TWI413053B - Flat display and driving method thereof - Google Patents
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本發明是有關於一種平面顯示裝置及其驅動方法，且特別是有關於一種提高顯示畫面品質之平面顯示裝置及其驅動方法。The present invention relates to a flat display device and a driving method thereof, and more particularly to a flat display device and a driving method thereof for improving the quality of a display image.
請參照第1圖，其繪示傳統平面顯示裝置之一例之示意圖。平面顯示裝置100包括一面板110、一第一掃描驅動單元120、一第二掃描驅動單元130、一資料驅動單元140以及一時序控制器150。隨著面板110之尺寸越來越大，訊號線因此增長並導致驅動訊號的衰減，故需利用第一掃描驅動單元120及第二掃描驅動單元130以雙邊驅動的方式來致能面板110上之多個畫素。同樣地，資料驅動單元140之驅動能力也可能不足以推動大尺寸之面板110之另一側之畫素。Please refer to FIG. 1 , which illustrates a schematic diagram of an example of a conventional flat display device. The flat display device 100 includes a panel 110, a first scan driving unit 120, a second scan driving unit 130, a data driving unit 140, and a timing controller 150. As the size of the panel 110 is larger and larger, the signal line is increased and the driving signal is attenuated. Therefore, the first scanning driving unit 120 and the second scanning driving unit 130 are required to enable the panel 110 in a bilaterally driven manner. Multiple pixels. Similarly, the driving ability of the data driving unit 140 may not be sufficient to push the pixels on the other side of the large-sized panel 110.
請參照第2圖，其繪示傳統平面顯示裝置之另一例之示意圖。平面顯示裝置200包括一面板210、一第一掃描驅動單元220、一第二掃描驅動單元230、一第一資料驅動單元240、一第二資料驅動單元250以及一時序控制器260。平面顯示裝置200利用第一掃描驅動單元220及第二掃描驅動單元230以雙邊驅動的方式來致能面板210上之多個畫素。此外，平面顯示裝置200亦利用第一資料驅動單元240及第二資料驅動單元250以雙邊驅動的方式來驅動面板210上之多個畫素。然而，由於現在平面顯示裝置之面板之更新頻率係由60Hz提升至120Hz甚至更高的頻率，如此一來，對於大尺寸之面板210而言，面板210上之多個畫素之充電時間可能不足，導致平面顯示裝置200顯示品質不佳的畫面。Please refer to FIG. 2, which illustrates a schematic diagram of another example of a conventional flat display device. The flat display device 200 includes a panel 210, a first scan driving unit 220, a second scan driving unit 230, a first data driving unit 240, a second data driving unit 250, and a timing controller 260. The planar display device 200 enables the plurality of pixels on the panel 210 in a bilaterally driven manner by the first scan driving unit 220 and the second scan driving unit 230. In addition, the flat display device 200 also drives the plurality of pixels on the panel 210 in a bilaterally driven manner by using the first data driving unit 240 and the second data driving unit 250. However, since the update frequency of the panel of the flat display device is now increased from 60 Hz to 120 Hz or higher, the charging time of the plurality of pixels on the panel 210 may be insufficient for the large-sized panel 210. This causes the flat display device 200 to display a picture of poor quality.
請參照第3圖及第4圖，第3圖繪示傳統平面顯示裝置之再一例之示意圖，第4圖繪示平面顯示裝置300之波形圖。平面顯示裝置300包括一面板310、一第一掃描驅動單元320、一第二掃描驅動單元330、一第一資料驅動單元340、一第二資料驅動單元350、一第一時序控制器360、一第二時序控制器370、一圖框暫存器380以及一分割圖框控制器390。面板310具有多個畫素，並包括一第一區域312及一第二區域314，其中第一區域312包含資料線D1A ~DmA ，第二區域314包含資料線D1B ~DmB 。Please refer to FIG. 3 and FIG. 4 , FIG. 3 is a schematic diagram showing still another example of a conventional flat display device, and FIG. 4 is a waveform diagram of the flat display device 300 . The flat display device 300 includes a panel 310, a first scan driving unit 320, a second scan driving unit 330, a first data driving unit 340, a second data driving unit 350, a first timing controller 360, A second timing controller 370, a frame register 380, and a split frame controller 390. The panel 310 has a plurality of pixels and includes a first area 312 and a second area 314. The first area 312 includes data lines D 1A to D mA , and the second area 314 includes data lines D 1B to D mB .
分割圖框控制器390接收輸入訊號VD ，此輸入訊號VD 包括多個畫素資料及多個空白資料。茲以解析度為1920×1080之畫面為例做說明。請配合參照第4圖，分割圖框控制器390於第一圖框時間P1接收輸入訊號VD ，輸入訊號VD 包括對應至第n個畫面Fn之多個畫素資料(1~1080)及多個空白資料，此些空白資料係對應至一垂直遮沒期間(vertical blanking interval)410。垂直遮沒期間410實質上用以區分第n個畫面Fn及第(n+1)個畫面F(n+1)。分割圖框控制器390對應於第一區域312及第二區域314將此些畫素資料及空白資料分群並儲存於圖框暫存器380中。The split frame controller 390 receives the input signal V D , and the input signal V D includes a plurality of pixel data and a plurality of blank data. For example, a screen with a resolution of 1920×1080 is taken as an example. Referring to FIG. 4, the split frame controller 390 receives the input signal V D at the first frame time P1, and the input signal V D includes a plurality of pixel data (1 to 1080) corresponding to the nth picture Fn and A plurality of blank data corresponding to a vertical blanking interval 410. The vertical blanking period 410 is substantially used to distinguish between the nth picture Fn and the (n+1)th picture F(n+1). The segmentation frame controller 390 groups and stores the pixel data and the blank data in the frame register 380 corresponding to the first region 312 and the second region 314.
