TWM542248U - Pixel structure and organic light emitting diode display panel - Google Patents
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Description
本創作有關於顯示技術領域,特別有關於一種像素結構以及包含該像素結構的OLED顯示面板。 The present invention relates to the field of display technology, and in particular to a pixel structure and an OLED display panel including the pixel structure.
有機發光二極體顯示面板(英文全名為Organic Light-Emitting Display,簡稱OLED顯示面板)具有主動發光、輕薄、視角大、回應速度快、節能、溫度耐受範圍大、可實現柔性顯示和透明顯示等優點,被視為下一代最具潛力的新型平板顯示技術。 The organic light-emitting diode display panel (English name "Organic Light-Emitting Display", referred to as OLED display panel) has active illumination, light weight, large viewing angle, fast response speed, energy saving, large temperature tolerance range, flexible display and transparency The display and other advantages are regarded as the next generation of the most potential new flat panel display technology.
在OLED顯示面板的全彩化方法中,彩色濾光片(英文全名為color filter,簡稱為CF)法與紅色、綠色、藍色(三基色為Red、Green、Blue,簡稱RGB)像素法是目前發展較為成熟的兩種方法。 In the full coloring method of the OLED display panel, the color filter (English full name is color filter, referred to as CF) method and red, green, blue (three primary colors are Red, Green, Blue, referred to as RGB) pixel method It is currently a relatively mature two methods.
OLED顯示面板領域的彩色濾光片法,類似液晶面板領域全彩顯示的彩色濾光片法,即白光有機發光二極體作為背光板起到液晶面板中背光板與液晶分子的作用,上面再加以濾光片以實現紅色、綠色、藍色子像素,這樣能夠很好的解決解析度和大面積製備的問題。但是,由於光線通過彩色濾光片後會有較大的能量損失,將導致顯示面板功率耗損增大。 The color filter method in the field of OLED display panels is similar to the color filter method in the full color display of the liquid crystal panel field, that is, the white light organic light emitting diode acts as a backlight to function as a backlight and liquid crystal molecules in the liquid crystal panel, and above Filters are used to implement red, green, and blue sub-pixels, which can solve the problem of resolution and large-area preparation. However, due to the large energy loss after the light passes through the color filter, the power consumption of the display panel is increased.
為了有效降低顯示面板的功率耗損,通常會採用RGB 像素法。 In order to effectively reduce the power consumption of the display panel, RGB is usually used. Pixel method.
圖1是習知一種採用RGB像素法的OLED顯示面板的示意圖。如圖1所示,OLED顯示面板採用RGB像素並置法,包括若干個像素單元Pixel,每個像素單元Pixel均包括在水平方向上依次排列的1個紅色子像素單元R、1個綠色子像素單元G和1個藍色子像素單元B,OLED顯示面板上的全部子像素單元呈矩陣排列,其中每個子像素單元均包括顯示區域1和非顯示區域2。具體而言,在每個子像素單元的顯示區域1中,包括陰極、陽極和電致發光層(有機發射層),其中,電致發光層位於陰極和陽極之間,用於產生預定顏色光線以實現顯示。一般藉由蒸鍍方式以在OLED顯示面板上形成電致發光層。在製備現有技術中顯示面板時,通常需要利用三次蒸鍍技藝以分別在對應顏色像素單元的顯示區域1中形成對應顏色(紅色、綠色或藍色)的電致發光層。 FIG. 1 is a schematic diagram of an OLED display panel using an RGB pixel method. As shown in FIG. 1 , the OLED display panel adopts an RGB pixel juxtaposition method, and includes a plurality of pixel units Pixel, and each pixel unit Pixel includes one red sub-pixel unit R and one green sub-pixel unit which are sequentially arranged in the horizontal direction. G and one blue sub-pixel unit B, all sub-pixel units on the OLED display panel are arranged in a matrix, wherein each sub-pixel unit includes a display area 1 and a non-display area 2. Specifically, in the display region 1 of each sub-pixel unit, a cathode, an anode, and an electroluminescent layer (organic emission layer) are included, wherein the electroluminescent layer is located between the cathode and the anode for generating a predetermined color of light Implement the display. The electroluminescent layer is typically formed on the OLED display panel by evaporation. In the preparation of prior art display panels, it is often desirable to utilize a three-time evaporation technique to form electroluminescent layers of corresponding colors (red, green or blue) in the display regions 1 of corresponding color pixel units, respectively.
