal SEGj in the frames F1 to F4 is 11 times in total.
請參考第4圖，第4圖為第1圖所示的顯示裝置10運作時相關訊號的示意圖。在此實施例中，面板100為常白的面板，且驅動模組102欲使像素PIX_j_i~PIX_j_i+3所顯示的灰階顏色分別為黑色、黑色、白色、白色。如第4圖所示，在訊框F1的子訊框SF11~SF41中，行驅動訊號SEGj的電壓分別為-VS、-VS、VS、VS；在訊框F2的子訊框SF12~SF42中，行驅動訊號SEGj的電壓分別為VS、-VS、-VS、VS；在訊框F3的子訊框SF13~SF43中，行驅動訊號SEGj的電壓分別為0、0、0、2VS；而在訊框F4的子訊框SF13~SF43中，行驅動訊號SEGj的電壓分別為2VS、0、0、0、0。如此一來，搭配第2A、2B圖所示的列驅動訊號COMi~COMi+3，像素PIX_j_i ~PIX_j_i+3在圖框F1~F4中所顯示的灰階顏色即分別為黑色、黑色、白色、白色。在此實施例中，行驅動訊號SEGj在圖框F1~F4中極性切換次數總共為11次。換言之，無論像素PIX_j_i~PIX_j_i+3所顯示的灰階顏色為何，行驅動訊號SEGj在圖框F1~F4中極性切換次數皆維持固定值。如此一來，面板100中垂直方向的串音可被有效降低。 Please refer to FIG. 4, which is a schematic diagram of related signals when the display device 10 is operated in FIG. In this embodiment, the panel 100 is a normally white panel, and the driving module 102 is configured to make the grayscale colors displayed by the pixels PIX_j_i~PIX_j_i+3 black, black, white, and white, respectively. As shown in FIG. 4, in the sub-frames SF11-SF41 of the frame F1, the voltages of the row driving signals SEGj are -VS, -VS, VS, VS, respectively; in the sub-frames SF12~SF42 of the frame F2. The voltage of the row driving signal SEGj is VS, -VS, -VS, VS respectively; in the sub-frames SF13~SF43 of the frame F3, the voltages of the row driving signals SEGj are 0, 0, 0, 2VS respectively; In the sub-frames SF13-SF43 of the frame F4, the voltages of the row driving signals SEGj are 2VS, 0, 0, 0, 0, respectively. In this way, with the column drive signal COMi~COMi+3 shown in the 2A and 2B diagrams, the pixel PIX_j_i ~PIX_j_i+3 The grayscale colors displayed in frames F1~F4 are black, black, white, and white. In this embodiment, the row drive signal SEGj has a polarity switching number of 11 times in the frames F1 to F4. In other words, regardless of the grayscale color displayed by the pixels PIX_j_i~PIX_j_i+3, the row drive signal SEGj maintains a fixed number of polarity switching times in the frames F1 to F4. As a result, the crosstalk in the vertical direction of the panel 100 can be effectively reduced.
以下敘述將透過矩陣方式，進一步解釋上述實施例中顯示裝置10調整列驅動訊號COMi~COMi+3及產生相對應行驅動訊號SEGj的流程。首先，列驅動訊號COMi~COMi+3於圖框F1的子圖框SF11~SF41中的電壓可以下列矩陣M1表示：
矩陣M1與列驅動訊號COMi~COMi+3的電壓間之關係請參考下列表1：
根據表1可得知，矩陣M1的直行對應於列驅動訊號COMi~COMi+3，且橫列對應於子圖框SF11~SF41。當矩陣M1中元素為1時，代 表所對應的驅動訊號在所對應的子訊框中的電壓為VC；而當矩陣M1中元素為-1時，代表所對應的驅動訊號在所對應的子訊框中的電壓為電壓-VC。由矩陣M1及表1可知，用來在圖框F1中產生列驅動訊號COMi~COMi+3的矩陣為正交矩陣，且每一直行由1切換成-1或由-1切換成1的次數(即列驅動訊號COMi~COMi+3各自的電壓極性切換次數)相差不超過1次(需計算一開始由電壓0上升或下降及最後回歸到電壓0的極性切換次數)。 As can be seen from Table 1, the straight line of the matrix M1 corresponds to the column drive signals COMi~COMi+3, and the horizontal rows correspond to the sub-frames SF11~SF41. When the element in matrix M1 is 1, the generation The voltage corresponding to the driving signal in the corresponding sub-frame is VC; and when the element in the matrix M1 is -1, the voltage of the corresponding driving signal in the corresponding sub-frame is voltage-VC . It can be seen from the matrix M1 and Table 1 that the matrix used to generate the column drive signals COMi~COMi+3 in the frame F1 is an orthogonal matrix, and the number of times each line is switched from 1 to -1 or from -1 to 1 (The number of voltage polarity switching times of the column drive signals COMi~COMi+3) is not more than one time (it is necessary to calculate the number of polarity switchings from the start or fall of voltage 0 and the last return to voltage 0).