於第二圖框時間P2，分割圖框控制器390從圖框暫存器380讀取分群後之畫素資料及空白資料，並分別傳送至第一時序控制器360及第二時序控制器370。第一時序控制器360依據第一群畫素資料(1~540)及對應至垂直遮沒期間420之多個空白資料控制第一資料驅動單元340，以依序驅動連接至資料線D1A ~DmA 之畫素。同時，第二時序控制器370依據第二群畫素資料(541~1080)及對應至垂直遮沒期間430之多個空白資料控制第二資料驅動單元350，以依序驅動連接至資料線D1B ~DmB 之畫素。如此一來，每一個畫素的充電時間可以變為兩倍，解決了畫素充電不足的問題。At the second frame time P2, the segmentation frame controller 390 reads the grouped pixel data and the blank data from the frame register 380 and transmits them to the first timing controller 360 and the second timing controller, respectively. 370. The first timing controller 360 controls the first data driving unit 340 according to the first group of pixel data (1~540) and the plurality of blank data corresponding to the vertical blanking period 420, and sequentially drives and connects to the data line D 1A. ~D mA pixel. At the same time, the second timing controller 370 controls the second data driving unit 350 according to the second group of pixel data (541 to 1080) and the plurality of blank data corresponding to the vertical blanking period 430 to sequentially drive to the data line D. 1B ~ D mB pixels. In this way, the charging time of each pixel can be doubled, which solves the problem of insufficient charging of pixels.
然而，於平面顯示裝置300中，對應於畫素資料541之畫素應於對應於畫素資料540之畫素之後被驅動。但對應於畫素資料541之畫素實質上卻與對應於畫素資料1之畫素同時被驅動。如此一來，當顯示畫面為動態畫面時，顯示畫素於第一區域312及第二區域314之交界處會產生錯位的現象，導致平面顯示裝置300顯示品質不佳的畫面。However, in the flat display device 300, the pixels corresponding to the pixel data 541 should be driven after the pixels corresponding to the pixel data 540. However, the pixel corresponding to the pixel data 541 is substantially driven simultaneously with the pixel corresponding to the pixel data 1. In this way, when the display screen is a dynamic screen, the display pixel is misaligned at the boundary between the first region 312 and the second region 314, and the flat display device 300 displays a poor quality screen.
本發明係有關於一種平面顯示裝置及其驅動方法，利用省略垂直遮沒期間之時序，並以上下循序掃描的方式，使得平面顯示裝置具有均勻的亮度，並得以顯示正確的畫面。The present invention relates to a flat display device and a driving method thereof, which use a method of omitting a timing of a vertical blanking period and sequentially scanning the above, so that the flat display device has uniform brightness and can display a correct picture.
根據本發明之第一方面，提出一種平面顯示裝置，包括一面板、一第一掃描驅動單元及一第二掃描驅動單元、一第一資料驅動單元及一第二資料驅動單元、一時序控制單元、一圖框暫存器以及一分割圖框控制器。面板具有多列畫素，且面板包括一第一區域及一第二區域。第一掃描驅動單元及一第二掃描驅動單元，分別位於面板之兩側，用以致能此些列畫素。第一資料驅動單元及第二資料驅動單元分別耦接至第一區域及第二區域。分割圖框控制器用以接收一輸入訊號，輸入訊號包括多個畫素資料及多個空白資料，此些空白資料對應至一垂直遮沒期間。分割圖框控制器將此些畫素資料分割為一第一群畫素資料及一第二群畫素資料，並儲存至圖框暫存器。其中，分割圖框控制器從圖框暫存器讀取第一群畫素資料並輸出至時序控制單元，時序控制單元依據第一群畫素資料控制第一資料驅動單元依序驅動第一區域之此些列畫素。其中，於讀取第一群畫素資料後，分割圖框控制器從圖框暫存器讀取第二群畫素資料並輸出至時序控制單元，時序控制單元依據第二群畫素資料控制第二資料驅動單元依序驅動第二區域之此些列畫素。According to a first aspect of the present invention, a flat display device includes a panel, a first scan driving unit and a second scan driving unit, a first data driving unit and a second data driving unit, and a timing control unit. , a frame register and a split frame controller. The panel has a plurality of columns of pixels, and the panel includes a first area and a second area. The first scan driving unit and the second scan driving unit are respectively located on two sides of the panel to enable the array of pixels. The first data driving unit and the second data driving unit are respectively coupled to the first area and the second area. The split frame controller is configured to receive an input signal, where the input signal includes a plurality of pixel data and a plurality of blank data, and the blank data corresponds to a vertical blanking period. The segmentation frame controller divides the pixel data into a first group of pixel data and a second group of pixel data, and stores the data into a frame register. The split frame controller reads the first group of pixel data from the frame register and outputs the data to the timing control unit, and the timing control unit controls the first data driving unit to sequentially drive the first region according to the first group of pixel data. These columns of pixels. After reading the first group of pixel data, the segmentation frame controller reads the second group of pixel data from the frame register and outputs the data to the timing control unit, and the timing control unit controls according to the second group of pixel data. The second data driving unit sequentially drives the column pixels of the second region.