圖2是習知另一種採用RGB像素法的OLED顯示面板的示意圖。如圖2所示,採用RGB像素矩陣法的OLED顯示面板包括若干個像素單元Pixel,每個像素單元Pixel包括1個紅色子像素單元R、1個綠色子像素單元G和1個藍色子像素單元B,上述3個子像素單元中2個像素單元如紅色子像素單元R和綠色子像素單元G排成一列,第3個像素單元如藍色子像素單元B排在另一列,OLED顯示面板上的全部子像素單元呈矩陣排列。 2 is a schematic diagram of another conventional OLED display panel using the RGB pixel method. As shown in FIG. 2, the OLED display panel adopting the RGB pixel matrix method includes a plurality of pixel units Pixel, and each pixel unit Pixel includes one red sub-pixel unit R, one green sub-pixel unit G, and one blue sub-pixel. In the unit B, two of the three sub-pixel units, such as the red sub-pixel unit R and the green sub-pixel unit G, are arranged in a row, and the third pixel unit, such as the blue sub-pixel unit B, is arranged in another column, on the OLED display panel. All of the sub-pixel units are arranged in a matrix.
隨著技術的發展,使用者對OLED顯示面板解析度的需求越來越高,傳統的RGB像素排列已不能滿足產品高PPI(每英寸所擁有的像素數目)的設計要求。 With the development of technology, users have higher and higher requirements for the resolution of OLED display panels. The traditional RGB pixel arrangement can no longer meet the design requirements of high PPI (the number of pixels per inch).
本創作提供一種像素結構,包括多個陣列排列的像素單元,每個像素單元包括一個第一子像素、一個第二子像素、一個第三子像素,該第二子像素和第三子像素為相鄰的四個像素單元共用。 The present invention provides a pixel structure including a plurality of pixel units arranged in an array, each pixel unit including a first sub-pixel, a second sub-pixel, and a third sub-pixel, wherein the second sub-pixel and the third sub-pixel are The adjacent four pixel units are shared.
在一個實施方式中,相鄰的四個第三子像素排列成四邊形,一個第二子像素以及相鄰的四個第一子像素位於該四邊形內,並且,一個第二子像素與一個第三子像素之間排列一個第一子像素,以構成四個像素單元。 In one embodiment, four adjacent third sub-pixels are arranged in a quadrangle, one second sub-pixel and four adjacent first sub-pixels are located in the quadrilateral, and one second sub-pixel and one third A first sub-pixel is arranged between the sub-pixels to constitute four pixel units.
在一個實施方式中,該第一子像素位於與其相鄰的第二子像素和第三子像素中心點的連線上。 In one embodiment, the first sub-pixel is located on a line connecting the center point of the second sub-pixel and the third sub-pixel adjacent thereto.
在一個實施方式中,該第一子像素、第二子像素以及第三子像素均為多邊形。 In one embodiment, the first sub-pixel, the second sub-pixel, and the third sub-pixel are all polygons.
在一個實施方式中,該第一子像素、第二子像素以及第三子像素的形狀為四邊形、六邊形、八邊形中的一種或其任意組合。 In one embodiment, the shapes of the first sub-pixel, the second sub-pixel, and the third sub-pixel are one of a quadrilateral, a hexagon, an octagon, or any combination thereof.
在一個實施方式中,該第一子像素為長方形,該第二子像素、第三子像素均為正方形。 In one embodiment, the first sub-pixel is a rectangle, and the second sub-pixel and the third sub-pixel are all square.
在一個實施方式中,該第一子像素的短邊方向與相鄰的第二子像素和第三子像素中心點的連線方向平行;或者,該第一子像素的短邊方向與相鄰的第二子像素和第三子像素中心點的連線方向垂直。 In one embodiment, the short side direction of the first sub-pixel is parallel to the connection direction of the adjacent second sub-pixel and the third sub-pixel center point; or the short side direction of the first sub-pixel is adjacent to The second sub-pixel and the third sub-pixel are perpendicular to the line direction of the center point.
在一個實施方式中,相鄰的兩個像素單元的第一子像素、第二子像素、第三子像素均為對稱設置。 In one embodiment, the first sub-pixel, the second sub-pixel, and the third sub-pixel of the adjacent two pixel units are symmetrically disposed.
在一個實施方式中,該第一子像素的面積小於該第二 子像素和第三子像素的面積。 In one embodiment, the area of the first sub-pixel is smaller than the second The area of the sub-pixel and the third sub-pixel.
本創作還提供一種OLED顯示面板,包括如上所述的像素結構。 The present invention also provides an OLED display panel comprising the pixel structure as described above.
為解決上述技術問題,本創作提供一種OLED顯示面板的像素結構,每個像素單元包括一個第一子像素、一個第二子像素、一個第三子像素,該第二子像素和第三子像素為相鄰的四個像素單元共用,如此,能夠在相同的PPI和設計餘量的情況下提高子像素的開口率,或者,在相同PPI和開口率情況下,提高產品設計餘量,降低技藝難度。 To solve the above technical problem, the present invention provides a pixel structure of an OLED display panel, each pixel unit including a first sub-pixel, a second sub-pixel, and a third sub-pixel, the second sub-pixel and the third sub-pixel It is shared by four adjacent pixel units, so that the aperture ratio of the sub-pixel can be improved with the same PPI and design margin, or the product design margin can be improved and the technique can be reduced under the same PPI and aperture ratio. Difficulty.
