TWI409781B - Source driver, display device using the same and driving method of source driver - Google Patents
Source driver, display device using the same and driving method of source driver Download PDFInfo
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本發明是關於一種源極驅動器、使用其之顯示裝置與源極驅動之驅動方法,且特別是關於一種利用複數個驅動通道來進行顯示面板之點反轉(dot inversion)之源極驅動器,其中各該驅動通道在不同的掃描期間中負責輸出相同極性之資料驅動電壓。 The present invention relates to a source driver, a display device using the same, and a source driving method, and more particularly to a source driver for performing dot inversion of a display panel by using a plurality of driving channels, wherein Each of the drive channels is responsible for outputting data drive voltages of the same polarity during different scan periods.
圖1為根據習知技術之液晶顯示(liquid crystal display,LCD)裝置之示意圖。液晶顯示裝置100包括閘極驅動器110、源極驅動器120以及顯示面板130。顯示面板100包括以矩陣方式設置之複數個畫素單元131,每一畫素單元131耦接於掃描線111其中之一與資料線121其中之一。當閘極驅動器110致能其中一條掃描線111時,源極驅動器120會經由資料線121提供驅動電壓至對應掃描線上之畫素單元131。在液晶顯示裝置100中之驅動系統中,源極驅動器120是一個重要元件,其用以將對應於畫素單元131的數位信號轉換為驅動電壓,且將驅動電壓傳送至畫素單元131以控制畫素單元131中液晶的旋轉。 1 is a schematic diagram of a liquid crystal display (LCD) device according to the prior art. The liquid crystal display device 100 includes a gate driver 110, a source driver 120, and a display panel 130. The display panel 100 includes a plurality of pixel units 131 arranged in a matrix, and each of the pixel units 131 is coupled to one of the scan lines 111 and one of the data lines 121. When the gate driver 110 enables one of the scan lines 111, the source driver 120 supplies the driving voltage to the pixel unit 131 on the corresponding scan line via the data line 121. In the driving system in the liquid crystal display device 100, the source driver 120 is an important component for converting a digital signal corresponding to the pixel unit 131 into a driving voltage, and transmitting the driving voltage to the pixel unit 131 for control. The rotation of the liquid crystal in the pixel unit 131.
液晶的旋轉方向與提供至液晶的電場有關,為了排除儲存在液晶中之直流殘留電壓以及避免液晶極化,液晶顯示面板100應該以極性反轉的方式驅動,也就是說不同極性(例如正極性與負極性)的驅動電壓會在不同的圖框期間 中交替提供至畫素單元131。極性反轉的驅動方式則例如以下幾種:行反轉(column inversion)、列反轉(row inversion)、面反轉(frame inversion)與點反轉(dot inversion)。 The direction of rotation of the liquid crystal is related to the electric field supplied to the liquid crystal. In order to eliminate the DC residual voltage stored in the liquid crystal and to avoid polarization of the liquid crystal, the liquid crystal display panel 100 should be driven in a polarity inversion manner, that is, different polarity (for example, positive polarity). Drive voltage with negative polarity) will be during different frames The middle is alternately supplied to the pixel unit 131. The polarity inversion driving methods are, for example, the following: column inversion, row inversion, frame inversion, and dot inversion.
參照圖1,關於點反轉,兩個相鄰的畫素單元131是以不同極性的驅動電壓來驅動,其中“+”代表正極性,而“-”代表負極性。源極驅動器120中的每一驅動通道應該在連續的兩個掃描期間中分別提供正極性與負極性的驅動電壓。正極性電壓與負極性電壓之間的電壓擺幅(voltage swing)高且會導致源極驅動器的功率消耗上升與液晶顯示裝置100的溫度上升。 Referring to FIG. 1, with respect to dot inversion, two adjacent pixel units 131 are driven with driving voltages of different polarities, where "+" represents positive polarity and "-" represents negative polarity. Each drive channel in the source driver 120 should provide a positive and negative drive voltage for each of the two consecutive scan periods. The voltage swing between the positive polarity voltage and the negative polarity voltage is high and the power consumption of the source driver increases and the temperature of the liquid crystal display device 100 rises.
採用行反轉或面反轉之液晶顯示裝置100,由於源極驅動器會在不同的掃描期間中提供相同極性的驅動電壓,因此可降低功率消耗。然而,比起其它驅動方式,以點反轉驅動之液晶顯示裝置100由於具有以下幾種優點,因此仍然具有較好的顯示品質,其優點例如發生串音與閃爍現象的機率較低。因此,就點反轉的驅動而言,源極驅動器的設計應該克服功率消耗的問題。 With the liquid crystal display device 100 of the row inversion or the face inversion, since the source driver supplies driving voltages of the same polarity in different scanning periods, power consumption can be reduced. However, compared with other driving methods, the liquid crystal display device 100 driven by dot inversion has better display quality due to the following advantages, and its advantages such as the occurrence of crosstalk and flicker are low. Therefore, in terms of point-inverted driving, the design of the source driver should overcome the problem of power consumption.
本發明提供一種源極驅動器與其驅動方法,源極驅動器可藉由多個驅動通道在顯示面板上執行點反轉,其中每一驅動通道輸出同極性的資料驅動電壓以降低功率消耗。此外,本發明更提供使用此源極驅動器之顯示裝置,同樣 具有降低功率消耗的效果。 The invention provides a source driver and a driving method thereof. The source driver can perform dot inversion on a display panel by using a plurality of driving channels, wherein each driving channel outputs a data driving voltage of the same polarity to reduce power consumption. In addition, the present invention further provides a display device using the source driver, and the same Has the effect of reducing power consumption.
承上述,本發明提供一種適用於顯示面板之源極驅動器,其中顯示面板包括複數條掃描線,每一掃描線具有N個畫素單元,其中N為正整數。源極驅動器包括複數個驅動通道,在第一掃描期間中,第1驅動通道至第N驅動通道分別驅動上述掃描線中之第一掃描線上之N個畫素單元;在第二掃描期間中,第2驅動通道至第(N+1)驅動通道分別驅動上述掃描線中之第二掃描線上之N個畫素單元 In view of the above, the present invention provides a source driver suitable for use in a display panel, wherein the display panel includes a plurality of scan lines, each scan line having N pixel units, where N is a positive integer. The source driver includes a plurality of driving channels. In the first scanning period, the first driving channel to the Nth driving channel respectively drive N pixel units on the first scan line of the scan lines; during the second scanning period, The second driving channel to the (N+1)th driving channel respectively drive N pixel units on the second scan line of the scan lines
在上述源極驅動器之一實施例中,奇數驅動通道分別輸出第一極性之複數個資料驅動電壓,偶數驅動通道則分別輸出第二極性之複數個資料驅動電壓。 In one embodiment of the source driver, the odd drive channels respectively output a plurality of data drive voltages of the first polarity, and the even drive channels respectively output a plurality of data drive voltages of the second polarity.
