TWI559526B - Organic light-emitting device and pixel array - Google Patents
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本發明涉及有機發光元件製備領域，確切的說，涉及一種有機發光元件及像素陣列。 The present invention relates to the field of preparation of organic light-emitting elements, and more particularly to an organic light-emitting element and a pixel array.
近年來，已經研製出各種各樣能夠減小重量和體積的平板顯示器，由於重量輕、體積小、厚度薄被人們所喜愛，因此廣泛應用於手機、電腦、平板中。目前，平板顯示器包括液晶顯示器(LCD)，場致發射顯示器(FED)，等離子體顯示板(PDP)和有機發光元件(OLED)。 In recent years, various flat panel displays capable of reducing weight and volume have been developed, and are widely used in mobile phones, computers, and tablets because of their light weight, small size, and thin thickness. Currently, flat panel displays include liquid crystal displays (LCDs), field emission displays (FEDs), plasma display panels (PDPs), and organic light emitting elements (OLEDs).
由於與其他平板顯示器相比，有機發光元件(OLED)具有更大的使用溫度範圍，更高的抗震動或振動性，更寬的視角以及更高速回應，因此，已經提出將其作為下一代平板型顯示裝置，而AMOLED則是OLED最為優秀的一種產品。 Since the organic light-emitting element (OLED) has a larger temperature range of use, higher vibration resistance or vibration resistance, wider viewing angle, and higher speed response than other flat panel displays, it has been proposed as a next-generation tablet. Type display device, and AMOLED is the most excellent product of OLED.
OLED包括使用有機發光二極體的有機發光顯示元件，和使用無機發光二極體的無機發光顯示器。有機發光二極體包括陽極、陰極，以及設置在陽極與陰極之間的、利用電子與空穴的複合來發光的有機發光層。無機發光二極體包括由PN結半導體構成的無機發光層。在有機發光元件中，在基板上的至少一個像素區中形成的子像素區處，沉積紅(R)、綠(G)和藍(B)材料，並且通過驅動在基板上形成的薄膜晶體管，使各個子像素區發光。 The OLED includes an organic light emitting display element using an organic light emitting diode, and an inorganic light emitting display using an inorganic light emitting diode. The organic light-emitting diode includes an anode, a cathode, and an organic light-emitting layer disposed between the anode and the cathode and emitting light by recombination of electrons and holes. The inorganic light-emitting diode includes an inorganic light-emitting layer composed of a PN junction semiconductor. In the organic light emitting element, red (R), green (G), and blue (B) materials are deposited at a sub-pixel region formed in at least one of the pixel regions on the substrate, and by driving a thin film transistor formed on the substrate, Each sub-pixel region is caused to emit light.
現行技術中，LCD採用之像素排列方式主要為標準RGB排列方式，即RGB三種原色像素呈現stripe條狀排列，如圖1所示，其中1代表紅色原像素(R)，2代表綠色原像素(G)，3代表藍色原像素(B)；繼續如圖2所示，三個原色像素1、2、3共用一個陰極電極層4，且每個原色像素均通過一陽極電極層來實現對該原色像素的發光狀態進行控制。在工作時，各陽極電極層1a、2a、3a分別控制紅色原像素1、綠色原像素2、藍色原像素3的發光狀態，人眼通過將紅綠藍三原色像素結合觀看，從而得到全彩色的顯示效果。 In the current technology, the pixel arrangement of the LCD is mainly a standard RGB arrangement, that is, three primary color pixels of RGB are presented in a stripe arrangement, as shown in FIG. 1 , where 1 represents a red original pixel (R), and 2 represents a green original pixel ( G), 3 represents the blue original pixel (B); as shown in FIG. 2, the three primary color pixels 1, 2, 3 share a cathode electrode layer 4, and each primary color pixel is realized by an anode electrode layer. The light-emitting state of the primary color pixel is controlled. In operation, each anode electrode layer 1a, 2a, 3a controls the light-emitting state of the red original pixel 1, the green original pixel 2, and the blue original pixel 3, respectively, and the human eye obtains full color by combining the red, green and blue primary color pixels. The display effect.