1‧‧‧顯示區域 1‧‧‧Display area
2‧‧‧非顯示區域 2‧‧‧Non-display area
110‧‧‧像素單元 110‧‧‧pixel unit
111‧‧‧第一子像素 111‧‧‧First subpixel
112‧‧‧第二子像素 112‧‧‧ second subpixel
113‧‧‧第三子像素 113‧‧‧ third sub-pixel
D1‧‧‧距離 D1‧‧‧ distance
D2‧‧‧距離 D2‧‧‧ distance
D3‧‧‧距離 D3‧‧‧ distance
D4‧‧‧距離 D4‧‧‧ distance
D5‧‧‧距離 D5‧‧‧ distance
L1‧‧‧虛擬邊 L1‧‧‧ virtual side
L2‧‧‧虛擬邊 L2‧‧‧ virtual side
P1‧‧‧頂點 P1‧‧‧ apex
P2‧‧‧頂點 P2‧‧‧ apex
P3‧‧‧頂點 P3‧‧‧ vertex
P4‧‧‧頂點 P4‧‧‧ vertex
Pixel‧‧‧像素單元 Pixel‧‧‧ pixel unit
X1‧‧‧虛擬直線 X1‧‧‧ virtual straight line
X2‧‧‧虛擬直線 X2‧‧‧ virtual straight line
Y1‧‧‧虛擬直線 Y1‧‧‧ virtual straight line
Y2‧‧‧虛擬直線 Y2‧‧‧ virtual straight line
圖1是習知一種OLED顯示面板的部分像素結構的示意圖。 FIG. 1 is a schematic diagram of a partial pixel structure of a conventional OLED display panel.
圖2是習知另一種OLED顯示面板的部分像素結構的示意圖。 2 is a schematic diagram of a partial pixel structure of another conventional OLED display panel.
圖3為本創作實施例一的OLED顯示面板的部分像素結構的示意圖。 FIG. 3 is a schematic diagram of a partial pixel structure of an OLED display panel according to the first embodiment of the present invention.
圖4為圖3所示的像素結構中四個像素單元的示意圖。 4 is a schematic diagram of four pixel units in the pixel structure shown in FIG.
圖5為本創作實施例二的OLED顯示面板的部分像素結構的示意圖。 FIG. 5 is a schematic diagram of a partial pixel structure of an OLED display panel according to a second embodiment of the present invention.
圖6為圖5所示的像素結構中四個像素單元的示意圖。 FIG. 6 is a schematic diagram of four pixel units in the pixel structure shown in FIG.
圖7為本創作實施例三的OLED顯示面板的部分像素結構的示意圖。 FIG. 7 is a schematic diagram showing a partial pixel structure of an OLED display panel according to a third embodiment of the present invention.
圖8為圖7所示的像素結構中四個像素單元的示意圖。 FIG. 8 is a schematic diagram of four pixel units in the pixel structure shown in FIG.
正如先前技術部分所述,傳統的RGB像素排列已不 能滿足產品高PPI的設計要求。基於此,本創作提供一種OLED顯示面板的像素結構,包括多個陣列排列的像素單元,每個像素單元包括一個第一子像素、一個第二子像素和一個第三子像素,該第二子像素、第三子像素為相鄰的4個像素單元共用。如此,能夠在相同的PPI和設計餘量的情況下提高子像素的開口率,延長裝置壽命,或者,在相同PPI和開口率情況下,提高產品設計餘量,降低技藝難度,提升良率。 As stated in the previous section, traditional RGB pixel arrangements are no longer Can meet the design requirements of high PPI products. Based on this, the present invention provides a pixel structure of an OLED display panel, comprising a plurality of pixel units arranged in an array, each pixel unit including a first sub-pixel, a second sub-pixel and a third sub-pixel, the second sub-pixel The pixel and the third sub-pixel are shared by four adjacent pixel units. In this way, the aperture ratio of the sub-pixel can be increased in the case of the same PPI and design margin, the life of the device can be prolonged, or the product design margin can be improved, the technical difficulty can be reduced, and the yield can be improved under the same PPI and aperture ratio.
以上是本申請的核心思想,下面結合本創作實施例中的附圖,對本創作實施例中的技術方案進行清楚、完整地描述,顯然,所描述的實施例僅僅是本創作的一部分實施例,而不是全部的實施例。基於本創作中的實施例,本領域普通技術人員在沒有做出創造性勞動前提下所獲得的所有其他實施例,都屬於本創作保護的範圍。 The above is the core idea of the present application. The technical solutions in the present creative embodiment are clearly and completely described below in conjunction with the drawings in the present exemplary embodiment. It is obvious that the described embodiments are only a part of the embodiments of the present invention. Rather than all embodiments. Based on the embodiments in the present creation, all other embodiments obtained by those skilled in the art without creative efforts are within the scope of the present invention.
在下面的描述中闡述很多具體細節以便於充分理解本創作,但是本創作還可以採用其他不同於在此描述的方式來實施,本領域技術人員可以在不違背本創作內涵的情況下做類似推廣,因此本創作不受下面公開的具體實施例的限制。 In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways than those described herein, and those skilled in the art can make similar promotion without violating the meaning of the creation. Therefore, the present creation is not limited by the specific embodiments disclosed below.