接下來，透過將矩陣M1的第1列與第4列調換、將第2列與第3列調換並將第2列及第4列加上負號，可得到一矩陣M2，如下所示：
其中，矩陣M2可對應於圖框F2中列驅動訊號COMi~COMi+3的電壓，請參考下列表2：
由矩陣M2及表2可知，用來在圖框F2中產生列驅動訊號COMi~COMi+3的矩陣也是正交矩陣，且每一直行由1切換成-1或由-1切換成1的次數相差亦不超過1次。 As can be seen from the matrix M2 and Table 2, the matrix used to generate the column drive signals COMi~COMi+3 in the frame F2 is also an orthogonal matrix, and the number of times each line is switched from 1 to -1 or from -1 to 1 The difference is no more than 1 time.
進一步地，透過將矩陣M1的第2行加上負號，可得到一矩陣M3，如下所示：
其中，矩陣M3可對應於圖框F3中列驅動訊號COMi~COMi+3的電壓，請參考下列表3：
由矩陣M3及表3可知，用來在圖框F3中產生列驅動訊號COMi~COMi+3的矩陣依然是正交矩陣，且每一直行由1切換成-1或由-1切換成1的次數等同於矩陣M1。 As can be seen from the matrix M3 and Table 3, the matrix used to generate the column drive signals COMi~COMi+3 in the frame F3 is still an orthogonal matrix, and each line is switched from 1 to -1 or from -1 to 1. The number of times is equivalent to the matrix M1.
最後，透過將矩陣M3的第1列與第4列調換、將第2列與第3列調換並將第2列及第4列加上負號，可得到一矩陣M4，如下所示：
其中，矩陣M4可對應於圖框F4中列驅動訊號COMi~COMi+3
的電壓，請參考下列表4：
由矩陣M4及表4可知，用來在圖框F4中產生列驅動訊號COMi~COMi+3的矩陣還是正交矩陣，且每一直行由1切換成-1或由-1切換成1的次數等同於矩陣M2。根據表1~表4，在圖框F1~F4內列驅動訊號COMi~COMi+3的電壓極性切換次數相同，從而有效降低面板中水平方向的串音。 As can be seen from the matrix M4 and Table 4, the matrix used to generate the column drive signals COMi~COMi+3 in the frame F4 is also an orthogonal matrix, and the number of times each line is switched from 1 to -1 or from -1 to 1 Equivalent to matrix M2. According to Tables 1 to 4, the voltage polarity switching times of the driving signals COMi~COMi+3 in the frames F1 to F4 are the same, thereby effectively reducing the crosstalk in the horizontal direction of the panel.
進一步地，根據矩陣M1~M4及像素PIX_j_i~PIX_j_i+3所欲顯示的灰階顏色，可得出資料驅動訊號SEGj在圖框F1~F4中的電壓值。舉例來說，當面板100為常白的面板且像素PIX_j_i~PIX_j_i+3所欲顯示的灰階顏色為黑色、黑色、白色、白色時，可將像素PIX_j_i~PIX_j_i+3所需達到之電壓值簡化為矩陣M5，如下所示：
矩陣M5的直行對應於像素PIX_j_i~PIX_j_i+3所欲達到之灰階電壓，且橫列對應於像素PIX_j_i~PIX_j_i+3。在矩陣M5中，元素1代表所欲達到之灰階電壓對應於白色；元素-1則代表所欲達到之灰階電壓對應於
黑色。透過將矩陣M1~M4乘上矩陣M5，可得對應於資料驅動訊號SEGj在圖框F1~F4中的電壓的矩陣M6~M9，矩陣M6~M9可被表示為：
矩陣M6的直行對應於行驅動訊號SEGj，且橫列對應於子圖框SF11~SF41，其餘以此類推。並且，在矩陣M6~M9中，元素2代表行驅動訊號SEGj的電壓為VS；元素4代表行驅動訊號SEGj的電壓為2VS；元素-2代表行驅動訊號SEGj的電壓為-VS；元素-4代表行驅動訊號SEGj的電壓為-2VS。由矩陣M6~矩陣M9可知，行驅動訊號SEGj的電壓極性切換次數為11次(3+4+2+2)(需計算一開始由電壓0上升或下降及最後回歸到電壓0的次數)。 The straight line of the matrix M6 corresponds to the row driving signal SEGj, and the horizontal row corresponds to the sub-frames SF11~SF41, and so on. Moreover, in the matrix M6~M9, the element 2 represents the voltage of the row driving signal SEGj is VS; the element 4 represents the voltage of the row driving signal SEGj is 2VS; the element-2 represents the voltage of the row driving signal SEGj is -VS; element-4 The voltage representing the row drive signal SEGj is -2 VS. It can be seen from the matrix M6 to the matrix M9 that the number of times of the polarity switching of the row driving signal SEGj is 11 times (3+4+2+2) (the number of times from the start or fall of the voltage 0 and the last return to the voltage 0 is calculated).