本發明另提出一種源極驅動器的驅動方法,其源極驅動器包括複數個驅動通道。上述驅動方法適用於驅動複數條具有N個畫素單元的掃描線,其中N為正整數。在第一掃描期間中,源極驅動器經由第1驅動通道至第N驅動通道傳輸複數個資料驅動電壓至掃描線中之第一掃描線上的N個畫素單元,在第二掃描期間中,經由第2驅動通道至第(N+1)驅動通道傳輸資料驅動電壓至掃描線中之第二掃描線上之N個畫素單元。 The invention further provides a driving method of a source driver, wherein the source driver comprises a plurality of driving channels. The above driving method is suitable for driving a plurality of scanning lines having N pixel units, where N is a positive integer. In the first scanning period, the source driver transmits the plurality of data driving voltages to the N pixel units on the first scan line of the scan lines via the first driving channel to the Nth driving channel, and in the second scanning period, The second driving channel to the (N+1)th driving channel transmit the data driving voltage to the N pixel units on the second scan line in the scan line.
在上述驅動方法之一實施例中,源極驅動器的偶數驅動通道所輸出的資料驅動電壓具有第一極性,源極驅動器的奇數驅動通道所輸出的資料驅動電壓具有第二極性。 In an embodiment of the driving method, the data driving voltage outputted by the even driving channel of the source driver has a first polarity, and the data driving voltage output by the odd driving channel of the source driver has a second polarity.
本發明又提供一種顯示裝置,顯示裝置包括顯示面板、第一源極驅動器以及第二源極驅動器。顯示面板包括 複數條具有2N個畫素單元之掃描線,其中N為正整數。第一源極驅動器與第二源極驅動器分別包括複數個驅動通道,在第一掃描期間中,第一源極驅動器之第1驅動通道至第N驅動通道與第二源極驅動器之第1驅動通道至第N驅動通道驅動掃描線中之第一掃描線上之2N個畫素單元,而第一源極驅動器之第(N+1)驅動通道與第二源極驅動器之第(N+1)驅動通道則失能。在第二掃描期間中,第一源極驅動器之第2驅動通道至第(N+1)驅動通道與第二源極驅動器之第2驅動通道至第(N+1)驅動通道驅動掃描線中之第二掃描線上之2N個畫素單元,而第一源極驅動器之第1驅動通道與第二源極驅動器之第1驅動通道則失能。第一源極驅動器之第(N+1)驅動通道與第二源極驅動器之第1驅動通道相互耦接。 The present invention further provides a display device including a display panel, a first source driver, and a second source driver. Display panel includes A plurality of scan lines having 2N pixel units, where N is a positive integer. The first source driver and the second source driver respectively include a plurality of driving channels, and the first driving channel of the first source driver to the first driving channel of the first source driver and the first driving of the second source driver during the first scanning period The channel to the Nth driving channel drives 2N pixel units on the first scan line of the scan line, and the (N+1)th drive channel of the first source driver and the (N+1)th of the second source driver The drive channel is disabled. In the second scanning period, the second driving channel to the (N+1)th driving channel of the first source driver and the second driving channel to the (N+1)th driving channel of the second source driver drive the scan line The 2N pixel units on the second scan line are disabled by the first drive channel of the first source driver and the first drive channel of the second source driver. The (N+1)th driving channel of the first source driver and the first driving channel of the second source driver are coupled to each other.
在上述顯示裝置之一實施例中,第一源極驅動器與第二源極驅動器之驅動通道中之奇數驅動通道輸出複數個具有第一極性之資料驅動電壓,而第一源極驅動器與第二源極驅動器之偶數驅動通道輸出複數個具有第二極性之資料驅動電壓。 In an embodiment of the above display device, the odd-numbered driving channels in the driving channels of the first source driver and the second source driver output a plurality of data driving voltages having a first polarity, and the first source driver and the second source The even drive channel of the source driver outputs a plurality of data drive voltages having a second polarity.
本發明又提出一種源極驅動器與其驅動方法,在第一掃描期間中,由第1驅動通道至第N驅動通道驅動顯示面板中之第一掃描線上之N個畫素單元,且在第二掃描期間中,由第2驅動通道至第(N+1)驅動通道驅動顯示面板中之第二掃描線上之N個畫素單元。對於一個驅動通道而言,此驅動通道會在不同掃描期間中依序輸出驅動電壓至鋸齒 掃描的兩個相鄰行上的畫素單元。每一驅動通道在不同的掃描期間負責輸出相同極性之驅動電壓以進行顯示面板中之點反轉。此外,源極驅動器的功率消耗可藉此降低。為讓本發明之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 invention further provides a source driver and a driving method thereof, in the first scanning period, the first driving channel to the Nth driving channel drive N pixel units on the first scanning line in the display panel, and in the second scanning During the period, the Nth pixel unit drives the N pixel units on the second scan line in the display panel from the 2nd drive channel to the (N+1)th drive channel. For a drive channel, this drive channel sequentially outputs the drive voltage to the sawtooth during different scan periods. A pixel unit on two adjacent lines scanned. Each drive channel is responsible for outputting drive voltages of the same polarity during different scans for dot inversion in the display panel. In addition, the power consumption of the source driver can be reduced thereby. The above described features and advantages of the present invention will be more apparent from the following description.
