TWI466088B - Display apparatus - Google Patents
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Description
本發明係關於一種顯示方法，特別關於一種採用色序顯示之顯示裝置。The present invention relates to a display method, and more particularly to a display device using color sequential display.
在目前之顯示裝置中，常採用紅(R)、綠(G)、與藍(B)三原色色序法(field sequential color,FSC)來顯示影像。然而，在色序法驅動下，當顯示裝置顯示動態影像而觀看者隨著動態影像之移動方向而追視時，或者當顯示裝置顯示靜態影像而觀看者掃視靜態影像時，由於觀看者眼球移動，使得來自動態/靜態影像之光線投射在觀看者眼球之視網膜上的位置不同，導致了觀看者在視覺上看到多條單色線條，即色分離(color breakup,CBU)現象。In current display devices, red (R), green (G), and blue (B) field sequential color (FSC) are often used to display images. However, driven by the color sequential method, when the display device displays the moving image and the viewer follows the moving direction of the moving image, or when the display device displays the still image and the viewer scans the still image, the viewer moves the eyeball. The position of the light from the dynamic/static image is projected on the retina of the viewer's eyeball, which causes the viewer to visually see a plurality of monochromatic lines, that is, a color breakup (CBU) phenomenon.
因此，如何提供一種顯示方法與顯示裝置，能夠改善色分離現象，以提高觀看者的視覺品質，實為當前重要課題之一。Therefore, how to provide a display method and a display device, which can improve the color separation phenomenon and improve the visual quality of the viewer, is one of the current important topics.
有鑒於上述課題，本發明之一目的在於提供一種顯示方法與顯示裝置，能夠改善色分離現象，以提高觀看者的視覺品質。In view of the above problems, it is an object of the present invention to provide a display method and a display device which can improve the color separation phenomenon and improve the visual quality of a viewer.
本發明提供一種顯示裝置，其包括一顯示面板以及一處理器。處理器擷取一畫框時間之一影像資料，且根據影 像資料產生複數亮度值以及複數穿透率值。此影像資料係對應一目標影像。顯示面板根據該等亮度值以及穿透率值依序顯示一第一影像以及一第二影像。第一與第二影像皆為彩色影像。第一彩色影像之畫面能量至少大於第二彩色影像之畫面能量的五倍。此外，第一影像之畫面能量至少佔有目標影像之總畫面能量的百分之七十。The invention provides a display device comprising a display panel and a processor. The processor captures one of the frame time image data, and according to the image The image data produces a complex luminance value and a complex transmittance value. This image data corresponds to a target image. The display panel sequentially displays a first image and a second image according to the brightness values and the transmittance values. Both the first and second images are color images. The picture energy of the first color image is at least five times greater than the picture energy of the second color image. In addition, the picture energy of the first image occupies at least 70% of the total picture energy of the target image.
本發明另提供一種顯示方法，用於控制一顯示裝置。顯示裝置包括配置成一顯示陣列之複數畫素，且更包括複數背光光源。顯示方法包括擷取一畫框時間之一影像資料，影像資料對應一目標影像。顯示方法更包括根據影像資料依序顯示一第一影像以及一第二影像，第一與第二影像皆為彩色影像。第一影像之畫面能量至少大於第二影像之畫面能量的五倍，此外，第一影像之畫面能量至少佔有目標影像之總畫面能量的百分之七十。本發明可搭配快速液晶，例如光學補償彎曲型(Optically Compensated Bend,OCB)液晶、藍相(Blue Phase)液晶或鐵電型液晶(Ferroelectric Liquid Crystal,FLC)，其具有高速的反應時間，可達到液晶快速響應的需求。The present invention further provides a display method for controlling a display device. The display device includes a plurality of pixels configured as a display array, and further includes a plurality of backlight sources. The display method includes capturing image data of one frame time, and the image data corresponds to a target image. The display method further includes sequentially displaying a first image and a second image according to the image data, and the first and second images are all color images. The picture energy of the first image is at least five times greater than the picture energy of the second image. In addition, the picture energy of the first image accounts for at least 70% of the total picture energy of the target image. The invention can be combined with a fast liquid crystal, such as an Optically Compensated Bend (OCB) liquid crystal, a Blue Phase liquid crystal or a Ferroelectric Liquid Crystal (FLC), which has a high reaction time and can be achieved. The need for fast response to liquid crystals.
以下將參照相關圖式，說明依本發明較佳實施例之一種顯示裝置以及顯示方法，其中相同的元件將以相同的參照符號加以說明。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a display device and a display method according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.
圖1係表示根據本發明一較佳實施例之顯示裝置。如 圖1所示，顯示裝置1包括一處理器10以及一顯示面板11。在此實施例中，顯示面板11以一液晶顯示面板來實施。處理器10接收複數影像資料，藉此在一畫框時間內根據一影像資料來顯示一目標影像。在此實施例中，係以處理器10接收一畫框時間之一影像資料DIN 為例來說明。處理器10根據影像資料DIN 來產生複數亮度值B以及複數穿透率值T。顯示面板11接收來自處理器10之複數亮度值B以及複數穿透率值T。根據這些亮度值B以及穿透率值T，顯示面板11在上述畫框時間內至少依序顯示一第一影像及一第二影像，即兩個連續之彩色影像，藉以呈現上述畫框時間之一目標影像。1 shows a display device in accordance with a preferred embodiment of the present invention. As shown in FIG. 1, the display device 1 includes a processor 10 and a display panel 11. In this embodiment, the display panel 11 is implemented as a liquid crystal display panel. The processor 10 receives the plurality of image data, thereby displaying a target image based on an image data within a frame time. In this embodiment, the processor 10 receives an image data D IN of one frame time as an example. The processor 10 generates a complex luminance value B and a complex transmittance value T based on the image data D IN . The display panel 11 receives the complex luminance value B and the complex transmittance value T from the processor 10. According to the brightness value B and the transmittance value T, the display panel 11 sequentially displays at least one first image and one second image, that is, two consecutive color images, in the above frame time, thereby presenting the frame time. A target image.
在另一實施例中，根據來自處理器10之複數亮度值B以及複數穿透率值T，於上述畫框時間內，顯示面板11先依序顯示兩個連續之彩色影像，接著顯示至少一彩色影像或至少一單原色影像，藉以顯示上述畫框時間之一目標影像。舉例來說，在一畫框時間內，於兩個連續之彩色影像之後，顯示面板11接著顯示兩個彩色影像，或者接著顯示三個單原色影像。In another embodiment, according to the complex brightness value B and the complex transmittance value T from the processor 10, the display panel 11 sequentially displays two consecutive color images in sequence during the frame time, and then displays at least one A color image or at least one single primary image to display one of the target images of the frame time. For example, after two consecutive color images in one frame time, the display panel 11 then displays two color images, or then displays three single primary color images.
根據本發明之實施例，不論首先顯示之第一影像、第二影像(兩彩色影像)之後是否接續其他之影像，第一影像之畫面能量至少大於第二影像之畫面能量的五倍，且第一影像的畫面能量佔有至少該目標影像之總畫面能量的百分之七十。在此實施例中，每一影像之畫面能量係依據此影像之色度、亮度及穿透率來決定。According to the embodiment of the present invention, the picture energy of the first image is at least five times greater than the picture energy of the second image, regardless of whether the first image and the second image (two color images) are displayed first or not. The image energy of an image occupies at least 70% of the total picture energy of the target image. In this embodiment, the picture energy of each image is determined according to the chromaticity, brightness, and transmittance of the image.
圖2A係表示顯示面板11之示意圖。參閱圖2A，顯示面板11包括一顯示陣列20、一背光單元21、一驅動單元22、以及一背光驅動單元23。在圖2A中，為了清楚表示，以併排配置來呈現顯示陣列20與背光單元21。然而實際上，背光光源21配置在顯示陣列20之一側，例如相對設置。顯示陣列20包括複數畫素200，其配置在複數畫素行與複數畫素列上。驅動單元22根據來自處理器10之複數穿透率值T來控制每一畫素內複數液晶分子的轉向。請參閱圖2B，背光單元21包括複數背光光源LS，例如，複數紅色背光光源LSR、複數綠色背光光源LSG、以及複數藍色背光光源LSB。背光單元21更包括一導光板LG。在圖2B中，背光光源LS配置成兩行，分別位於導光板LG之左右兩側。而在其他實施例中，背光光源LS可配置在導光板LG之上下兩側或是四個角落的周遭區域，只要可控制分區出光之配置均可。背光驅動單元23根據來自處理器10之亮度值B來驅動背光光源LS發光。背光光源LS所發射之光線透過導光板LG改變光前進方向以進行混合。混合獲得之光線則提供至顯示陣列20。藉由來自導光板LG之混合光以及每一畫素內液晶分子的轉向，顯示面板11可顯示一影像。此影像之尺寸等於顯示陣列20之尺寸。紅色背光光源LSR、綠色背光光源LSG、以及藍色背光光源LSB的數量與排列順序可依據顯示裝置1之背光光學設計來決定。2A is a schematic view showing the display panel 11. Referring to FIG. 2A, the display panel 11 includes a display array 20, a backlight unit 21, a driving unit 22, and a backlight driving unit 23. In FIG. 2A, the display array 20 and the backlight unit 21 are presented in a side-by-side configuration for clarity of illustration. Actually, however, the backlight source 21 is disposed on one side of the display array 20, for example, oppositely disposed. Display array 20 includes a plurality of pixels 200 that are arranged on a plurality of pixel rows and a plurality of pixel columns. The drive unit 22 controls the steering of the plurality of liquid crystal molecules within each pixel based on the complex transmittance value T from the processor 10. Referring to FIG. 2B, the backlight unit 21 includes a plurality of backlight sources LS, for example, a plurality of red backlight sources LSR, a plurality of green backlight sources LSG, and a plurality of blue backlight sources LSB. The backlight unit 21 further includes a light guide plate LG. In FIG. 2B, the backlight source LS is disposed in two rows, which are respectively located on the left and right sides of the light guide plate LG. In other embodiments, the backlight source LS can be disposed on the lower side of the light guide plate LG or in the surrounding area of the four corners, as long as the configuration of the partition light can be controlled. The backlight driving unit 23 drives the backlight source LS to emit light in accordance with the luminance value B from the processor 10. The light emitted by the backlight source LS passes through the light guide plate LG to change the direction of light advancement for mixing. The light obtained by mixing is supplied to the display array 20. The display panel 11 can display an image by the mixed light from the light guide plate LG and the steering of the liquid crystal molecules in each pixel. The size of this image is equal to the size of display array 20. The number and arrangement order of the red backlight source LSR, the green backlight source LSG, and the blue backlight source LSB may be determined according to the backlight optical design of the display device 1.