根據本發明之第二方面，提出一種平面顯示裝置驅動方法，平面顯示裝置包括一面板、一第一掃描驅動單元及一第二掃描驅動單元、一第一資料驅動單元及一第二資料驅動單元、一時序控制單元、一圖框暫存器以及一分割圖框控制器。面板具有多列畫素，且面板包括一第一區域及一第二區域。第一掃描驅動單元及第二掃描驅動單元分別位於面板之兩側，用以致能此些列畫素。第一資料驅動單元及第二資料驅動單元分別耦接至第一區域及第二區域。平面顯示裝置驅動方法包括下列步驟。分割圖框控制器接收一輸入訊號，輸入訊號包括多個畫素資料及多個空白資料，此些空白資料對應至一垂直遮沒期間。分割圖框控制器將此些畫素資料分割為一第一群畫素資料及一第二群畫素資料，並儲存至圖框暫存器。分割圖框控制器從圖框暫存器讀取第一群畫素資料並輸出至時序控制單元，時序控制單元依據第一群畫素資料控制第一資料驅動單元依序驅動第一區域之此些列畫素。於讀取第一群畫素資料後，分割圖框控制器從圖框暫存器讀取第二群畫素資料並輸出至時序控制單元，時序控制單元依據第二群畫素資料控制第二資料驅動單元依序驅動第二區域之此些列畫素。According to a second aspect of the present invention, a method for driving a flat display device is provided. The flat display device includes a panel, a first scan driving unit and a second scan driving unit, a first data driving unit and a second data driving unit. a timing control unit, a frame register, and a split frame controller. The panel has a plurality of columns of pixels, and the panel includes a first area and a second area. The first scan driving unit and the second scan driving unit are respectively located on two sides of the panel to enable the columns of pixels. The first data driving unit and the second data driving unit are respectively coupled to the first area and the second area. The flat display device driving method includes the following steps. The split frame controller receives an input signal, and the input signal includes a plurality of pixel data and a plurality of blank data, and the blank data corresponds to a vertical blanking period. The segmentation frame controller divides the pixel data into a first group of pixel data and a second group of pixel data, and stores the data into a frame register. The split frame controller reads the first group of pixel data from the frame register and outputs the data to the timing control unit, and the timing control unit controls the first data driving unit to sequentially drive the first region according to the first group of pixel data. Some columns of pixels. After reading the first group of pixel data, the segmentation frame controller reads the second group of pixel data from the frame register and outputs the data to the timing control unit, and the timing control unit controls the second according to the second group of pixel data. The data driving unit sequentially drives the column pixels of the second region.
為讓本發明之上述內容能更明顯易懂，下文特舉一較佳實施例，並配合所附圖式，作詳細說明如下：In order to make the above-mentioned contents of the present invention more comprehensible, a preferred embodiment will be described below, and in conjunction with the drawings, a detailed description is as follows:
本發明係提供一種平面顯示裝置及其驅動方法，利用省略垂直遮沒期間(vertical blanking interval)之時序，並以上下循序掃描的方式，使得平面顯示裝置具有均勻的亮度，並得以顯示正確的畫面。The present invention provides a flat display device and a driving method thereof, which can make a flat display device have uniform brightness and display a correct picture by omitting a timing of a vertical blanking interval and sequentially scanning the above. .
請參照第5圖及第6圖，第5圖繪示依照本發明較佳實施例之平面顯示裝置之示意圖，第6圖繪示依照本發明較佳實施例之平面顯示裝置之波形圖。平面顯示裝置500包括一面板510、一第一掃描驅動單元520、一第二掃描驅動單元530、一第一資料驅動單元540、一第二資料驅動單元550、一時序控制單元560、一圖框暫存器570以及一分割圖框控制器(split frame controller)580。面板510具有多列畫素(未繪示於圖)，且面板510包括一第一區域512及一第二區域514，其中第一區域512包含資料線D1A ~D1920A ，第二區域514包含資料線D1B ~D1920B 。5 and FIG. 6 , FIG. 5 is a schematic diagram of a flat display device according to a preferred embodiment of the present invention, and FIG. 6 is a waveform diagram of a flat display device according to a preferred embodiment of the present invention. The flat display device 500 includes a panel 510, a first scan driving unit 520, a second scan driving unit 530, a first data driving unit 540, a second data driving unit 550, a timing control unit 560, and a frame. The register 570 and a split frame controller 580. The panel 510 has a plurality of columns of pixels (not shown), and the panel 510 includes a first region 512 and a second region 514, wherein the first region 512 includes data lines D 1A to D 1920A , and the second region 514 includes Data line D 1B ~ D 1920B .
