TWI505255B - Pixel structure - Google Patents

Pixel structure Download PDF

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TWI505255B
TWI505255B TW102127519A TW102127519A TWI505255B TW I505255 B TWI505255 B TW I505255B TW 102127519 A TW102127519 A TW 102127519A TW 102127519 A TW102127519 A TW 102127519A TW I505255 B TWI505255 B TW I505255B
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pixel
sub
color
display
display mode
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TW102127519A
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TW201505018A (en
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Syuan Ling Yang
Jiang Shih Chyuan Fan
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Au Optronics Corp
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畫素結構Pixel structure
本發明是有關於一種畫素結構。The present invention relates to a pixel structure.
隨著顯示技術的演進,具有高畫質、空間利用率佳、無輻射等特性的平面顯示器(Flat Panel Display,FPD)已成為顯示器的主流。在平面顯示器的普及下,消費者除了輕、薄、短、小的訴求之外,更期望平面顯示器所顯示出的影像的色彩接近實物真實的色彩,也就是達到所謂的高色彩重現性(color reproduction)。為了滿足消費者的需求,業者紛紛投入高色彩重現技術的研究與開發。With the evolution of display technology, flat panel displays (FPDs) with high image quality, good space utilization, and no radiation have become the mainstream of displays. In the popularity of flat-panel displays, in addition to the demands of light, thin, short, and small, consumers expect that the color of the image displayed on the flat panel display is close to the real color of the real thing, that is, the so-called high color reproducibility ( Color reproduction). In order to meet the needs of consumers, the industry has invested in the research and development of high-color reproduction technology.
現有的高色彩重現技術通常藉由置換平面顯示器的背光源以及彩色濾光膜去實現高色彩重現性。舉例而言,透過選用色飽和度(color saturation,以下簡稱飽和度)高的彩色濾光膜,可提升平面顯示器的色域,進而使平面顯示器能夠顯示出接近實物真實的色彩。然而,高飽和度的彩色濾光膜的光穿透率相對低,因此,若欲在高飽和度下維持顯示畫面一定的亮度,則勢必造成背 光源功耗的增加。隨著環保意識的崛起及節能減碳的訴求,平面顯示器的功耗勢必會被要求進一步地降低。是以,如何兼顧到飽和度以及光穿透率,實為研發人員亟欲解決的議題之一。Existing high color reproduction techniques typically achieve high color reproducibility by replacing the backlight of a flat panel display with a color filter. For example, by using a color filter with a high color saturation (saturation), the color gamut of a flat panel display can be improved, thereby enabling the flat panel display to display a real color close to the real thing. However, the high-saturation color filter film has a relatively low light transmittance, and therefore, if a certain brightness of the display image is to be maintained at a high saturation, it is bound to cause a back The power consumption of the light source is increased. With the rise of environmental awareness and the demand for energy saving and carbon reduction, the power consumption of flat panel displays is bound to be further reduced. Therefore, how to balance the saturation and the light transmittance is one of the topics that developers are eager to solve.
本發明提供一種畫素結構,其能夠提供好的飽和度以及光穿透率。The present invention provides a pixel structure capable of providing good saturation and light transmittance.
本發明的一種畫素結構,其包括顯示第一色彩的第一子畫素結構、顯示第二色彩的第二子畫素結構、顯示具有第一飽和度的第三色彩的第三子畫素結構以及顯示具有第二飽和度的第三色彩的第四子畫素結構,其中第一飽和度不同於第二飽和度。第一子畫素結構、第二子畫素結構、第三子畫素結構以及第四子畫素結構彼此並列。在第一顯示模式下,第三子畫素結構與第四子畫素結構僅有一者被開啟,而在第二顯示模式下,第三子畫素結構與第四子畫素結構兩者都被開啟,其中第一色彩預定顯示的灰階為L1,第二色彩預定顯示的灰階為L2,第三色彩預定顯示的灰階為L3,L1、L2、L3的平均值為Ave(L1,L2,L3),L1、L2、L3分別與平均值Ave(L1,L2,L3)的差值的絕對值為|Li -Ave(L1,L2,L3)| i =1 ~3 ,而畫素結構的總灰階數為L0時,L1、L2、L3符合下列關係式(1)則以第二顯示模式進行顯示: A pixel structure of the present invention includes a first sub-pixel structure displaying a first color, a second sub-pixel structure displaying a second color, and a third sub-pixel displaying a third color having a first saturation And a fourth sub-pixel structure displaying a third color having a second saturation, wherein the first saturation is different from the second saturation. The first sub-pixel structure, the second sub-pixel structure, the third sub-pixel structure, and the fourth sub-pixel structure are juxtaposed to each other. In the first display mode, only one of the third sub-pixel structure and the fourth sub-pixel structure is turned on, and in the second display mode, both the third sub-pixel structure and the fourth sub-pixel structure are Is turned on, wherein the gray scale of the first color predetermined display is L1, the gray scale of the second color predetermined display is L2, the gray scale of the third color predetermined display is L3, and the average value of L1, L2, L3 is Ave (L1, L2, L3), the absolute value of the difference between L1, L2, and L3 and the average value Ave (L1, L2, L3) is |L i -Ave(L1, L2, L3)| i = 1 ~ 3 , and draws When the total gray level of the prime structure is L0, L1, L2, and L3 conform to the following relation (1) and are displayed in the second display mode:
在本發明的一實施例中,上述的第三子畫素結構的面積 與第四子畫素結構的面積總和等於第一子畫素結構的面積或是第二子畫素結構的面積。In an embodiment of the invention, the area of the third sub-pixel structure is The sum of the areas of the fourth sub-pixel structure is equal to the area of the first sub-pixel structure or the area of the second sub-pixel structure.
在本發明的一實施例中,上述的第三子畫素結構與第四子畫素結構分別獨立驅動。In an embodiment of the invention, the third sub-pixel structure and the fourth sub-pixel structure are independently driven.