圖3係表示根據本發明一較佳實施例之處理器10。參 閱圖3，處理器10包括一擷取單元30、一劃分單元31、計算單元32、34、36、以及減法單元33與35。圖4A及圖4B係表示根據本發明實施例用於顯示裝置1之顯示方法流程圖。FIG. 3 shows a processor 10 in accordance with a preferred embodiment of the present invention. Reference Referring to FIG. 3, the processor 10 includes a capture unit 30, a division unit 31, calculation units 32, 34, 36, and subtraction units 33 and 35. 4A and 4B are flowcharts showing a display method for the display device 1 according to an embodiment of the present invention.
以下說明，將以在一畫框時間內，顯示面板11先依序顯示一第一影像與一第二影像(兩個彩色影像)D1與D2，接著顯示三個單原色影像，例如紅色影像RF、綠色影像GF、與藍色影像BF。三個單原色影像的顯示順序不以依序顯示紅色影像RF、綠色影像GF、與藍色影像BF為限。根據本實施例，在一畫框時間內，顯示面板11可依序顯示至少兩個彩色影像D1與D2後，而之後的影像數目並不作限定。彩色影像D1與D2係為包含原始資料畫面中所有出現單原色之影像畫面，但若畫面資料來源之色彩單調時，亦可能出現單原色影像。在另一實施例中，於一畫框時間內，可顯示至少五個彩色影像D1至D5。而彩色影像D3至D5顯示之彩色影像之每一影像中可包含原始資料畫面中所有出現單原色之影像畫面或是僅單原色影像畫面。且彩色影像D3至D5亦可為全黑色之畫面，端視計算結果需求。In the following description, the display panel 11 sequentially displays a first image and a second image (two color images) D1 and D2 in a frame time, and then displays three single primary color images, such as a red image RF. , green image GF, and blue image BF. The display order of the three single primary color images is not limited to display the red image RF, the green image GF, and the blue image BF in order. According to the embodiment, after the display panel 11 can sequentially display at least two color images D1 and D2 in a frame time, the number of subsequent images is not limited. The color images D1 and D2 are images containing all the single primary colors in the original data screen. However, if the color of the source of the image data is monotonous, a single primary color image may appear. In another embodiment, at least five color images D1 through D5 may be displayed during a frame time. Each of the color images displayed by the color images D3 to D5 may include all image images of a single primary color or only a single primary image in the original data frame. And the color images D3 to D5 can also be all black pictures, and the calculation results are required.
參閱圖3、圖4A及圖4B，擷取單元30擷取一影像資料DIN ，如上所述(步驟S40)，影像資料DIN 係關於顯示在一畫框時間內的一目標影像。擷取單元30更根據影像資料DIN 來獲得複數畫素資料Pxy (步驟S41)。其中，x係表示顯示陣列20之畫素行的序數，且y係表示顯示陣 列20之畫素列的序數。因此，每一畫素資料Pxy 係對應配置在顯示陣列20中第x畫素行與第y畫素列之畫素。根據本發明之實施例，每一畫素資料Pxy 包括一紅色(r)畫素值、一綠色(g)畫素值、以及一藍色(b)畫素值()。Referring to FIG. 3, FIG. 4A and FIG. 4B, the capturing unit 30 captures an image data D IN as described above (step S40), and the image data D IN is related to a target image displayed in a frame time. The capturing unit 30 further obtains the plural pixel data P xy based on the image data D IN (step S41). Where x is the ordinal number of the pixel row of the display array 20, and y is the ordinal number of the pixel column of the display array 20. Therefore, each pixel data P xy corresponds to a pixel arranged in the xth pixel row and the yth pixel column in the display array 20. According to an embodiment of the invention, each pixel data P xy includes a red (r) pixel value , a green (g) pixel value And a blue (b) pixel value ( ).
接著，劃分單元31將複數畫素資料Pxy
劃分成一既定數量之資料群組(步驟S42)。舉例來說，複數畫素資料Pxy
劃分成m*n個資料群組。由於每一畫素資料對應一畫素，因此，如圖5所示，顯示陣列20之複數畫素相對地具有m*n個畫素區塊，且每一資料群組對應一畫素區塊。在第5圖中，以m=2與n=8為例來表示，即同一列上的畫素區塊數量等於2，且同一行上的畫素區塊數量等於8。對於每一畫素而言，紅色畫素值、綠色畫素值、以及藍色畫素值可分別由式(1)~(3)來表示：
其中，mn 係表示背光的分區區塊。、、、、與係分別表示在不同時序下顯示影像D1、D2、GF、BF、與RF時每一畫素所在之畫素區塊的紅色背光亮度值。、、、、與係分別表示在顯示影像D1、D2、GF、BF、與RF時每一畫素所在之畫素區塊的綠色背光亮度值。、、、、與係分別表示在顯示影像D1、D2、GF、BF、與RF時每一畫素所在之 畫素區塊的藍色背光亮度值。T 1 xy 、T 2 xy 、T 3 xy 、T 4 xy 、與T 5 xy 係分別表示在顯示影像D1、D2、GF、BF、與RF時每一畫素在畫素編號座標(x,y)上之穿透率值。由式(1)~(3)可得知，在不同的時序下複數畫素所顯示影像的總合即為目標影像。亦即，式(1)表示不同的時序下顯示之紅色光亮度總合即為目標影像之紅色光亮度值。Where mn is a partition block of the backlight. , , , ,versus It is the red backlight brightness value of the pixel block where each pixel is displayed when the images D1, D2, GF, BF, and RF are displayed at different timings. , , , ,versus The green backlight brightness values of the pixel blocks in which each pixel is displayed when displaying images D1, D2, GF, BF, and RF, respectively. , , , ,versus The blue backlight brightness values of the pixel blocks in which each pixel is displayed when displaying images D1, D2, GF, BF, and RF, respectively. T 1 xy , T 2 xy , T 3 xy , T 4 xy , and T 5 xy represent the coordinates of each pixel at the pixel number (x, y) when displaying images D1, D2, GF, BF, and RF, respectively. The value of the penetration rate. It can be known from equations (1) to (3) that the sum of the images displayed by the complex pixels at different timings is the target image. That is, the equation (1) indicates that the sum of the luminances of the red light displayed at different timings is the red luminance value of the target image.
根據上述，在第一、第二影像D1與D2之後，顯示面板10係顯示綠色影像GF、藍色影像BF、與紅色影像RF。在顯示綠色影像GF時，紅色與藍色背光光源不發光，因此且。在顯示藍色影像BF時，綠色與紅色背光光源不發光，因此且。在顯示紅色影像RF時，綠色與藍色背光光源不發光，因此且。According to the above, after the first and second images D1 and D2, the display panel 10 displays the green image GF, the blue image BF, and the red image RF. When the green image GF is displayed, the red and blue backlight sources do not emit light, so And . When the blue image BF is displayed, the green and red backlight sources do not emit light, so And . When the red image RF is displayed, the green and blue backlight sources do not emit light, so And .
因此，式(1)~(3)分別簡化為式(4)~(6)。Therefore, equations (1) to (3) are simplified to equations (4) to (6), respectively.
接著，計算單元32分別根據式(7)~(9)來計算在顯示彩色影像D1時，每一畫素區塊中的之紅色畫素值之總量、綠色畫素值之總量、以及藍色畫素值之總量(步驟S43)：
其中，k 係表示複數畫素值程度之數量，例如共256個程度(0~255)。、、以及係分別表示紅色畫素值、綠色畫素值、以及藍色畫素值之每一畫素值程度。F 表示畫素數量，Fi 表示第i階畫素值程度的畫素數量。因此，、、以及係分別表示在目標影像()的第(m,n)區域內對應紅色畫素值、綠色畫素值、以及藍色畫素值之第i階畫素程度的畫素數量。Where k is the number of degrees of complex pixel values, for example a total of 256 degrees (0 to 255). , ,as well as It is the degree of each pixel value of the red pixel value, the green pixel value, and the blue pixel value, respectively. F represents the number of pixels, and Fi represents the number of pixels of the i-th pixel value. therefore, , ,as well as Respectively represent the target image ( The number of pixels corresponding to the red pixel value, the green pixel value, and the i-th pixel of the blue pixel value in the (m, n)th region of the ).