第一掃描驅動單元520及第二掃描驅動單元530分別位於面板510之兩側，用以致能面板510上之多列畫素。第一資料驅動單元540及第二資料驅動單元550分別耦接至第一區域512內的資料線D1A ~D1920A 及第二區域514內的資料線D1B ~D1920B 。時序控制單元560耦接至第一掃描驅動單元520、第二掃描驅動單元530、第一資料驅動單元540以及第二資料驅動單元550。分割圖框控制器580接收輸入訊號VD ，此輸入訊號VD 包括多個畫素資料(pixel data)及多個空白資料(blanking data)。各畫素將根據對應的畫素資料改變光線的穿透率來完成顯示的畫面，且多個畫素資料間穿插的空白資料用以區分各圖框所對應的畫素資料。其中空白資料可以是由低準位或接地訊號所構成，並且無法據此驅動平面顯示裝置500上的畫素。The first scan driving unit 520 and the second scan driving unit 530 are respectively located at two sides of the panel 510 to enable a plurality of columns of pixels on the panel 510. First data driving unit 540 and the second data driving unit 550 are respectively coupled to the data lines D in the first region 512 1A ~ D 1920A and the data line D in the second region 514 1B ~ D 1920B. The timing control unit 560 is coupled to the first scan driving unit 520, the second scan driving unit 530, the first data driving unit 540, and the second data driving unit 550. The segmentation frame controller 580 receives the input signal V D , and the input signal V D includes a plurality of pixel data and a plurality of blanking data. Each pixel will change the transmittance of the light according to the corresponding pixel data to complete the displayed picture, and the blank data interspersed among the plurality of pixel data is used to distinguish the pixel data corresponding to each frame. The blank data may be composed of a low level or a ground signal, and the pixels on the flat display device 500 cannot be driven accordingly.
茲以解析度為1920×1080之畫面為例做說明。請配合參照第6圖，分割圖框控制器580於一第一圖框時間P1接收輸入訊號VD ，輸入訊號VD 包括對應至第n個畫面Fn之多個畫素資料(1~1080)及多個空白資料，此些空白資料係對應至一垂直遮沒期間610。分割圖框控制器580於一第二圖框時間P2接收輸入訊號VD ，輸入訊號VD 包括對應至第(n+1)個畫面F(n+1)之多個畫素資料(1~1080)及多個空白資料，此些空白資料係對應至一垂直遮沒期間620。分割圖框控制器580於一第三圖框時間P3接收輸入訊號VD ，輸入訊號VD 包括對應至第(n+2)個畫面F(n+2)之多個畫素資料(1~1080)及多個空白資料，此些空白資料係對應至一垂直遮沒期間630。For example, a screen with a resolution of 1920×1080 is taken as an example. Referring to FIG. 6, the split frame controller 580 receives the input signal V D at a first frame time P1, and the input signal V D includes a plurality of pixel data corresponding to the nth picture Fn (1~1080). And a plurality of blank data corresponding to a vertical blanking period 610. The split frame controller 580 receives the input signal V D at a second frame time P2, and the input signal V D includes a plurality of pixel data corresponding to the (n+1)th picture F(n+1) (1~ 1080) and a plurality of blank data corresponding to a vertical blanking period 620. The split frame controller 580 receives the input signal V D at a third frame time P3, and the input signal V D includes a plurality of pixel data corresponding to the (n+2)th picture F(n+2) (1~ 1080) and a plurality of blank data corresponding to a vertical blanking period 630.
垂直遮沒期間610~630實質上用以區分第n個畫面Fn~第(n+3)個畫面F(n+3)。分割圖框控制器580將對應至每一個畫面之畫素資料(1~1080)分割為一第一群畫素資料及一第二群畫素資料，並儲存至圖框暫存器570中。其中，第一群畫素資料係對應至第一區域512，第二群畫素資料係對應至第二區域514。其中，圖框暫存器570儲存至少對應至二個畫面之畫素資料量。The vertical blanking periods 610 to 630 are substantially used to distinguish the nth picture Fn~the (n+3)th picture F(n+3). The segmentation frame controller 580 divides the pixel data (1 to 1080) corresponding to each frame into a first group of pixel data and a second group of pixel data, and stores them in the frame register 570. The first group of pixel data corresponds to the first region 512, and the second group of pixel data corresponds to the second region 514. The frame register 570 stores at least the amount of pixel data corresponding to the two pictures.
於第一顯示圖框時間T1，分割圖框控制器580從圖框暫存器570讀取對應至第(n-1)畫面F(n-1)之第一群畫素資料(1~540)及對應至第(n-2)畫面F(n-2)之第二群畫素資料(541~1080)，並輸出至時序控制單元560。時序控制單元560依據對應至第(n-1)畫面F(n-1)之第一群畫素資料(1~540)控制第一資料驅動單元540依序驅動第一區域512之多列畫素，且時序控制單元560依據對應至第(n-2)畫面F(n-2)之第二群畫素資料(541~1080)控制第二資料驅動單元550依序驅動第二區域514之多列畫素。At the first display frame time T1, the segmentation frame controller 580 reads the first group of pixel data corresponding to the (n-1)th picture F(n-1) from the frame register 570 (1 to 540). And the second group of pixel data (541 to 1080) corresponding to the (n-2)th picture F(n-2), and output to the timing control unit 560. The timing control unit 560 controls the first data driving unit 540 to sequentially drive the plurality of columns of the first region 512 according to the first group of pixel data (1 to 540) corresponding to the (n-1)th screen F(n-1). And the timing control unit 560 controls the second data driving unit 550 to sequentially drive the second region 514 according to the second group of pixel data (541 to 1080) corresponding to the (n-2)th screen F(n-2). Multi-column pixels.