在本發明的一實施例中,上述的第一色彩、第二色彩以及第三色彩分別為紅色、藍色與綠色。In an embodiment of the invention, the first color, the second color, and the third color are red, blue, and green, respectively.
在本發明的一實施例中,上述的第一飽和度大於第二飽和度。In an embodiment of the invention, the first saturation is greater than the second saturation.
在本發明的一實施例中,上述在相同顯示灰階下,第三子畫素結構的穿透率低於第四子畫素結構的穿透率。In an embodiment of the invention, the transmittance of the third sub-pixel structure is lower than the transmittance of the fourth sub-pixel structure under the same display gray scale.
在本發明的一實施例中,上述的第三子畫素結構的面積為第四子畫素結構的面積的40%至60%。In an embodiment of the invention, the area of the third sub-pixel structure is 40% to 60% of the area of the fourth sub-pixel structure.
在本發明的一實施例中,上述的L1、L2、L3不符合關係式(1)時,畫素結構以第一顯示模式與第二顯示模式其中一者進行顯示。In an embodiment of the invention, when the L1, L2, and L3 do not conform to the relation (1), the pixel structure is displayed in one of the first display mode and the second display mode.
在本發明的一實施例中,上述的第一顯示模式為開啟第三子畫素結構並且關閉第四子畫素結構。In an embodiment of the invention, the first display mode is to turn on the third sub-pixel structure and turn off the fourth sub-pixel structure.
在本發明的一實施例中,上述的第一子畫素結構、第二子畫素結構、第三子畫素結構與第四子畫素結構分別具有第一彩色濾光圖案、第二彩色濾光圖案、第三彩色濾光圖案以及第四彩色濾光圖案。In an embodiment of the invention, the first sub-pixel structure, the second sub-pixel structure, the third sub-pixel structure and the fourth sub-pixel structure respectively have a first color filter pattern and a second color. a filter pattern, a third color filter pattern, and a fourth color filter pattern.
本發明的一種畫素結構的顯示方法,其包括以下步驟。 首先,以上述的畫素結構進行初始顯示模式,其中初始顯示模式為第一顯示模式與第二顯示模式其中一者。其次,讀取畫素結構的第一色彩、第二色彩以及第三色彩預定顯示的灰階,其中第一色彩預定顯示的灰階為L1,第二色彩預定顯示的灰階為L2,第三色彩預定顯示的灰階為L3,而畫素結構的總灰階數為L0。接著,計算L1、L2、L3的平均值Ave(L1,L2,L3)。再計算L1、L2、L3分別與平均值Ave(L1,L2,L3)的差值的絕對值:|Li -Ave(L1,L2,L3)| i =1 ~3 。然後,判定L1、L2、L3是否符合關係式(1):|Li -Ave(L1,L2,L3)| i =1 ~3 5%×L0。若L1、L2、L3符合關係式(1)則以第二顯示模式進行顯示,若L1、L2、L3不符合關係式(1)則繼續以初使顯示模式進行顯示。A display method of a pixel structure of the present invention includes the following steps. First, the initial display mode is performed in the above-described pixel structure, wherein the initial display mode is one of the first display mode and the second display mode. Next, the first color, the second color, and the gray scale of the third color predetermined display are read, wherein the gray scale of the first color predetermined display is L1, and the gray scale of the second color predetermined display is L2, third The color preset display has a gray scale of L3, and the total gray scale of the pixel structure is L0. Next, the average value Ave (L1, L2, L3) of L1, L2, and L3 is calculated. The absolute value of the difference between L1, L2, and L3 and the average value Ave (L1, L2, L3) is calculated: |L i -Ave(L1, L2, L3)| i = 1 ~ 3 . Then, it is determined whether L1, L2, and L3 satisfy the relationship (1): |L i -Ave(L1, L2, L3)| i = 1 ~ 3 5% × L0. If L1, L2, and L3 match the relational expression (1), the display is performed in the second display mode. If L1, L2, and L3 do not conform to the relational expression (1), the display mode is continued in the initial display mode.
在本發明的一實施例中,上述的初使顯示模式為第一顯示模式,且判定L1、L2、L3不符合關係式(1),則繼續以第一顯示模式進行顯示。In an embodiment of the invention, the initial display mode is the first display mode, and if it is determined that L1, L2, and L3 do not conform to the relation (1), the display is continued in the first display mode.
在本發明的一實施例中,上述的初使顯示模式為第二顯示模式,且判定L1、L2、L3不符合關係式(1),則繼續以第二顯示模式進行顯示。In an embodiment of the invention, the initial display mode is the second display mode, and if it is determined that L1, L2, and L3 do not conform to the relation (1), the display is continued in the second display mode.
基於上述,本發明的畫素結構包括顯示相同的第三色彩但不同飽和度的第三子畫素結構以及第四子畫素結構。透過同時開啟第三子畫素結構及第四子畫素結構,可藉由飽和度相對低但光穿透率相對高的子畫素結構去補償畫素結構整體的光穿透率或是藉由飽和度相對高但光穿透率相對低的子畫素結構去補償畫素 結構整體的顯示色彩,進而使畫素結構能夠提供所需的飽和度以及光穿透率。Based on the above, the pixel structure of the present invention includes a third sub-pixel structure and a fourth sub-pixel structure that display the same third color but different saturation. By simultaneously turning on the third sub-pixel structure and the fourth sub-pixel structure, the sub-pixel structure with relatively low saturation but relatively high light transmittance can compensate the overall light transmittance of the pixel structure or borrow Sub-pixel structure compensated by a sub-pixel structure with relatively high saturation but relatively low light transmittance The overall display color of the structure allows the pixel structure to provide the desired saturation and light transmittance.
為讓本發明的上述特徵和優點能更明顯易懂,下文特舉實施例,並配合所附圖式作詳細說明如下。The above described features and advantages of the invention will be apparent from the following description.