圖2A與圖2B為根據本發明一實施例之顯示裝置在第一掃描期間與第二掃描期間之驅動示意圖。參照圖2A與圖2B,顯示裝置200包括閘極驅動器210、源極驅動器220與顯示面板230。顯示面版230包括複數個以矩陣方式排列之畫素單元231,且每一畫素單元231耦接於掃描線S1至SM之一與資料線D1至DN之一,且每一掃描線S1~SM上具有N個畫素單元231。源極驅動器220具有複數個驅動通道CH1至CHN+1、複數個移位暫存器SR1至SRN、複數個資料拴鎖器L1至LN+1、一移位多工器221以及一輸出多工器222。在本實施例中,以N個驅動通道CH1至CHN加上輔助的驅動通道CHN+1來驅動顯示面板230,資料栓鎖器也是,但其通道數並不限制於驅動通道的個數。 2A and 2B are schematic diagrams showing driving of a display device during a first scanning period and a second scanning period according to an embodiment of the invention. Referring to FIGS. 2A and 2B , the display device 200 includes a gate driver 210 , a source driver 220 , and a display panel 230 . The display panel 230 includes a plurality of pixel units 231 arranged in a matrix, and each pixel unit 231 is coupled to one of the scan lines S 1 to S M and one of the data lines D 1 to D N , and each There are N pixel units 231 on the scanning lines S 1 to S M . The source driver 220 has a plurality of driving channels CH 1 to CH N+1 , a plurality of shift registers SR 1 to SR N , a plurality of data latches L 1 to L N+1 , and a shift multiplexer 221 and an output multiplexer 222. In this embodiment, the display panel 230 is driven by the N driving channels CH 1 to CH N plus the auxiliary driving channel CH N+1 , and the data latch is also, but the number of channels is not limited to the driving channels. number.
在本實施例中,顯示裝置200為單點反轉(one-dot inversion),也就是兩個相鄰畫素單元231是由兩個不同極性的驅動電壓所驅動,例如正極性(表示為“+”)與負極性(表示為“-”)。參照圖2A,在第一掃描期間中,第1驅動通道CH1至第N驅動通道CHN分別驅動掃描線S1至SM中之第一掃描 線上之畫素單元231,例如掃描線S1,其中第一掃描期間為掃描線S1被閘極驅動器210致能的期間。現在,奇數驅動通道CH1、CH3、CH5...分別輸出第一極性(例如正極性)之資料驅動電壓VP1、VP3、VP5...至掃描線S1上之奇數畫素單元231。此外,偶數驅動通道CH2、CH4、CH6...分別輸出第二極性(例如負極性)之資料驅動電壓VP2、VP4、VP6...至掃描線S1上之偶數畫素單元231。由於移位暫存器沒有致能資料拴鎖器LN+1且驅動通道CHN+1不會經由輸出多工器222耦接至資料線,因此驅動通道CHN+1不會被致能。 In the present embodiment, the display device 200 is one-dot inversion, that is, two adjacent pixel units 231 are driven by two driving voltages of different polarities, such as positive polarity (indicated as "+") and negative polarity (expressed as "-"). Referring to Figure 2A, during a first scan, the first scan line of the pixel unit of the first drive channel CH 1 through CH N N channels separately driven drive scan lines S 1 to S M in the 231, the scan lines S 1 e.g. Where the first scan period is a period during which the scan line S 1 is enabled by the gate driver 210. Now, the odd drive channels CH 1 , CH 3 , CH 5 ... respectively output the data driving voltages VP 1 , VP 3 , VP 5 ... of the first polarity (for example, positive polarity) to the odd numbers on the scan line S 1 Prime unit 231. In addition, the even drive channels CH 2 , CH 4 , CH 6 ... respectively output the data driving voltages VP 2 , VP 4 , VP 6 ... of the second polarity (eg, the negative polarity) to the even number on the scan line S 1 Prime unit 231. Since the shift register does not enable the data latch L N+1 and the drive channel CH N+1 is not coupled to the data line via the output multiplexer 222, the drive channel CH N+1 is not enabled. .
在第一掃描期間中,藉由切換移位多工器221,移位暫存器SR1至SRN控制第1驅動通道CH1至第N驅動通道CHN以分別接收對應於掃描線S1上之N個畫素單元231之畫素資料DP1至DPN。同樣的,移位暫存器SR1至SRN依序致能資料拴鎖器L1至LN以由資料匯流排接收畫素資料DP1至DPN。在本技術領域具有通常知識者應當了解上述每一個驅動通道可包括下列元件,如位準移位器、數位/類比轉換器、輸出緩衝器等等。驅動通道CH1至CHN中所包括之數位/類比轉換器分別將畫素資料DP1至DPN轉換至驅動電壓VP1至VPN。然後,驅動通道CH1至CHN分別經由輸出多工器222輸出驅動電壓VP1至VPN至N個畫素單元231。 In the first scanning period, by switching the shift multiplexer 221, the shift registers SR 1 to SR N control the first to Nth driving channels CH 1 to CH N to respectively receive the corresponding scanning lines S 1 The pixel data DP 1 to DP N of the upper N pixel units 231. Similarly, the shift registers SR 1 to SR N sequentially enable the data latches L 1 to L N to receive the pixel data DP 1 to DP N from the data bus. Those of ordinary skill in the art will appreciate that each of the above described drive channels can include the following components, such as level shifters, digital/analog converters, output buffers, and the like. The digital/analog converters included in the drive channels CH 1 to CH N respectively convert the pixel data DP 1 to DP N to the drive voltages VP 1 to VP N . Then, the drive channels CH 1 to CH N output the drive voltages VP 1 to VP N to the N pixel units 231 via the output multiplexer 222, respectively.
請參照圖2B,在第二掃描期間中,第2驅動通道CH2至第(N+1)驅動通道CHN+1驅動掃描線S1至SM中之第二掃描線(例如掃描線S2)上之N個畫素單元231,其中第二掃描期間為閘極驅動器致能掃描線S2的期間。同時,偶數驅動 通道CH2、CH4、CH6...分別輸出第二極性(例如負極性)之資料驅動電壓VP1、VP3、VP5...至掃描線S2上之奇數畫素單元。此外,除了驅動通道CH1之外的奇數驅動通道CH3、CH5...分別輸出第一極性(例如正極性)之資料驅動電壓VP2、VP4、VP6...至掃描線S2上的偶數畫素單元231。由於移位暫存器未致能資料拴鎖器L1且驅動通道CH1不會經由輸出多工器222耦接至資料線,因此驅動通道CH1不會被致能。 Referring to FIG. 2B, in the second scanning period, the second driving channel CH 2 to the (N+1)th driving channel CH N+1 drive the second scanning line (for example, the scanning line S) of the scanning lines S 1 to S M . 2) N number of pixel units 231 on which the scanning during the second gate driver is enabled during the scan lines S 2. At the same time, the even-numbered driving channels CH 2 , CH 4 , CH 6 ... respectively output the data driving voltages VP 1 , VP 3 , VP 5 ... of the second polarity (for example, the negative polarity) to the odd-numbered lines on the scanning line S 2 Prime unit. Further, the odd drive channels CH 3 , CH 5 ... other than the drive channel CH 1 respectively output the data drive voltages VP 2 , VP 4 , VP 6 ... to the scan line S of the first polarity (for example, positive polarity) The even pixel unit 231 on 2 . Since the shift register does not enable the data latch L 1 and the drive channel CH 1 is not coupled to the data line via the output multiplexer 222, the drive channel CH 1 is not enabled.