但是隨著人們對螢幕細膩程度要求越來越高，解析度不斷提升，目前手機的解析度已經可以達到2K(2560×1440)級別，而電視的解析度甚至可以達到4K(4096×2160)水準，但是AMOLED(Active Matrix/Organic Light Emitting Diode，有源矩陣有機發光二極體面板)則因為有機材料蒸鍍精准度的限制，使得其解析度無法達到LCD之500ppi規格，也因此有了pentile排列或鑽石形排列方式，可參照圖3~圖4所示，圖3為顯示面板的像素呈pentile排列的示意圖，圖4為顯示面板的像素呈鑽石形排列的示意圖。Pentile排列或鑽石形排列方式通過對單色像素的共用，並使得同色次像素之間的間距增大，以因應有機材料蒸鍍時之精准度限制，但是雖然像素之尺寸與解析度不變，但實際ppi值僅為原來之三分之二，進而影響顯示效果。 However, as people become more and more demanding on the screen, the resolution is constantly improving. At present, the resolution of mobile phones can reach 2K (2560×1440), and the resolution of TV can reach 4K (4096×2160). However, AMOLED (Active Matrix/Organic Light Emitting Diode) is limited by the accuracy of vapor deposition of organic materials, so that its resolution cannot reach the 500ppi specification of LCD, and therefore it has a pentile arrangement. For the diamond-shaped arrangement, reference may be made to FIG. 3 to FIG. 4 . FIG. 3 is a schematic diagram showing the pixels of the display panel being arranged in a pentile manner, and FIG. 4 is a schematic diagram showing the pixels of the display panel being arranged in a diamond shape. Pentile arrangement or diamond arrangement is achieved by sharing the monochrome pixels and increasing the spacing between the same color sub-pixels in order to meet the accuracy limitation of the evaporation of organic materials, but although the size and resolution of the pixels are unchanged, However, the actual ppi value is only two-thirds of the original, which affects the display effect.
本發明公開了一種有機發光元件，通過改變單色像素的排列方式，使紅色有機材料和藍色有機材料的發光面積重疊，再分別由不同的陽極對紅色有機材料和藍色有機材料的發光狀態進行控制，在不改變像素尺寸和解析 度情況的前提下，使得AMOLED仍然可以達到與stripe條狀排列相同的實際ppi值。 The invention discloses an organic light-emitting element. By changing the arrangement manner of the monochrome pixels, the light-emitting areas of the red organic material and the blue organic material are overlapped, and then the light-emitting states of the red organic material and the blue organic material are respectively made by different anodes. Control, without changing pixel size and resolution Under the premise of the situation, the AMOLED can still achieve the same actual ppi value as the stripe strip arrangement.
本發明採用的技術方案為：一種有機發光元件，其中，包括若干個像素區，且每個所述像素區均設置有至少三個原色發光層、至少三個陽極電極層以及一陰極電極層，其中：每個所述陽極電極層都用於控制單一所述原色發光層的發光狀態；以及發光效率最為接近的兩個所述原色發光層分別位於所述陰極電極層的上下兩側，使得形成於所述陰極電極層上下兩側的兩個所述原色發光層的發光面積至少部分形成重疊。 The technical solution adopted by the present invention is: an organic light emitting device, comprising: a plurality of pixel regions, and each of the pixel regions is provided with at least three primary color light emitting layers, at least three anode electrode layers, and a cathode electrode layer. Wherein: each of the anode electrode layers is used to control a light-emitting state of a single of the primary color light-emitting layers; and two of the primary color light-emitting layers having the closest luminous efficiency are respectively located on upper and lower sides of the cathode electrode layer, so that The light-emitting areas of the two primary color light-emitting layers on the upper and lower sides of the cathode electrode layer at least partially overlap.
上述的有機發光元件，其中，每個所述原色發光層與所述陰極電極層之間都形成有一電子傳輸層。 In the above organic light-emitting element, an electron transport layer is formed between each of the primary color light-emitting layers and the cathode electrode layer.
上述的有機發光元件，其中，每個所述原色發光層與其對應控制所述原色發光層的所述陽極電極層之間都形成有一電洞傳輸層與一電洞注入層。 In the above organic light-emitting device, a hole transport layer and a hole injection layer are formed between each of the primary color light-emitting layers and the anode electrode layer corresponding to the control of the primary color light-emitting layer.
上述的有機發光元件，其中，所述電洞傳輸層與所述原色發光層接觸，而所述電洞注入層與所述陽極電極層接觸。 In the above organic light-emitting element, the hole transport layer is in contact with the primary color light-emitting layer, and the hole injection layer is in contact with the anode electrode layer.