10‧‧‧畫素結構10‧‧‧ pixel structure
12‧‧‧第一子畫素結構12‧‧‧ First subpixel structure
14‧‧‧第二子畫素結構14‧‧‧Second subpixel structure
16‧‧‧第三子畫素結構16‧‧‧ Third sub-pixel structure
18‧‧‧第四子畫素結構18‧‧‧ fourth sub-pixel structure
D1‧‧‧方向D1‧‧ Direction
S50、S100、S200、S300、S400、S500A‧‧‧步驟S50, S100, S200, S300, S400, S500A‧‧‧ steps
圖1是依照本發明的一實施例的一種畫素結構的上視示意圖。1 is a top plan view of a pixel structure in accordance with an embodiment of the present invention.
圖2是依照本發明的一實施例的一種判別畫素結構的顯示模式的流程圖。2 is a flow chart of a display mode for discriminating a pixel structure, in accordance with an embodiment of the present invention.
圖1是依照本發明的一實施例的一種畫素結構的上視示意圖。請參照圖1,本實施例的畫素結構10包括第一子畫素結構12、第二子畫素結構14、第三子畫素結構16以及第四子畫素結構18,其中第一子畫素結構12、第二子畫素結構14、第三子畫素結構16以及第四子畫素結構18彼此並列。在實際應用中,應用本實施例的畫素結構10的顯示器可能包括多個畫素結構10,且這些畫素結構10例如是以陣列的方式排列,以使應用此畫素結構10的顯示器達成面的顯示,並且畫素結構10可進一步地包括主動元件以及顯示元件。所述顯示器例如可以是液晶顯示器、電濕潤顯 示器、電泳顯示器或是其他顯示器。1 is a top plan view of a pixel structure in accordance with an embodiment of the present invention. Referring to FIG. 1, the pixel structure 10 of the present embodiment includes a first sub-pixel structure 12, a second sub-pixel structure 14, a third sub-pixel structure 16, and a fourth sub-pixel structure 18, wherein the first sub- The pixel structure 12, the second sub-pixel structure 14, the third sub-pixel structure 16, and the fourth sub-pixel structure 18 are juxtaposed to each other. In practical applications, the display to which the pixel structure 10 of the present embodiment is applied may include a plurality of pixel structures 10, and the pixel structures 10 are arranged, for example, in an array manner, so that the display to which the pixel structure 10 is applied is achieved. The display of the face, and the pixel structure 10 may further include an active component and a display component. The display can be, for example, a liquid crystal display, an electrowetting display Display, electrophoretic display or other display.
具體地,本實施例的第一子畫素結構12與第二子畫素結構14例如分別具有矩形輪廓,其長邊沿方向D1延伸。同時,第三子畫素結構16以及第四子畫素結構18位於第一子畫素結構12與第二子畫素結構14之間,並且兩者沿方向D1排列,但本發明不限於此。第一子畫素結構12、第二子畫素結構14、第三子畫素結構16以及第四子畫素結構18的排列方式可視設計需求而改變。Specifically, the first sub-pixel structure 12 and the second sub-pixel structure 14 of the present embodiment have, for example, rectangular outlines each having a long side extending in the direction D1. Meanwhile, the third sub-pixel structure 16 and the fourth sub-pixel structure 18 are located between the first sub-pixel structure 12 and the second sub-pixel structure 14, and both are arranged in the direction D1, but the present invention is not limited thereto. . The arrangement of the first sub-pixel structure 12, the second sub-pixel structure 14, the third sub-pixel structure 16, and the fourth sub-pixel structure 18 may vary depending on design requirements.
第一子畫素結構12適於顯示第一色彩,第二子畫素結構14適於顯示第二色彩,第三子畫素結構16適於顯示第三色彩,而第四子畫素結構18也適於顯示第三色彩,其中第三子畫素結構16顯示的第三色彩具有第一飽和度,而第四子畫素結構18顯示的第三色彩具有第二飽和度,且第一飽和度不同於第二飽和度。換言之,本實施例的第三子畫素結構16以及第四子畫素結構18顯示相同的色彩(第三色彩)但具有不同的飽和度。The first sub-pixel structure 12 is adapted to display a first color, the second sub-pixel structure 14 is adapted to display a second color, the third sub-pixel structure 16 is adapted to display a third color, and the fourth sub-pixel structure 18 Also suitable for displaying a third color, wherein the third color displayed by the third sub-pixel structure 16 has a first saturation, and the third color displayed by the fourth sub-pixel structure 18 has a second saturation, and the first saturation The degree is different from the second saturation. In other words, the third sub-pixel structure 16 and the fourth sub-pixel structure 18 of the present embodiment display the same color (third color) but have different saturations.
具體地,本實施例的第一子畫素結構12、第二子畫素結構14、第三子畫素結構16與第四子畫素結構18例如分別具有第一彩色濾光圖案(未繪示)、第二彩色濾光圖案(未繪示)、第三彩色濾光圖案(未繪示)以及第四彩色濾光圖案(未繪示)。換言之,本實施例的畫素結構10例如是透過彩色濾光圖案的設置來實現全彩化。因此,畫素結構10可以應用於適於透過彩色濾光圖案來實現全彩化的顯示器。Specifically, the first sub-pixel structure 12, the second sub-pixel structure 14, the third sub-pixel structure 16, and the fourth sub-pixel structure 18 of the embodiment respectively have, for example, a first color filter pattern (not drawn The second color filter pattern (not shown), the third color filter pattern (not shown), and the fourth color filter pattern (not shown). In other words, the pixel structure 10 of the present embodiment achieves full coloring by, for example, setting the color filter pattern. Therefore, the pixel structure 10 can be applied to a display suitable for realizing full color through a color filter pattern.