在第二掃描期間,藉由移位多工器221的切換操作,移位暫存器SR1至SRN控制第2驅動通道CH2至第(N+1)驅動通道CHN+1以分別接收N個畫素資料DP1至DPN,其對應於掃描線S2上之畫素單元231。同樣的,移位暫存器SR1至SRN依序致能資料拴鎖器L2至LN+1,以經由資料匯流排接收畫素資料DP1至DPN。驅動通道CH2至CHN+1所包括之數位/類比轉換器分別將畫素資料DP1至DPN轉換為驅動電壓VP1至VPN。然後,驅動通道CH2至CHN+1分別經由輸出多工器222輸出驅動電壓VP1至VPN至上述N個畫素單元231 During the second scan, by the switching operation of the shift multiplexer 221, the shift registers SR 1 to SR N control the second drive channel CH 2 to the (N+1)th drive channel CH N+1 to respectively N pixel data DP 1 to DP N are received, which correspond to the pixel unit 231 on the scan line S 2 . Similarly, the shift registers SR 1 to SR N sequentially enable the data latches L 2 to L N+1 to receive the pixel data DP 1 to DP N via the data bus. The digital/analog converter included in the drive channels CH 2 to CH N+1 converts the pixel data DP 1 to DP N into drive voltages VP 1 to VP N , respectively . Then, the driving channels CH 2 to CH N+1 output the driving voltages VP 1 to VP N to the N pixel units 231 via the output multiplexer 222, respectively.
當掃描線S3隨著掃描線S2被閘極驅動器210致能時,驅動通道CH1至CHN+1在掃描線S3的致能期間中的操作方式如同圖2A所示。此外,當掃描線S4隨著掃描線S3被閘極驅動器210致能時,驅動通道CH1至CHN+1在掃描線S4的致能期間中的操作方式如同圖2B所示。依此類推,顯示裝置200便可實現單點反轉的驅動方式。雖然上述實施例以單點反轉為例說明,但本技術領域具有通常知識者在經由本發明 之揭露後應可輕易推知雙點反轉(two-dot inversion)或其他反轉類型之實施方式,本發明並不受限於上述實施例。 When the scan line S 3 as shown in the scan line S 2 is enabled gate 210 drives, drive channel CH 1 to CH N + 1 scanning lines during the operation mode can be activated as S 3 of FIG. 2A. Further, when the scan line S 4 is enabled by the gate driver 210 along with the scan line S 3 , the operation of the drive channels CH 1 to CH N+1 during the enable period of the scan line S 4 is as shown in FIG. 2B. By analogy, the display device 200 can realize a single-point inversion driving method. Although the above embodiment is exemplified by a single dot inversion, those skilled in the art can easily infer the implementation of two-dot inversion or other inversion type after the disclosure of the present invention. The present invention is not limited to the above embodiments.
如同上述,在不同的掃描期間中,每一驅動通道負責輸出相同極性之驅動電壓。例如,驅動通道CH2在第一掃描期間中輸出正極性之驅動電壓VP2,且在第二掃描期間中輸出正極性之驅動電壓VP1。由於相同極性的驅動電壓之間的電壓擺幅較小,因此可降低源極驅動器220的功率消耗與降低顯示裝置200的溫度。 As described above, each drive channel is responsible for outputting a drive voltage of the same polarity during different scan periods. For example, the driving channel CH 2 outputs the driving voltage VP 2 of the positive polarity in the first scanning period, and outputs the driving voltage VP 1 of the positive polarity in the second scanning period. Since the voltage swing between the driving voltages of the same polarity is small, the power consumption of the source driver 220 can be reduced and the temperature of the display device 200 can be lowered.
值得注意的是,在每一條掃描線上的N個畫素單元231中,每三個連續畫素單元被人視為一個畫素,其分別對應於紅(R)、綠(G)、藍(B),也就是說,N為3的倍數。因此,在第一掃描期間中,驅動通道CH1至CHN中的每三個連續驅動通道應該分別輸出對應於紅、綠、藍的驅動電壓。在第二掃描期間中,驅動通道CH2至CHN+1中的每三個連續驅動通道應該分別輸出對應於紅、綠、藍的驅動電壓。隨著顯示面板尺寸的增加,單一源極驅動器的驅動通道數可能不覆使用,因此設計人員必須使用多個源極驅動器來驅動這種顯示面板。以下實施例則如同上述,提供使用多個源極驅動器來驅動高解析度顯示面板的相關教示給本技術領域具有通常知識者。 It is worth noting that in each of the N pixel units 231 on each scan line, every three consecutive pixel units are regarded as one pixel, which corresponds to red (R), green (G), and blue ( B), that is, N is a multiple of 3. Thus, during the first scan, each drive channel CH. 1 to three N channels continuous drive output of the CH should correspond to the red, green and blue driving voltage. During the second scan period, every three of the drive channels CH 2 to CH N+1 should respectively output drive voltages corresponding to red, green, and blue. As the size of the display panel increases, the number of drive channels for a single source driver may not be used, so designers must use multiple source drivers to drive such display panels. The following embodiments, as described above, provide the teachings of using a plurality of source drivers to drive high resolution display panels to those of ordinary skill in the art.
