CN105742310A - Double-layer pixel light-emitting device - Google Patents

Double-layer pixel light-emitting device Download PDF

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CN105742310A
CN105742310A CN201410749823.4A CN201410749823A CN105742310A CN 105742310 A CN105742310 A CN 105742310A CN 201410749823 A CN201410749823 A CN 201410749823A CN 105742310 A CN105742310 A CN 105742310A
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layer
light emitting
organic light
green
red
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CN201410749823.4A
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张秀玉
刘周英
党鹏乐
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昆山工研院新型平板显示技术中心有限公司
昆山国显光电有限公司
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Priority to CN201410749823.4A priority Critical patent/CN105742310A/en
Publication of CN105742310A publication Critical patent/CN105742310A/en

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Abstract

The invention discloses a double-layer pixel light-emitting device, and the device comprises a TFT layer and red-green-blue three-color organic light-emitting layers located on the TFT layer. The red organic light-emitting layer and the green organic light-emitting layer are located at the same layer, and the blue organic light-emitting layer is located at the other layer parallel to the red organic light-emitting layer and the green organic light-emitting layer. An anode layer or cathode layer is disposed below the red-green-blue three-color organic light-emitting layers, and a cathode layer or anode layer is disposed above the red-green-blue three-color organic light-emitting layers. The TFT layer comprises a red pixel control circuit, a green pixel control circuit, and a blue pixel control circuit. The red pixel control circuit, the green pixel control circuit and the blue pixel control circuit are respectively connected with the anode layer of the red organic light-emitting layer, the anode layer of the green organic light-emitting layer and the anode layer of the blue organic light-emitting layer. The device can increase the effective area of a blue light-emitting material, prolongs the service life of a display, greatly improves the pixel density, and improves the sharpness of the display.

Description

一种双层像素发光装置 A two-layer light emitting device pixel

技术领域 FIELD

[0001] 本发明有关一种显示器结构,特别是指一种蓝色发光材料面积大、且像素密度高的双层像素发光装置。 [0001] The present invention relates to a display structure, particularly to a blue light emitting material having a large area, high pixel density and double-pixel emitting device.

背景技术 Background technique

[0002] 有机发光二极管(OLED)是主动发光器件,相比现在的主流平板显示技术薄膜场效应晶体管液晶显示器(TFT -1XD ),OLED具有对比度高,视角广,功耗低及体积更薄等优点。 [0002] The organic light emitting diode (OLED) is an active light emitting device, as compared to flat panel display technology is now the mainstream of the thin film transistor liquid crystal display (TFT -1XD), OLED has high contrast, wide viewing angle, low power consumption and the like thinner Volume advantage. 但OLED显不器的寿命一直受蓝色发光材料寿命的限制,由于蓝色发光材料寿命较短,特别是蓝色发光材料存在衰减问题,业内通常通过增加蓝色发光材料面积以提升OLED显示器的使用寿命。 But not significantly OLED's life have been limited by the lifetime of the blue light emitting material, due to the short lifetime of blue emissive material, especially in the presence of blue light emitting material attenuation problems, the industry typically by increasing the area of ​​a blue light emitting material in order to enhance the OLED display life. 但在显示器像素密度不变的情况下,受蒸镀工艺等条件限制(掩膜板开口、蒸镀精度等),很难提升发光材料的有效面积。 In the case of the display pixel density is constant, the deposition process or the like by the conditions (a mask plate opening, precision vapor deposition, etc.), it is difficult to enhance the effective area of ​​light emitting material. 且由于受限于像素蒸镀工艺,显示器像素密度受到限制,与液晶显示器相比,主动有机发光显示器(AMOLED)难以具有较高的像素密度。 And since the deposition process is limited by the pixel, the pixel density of the display is limited, as compared with a liquid crystal display, the active organic light emitting display (AMOLED) has a higher pixel density is difficult.

发明内容 SUMMARY

[0003] 有鉴于此,本发明的主要目的在于提供一种具有较高使用寿命,且具有较高像素密度的双层像素发光装置。 [0003] In view of this, the main object of the present invention is to provide a high service life and light-emitting device having a double-layer pixel of a higher pixel density.