上述的有機發光元件，其中，位於同一所述電洞傳輸層一側的相鄰兩個所述陽極電極層之間形成有一像素定義層。 In the above organic light-emitting element, a pixel defining layer is formed between two adjacent anode electrode layers on the side of the same hole transport layer.
上述的有機發光元件，其中，各所述像素定義層以及與所述像素定義層接觸的各所述陽極電極層均位於一薄膜電晶體層的上方。 In the above organic light-emitting device, each of the pixel defining layer and each of the anode electrode layers in contact with the pixel defining layer are located above a thin film transistor layer.
上述的有機發光元件，其中，所述薄膜電晶體層位於一玻璃基板的上方。 In the above organic light emitting device, the thin film transistor layer is located above a glass substrate.
上述的有機發光元件，其中，設置於每個所述像素區的三個所述原色發光層至少包括紅、綠、藍發光層，其中，所述紅色發光層和所述藍色發 光層位於所述陰極電極層的兩側，使得所述紅色發光層和所述藍色發光層的發光面積至少部分形成重疊。 In the above organic light-emitting device, the three primary color light-emitting layers disposed in each of the pixel regions include at least red, green, and blue light-emitting layers, wherein the red light-emitting layer and the blue light The light layer is located on both sides of the cathode electrode layer such that the light emitting areas of the red light emitting layer and the blue light emitting layer at least partially overlap.
上述的有機發光元件，其中，所述紅色發光層與所述綠色發光層位於同一電洞傳輸層的一上表面。 In the above organic light-emitting device, the red light-emitting layer and the green light-emitting layer are located on an upper surface of the same hole transport layer.
上述的有機發光元件，其中，所述藍色發光層與所述綠色發光層位於同一電洞傳輸層的上表面。 In the above organic light-emitting device, the blue light-emitting layer and the green light-emitting layer are located on an upper surface of the same hole transport layer.
同時本發明還提供了一種像素陣列，其中，包括多個像素區，每個所述像素區中均至少包括三個原色發光層，其中至少兩個所述原色發光層的發光面積重疊。 The present invention also provides a pixel array, wherein a plurality of pixel regions are included, each of the pixel regions includes at least three primary color light emitting layers, wherein light emitting areas of at least two of the primary color light emitting layers overlap.
上述的像素陣列，其中，每個所述像素區至少包括紅、綠、藍三個顏色相異的原色發光層。 In the above pixel array, each of the pixel regions includes at least three primary color luminescent layers of different colors of red, green, and blue.
上述的像素陣列，其中，所述紅色發光層與所述藍色發光層的發光面積重疊。 In the above pixel array, the red light emitting layer overlaps with the light emitting area of the blue light emitting layer.
上述的像素陣列，其中，每個所述原色發光層均通過一陽極電極層來對該所述原色發光層的一發光狀態進行控制，且各所述原色發光層共用一陰極電極層。 In the above pixel array, each of the primary color light-emitting layers controls an illumination state of the primary color light-emitting layer through an anode electrode layer, and each of the primary color light-emitting layers shares a cathode electrode layer.
由於本發明採用了以上技術方案，通過將兩個不同的發光層設置在陰極電極層的上下兩側，並通過陽極控制層來實現對每個發光層進行控制，可增加子像素的開口率，同時增加了各子像素的發光面積，在像素尺寸和解析度保持不變的前提下，仍然可使AMOLED的ppi達到與stripe排列方式相同的實際值，帶來更為細膩的顯示效果；同時在蒸鍍過程中，發光面積重疊的兩個原色發光層可共用一個有機材料蒸鍍掩膜，進而減少了蒸鍍掩膜的開發成本，從而降低了生產成本，提高經濟效益。 Since the present invention adopts the above technical solution, by setting two different light-emitting layers on the upper and lower sides of the cathode electrode layer and controlling each light-emitting layer through the anode control layer, the aperture ratio of the sub-pixel can be increased. At the same time, the light-emitting area of each sub-pixel is increased. Under the premise that the pixel size and the resolution remain unchanged, the ppi of the AMOLED can still reach the same actual value as the stripe arrangement, resulting in a more delicate display effect; In the evaporation process, the two primary color light-emitting layers with overlapping light-emitting areas can share an organic material evaporation mask, thereby reducing the development cost of the evaporation mask, thereby reducing production costs and improving economic efficiency.