圖3A與圖3B為根據本發明一實施例之顯示裝置示意圖,請參照圖3A,顯示裝置300包括閘極驅動器210、源極驅動器321與322以及顯示面板330。顯示面板330包括複數條掃描線S1至SM、複數條資料線D1至D2N+1以及複數個以陣 列方式排列之畫素單元331。每一條掃描線上具有2N個畫素單元331,其為圖2A與圖2B中之顯示面板230的兩倍。其中2N為3的倍數,且每三個連續畫素單元331分別對應於紅、綠與藍。第一掃描線(例如掃描線S1)上的2N個畫素單元331分別耦接於第1資料線D1至第2N資料線D2N,而第二掃描線(例如掃描線S2)上的2N個畫素單元331則分別耦接於第2資料線D2至第(2N+1)資料線D2N+1。源極驅動器321與322分別包括複數個驅動通道CH1至CHN+1、複數個移位暫存器SR1至SRN、複數個資料拴鎖器L1至LN+1以及移位多工器321,其中源極驅動器321中的第(N+1)驅動通道CHN+1連接至源極驅動器322中的第1驅動通道CH1。 3A and FIG. 3B are schematic diagrams of a display device according to an embodiment of the present invention. Referring to FIG. 3A, the display device 300 includes a gate driver 210, source drivers 321 and 322, and a display panel 330. The display panel 330 includes a plurality of scan lines S 1 to S M , a plurality of data lines D 1 to D 2N+1 , and a plurality of pixel units 331 arranged in an array. Each scan line has 2N pixel units 331 which are twice as large as the display panel 230 in FIGS. 2A and 2B. Where 2N is a multiple of 3, and every three consecutive pixel units 331 correspond to red, green, and blue, respectively. The 2N pixel units 331 on the first scan line (for example, the scan line S 1 ) are respectively coupled to the first data line D 1 to the 2N data line D 2N , and the second scan line (for example, the scan line S 2 ) The 2N pixel units 331 are respectively coupled to the second data line D 2 to the (2N+1) data line D2 N+1 . The source drivers 321 and 322 respectively include a plurality of driving channels CH 1 to CH N+1 , a plurality of shift registers SR 1 to SR N , a plurality of data latches L 1 to L N+1 , and a plurality of shifts The 321 of the source driver 321 is connected to the (N+1)th drive channel CH N+1 of the source driver 322 to the first drive channel CH 1 of the source driver 322.
參照圖3A,在第一掃描期間中,源極驅動器321中的第1驅動通道CH1至第N驅動通道CHN與源極驅動器322中之第1驅動通道CH1至第N驅動通道CHN分別驅動掃描線S1上的2N個畫素單元331,而源極驅動器321上的第(N+1)驅動通道CHN+1與源極驅動器322上的第(N+1)驅動通道CHN+1則失能。同時,源極驅動器321、322上的第(N+1)驅動通道CHN+1皆設定為高阻抗以確保信號傳輸的正確。也就是說,在掃描線S1上耦接於第(N+1)資料線DN+1的畫素單元331應該被源極驅動器322中的第1驅動通道CH1所驅動,而非源極驅動器321中的第(N+1)驅動通道CHN+1。 Referring to Figure 3A, during a first scan, the source driver 321 in the first drive channel CH 1 to N drive channel CH N of the source driver 322 in the first drive channel CH 1 to N drive channel CH N The 2N pixel units 331 on the scan line S 1 are respectively driven, and the (N+1)th drive channel CH N+1 on the source driver 321 and the (N+1)th drive channel CH on the source driver 322 are respectively driven. N+1 is disabled. At the same time, the (N+1)th drive channel CH N+1 on the source drivers 321, 322 are all set to high impedance to ensure correct signal transmission. That is, the pixel unit 331 coupled to the (N+1)th data line D N+1 on the scan line S 1 should be driven by the first drive channel CH 1 in the source driver 322 instead of the source. The (N+1)th drive channel CH N+1 in the pole driver 321 .
以源極驅動器321為例,在第一掃描期間中,藉由移位多工器221的切換操作,移位暫存器SR1至SRN依序致能資料拴鎖器L1至LN,使其由資料匯流排接收畫素資料DP1 至DPN,然後控制第1驅動通道CH1至第N驅動通道CHN,使其分別接收對應於掃描線S1上之第1畫素單元331至第N畫素單元331之畫素資料DP1至DPN。驅動通道CH1至CHN使用數位/類比轉換器去將畫素資料DP1至DPN轉換為驅動電壓VP1至VPN,然後經由資料線D1至DN輸出驅動電壓VP1~VPN到第1畫素單元331至第N畫素單元331。在第一掃描期間中,源極驅動器322與源極驅動器321的操作方式相同,在此不再贅述。 Taking the source driver 321 as an example, in the first scanning period, the shift registers SR 1 to SR N sequentially enable the data latches L 1 to L N by the switching operation of the shift multiplexer 221. And receiving the pixel data DP 1 to DP N from the data bus, and then controlling the first driving channel CH 1 to the N driving channel CH N to respectively receive the first pixel unit corresponding to the scanning line S 1 The pixel data DP 1 to DP N of the 331 to Nth pixel units 331. Drive channel CH 1 to CH N using the digital / analog converter to the pixel data DP 1 to DP N into the drive voltage VP 1 through VP N, then via the data line D 1 to D N output drive voltage VP 1 ~ VP N It goes to the first pixel unit 331 to the Nth pixel unit 331. In the first scanning period, the source driver 322 and the source driver 321 operate in the same manner, and details are not described herein again.
請參照圖3B,在第二掃描期間中,源極驅動器321的第2驅動通道CH2至第(N+1)驅動通道CHN+1與源極驅動器322的第2驅動通道CH2至第(N+1)驅動通道CHN+1分別驅動掃描線S2上的2N個畫素單元331,而源極驅動器321中的第1驅動通道CH1與源極驅動器322中的第1驅動通道CH1則失能。同樣的,在第二掃描期間中,耦接於第(N+1)資料線DN+1的掃描線S2上的畫素單元331應該被源極驅動器321中的第(N+1)驅動通道CHN+1所驅動,而非源極驅動器322中的第1驅動通道CH1。 Referring to FIG. 3B, in the second scanning period, the second driving channel CH 2 to the (N+1)th driving channel CH N+1 of the source driver 321 and the second driving channel CH 2 to the source driver 322 are (N+1) drive channel CH N+1 drives 2N pixel units 331 on scan line S 2 , respectively, and first drive channel CH 1 in source driver 321 and first drive channel in source driver 322 CH 1 is disabled. Similarly, in the second scanning period, the pixel unit 331 coupled to the scan line S 2 of the (N+1)th data line D N+1 should be the (N+1)th of the source driver 321 The drive channel CH N+1 is driven instead of the first drive channel CH 1 in the source driver 322.