式(7)~(9)(如圖6所示)即利用統計矩來計算出每一畫素區塊中紅色畫素值之總量、綠色畫素值之總量、以及藍色畫素值之總量，可藉此得知每一畫素區塊中，紅色、綠色、與藍色畫素值之分佈特性。在圖6中，畫素值程度的畫素數量、、以及僅為一示範例，不以此為限。實際上，畫素值程度的畫素數量、、以及係根據影像資料DIN 之畫素資料而定。Equations (7)~(9) (as shown in Figure 6) use statistical moments to calculate the red pixel values in each pixel block. Total amount Green pixel value Total amount And blue pixel values Total amount In this way, the distribution characteristics of red, green, and blue pixel values in each pixel block can be known. In Figure 6, the number of pixels in the pixel value level , ,as well as It is only an example and is not limited to this. In fact, the number of pixels of the pixel value , ,as well as It is based on the pixel data of the image data D IN .
接著，對於每一畫素而言，在計算出紅色畫素值之總量、綠色畫素值之總量、以及藍色畫素值之總量之後，計算單元32根據式(10)~(12)來分別計算出顯示彩色影像D1時的紅色亮度值、綠色亮度值、以及藍色亮度值(步驟S44)：
其中，表示取、、與中的最大值，取最大值主要的原因是，使背光單元21之背光亮度可以達到目標影像的最大亮度。、、以及分別表示每一畫素所在之畫素區塊中最大之紅色、綠色、以及藍色畫素值。among them, Express , ,versus The main reason for taking the maximum value is to make the backlight brightness of the backlight unit 21 reach the maximum brightness of the target image. , ,as well as Represents the largest red, green, and blue pixel values in the pixel block where each pixel is located.
在計算出紅色亮度值、綠色亮度值、以及藍色亮度值後，根據式(4)~(6)，由於每一式的等號右側第2、3項次的數值大於零，因此得到：
為了避免某一原色之亮度過大而超過目標畫面的亮度，因此計算單元32取、、與的最小值，以計算在顯示彩色影像D1時每一畫素之穿透率值T
1 xy
(步驟
S45)如式(13)：
對於每一畫素而言，在計算出紅色亮度值、綠色亮度值、以及藍色亮度值與穿透率值T
1 xy
後，減法單元33將紅色畫素值減去紅色亮度值與透率值T
1 xy
之乘積、將綠色畫素值減去綠色亮度值與透率值T
1 xy
之乘積、以及將藍色畫素值減去藍色亮度值與透率值T
1 xy
之乘積(步驟S46)，以計算三個差值，如式(14)~(16)：
式(14)~(16)中，等號左邊為已知的項次。In the equations (14) to (16), the left side of the equal sign is a known term.
接著，計算單元34根據在步驟S46所計算出之三個差值並採用如同步驟S43、S44之運算，同理可計算出顯示彩色影像D2時的紅色亮度值、綠色亮度值、以及藍色亮度值(步驟S47)。在此情況下，式(7)~(9)中的、、以及係分別表示在複數畫素資料P xy 分別減去、、以及後，對應剩餘畫素資料中紅色、綠色、與藍色畫素值之每一畫素值程度的畫素數量。Next, the calculating unit 34 calculates the red luminance value when displaying the color image D2 according to the three differences calculated in step S46 and using the operations as in steps S43 and S44. Green brightness value And blue brightness values (Step S47). In this case, in equations (7)~(9) , ,as well as The system respectively indicates that the P xy is subtracted from the complex pixel data. , ,as well as Then, the number of pixels corresponding to each pixel value of the red, green, and blue pixel values in the remaining pixel data.
在計算出紅色亮度值、綠色亮度值、以及藍色亮度值後，根據式(14)~(16)，由於每一式的等號右側第2項次的數值大於零，因此得到：
為了避免某一原色之亮度過大而超過目標畫面的亮度，因此計算單元34取三個相除值、、與中的最小值，以計算在顯示彩色影像D2時，每一畫素之穿透率值T
2 xy
(步驟S48)如式(17)：
對於每一畫素而言，在計算出紅色亮度值、綠色亮度值、以及藍色亮度值與穿透率值T
2 xy
後，減法單元35將式(14)~(16)等號右側之第一項次移至等號左側，換句話說，即減法單元35將差值()減去紅色亮度值與透率值T
2 xy
之乘積、將差值()減去綠色亮度值與透率值T
2 xy
之乘積、以及將差值()減去藍色亮度值與透率值T
2 xy
之乘積(步驟S49)，以計算三個差值，如式(18)~(20)：
接著，對於每一畫素而言，在計算出步驟S49之三個差值後，計算單元36分別根據式(21)~(23)計算出顯示綠色影像GF時的綠色亮度值、顯示藍色影像BF的藍色亮度值、以及顯示紅色影像RF的紅色亮度值(步驟S50)：
根據式(21)，計算單元36係選擇在同一畫素區塊中，複數畫素之差值()中最大者作為綠色亮度值。根據式(22)，計算單元36係選擇在同一畫素區塊中，複數畫素之差值()中最大者作為藍色亮度值。根據式(23)，計算單元36係選擇在同一畫素區塊中，複數畫素之差值()中最大者作紅色亮為度值。According to equation (21), the calculation unit 36 selects the difference between the complex pixels in the same pixel block ( The largest of them as the green brightness value . According to equation (22), the calculation unit 36 selects the difference between the complex pixels in the same pixel block ( The largest of them as the blue brightness value . According to equation (23), the calculation unit 36 selects the difference between the complex pixels in the same pixel block ( The largest of them is red and the value is red .
對於每一畫素而言，在計算出得綠色亮度值、藍色亮度值、以及紅色亮度值後，計算單元36分別根據式(24)~(26)來計算出穿透率值T
3 xy
、T
4 xy
、以及T
5 xy
(步驟S51)：
透過上述步驟S40-S51在計算出亮度值、、、、、、、、與以及穿透率值T 1 xy 、T 2 xy 、T 3 xy 、T 4 xy 、與T 5 xy 後，顯示面板10可根據這些亮度值來驅動背光光源發光，且可根據與這些穿透率值來控制每一畫素之液晶分子之轉向。Calculating the brightness value through the above steps S40-S51 , , , , , , , ,versus And after the transmittance values T 1 xy , T 2 xy , T 3 xy , T 4 xy , and T 5 xy , the display panel 10 can drive the backlight source to emit light according to the brightness values, and can be based on the values of the transmittances. To control the steering of the liquid crystal molecules of each pixel.
圖7A係表示根據本發明一實施例顯示兩個彩色影像與三個單原色影像之時序圖。參閱圖2A、圖2B及圖7A，在一畫框時間FT中之一期間TP1(由時間點TP0-1至時間點TP1-2)內，背光單元21根據對應每一畫素區塊之亮度值、、與來驅動背光光源LS發光。透過導光板LG的混光，每一畫素區塊中的畫素接收具有對應色彩程度之光線。此外，驅動單元22則根據對應每一畫素之穿透率值T 1 xy 來控制各自液晶分子的轉向。在期間TP1中，藉由背光光源LS的發光與液晶分子的轉向，顯示面板11則顯示彩色影像D1。7A is a timing diagram showing the display of two color images and three single primary color images in accordance with an embodiment of the present invention. Referring to FIG. 2A, FIG. 2B and FIG. 7A, in one period TP1 (from time point TP0-1 to time point TP1-2) in one frame time FT, the backlight unit 21 is based on the brightness of each corresponding pixel block. value , ,versus To drive the backlight source LS to emit light. Through the light mixing of the light guide plate LG, the pixels in each pixel block receive light having a corresponding color level. In addition, the driving unit 22 controls the steering of the respective liquid crystal molecules according to the transmittance value T 1 xy corresponding to each pixel. In the period TP1, the display panel 11 displays the color image D1 by the illumination of the backlight source LS and the steering of the liquid crystal molecules.
在接續期間TP1後之期間TP2(由時間點TP1-2至時間點TP2-3)中，背光單元21根據對應每一畫素區塊之亮度值、、與來驅動背光光源LS發光。透過導光板LG的混光，每一畫素區塊中的畫素接收具有對應色彩程度之彩色光線。此外，驅動單元22則根據對應每一畫素之穿透率值T 2 xy 來控制各自液晶分子的轉向。在期間TP2中，藉由背光光源LS的發光與液晶分子的轉向，顯示面 板11則顯示彩色影像D2。In the period TP2 (from the time point TP1-2 to the time point TP2-3) after the connection period TP1, the backlight unit 21 is based on the luminance value corresponding to each pixel block. , ,versus To drive the backlight source LS to emit light. Through the light mixing of the light guide plate LG, the pixels in each pixel block receive colored light having a corresponding color degree. In addition, the driving unit 22 controls the steering of the respective liquid crystal molecules according to the transmittance value T 2 xy corresponding to each pixel. In the period TP2, the display panel 11 displays the color image D2 by the light emission of the backlight source LS and the steering of the liquid crystal molecules.
在圖7A之實施例中，由於人眼對於綠色的靈敏度較高，因此，在接續期間TP2之期間TP3(由時間點TP2-3至時間點TP3-4)中，背光單元21根據對應每一畫素區塊之亮度值來驅動背光光源LS發光。透過導光板LG的混光，每一畫素區塊中的畫素接收具有對應色彩程度之綠色光線。此外，驅動單元22則根據對應每一畫素之穿透率值T 3 xy 來控制各自液晶分子的轉向。在期間TP3中，藉由背光光源LS的發光與液晶分子的轉向，顯示面板11則顯示綠色影像GF。In the embodiment of FIG. 7A, since the sensitivity of the human eye to green is high, in the period TP3 of the connection period TP2 (from the time point TP2-3 to the time point TP3-4), the backlight unit 21 according to each of the corresponding Luminance value of the pixel block To drive the backlight source LS to emit light. Through the light mixing of the light guide plate LG, the pixels in each pixel block receive green light having a corresponding color level. In addition, the driving unit 22 controls the steering of the respective liquid crystal molecules according to the transmittance value T 3 xy corresponding to each pixel. In the period TP3, the display panel 11 displays the green image GF by the light emission of the backlight source LS and the steering of the liquid crystal molecules.