1‧‧‧紅色原像素 1‧‧‧ red original pixels
2‧‧‧綠色原像素 2‧‧‧Green original pixels
3‧‧‧藍色原像素 3‧‧‧Blue original pixel
4、107‧‧‧陰極電極層 4, 107‧‧‧ cathode electrode layer
1a、2a、3a、10a、20a、30a‧‧‧陽極電極層 1a, 2a, 3a, 10a, 20a, 30a‧‧‧ anode electrode layer
10‧‧‧紅色發光層 10‧‧‧Red luminescent layer
20‧‧‧綠色發光層 20‧‧‧Green light layer
30‧‧‧藍色發光層 30‧‧‧Blue light layer
101‧‧‧玻璃基板 101‧‧‧ glass substrate
102‧‧‧薄膜電晶體層 102‧‧‧Thin film transistor layer
103‧‧‧像素定義層 103‧‧‧ pixel definition layer
104a‧‧‧第一電洞注入層 104a‧‧‧First hole injection layer
104b‧‧‧第二電洞注入層 104b‧‧‧Second hole injection layer
105a‧‧‧第一電洞傳輸層 105a‧‧‧First hole transport layer
105b‧‧‧第二電洞傳輸層 105b‧‧‧Second hole transport layer
106a‧‧‧第一電子傳輸層 106a‧‧‧First electronic transport layer
106b‧‧‧第二電子傳輸層 106b‧‧‧Second electron transport layer
通過閱讀參照以下附圖對非限制性實施例所作的詳細描述，本發明及其特徵、外形和優點將會變得更加明顯。在全部附圖中相同的標記指示相同的部分。並未可以按照比例繪製附圖，重點在於示出本發明的主旨。 The invention and its features, aspects and advantages will become more apparent from the detailed description of the accompanying drawings. The same reference numerals are used throughout the drawings to refer to the same parts. The drawings are not drawn to scale and the emphasis is on the subject matter of the invention.
圖1系現有技術中顯示面板像素呈stripe排列的示意圖；圖2係現有技術中顯示面板各子像素區工作的示意圖；圖3係AMOLED顯示面板像素呈pentile排列的示意圖；圖4係AMOLED顯示面板像素呈鑽石型排列的示意圖；圖5係本發明提供的一種顯示面板的截面示意圖；圖6係本發明提供的顯示面板各子像素區工作示意圖；圖7係本發明提供的顯示面板的像素陣列圖。 1 is a schematic diagram of a display panel pixel in a prior art; FIG. 2 is a schematic diagram of the operation of each sub-pixel region of the display panel in the prior art; FIG. 3 is a schematic diagram of a pixel arrangement of the AMOLED display panel; FIG. 4 is an AMOLED display panel. Figure 5 is a schematic cross-sectional view of a display panel provided by the present invention; Figure 6 is a schematic view of the operation of each sub-pixel region of the display panel provided by the present invention; Figure 7 is a pixel array of the display panel provided by the present invention. Figure.
下面結合附圖和具體的實施例對本發明作進一步的說明，但是不作為本發明的限定。 The invention is further illustrated by the following figures and specific examples, but is not to be construed as limiting.
本發明提供了一種有機發光元件，通過改變子像素的排列方式，使發光效率較為接近的兩個原色發光層的發光面積形成重疊，進而在一個子像素實現兩個原色發光層的發光，在像素尺寸和解析度不變的前提下，有效的增加了ppi值。 The present invention provides an organic light-emitting element. By changing the arrangement of sub-pixels, the light-emitting areas of the two primary color light-emitting layers having relatively close luminous efficiencies are overlapped, and the light-emitting layers of the two primary color light-emitting layers are realized in one sub-pixel. Under the premise of the same size and resolution, the ppi value is effectively increased.