以源極驅動器321為例,在第二掃描期間中,藉由移位多工器221的切換操作,移位暫存器SR1至SRN依序致能資料拴鎖器L2至LN+1,使其由資料匯流排接收畫素資料DP1至DPN,然後控制第2驅動通道CH2至第(N+1)驅動通道CHN+1,使其分別接收對應於掃描線S2上之第1畫素單元331至第N畫素單元331之畫素資料DP1至DPN。驅動通道CH2至CHN+1使用數位/類比轉換器將畫素資料DP1至DPN轉換 為驅動電壓VP1至VPN,然後經由資料線D2至DN+1輸出驅動電壓VP1~VPN到第1畫素單元331至第N畫素單元331。在第二掃描期間中,源極驅動器322與源極驅動器321的操作方式相同,在此不再贅述。 Taking the source driver 321 as an example, in the second scanning period, the shift registers SR 1 to SR N sequentially enable the data latches L 2 to L N by the switching operation of the shift multiplexer 221. +1 to receive the pixel data DP 1 to DP N from the data bus, and then control the second driving channel CH 2 to the (N+1)th driving channel CH N+1 to respectively receive the corresponding scanning line S the first unit pixel 2 of the pixel units 331 to 331 of the N-th pixel data to the DP 1 DP N. The drive channels CH 2 to CH N+1 convert the pixel data DP 1 to DP N into drive voltages VP 1 to VP N using a digit/analog converter, and then output the drive voltage VP 1 via the data lines D 2 to D N+ 1 . ~VP N to the first pixel unit 331 to the Nth pixel unit 331. In the second scanning period, the source driver 322 and the source driver 321 operate in the same manner, and details are not described herein again.
圖4A與圖4B為根據本發明一實施例之顯示裝置示意圖,請參照圖4A,顯示裝置400包括閘極驅動器210、源極驅動器421~423以及顯示面板430。顯示面板430包括複數條掃描線S1至SM、複數條資料線D1至D2N+1以及複數個以陣列方式排列之畫素單元431。每一條掃描線上具有3N個畫素單元431,其為圖2A與圖2B中之顯示面板230的三倍,然不以此為限。其中每三個連續畫素單元431分別對應於紅、綠與藍。第一掃描線(例如掃描線S1)上的3N個畫素單元431分別耦接於第1資料線D1至第3N資料線D3N,而第二掃描線(例如掃描線S2)上的3N個畫素單元431則分別耦接於第2資料線D2至第(3N+1)資料線D3N+1。 4A and FIG. 4B are schematic diagrams of a display device according to an embodiment of the invention. Referring to FIG. 4A, the display device 400 includes a gate driver 210, source drivers 421-423, and a display panel 430. The display panel 430 includes a plurality of scan lines S 1 to S M , a plurality of data lines D 1 to D 2N+1 , and a plurality of pixel units 431 arranged in an array. Each of the scan lines has 3N pixel units 431, which is three times as large as the display panel 230 in FIG. 2A and FIG. 2B, but is not limited thereto. Each of the three consecutive pixel units 431 corresponds to red, green, and blue, respectively. The 3N pixel units 431 on the first scan line (for example, the scan line S 1 ) are respectively coupled to the first data line D 1 to the 3N data line D 3N , and the second scan line (for example, the scan line S 2 ) The 3N pixel units 431 are respectively coupled to the second data line D 2 to the (3N+1) data line D 3N+1 .
相似於實施例圖3A,源極驅動器421~423分別包括複數個驅動通道CH1至CHN+1、複數個移位暫存器SR1至SRN、複數個資料拴鎖器L1至LN+1以及移位多工器411,而源極驅動器423更包括另一移位暫存器SRN+1。源極驅動器421中的第(N+1)驅動通道CHN+1連接至源極驅動器422中的第1驅動通道CH1,且源極驅動器422中的第(N+1)驅動通道CHN+1連接至源極驅動器423中的第1驅動通道CH1。在第一掃描期間中,源極驅動器421~423中的第1驅動通道CH1至第N驅動通道CHN分別驅動掃描線S1上的3N個畫素單元431,而 源極驅動器421~423上的第(N+1)驅動通道CHN+1則失能。也就是說,在掃描線S1上耦接於第(N+1)資料線DN+1以及第(2N+1)資料線D2N+1的畫素單元431應分別由源極驅動器422及423中的第1驅動通道CH1所驅動之。 Similar to the embodiment of FIG. 3A, the source drivers 421 to 423 respectively include a plurality of driving channels CH 1 to CH N+1 , a plurality of shift registers SR 1 to SR N , and a plurality of data latches L 1 to L N+1 and shift multiplexer 411, and source driver 423 further includes another shift register SR N+1 . The (N+1)th drive channel CH N+1 in the source driver 421 is connected to the first drive channel CH 1 in the source driver 422, and the (N+1)th drive channel CH N in the source driver 422 +1 is connected to the first drive channel CH 1 in the source driver 423. During the first scan, the source driver of the first drive channel 421 ~ 423 CH 1 to N of drive channel CH N respectively driving the scan lines S 3N th pixel on a unit 431, and the source drivers 421 to 423 The (N+1)th drive channel CH N+1 on the upper side is disabled. That is, the pixel units 431 coupled to the (N+1)th data line D N+1 and the (2N+1) data line D 2N+1 on the scan line S 1 should be respectively driven by the source driver 422. And the first driving channel CH 1 of 423 is driven.
以源極驅動器421為例,在第一掃描期間中,藉由移位多工器411的切換操作,移位暫存器SR1至SRN依序致能資料拴鎖器L1至LN,使其由資料匯流排接收畫素資料DP1至DPN,然後控制第1驅動通道CH1至第N驅動通道CHN,使其分別接收對應於掃描線S1上之第1畫素單元431至第N畫素單元431。驅動通道CH1至CHN使用數位/類比轉換器將畫素資料DP1至DPN轉換為驅動電壓VP1至VPN,然後經由資料線D1至DN輸出驅動電壓VP1~VPN到第1畫素單元431至第N畫素單元431。在第一掃描期間中,源極驅動器422~423與源極驅動器421的操作方式相同,而多工器411使源極驅動器423中移位暫存器SRN+1不與資料拴鎖器LN+1連接,故源極驅動器423的第(N+1)驅動通道CHN+1不作動。 Taking the source driver 421 as an example, in the first scanning period, the shift registers SR 1 to SR N sequentially enable the data latches L 1 to L N by the switching operation of the shift multiplexer 411. And receiving the pixel data DP 1 to DP N from the data bus, and then controlling the first driving channel CH 1 to the N driving channel CH N to respectively receive the first pixel unit corresponding to the scanning line S 1 431 to the Nth pixel unit 431. Drive channel CH 1 to CH N using the digital / analog converter converts the pixel data DP 1 to DP N driving voltage VP 1 through VP N, then via the data line D 1 to D N output drive voltage VP 1 ~ VP N to The first pixel unit 431 to the Nth pixel unit 431. In the first scanning period, the source drivers 422-423 operate in the same manner as the source driver 421, and the multiplexer 411 causes the shift register SR N+1 in the source driver 423 not to be associated with the data locker L. N+1 is connected, so the (N+1)th drive channel CH N+1 of the source driver 423 is not activated.