在接續期間TP3之期間TP4(由時間點TP3-4至時間點TP4-5)中，背光單元21根據對應每一畫素區塊之亮度值來驅動背光光源LS發光。透過導光板LG的混光，每一畫素區塊中的畫素接收具有對應色彩程度之藍色光線。此外，驅動單元22則根據對應每一畫素之穿透率值T 4 xy 來控制各自液晶分子的轉向。在期間TP4中，藉由背光光源LS的發光與液晶分子的轉向，顯示面板11則顯示藍色影像BF。In the period TP4 of the connection period TP3 (from the time point TP3-4 to the time point TP4-5), the backlight unit 21 is based on the luminance value corresponding to each pixel block. To drive the backlight source LS to emit light. Through the light mixing of the light guide plate LG, the pixels in each pixel block receive blue light having a corresponding color degree. In addition, the driving unit 22 controls the steering of the respective liquid crystal molecules according to the transmittance value T 4 xy corresponding to each pixel. In the period TP4, the display panel 11 displays the blue image BF by the light emission of the backlight source LS and the steering of the liquid crystal molecules.
在接續期間TP4(由時間點TP4-5至下一畫框時間之時間點TP0-1’)之期間TP5中，背光單元21根據對應每一畫素區塊之亮度值來驅動背光光源LS發光。透過導光板LG的混光，每一畫素區塊中的畫素接收具有對應色彩程度之紅色光線。此外，驅動單元22則根據對應每一畫素之穿透率值T 5 xy 來控制各自液晶分子的轉向。在期間 TP5中，藉由背光光源LS的發光與液晶分子的轉向，顯示面板11則顯示紅色影像RF。In the period TP5 of the connection period TP4 (from the time point TP4-5 to the time point TP0-1' of the next frame time), the backlight unit 21 is based on the luminance value corresponding to each pixel block. To drive the backlight source LS to emit light. Through the light mixing of the light guide plate LG, the pixels in each pixel block receive red light having a corresponding color degree. In addition, the driving unit 22 controls the steering of the respective liquid crystal molecules according to the transmittance value T 5 xy corresponding to each pixel. In the period TP5, the display panel 11 displays the red image RF by the light emission of the backlight source LS and the turning of the liquid crystal molecules.
在畫框時間FT中，藉由影像D1、D2、GF、BF、與RF之依序顯示以及人眼的視覺暫留，觀看者可觀看到影像資料DIN 對應之目標影像。In the frame time FT, the viewer can view the target image corresponding to the image data D IN by the images D1, D2, GF, BF, and the sequential display of the RF and the persistence of the human eye.
根據上述步驟S43~S48中的式(7)~(17)可得知，目標影像中的主要色彩集中於期間TP1與TP2的彩色影像D1與D2。此外，與彩色影像D1與D2比較起來，後續的影像GF、BF、與RF之亮度較暗且彩度較低。因此，彩色影像D1與D2佔目標影像之總畫面能量的較大百分比，即能量集中於彩色影像D1與D2。相對於彩色影像D1與D2，影像GF、BF與RF近似於插黑影像。如此一來，當觀看者之眼球相對於目標影像進行移動時，對於影像GF、BF與RF的視覺感受較弱，藉此減緩了視覺上的分離現象。於一較佳實施例中，彩色影像D1之畫面能量至少大於彩色影像D2之畫面能量的五倍，且該彩色影像D1之畫面能量至少佔有該目標影像之總畫面能量的百分之七十。According to the equations (7) to (17) in the above steps S43 to S48, the main colors in the target image are concentrated on the color images D1 and D2 of the periods TP1 and TP2. In addition, compared with the color images D1 and D2, the subsequent images GF, BF, and RF are darker and have lower chroma. Therefore, the color images D1 and D2 account for a large percentage of the total picture energy of the target image, that is, the energy is concentrated on the color images D1 and D2. The images GF, BF, and RF approximate the black insertion image with respect to the color images D1 and D2. As a result, when the viewer's eye moves relative to the target image, the visual perception of the images GF, BF, and RF is weak, thereby slowing down the visual separation. In a preferred embodiment, the color image D1 has a picture energy that is at least five times greater than the picture energy of the color image D2, and the picture energy of the color image D1 occupies at least 70% of the total picture energy of the target image.
畫面能量定義為在單位時間內背光光源LS背光亮度值B(cd/m2 )與畫素內複數液晶分子之液晶穿透率T的乘積的時間積分。總畫面能量我們定義為一個畫框時間背光亮度與穿透率乘積的積分，假如一個畫框由五個時序畫面組成的，因此，總畫面能量可寫成如式(27)所示，五個時序畫面能量的加總。接著，我們定義時序畫面的能量，第一個時序畫面能量，即為背光亮度值B 1與指液晶之穿透率T 的乘積的在時間點TP0-1至時間點TP1-2(即在期間TP1)內的時間積分，可寫成如式(28)所示。同理，第二個時序，第三個時序，第四個時序及第五個時序中時序畫面的能量，可寫成式(29)~(31)。The picture energy is defined as the time integral of the product of the backlight source LS backlight luminance value B (cd/m 2 ) and the liquid crystal transmittance T of the plurality of liquid crystal molecules in the pixel per unit time. The total picture energy is defined as the integral of the product of backlight brightness and transmittance in a frame. If a picture frame consists of five time series pictures, the total picture energy can be written as shown in equation (27), five timings. The sum of the picture energy. Next, we define the energy of the time series picture, the first time series picture energy, that is, the product of the backlight brightness value B 1 and the liquid crystal transmittance T at the time point TP0-1 to the time point TP1-2 (ie during the period) The time integral in TP1) can be written as shown in equation (28). Similarly, the energy of the timing picture in the second timing, the third timing, the fourth timing and the fifth timing can be written as equations (29)~(31).
E =e 1 +e 2 +e 3 +e 4 +e 5 式(27) E = e 1 + e 2 + e 3 + e 4 + e 5 (27)
其中E為總畫面能量，e1至e5為第一至第五時序中時序畫面的能量。分別對應時間點TP0-1~TP1-2、TP1-2~TP2-3、TP2-3~TP3-4、TP3-4~TP4-5、與TP4-5~TP0-1’的五個期間TP1至TP5為第一至第五時序中時序畫面的積分時間，故而不同時序的畫面能量可依照不同時序下背光的顏色與亮度值以及液晶分子的穿透率而將其量化。Where E is the total picture energy, and e1 to e5 are the energy of the time series picture in the first to fifth timings. Five periods TP1 corresponding to time points TP0-1~TP1-2, TP1-2~TP2-3, TP2-3~TP3-4, TP3-4~TP4-5, and TP4-5~TP0-1' respectively Until TP5 is the integration time of the timing pictures in the first to fifth timings, the picture energy of different timings can be quantized according to the color and luminance values of the backlight and the transmittance of the liquid crystal molecules at different timings.
在圖7A之實施例中，由於人眼對於綠色光的靈敏度較高，因此，兩彩色影像D1與D2後的三個單原色影像依序為綠色影像GF、藍色影像BF、以及紅色影像RF。而在其他實施例中，兩彩色影像D1與D2後的三個單原色影像的順序，可依據每一單原色影像之畫面能量佔目標影像之總畫面能量的百分比來決定。例如，兩彩色影像D1與D2後依序於期間TP3~TP5中顯示的三個單原色影像之畫面能量的百分比為遞減。In the embodiment of FIG. 7A, since the human eye is highly sensitive to green light, the three single primary color images after the two color images D1 and D2 are sequentially green image GF, blue image BF, and red image RF. . In other embodiments, the order of the three single primary color images after the two color images D1 and D2 may be determined according to the percentage of the total screen energy of the target image according to the image energy of each single primary color image. For example, the percentage of the picture energy of the three single primary color images displayed in the periods TP3 to TP5 after the two color images D1 and D2 is decremented.
在另一實施例中，在兩彩色影像D1與D2後，顯示於期間TP3之單原色影像之畫面能量的百分比大於顯示於期間TP4之單原色影像之畫面能量的百分比，且顯示於期間TP5之單原色影像之畫面能量的百分比大於顯示於期間TP4之單原色影像之畫面能量的百分比。亦即顯示於期間TP1-TP5之影像的畫面能量百分比雖呈遞減趨勢，但此趨勢卻僅遞減至倒數第二個影像(即顯示於期間TP4之影像)，最後一個影像(即顯示於期間TP5之影像)之畫面能量則會高於倒數第二個影像之畫面能量，此實施例可避免因各彩色影像間之畫面能量差距過大時造成的色分離或閃爍的現象。根據上述，在一畫框期間內，期間TP1~TP5所顯示之影像的畫面能量呈現V曲線，可以理解的是V曲線並非對稱。V型的能量分佈可使每個畫框時間FT之間有一個較暗畫面，近似於插黑的效果，可使人眼見到動態畫面時，色分離的視覺效果降低。In another embodiment, after the two color images D1 and D2, the percentage of the picture energy of the single primary color image displayed during the period TP3 is greater than the percentage of the picture energy of the single primary color image displayed during the period TP4, and is displayed during the period TP5. The percentage of picture energy for a single primary color image is greater than the percentage of picture energy for a single primary color image displayed during period TP4. That is to say, the percentage of the picture energy displayed in the image of the period TP1-TP5 is decreasing, but the trend is only decremented to the second to last image (that is, the image displayed during the period TP4), and the last image is displayed in the period TP5. The image energy of the image is higher than the picture energy of the penultimate image. This embodiment can avoid the phenomenon of color separation or flicker caused by the excessive energy gap between the color images. According to the above, during the frame period, the picture energy of the image displayed during the period TP1 to TP5 exhibits a V curve, and it can be understood that the V curve is not symmetrical. The energy distribution of the V-type can make a darker picture between each frame time FT, which is similar to the effect of inserting black, which can reduce the visual effect of color separation when the human eye sees the dynamic picture.
