TWI430252B - Driving method and driving device of three-dimensional display - Google Patents
Driving method and driving device of three-dimensional display Download PDFInfo
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Description
本發明係有關於一種顯示器的驅動方法及其驅動裝置，特別是有關於一種三維顯示器的驅動方法及其驅動裝置。The present invention relates to a driving method of a display and a driving device thereof, and more particularly to a driving method of a three-dimensional display and a driving device thereof.
第1圖描述傳統的三維顯示器的機制。三維顯示器100需要使用者利用一對偏光眼鏡110觀看。Figure 1 depicts the mechanism of a conventional three-dimensional display. The three-dimensional display 100 requires the user to view with a pair of polarized glasses 110.
三維顯示器是以120Hz的反應速度交互呈現左眼影像L與右眼影像R。每一個影像是由一個畫面(frame)組成。顯示器100在時間0-1/120時顯示影像F1、在時間1/120-2/120時顯示影像F2、在時間點2/120-3/120時顯示影像F3，以此類推。在時間點0時開啟偏光眼鏡110的右鏡片，使得右眼接收到影像F1，在時間點1/120時開啟偏光眼鏡110的左鏡片，使得左眼接收到影像F2，以此類推。The three-dimensional display interactively presents the left-eye image L and the right-eye image R at a reaction speed of 120 Hz. Each image is composed of a frame. The display 100 displays the image F1 at time 0-1/120, the image F2 at time 1/120-2/120, the image F3 at time 2/120-3/120, and so on. When the time point 0 is turned on, the right lens of the polarizing glasses 110 is turned on, so that the right eye receives the image F1, and at the time point 1/120, the left lens of the polarizing glasses 110 is turned on, so that the left eye receives the image F2, and so on.
後來三維顯示器演進到使用240Hz切換畫面。然而，如果一個影像是由一個畫面(frame)組成，亦即是一個畫面是1/240秒的時間呈現，則因為顯示器面板的反應速度不一定跟得上，將造成無法在一個畫面時間內達到影像該有的灰階，而導致使用者視覺上出現影像的串線(crosstalk)干擾。Later, the 3D display evolved to use 240Hz switching screens. However, if an image is composed of a frame, that is, a picture is displayed in 1/240 seconds, because the response speed of the display panel does not necessarily keep up, it will not be achieved in one screen time. The image has a gray scale, which causes the user to visually see crosstalk interference of the image.
因此，有必要提供一種可以克服240Hz的顯示器的影像串線干擾的裝置或方法。Therefore, it is necessary to provide an apparatus or method that can overcome image string interference of a 240 Hz display.
本發明提供一種三維顯示器的驅動方法。驅動方法包括：於第一影像的第一畫面週期藉由處理模組接收第一影像的第一畫面資料，第一畫面資料包括第一目標灰階值；於第一影像的第一畫面週期藉由灰階查表模組根據第一目標灰階值及前影像灰階值產生第一過驅動灰階值；於第一影像的第一畫面週期藉由儲存選擇器及儲存裝置使得前影像灰階值維持原有的灰階值；於第一影像的第一畫面週期藉由驅動電路根據第一過驅動灰階值輸出驅動訊號；於第一影像的第二畫面週期藉由處理模組接收第一影像的第二畫面資料，第二畫面資料包括第一目標灰階值；於第一影像的第二畫面週期藉由灰階查表模組根據第一目標灰階值及前影像灰階值產生第二過驅動灰階值；於第一影像的第二畫面週期藉由儲存選擇器及儲存裝置使得前影像灰階值更新為第一目標灰階值；以及於第一影像的第二畫面週期，藉由驅動電路根據第二過驅動灰階值輸出驅動訊號，使得於第一影像的第二畫面的工作時間形成具有第一目標灰階值的第一影像於三維顯示器。The invention provides a driving method of a three-dimensional display. The driving method includes: receiving, by the processing module, the first picture data of the first image in the first picture period of the first image, where the first picture data includes the first target gray level value; and borrowing in the first picture period of the first image The first overdrive grayscale value is generated by the grayscale lookup table module according to the first target grayscale value and the front image grayscale value; the front image gray is made by storing the selector and the storage device in the first frame period of the first image The step value maintains the original grayscale value; the driving signal is output by the driving circuit according to the first overdriving grayscale value in the first picture period of the first image; and is received by the processing module in the second picture period of the first image The second image data of the first image, the second image data includes a first target grayscale value; and the second image period of the first image is determined by the grayscale lookup module according to the first target grayscale value and the front image grayscale The value generates a second overdrive grayscale value; the front image grayscale value is updated to the first target grayscale value by storing the selector and the storage device in the second frame period of the first image; and the second image is in the second image Picture period, by Moving a first image having a first circuit forming a target grayscale values according to the operating time of the second picture a second overdrive grayscale values output drive signal, such that the first image in three-dimensional display.