請參照圖4B,在第二掃描期間中,源極驅動器421的第2驅動通道CH2至第N驅動通道CHN、源極驅動器422的第1驅動通道CH1至第N驅動通道CHN、以及源極驅動器423的第1驅動通道CH1至第(N+1)驅動通道CHN+1分別驅動掃描線S2上的3N個畫素單元431,而源極驅動器421中的第1及第(N+1)驅動通道CH1及CHN+1以及源極驅動器422中的第(N+1)驅動通道CHN+1則失能。也就是說,在第二掃描期間中,掃描線S2上耦接於第(N+1)資料線DN+1及第(2N+1)資料 線D2N+1的畫素單元431仍分別由源極驅動器422及423中的第1驅動通道CH1所驅動之。 Referring to FIG. 4B, during the second scan, the source driver of the second drive channel 421 CH 2 through N-th driving channel CH N, the source driver of the first drive channel 422 CH 1 through N-th driving channel CH N, And the first driving channel CH 1 to the (N+1)th driving channel CH N+1 of the source driver 423 respectively drive the 3N pixel units 431 on the scanning line S 2 , and the first and the source drivers 421 section 422 of the (N + 1) driving channels CH 1 and CH N + 1 and the source driver (N + 1) the drive channel CH N + 1 then the loss of energy. That is, in the second scanning period, the pixel unit 431 coupled to the (N+1)th data line D N+1 and the (2N+1)th data line D 2N+1 on the scan line S 2 is still Driven by the first drive channel CH 1 of the source drivers 422 and 423, respectively.
在第二掃描期間中,經由移位多工器411的切換操作,源極驅動器421中移位暫存器SR1至SRN-1依序致能資料拴鎖器L2至LN,而多工器411使源極驅動器421中移位暫存器SRN不與資料拴鎖器LN+1連接。另外,經由移位多工器411的切換操作,源極驅動器422中移位暫存器SR1至SRN依序致能資料拴鎖器L1至LN,且源極驅動器423中移位暫存器SR1至SRN+1依序致能資料拴鎖器L1至LN+1。此時,源極驅動器421中資料拴鎖器L2至LN以及源極驅動器422中資料拴鎖器L1可由資料匯流排分別接收畫素資料DP1至DPN,然後控制源極驅動器421中第2驅動通道CH2至第N驅動通道CHN以及源極驅動器422中第1驅動通道CH1,使其分別接收對應於掃描線S2上之第1畫素單元431至第N畫素單元431之畫素資料DP1至DPN。 In the second scanning period, the shift registers SR 1 to SR N-1 in the source driver 421 sequentially enable the data latches L 2 to L N via the switching operation of the shift multiplexer 411, and The multiplexer 411 causes the shift register SR N in the source driver 421 not to be connected to the data latch L N+1 . In addition, via the switching operation of the shift multiplexer 411, the shift registers SR 1 to SR N in the source driver 422 sequentially enable the data latches L 1 to L N and are shifted in the source driver 423 The registers SR 1 to SR N+1 sequentially enable the data latches L 1 to L N+1 . At this time, the source driver 421 in the data latch device L 2 to L N, and the source driver 422 in the data latch device L 1 by data bus receives the pixel data DP 1 to DP N, and controlling the source driver 421 The second drive channel CH 2 to the Nth drive channel CH N and the first drive channel CH 1 of the source driver 422 are respectively received to correspond to the first pixel unit 431 to the Nth pixel on the scan line S 2 . The pixel data DP 1 to DP N of the unit 431.
同時地,源極驅動器422中資料拴鎖器L2至LN以及源極驅動器423中資料拴鎖器L1可由資料匯流排接收畫素資料DPN+1至DP2N,然後控制源極驅動器422中第2驅動通道CH2至第N驅動通道CHN以及源極驅動器423中第1驅動通道CH1,使其分別接收對應於掃描線S2上之第(N+1)畫素單元431至第2N畫素單元431之畫素資料DPN+1至DP2N。源極驅動器423中資料拴鎖器L2至LN+1可由資料匯流排接收畫素資料DP2N+1至DP3N,然後控制源極驅動器422中第2驅動通道CH2至第N驅動通道CHN以及源極驅動器423中第1驅 動通道CH1,使其分別接收對應於掃描線S2上之第(2N+1)畫素單元431至第3N畫素單元431之畫素資料DP2N+1至DP3N。 Simultaneously, the data latches L 2 to L N in the source driver 422 and the data latcher L 1 in the source driver 423 can receive the pixel data DP N+1 to DP 2N from the data bus, and then control the source driver. The second drive channel CH 2 to the Nth drive channel CH N of the 422 and the first drive channel CH 1 of the source driver 423 are respectively received to correspond to the (N+1)th pixel unit 431 on the scan line S 2 . The pixel data DP N+1 to DP 2N to the 2N pixel unit 431. The data latches L 2 to L N+1 in the source driver 423 can receive the pixel data DP 2N+1 to DP 3N from the data bus, and then control the second drive channel CH 2 to the Nth drive channel in the source driver 422. CH N and the first driving channel CH 1 of the source driver 423 are respectively received to receive the pixel data DP 2N corresponding to the (2N+1)th pixel unit 431 to the 3N pixel unit 431 on the scanning line S 2 . +1 to DP 3N .
由實施例圖4A及圖4B可以得知,當使用多個源極驅動器來驅動高解析度顯示面板時,第一個源極驅動器421所包括之移位暫存器SR1至SRN及最後一個源極驅動器423所包括之輔助性移位暫存器SRN+1在第一掃描期間及第二掃描期間,須藉多工器411之切換操作來致能適當的驅動通道,而其餘源極驅動器(例如:源極驅動器422)所對應之多工器411於第一掃描期間及第二掃描期間之作動可維持不變。藉此,可以簡化源極驅動器驅動畫素單元之控制。 As can be seen from the embodiment of FIG. 4A and FIG. 4B, when a plurality of source drivers are used to drive the high-resolution display panel, the shift register SR 1 to SR N and the last included in the first source driver 421 The auxiliary shift register SR N+1 included in one source driver 423 must be switched by the multiplexer 411 to enable the appropriate driving channel during the first scanning period and the second scanning period, and the remaining sources are The operation of the multiplexer 411 corresponding to the polar driver (eg, the source driver 422) during the first scanning period and the second scanning period can be maintained. Thereby, the control of the source driver driving pixel unit can be simplified.