於第二顯示圖框時間T2，分割圖框控制器580從圖框暫存器570讀取對應至第n畫面Fn之第一群畫素資料(1~540)及對應至第(n-1)畫面F(n-1)之第二群畫素資料(541~1080)，並輸出至時序控制單元560。時序控制單元560依據對應至第n畫面Fn之第一群畫素資料(1~540)控制第一資料驅動單元540依序驅動第一區域512之多列畫素，且時序控制單元560依據對應至第(n-1)畫面F(n-1)之第二群畫素資料(541~1080)控制第二資料驅動單元550依序驅動第二區域514之多列畫素。At the second display frame time T2, the segmentation frame controller 580 reads the first group of pixel data (1 to 540) corresponding to the nth picture Fn and corresponds to the (n-1) from the frame register 570. The second group of pixel data (541 to 1080) of the picture F(n-1) is output to the timing control unit 560. The timing control unit 560 controls the first data driving unit 540 to sequentially drive the plurality of columns of pixels of the first region 512 according to the first group of pixel data (1 to 540) corresponding to the nth picture Fn, and the timing control unit 560 according to the corresponding The second group of pixel data (541 to 1080) to the (n-1)th screen F(n-1) controls the second data driving unit 550 to sequentially drive the plurality of columns of pixels of the second region 514.
於第三顯示圖框時間T3，分割圖框控制器580從圖框暫存器570讀取對應至第(n+1)畫面F(n+1)之第一群畫素資料(1~540)及對應至第n畫面Fn之第二群畫素資料(541~1080)，並輸出至時序控制單元560。時序控制單元560依據對應至第(n+1)畫面F(n+1)之第一群畫素資料(1~540)控制第一資料驅動單元540依序驅動第一區域512之多列畫素，且時序控制單元560依據對應至第n畫面Fn之第二群畫素資料(541~1080)控制第二資料驅動單元550依序驅動第二區域514之多列畫素。At the third display frame time T3, the segmentation frame controller 580 reads the first group of pixel data corresponding to the (n+1)th picture F(n+1) from the frame register 570 (1~540). And the second group of pixel data (541 to 1080) corresponding to the nth picture Fn, and output to the timing control unit 560. The timing control unit 560 controls the first data driving unit 540 to sequentially drive the plurality of columns of the first region 512 according to the first group of pixel data (1 to 540) corresponding to the (n+1)th screen F(n+1). And the timing control unit 560 controls the second data driving unit 550 to sequentially drive the plurality of columns of pixels of the second region 514 according to the second group of pixel data (541 to 1080) corresponding to the nth picture Fn.
其中，對於對應至第n畫面Fn之畫素資料(1~1080)而言，時序控制單元560係於第二顯示圖框時間T2依據第一群畫素資料(1~540)控制第一資料驅動單元540依序驅動第一區域512之多列畫素，並於第三顯示圖框時間T3依據第二群畫素資料(541~1080)控制第二資料驅動單元550依序驅動第二區域514之多列畫素。For the pixel data (1~1080) corresponding to the nth picture Fn, the timing control unit 560 controls the first data according to the first group of pixel data (1~540) at the second display frame time T2. The driving unit 540 sequentially drives the plurality of columns of pixels of the first region 512, and controls the second data driving unit 550 to sequentially drive the second region according to the second group of pixel data (541~1080) at the third display frame time T3. More than 514 columns of pixels.
此外，時序控制單元560更可以包括一第一時序控制器及一第二時序控制器(未繪示於圖)。其中，係利用第一時序控制器依據對應於一畫面之第一群畫素資料控制第一資料驅動單元540依序驅動第一區域512之多列畫素，並利用第二時序控制器依據對應於相同畫面之第二群畫素資料控制第二資料驅動單元550依序驅動第二區域514之多列畫素。在上述說明中，各顯示圖框時間(T1~T3)的長度和各圖框時間(P1~P3)的長度可以相同也可以不同。惟為了方便說明，本說明書係以相同長度為例。In addition, the timing control unit 560 further includes a first timing controller and a second timing controller (not shown). The first timing controller controls the first data driving unit 540 to sequentially drive the plurality of columns of the first region 512 according to the first group of pixel data corresponding to a picture, and uses the second timing controller according to the second timing controller. The second group of pixel data corresponding to the same picture controls the second data driving unit 550 to sequentially drive the plurality of columns of pixels of the second area 514. In the above description, the length of each display frame time (T1 to T3) and the length of each frame time (P1 to P3) may be the same or different. For the convenience of description, this specification uses the same length as an example.
由第6圖可以觀察得知，本發明上述實施例所揭露之平面顯示裝置500中，每一個畫素的充電時間和傳統平面顯示裝置比較可以變為兩倍，故可以解決傳統畫素充電不足的問題。此外，對於第n畫面Fn而言，其畫素資料係於第二顯示圖框時間T2及第三顯示圖框時間T3中，相對應於第一區域512及第二區域514由上到下循序掃描。如此一來，當顯示畫面為動態畫面時，顯示畫素於第一區域512及第二區域514之交界處不會產生錯位的現象，平面顯示裝置500可以顯示正確的畫面。It can be seen from FIG. 6 that in the flat display device 500 disclosed in the above embodiment of the present invention, the charging time of each pixel can be doubled compared with the conventional flat display device, so that the conventional pixel charging can be solved. The problem. In addition, for the nth picture Fn, the pixel data is in the second display frame time T2 and the third display frame time T3, corresponding to the first area 512 and the second area 514 from top to bottom. scanning. In this way, when the display screen is a dynamic screen, the display pixel does not cause a misalignment at the boundary between the first region 512 and the second region 514, and the flat display device 500 can display the correct screen.