[0004] 为达到上述目的,本发明提供一种双层像素发光装置,其包括有TFT层、位于所述TFT层之上的红绿蓝三色有机发光层,其中红色有机发光层和绿色有机发光层位于同一层,蓝色有机发光层位于与红色有机发光层和绿色有机发光层平行的另一层,所述红绿蓝三色有机发光层下方设有阳极层或阴极层,上方设有阴极层或阳极层;所述TFT层包括有红色像素控制电路、绿色像素控制电路及蓝色像素控制电路,所述红色像素控制电路、绿色像素控制电路及蓝色像素控制电路分别对应连接所述红色有机发光层的阳极层、绿色有机发光层的阳极层及蓝色有机发光层的阳极层。 [0004] To achieve the above object, the present invention provides a two-layer pixel light emitting device comprises a TFT layer, a red, green and blue organic light emitting layer over the TFT layer, wherein the red organic emission layer and the green organic a light emitting layer on the same layer, and the blue organic emission layer and a red organic light emitting layer, green organic light emitting layer parallel to the other layer, under the red, green and blue organic light emitting layer is provided with the anode layer or the cathode layer, is provided above anode layer or cathode layer; the layer comprises a red pixel TFT control circuit, the green pixel and the blue pixel circuit controlling a control circuit, the control circuit of the red pixel, green pixel and blue pixel control circuit connected to the control circuit corresponding to each red organic light emitting layer is an anode layer, an anode layer, the anode layer and the green organic light emitting layer is a blue light emitting organic layer.

[0005] 所述蓝色有机发光层位于所述红色有机发光层和绿色有机发光层之上,所述红色有机发光层下方设有与之相连的第一阳极层,所述绿色有机发光层下方设有与之相连的第二阳极层,所述蓝色有机发光层上方设有与之相连的第三阳极层,所述蓝色有机发光层与红色有机发光层和绿色有机发光层之间设有共用阴极层,所述共用阴极连接所述红色有机发光层、绿色有机发光层及蓝色有机发光层,所述红色像素控制电路、绿色像素控制电路及蓝色像素控制电路分别连接对应的第一阳极层、第二阳极层及第三阳极层。 [0005] The blue light emitting organic layer is located above the red organic light emitting layer and a green light emitting organic layer, the organic light emitting layer is provided below the red first anode layer associated therewith, the green organic light emitting layer below provided with a second anode layer connected thereto, is provided above the third layer of the anode connected thereto, is provided between the organic light emitting layer and said blue light emitting layer and a red organic layer, green organic light emitting layer emitting blue organic with a common cathode layer, the common cathode of the red organic light emitting layer, green organic light emitting layer and a blue organic light-emitting layer connected to a control circuit of the red pixel, green pixel and blue pixel control circuit connected to the corresponding first control circuit, respectively, an anode layer, a second anode layer and a third anode layer.

[0006] 所述第一阳极层与第二阳极层为反射层,所述共用阴极层及第三阳极层为透射层。 [0006] the first anode layer and the second anode layer is a reflective layer, the common cathode layer and the anode layer as the third transmission layer.

[0007] 所述蓝色有机发光层位于所述红色有机发光层和绿色有机发光层之下,所述红色有机发光层上方设有与之相连的第一阳极层,所述绿色有机发光层上方设有与之相连的第二阳极层,所述蓝色有机发光层下方设有与之相连的第三阳极层,所述蓝色有机发光层与红色有机发光层和绿色有机发光层之间设有共用阴极层,所述共用阴极连接所述红色有机发光层、绿色有机发光层及蓝色有机发光层,所述红色像素控制电路、绿色像素控制电路及蓝色像素控制电路分别连接对应的第一阳极层、第二阳极层及第三阳极层。 [0007] The blue light emitting organic layer is located below the red organic light emitting layer and a green organic light emitting layer, the red organic light emitting layer provided over the first anode layer associated therewith, the green organic light emitting layer above provided with a second anode layer connected thereto, is provided below said third layer is an anode connected thereto, is provided between the organic light emitting layer and said blue light emitting layer and a red organic layer, green organic light emitting layer emitting blue organic with a common cathode layer, the common cathode of the red organic light emitting layer, green organic light emitting layer and a blue organic light-emitting layer connected to a control circuit of the red pixel, green pixel and blue pixel control circuit connected to the corresponding first control circuit, respectively, an anode layer, a second anode layer and a third anode layer.