具體的，參照圖5所示，一種有機發光元件，包括若干個像素區，每個像素區至少包括三個原色發光層10、20、30以及一陰極電極層107，在本發明的實施例中，採用標準的紅(R)、綠(B)、藍(G)三種顏色的發光層作 為原色發光層進行顯示，其中在該實施例中，10為紅色發光層，20為綠色發光層，30為藍色發光層；其中發光效率最為接近的兩個原色發光層分別位於陰極電極層107的上下兩側，使得該兩個原色發光層的發光面積至少部分形成形成重疊。公知紅色發光層10和藍色發光層30蒸鍍的有機材料最為接近，因此兩者的發光效率也最為接近，故選用紅色發光層10和藍色發光層30分別位於陰極電極層107的上下兩側。其中，紅色發光層10和藍色發光層30並不局限於圖示位置，藍色發光層30可位於陰極電極層107的上方，也可位於陰極電極層107的下方。 Specifically, referring to FIG. 5, an organic light emitting device includes a plurality of pixel regions, each of which includes at least three primary color light emitting layers 10, 20, 30 and a cathode electrode layer 107, in an embodiment of the present invention. , using standard red (R), green (B), blue (G) three color luminescent layer The primary color luminescent layer is displayed, wherein in this embodiment, 10 is a red luminescent layer, 20 is a green luminescent layer, and 30 is a blue luminescent layer; wherein the two primary luminescent layers having the closest luminescent efficiency are respectively located at the cathode electrode layer 107. The upper and lower sides are such that the light-emitting areas of the two primary color light-emitting layers are at least partially formed to form an overlap. It is known that the red light-emitting layer 10 and the blue light-emitting layer 30 are the closest to each other, so that the luminous efficiency of the two is the closest. Therefore, the red light-emitting layer 10 and the blue light-emitting layer 30 are respectively located on the upper and lower sides of the cathode electrode layer 107. side. The red light-emitting layer 10 and the blue light-emitting layer 30 are not limited to the illustrated positions, and the blue light-emitting layer 30 may be located above the cathode electrode layer 107 or below the cathode electrode layer 107.
陰極電極層107與每個原色發光層之間都形成有一電子傳輸層，如圖可見，由於綠色發光層20與紅色發光層10之間均位於陰極電極層107的同一側，因此陰極電極層107與綠色發光層20與和紅色發光層10之間共用第一電子傳輸層106a；而陰極電極層107與藍色發光層30之間則形成有第二電子傳輸層106b。 An electron transport layer is formed between the cathode electrode layer 107 and each of the primary color light-emitting layers. As can be seen, since the green light-emitting layer 20 and the red light-emitting layer 10 are located on the same side of the cathode electrode layer 107, the cathode electrode layer 107 A first electron transport layer 106a is shared between the green light-emitting layer 20 and the red light-emitting layer 10, and a second electron transport layer 106b is formed between the cathode electrode layer 107 and the blue light-emitting layer 30.
為了控制各原色發光層的發光狀態，還需要提供陽極電極層來對每個原色發光層進行控制，且陽極電極層的數量與各原色發光層的數量相同，如圖5所示，包括有三個陽極電極層10a、20a、30a來分別對每個原色發光層進行控制，其中，陽極電極層10a用於控制紅色發光層10的發光狀態，陽極電極層20a用於控制綠色發光層20的發光狀態，陽極電極層30a用於控制藍色發光層30的發光狀態；各原色發光層與控制該發光層的陰極電極層之間都形成有一層電洞傳輸層和電洞注入層，在本發明的該實施例中，由於綠色發光層20與紅色發光層10均位於陰極電極層107的下側，因此綠色發光層20與紅色發光層10與控制該兩個發光層的陽極控制極20a和10a之間形成有共用的第一電洞傳輸層105a和第一電洞注入層104a，而藍色發光層30與控制藍色發光層的陽極電極層30a之間形成有第二電洞傳輸層105b和第二電洞注入層104b。其中，電洞傳輸層與原 色發光層相接觸，電洞注入層與陽極電極層相接觸，其中，由於紅色發光層與綠色發光層的上下位置處可變，因此紅色發光層與綠色發光層可位於同一電洞傳輸層的上表面，或藍色發光層與綠色發光層位於同一電洞傳輸層的上表面；此外，位於同一電洞傳輸層一側的相鄰兩個陽極電極層之間形成有像素定義層103，如圖5所示，控制綠色發光層20以及紅色發光層的10兩個陽極電極層20a和10a之間形成有像素定義層103。 In order to control the light-emitting state of each of the primary color light-emitting layers, it is also necessary to provide an anode electrode layer to control each of the primary color light-emitting layers, and the number of anode electrode layers is the same as the number of the primary color light-emitting layers, as shown in FIG. 5, including three The anode electrode layers 10a, 20a, 30a are respectively controlled for each of the primary color light-emitting layers, wherein the anode electrode layer 10a is for controlling the light-emitting state of the red light-emitting layer 10, and the anode electrode layer 20a is for controlling the light-emitting state of the green light-emitting layer 20. The anode electrode layer 30a is for controlling the light emitting state of the blue light emitting layer 30; a hole transport layer and a hole injection layer are formed between each of the primary color light emitting layers and the cathode electrode layer for controlling the light emitting layer, in the present invention In this embodiment, since both the green