其次,本創作結合示意圖進行詳細描述,在詳述本創作實施例時,為便於說明,表示裝置結構的剖面圖會不依一般比例作局部放大,而且該示意圖只是示例,其在此不應限制本創作保護的範圍。此外,在實際製作中應包含長度、寬度及深度的三維空間尺寸。 Secondly, the present invention is described in detail in conjunction with the schematic diagram. In the detailed description of the present embodiment, for the convenience of description, the sectional view of the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the present. The scope of creative protection. In addition, the actual three-dimensional dimensions of length, width and depth should be included in the actual production.
下面藉由實施例具體描述本創作提供的像素結構以及包含該像素結構的OLED顯示面板。為了清楚簡要的目的,下文 中採用子像素的中心的位置來描述子像素的位置,然而本創作不應以此為限。本領域技術人員應當理解,也可以採用子像素的頂點或其他基準點的位置來描述子像素的位置。 The pixel structure provided by the present invention and the OLED display panel including the pixel structure are specifically described below by way of embodiments. For the sake of clarity and clarity, the following The position of the center of the sub-pixel is used to describe the position of the sub-pixel, but the creation should not be limited thereto. Those skilled in the art will appreciate that the position of the sub-pixels may also be described using the positions of the vertices or other reference points of the sub-pixels.
圖3為本創作實施例一的OLED顯示面板的部分像素結構的示意圖,圖4為圖3所示的像素結構中四個像素單元的示意圖。 3 is a schematic diagram of a partial pixel structure of an OLED display panel according to the first embodiment of the present invention, and FIG. 4 is a schematic diagram of four pixel units in the pixel structure shown in FIG.
如圖3及圖4所示,OLED顯示面板的像素結構包括多個陣列排列的像素單元110,每個像素單元110包括3個子像素,分別為1個第一子像素111、1個第二子像素112和1個第三子像素113,該第一子像素111為一個像素單元110獨用,而第二子像素112、第三子像素113為相鄰的4個像素單元共用。在相同PPI和設計餘量的情況下,可以提高子像素的開口率,從而延長裝置的壽命。在相同的PPI和開口率情況下,相鄰像素之間的縫隙就相應變大,有利於改善使用精細金屬遮罩的沉積程序中有機發射層的沉積穩定性,提高產品設計餘量,降低技藝難度。 As shown in FIG. 3 and FIG. 4, the pixel structure of the OLED display panel includes a plurality of pixel units 110 arranged in an array, and each of the pixel units 110 includes three sub-pixels, which are respectively a first sub-pixel 111 and a second sub-pixel. The pixel 112 and the first sub-pixel 113 are used by one pixel unit 110, and the second sub-pixel 112 and the third sub-pixel 113 are shared by four adjacent pixel units. In the case of the same PPI and design margin, the aperture ratio of the sub-pixels can be increased, thereby extending the life of the device. In the case of the same PPI and aperture ratio, the gap between adjacent pixels becomes correspondingly larger, which is beneficial to improve the deposition stability of the organic emission layer in the deposition process using the fine metal mask, improve the product design margin, and reduce the skill. Difficulty.
如圖4中的方形虛線框所示,相鄰的4個第三子像素113排列成四邊形,例如是正方形,1個第二子像素112以及相鄰的4個第一子像素111位於該四邊形內,即,4個第三子像素113包圍1個第二子像素112以及相鄰的4個第一子像素111。具體地說,4個第三子像素113分別位於四邊形的四個頂點P1、P2、P3、P4上,1個第二子像素以及1個第三子像素113之間排列1個第一子像素111,從而構成四個像素單元110,第二子像素112為圖4所示的4個像素單元110共用。 As shown by the square dotted frame in FIG. 4, the adjacent four third sub-pixels 113 are arranged in a quadrangular shape, for example, a square, and one second sub-pixel 112 and four adjacent first sub-pixels 111 are located in the quadrilateral. In other words, the four third sub-pixels 113 surround one second sub-pixel 112 and four adjacent first sub-pixels 111. Specifically, the four third sub-pixels 113 are respectively located on the four vertices P1, P2, P3, and P4 of the quadrilateral, and one first sub-pixel is arranged between the one second sub-pixel and the one of the third sub-pixels 113. 111, thereby constituting four pixel units 110, and the second sub-pixels 112 are shared by the four pixel units 110 shown in FIG.