本揭露更提供一種三維顯示器驅動裝置。驅動裝置包括處理模組、灰階查表模組、同步單元、儲存選擇器、儲存裝置及驅動電路。處理模組於一影像週期接收影像資料，影像資料包括影像的一目標灰階值。灰階查表模組於影像的第一畫面週期根據目標灰階值及前影像灰階值產生第一過驅動灰階值，於影像的第二畫面週期根據目標灰階值及前影像灰階值產生第二過驅動灰階值。同步單元根據影像資料發出同步信號，同步信號的第一狀態表示影像的第一畫面週期，同步信號的第二狀態表示影像的第二畫面週期。儲存選擇器根據同步信號決定輸出目前灰階值或前影像灰階值。儲存裝置用以輸出前影像灰階值且儲存來自儲存選擇器的影像灰階值。驅動電路於影像的第一畫面週期根據第一過驅動灰階值輸出驅動訊號；於影像的第二畫面週期根據第二過驅動灰階值輸出驅動訊號，使得於影像的第二畫面的一工作時間形成具有目標灰階值的影像於三維顯示器。The disclosure further provides a three-dimensional display driving device. The driving device comprises a processing module, a grayscale look-up table module, a synchronization unit, a storage selector, a storage device and a driving circuit. The processing module receives image data in an image period, and the image data includes a target grayscale value of the image. The grayscale look-up table module generates a first overdrive grayscale value according to the target grayscale value and the front image grayscale value in the first picture period of the image, and according to the target grayscale value and the front image grayscale in the second picture period of the image The value produces a second overdrive grayscale value. The synchronization unit sends a synchronization signal according to the image data. The first state of the synchronization signal represents the first picture period of the image, and the second state of the synchronization signal represents the second picture period of the image. The storage selector determines whether to output the current grayscale value or the pre-image grayscale value according to the synchronization signal. The storage device is configured to output the pre-image grayscale value and store the image grayscale value from the storage selector. The driving circuit outputs a driving signal according to the first overdriving grayscale value in the first picture period of the image; and outputs the driving signal according to the second overdriving grayscale value in the second picture period of the image, so that the second picture of the image is operated. The time forms an image with a target grayscale value on the three-dimensional display.
以上所述的驅動方法及驅動裝置不需要額外硬體成本而可以達到在240Hz的操作速度下，增加液晶驅動的時間並提升過驅動的效能。使得顯示面板顯示出目標灰階的影像，解決視覺影像串線的影響。The driving method and the driving device described above can increase the liquid crystal driving time and improve the overdriving performance at an operating speed of 240 Hz without additional hardware cost. The display panel displays the image of the target gray scale, and solves the influence of the visual image string.