light-emitting layer 20 and the red light-emitting layer 10 are located on the lower side of the cathode electrode layer 107, the green light-emitting layer 20 and the red light-emitting layer 10 and the anode control electrodes 20a and 10a that control the two light-emitting layers are A common first hole transport layer 105a and a first hole injection layer 104a are formed therebetween, and a second hole is formed between the blue light-emitting layer 30 and the anode electrode layer 30a that controls the blue light-emitting layer. The transport layer 105b and the second hole injection layer 104b. Among them, the hole transmission layer and the original The color light emitting layer is in contact with the hole injection layer and the anode electrode layer, wherein the red light emitting layer and the green light emitting layer are located at the same hole transport layer because the upper and lower positions of the red light emitting layer and the green light emitting layer are variable. The upper surface, or the blue light emitting layer and the green light emitting layer are located on the upper surface of the same hole transport layer; further, a pixel defining layer 103 is formed between adjacent two anode electrode layers on one side of the same hole transport layer, such as As shown in FIG. 5, a pixel defining layer 103 is formed between the two anode electrode layers 20a and 10a that control the green light-emitting layer 20 and the red light-emitting layer.
各像素定義層103以及與像素定義層接觸的各陽極電極層均位於一薄膜電晶體層102的上方；以及，該薄膜電晶體層102和位於薄膜電晶體層102上方的所有結構均位於一玻璃基板101上。 Each pixel defining layer 103 and each anode electrode layer in contact with the pixel defining layer are located above a thin film transistor layer 102; and the thin film transistor layer 102 and all structures above the thin film transistor layer 102 are located in a glass. On the substrate 101.
圖6為本發明提供的顯示面板單個像素區工作示意圖，結合圖5所示，該單個像素區包括有三個原色發光層，其中10為紅色發光層，20為綠色發光層，30為藍色發光層，該三個原色發光層共用一陰極電極層107，每個原色發光層都通過一陽極控制層來控制其發光狀態，即陽極電極層10a來控制紅色發光層10的發光狀態，陽極電極層20a來控制綠色發光層20的發光狀態，陽極電極層30a來控制藍色發光層30的發光狀態。在有機發光元件工作時，根據色彩顯示的需要來通過陽極電極層10a、20a、30a來控制每個原色發光層10、20、30的工作狀態，使得紅色發光層10和和藍色發光層30進行單個顯示或者同時顯示，並結合綠色發光層20進而實現全彩輸出。 FIG. 6 is a schematic diagram of operation of a single pixel region of a display panel according to the present invention. As shown in FIG. 5, the single pixel region includes three primary color light emitting layers, wherein 10 is a red light emitting layer, 20 is a green light emitting layer, and 30 is a blue light emitting layer. a layer, the three primary color light-emitting layers share a cathode electrode layer 107, and each of the primary color light-emitting layers controls an illumination state thereof through an anode control layer, that is, the anode electrode layer 10a controls the light-emitting state of the red light-emitting layer 10, and the anode electrode layer The light-emitting state of the green light-emitting layer 20 is controlled by 20a, and the light-emitting state of the blue light-emitting layer 30 is controlled by the anode electrode layer 30a. When the organic light emitting element operates, the operational state of each of the primary color light emitting layers 10, 20, 30 is controlled by the anode electrode layers 10a, 20a, 30a according to the need of color display, so that the red light emitting layer 10 and the blue light emitting layer 30 A single display or simultaneous display is performed, and the green light emitting layer 20 is combined to realize full color output.
由於本發明將兩個發光材料最為接近的紅色和藍色發光層上下重疊置於一個像素內，再通過不同的陽極電極層來對紅色和藍色發光層進行發光控制，因此紅色子像素和藍色子像素重疊，進而增加了各子像素的發光面積，提高了AMOLED顯示面板的實際解析度，從而有利於提升高解析度AMOLED的實際ppi值。 Since the present invention places the red and blue light-emitting layers of the two luminescent materials closest to each other in one pixel, and then controls the light emission of the red and blue light-emitting layers through different anode electrode layers, the red sub-pixel and the blue The sub-pixels overlap, which increases the light-emitting area of each sub-pixel, and improves the actual resolution of the AMOLED display panel, thereby facilitating the improvement of the actual ppi value of the high-resolution AMOLED.