重點參考圖4,在本實施例中,第二子像素112位於四邊形的正中心,同時,第一子像素111位於與其相鄰的第二子像素112和第三子像素113中心點的連線上,進一步的,第一子像素111位於相鄰的第二子像素112和第三子像素113連線的中心。當然,第一子像素111的位置並不局限於以上描述,例如,第一子像素111可以不位於第二子像素112和第三子像素113中心點連線上,實際上,第一子像素111位於相鄰的第二子像素112和第三子像素113之間,保證第二子像素112和第三子像素113為相鄰的4個像素單元共用即可。 Referring to FIG. 4 in detail, in the embodiment, the second sub-pixel 112 is located at the center of the quadrilateral, and at the same time, the first sub-pixel 111 is located at the center point of the second sub-pixel 112 and the third sub-pixel 113 adjacent thereto. Further, the first sub-pixel 111 is located at the center of the connection between the adjacent second sub-pixel 112 and the third sub-pixel 113. Of course, the position of the first sub-pixel 111 is not limited to the above description. For example, the first sub-pixel 111 may not be located on the center point of the second sub-pixel 112 and the third sub-pixel 113. In fact, the first sub-pixel 111 is located between the adjacent second sub-pixel 112 and the third sub-pixel 113, and the second sub-pixel 112 and the third sub-pixel 113 are shared by the adjacent four pixel units.
本實施例的像素結構中,第一子像素111、第二子像素112、第三子像素113均為四邊形,詳細的,第一子像素111為長方形,第二子像素112和第三子像素113均為正方形,第一子像素111的長邊方向與相鄰的第二子像素112、第三子像素113中心點的連線方向平行,其短邊方向則與相鄰的第二子像素112、第三子像素113中心點的連線方向垂直。 In the pixel structure of the embodiment, the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 are all quadrangular. In detail, the first sub-pixel 111 is a rectangle, and the second sub-pixel 112 and the third sub-pixel 113 is a square, and the longitudinal direction of the first sub-pixel 111 is parallel to the connection direction of the center points of the adjacent second sub-pixel 112 and the third sub-pixel 113, and the short-side direction is adjacent to the adjacent second sub-pixel. 112. The connection direction of the center point of the third sub-pixel 113 is perpendicular.
進一步地,相鄰的兩個像素單元的第一子像素111沿相鄰的第二子像素112的連線方向鏡像對稱,如圖4中的虛擬邊L1、L2所示,此處所述「鏡像對稱」是指兩個第一子像素111的形狀相同但方向不同的對稱。而相鄰的第二子像素112、第三子像素113均為自身對稱,此處所述「自身對稱」是指兩個子像素形狀和方向完全相同的對稱。 Further, the first sub-pixels 111 of the adjacent two pixel units are mirror-symmetrical along the connecting direction of the adjacent second sub-pixels 112, as shown by the virtual edges L1 and L2 in FIG. 4, as described herein. "Mirror symmetry" refers to the symmetry of the two first sub-pixels 111 having the same shape but different directions. The adjacent second sub-pixel 112 and the third sub-pixel 113 are all self-symmetric. Here, "self-symmetry" refers to the symmetry of the two sub-pixels having the same shape and direction.
上述是以四邊形為例介紹第一子像素111、第二子像素112、第三子像素113的形狀,但應認識到,在本創作其他實施方式中,第一子像素111、第二子像素112、第三子像素113也可 以是其他形狀,諸如三角形、五邊形、六邊形、七邊形、八邊形等多種多邊形形狀中的一種或多種。並且,第一子像素111的長邊方向與第二子像素112、第三子像素113中心點的連線方向也可以不平行,比如具有一定的夾角。 The shape of the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 is described by taking a quadrilateral as an example. However, it should be recognized that in other embodiments of the present disclosure, the first sub-pixel 111 and the second sub-pixel are 112, the third sub-pixel 113 can also Or other shapes, such as one or more of a plurality of polygonal shapes such as a triangle, a pentagon, a hexagon, a heptagon, an octagon, and the like. Further, the longitudinal direction of the first sub-pixel 111 and the connection direction of the center points of the second sub-pixel 112 and the third sub-pixel 113 may not be parallel, for example, have a certain angle.
參考圖3和圖4,在本實施例中,第二子像素112和第三子像素113面積相同,每個第一子像素111具有比相鄰的第二子像素112和第三子像素113更小的面積。本實施例中之所以使第一子像素111的面積最小,其餘子像素面積均大於第一子像素111的面積,是考慮到其餘子像素均為相鄰的四個像素單元共用的,故而使其面積略大。但應當認識到,本創作並不限定各個子像素的具體面積,第一子像素111、第二子像素112、第三子像素113的面積可以相同也可以不相同,可以根據配色要求來相應調整各個子像素的面積。 Referring to FIG. 3 and FIG. 4, in the present embodiment, the second sub-pixel 112 and the third sub-pixel 113 have the same area, and each of the first sub-pixels 111 has a second sub-pixel 112 and a third sub-pixel 113 that are adjacent to each other. Smaller area. In this embodiment, the area of the first sub-pixel 111 is minimized, and the remaining sub-pixel areas are larger than the area of the first sub-pixel 111, so that the remaining sub-pixels are shared by four adjacent pixel units, so that Its area is slightly larger. However, it should be understood that the present invention does not limit the specific area of each sub-pixel. The areas of the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 may be the same or different, and may be adjusted according to the color matching requirements. The area of each sub-pixel.