根據上述，於一畫框時間中，在第一個期間T1內顯示之影像D1的畫面能量最大。當於複數畫框時間分別顯示複數目標影像時，在兩相鄰圖框時間之期間T1之間顯示之影像的畫面能量的曲線會呈現近似V曲線之趨勢，而V曲線趨勢最低點亦可視對畫面品味需求而設定顯示介於彩色影像D2與下一畫框時間之彩色影像D1之間之任一顯示期間均可，且彩色影像D1之畫面能量必定大於其他畫面之畫面能量，可以理解V曲線趨勢並非對稱。According to the above, in the frame time, the image energy of the image D1 displayed in the first period T1 is the largest. When the complex target image is displayed in the plural frame time, the curve of the image energy of the image displayed between the two adjacent frame time periods T1 will show a trend of approximating the V curve, and the lowest point of the V curve trend is also visible. The display quality of the screen can be displayed during any display period between the color image D2 and the color image D1 of the next frame time, and the screen energy of the color image D1 must be greater than the screen energy of other screens, and the V curve can be understood. The trend is not symmetrical.
於另一實施例，畫面能量曲線的最低點之顯示期間距 離兩個最大畫面能量之顯示期間最遠，如圖9所示。此驅動方式近似於脈衝式(Impulse)的驅動方式，可使色分離的現象大幅降低。圖9亦僅例示於一畫框時間FT內顯示D1~D5之畫面能量的示意圖，於其他實施例中，亦可能於一畫框時間FT內顯示D1~D3之畫面能量，且其畫面能量之最低點不一定會與兩個最大畫面能量之顯示期間距離最遠，而呈現非對稱V曲線之趨勢。In another embodiment, the display period of the lowest point of the picture energy curve The farthest from the display period of the two largest picture energies, as shown in Figure 9. This driving method is similar to the Impulse driving method, which greatly reduces the phenomenon of color separation. FIG. 9 is only a schematic diagram showing the picture energy of D1~D5 in a picture frame time FT. In other embodiments, it is also possible to display the picture energy of D1~D3 in a picture frame time FT, and the picture energy thereof The lowest point does not necessarily have the farthest distance from the display period of the two largest picture energies, but presents a trend of asymmetric V-curves.
在另一實施例中，兩個任一顏色的彩色影像D1與D2後接彩色影像D3，如圖7B所示，且D3非單原色影像。D3的背光亮度B
3 mn
計算方式與D1與D2相同。因此，式(18)~(26)可修改如下：
其中，背光亮度值B 3 mn 與穿透率T 3 xy 係用來顯示第3個顯示之影像D3，式(18-1)~(26-1)的等號“=”由近似符號“”取代，此方式所顯示的結果只能接近於目標影像，主要原因是彩色影像D1與D2顯示完後，剩餘的亮 度(P xy -B 1 mn T 1 xy -B 2 mn T 2 xy )並非使用三個單色影像RF，GF與BF顯示完畢，而使用一個接近或等於剩餘畫面的能量的彩色影像D3顯示剩餘的亮度。同理，我們可以推廣至第四個彩色影像D4(如圖7C所示)，或者第五個彩色影像D5(如圖7D所示)…等。關於彩色影像D4/D5之亮度值與穿透率可根據上述計算單元34與減法單元35相似的運算來獲得。這些方法有共同的特徵就是：在兩彩色影像D1與D2後，顯示於期間TP3之彩色影像D3之畫面能量大於顯示於期間T4之彩色影像D4之畫面能量，且顯示於期間TP4之彩色影像D4之畫面能量大於顯示於期間TP5之彩色影像D5之畫面能量。於一較佳實施例中，彩色影像D1之畫面能量至少大於彩色影像D2之畫面能量的五倍，且該彩色影像D1之畫面能量至少佔有該目標影像之總畫面能量的七成。Wherein, the backlight brightness value B 3 mn and the transmittance T 3 xy are used to display the third displayed image D3, and the equal sign "=" of the equations (18-1) to (26-1) is approximated by the symbol " "Replace, the result displayed in this mode can only be close to the target image. The main reason is that after the color images D1 and D2 are displayed, the remaining brightness ( P xy - B 1 mn T 1 xy - B 2 mn T 2 xy ) is not Using three monochromatic images RF, GF and BF are displayed, and a color image D3 that is close to or equal to the energy of the remaining picture is used to display the remaining brightness. Similarly, we can generalize to the fourth color image D4 (see Figure 7C). The fifth color image D5 (shown in FIG. 7D), etc. The brightness value and the transmittance of the color image D4/D5 can be obtained according to an operation similar to the above-described calculation unit 34 and the subtraction unit 35. The common feature of these methods is that after the two color images D1 and D2, the picture energy of the color image D3 displayed during the period TP3 is greater than the picture energy of the color image D4 displayed during the period T4, and is displayed in the color image D4 of the period TP4. The picture energy is greater than the picture energy of the color image D5 displayed during the period TP5. In a preferred embodiment, the picture energy of the color image D1 is at least five times greater than the picture energy of the color image D2, and the picture of the color image D1 can Possession of at least the target screen image of the total energy of Qi Cheng.
在圖7A之實施例中，分別顯示影像D1、D2、GF、BF、與RF之期間TP1、TP2、TP3、TP4與TP5的長度彼此等長。假設一畫框時間的長度為1/60s。由於期間TP1~TP5的長度彼此等長，因此期間TP1~TP5之每一者的長度為1/300s，即整體畫框速率為300Hz。同樣地，在圖7B中，分別顯示彩色影像D1~D3之期間TP1~TP3的程度彼此等長；在圖7C中，分別顯示彩色影像D1~D4之期間TP1~TP4的程度彼此等長；在圖7D中，分別顯示彩色影像D1~D5之期間TP1~TP5的程度彼此等長。In the embodiment of FIG. 7A, the lengths of the periods TP1, TP2, TP3, TP4, and TP5 of the images D1, D2, GF, BF, and RF are respectively displayed as equal to each other. Suppose the length of a frame time is 1/60s. Since the lengths of the periods TP1 to TP5 are equal to each other, the length of each of the periods TP1 to TP5 is 1/300 s, that is, the overall frame rate is 300 Hz. Similarly, in FIG. 7B, the periods TP1 to TP3 of the color images D1 to D3 are respectively displayed to be equal in length; in FIG. 7C, the periods TP1 to TP4 of the color images D1 to D4 are respectively displayed to be equal in length; In FIG. 7D, the periods TP1 to TP5 of the color images D1 to D5 are respectively displayed to be equal in length to each other.
在另一實施例中，如圖8所示，分別顯示彩色影像D1 與D2之期間TP1與TP2的長度彼此等長，且分別顯示影像GF、BF、RF之期間TP3、TP4、TP5的長度彼此等長。尤其是，由於期間TP1與TP2之每一者的長度長於期間TP3、TP4、TP5之每一者的長度。假設一畫框時間的長度為1/60s。在圖8之實施例中，期間TP1、TP2之每一者的長度為1/240s，而期間TP3~TP5之每一者的長度為1/360s，即整體畫框速率為240Hz。於另一實施例中，顯示的彩色影像D1與D2之期間TP1與TP2亦可不等長，因彩色影像D1可能已經顯示目標影像的大部分畫面能量，故而可令期間TP1的長度較剩餘期間為長，而D2次之，剩下的其他畫面可與TP2時間等長或不等長。In another embodiment, as shown in FIG. 8, the color image D1 is displayed separately. The lengths of TP1 and TP2 are equal to each other during the period D2, and the lengths of the periods TP3, TP4, and TP5 of the images GF, BF, and RF are respectively displayed as equal to each other. In particular, since the length of each of the periods TP1 and TP2 is longer than the length of each of the periods TP3, TP4, and TP5. Suppose the length of a frame time is 1/60s. In the embodiment of FIG. 8, the length of each of the periods TP1, TP2 is 1/240s, and the length of each of the periods TP3~TP5 is 1/360s, that is, the overall frame rate is 240Hz. In another embodiment, the periods TP1 and TP2 of the displayed color images D1 and D2 may not be equal. Since the color image D1 may already display most of the picture energy of the target image, the length of the period TP1 may be longer than the remaining period. Long, and D2 is second, the remaining other pictures can be as long or unequal as TP2 time.
另外，本發明之第一紅色亮度值、第一綠色亮度值、以及第一藍色亮度值除了可用上述總量的方式(參照式(7~12))計算出來之外，亦可用其他方式來計算，以下舉例說明。In addition, the first red luminance value, the first green luminance value, and the first blue luminance value of the present invention may be calculated by using other methods (refer to equations (7-12)). Calculation, the following examples.