在本實施例中,第一飽和度例如是大於第二飽和度。一 般來說,以彩色濾光圖案來實現全彩化效果時,彩色濾光圖案中的顏料或是染料的濃度會決定子畫素結構所顯示的色飽和度與光穿透率。在第三子畫素結構16以及第四子畫素結構18具有相同的面積下,如果第一飽和度大於第二飽和度,則第三子畫素結構16的穿透率會低於第四子畫素結構18的光穿透率。In this embodiment, the first saturation is, for example, greater than the second saturation. One Generally speaking, when the color filter pattern is used to achieve the full color effect, the concentration of the pigment or dye in the color filter pattern determines the color saturation and light transmittance displayed by the sub-pixel structure. When the third sub-pixel structure 16 and the fourth sub-pixel structure 18 have the same area, if the first saturation is greater than the second saturation, the third sub-pixel structure 16 has a lower transmittance than the fourth. The light transmittance of the sub-pixel structure 18.
在這樣的設計下,當第三子畫素結構16開啟而第四子畫素結構18不開啟時,顯示畫面所呈現的顯示色彩可以呈現較高的飽和度。當第四子畫素結構18開啟而第三子畫素結構16不開啟時,顯示畫面可以呈現較高的光穿透率。另外,當第三子畫素結構16以及第四子畫素結構18皆開啟時,光穿透率相對高的第四子畫素結構18能夠補償光穿透率相對低的第三子畫素結構16的光穿透率,且飽和度相對高的第三子畫素結構16亦能夠補償飽和度相對低的第四子畫素結構18的色飽和度。因此,畫素結構10在第三色彩的顯示效果上可以藉由多種顯示模式來提供多種顯示效果。如此一來,畫素結構10可以根據顯示畫面的需求提供理想的飽和度以及光穿透率。Under such a design, when the third sub-pixel structure 16 is turned on and the fourth sub-pixel structure 18 is not turned on, the display color presented by the display screen can exhibit a higher saturation. When the fourth sub-pixel structure 18 is turned on and the third sub-pixel structure 16 is not turned on, the display screen can exhibit a higher light transmittance. In addition, when the third sub-pixel structure 16 and the fourth sub-pixel structure 18 are both turned on, the fourth sub-pixel structure 18 having a relatively high light transmittance can compensate for the third sub-pixel with relatively low light transmittance. The third sub-pixel structure 16 of the structure 16 having a light transmittance and a relatively high saturation can also compensate for the color saturation of the fourth sub-pixel structure 18 having a relatively low saturation. Therefore, the pixel structure 10 can provide various display effects by various display modes in the display effect of the third color. In this way, the pixel structure 10 can provide ideal saturation and light transmittance according to the requirements of the display screen.
另外,本實施例的第三子畫素結構16的面積與第四子畫素結構18的面積總和等於第一子畫素結構12的面積或是第二子畫素結構14的面積。也就是說,本實施例顯示不同顏色的子畫素結構大約各占畫素結構10的總面積的三分之一。在本實施例中,顯示第三色彩的第三子畫素結構16的面積例如是相同於第四子畫素結構18的面積,亦即是第三子畫素結構16及第四子畫素結構 18各占畫素結構10的總面積的六分之一,但本發明不限於此。所屬技術領域中具有通常知識者可視其設計需求而對各子畫素的面積進行設計。在其他實施例中,第三子畫素結構16的面積佔第三子畫素結構16與第四子畫素結構18的總面積的比例為40%至60%。In addition, the total area of the area of the third sub-pixel structure 16 and the fourth sub-pixel structure 18 of the present embodiment is equal to the area of the first sub-pixel structure 12 or the area of the second sub-pixel structure 14. That is, the present embodiment shows that the sub-pixel structures of different colors each account for about one-third of the total area of the pixel structure 10. In this embodiment, the area of the third sub-pixel structure 16 displaying the third color is, for example, the same as the area of the fourth sub-pixel structure 18, that is, the third sub-pixel structure 16 and the fourth sub-pixel. structure 18 each account for one-sixth of the total area of the pixel structure 10, but the invention is not limited thereto. Those of ordinary skill in the art can design the area of each sub-pixel according to their design requirements. In other embodiments, the area of the third sub-pixel structure 16 is 40% to 60% of the total area of the third sub-pixel structure 16 and the fourth sub-pixel structure 18.
在本實施例中,第三子畫素結構16與第四子畫素結構18可以分別獨立驅動。因此,本實施例的畫素結構10例如可進行至少兩種顯示模式。在第一顯示模式下,第三子畫素結構16與第四子畫素結構18僅有一者被開啟。在第二顯示模式下,第三子畫素結構16與第四子畫素結構18都會被開啟。此時,第三子畫素結構16與第四子畫素結構18可以分別被提供相同或不同的驅動訊號。In this embodiment, the third sub-pixel structure 16 and the fourth sub-pixel structure 18 can be independently driven. Therefore, the pixel structure 10 of the present embodiment can perform, for example, at least two display modes. In the first display mode, only one of the third sub-pixel structure 16 and the fourth sub-pixel structure 18 is turned on. In the second display mode, both the third sub-pixel structure 16 and the fourth sub-pixel structure 18 are turned on. At this time, the third sub-pixel structure 16 and the fourth sub-pixel structure 18 may be respectively provided with the same or different driving signals.
在實際的應用中,顯示器可視顯示的內容而選取以第一顯示模式或第二顯示模式進行顯示。舉例而言,在觀賞電影時,對色彩表和度要求較高,可設定開啟飽和度較高的子畫素結構(第三子畫素結構16與第四子畫素結構18其中的一者)進行顯示。在上網時,對色彩飽和度要求較低,可設定開啟飽和度較低的子畫素結構(第三子畫素結構16與第四子畫素結構18其中的另一者)進行顯示。In an actual application, the display may be displayed in a first display mode or a second display mode depending on the displayed content. For example, when watching a movie, the color table and the degree are required to be high, and the sub-pixel structure with higher saturation can be set (one of the third sub-pixel structure 16 and the fourth sub-pixel structure 18). ) to display. When the Internet is connected, the color saturation is required to be low, and the sub-pixel structure (the other of the third sub-pixel structure 16 and the fourth sub-pixel structure 18) with lower saturation can be set for display.