相似地，當面板100為常白的面板且像素PIX_j_i~PIX_j_i+3所欲顯示的灰階顏色皆為白色時，可將像素PIX_j_i~PIX_j_i+3所需達到之電壓值簡化為矩陣M10，如下所示：
如同前述，矩陣M10的直行對應於像素PIX_j_i~PIX_j_i+3所欲達到之灰階電壓，且橫列對應於像素PIX_j_i~PIX_j_i+3。在矩陣M10中，元素1代表所欲達到之灰階電壓對應於白色。透過將矩陣M1~M4乘上矩陣M10，可得對應於資料驅動訊號SEGj在圖框F1~F4中的電壓的矩陣M11~M14，矩陣M11~M14可被表示為：
矩陣M11的直行對應於行驅動訊號SEGj，且橫列對應於子圖框SF11~SF41，其餘以此類推。並且，在矩陣M11~M14中，元素2代表行驅動訊號SEGj的電壓為VS；元素4代表行驅動訊號SEGj的電壓為電壓2VS；元素-2代表行驅動訊號SEGj的電壓為-VS；元素-4代表行驅動訊號SEGj的電壓為-2VS。由矩陣M11~矩陣M14可知，行驅動訊號SEGj的電壓極性切換次數也為11次(2+5+2+2)。藉由改變像素PIX_j_i~PIX_j_i+3所欲顯
示之灰階顏色並重複取得M6~M9的步驟，可得下列表5_1~5_4：
由表5_1~5_4可知，無論像素PIX_j_i~PIX_j_i+3所顯示的灰階顏色為何，行驅動訊號SEGj在圖框F1~F4中極性切換次數皆維持固定值。如此一來，面板100中垂直方向的串音可被有效降低。 It can be seen from Tables 5_1~5_4 that regardless of the grayscale color displayed by the pixels PIX_j_i~PIX_j_i+3, the row drive signal SEGj maintains a fixed number of polarity switching times in the frames F1~F4. As a result, the crosstalk in the vertical direction of the panel 100 can be effectively reduced.
在上述實施例中，設計者首先取得一4*4的正交矩陣MO_1作為用於連續4個圖框中一第一圖框的矩陣(如圖框F1的矩陣M1)，其中矩陣MO_1每一行直行由1切換成-1或由-1切換成1的次數差距不超過1次。接下來，透過將矩陣MO_1中第1列與第4列調換、將第2列與第3列調換及將第2列及第4列加上負號，即可取得用於連續4個圖框中一第二圖框的矩陣MO_2(如圖框F2的矩陣M2)。然後，透過將矩陣MO_1中的第2行加上負號，即可取得用於連續4個圖框中一第三圖框的矩陣MO_3(如圖框F3的矩陣M3)。最後，透過將正交矩陣MO_1中第1列與第4列調換、將第2列與第3列調換、將第2列及第4列加上負號及將第2行加上負號，即可取得用於連續4個圖框中一第四圖框的矩陣MO_4(如圖框F4的矩陣M4)。根據矩陣MO1_1~MO1_4，列驅動訊號COMi~COMi+3在連續4個圖框內的電壓極性切換次數相同，面板中水平方向的串音可被有效降低。進一步地，根據矩陣MO1_1~MO1_4，行驅動訊號SEGj在連續4個圖框中極性切換次數皆維持固定值。如此一來，面板100中垂直方向的串音可被有效降低。 In the above embodiment, the designer first obtains a 4*4 orthogonal matrix MO_1 as a matrix for a first frame in four consecutive frames (a matrix M1 of the frame F1), wherein each row of the matrix MO_1 The number of times the line is switched from 1 to -1 or from -1 to 1 does not exceed 1 time. Next, by replacing the first column and the fourth column in the matrix MO_1, swapping the second column and the third column, and adding the minus sign to the second column and the fourth column, the four frames can be obtained for four consecutive frames. The matrix MO_2 of the second frame of the first one (the matrix M2 of the frame F2). Then, by adding the minus sign to the second row in the matrix MO_1, the matrix MO_3 for a third frame in the four consecutive frames can be obtained (the matrix M3 of the frame