[0008] 所述第三阳极层为反射层,所述第一阳极层、所述第二阳极层及所述共用阴极层为透射层。 [0008] The third layer is a reflective anode layer, the first anode layer, the second anode layer and the cathode layer is a common transmission layer.

[0009] 所述蓝色有机发光层与所述红色有机发光层和绿色有机发光层之间设有绝缘层。 An insulating layer between the [0009] blue organic light emitting layer and the red organic light emitting layer and a green light emitting organic layer.

[0010] 所述蓝色有机发光层位于所述绝缘层上方,所述红色有机发光层和绿色有机发光层位于所述绝缘层下方;所述绝缘层与所述蓝色有机发光层之间设有与所述蓝色有机发光层连接的阴极层或阳极层,所述蓝色有机发光层上方设有与所述蓝色有机发光层连接的阳极层或阴极层;所述绝缘层与所述红色有机发光层和绿色有机发光层之间设有与所述红色有机发光层及绿色有机发光层连接的阴极层或阳极层,所述红色有机发光层和绿色有机发光层下方设有与该红色有机发光层及绿色有机发光层连接的阳极层或阴极层。 [0010] The blue organic emission layer is located above the insulating layer, the red organic light emitting layer and a green light-emitting layer located below the organic insulating layer; disposed between the insulating layer and the blue organic light-emitting layer a cathode layer or the anode layer is connected to the blue organic light emitting layer, the blue light emitting layer provided over the organic layer, the anode or the cathode layer is connected to the blue organic light emitting layer; the insulating layer and the provided with the cathode layer or the anode layer is connected to the red organic light emitting layer and a green organic light emitting layer between a red organic light emitting layer and a green organic light emitting layer is provided under the red and the red organic light emitting layer and a green light emitting organic layer the anode layer or the cathode layer and the organic light emitting layer, green organic light emitting layer connection.

[0011] 所述红色有机发光层下方设有与之相连的第一阳极层,所述绿色有机发光层下方设有与之相连的第二阳极层,所述红色有机发光层和绿色有机发光层与所述绝缘层之间设有第一阴极层;所述蓝色有机发光层上方设有与之相连的第二阴极层,所述蓝色有机发光层与所述绝缘层之间设有第三阳极层。 [0011] The red organic light emitting layer is provided below the first anode layer connected thereto, under the green organic light emitting layer is provided with a second anode layer connected thereto, the red organic light emitting layer and a green light emitting organic layer a first cathode layer and between the insulating layer; a second cathode layer is provided above connected thereto, is provided on a blue organic light emitting layer between the insulating layer and the blue organic emission layer three anode layer.

[0012] 所述红色有机发光层或绿色有机发光层位于所述绝缘层上方,所述蓝色有机发光层位于所述绝缘层下方;所述绝缘层与所述蓝色有机发光层之间设有与所述蓝色有机发光层连接的阴极层或阳极层,所述蓝色有机发光层下方设有与所述蓝色有机发光层连接的阳极层或阴极层;所述绝缘层与所述红色有机发光层和绿色有机发光层之间设有与所述红色有机发光层及绿色有机发光层连接的阴极层或阳极层;所述红色有机发光层和绿色有机发光层上方设有与该红色有机发光层及绿色有机发光层连接的阳极层或阴极层。 [0012] The red organic light emitting layer or the green organic light emitting layer located above the insulating layer, the blue light emitting organic layer is positioned beneath the insulating layer; disposed between the insulating layer and the blue organic light-emitting layer a cathode layer or the anode layer is connected to the blue organic light emitting layer, under the blue organic emission layer is provided with the anode layer or the cathode layer is connected to the blue organic light emitting layer; the insulating layer and the It provided with the cathode layer or the anode layer is connected to the red organic light emitting layer and a green organic light emitting layer between a red organic light emitting layer and a green organic emission layer; above the red organic light emitting layer and a green organic light emitting layer is provided with the red the anode layer or the cathode layer and the organic light emitting layer, green organic light emitting layer connection.