為使本發明之上述目的、特徵和優點能更明顯易懂，下文特舉較佳實施例，並配合所附圖式，作詳細說明如下：第2a-2b圖係本發明的三維顯示器的機制。顯示面板210上的影像由連續的畫面L1、L2、R1與R2組成。第一影像的第一畫面L1與第二畫面L2形成左眼影像L，且第二影像的第一畫面R1與第二畫面R2形成右眼影像R。於本實施例中，在左眼影像L的第二個畫面L2的工作時間(duty time)顯示系統致動偏光眼鏡的左眼鏡片，讓使用者在這段工作時間接收第一影像(左眼影像)。同樣地，在右眼影像R的第二畫面R2的工作時間才致動偏光眼鏡的右眼鏡片，讓使用者在這段工作時間接收第二影像(右眼影像)。The above described objects, features and advantages of the present invention will become more apparent from the following description of the preferred embodiments of the invention. . The image on the display panel 210 is composed of continuous frames L1, L2, R1 and R2. The first picture L1 and the second picture L2 of the first image form a left eye image L, and the first picture R1 and the second picture R2 of the second picture form a right eye image R. In this embodiment, the duty time of the second picture L2 of the left-eye image L indicates that the system actuates the left-eye lens of the polarized glasses, so that the user receives the first image during the working time (left eye) image). Similarly, the right eye lens of the polarized glasses is actuated during the working time of the second picture R2 of the right eye image R, so that the user receives the second image (right eye image) during the working time.
第3圖係本發明的三維顯示器驅動裝置。三維顯示器驅動裝置300包括一處理模組310、一儲存裝置320、一灰階查表模組330、一驅動電路340、一同步單元350及一儲存選擇器360。Fig. 3 is a three-dimensional display driving device of the present invention. The three-dimensional display driving device 300 includes a processing module 310, a storage device 320, a grayscale look-up table module 330, a driving circuit 340, a synchronization unit 350, and a storage selector 360.
處理模組310用於在一影像週期期間接收影像資料，然後將影像資料做壓縮或截去等影像處理。於本實施例中，影像資料主要是影像的目標灰階值。處理模組310包括一色溫調整單元312、一壓縮單元316以及一截去單元314。於本實施例中，可能接收8位元或10位元的影像資料。透過截去單元314將10位元影像資料轉換成8位元資料。透過壓縮單元316，將10位元或8位元影像資料(就一個次像素而言)壓縮成6位元影像資料。壓縮單元316中可能包括一個映射查表(未顯示)。The processing module 310 is configured to receive image data during an image period, and then perform image processing such as compression or truncation of the image data. In this embodiment, the image data is mainly the target grayscale value of the image. The processing module 310 includes a color temperature adjustment unit 312, a compression unit 316, and a truncation unit 314. In this embodiment, it is possible to receive image data of 8-bit or 10-bit. The 10-bit image data is converted into 8-bit data by the truncation unit 314. Through the compression unit 316, 10-bit or 8-bit image data (in terms of one sub-pixel) is compressed into 6-bit image data. A mapping table (not shown) may be included in compression unit 316.
灰階查表模組330用於當在影像的第一畫面週期時，根據目標灰階值及前影像灰階值產生第一過驅動灰階值且當在影像的一第二畫面週期時根據目標灰階值及前影像灰階值產生第二過驅動灰階值。The grayscale lookup table module 330 is configured to generate a first overdrive grayscale value according to the target grayscale value and the front image grayscale value when the first picture period of the image is used, and when according to a second picture period of the image The target grayscale value and the pre-image grayscale value generate a second overdrive grayscale value.
同步單元350用於根據影像的畫面週期產生同步信號，以表示目前的時間點是在第一畫面週期(R1/F3)或是第二週期畫面(R2/F4)。舉例來說，在影像的第一畫面週期(R1/F3)時，同步信號為第一狀態，例如準位0，在影像的第二畫面週期(R2,F4)時，同步信號為第二狀態，例如準位1，但不限於此。The synchronization unit 350 is configured to generate a synchronization signal according to the picture period of the image to indicate whether the current time point is in the first picture period (R1/F3) or the second period picture (R2/F4). For example, in the first picture period (R1/F3) of the image, the synchronization signal is in the first state, for example, the level 0, and in the second picture period (R2, F4) of the image, the synchronization signal is in the second state. For example, the level 1 is, but is not limited to.