F3). Finally, by swapping the first column and the fourth column of the orthogonal matrix MO_1, swapping the second column and the third column, adding the minus sign to the second column and the fourth column, and adding the minus sign to the second row, The matrix MO_4 for a fourth frame in four consecutive frames can be obtained (the matrix M4 of the frame F4). According to the matrix MO1_1~MO1_4, the column drive signals COMi~COMi+3 have the same number of voltage polarity switching times in the four consecutive frames, and the horizontal crosstalk in the panel can be effectively reduced. Further, according to the matrix MO1_1~MO1_4, the row driving signal SEGj maintains a fixed value for the number of polarity switching times in four consecutive frames. As a result, the crosstalk in the vertical direction of the panel 100 can be effectively reduced.
根據不同應用及設計理念，本領域具通常知識者應該實施合適的更動及修改。舉例來說，矩陣M1~M4與列驅動訊號COMi~COMi+3間之 對應關係不限於上述實施例。在一實施例中，列驅動單元104可分別根據矩陣M4~M1產生列驅動訊號COMi~COMi+3，且不限於此。此外，為了避免顯示裝置10中面板100產生極化，柵極驅動單元104在利用矩陣M1~M4產生用於圖框F1~F4中的列驅動訊號COMi~COMi+3後，可將矩陣M1~M4乘上-1(即矩陣-M1、-M2、-M3、-M4)後作為用來產生圖框F1~F4後連續的圖框F5~F8中的列驅動訊號COMi~COMi+3的矩陣。也就是說，圖框F5~F8中的列驅動訊號COMi~COMi+3分別為圖框F1~F4中列驅動訊號COMi~COMi+3的反向訊號。 Depending on the application and design philosophy, those of ordinary skill in the art should implement appropriate changes and modifications. For example, between the matrixes M1~M4 and the column drive signals COMi~COMi+3 The correspondence is not limited to the above embodiment. In an embodiment, the column driving unit 104 can generate the column driving signals COMi~COMi+3 according to the matrices M4~M1, respectively, and is not limited thereto. In addition, in order to avoid polarization of the panel 100 in the display device 10, the gate driving unit 104 can generate the matrix driving signals COMi~COMi+3 in the frames F1~F4 by using the matrices M1~M4, and then the matrix M1~ M4 is multiplied by -1 (that is, the matrix -M1, -M2, -M3, -M4) as a matrix for generating the column drive signals COMi~COMi+3 in the continuous frames F5~F8 after the frame F1~F4. . That is to say, the column drive signals COMi~COMi+3 in the frames F5~F8 are the reverse signals of the column drive signals COMi~COMi+3 in the frames F1~F4, respectively.