繼續參考圖3,在本實施例中,相鄰的第一子像素111之間的距離為D1,第一子像素111與相鄰的第二子像素112之間的距離為D2,第一子像素111與相鄰的第三子像素113之間的距離為D3,相鄰的兩個第二子像素112之間的距離為D4,相鄰的兩個第三子像素113之間的距離為D5。由於第二子像素112、第三子像素113為相鄰的4個像素單元共用,在與傳統結構相同的PPI和開口率情況下,縮小第二子像素112、第三子像素113的面積後,相鄰子像素之間的縫隙諸如D2、D3、D4、D5可以相應變大,從而改善使用精細金屬遮罩的沉積程序中有機發射層的沉積穩定性,降低技藝難度。本實施例中,由於相鄰的兩個第二子像素112之間的距離D4以及相鄰的兩個第三子像素113之間的距離D5較大,可 以在此位置上放置隔離柱,從而增加顯示面板的強度。 With continued reference to FIG. 3, in the present embodiment, the distance between the adjacent first sub-pixels 111 is D1, and the distance between the first sub-pixel 111 and the adjacent second sub-pixel 112 is D2, the first sub- The distance between the pixel 111 and the adjacent third sub-pixel 113 is D3, the distance between the adjacent two second sub-pixels 112 is D4, and the distance between the adjacent two third sub-pixels 113 is D5. Since the second sub-pixel 112 and the third sub-pixel 113 are shared by four adjacent pixel units, the area of the second sub-pixel 112 and the third sub-pixel 113 is reduced after the same PPI and aperture ratio as the conventional structure. The gaps between adjacent sub-pixels, such as D2, D3, D4, D5, can be correspondingly larger, thereby improving the deposition stability of the organic emission layer in the deposition process using the fine metal mask, and reducing the technical difficulty. In this embodiment, since the distance D4 between the adjacent two second sub-pixels 112 and the distance D5 between the adjacent two third sub-pixels 113 are larger, The spacer is placed at this position to increase the strength of the display panel.
在本實施例中,每個奇數行中,第二子像素112和第三子像素113交替排列,且二者之間始終排列一第一子像素111,例如沿著圖3中的第一虛擬直線X1排列;每個偶數行中,若干第一子像素111沿直線排列,例如沿著圖3中的第二虛擬直線X2排列;每個奇數列中,第二子像素112和第三子像素113交替排列,且二者之間始終排列一第一子像素111,例如沿著圖3中的第一虛擬直線Y1排列;每個偶數列中,第一子像素111沿直線排列,例如沿著圖3中的第二虛擬直線Y2排列;並且,相鄰的兩個第二子像素112以及相鄰的兩個第三子像素113之間均沒有設置第一子像素111。在本創作其他實施方式中,亦可將第二子像素112和第三子像素113的位置調換。也就是說,每個奇數行中,第一子像素111沿直線排列;每個偶數行中,第二子像素112和第三子像素113交替排列並且二者之間始終具有一第一子像素111;每個奇數列中,第一子像素111沿直線排列;每個偶數列中,第二子像素112和第三子像素113交替排列並且二者之間始終具有一第一子像素111。可以理解的是,為了簡要,圖3中僅是示意性的表示出OLED顯示面板的部分像素結構,實際可以設置更多列和/或更多行。 In this embodiment, in each odd row, the second sub-pixel 112 and the third sub-pixel 113 are alternately arranged, and a first sub-pixel 111 is always arranged between the two, for example, along the first virtual in FIG. A line X1 is arranged; in each even row, a plurality of first sub-pixels 111 are arranged along a straight line, for example, along a second virtual straight line X2 in FIG. 3; in each odd-numbered column, a second sub-pixel 112 and a third sub-pixel 113 are alternately arranged, and a first sub-pixel 111 is always arranged between the two, for example, along the first virtual straight line Y1 in FIG. 3; in each even column, the first sub-pixel 111 is arranged along a straight line, for example along The second virtual straight line Y2 in FIG. 3 is arranged; and the first sub-pixel 111 is not disposed between the adjacent two second sub-pixels 112 and the adjacent two third sub-pixels 113. In other embodiments of the present invention, the positions of the second sub-pixel 112 and the third sub-pixel 113 may also be changed. That is, in each odd row, the first sub-pixels 111 are arranged in a straight line; in each of the even rows, the second sub-pixel 112 and the third sub-pixel 113 are alternately arranged with a first sub-pixel therebetween. 111; in each of the odd columns, the first sub-pixels 111 are arranged in a straight line; in each of the even columns, the second sub-pixels 112 and the third sub-pixels 113 are alternately arranged with a first sub-pixel 111 always in between. It can be understood that, for the sake of brevity, only a partial pixel structure of the OLED display panel is schematically illustrated in FIG. 3, and more columns and/or more rows may be actually set.