除了依據不同的顯示需求選擇顯示模式外,畫素結構10的顯示方法還可以針對欲顯示的畫面的特性在顯示過程中切換顯示模式以獲得較有效率的顯示方法。圖2是依照本發明的一實施 例的一種判別與切換畫素結構的顯示模式的流程圖。請參照圖2,首先,進行初始顯示模式,其中初始顯示模式為第一顯示模式與第二顯示模式其中一者(步驟S50)。其次,讀取各色彩預定顯示的灰階,其中第一色彩預定顯示的灰階為L1,第二色彩預定顯示的灰階為L2,第三色彩預定顯示的灰階為L3,而畫素結構可顯示的總灰階數為L0(步驟S100)。接著,計算L1、L2、L3的平均值Ave(L1,L2,L3)(步驟S200)。再計算L1、L2、L3分別與平均值Ave(L1,L2,L3)的差值的絕對值:|Li -Ave(L1,L2,L3)| i =1 ~3 (步驟S300)。然後,判定L1、L2、L3是否符合關係式(1):|Li -Ave(L1,L2,L3)| i =1 ~3 5%×L0(步驟S400)。若L1、L2、L3符合關係式(1)則以第二顯示模式進行顯示(步驟S500A),也就是說,無論顯示器的初使顯示模式為何(第一顯示模式或第二顯示模式),當L1、L2、L3符合關係式(1)時,隨即切換至第二顯示模式進行顯示。而若L1、L2、L3不符合關係式(1)則繼續以初使顯示模式(即第一顯示模式與第二顯示模式其中一者)進行顯示。In addition to selecting a display mode according to different display requirements, the display method of the pixel structure 10 can also switch the display mode during display to obtain a more efficient display method for the characteristics of the picture to be displayed. 2 is a flow chart of a display mode for discriminating and switching pixel structures in accordance with an embodiment of the present invention. Referring to FIG. 2, first, an initial display mode is performed, wherein the initial display mode is one of the first display mode and the second display mode (step S50). Next, reading the gray scale of each color predetermined display, wherein the gray scale of the first color predetermined display is L1, the gray scale of the second color predetermined display is L2, and the gray scale of the third color predetermined display is L3, and the pixel structure The total number of gray levels that can be displayed is L0 (step S100). Next, the average values Ave (L1, L2, L3) of L1, L2, and L3 are calculated (step S200). The absolute value of the difference between L1, L2, and L3 and the average value Ave (L1, L2, L3) is further calculated: |L i -Ave(L1, L2, L3)| i = 1 to 3 (step S300). Then, it is determined whether L1, L2, and L3 satisfy the relationship (1): |L i -Ave(L1, L2, L3)| i = 1 ~ 3 5% × L0 (step S400). If L1, L2, and L3 are in the relationship (1), the display is performed in the second display mode (step S500A), that is, regardless of the initial display mode of the display (the first display mode or the second display mode), When L1, L2, and L3 satisfy the relational expression (1), they are switched to the second display mode for display. If L1, L2, and L3 do not conform to the relation (1), the display mode (i.e., one of the first display mode and the second display mode) is continuously displayed.
進一步而言,若初使顯示模式為第一顯示模式,且在步驟S400判定為否,則在步驟S400後繼續以第一顯示模式進行顯示。另一方面,若初使顯示模式為第二顯示模式,且在步驟S400判定為否,則在步驟S400後繼續以第二顯示模式進行顯示。也就是說,當L1、L2、L3不符合關係式(1)時,則顯示器維持初始顯示模式,而不用在第一顯示模式與第二顯示模式之間進行切換。Further, if the display mode is initially set to the first display mode and the determination in step S400 is NO, the display is continued in the first display mode after step S400. On the other hand, if the display mode is initially set to the second display mode, and the determination in step S400 is NO, the display is continued in the second display mode after step S400. That is, when L1, L2, and L3 do not conform to the relation (1), the display maintains the initial display mode without switching between the first display mode and the second display mode.
從上述關係式(1)可知,本實施例選定切換至第二顯示模 式的條件是預定顯示的色彩非特定色彩時,其例如為白色、灰色或是黑色等。由於這樣的色彩本身彩度相對低,本實施例透過使顯示這些色彩的畫素結構10以第二顯示模式進行顯示,可在不影響色彩表現下提升光穿透率。然而,無論原本是以第一顯示模式或第二顯示模式進行顯示,只要當各色彩預定顯示的灰階符合關係式(1),則畫素結構10可以切換至第二顯示模式進行顯示,以在不影響色彩表現下提升光穿透率而獲得高效率的顯示方法。It can be seen from the above relationship (1) that the present embodiment selectively switches to the second display mode. The condition of the formula is that when the color to be displayed is not a specific color, it is, for example, white, gray or black. Since such a color itself has a relatively low chroma, the present embodiment can enhance the light transmittance without affecting the color expression by causing the pixel structure 10 displaying the colors to be displayed in the second display mode. However, whether the display is originally performed in the first display mode or the second display mode, the pixel structure 10 can be switched to the second display mode for display as long as the gray scale of the predetermined color display conforms to the relation (1). A high-efficiency display method is obtained by increasing the light transmittance without affecting the color expression.
實際上,第一顯示模式可以進一步區分為兩種子顯示模式,第一顯示模式的第一子模式為開啟第三子畫素結構並且關閉第四子畫素結構,而第一顯示模式的第二子模式為關閉第三子畫素結構並且開啟第四子畫素結構。以下為了描述的方便,第一顯示模式的第一子模式亦被稱為第一A顯示模式,而第一顯示模式的第二子模式亦被稱為第一B顯示模式。In fact, the first display mode can be further divided into two sub-display modes, the first sub-mode of the first display mode is to turn on the third sub-pixel structure and close the fourth sub-pixel structure, and the second display mode is second. The sub mode is to close the third subpixel structure and turn on the fourth subpixel structure. For convenience of description, the first sub mode of the first display mode is also referred to as a first A display mode, and the second sub mode of the first display mode is also referred to as a first B display mode.