儲存選擇器360將根據同步信號的準位決定輸出目標 灰階值或前影像灰階值。舉例來說，當同步信號為1時，儲存選擇器360輸出來自處理模組310的目標灰階值；當同步信號為0時，儲存選擇器360輸出來自儲存裝置320的前影像灰階值。儲存裝置320用以輸出前影像灰階值到灰階查表模組330，然後再儲存來自儲存選擇器360的影像灰階值。The storage selector 360 will determine the output target based on the level of the synchronization signal. Grayscale value or pre-image grayscale value. For example, when the sync signal is 1, the storage selector 360 outputs the target grayscale value from the processing module 310; when the sync signal is 0, the storage selector 360 outputs the pre-image grayscale value from the storage device 320. The storage device 320 is configured to output the pre-image grayscale value to the grayscale lookup table module 330, and then store the image grayscale value from the storage selector 360.
於本實施例中，將以過驅動灰階值大於目標灰階值的情況為例。根據不同的需求，灰階查表亦可以設計過驅動電壓小於或等於目標灰階值。請參考第2b圖。舉例來說，在畫面F1與F2(左眼影像)時，影像的灰階是零，在畫面F3與F4(右眼影像)時，既定目標灰階是125(希望讓觀看者看到具有目標灰階125的影像)。對於右眼影像來說，前影像灰階值是零。在第一畫面週期R1/F3時，灰階查表模組330根據目標灰階與前影像灰階可得到過驅動灰階值。同步單元350發出代表第一畫面週期的0準位的同步信號。儲存選擇器360根據0準位決定不更新儲存裝置320中的前影像灰階值。也就是維持目前的前影像灰階值為0。當在第二畫面週期R2/F4時，目標灰階不變，前影像灰階維持在灰階值0，所以灰階查表模組330根據目標灰階與前影像灰階可得到同樣的過驅動灰階值。同步單元350發出代表第二畫面週期的1準位的同步信號。儲存選擇器360根據1準位決定更新儲存裝置320中的前影灰階值為125。於第二影像的第一畫面週期L1/F5時，影像的目標灰階改變為165，而前影像灰階已經改變成灰階值125。此時，灰階查表模組330根據目標灰階與前影像灰階可得到新的過驅動灰階值。同步單元350發出代表第一畫面週期的準位的同步信號。儲存選擇器360根據0準位決定不更新儲存裝置320中的前影像灰階值。在第二影像的第二畫面週期R2/F4時，目標灰階不變，前影像灰階維持在灰階值125，所以灰階查表模組330根據目標灰階與前影像灰階可得到同樣的過驅動灰階值。同步單元350發出代表第二畫面週期的1準位的同步信號。儲存選擇器360根據1準位決定更新儲存裝置320中的前影灰階值為165。In this embodiment, the case where the overdrive grayscale value is greater than the target grayscale value will be taken as an example. According to different requirements, the grayscale look-up table can also be designed to have a driving voltage less than or equal to the target grayscale value. Please refer to Figure 2b. For example, in the pictures F1 and F2 (left eye image), the gray level of the image is zero. When the pictures F3 and F4 (right eye image), the target gray level is 125 (hopefully let the viewer see the target). Grayscale 125 image). For the right eye image, the front image grayscale value is zero. During the first picture period R1/F3, the gray level look-up table module 330 can obtain the overdrive gray scale value according to the target gray level and the front image gray level. The synchronization unit 350 issues a synchronization signal representing the 0 level of the first picture period. The storage selector 360 determines not to update the pre-image grayscale values in the storage device 320 based on the zero level. That is to maintain the current pre-image grayscale value of 0. When in the second picture period R2/F4, the target gray level is unchanged, and the front image gray level is maintained at the gray level value of 0, so the gray level lookup table module 330 can obtain the same according to the target gray level and the front image gray level. Drive grayscale values. The synchronizing unit 350 issues a synchronizing signal representing a level of the second picture period. The storage selector 360 determines the pre-shadow grayscale value in the storage device 320 based on the 1 level. At the first picture period L1/F5 of the second image, the target gray level of the image is changed to 165, and the front image gray level has been changed to the gray level value 125. At this time, the grayscale lookup table module 330 can obtain a new overdrive grayscale value according to the target grayscale and the front image grayscale. The synchronization unit 350 emits a synchronization signal representing the level of the first picture period. The storage selector 360 determines not to update the pre-image grayscale values in the storage device 320 based on the zero level. In the second picture period R2/F4 of the second image, the target gray level is unchanged, and the front image gray level is maintained at the gray level value 125, so the gray level look-up table module 330 can obtain the target gray level and the front image gray level. The same overdrive grayscale value. The synchronizing unit 350 issues a synchronizing signal representing a level of the second picture period. The storage selector 360 determines the pre-shadow grayscale value 165 in the storage device 320 based on the 1-level decision.