在本實施例中,第一子像素111發射紅光,並且包括用於發射紅光的有機發射層;第二子像素112發射藍光,並且包括用於發射藍光的有機發射層;第三子像素113發射綠光,並且包括用於發射綠光的有機發射層。需要說明的是,本創作中各個子像素的色光可以互換,只需滿足如下條件即可:第一子像素111、第二子像素112、第三子像素113中至少包括紅色子像素、綠色子像素 和藍色子像素,例如,在其他實施方式中,第一子像素111可以發射藍光,第二子像素112可以發射紅光,第三子像素113可以發射綠光,等等,在此不一一列舉。 In this embodiment, the first sub-pixel 111 emits red light and includes an organic emission layer for emitting red light; the second sub-pixel 112 emits blue light, and includes an organic emission layer for emitting blue light; the third sub-pixel 113 emits green light and includes an organic emission layer for emitting green light. It should be noted that the color lights of the sub-pixels in the present invention may be interchanged, and only the following conditions may be met: the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 include at least a red sub-pixel and a green sub-pixel. Pixel And blue sub-pixels, for example, in other embodiments, the first sub-pixel 111 can emit blue light, the second sub-pixel 112 can emit red light, the third sub-pixel 113 can emit green light, and the like, An enumeration.
圖5為本創作實施例二的OLED顯示面板的部分像素結構的示意圖,圖6為圖5所示的像素結構中四個像素單元的示意圖。 FIG. 5 is a schematic diagram of a partial pixel structure of an OLED display panel according to a second embodiment of the present invention, and FIG. 6 is a schematic diagram of four pixel units in the pixel structure illustrated in FIG. 5.
如圖5及圖6所示,OLED顯示面板的像素結構包括多個陣列排列的像素單元110,每個像素單元110包括3個子像素,分別為1個第一子像素111、1個第二子像素112和1個第三子像素113,該第一子像素111為一個像素單元110獨用,而第二子像素112、第三子像素113為相鄰的4個像素單元共用。 As shown in FIG. 5 and FIG. 6 , the pixel structure of the OLED display panel includes a plurality of pixel units 110 arranged in an array, and each pixel unit 110 includes three sub-pixels, which are respectively a first sub-pixel 111 and a second sub-pixel. The pixel 112 and the first sub-pixel 113 are used by one pixel unit 110, and the second sub-pixel 112 and the third sub-pixel 113 are shared by four adjacent pixel units.
本實施例與實施例一不同之處在於,第一子像素111的短邊方向與相鄰的第二子像素112、第三子像素113中心點的連線方向平行,其長邊方向則與相鄰的第二子像素112、第三子像素113中心點的連線方向垂直,如圖5和圖6所示。 This embodiment differs from the first embodiment in that the short side direction of the first sub-pixel 111 is parallel to the line connecting the center points of the adjacent second sub-pixel 112 and the third sub-pixel 113, and the long-side direction thereof is The connection direction of the center points of the adjacent second sub-pixel 112 and the third sub-pixel 113 is perpendicular, as shown in FIGS. 5 and 6.
圖7為本創作實施例三的OLED顯示面板的部分像素結構的示意圖,圖8為圖7所示的像素結構中四個像素單元的示意圖。 FIG. 7 is a schematic diagram of a partial pixel structure of an OLED display panel according to a third embodiment of the present invention, and FIG. 8 is a schematic diagram of four pixel units in the pixel structure illustrated in FIG. 7.
如圖7及圖8所示,OLED顯示面板的像素結構包括多個陣列排列的像素單元110,每個像素單元110包括3個子像素,分別為1個第一子像素111、1個第二子像素112和1個第三子像素113,該第一子像素111為一個像素單元110獨用,而第二 子像素112、第三子像素113為相鄰的4個像素單元共用。 As shown in FIG. 7 and FIG. 8 , the pixel structure of the OLED display panel includes a plurality of pixel units 110 arranged in an array, and each of the pixel units 110 includes three sub-pixels, which are respectively a first sub-pixel 111 and a second sub-pixel. a pixel 112 and a third sub-pixel 113, the first sub-pixel 111 is used exclusively by one pixel unit 110, and the second The sub-pixel 112 and the third sub-pixel 113 are shared by four adjacent pixel units.
本實施例與實施例一不同之處在於,第一子像素111、第二子像素112和第三子像素113均為正方形。相鄰的兩個像素單元的第一子像素111、第二子像素112、第三子像素113均為自身對稱。具體的說,相鄰的兩個像素單元的第一子像素111沿相鄰的第二子像素112或第三子像素113的連線方向自身對稱,如圖8中的虛擬邊L1、L2所示。 The first embodiment is different from the first embodiment in that the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 are all square. The first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 of the adjacent two pixel units are all self-symmetric. Specifically, the first sub-pixels 111 of the adjacent two pixel units are themselves symmetrical along the connecting direction of the adjacent second sub-pixel 112 or the third sub-pixel 113, as shown by the virtual edges L1 and L2 in FIG. Show.