在第三子畫素結構16顯示的第三色彩具有第一飽和度,而第四子畫素結構18顯示的第三色彩具有第二飽和度,且第一飽和度大於第二飽和度時,上述各種顯示模式將呈現不同的顯示效果。舉例而言,在第一A顯示模式下,由於第三子畫素結構16與第四子畫素結構18中僅有飽和度較大的第三子畫素結構16被開啟,可以獲得色飽和度較高的畫面。在第一B顯示模式下,由於第三子畫素結構16與第四子畫素結構18中僅有飽和度較小的第四子畫素結構18被開啟,會獲得色飽和度較低不過光穿透率較高的畫面。在第二顯示模式下,第三子畫素結構16與第四子畫素結 構18都會被開啟而可以獲得色飽和度與光穿透率都不至於過低的畫面。The third color displayed in the third sub-pixel structure 16 has a first saturation, and the third color displayed in the fourth sub-pixel structure 18 has a second saturation, and when the first saturation is greater than the second saturation, The various display modes described above will exhibit different display effects. For example, in the first A display mode, since the third sub-pixel structure 16 of the third sub-pixel structure 16 and the fourth sub-pixel structure 18 having only a large saturation is turned on, color saturation can be obtained. A higher degree of picture. In the first B display mode, since only the fourth sub-pixel structure 18 having the smaller saturation in the third sub-pixel structure 16 and the fourth sub-pixel structure 18 is turned on, the color saturation is lower. A screen with a high light transmittance. In the second display mode, the third sub-pixel structure 16 and the fourth sub-pixel node The structure 18 is turned on to obtain a picture in which the color saturation and the light transmittance are not too low.
在現有技術中,當顯示資訊與顯示器的色域(色彩規範)不同時,容易發生顯示畫面色度異常飽和或是失真的現象。特別是,不同的色彩規範所定義的綠色色座標差異甚大,因此色度異常飽和或是失真的現象特別容易發生在綠色畫面。在本實施例中,第一色彩、第二色彩以及第三色彩例如分別設定為紅色、藍色與綠色。由於本實施例的第三子畫素結構16以及第四子畫素結構18能夠顯示不同飽和度的綠色,本實施例可透過開啟第三子畫素結構16以及第四子畫素結構18其中至少一者,以因應不同的色彩規範來顯示所需要的綠色,進而改善色度異常飽和或是失真的現象。也就是說,應用本實施例的畫素結構10的顯示器可以根據不同色彩規範以不同顯示模式進行顯示而顯示理想的畫面。In the prior art, when the display information is different from the color gamut (color specification) of the display, the phenomenon that the display screen chromaticity is abnormally saturated or distorted easily occurs. In particular, the green color coordinates defined by different color specifications vary greatly, so the phenomenon of abnormally saturated or distorted chromaticity is particularly likely to occur in green images. In the present embodiment, the first color, the second color, and the third color are set to, for example, red, blue, and green, respectively. Since the third sub-pixel structure 16 and the fourth sub-pixel structure 18 of the embodiment can display green of different saturations, the embodiment can open the third sub-pixel structure 16 and the fourth sub-pixel structure 18 through the embodiment. At least one of them displays the required green color in response to different color specifications, thereby improving the abnormal saturation or distortion of the chromaticity. That is to say, the display to which the pixel structure 10 of the present embodiment is applied can be displayed in different display modes according to different color specifications to display an ideal picture.
以下將以表一說明子畫素結構的色彩既定的條件下,改變第三子畫素結構與第四子畫素結構的面積比時,畫素結構在不同顯示模式下的顯示效果。In the following, the display effect of the pixel structure in different display modes when the area ratio of the third sub-pixel structure and the fourth sub-pixel structure is changed under the condition that the color of the sub-pixel structure is determined is shown in Table 1.
在表一中,「面積比」是指第三子畫素結構16與第四子畫素結構18的面積比。在此,第三子畫素結構16的面積與第四子畫素結構18的面積總和例如等於第一子畫素結構12的面積或第二子畫素結構14的面積。再者,上述的綠色、白色色座標是畫素結構10所顯示的顏色在CIE 1931色彩空間下的色座標。在此,綠色色座標是第一子畫素結構12與第二子畫素結構14皆未開啟時畫素 結構所顯示的綠色的色座標。由綠色色座標資料欄可知,第三子畫素結構16所顯示的綠色的第一飽和度小於第四子畫素結構18所顯示綠色的第二飽和度。此外,白色色座標是第一子畫素結構12與第二子畫素結構14皆開啟時畫素結構10所顯示的白色的色座標。並且,上述的「光穿透率」是指畫素結構10根據上述條件顯示白色時整體的光穿透率。上述的「飽和度」為根據美國國家電視系統委員會(National Television System Committee,NTSC)所訂定的飽和度。In Table 1, "area ratio" refers to the area ratio of the third sub-pixel structure 16 to the fourth sub-pixel structure 18. Here, the sum of the area of the third sub-pixel structure 16 and the area of the fourth sub-pixel structure 18 is, for example, equal to the area of the first sub-pixel structure 12 or the area of the second sub-pixel structure 14. Furthermore, the green and white color coordinates described above are the color coordinates of the color displayed by the pixel structure 10 in the CIE 1931 color space. Here, the green color coordinates are pixels when the first sub-pixel structure 12 and the second sub-pixel structure 14 are not turned on. The green color coordinates displayed by the structure. It can be seen from the green color coordinate data column that the first saturation of the green displayed by the third sub-pixel structure 16 is smaller than the second saturation of the green color displayed by the fourth sub-pixel structure 18. In addition, the white color coordinates are white color coordinates displayed by the pixel structure 10 when both the first sub-pixel structure 12 and the second sub-pixel structure 14 are turned on. Further, the above-mentioned "light transmittance" refers to the overall light transmittance of the pixel structure 10 when white is displayed in accordance with the above conditions. The above "saturation" is based on the saturation set by the National Television System Committee (NTSC).