綜合上述,上述實施例中描述源極驅動器中包括(N+1)個驅動通道,以用來驅動具有N個畫素單元的掃描線。源極驅動器中的每一個驅動通道負責輸出相同極性的驅動電壓(例如正極性或負極性)以降低源極驅動器的功率消耗。此外,點反轉也可簡單的在顯示裝置上實現以獲得高顯示品質。 In summary, the above embodiment describes that the source driver includes (N+1) drive channels for driving scan lines having N pixel units. Each of the source drivers is responsible for outputting a drive voltage of the same polarity (eg, positive or negative) to reduce the power consumption of the source driver. In addition, dot inversion can also be easily implemented on a display device to achieve high 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.
100‧‧‧液晶顯示裝置 100‧‧‧Liquid crystal display device
110、210‧‧‧閘極驅動器 110, 210‧‧ ‧ gate driver
120、220、321~322、421~423‧‧‧源極驅動器 120, 220, 321~322, 421~423‧‧‧ source drive
121‧‧‧資料線 121‧‧‧Information line
111‧‧‧掃描線 111‧‧‧ scan line
130、230、330、430‧‧‧顯示面板 130, 230, 330, 430‧‧‧ display panels
131、231、331、431‧‧‧畫素單元 131, 231, 331, 431 ‧ ‧ pixel units
200、300、400‧‧‧顯示裝置 200, 300, 400‧‧‧ display devices
221、411‧‧‧移位多工器 221, 411‧‧ ‧ shift multiplexer
222‧‧‧輸出多工器 222‧‧‧ Output multiplexer
S1~SM‧‧‧掃描線 S 1 ~S M ‧‧‧ scan line
D1~D3N+1‧‧‧資料線 D 1 ~D 3N+1 ‧‧‧ data line
CH1~CHN+1‧‧‧驅動通道 CH 1 ~CH N+1 ‧‧‧ drive channel
SR1~SRN+1‧‧‧移位暫存器 SR 1 ~SR N+1 ‧‧‧Shift register
L1~LN+1‧‧‧資料拴鎖器 L 1 ~L N+1 ‧‧‧ data lock
DP1~DP3N‧‧‧畫素資料 DP 1 ~DP 3N ‧‧‧ pixel data
VP1~VP3N‧‧‧資料驅動電壓 VP 1 ~ VP 3N ‧‧‧ data drive voltage
圖1為根據習知技術之液晶顯示裝置之示意圖。 1 is a schematic view of a liquid crystal display device according to the prior art.
圖2A與圖2B為根據本發明一實施例之顯示裝置在第一掃描期間與第二掃描期間之驅動示意圖。 2A and 2B are schematic diagrams showing driving of a display device during a first scanning period and a second scanning period according to an embodiment of the invention.
圖3A與圖3B為根據本發明一實施例之顯示裝置示意圖。 3A and 3B are schematic diagrams of a display device according to an embodiment of the invention.
圖4A與圖4B為根據本發明一實施例之顯示裝置示意圖。 4A and 4B are schematic diagrams of a display device according to an embodiment of the invention.
200‧‧‧顯示裝置 200‧‧‧ display device
210‧‧‧閘極驅動器 210‧‧‧gate driver
220‧‧‧源極驅動器 220‧‧‧Source Driver
221‧‧‧移位多工器 221‧‧‧Shift multiplexer
222‧‧‧輸出多工器 222‧‧‧ Output multiplexer
230‧‧‧顯示面板 230‧‧‧ display panel
231‧‧‧畫素單元 231‧‧‧ pixel unit
S1~SM‧‧‧掃描線 S 1 ~S M ‧‧‧ scan line
D1~DN‧‧‧資料線 D 1 ~D N ‧‧‧ data line
CH1~CHN+1‧‧‧驅動通道 CH 1 ~CH N+1 ‧‧‧ drive channel
SR1~SRN‧‧‧移位暫存器 SR 1 ~SR N ‧‧‧Shift register
L1~LN+1‧‧‧資料拴鎖器 L 1 ~L N+1 ‧‧‧ data lock
DP1~DPN‧‧‧畫素資料 DP 1 ~DP N ‧‧‧ pixel data
VP1~VPN‧‧‧資料驅動電壓 VP 1 ~ VP N ‧‧‧ data drive voltage
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5311205A (en) * | 1984-04-13 | 1994-05-10 | Sharp Kabushiki Kaisha | Color liquid-crystal display apparatus with rectilinear arrangement |
US5436747A (en) * | 1990-08-16 | 1995-07-25 | International Business Machines Corporation | Reduced flicker liquid crystal display |
US6160535A (en) * | 1997-06-16 | 2000-12-12 | Samsung Electronics Co., Ltd. | Liquid crystal display devices capable of improved dot-inversion driving and methods of operation thereof |
TW200836157A (en) * | 2007-02-23 | 2008-09-01 | Samsung Electronics Co Ltd | Display device |
CN100429691C (en) * | 2001-12-19 | 2008-10-29 | 乐金显示有限公司 | Liquid crystal display device |
TW200912841A (en) * | 2007-07-20 | 2009-03-16 | Samsung Electronics Co Ltd | Driving device, display apparatus having the same and method of driving the display apparatus |
-
2009
- 2009-03-26 TW TW98109993A patent/TWI409781B/en active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5311205A (en) * | 1984-04-13 | 1994-05-10 | Sharp Kabushiki Kaisha | Color liquid-crystal display apparatus with rectilinear arrangement |
US5436747A (en) * | 1990-08-16 | 1995-07-25 | International Business Machines Corporation | Reduced flicker liquid crystal display |
US6160535A (en) * | 1997-06-16 | 2000-12-12 | Samsung Electronics Co., Ltd. | Liquid crystal display devices capable of improved dot-inversion driving and methods of operation thereof |
CN100429691C (en) * | 2001-12-19 | 2008-10-29 | 乐金显示有限公司 | Liquid crystal display device |
TW200836157A (en) * | 2007-02-23 | 2008-09-01 | Samsung Electronics Co Ltd | Display device |
TW200912841A (en) * | 2007-07-20 | 2009-03-16 | Samsung Electronics Co Ltd | Driving device, display apparatus having the same and method of driving the display apparatus |
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