[0013] 所述红色有机发光层与所述绝缘层之间设有第一阳极层,所述绿色有机发光层与所述绝缘层之间设有第二阳极层,所述红色有机发光层和绿色有机发光层上方设有与所述红色有机发光层和绿色有机发光层相连的第一阴极层;所述蓝色有机发光层下方设有与之相连的第二阴极层,所述蓝色有机发光层与所述绝缘层之间设有第三阳极层。 [0013] The red organic light emitting layer provided between the insulating layer and the first anode layer, a second anode layer provided between the green organic light emitting layer and the insulating layer, and the red organic light emitting layer green organic light emitting layer provided above the first cathode layer and the red organic light emitting layer and a green organic emission layer connected; the blue organic emission layer is provided below the second cathode layer is connected thereto, the blue organic a third anode layer provided between the light emitting layer and the insulating layer.

[0014] 本发明的双像素发光装置由于蓝色有机发光层独占一层,因此可以增加蓝色发光材料的有效面积,从而提高了显示器的寿命,同时此结构可以使单个像素所占面积减小,显示像素密度大幅提高,从而提升显示器的清晰度。 [0014] The two-pixel emitting device of the invention exclusively because one blue organic light emitting layer, it is possible to increase the effective area of ​​the blue light-emitting material, thereby increasing the lifetime of the display, and so this structure can reduce the area occupied by a single pixel , show a substantial increase in pixel density, so as to enhance sharpness of the display.

附图说明 BRIEF DESCRIPTION

[0015] 图1为本发明双层像素发光装置实施例一的结构示意图; [0015] FIG 1 double pixel configuration diagram of a light emitting device of the embodiment of the present invention;

图2为本发明双层像素发光装置实施例二的结构示意图; Figure 2 pixels bilayer light emitting device according to a second embodiment of a schematic structural diagram of the present invention;

图3为本发明双层像素发光装置实施例三的结构示意图; Figure 3 a schematic view of a double-pixel emitting device structure according to a third embodiment of the present invention;

图4为本发明双层像素发光装置实施例四的结构示意图。 FIG 4 double pixel light-emitting device according to a fourth embodiment of a schematic configuration of the present invention.

具体实施方式 Detailed ways

[0016] 为便于对本发明的结构及达到的效果有进一步的理解,现结合附图并举较佳实施例详细说明如下。 [0016] In order to facilitate further understanding of the structure and the effects achieved by the present invention, now in conjunction with the accompanying drawings and the following detailed description of preferred embodiments.

[0017] 本发明的双层像素发光装置包括有TFT(Thin Film Transistor,薄膜晶体管)层、位于TFT层之上的红绿有机发光层及蓝色有机发光层,该红绿有机发光层包括有位于同一层上的红色有机发光层及绿色有机发光层,该红色有机发光层、绿色有机发光层及蓝色有机发光层上下两侧均设有与所对应的发光层连接的阳极与阴极,该TFT层包括有红色像素控制电路、绿色像素控制电路及蓝色像素控制电路,该红色像素控制电路、绿色像素控制电路及蓝色像素控制电路分别对应连接该红色有机发光层的阳极、绿色有机发光层的阳极及蓝色有机发光层的阳极。 [0017] Double-pixel emitting device of the invention comprises a TFT (Thin Film Transistor, TFT) layer located red and green organic light emitting layer and blue organic light emitting layer over the TFT layer, and the red and green organic light emitting layer comprises where the red organic emission layer and the green light emitting organic layer of the same layer, the red organic light emitting layer, green organic light emitting layer and blue organic emitting layers are provided on both sides of the vertical anode and the cathode is connected to the light-emitting layer corresponding to the red pixel TFT layer comprises a control circuit, the green pixel and the blue pixel circuit controlling a control circuit, the control circuit of the red pixel, green pixel and blue pixel control circuit corresponding to the control circuits connected to the anode of the red organic light emitting layer, green organic light emitting anode the anode of the organic light emitting layer and blue layer.