從表一可知,在第三子畫素結構16與第四子畫素結構18的面積比為40:60至60:40的實驗例中,以第二模式進行顯示時,畫素結構10整體的光穿透率可高於面積比為0:100(即畫素結構10僅設置高飽和度的子畫素結構去顯示綠光)的畫素結構的光穿透率。並且,以第二模式進行顯示時,畫素結構10整體的飽和度可高於面積比為100:0(即畫素結構僅設置低飽和度的子畫素結構去顯示綠光)的畫素結構整體的飽和度。因此,畫素結構10可以根據不同的飽和度以及光穿透率的需求進行顯示。然而,上述將第三色彩定義為綠色的手段僅是舉例說明之用,本實施例並不用以限定第三色彩。所屬技術領域具有通常知識者可依其設計需求去選定第三色彩。As can be seen from Table 1, in the experimental example in which the area ratio of the third sub-pixel structure 16 to the fourth sub-pixel structure 18 is 40:60 to 60:40, when the display is performed in the second mode, the pixel structure 10 as a whole The light transmittance may be higher than the light transmittance of the pixel structure having an area ratio of 0:100 (i.e., the pixel structure 10 only sets a high saturation sub-pixel structure to display green light). Moreover, when displaying in the second mode, the overall saturation of the pixel structure 10 can be higher than that of the pixel having an area ratio of 100:0 (ie, the pixel structure is only set with a low saturation sub-pixel structure to display green light). The overall saturation of the structure. Therefore, the pixel structure 10 can be displayed according to the requirements of different saturation and light transmittance. However, the above-described means for defining the third color as green is for illustrative purposes only, and the embodiment is not intended to limit the third color. Those skilled in the art can select a third color according to their design requirements.
綜上所述,本發明的畫素結構包括顯示相同的第三色彩但不同飽和度的第三子畫素結構以及第四子畫素結構。透過開啟第三子畫素結構及第四子畫素結構,可藉由飽和度相對低但光穿 透率相對高的子畫素結構去補償畫素結構整體的光穿透率,進而使畫素結構能夠兼具好的飽和度以及光穿透率。In summary, the pixel structure of the present invention includes a third sub-pixel structure and a fourth sub-pixel structure that display the same third color but different saturation. By turning on the third sub-pixel structure and the fourth sub-pixel structure, the saturation can be relatively low but the light is worn. The sub-pixel structure with relatively high transmittance compensates for the overall light transmittance of the pixel structure, so that the pixel structure can have both good saturation and light transmittance.
雖然本發明已以實施例揭露如上,然其並非用以限定本發明,任何所屬技術領域中具有通常知識者,在不脫離本發明的精神和範圍內,當可作些許的更動與潤飾,故本發明的保護範圍當視後附的申請專利範圍所界定者為準。Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.
S50、S100、S200、S300、S400、S500A‧‧‧步驟S50, S100, S200, S300, S400, S500A‧‧‧ steps

Claims (13)

  1. 一種畫素結構,包括:一第一子畫素結構,顯示一第一色彩;一第二子畫素結構,顯示一第二色彩;一第三子畫素結構,顯示一第三色彩,且該第三子畫素結構顯示的該第三色彩具有一第一飽和度;以及一第四子畫素結構,顯示該第三色彩,且該第四子畫素結構顯示的該第三色彩具有一第二飽和度,而該第一飽和度不同於該第二飽和度,該第一子畫素結構、該第二子畫素結構、該第三子畫素結構以及該第四子畫素結構彼此並列,在一第一顯示模式下,該第三子畫素結構與該第四子畫素結構僅有一者被開啟,而在一第二顯示模式下,該第三子畫素結構與該第四子畫素結構兩者都被開啟,其中該第一色彩預定顯示的灰階為L1,該第二色彩預定顯示的灰階為L2,該第三色彩預定顯示的灰階為L3,L1、L2、L3的平均值為Ave(L1,L2,L3),L1、L2、L3分別與平均值Ave(L1,L2,L3)的差值的絕對值為|Li -Ave(L1,L2,L3)| i =1 ~3 ,而該畫素結構的總灰階數為L0時,L1、L2、L3符合下列關係式(1)則以該第二顯示模式進行顯示:|Li -Ave(L1,L2,L3)| i =1 ~3 5%×L0 (1)。A pixel structure includes: a first sub-pixel structure displaying a first color; a second sub-pixel structure displaying a second color; and a third sub-pixel structure displaying a third color, and The third color displayed by the third sub-pixel structure has a first saturation; and a fourth sub-pixel structure, the third color is displayed, and the third color displayed by the fourth sub-pixel structure has a second saturation, wherein the first saturation is different from the second saturation, the first sub-pixel structure, the second sub-pixel structure, the third sub-pixel structure, and the fourth sub-pixel The structures are juxtaposed to each other. In a first display mode, only one of the third sub-pixel structure and the fourth sub-pixel structure is turned on, and in a second display mode, the third sub-pixel structure is The fourth sub-pixel structure is turned on, wherein the first color is predetermined to display a gray scale of L1, the second color is predetermined to display a gray scale of L2, and the third color is predetermined to display a gray scale of L3. The average value of L1, L2, and L3 is Ave (L1, L2, L3), and L1, L2, and L3 are respectively compared with the average value Ave (L1, L2). The absolute value of the difference of L3) is |L i -Ave(L1,L2,L3)| i = 1 ~ 3 , and when the total gray level of the pixel structure is L0, L1, L2, L3 meet the following The relation (1) is displayed in the second display mode: |L i -Ave(L1, L2, L3)| i = 1 ~ 3 5% × L0 (1).