此外，由於時序控制單元560於依據第一群畫素資料及第二群畫素資料分別控制第一資料驅動單元540及第二資料驅動單元560時，實質上係省略垂直遮沒期間之時序。因此，以對應至第n畫面Fn之畫素資料而言，驅動各列畫素的週期相同，即當顯示完對應至第540列之畫素資料後，隨即顯示對應至第541列之畫素資料。故對於靜態畫面而言，可以使得顯示畫素於第一區域512及第二區域514之交界處不會產生亮度差異的現象。特別的是，在相同的顯示圖框時間中(例如是T2)，第一區域512僅根據第一群畫素資料(1~540)顯示，且第二區域514僅根據第二群畫素資料(541~1080)顯示。In addition, when the timing control unit 560 controls the first data driving unit 540 and the second data driving unit 560 according to the first group of pixel data and the second group of pixel data, the timing of the vertical blanking period is substantially omitted. Therefore, in the pixel data corresponding to the nth picture Fn, the period of driving each column of pixels is the same, that is, when the pixel data corresponding to the 540th column is displayed, the pixel corresponding to the 541th column is displayed. data. Therefore, for a static picture, the phenomenon that the display pixel does not cause a difference in luminance at the boundary between the first area 512 and the second area 514 can be caused. In particular, in the same display frame time (for example, T2), the first region 512 is displayed only according to the first group of pixel data (1 to 540), and the second region 514 is based only on the second group of pixel data. (541~1080) display.
請參照第7A圖，其繪示平面顯示裝置不省略垂直遮沒期間之一例之時序圖。第一區域512於第一顯示圖框時間T1顯示對應於第(n-2)畫面F(n-2)之畫素資料後，於第二顯示圖框時間T2經過垂直遮沒期間(VBI)710之後顯示對應於第(n-1)畫面F(n-1)之畫素資料。第二區域514於圖框時間P1顯示對應於第(n-3)畫面F(n-3)之畫素資料後，經過垂直遮沒期間(VBI)720，才於圖框時間P2顯示對應於第(n-2)畫面F(n-2)之畫素資料。如此一來，於時間t1內，平面顯示裝置500會產生畫面亮度不均的現象。亦即，於第一區域512及第二區域514之交界處之亮度會產生差異。本發明較佳實施例所揭露之平面顯示裝置500係省略垂直遮沒期間之時序，如第7B圖所示，由於省略垂直遮沒期間，第一區域512的第一群畫素資料及第二區域514的第二群畫素資料是連續地顯示，不會產生第一區域512及第二區域514之交界處的亮度差異，因此解決了上述之問題。Please refer to FIG. 7A, which illustrates a timing diagram of an example in which the flat display device does not omit the vertical blanking period. The first area 512 displays the pixel data corresponding to the (n-2)th screen F(n-2) after the first display frame time T1, and passes the vertical blanking period (VBI) after the second display frame time T2. The pixel data corresponding to the (n-1)th picture F(n-1) is displayed after 710. The second area 514 displays the pixel data corresponding to the (n-3)th picture F(n-3) at the frame time P1, and after the vertical blanking period (VBI) 720, the frame time P2 is displayed corresponding to the frame time P2. Pixel data of the (n-2)th picture F(n-2). As a result, in the time t1, the flat display device 500 generates a phenomenon in which the brightness of the screen is uneven. That is, the brightness at the junction of the first region 512 and the second region 514 may vary. The flat display device 500 disclosed in the preferred embodiment of the present invention omits the timing of the vertical blanking period. As shown in FIG. 7B, the first group of pixel data and the second region of the first region 512 are omitted because the vertical blanking period is omitted. The second group of pixel data of the region 514 is continuously displayed, and the difference in luminance at the boundary between the first region 512 and the second region 514 is not generated, thus solving the above problem.
此外，現今之大尺寸面板通常會採用低色偏(low color shift)的技術以提升畫面顯示品質。請參照第8A圖，其繪示採用傳統低色偏技術之畫素之一例之電路圖。畫素800被區分為一第一子畫素810及一第二子畫素820。首先，當掃描線Gn被致能時，電晶體M1及電晶體M2導通，液晶電容Cl1 及液晶電容Cl2 分別被充電。然後，掃描線Gn被非致能及掃描線G(n+1)被致能時，於上一個圖框時間儲存於儲存電容Cst之電荷會與液晶電容Cl2 所儲存之電荷重新分配，而使得液晶電容Cl2 之電位不同於液晶電容Cl1 之電位。故第一子畫素810及第二子畫素820對應於相同的畫素資料，係分別顯示不同的亮度。In addition, today's large-size panels often use low color shift technology to improve picture quality. Please refer to FIG. 8A, which shows a circuit diagram of an example of a pixel using a conventional low color shift technique. The pixel 800 is divided into a first sub-pixel 810 and a second sub-pixel 820. First, when the scanning line Gn is enabled, transistor M1 and the transistor M2 is turned on, the liquid crystal capacitor and the liquid crystal capacitor Cl 1 Cl 2 are charged. Then, the scanning line Gn is non-enabled and the scanning line G (n + 1), when enabled, on one frame time stored in the storage capacitor Cst of the charges may redistribute charge two storage of the liquid crystal capacitor Cl, and The potential of the liquid crystal capacitor Cl 2 is made different from the potential of the liquid crystal capacitor Cl 1 . Therefore, the first sub-pixel 810 and the second sub-pixel 820 correspond to the same pixel data, and respectively display different brightnesses.