當擷取單元30根據影像資料來獲得複數畫素資料P xy
之後(各畫素資料包括一紅色畫素值、一綠色畫素值、以及一藍色畫素值)，第一計算單元32可計算該等紅色畫素值、該等綠色畫素值與該等藍色畫素值所構成之矩陣之相關矩陣(correlation matrix)之最大特徵值(eigenvalue)之特徵向量(eigenvector)以得到一第一紅色亮度值、一第一綠色亮度值、以及一第一藍色亮度值。相關矩陣例如為PT
P，P=【】，展開之後可得到下式：
其數值例如但不限於 Its value is for example but not limited to
這樣，可計算出此相關矩陣PT P之三個特徵值分別為5.8299、0.0038、0.1180。這裡我們取5.8299為最大特徵值，並計算其對應的特徵向量為【0.9300,0.9743,1.0000】，並將之轉換為灰階值得到【237.1518,248.4556,255】，並平滑化為【237,248,255】分別對應到紅色在237灰階時的背光亮度、綠色在248灰階時的背光亮度值、以及藍色在255灰階的背光亮度值。Thus, the three characteristic values of the correlation matrix P T P can be calculated to be 5.8299, 0.0038, and 0.1180, respectively. Here we take 5.8299 as the maximum eigenvalue, and calculate its corresponding eigenvector as [0.9300, 0.9743, 1.0000], and convert it into grayscale value to get [237.1518, 248.4556, 255], and smooth it to [237, 248, 255] respectively. Corresponds to the backlight brightness of red at 237 grayscale, the backlight luminance value when green is at 248 grayscale, and the backlight luminance value of blue at 255 grayscale.
需注意者，若是將畫素區分成該既定數量之畫素區塊，即、、符合式(1)~(3)，則各畫素區塊可計算出自己的相關矩陣及其第一紅色亮度值、第一綠色亮度值與第一藍色亮度值。It should be noted that if the pixel is divided into the specified number of pixel blocks, , , According to the formulas (1)~(3), each pixel block can calculate its own correlation matrix and its first red luminance value, the first green luminance value and the first blue luminance value.
接著，對各畫素而言，第一計算單元30可根據紅色畫素值、綠色畫素值與藍色畫素值、以及該畫素所對應之畫素區塊之第一紅色亮度值、第一綠色亮度值、以及第一藍色亮度值來計算出一第一穿透率值。此部分的計算根據式(13)之原則來進行。如下所述，對各畫素而言，第一計算單元30根據(無背光分區)、或(有背光分區)來計算第一穿透率值。Next, for each pixel, the first calculating unit 30 may be based on the red pixel value, the green pixel value and the blue pixel value, and the first red brightness value of the pixel block corresponding to the pixel, The first green brightness value and the first blue brightness value are used to calculate a first transmittance value. The calculation of this part is carried out according to the principle of equation (13). As described below, for each pixel, the first calculating unit 30 is based on (no backlight partition), or (There is a backlight partition) to calculate the first transmittance value.
如此，可計算出第一影像之各畫素之穿透率值以及第一影像之各畫素分區之各原色的亮度值，並依據這些穿透率值以及亮度值來控制顯示面板之顯示陣列以及背光光源來顯示第一影像。由於上述控制方式已於上述實施例詳述，故於此不再贅述。然而需注意者，在本實施例中，背光光源21所發出之光線可具有至少二個不為零之不同等級的亮度，例如第一亮度、第二亮度、第三亮度、…等等。圖10為一般傳統背光亮度、液晶波形、背光與液晶之加乘波形以及效率損失的示意圖，圖11為本實施例之背光亮度、液晶波形、背光與液晶之加乘波形以及效率損失的示意圖。如圖10所示，傳統背光光源僅有開與關兩種亮度，而本實施例之背光光源有例如三種不同的亮度等級。如此，可看見本實施例之效率損失較傳統驅動方式更少，因此，本實施例可使用較少的能量來達到同樣的顯示效果，進而降低成本且節能。此外，本實施例之背光驅動方式可驅動方式亦可減少人眼感到閃爍與過衝(overshooting)的現象，而提升顯示效能。In this way, the transmittance values of the pixels of the first image and the luminance values of the respective primary colors of each pixel partition of the first image can be calculated, and the display array of the display panel is controlled according to the transmittance values and the brightness values. And a backlight source to display the first image. Since the above control method has been described in detail in the above embodiments, it will not be described herein. It should be noted, however, that in the present embodiment, the light emitted by the backlight source 21 may have at least two different levels of brightness that are not zero, such as first brightness, second brightness, third brightness, and the like. 10 is a schematic diagram of general conventional backlight brightness, liquid crystal waveform, backlight and liquid crystal multiplying waveform, and efficiency loss. FIG. 11 is a schematic diagram of backlight brightness, liquid crystal waveform, backlight and liquid crystal multiplying waveform, and efficiency loss of the present embodiment. As shown in FIG. 10, the conventional backlight source has only two kinds of brightness, on and off, and the backlight source of the embodiment has, for example, three different brightness levels. Thus, it can be seen that the efficiency loss of this embodiment is less than that of the conventional driving method. Therefore, the present embodiment can use less energy to achieve the same display effect, thereby reducing cost and saving energy. In addition, the backlight driving mode of the embodiment can also reduce the phenomenon that the human eye feels flickering and overshooting, and improves display performance.
在本實施例中，可有多種方式來使背光光源具有複數不同的亮度，以下舉例說明之。In this embodiment, there are various ways to make the backlight source have a plurality of different brightnesses, as exemplified below.
圖12為本實施例之顯示裝置顯示第一影像、第二影像、第三影像及第四影像的時序示意圖，其中包括三原色(紅、綠、藍)背光光源的波形圖、第一列畫素的穿透率波形圖、最後一列畫素的穿透率波形圖以及背光與最後一列畫素的穿透率的加乘波形圖。需注意者，圖12可對應 至整個背光光源或是只對應背光光源之某一分區，當對應某一分區時，該第一列畫素為該分區所對應之第一列畫素，該最後列畫素為該分區所對應之最後列畫素。12 is a timing diagram showing display of a first image, a second image, a third image, and a fourth image in the display device of the embodiment, including waveform diagrams of the backlight colors of the three primary colors (red, green, and blue), and the first column of pixels. The penetration rate waveform, the transmittance waveform of the last column of pixels, and the multiplied waveform of the transmittance of the backlight and the last column of pixels. Need to pay attention, Figure 12 can correspond To the entire backlight source or only a partition corresponding to the backlight source, when corresponding to a certain partition, the first column of pixels is the first column of pixels corresponding to the partition, and the last column of pixels corresponds to the partition. The last column of pixels.
於此，第一影像為彩色影像，第二影像至第四影像皆為單原色影像，分別為紅色影像、綠色影像與藍色影像。在第一影像中，由於其為彩色影像，故三原色背光光源皆可依影像資料而選擇性開啟。並且三原色背光光源的亮度波形可為階梯狀，而具有例如三種不同亮度的振幅，並且該等振幅係對應至穿透率的大小，即當穿透率大時，振幅亦較大，藉由光源振幅與穿透率相對應的關係，可使顯示裝置的效能提高。此外，背光光源之波形為階梯狀，藉由這樣平滑的改變可減少人眼感到閃爍與過衝的現象，而提升顯示效能。The first image is a color image, and the second image to the fourth image are single primary color images, which are a red image, a green image, and a blue image. In the first image, since it is a color image, the backlights of the three primary colors can be selectively turned on according to the image data. And the brightness waveform of the three primary color backlight sources may be stepped, and has amplitudes of, for example, three different brightnesses, and the amplitudes correspond to the magnitude of the transmittance, that is, when the transmittance is large, the amplitude is also large, by the light source. The relationship between the amplitude and the transmittance can improve the performance of the display device. In addition, the waveform of the backlight source is stepped, and the smooth change can reduce the flicker and overshoot of the human eye, thereby improving display performance.
此外，第一影像至第四影像皆可配合插黑(black frame insertion)技術。例如，在TN液晶插黑時給最大額定電壓，此時液晶穿透率由最高處開始下降至低穿透率，插黑時間由該區的第一列到最後一列為止。當最後一列的最後一個畫素的液晶穿透率最小時，若該時序為第一影像時，背光光源皆關閉(如圖12及圖13中粗虛線框處)，主要目的是避免干擾(Cross talk)至下一色場，同理，其他色彩場也是如此。第二影像為紅色影像，故只有紅色光源開啟，其他光源皆關閉，且紅色光源之波形亦具有不同的振幅而達到不同亮度。第三影像為綠色影像，故只有綠色光源開啟，其他光源皆關閉，且綠色光源之波形亦具有不同 的振幅而達到不同亮度。第四影像為藍色影像，故只有藍色光源開啟，其他光源皆關閉，且藍色光源之波形亦具有不同的振幅而達到不同亮度。In addition, the first image to the fourth image can be combined with black frame insertion technology. For example, when the TN liquid crystal is blacked out, the maximum rated voltage is given, at which time the liquid crystal transmittance decreases from the highest point to the low transmittance, and the black insertion time is from the first column to the last column of the region. When the liquid crystal transmittance of the last pixel in the last column is the smallest, if the timing is the first image, the backlight source is turned off (as shown in the thick dotted frame in FIG. 12 and FIG. 13), the main purpose is to avoid interference (Cross Talk) to the next color field, the same reason, the same is true for other color fields. The second image is a red image, so only the red light source is turned on, the other light sources are turned off, and the waveform of the red light source also has different amplitudes to achieve different brightness. The third image is a green image, so only the green light source is turned on, the other light sources are turned off, and the waveform of the green light source is also different. The amplitude reaches different brightness. The fourth image is a blue image, so only the blue light source is turned on, the other light sources are turned off, and the waveform of the blue light source also has different amplitudes to achieve different brightness.
圖13為本實施例之顯示裝置顯示第一影像、第二影像、第三影像及第四影像的另一時序示意圖，其中包括三原色(紅、綠、藍)背光光源的波形圖、第一列畫素的穿透率波形圖、最後一列畫素的穿透率波形圖以及背光與最後一列畫素的穿透率的加乘波形圖。FIG. 13 is another timing diagram of displaying the first image, the second image, the third image, and the fourth image in the display device of the embodiment, including waveform diagrams of the backlights of the three primary colors (red, green, and blue), and the first column. The penetration rate waveform of the pixel, the transmittance waveform of the last column of pixels, and the multiplied waveform of the transmittance of the backlight and the last column of pixels.