  2. 如申請專利範圍第1項所述的畫素結構,其中該第三子畫素結構的面積與該第四子畫素結構的面積總和等於該第一子畫素結構的面積或是該第二子畫素結構的面積。 The pixel structure of claim 1, wherein an area of the third sub-pixel structure and an area of the fourth sub-pixel structure are equal to an area of the first sub-pixel structure or the second The area of the subpixel structure.
  3. 如申請專利範圍第1項所述的畫素結構,其中該第三子畫素結構與該第四子畫素結構分別獨立驅動。 The pixel structure of claim 1, wherein the third sub-pixel structure and the fourth sub-pixel structure are independently driven.
  4. 如申請專利範圍第1項所述的畫素結構,其中該第一色彩、該第二色彩以及該第三色彩分別為紅色、藍色與綠色。 The pixel structure of claim 1, wherein the first color, the second color, and the third color are red, blue, and green, respectively.
  5. 如申請專利範圍第1項所述的畫素結構,其中該第一飽和度大於該第二飽和度。 The pixel structure of claim 1, wherein the first saturation is greater than the second saturation.
  6. 如申請專利範圍第5項所述的畫素結構,其中在相同顯示灰階下,該第三子畫素結構的穿透率低於該第四子畫素結構的穿透率。 The pixel structure of claim 5, wherein the transmittance of the third sub-pixel structure is lower than the transmittance of the fourth sub-pixel structure under the same display gray scale.
  7. 如申請專利範圍第1項所述的畫素結構,其中該第三子畫素結構的面積佔該第三子畫素結構與該第四子畫素結構的總面積的比例為40%至60%。 The pixel structure of claim 1, wherein an area of the third sub-pixel structure accounts for 40% to 60% of a total area of the third sub-pixel structure and the fourth sub-pixel structure. %.
  8. 如申請專利範圍第1項所述的畫素結構,其中L1、L2、L3不符合關係式(1)時,該畫素結構以該第一顯示模式與該第二顯示模式其中一者進行顯示。 The pixel structure according to claim 1, wherein when L1, L2, and L3 do not conform to the relation (1), the pixel structure is displayed in one of the first display mode and the second display mode. .
  9. 如申請專利範圍第1項所述的畫素結構,其中該第一顯示模式為開啟該第三子畫素結構並且關閉該第四子畫素結構。 The pixel structure of claim 1, wherein the first display mode is to turn on the third sub-pixel structure and close the fourth sub-pixel structure.
  10. 如申請專利範圍第1項所述的畫素結構,其中該第一子畫素結構、該第二子畫素結構、該第三子畫素結構與該第四子畫素結構分別具有一第一彩色濾光圖案、一第二彩色濾光圖案、一第三彩色濾光圖案以及一第四彩色濾光圖案。 The pixel structure of claim 1, wherein the first sub-pixel structure, the second sub-pixel structure, the third sub-pixel structure, and the fourth sub-pixel structure respectively have a first a color filter pattern, a second color filter pattern, a third color filter pattern, and a fourth color filter pattern.
  11. 一種畫素結構的顯示方法,包括: 以一如申請專利範圍第1項所述的畫素結構進行一初始顯示模式,其中該初始顯示模式為該第一顯示模式與該第二顯示模式其中一者;讀取該畫素結構的該第一色彩、該第二色彩以及該第三色彩預定顯示的灰階,其中該第一色彩預定顯示的灰階為L1,該第二色彩預定顯示的灰階為L2,該第三色彩預定顯示的灰階為L3,而該畫素結構的總灰階數為L0;計算L1、L2、L3的平均值Ave(L1,L2,L3);計算L1、L2、L3分別與平均值Ave(L1,L2,L3)的差值的絕對值:|Li -Ave(L1,L2,L3)| i =1 ~3 ;以及判定L1、L2、L3是否符合關係式(1):|Li -Ave(L1,L2,L3)| i =1 ~3 5%×L0;若L1、L2、L3符合關係式(1)則以該第二顯示模式進行顯示,若L1、L2、L3不符合關係式(1)則繼續以該初使顯示模式進行顯示。A display method for a pixel structure, comprising: performing an initial display mode according to the pixel structure as described in claim 1, wherein the initial display mode is one of the first display mode and the second display mode Reading the first color of the pixel structure, the second color, and the gray scale of the third color predetermined display, wherein the first color is predetermined to display a gray scale of L1, and the second color is predetermined to display gray The order is L2, the gray scale of the third color is predetermined to be L3, and the total gray level of the pixel structure is L0; the average value Ave (L1, L2, L3) of L1, L2, and L3 is calculated; The absolute value of the difference between L2 and L3 and the average value Ave (L1, L2, L3): |L i -Ave(L1, L2, L3)| i = 1 ~ 3 ; and whether L1, L2, L3 are consistent Relation (1): |L i -Ave(L1,L2,L3)| i = 1 ~ 3 5%×L0; if L1, L2, and L3 are in the relationship (1), the display is performed in the second display mode, and if L1, L2, and L3 do not conform to the relational expression (1), the display is continued in the initial display mode. .
  12. 如申請專利範圍第11項所述的畫素結構,其中該初使顯示模式為該第一顯示模式,且判定L1、L2、L3不符合關係式(1),則繼續以該第一顯示模式進行顯示。 The pixel structure of claim 11, wherein the initial display mode is the first display mode, and it is determined that L1, L2, and L3 do not conform to the relation (1), and the first display mode is continued. Display.
  13. 如申請專利範圍第11項所述的畫素結構,其中該初使顯示模式為該第二顯示模式,且判定L1、L2、L3不符合關係式(1),則繼續以該第二顯示模式進行顯示。 The pixel structure according to claim 11, wherein the initial display mode is the second display mode, and it is determined that L1, L2, and L3 do not conform to the relation (1), and the second display mode is continued. Display.
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