然而，若平面顯示裝置500採用如第4圖所示之時序，則因為掃描線G(n+1)會先於掃描線Gn被致能，因此無法達到藉由電荷分配的方式讓第一子畫素810和第二子畫素820各自顯示特定的亮度，故於第一區域512及第二區域514之交界處之畫素無法採用低色偏技術。請參照第8B圖，其繪示依照本發明較佳實施例採用低色偏技術之畫素之一例之電路圖。本發明較佳實施例所揭露之平面顯示裝置500係採用如第6圖所示之時序，因為省略了垂直遮沒時間，位在第一區域812的掃描線Gn和位在第二區域814的掃描線G(n+1)被依序地開啟，故可解決上述之問題，使得平面顯示裝置500於靜態畫面時，中間線亮度不會產生差異，而且可以應用上述低色偏的架構。However, if the plane display device 500 adopts the timing as shown in FIG. 4, since the scan line G(n+1) is enabled before the scan line Gn, the first sub-portion cannot be achieved by charge distribution. The pixels 810 and the second sub-pixels 820 each display a specific brightness, so the pixels at the boundary between the first region 512 and the second region 514 cannot adopt a low color shift technique. Please refer to FIG. 8B, which is a circuit diagram showing an example of a pixel using a low color shift technique according to a preferred embodiment of the present invention. The flat display device 500 disclosed in the preferred embodiment of the present invention adopts the timing as shown in FIG. 6, because the vertical blanking time is omitted, the scanning line Gn in the first region 812 and the second region 814 are located. The scan line G(n+1) is sequentially turned on, so that the above problem can be solved, so that the brightness of the intermediate line does not vary when the flat display device 500 is in a static picture, and the above-described low color shift architecture can be applied.
本發明亦揭露一種平面顯示裝置驅動方法，平面顯示裝置包括一面板、一第一掃描驅動單元及一第二掃描驅動單元、一第一資料驅動單元及一第二資料驅動單元、一時序控制單元、一圖框暫存器以及一分割圖框控制器。面板具有多列畫素，且面板包括一第一區域及一第二區域。第一掃描驅動單元及第二掃描驅動單元分別位於面板之兩側，用以致能此些列畫素。第一資料驅動單元及第二資料驅動單元分別耦接至第一區域及第二區域。平面顯示裝置驅動方法包括下列步驟。分割圖框控制器接收一輸入訊號，輸入訊號包括多個畫素資料及多個空白資料，此些空白資料對應至一垂直遮沒期間。分割圖框控制器將此些畫素資料分割為一第一群畫素資料及一第二群畫素資料，並儲存至圖框暫存器。分割圖框控制器從圖框暫存器讀取第一群畫素資料並輸出至時序控制單元，時序控制單元依據第一群畫素資料控制第一資料驅動單元依序驅動第一區域之此些列畫素。於讀取第一群畫素資料後，分割圖框控制器從圖框暫存器讀取第二群畫素資料並輸出至時序控制單元，時序控制單元依據第二群畫素資料控制第二資料驅動單元依序驅動第二區域之此些列畫素。The present invention also discloses a method for driving a flat display device. The flat display device includes a panel, a first scan driving unit and a second scan driving unit, a first data driving unit and a second data driving unit, and a timing control unit. , a frame register and a split frame controller. The panel has a plurality of columns of pixels, and the panel includes a first area and a second area. The first scan driving unit and the second scan driving unit are respectively located on two sides of the panel to enable the columns of pixels. The first data driving unit and the second data driving unit are respectively coupled to the first area and the second area. The flat display device driving method includes the following steps. The split frame controller receives an input signal, and the input signal includes a plurality of pixel data and a plurality of blank data, and the blank data corresponds to a vertical blanking period. The segmentation frame controller divides the pixel data into a first group of pixel data and a second group of pixel data, and stores the data into a frame register. The split frame controller reads the first group of pixel data from the frame register and outputs the data to the timing control unit, and the timing control unit controls the first data driving unit to sequentially drive the first region according to the first group of pixel data. Some columns of pixels. After reading the first group of pixel data, the segmentation frame controller reads the second group of pixel data from the frame register and outputs the data to the timing control unit, and the timing control unit controls the second according to the second group of pixel data. The data driving unit sequentially drives the column pixels of the second region.
上述平面顯示裝置驅動方法之原理係已詳述於平面顯示裝置500中，故於此不再重述。The principle of the above-described planar display device driving method has been described in detail in the flat display device 500, and thus will not be described again.
本發明上述實施例所揭露之平面顯示裝置及其驅動方法，具有多項優點，以下僅列舉部分優點說明如下：The flat display device and the driving method thereof disclosed in the above embodiments of the present invention have a plurality of advantages, and only some of the advantages described below are as follows:
本發明之平面顯示裝置及其驅動方法，利用省略垂直遮沒期間之時序，並以上下循序掃描的方式，使得平面顯示裝置可以解決靜態畫面中有亮度差異的區域，此外亦使得平面顯示裝置得以顯示正確的動態畫面。另外，更可結合低色偏的技術以進一步地提升畫面顯示品質。The flat display device and the driving method thereof of the present invention use a method of omitting the timing of the vertical blanking period and sequentially scanning the above, so that the flat display device can solve the region having the brightness difference in the static image, and the flat display device can also be Display the correct dynamic picture. In addition, a low color shifting technique can be combined to further improve the picture display quality.