驅動電路340於影像的第一畫面週期，根據第一過驅動灰階值輸出驅動訊號。且於影像的第二畫面週期，根據第二過驅動灰階值輸出驅動訊號。使得於影像的第二畫面的一工作時間形成具有一目標灰階值的影像於三維顯示器。利用連續兩次重複的過驅動灰階值驅動顯示器，使得驅動時間增加並且提升過驅動之效能。工作時間也是偏光眼鏡運作的時間，也就是說只有在每個週期的這個時間內使用者的左右眼睛才分別接收到影像。參考第2a圖，工作時間係影像的第二畫面週期(R2/F4及L2/F6)的末端的既定工作時間。於本實施例中，工作時間是1.572ms，但不限於此。The driving circuit 340 outputs a driving signal according to the first overdriving grayscale value in the first picture period of the image. And in the second picture period of the image, the driving signal is output according to the second overdrive grayscale value. The image having a target grayscale value is formed on the three-dimensional display during a working time of the second image of the image. Driving the display with successively driven overdrive grayscale values results in increased drive time and improved overdrive performance. Working time is also the time when the polarized glasses operate, that is, only the left and right eyes of the user receive the images separately during this period of each cycle. Referring to Figure 2a, the working time is the established working time at the end of the second picture period (R2/F4 and L2/F6) of the image. In the present embodiment, the working time is 1.572 ms, but is not limited thereto.
第4圖係本發明的三維顯示器的驅動方法的流程圖。另外參考第2b圖。首先在步驟402，藉由一處理模組於第一影像R的第一畫面週期R1/F3接收第一影像的第一畫面資料。例如在時間2/240的時候接收第一影像的第一畫面資料。第一畫面資料包括第一影像的目標灰階值(第一目標灰階值)，例如125。此時，前影像灰階值是0。Fig. 4 is a flow chart showing a driving method of the three-dimensional display of the present invention. See also Figure 2b. First, in step 402, the first picture data of the first image is received by the processing module in the first picture period R1/F3 of the first image R. For example, the first picture material of the first image is received at time 2/240. The first picture material includes a target grayscale value (first target grayscale value) of the first image, such as 125. At this time, the front image grayscale value is 0.
接著，在步驟404，藉由灰階查表模組根據第一目標灰階值及前影像灰階值產生第一過驅動灰階值。於本實施例中，第一目標灰階值為125，前影像灰階值為零。Next, in step 404, the first overdrive grayscale value is generated according to the first target grayscale value and the pre-image grayscale value by the grayscale lookup table module. In this embodiment, the first target grayscale value is 125, and the front image grayscale value is zero.
然後在步驟406，藉由一驅動電路根據第一過驅動灰階輸出驅動訊號。如第2b圖所示，在第一影像R的第一畫面期間R1/F3期間將灰階值提升到X值。Then in step 406, the driving signal is output according to the first overdriving gray scale by a driving circuit. As shown in FIG. 2b, the grayscale value is raised to the X value during the first picture period R1/F3 of the first image R.