同時本發明還提供了一種像素陣列，包括多個像素區，圖7為單個像素的陣列圖，每個像素區至少包括紅、綠、藍三種顏色的原色發光層，如圖7所示，10為紅色發光層，20為綠色發光層，30為藍色發光層；其中至少兩個原色發光層的發光面積重疊，優選的，紅色發光層10與藍原色發光層的30發光面積重疊；其中，每個原色發光層均通過陽極電極層來對該原色發光層的發光狀態進行控制，且各原色發光層共用一陰極電極層(具體可參照圖5和圖6所示)。 At the same time, the present invention further provides a pixel array comprising a plurality of pixel regions, and FIG. 7 is an array diagram of a single pixel, each pixel region including at least three primary colors of red, green and blue light-emitting layers, as shown in FIG. 7, 10 a red light emitting layer, 20 is a green light emitting layer, and 30 is a blue light emitting layer; wherein light emitting areas of at least two primary color light emitting layers overlap; preferably, the red light emitting layer 10 overlaps with 30 light emitting areas of the blue primary color light emitting layer; Each of the primary color light-emitting layers controls the light-emitting state of the primary color light-emitting layer through the anode electrode layer, and each of the primary color light-emitting layers shares a cathode electrode layer (see FIGS. 5 and 6 for details).
結合圖6和圖7可知，本發明通過將紅色發光層10和藍色發光層30設於陰極電極層107的上下兩側，使得紅色發光層和和藍色發光層的發光面積重疊，根據色彩顯示的需要，紅色發光層和和藍色發光層進行單個顯示或者同時顯示，並結合綠色發光層進而實現全彩輸出。 6 and FIG. 7, the present invention provides that the red light-emitting layer 10 and the blue light-emitting layer 30 are disposed on the upper and lower sides of the cathode electrode layer 107 such that the light-emitting areas of the red light-emitting layer and the blue light-emitting layer overlap, according to the color. For the display, the red light-emitting layer and the blue light-emitting layer are displayed in a single display or simultaneously, and combined with the green light-emitting layer to realize full-color output.
綜上所述，由於本發明採用了以上技術方案，通過將兩個發光效率最為接近的紅色和藍色發光層置於一個子像素內，使其發光面積形成重疊，然後通過不同的陽極電極層對每個原色發光層進行控制，可增加子像素的開口率，同時增加了各子像素的發光面積，在像素尺寸和解析度保持不變的前提下，仍然可使AMOLED的ppi達到與stripe排列方式相同的實際值，帶來更為細膩的顯示效果；同時在蒸鍍過程中，發光面積重疊的兩個原色發光層可共用一個有機材料蒸鍍掩膜，進而減少了蒸鍍掩膜的開發成本，從而降低了生產成本，提高經濟效益。 In summary, since the present invention adopts the above technical solution, by placing two red and blue light-emitting layers with the closest luminous efficiency in one sub-pixel, the light-emitting areas are overlapped and then passed through different anode electrode layers. Controlling each primary color illuminating layer can increase the aperture ratio of the sub-pixels, and increase the illuminating area of each sub-pixel. Under the premise that the pixel size and resolution remain unchanged, the ppi of the AMOLED can be aligned with the stripe. The same actual value gives a more delicate display effect. At the same time, in the evaporation process, the two primary color luminescent layers with overlapping illuminating areas can share an organic material evaporation mask, thereby reducing the development of the evaporation mask. Cost, which reduces production costs and improves economic efficiency.
本領域技術人員應該理解，本領域技術人員在結合現有技術以及上述實施例可以實現變化例，這樣的變化例並不影響本發明的實質內容，在此不予贅述。 It should be understood by those skilled in the art that variations may be made by those skilled in the art in combination with the prior art and the above embodiments. Such variations do not affect the substance of the present invention and will not be further described herein.