本實施例提供一種OLED顯示面板,包含實施例一或實施例二或實施例三所述的像素結構。 The embodiment provides an OLED display panel, which includes the pixel structure described in Embodiment 1 or Embodiment 2 or Embodiment 3.
在一個實施方式中,在第一子像素111、第二子像素112、第三子像素113中設置有用於驅動每個像素的電源線,例如,柵極線、資料線、驅動電源線等等。另外,設置有用於限定各個子像素的絕緣層,諸如像素限定層。進一步地,在一個實施方式中,設置有包括與第一子像素111、第二子像素112、第三子像素113中的每個對應的陽極、有機發射層和陰極的OLED。可藉由電源線、像素限定層、陽極等限定各個像素的形狀。這些結構為本領域習知技術,本文為了便於說明省略對其的進一步描述,但是本領域技術人員應是知曉的。 In one embodiment, power lines for driving each pixel, such as gate lines, data lines, driving power lines, etc., are disposed in the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113. . In addition, an insulating layer for defining each sub-pixel, such as a pixel defining layer, is provided. Further, in one embodiment, an OLED including an anode, an organic emission layer, and a cathode corresponding to each of the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 is disposed. The shape of each pixel can be defined by a power supply line, a pixel defining layer, an anode, or the like. These structures are well known in the art and are further described herein for the convenience of the description, but will be known to those skilled in the art.
在OLED顯示面板的像素內包括的有機發射層可藉由利用遮罩(如精細金屬遮罩(FMM))的沉積(蒸鍍)技藝形成。當減少相鄰像素間的縫隙以獲得像素的高開口率時,會降低沉積可靠性。另一方面,當增加像素間的縫隙以提高沉積可靠性時,會降 低像素的開口率。本創作將傳統RGB像素排列結構進行轉換,子像素的面積可以相比於傳統的結構更小一些。在相同PPI和設計餘量的情況下,可以提高子像素的開口率,從而抑制OLED顯示面板的使用壽命的縮減,即延長裝置的壽命。在相同的PPI和開口率情況下,由於子像素的面積可以縮小,相鄰子像素之間的縫隙相應變大,可以改善使用精細金屬遮罩的沉積程序中有機發射層的沉積穩定性,即可以提高產品設計餘量,降低技藝難度。另一方面,由於相鄰的兩個第二子像素及相鄰的兩個第三子像素之間距離相對較大,可以在此位置上放置隔離柱,從而增加顯示面板的強度。 The organic emission layer included in the pixels of the OLED display panel can be formed by a deposition (evaporation) technique using a mask such as a fine metal mask (FMM). When the gap between adjacent pixels is reduced to obtain a high aperture ratio of the pixel, deposition reliability is lowered. On the other hand, when increasing the gap between pixels to improve deposition reliability, it will drop Low pixel aperture ratio. This creation converts the traditional RGB pixel arrangement structure, and the area of the sub-pixel can be smaller than the conventional structure. In the case of the same PPI and design margin, the aperture ratio of the sub-pixel can be increased, thereby suppressing the reduction in the service life of the OLED display panel, that is, extending the life of the device. In the case of the same PPI and aperture ratio, since the area of the sub-pixel can be reduced, and the gap between adjacent sub-pixels becomes correspondingly larger, the deposition stability of the organic emission layer in the deposition process using the fine metal mask can be improved, that is, Can improve product design margin and reduce technical difficulty. On the other hand, since the distance between the adjacent two second sub-pixels and the adjacent two third sub-pixels is relatively large, the spacer can be placed at this position, thereby increasing the strength of the display panel.
需要說明的是,本說明書中各個實施例採用遞進的方式描述,每個實施例重點說明的都是與其他實施例的不同之處,各個實施例之間相同、相似部分互相參見即可。 It is to be noted that the various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same and similar parts may be referred to each other.
上述描述僅是對本創作較佳實施例的描述,並非對本創作範圍的任何限定,本創作領域的普通技術人員根據上述揭示內容做的任何變更、修飾,均屬於請求項的保護範圍。 The above description is only a description of the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any changes and modifications made by those skilled in the art in light of the above disclosure are within the scope of the claims.
110‧‧‧像素單元 110‧‧‧pixel unit
111‧‧‧第一子像素 111‧‧‧First subpixel
112‧‧‧第二子像素 112‧‧‧ second subpixel
113‧‧‧第三子像素 113‧‧‧ third sub-pixel
D1‧‧‧距離 D1‧‧‧ distance
D2‧‧‧距離 D2‧‧‧ distance
D3‧‧‧距離 D3‧‧‧ distance
D4‧‧‧距離 D4‧‧‧ distance
D5‧‧‧距離 D5‧‧‧ distance
X1‧‧‧虛擬直線 X1‧‧‧ virtual straight line
X2‧‧‧虛擬直線 X2‧‧‧ virtual straight line
Y1‧‧‧虛擬直線 Y1‧‧‧ virtual straight line
Y2‧‧‧虛擬直線 Y2‧‧‧ virtual straight line
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