在步驟408藉由儲存選擇器及儲存裝置根據一同步信號的一第一狀態使得前影像灰階值維持原有的灰階值。也就是儲存選擇器根據同步信號的0準位決定輸出前影像灰階值且儲存到儲存裝置。In step 408, the pre-image grayscale value is maintained at the original grayscale value according to a first state of a synchronization signal by the storage selector and the storage device. That is, the storage selector determines the output image grayscale value according to the zero level of the synchronization signal and stores it in the storage device.
在步驟410，於第一影像週期的第二畫面週期R2/F4藉由處理模組接收第一影像的第二畫面資料，第二畫面資料包括第一影像的目標灰階值(第一目標灰階值)。In step 410, the second picture data of the first image is received by the processing module in the second picture period R2/F4 of the first image period, and the second picture data includes the target gray level value of the first image (the first target gray) Order value).
在步驟412，藉由灰階查表模組根據第一目標灰階值及前影像灰階值產生第二過驅動灰階值。此時，第一目標灰階值仍然為125，前影像灰階值維持為零。In step 412, a second overdrive grayscale value is generated according to the first target grayscale value and the front image grayscale value by the grayscale lookup table module. At this time, the first target grayscale value is still 125, and the pre-image grayscale value is maintained at zero.
在步驟414，藉由驅動電路根據第二過驅動灰階值輸出驅動訊號，使得於第一影像的R第二畫面的工作時間形成具有第一目標灰階值的第一影像R於三維顯示器。In step 414, the driving circuit outputs a driving signal according to the second overdrive grayscale value, so that the working time of the R second screen of the first image forms a first image R having the first target grayscale value on the three-dimensional display.
在步驟416，藉由儲存選擇器及儲存裝置根據同步信號的第二狀態使得前影像灰階值等於第一目標灰階值(亦即為125)/更新儲存裝置。也就是儲存選擇器根據同步信號的1準位決定輸出目標灰階值且儲存到儲存裝置。At step 416, the storage image selector and the storage device cause the pre-image grayscale value to be equal to the first target grayscale value (ie, 125)/update storage device according to the second state of the synchronization signal. That is, the storage selector determines the output target grayscale value according to the level 1 of the synchronization signal and stores it in the storage device.
於本實施例中，以過驅動灰階值大於目標灰階值的情況為例。在進行查表的步驟404與步驟412，藉由重複輸入相同的第一目標灰階值125與前影像灰階值0到灰階查表模組取得相同的過驅動灰階值，促使影像驅動時間增加，進而讓顯示面板顯示出目標灰階的影像。過驅動灰階值大於第一目標灰階值125則是因為使用過驅動的技術促使液晶顯示器的響應加速上升。依顯示器反應速率的不同，過驅動值可能會不同，灰階查表亦可以設計過驅動電壓小於或等於目標灰階值。In this embodiment, the case where the overdrive grayscale value is greater than the target grayscale value is taken as an example. In step 404 and step 412 of the table lookup, the same overdrive grayscale value is obtained by repeatedly inputting the same first target grayscale value 125 and the previous image grayscale value 0 to the grayscale lookup table module, thereby promoting image driving. The time increases, which in turn causes the display panel to display an image of the target grayscale. The overdrive grayscale value is greater than the first target grayscale value of 125 because the overdrive technique is used to cause the response of the liquid crystal display to accelerate. The overdrive value may be different depending on the reaction rate of the display. The grayscale lookup table may also be designed such that the drive voltage is less than or equal to the target grayscale value.
參考第2b圖，在畫面R2/F4期間，將影像的灰階由X提升到125。在Tx時間點致動偏光眼鏡，使得使用者的右眼透過偏光眼鏡看到三維顯示器上具有第一目標灰階值125的第一影像R。於本實施例中，工作時間大約是1.572秒，但不限於此。Referring to Figure 2b, during the picture R2/F4, the gray level of the image is raised from X to 125. The polarized glasses are actuated at the Tx time point such that the user's right eye sees the first image R having the first target grayscale value 125 on the three-dimensional display through the polarized glasses. In the present embodiment, the working time is about 1.572 seconds, but is not limited thereto.