需注意的是，上述實施例的圖框F1~F4亦可為不連續的圖框。 在一實施例中，顯示裝置10首先取得4*4的正交矩陣MO1_1、MO2_1，其中矩陣MO1_1、MO2_1每一行直行由1切換成-1或由-1切換成1的次數差距不超過1次。接下來，透過分別將矩陣MO1_1、MO2_1中第1列與第4列調換、將第2列與第3列調換及將第2列及第4列加上負號，可分別取得矩陣MO1_2、MO2_2。然後，透過將矩陣MO1_1、MO2_1中的第2行加上負號，取得用於的矩陣MO1_3、MO2_3。最後，透過將矩陣MO1_1、MO2_1中第1列與第4列調換、將第2列與第3列調換、將第2列及第4列加上負號及將第2行加上負號，可取得矩陣MO1_4、MO2_4。矩陣MO1_1~MO1_4可用於產生連續4個圖框中列驅動訊號COMi~COMi+3，以使列驅動訊號COMi~COMi+3在連續4個圖框內的電壓極性切換次數相同。相似地，矩陣MO2_1~MO2_4也可用於產生連續4個圖框中列驅動訊號COMi~COMi+3，以使列驅動訊號COMi~COMi+3在連續4個圖框內的電壓極性切換次數相同。在此實施例中，顯示裝置中列驅動單元可分別根據矩陣MO1_1、MO2_1、MO1_2、MO2_2、MO1_3、MO2_3、MO1_4、MO2_4依序產生連續8個圖框內的列驅動訊號COMi~COMi+3。據此，列驅動訊號COMi~COMi+3在連續8個圖框內的電壓極性切換次數相同，且行驅動訊號 SEGj在連續8個圖框中極性切換次數皆維持固定值，從而有效降低顯示裝置的面板中水平方向及垂直方向的串音。 It should be noted that the frames F1 to F4 of the above embodiment may also be discontinuous frames. In an embodiment, the display device 10 first obtains 4*4 orthogonal matrices MO1_1, MO2_1, wherein the matrix MO1_1, MO2_1 is switched from 1 to -1 or from -1 to 1 each time the line is not more than 1 time. . Next, the matrix MO1_2, MO2_2 can be obtained by respectively changing the first column and the fourth column of the matrix MO1_1, MO2_1, the second column and the third column, and the second column and the fourth column by a negative sign. . Then, by adding a minus sign to the second row of the matrices MO1_1 and MO2_1, the matrices MO1_3 and MO2_3 are obtained. Finally, by replacing the first column and the fourth column of the matrix MO1_1, MO2_1, the second column and the third column, the second column and the fourth column with a negative sign, and the second row with a negative sign. The matrices MO1_4, MO2_4 can be obtained. The matrix MO1_1~MO1_4 can be used to generate the column drive signals COMi~COMi+3 in four consecutive frames, so that the voltage polarity switching times of the column drive signals COMi~COMi+3 in the four consecutive frames are the same. Similarly, the matrix MO2_1~MO2_4 can also be used to generate the column drive signals COMi~COMi+3 in four consecutive frames so that the voltage polarity switching times of the column drive signals COMi~COMi+3 in the four consecutive frames are the same. In this embodiment, the column driving unit in the display device can sequentially generate the column driving signals COMi~COMi+3 in the consecutive eight frames according to the matrices MO1_1, MO2_1, MO1_2, MO2_2, MO1_3, MO2_3, MO1_4, and MO2_4, respectively. Accordingly, the column drive signals COMi~COMi+3 have the same number of voltage polarity switching times in consecutive 8 frames, and the row drive signals are SEGj maintains a fixed number of polarity switching times in eight consecutive frames, thereby effectively reducing crosstalk in the horizontal and vertical directions of the panel of the display device.
上述驅動模組產生列驅動訊號的過程可被歸納為一驅動方法50，如第5圖所示，驅動方法50用於具有一面板的一顯示裝置中，且包含有以下步驟：步驟500：開始。 The process of generating the column driving signals by the driving module can be summarized as a driving method 50. As shown in FIG. 5, the driving method 50 is used in a display device having a panel, and includes the following steps: Step 500: Start .
步驟502：產生一第一列驅動訊號、一第二列驅動訊號、一第三列驅動訊號及一第四列驅動訊號，以在一第一圖框、一第二圖框、一第三圖框及一第四圖框內同時驅動該面板中複數條掃描線的一第一掃描線、一第二掃描線、一第三掃描線及一第四掃描線。 Step 502: Generate a first column driving signal, a second column driving signal, a third column driving signal, and a fourth column driving signal to be in a first frame, a second frame, and a third image. A first scan line, a second scan line, a third scan line and a fourth scan line of the plurality of scan lines in the panel are simultaneously driven in the frame and the fourth frame.
步驟504：調整該第一列驅動訊號、該第二列驅動訊號、該第三列驅動訊號及該第四列驅動訊號，以使該第一列驅動訊號、該第二列驅動訊號、該第三列驅動訊號及該第四列驅動訊號在該第一圖框內的電壓極性切換次數彼此之間的差距小於等於1。 Step 504: Adjust the first column driving signal, the second column driving signal, the third column driving signal, and the fourth column driving signal, so that the first column driving signal, the second column driving signal, the first The difference between the number of voltage polarity switching times of the three columns of driving signals and the fourth column of driving signals in the first frame is less than or equal to one.