綜上所述，雖然本發明已以一較佳實施例揭露如上，然其並非用以限定本發明。本發明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，當可作各種之更動與潤飾。因此，本發明之保護範圍當視後附之申請專利範圍所界定者為準。In view of the above, the present invention has been disclosed in a preferred embodiment, and is not intended to limit the present invention. A person skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.
100、200、300、500．．．平面顯示裝置100, 200, 300, 500. . . Flat display device
110、210、310、510．．．面板110, 210, 310, 510. . . panel
120、220、320、520．．．第一掃描驅動單元120, 220, 320, 520. . . First scan driving unit
130、230、330、530．．．第二掃描驅動單元130, 230, 330, 530. . . Second scan driving unit
140．．．資料驅動單元140. . . Data drive unit
150、260．．．時序控制器150, 260. . . Timing controller
240、340、540．．．第一資料驅動單元240, 340, 540. . . First data drive unit
250、350、550．．．第二資料驅動單元250, 350, 550. . . Second data drive unit
312、512、812．．．第一區域312, 512, 812. . . First area
314、514、814．．．第二區域314, 514, 814. . . Second area
360．．．第一時序控制器360. . . First timing controller
370．．．第二時序控制器370. . . Second timing controller
380、570．．．圖框暫存器380, 570. . . Frame register
390、580．．．分割圖框控制器390, 580. . . Split frame controller
410、420、430、610、620、630、710、720．．．垂直遮沒期間410, 420, 430, 610, 620, 630, 710, 720. . . Vertical occlusion period
560．．．時序控制單元560. . . Timing control unit
800．．．畫素800. . . Pixel
810．．．第一子畫素810. . . First subpixel
820．．．第二子畫素820. . . Second subpixel
第1圖繪示傳統平面顯示裝置之一例之示意圖。FIG. 1 is a schematic view showing an example of a conventional flat display device.
第2圖繪示傳統平面顯示裝置之另一例之示意圖。FIG. 2 is a schematic view showing another example of a conventional flat display device.
第3圖繪示傳統平面顯示裝置之再一例之示意圖。FIG. 3 is a schematic view showing still another example of a conventional flat display device.
第4圖繪示平面顯示裝置300之波形圖。FIG. 4 is a waveform diagram of the flat display device 300.
第5圖繪示依照本發明較佳實施例之平面顯示裝置之示意圖。FIG. 5 is a schematic diagram of a flat display device in accordance with a preferred embodiment of the present invention.
第6圖繪示依照本發明較佳實施例之平面顯示裝置之波形圖。FIG. 6 is a waveform diagram of a flat display device in accordance with a preferred embodiment of the present invention.
第7A圖繪示平面顯示裝置不省略垂直遮沒期間之一例之時序圖。FIG. 7A is a timing chart showing an example in which the flat display device does not omit the vertical blanking period.
第7B圖繪示平面顯示裝置省略垂直遮沒期間之一例之時序圖。FIG. 7B is a timing chart showing an example in which the flat display device omits the vertical blanking period.
第8A圖繪示採用傳統低色偏技術之畫素之一例之電路圖。Fig. 8A is a circuit diagram showing an example of a pixel using a conventional low color shift technique.
第8B圖繪示依照本發明較佳實施例採用低色偏技術之畫素之一例之電路圖。FIG. 8B is a circuit diagram showing an example of a pixel using a low color shift technique in accordance with a preferred embodiment of the present invention.
500．．．平面顯示裝置500. . . Flat display device
510．．．面板510. . . panel
512．．．第一區域512. . . First area
514．．．第二區域514. . . Second area
520．．．第一掃描驅動單元520. . . First scan driving unit
530．．．第二掃描驅動單元530. . . Second scan driving unit
540．．．第一資料驅動單元540. . . First data drive unit
550．．．第二資料驅動單元550. . . Second data drive unit
560．．．時序控制單元560. . . Timing control unit
570．．．圖框暫存器570. . . Frame register
580．．．分割圖框控制器580. . . Split frame controller
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| TW98134372A TWI413053B (en) | 2009-10-09 | 2009-10-09 | Flat display and driving method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW98134372A TWI413053B (en) | 2009-10-09 | 2009-10-09 | Flat display and driving method thereof |
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| TW201113847A TW201113847A (en) | 2011-04-16 |
| TWI413053B true TWI413053B (en) | 2013-10-21 |
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| TW98134372A TWI413053B (en) | 2009-10-09 | 2009-10-09 | Flat display and driving method thereof |
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| CN107665658A (en) * | 2016-07-29 | 2018-02-06 | 乐金显示有限公司 | Time schedule controller, display device and its driving method using the time schedule controller |
| CN108062931A (en) * | 2016-11-08 | 2018-05-22 | 联咏科技股份有限公司 | Image processing apparatus, display panel and display device |
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| CN111326125A (en) * | 2020-04-07 | 2020-06-23 | Tcl华星光电技术有限公司 | TCON time sequence control signal control method and driving circuit |
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| US20140218274A1 (en) * | 2013-02-07 | 2014-08-07 | Innolux Corporation | Display panel |
| CN110262147B (en) | 2018-08-10 | 2021-10-29 | 友达光电股份有限公司 | Semiconductor substrate and driving method |
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