接著，在步驟418，於第二影像L的第一畫面週期L1/F5，藉由該處理模組接收第二影像的第一畫面資料。例如在時間4/240的時候接收第二影像L的第一畫面資料。第二影像L的第一畫面資料包括第二影像L的目標灰階值(第二目標灰階值)，例如165。此時，前影像灰階值是125。Next, in step 418, the first picture data of the second image is received by the processing module in the first picture period L1/F5 of the second image L. For example, the first picture material of the second image L is received at time 4/240. The first picture material of the second image L includes a target gray level value (second target gray level value) of the second image L, for example, 165. At this time, the front image grayscale value is 125.
在步驟420，藉由灰階查表模組根據第二目標灰階值及前影像灰階值產生第三過驅動灰階值。於此時，第二目標灰階值為165，前影像灰階值為125。In step 420, a third overdrive grayscale value is generated according to the second target grayscale value and the front image grayscale value by the grayscale lookup table module. At this time, the second target grayscale value is 165, and the front image grayscale value is 125.
在步驟422，藉由驅動電路根據第三過驅動灰階值輸出驅動訊號。如第2b圖所示，在L1/F5期間將灰階值提升到Y值。At step 422, the drive circuit outputs a drive signal according to the third overdrive grayscale value. As shown in Figure 2b, the grayscale value is raised to the Y value during L1/F5.
在步驟424，藉由儲存選擇器及儲存裝置根據同步信號的第一狀態使得前影像灰階值維持目前的灰階值。也就 是儲存選擇器根據同步信號的0準位決定輸出前影像灰階值且儲存到儲存裝置。At step 424, the pre-image grayscale value is maintained at the current grayscale value according to the first state of the synchronization signal by the storage selector and the storage device. Also The storage selector determines the output image grayscale value according to the zero level of the synchronization signal and stores it in the storage device.
在步驟426，於第二影像週期的第二畫面週期L2/F6，藉由處理模組接收第二影像的第二畫面資料，第二畫面資料包括第二影像的目標灰階值(第二目標灰階值)。In step 426, the second picture data of the second image is received by the processing module in the second picture period L2/F6 of the second image period, and the second picture data includes the target gray level value of the second image (the second target) Gray scale value).
在步驟428，藉由灰階查表模組根據第二目標灰階值165及前影像灰階值125產生第四過驅動灰階值。In step 428, a fourth overdrive grayscale value is generated according to the second target grayscale value 165 and the pre-image grayscale value 125 by the grayscale lookup table module.
在步驟430，藉由驅動電路根據第四過驅動灰階值更提升第二影像L的灰階值，使得於第二影像的第二畫面的一工作時間形成具有第二目標灰階值的第二影像L於三維顯示器。參考第2b圖，在畫面L2/F6期間，將影像的灰階由Y提升到165。在Ty時間點致動偏光眼鏡，使得使用者的左眼可以透過偏光眼鏡看到三維顯示器上具有第二目標灰階值165的第二影像L。於本實施例中，工作時間大約是1.572秒，但不限於此。In step 430, the driving circuit increases the grayscale value of the second image L according to the fourth overdrive grayscale value, so that a working time of the second image of the second image forms a second grayscale value. The second image L is in a three-dimensional display. Referring to Figure 2b, during the picture L2/F6, the gray level of the image is raised from Y to 165. The polarized glasses are actuated at the Ty time point so that the left eye of the user can see the second image L having the second target grayscale value 165 on the three-dimensional display through the polarized glasses. In the present embodiment, the working time is about 1.572 seconds, but is not limited thereto.