以上對本發明的較佳實施例進行了描述。需要理解的是，本發明並不局限於上述特定實施方式，其中未盡詳細描述的設備和結構應該理解為用本領域中的普通方式予以實施；任何熟悉本領域的技術人員，在不脫離本發明技術方案範圍情況下，都可利用上述揭示的方法和技術內容對本發明技術方案作出許多可能的變動和修飾，或修改為等同變化的等效實施例，這並不影響本發明的實質內容。因此，凡是未脫離本發明技術方案的內容，依據本發明的技術實質對以上實施例所做的任何簡單修改、等同變化及修飾，均仍屬於本發明技術方案保護的範圍內。 The preferred embodiments of the present invention have been described above. It is to be understood that the invention is not limited to the specific embodiments described above, and that the device and structure are not described in detail. Many variations and modifications of the technical solutions of the present invention can be made, or modified to equivalent variations, without departing from the spirit and scope of the invention. Therefore, any simple modifications, equivalent changes, and modifications of the above embodiments may be made without departing from the spirit and scope of the invention.
10‧‧‧紅色發光層 10‧‧‧Red luminescent layer
20‧‧‧綠色發光層 20‧‧‧Green light layer
30‧‧‧藍色發光層 30‧‧‧Blue light layer
10a、20a、30a‧‧‧陽極電極層 10a, 20a, 30a‧‧‧anode electrode layer
101‧‧‧玻璃基板 101‧‧‧ glass substrate
102‧‧‧薄膜電晶體層 102‧‧‧Thin film transistor layer
103‧‧‧像素定義層 103‧‧‧ pixel definition layer
104a‧‧‧第一電洞注入層 104a‧‧‧First hole injection layer
104b‧‧‧第二電洞注入層 104b‧‧‧Second hole injection layer
105a‧‧‧第一電洞傳輸層 105a‧‧‧First hole transport layer
105b‧‧‧第二電洞傳輸層 105b‧‧‧Second hole transport layer
106a‧‧‧第一電子傳輸層 106a‧‧‧First electronic transport layer
106b‧‧‧第二電子傳輸層 106b‧‧‧Second electron transport layer
107‧‧‧陰極電極層 107‧‧‧Cathode electrode layer
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010123286A (en) * | 2008-11-17 | 2010-06-03 | Canon Inc | Laminated organic el display device |
| TW201320326A (en) * | 2011-11-10 | 2013-05-16 | Chimei Innolux Corp | Organic electroluminescent display and method of fabricating the same |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05290970A (en) * | 1992-04-14 | 1993-11-05 | Fuji Electric Co Ltd | Manufacture of thin film el element |
| JP2003036973A (en) * | 2001-07-19 | 2003-02-07 | Pioneer Electronic Corp | Color display panel |
| US7129466B2 (en) * | 2002-05-08 | 2006-10-31 | Canon Kabushiki Kaisha | Color image pickup device and color light-receiving device |
| JP4793071B2 (en) * | 2005-04-18 | 2011-10-12 | ソニー株式会社 | Display device and manufacturing method of display device |
| JP4619186B2 (en) * | 2005-04-19 | 2011-01-26 | 株式会社半導体エネルギー研究所 | Light emitting device |
| KR100729089B1 (en) * | 2005-08-26 | 2007-06-14 | 삼성에스디아이 주식회사 | Organic light emitting display and method for fabricating the same |
| JP5460107B2 (en) * | 2008-06-20 | 2014-04-02 | キヤノン株式会社 | Laminated organic light emitting device and image display apparatus or digital camera having the same |
| JP2010040501A (en) * | 2008-06-20 | 2010-02-18 | Canon Inc | Organic el device |
| JP2010040507A (en) * | 2008-07-11 | 2010-02-18 | Canon Inc | Organic el display device, and method of manufacturing the same |
| JP2010040191A (en) * | 2008-07-31 | 2010-02-18 | Canon Inc | Organic el display |
| JP2012022836A (en) * | 2010-07-13 | 2012-02-02 | Canon Inc | Organic el display device |
| JP6060530B2 (en) * | 2012-06-12 | 2017-01-18 | ソニー株式会社 | Organic electroluminescent device and display device |
| KR101955621B1 (en) * | 2012-09-21 | 2019-05-31 | 삼성디스플레이 주식회사 | Organic light emitting display panel and fabricating method for the same |
-
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010123286A (en) * | 2008-11-17 | 2010-06-03 | Canon Inc | Laminated organic el display device |
| TW201320326A (en) * | 2011-11-10 | 2013-05-16 | Chimei Innolux Corp | Organic electroluminescent display and method of fabricating the same |
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