於此，第一影像為彩色影像，第二影像至第四影像皆為單原色影像，分別為紅色影像、綠色影像與藍色影像。與圖12之態樣主要不同在於，圖13所示之背光光源係配合脈寬調變(PWM)技術而達到調光(dimming)效果。藉此得到的整體亮度可如圖14所示，其中剖面線的部分為有亮度，無剖面線的部分係無亮度，其中100%意指原始PWM訊號的振幅，而200%指為原始PWM訊號之振幅的兩倍振幅，以此類推。The first image is a color image, and the second image to the fourth image are single primary color images, which are a red image, a green image, and a blue image. The main difference from the aspect of FIG. 12 is that the backlight source shown in FIG. 13 is matched with a pulse width modulation (PWM) technique to achieve a dimming effect. The overall brightness obtained by this can be as shown in FIG. 14, wherein the portion of the hatching is bright, and the portion without hatching is no brightness, wherein 100% means the amplitude of the original PWM signal, and 200% means the original PWM signal. The amplitude of the amplitude is twice the amplitude, and so on.
本發明並不限於三種亮度等級，圖15顯示隨著背光光源可提供的亮度等級越多，背光光源與液晶的配合效能就越佳。並且，背光光源的亮度等級可與液晶波形成正相關，進而達到高效能。The present invention is not limited to three brightness levels, and Figure 15 shows that the more the brightness level that the backlight source can provide, the better the performance of the backlight source and the liquid crystal. Moreover, the brightness level of the backlight source can be positively correlated with the liquid crystal wave, thereby achieving high performance.
在計算出第一影像之各畫素之穿透率值以及第一影像之各畫素分區之各原色的亮度值之後，可接著計算第二影像之各畫素之穿透率值以及各畫素分區之各原色的亮度值。實施上，第二影像之各畫素之穿透率值以及各畫素 分區之各原色的亮度值之計算方法可沿用第一影像之各畫素之穿透率值以及各畫素分區之各原色的亮度值之計算方法，只是相關矩陣P之數值不同。After calculating the transmittance values of the pixels of the first image and the luminance values of the respective primary colors of the pixel regions of the first image, the transmittance values of the pixels of the second image and the respective paintings may be calculated. The brightness value of each primary color of the prime partition. In practice, the penetration value of each pixel of the second image and each pixel The calculation method of the brightness values of the primary colors of the partition may be performed by using the transmittance values of the pixels of the first image and the brightness values of the respective primary colors of each pixel partition, except that the values of the correlation matrix P are different.
在計算中，請參照式(14)~(16)，對各該畫素而言，第一減法單元33可將紅色畫素值減去第一紅色亮度值與第一穿透率值之乘積以計算出一第一差值，並將綠色畫素值減去第一綠色亮度值與第一穿透率值之乘積以計算出一第二差值，更將藍色畫素值減去第一藍色亮度值與第一穿透率值之乘積以計算出一第三差值。然後，第二計算單元34可計算各畫素區塊之該等第一差值、該等第二差值與該等第三差值所構成之矩陣之相關矩陣之最大特徵值之特徵向量以得到各畫素區塊之一第二紅色亮度值、一第二綠色亮度值、以及一第二藍色亮度值。如此，P矩陣變為由式(14)~(16)之左邊項所構成的矩陣，之後再算出該P矩陣之相關矩陣之最大特徵值之特徵向量即可得到第二紅色亮度值、第二綠色亮度值、以及第二藍色亮度值。In the calculation, please refer to equations (14)-(16). For each pixel, the first subtraction unit 33 can subtract the red pixel value from the product of the first red luminance value and the first transmittance value. Calculating a first difference, and subtracting the green pixel value by the product of the first green brightness value and the first transmittance value to calculate a second difference, and subtracting the blue pixel value from the first A product of a blue luminance value and a first transmittance value to calculate a third difference. Then, the second calculating unit 34 may calculate the feature vectors of the first eigenvalues of the respective pixel blocks, the second eigenvalues of the matrix of the second difference value and the matrix of the third difference values, A second red luminance value, a second green luminance value, and a second blue luminance value are obtained for each of the pixel blocks. Thus, the P matrix becomes a matrix composed of the left term of the equations (14) to (16), and then the eigenvector of the largest eigenvalue of the correlation matrix of the P matrix is calculated to obtain the second red luminance value. Second green brightness value And the second blue brightness value .
然後，對各畫素而言，第二計算單元34根據第一差值、第二差值與第三差值、以及該畫素所對應之畫素區塊之第二紅色亮度值、第二綠色亮度值、以及第二藍色亮度值來計算出一第二穿透率值。此部分的計算根據式(17)之原則來進行。如下所述，對各畫素而言，第二計算單元34根據(無背光分 區)、或(有背光分區)來計算第二穿透率值。Then, for each pixel, the second calculating unit 34 is configured to: according to the first difference, the second difference and the third difference, and the second red brightness value of the pixel block corresponding to the pixel, the second The green brightness value and the second blue brightness value are used to calculate a second transmittance value. The calculation of this part is carried out according to the principle of equation (17). As described below, for each pixel, the second calculation unit 34 is based on (no backlight partition), or (There is a backlight partition) to calculate the second transmittance value.
如此，可計算出第二影像之各畫素之穿透率值以及第二影像之各畫素分區之各原色的亮度值。之後可依據這些穿透率值以及亮度值來控制顯示面板之顯示陣列以及背光光源來顯示第二影像。In this way, the transmittance values of the pixels of the second image and the luminance values of the respective primary colors of the pixel regions of the second image can be calculated. The display array of the display panel and the backlight source can then be controlled to display the second image based on the transmittance values and the brightness values.
需注意者，本實施例除了第二影像可使用上述特徵向量之計算方法之外，第三影像、第四影像、…亦可使用特徵向量之計算方法。另外，第二影像亦可不使用特徵向量之計算方法，而是使用如式(18)~(26)之原則來計算出亮度值與穿透率值。It should be noted that, in addition to the calculation method of the above feature vector, the third image, the fourth image, and the like may be used in the embodiment. In addition, the second image may not use the calculation method of the feature vector, but use the principles of equations (18) to (26) to calculate the luminance value and the transmittance value.
於其他實施例中，請參照式(13)，當一張影像的顏色集中於特定色系時，表示某種顏色佔目標影像的比例相當低。如果或或相當小，則T 1 xy 也會相對應的相當小，又第一影像係T1與B1加乘後的結果，如果T 1 xy 相當小，則第一影像的畫素值也相對應的變得很小，此代表於第一影像中有太多畫素值過小導致第一張影像的畫面能量過小。In other embodiments, please refer to Equation (13), when the color of an image is concentrated in a specific color system, it means that the ratio of a certain color to the target image is quite low. in case or or If it is quite small, T 1 xy will also be relatively small, and the result of multiplying the first image system T1 and B1. If T 1 xy is relatively small, the pixel value of the first image will also become corresponding. Very small, this means that too many pixel values in the first image are too small to cause the picture energy of the first image to be too small.
因此，當一張影像的顏色集中特定色系時，第一計算單元可更依據至少一預設值判斷相關矩陣之複數主效應矩陣值(即上述之Corrr 、Corgg 、Corbb )之至少其中之一以判斷第一紅色亮度值、第一綠色亮度值、或第一藍色亮 度值是否過小，並據此來修正第一影像畫面的T1與B1的數值，例如選擇不開啟某一比例相當低的該顏色的背光。Therefore, when the color of an image is concentrated in a specific color system, the first calculating unit may further determine at least a plurality of main effect matrix values (ie, Cor rr , Cor gg , Cor bb ) of the correlation matrix according to at least one preset value. One of them determines whether the first red brightness value, the first green brightness value, or the first blue brightness value is too small, and accordingly corrects the values of T1 and B1 of the first image frame, for example, selecting not to open a certain ratio. Quite a low backlight for this color.
以紅顏色比例較低為例，主效應矩陣值Corrr
之判斷方式可例如下式所示：，其中10%為預設值。當判斷出Corrr
的比例小於10%時，選擇於第一影像將第一紅色亮度值設定為零(即背光光源不提供紅色光)，則式(13)會修正如下所示：
亦即於第一影像時，背光僅提供紅色以外的光源。紅色則於其後的第二或接續影像中顯示。此代表，可於第一影像顯示出佔目標影像比重較大的該些顏色能量，亦即於第一影像就可以顯示出更接近目標影像能量的影像，其後的剩餘畫面能量比例相當低，其效果也可以近似於插黑畫面，進而可提升顯示畫面品質，降低色分離的問題。That is, in the first image, the backlight provides only a light source other than red. Red is displayed in the second or subsequent image after it. The representative image can display the color energy that is larger than the target image in the first image, that is, the image that is closer to the target image energy can be displayed on the first image, and the remaining image energy ratio is relatively low. The effect can also be approximated by inserting a black screen, thereby improving the quality of the display screen and reducing the problem of color separation.
於上述係以紅顏色比例較低為例，而綠色或是藍色之主效應矩陣值Corgg 、Corbb 之判斷可依此類推，於此不再贅述。For example, the ratio of the red color ratio is lower, and the judgments of the main effect matrix values Cor gg and Cor bb of green or blue can be deduced by analogy, and will not be described herein.