最後，在步驟432，藉由儲存選擇器及儲存裝置根據同步信號的第二狀態使得前影像灰階值等於第二目標灰階值(亦即165)/更新儲存裝置。也就是儲存選擇器根據同步信號的1準位決定接收目標灰階值且儲存到儲存裝置。此時，第一目標灰階值仍然為165，前影像灰階值維持為125。Finally, in step 432, the pre-image grayscale value is equal to the second target grayscale value (ie, 165)/update storage device according to the second state of the synchronization signal by the storage selector and the storage device. That is, the storage selector determines the reception target grayscale value according to the level 1 of the synchronization signal and stores it in the storage device. At this time, the first target grayscale value is still 165, and the pre-image grayscale value is maintained at 125.
於本實施例中，藉由保持儲存器320中前影像灰階值不變，使得顯示器由連續兩次重複的過驅動灰階值驅動，進而增加驅動時間並且提升過驅動之效能。In this embodiment, by keeping the grayscale value of the pre-image in the memory 320 unchanged, the display is driven by two consecutive repeated overdrive grayscale values, thereby increasing the driving time and improving the performance of the overdrive.
最後，熟此技藝者可體認到他們可以輕易地使用揭露的觀念以及特定實施例為基礎而變更及設計可以實施同樣 目的之其他結構且不脫離本發明以及申請專利範圍。Finally, those skilled in the art will recognize that they can easily use the notion of disclosure and specific embodiments to change and design to implement the same Other structures of the invention are not departed from the scope of the invention and the patent application.
100‧‧‧三維顯示器100‧‧‧3D display
110‧‧‧偏光眼鏡110‧‧‧ Polarized glasses
120‧‧‧面板120‧‧‧ panel
130‧‧‧偏光片130‧‧‧ polarizer
210‧‧‧顯示面板210‧‧‧ display panel
300‧‧‧三維顯示器驅動裝置300‧‧‧3D display driver
310‧‧‧處理模組310‧‧‧Processing module
312‧‧‧色溫調整單元312‧‧‧Color temperature adjustment unit
316‧‧‧壓縮單元316‧‧‧Compression unit
314‧‧‧截去單元314‧‧‧Cut unit
320‧‧‧儲存裝置320‧‧‧Storage device
330‧‧‧灰階查表模組330‧‧‧ Grayscale look-up table module
340‧‧‧驅動電路340‧‧‧ drive circuit
350‧‧‧同步單元350‧‧‧Synchronization unit
360‧‧‧儲存選擇器360‧‧‧Storage selector
380‧‧‧面板380‧‧‧ panel
402、404、406、408、410、412、414、416、418、420、422‧‧‧方法步驟402, 404, 406, 408, 410, 412, 414, 416, 418, 420, 422 ‧ ‧ method steps
第1圖係傳統三維顯示器的機制；第2a-2b圖係本發明的三維顯示器的機制；第3圖係本發明的三維顯示器驅動裝置；以及第4a-4b圖係本發明的三維顯示器的驅動方法的流程圖。1 is a mechanism of a conventional three-dimensional display; 2a-2b is a mechanism of the three-dimensional display of the present invention; FIG. 3 is a three-dimensional display driving device of the present invention; and FIG. 4a-4b is a driving of the three-dimensional display of the present invention; Flow chart of the method.
300‧‧‧三維顯示器驅動裝置300‧‧‧3D display driver
310‧‧‧處理模組310‧‧‧Processing module
312‧‧‧色溫調整單元312‧‧‧Color temperature adjustment unit
316‧‧‧壓縮單元316‧‧‧Compression unit
314‧‧‧截去單元314‧‧‧Cut unit
320‧‧‧儲存裝置320‧‧‧Storage device
330‧‧‧灰階查表模組330‧‧‧ Grayscale look-up table module
340‧‧‧驅動電路340‧‧‧ drive circuit
350‧‧‧同步單元350‧‧‧Synchronization unit
360‧‧‧儲存選擇器360‧‧‧Storage selector
380‧‧‧面板380‧‧‧ panel
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