步驟506：調整該第一列驅動訊號、該第二列驅動訊號、該第三列驅動訊號及該第四列驅動訊號，以使該第二圖框內的該第一列驅動訊號為該第一圖框內該第二列驅動訊號的反向訊號；使該第二圖框內的該第二列驅動訊號為該第一圖框內該第一列驅動訊號；使該第二圖框內的該第三列驅動訊號為該第一圖框內該第四列驅動訊號的反向訊號；及使該第二圖框內的該第四列驅動訊號為該第一圖框內該第三列驅動訊號。 Step 506: Adjust the first column driving signal, the second column driving signal, the third column driving signal, and the fourth column driving signal, so that the first column driving signal in the second frame is the first a second column driving signal reverse signal in the frame; the second column driving signal in the second frame is the first column driving signal in the first frame; The third column driving signal is a reverse signal of the fourth column driving signal in the first frame; and the fourth column driving signal in the second frame is the third in the first frame Column drive signal.
步驟508：調整該第一列驅動訊號、該第二列驅動訊號、該第三列驅動訊號及該第四列驅動訊號，以使該第三圖框內的該第一列驅動訊號、第三列驅動訊號及該第四列驅動訊號分別為該第一圖框的該第一列驅動訊號、第三列驅動訊號及該第四列驅動訊號，及使該第三圖框內的該第二列驅動訊號為該第一圖框內該第二列驅動訊號的反向訊號。 Step 508: Adjust the first column driving signal, the second column driving signal, the third column driving signal, and the fourth column driving signal to enable the first column driving signal and the third frame in the third frame The column driving signal and the fourth column driving signal are respectively the first column driving signal, the third column driving signal and the fourth column driving signal of the first frame, and the second frame in the third frame The column driving signal is a reverse signal of the second column driving signal in the first frame.
步驟510：調整該第一列驅動訊號、該第二列驅動訊號、該第三 列驅動訊號及該第四列驅動訊號，以使該第四圖框內的該第一列驅動訊號為該第三圖框內該第二列驅動訊號；使該第四圖框內的該第二列驅動訊號等同於該第三圖框內的該第一列驅動訊號的反向訊號；使該第四圖框內的該第三列驅動訊號為該第三圖框內該第四列驅動訊號的反向訊號；及使該第四圖框內的該第四列驅動訊號為該第三圖框內該第三列驅動訊號。 Step 510: Adjust the first column driving signal, the second column driving signal, and the third The column driving signal and the fourth column driving signal are such that the first column driving signal in the fourth frame is the second column driving signal in the third frame; The second column driving signal is equivalent to the reverse signal of the first column driving signal in the third frame; the third column driving signal in the fourth frame is the fourth column driving in the third frame The reverse signal of the signal; and the fourth column driving signal in the fourth frame is the third column driving signal in the third frame.
步驟512：結束。 Step 512: End.
根據驅動方法50，用於驅動掃描線的列驅動訊號在連續圖框內的電壓極性切換次數相同，且用於驅動資料線的行驅動訊號在連續圖框中極性切換次數皆維持固定值，從而有效降低面板中水平方向及垂直方向的串音。驅動方法50的詳細運作過程可參考上述，為求簡潔，在此不贅述。 According to the driving method 50, the number of polarity switching of the column driving signals for driving the scanning lines in the continuous frame is the same, and the number of polarity switching times of the row driving signals for driving the data lines in the continuous frame is maintained at a fixed value, thereby Effectively reduces crosstalk in the horizontal and vertical directions in the panel. For detailed operation of the driving method 50, reference may be made to the above, and for brevity, it will not be described herein.
綜上所述，驅動模組透過調整用來驅動面板中掃描線的列驅動訊號，使列驅動訊號在連續圖框中的電壓極性切換次數相同，從而降低顯示裝置的面板中水平方向的串音。進一步地，依據調整後的列驅動訊號，對應於任意灰階顏色的行驅動訊號在連續圖框中的電壓極性切換次數亦為相同，面板中垂直方向的串音可被有效降低。 In summary, the driving module adjusts the column driving signals for driving the scanning lines in the panel to make the voltage polarity switching of the column driving signals in the continuous frame the same, thereby reducing the horizontal crosstalk in the panel of the display device. . Further, according to the adjusted column driving signal, the number of voltage polarity switching times of the row driving signals corresponding to any gray scale color in the continuous frame is also the same, and the crosstalk in the vertical direction of the panel can be effectively reduced.
以上所述僅為本發明之較佳實施例，凡依本發明申請專利範圍所做之均等變化與修飾，皆應屬本發明之涵蓋範圍。 The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.
50‧‧‧驅動方法 50‧‧‧ Driving method
500~512‧‧‧步驟 500~512‧‧‧Steps
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