本實施例不僅可使第一影像之畫面能量至少佔有目標影像之總畫面能量的百分之七十；較佳者，可至少佔有目標影像之總畫面能量的百分之八十。In this embodiment, not only the picture energy of the first image is at least 70% of the total picture energy of the target image; preferably, it can occupy at least 80% of the total picture energy of the target image.
此外，就單一色彩來說，當該單一色彩佔目標影像的 比例達55%以上時，且以上述方式選擇設定小於10%比例的顏色不開啟時，第一影像之畫面能量之一色彩能量可至少佔有目標影像之該色彩能量的百分之八十五。舉例來說，當紅顏色佔10%以下(即)，且藍色佔目標影像55%以上(即)時，以上述修正的式(13-1)來看，表示第一影像中，藍色的比例相當高，紅色的比例相當低，依照上述方式將紅色背光源關閉，開啟綠光與藍光，此種方式相較紅色，綠色與藍色都開啟效果更佳，其第一影像中之藍色能量可更佳的佔目標影像的85%以上。In addition, in the case of a single color, when the ratio of the single color to the target image is more than 55%, and the color selected in the above manner is less than 10%, the color energy of the image energy of the first image may be At least eighty-five percent of the color energy of the target image. For example, when the red color accounts for less than 10% (ie ), and blue accounts for more than 55% of the target image (ie In the case of the above modified formula (13-1), it is indicated that the ratio of blue in the first image is relatively high, and the ratio of red is relatively low. The red backlight is turned off according to the above manner, and green light and blue light are turned on. Compared with red, green and blue are better in this way, and the blue energy in the first image can better account for more than 85% of the target image.
綜上所述，本實施例之顯示裝置藉由特徵值與特徵向量之計算，可讓第一影像之背光顏色最接近目標影像的顏色，進而讓液晶的穿透率最大，大部分的能量都集中在第一畫面，其餘畫面變暗，而使色分離的現象最小。In summary, the display device of the embodiment can calculate the backlight color of the first image closest to the color of the target image by calculating the feature value and the feature vector, thereby maximizing the transmittance of the liquid crystal, and most of the energy is Focusing on the first screen, the rest of the picture becomes darker, and the phenomenon of color separation is minimized.
以上所述僅為舉例性，而非為限制性者。任何未脫離本發明之精神與範疇，而對其進行之等效修改或變更，均應包含於後附之申請專利範圍中。The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.
1‧‧‧顯示裝置1‧‧‧ display device
10‧‧‧處理器10‧‧‧ processor
11‧‧‧顯示面板11‧‧‧ display panel
20‧‧‧顯示陣列20‧‧‧Display array
200‧‧‧畫素200‧‧ ‧ pixels
21‧‧‧背光單元21‧‧‧Backlight unit
22‧‧‧驅動單元22‧‧‧Drive unit
23‧‧‧背光控制單元23‧‧‧Backlight control unit
30‧‧‧擷取單元30‧‧‧Capture unit
31‧‧‧劃分單元31‧‧‧Dividing unit
32、34、36‧‧‧計算單元32, 34, 36‧‧‧ calculation unit
33、35‧‧‧減法單元33, 35‧‧‧ Subtraction unit
B‧‧‧亮度值B‧‧‧Brightness value
BF‧‧‧藍色影像BF‧‧‧Blue Image
DIN ‧‧‧影像資料D IN ‧‧‧Image data
D1、D2‧‧‧彩色影像D1, D2‧‧‧ color image
、、‧‧‧紅色、綠色、藍色畫素值程度 , , ‧‧‧Red, green, blue pixel values
、、‧‧‧對應每一紅色、綠色、藍色畫素值程度的畫素數量 , , ‧‧‧Number of pixels corresponding to each red, green, and blue pixel value
FT‧‧‧畫框時間FT‧‧‧ frame time
GF‧‧‧綠色影像GF‧‧ Green Image
LG‧‧‧導光板LG‧‧‧Light guide plate
LS‧‧‧背光光源LS‧‧‧Backlight source
LSB‧‧‧藍色背光光源LSB‧‧‧Blue Backlight Source
LSG‧‧‧綠色背光光源LSG‧‧‧Green Backlight Source
LSR‧‧‧紅色背光光源LSR‧‧‧Red Backlight Source
m‧‧‧同一列上的畫素區塊數量m‧‧‧Number of pixel blocks in the same column
n‧‧‧同一行上的畫素區塊數量n‧‧‧Number of pixel blocks on the same line
P xy ‧‧‧畫素資料 P xy ‧‧‧ pixel data
RF‧‧‧紅色影像RF‧‧‧Red Image
S40~S51‧‧‧方法步驟S40~S51‧‧‧ method steps
T‧‧‧穿透率值T‧‧‧ penetration value
TP1~TP5‧‧‧期間TP1~TP5‧‧‧
TP 0-1、TP 0-1’、TP 1-2、TP 2-3、TP 3-4、TP 4-5‧‧‧時間點TP 0-1, TP 0-1', TP 1-2, TP 2-3, TP 3-4, TP 4-5‧‧‧ time point
圖1表示根據本發明實施例之顯示裝置；圖2A表示圖1中顯示裝置之顯示面板示意圖；圖2B表示圖2中顯示面板之背光單元示意圖； 圖3表示圖1中顯示裝置之處理器；圖4A-4B表示根據本發明實施例，用於顯示裝置之顯示方法流程圖；圖5表示顯示陣列中m*n個畫素區塊示意圖；圖6表示統計學上的統計矩示意圖，以計算紅色、綠色、與藍色畫素值之總量；圖7A至圖7D表示根據本發明一實施例顯示兩個彩色影像與三個單原色影像之時序圖；圖8表示根據本發明另一實施例顯示兩個彩色影像與三個單原色影像之時序圖；圖9係表示畫面能量之V曲線；圖10為一般傳統背光亮度、液晶波形、背光與液晶之加乘波形以及效率損失的示意圖；圖11為本發明一較佳實施例之背光亮度、液晶波形、背光與液晶之加乘波形以及效率損失的示意圖；圖12為本實施例之顯示裝置顯示第一影像、第二影像、第三影像及第四影像的時序示意圖；圖13為本實施例之顯示裝置顯示第一影像、第二影像、第三影像及第四影像的另一時序示意圖；圖14顯示圖13之背光光源之整體亮度；以及圖15顯示隨著背光光源可提供的亮度等級越多，背光光源與液晶的配合效能就越佳。1 shows a display device according to an embodiment of the present invention; FIG. 2A is a schematic view of a display panel of the display device of FIG. 1; 3 is a view showing a processor of the display device of FIG. 1; FIGS. 4A-4B are flowcharts showing a display method for a display device according to an embodiment of the present invention; FIG. 5 is a view showing a m*n pixel block in a display array; 6 represents a statistical statistical moment diagram for calculating the total amount of red, green, and blue pixel values; and FIGS. 7A-7D illustrate displaying two color images and three single primary color images according to an embodiment of the invention. FIG. 8 is a timing chart showing two color images and three single primary color images according to another embodiment of the present invention; FIG. 9 is a V curve of the picture energy; FIG. 10 is a general conventional backlight brightness, liquid crystal waveform, and backlight. FIG. 11 is a schematic diagram of backlight luminance, liquid crystal waveform, backlight and liquid crystal multiplication waveform, and efficiency loss according to a preferred embodiment of the present invention; FIG. 12 is a schematic diagram of the present embodiment; The device displays a timing diagram of the first image, the second image, the third image, and the fourth image. FIG. 13 shows the first image, the second image, the third image, and the fourth image in the display device of the embodiment. Another timing diagram; FIG. 14 shows the overall brightness of the backlight 13 of the light source; and FIG. 15 shows that as the backlight light source can provide more brightness levels, and the liquid crystal backlight light source with the better the performance.
BF‧‧‧藍色影像BF‧‧‧Blue Image
D1、D2‧‧‧彩色影像D1, D2‧‧‧ color image
FT‧‧‧畫框時間FT‧‧‧ frame time
GF‧‧‧綠色影像GF‧‧ Green Image
RF‧‧‧紅色影像RF‧‧‧Red Image
TP1~TP5‧‧‧期間TP1~TP5‧‧‧
TP0-1、TP0-1’、TP1-2、TP2-3、TP3-4、TP4-5‧‧‧時間點TP0-1, TP0-1', TP1-2, TP2-3, TP3-4, TP4-5‧‧‧ time points
Claims (15)
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| TW101148307A TWI466088B (en) | 2012-01-06 | 2012-12-19 | Display apparatus |
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| TW101100563 | 2012-01-06 | ||
| TW101148307A TWI466088B (en) | 2012-01-06 | 2012-12-19 | Display apparatus |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030011614A1 (en) * | 2001-07-10 | 2003-01-16 | Goh Itoh | Image display method |
| TW200844976A (en) * | 2006-12-21 | 2008-11-16 | Sharp Kk | Transmissive-type liquid crystal display device |
| TW201015523A (en) * | 2008-10-09 | 2010-04-16 | Univ Nat Chiao Tung | Displaying method of field sequential color display using two color fields |
| TW201320053A (en) * | 2007-11-05 | 2013-05-16 | Au Optronics Corp | Display method for LCD device with reduced color break-up |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030011614A1 (en) * | 2001-07-10 | 2003-01-16 | Goh Itoh | Image display method |
| TW200844976A (en) * | 2006-12-21 | 2008-11-16 | Sharp Kk | Transmissive-type liquid crystal display device |
| TW201320053A (en) * | 2007-11-05 | 2013-05-16 | Au Optronics Corp | Display method for LCD device with reduced color break-up |
| TW201015523A (en) * | 2008-10-09 | 2010-04-16 | Univ Nat Chiao Tung | Displaying method of field sequential color display using two color fields |
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