[0018] 如图1所示,本发明的双层像素发光装置包括TFT层1、位于TFT层I之上的红色有机发光层14、绿色有机发光层16及位于红绿发光层之上的蓝色有机发光层19,该红色有机发光层14与绿色有机发光层16位于同一层,该红色有机发光层14下方设有与之相连的第一阳极层15,该绿色有机发光层16下方设有与之相连的第二阳极层17,该蓝色有机发光层19上方设有与之相连的第三阳极层20,该蓝色有机发光层19与红色有机发光层14和绿色有机发光层16之间设有共用阴极层18,该共用阴极分别连接红色有机发光层14、绿色有机发光层16及蓝色有机发光层19。 [0018] As shown, the double pixels comprising a light emitting device of the present invention 1, 14, 16 and the green organic light emitting layer positioned on the red, green and blue light-emitting layer red organic light emitting layer is located above TFT TFT layer 1 layer I color organic light emitting layer 19, the red organic light emitting layer 14 and the green organic light emitting layer 16 at the same level, below the red organic light emitting layer 14 is provided with the first anode layer 15 connected thereto, is provided below the green organic light emitting layer 16 connected thereto a second anode layer 17, above the blue light emitting organic layer 19 has connected thereto a third anode layer 20, the blue light emitting organic layer 19 and the red organic light emitting layer 14 and the organic light emitting layer 16 of green is provided between the common cathode layer 18, respectively connected to the common cathode 14 red organic light emitting layer, green organic light emitting layer 16 and the blue organic light emitting layer 19. 该TFT层I包括红色像素控制电路11、绿色像素控制电路12及蓝色像素控制电路13,其分别连接所对应的第一阳极层15、第二阳极层17及第三阳极层20。 I layer of the TFT control circuit 11 comprises a red pixel, green pixel and blue pixel control circuit 12, control circuit 13, which are connected to the corresponding first anode layer 15, a second anode layer 17 and the third anode layer 20. 在TFT层I的各像素控制电路作用下,第一阳极层15与共用阴极层18的共同作用下红色有机发光层14可以正常发光,同样的绿色有机发光层16在第二阳极层17和共用阴极层18的共同作用下发光,蓝色有机发光层19在第三阳极层20与共用阴极层18的共同作用下发光。 In each of the pixel TFT layer I under the action of the control circuit 14 may normally bright red organic light emitting layer under the action of the first anode layer 15 and the common cathode layer 18, the same green organic light emitting layer 16 in the second anode layer 17 and the common interaction cathode luminescence layer 18, the blue light emitting organic luminescent layer 19 under the action of the third anode layer 20 and cathode layer 18 in common. 红色有机发光层14、绿色有机发光层16所发出的光透过共用阴极层18、蓝色有机发光层19、第三阳极层20后从正上方发出,第一阳极层15与第二阳极层17为反射层,共用阴极层18及第三阳极层20为透射层,均采用蒸镀方式完成。 Red organic light emitting layer 14, a green light emitting organic layer 16 is emitted 18, the blue light emitting organic layer 19, the third anode layer 20 after emitted from the light transmission directly above the common cathode layer, an anode layer of the first 15 and the second anode layer a reflective layer 17, a common cathode layer 18 and anode layer 20 as the third transmission layer are vapor deposition manner. 同样的,蓝色有机发光层19所发出的光透过第三阳极层20后直接射出,另一部分光朝下经过共用阴极层18后由第一阳极层15与第二阳极层17反射,然后先后经过共用阴极层18第三阳极层20后射出。 Similarly, the blue light emitting organic layer 19 is emitted after the light passes through the third anode layer 20 is directly emitted light downwardly through another portion of the common cathode layer 18 is reflected by the first anode layer 15 and the second anode layer 17, and then 20 has elapsed after the common cathode layer 18 emits a third anode layer. 由于红色有机发光层14、绿色有机发光层16、蓝色有机发光层19所发出的光波长之间不会干扰,其发光效果与现有的显示效果一致。 Since the red light emitting organic layer 14, the green organic light emitting layer 16, without interference between the wavelength of the blue light emitted by the organic light emitting layer 19, the effect is consistent with the conventional light emitting display.

[0019]图2为本发明的双像素发光装置的另外一种实施例,与图1实施例不同之处在于,此结构有四层电极结构。 Another embodiment of two-pixel light-emitting device [0019] FIG. 2 embodiment of the present invention, different from the embodiment of Figure 1 in that the electrode structure in this four-layer structure. 该实施例中双层像素发光装置包括TFT层2、位于TFT层2之上的红色有机发光层25、绿色有机发光层27及位于红绿发光层之上的蓝色有机发光层31,该红色有机发光层25与绿色有机发光层27位于同一层,该红色有机发光层25下方设有与之相连的第一阳极层24,该绿色有机发光层27下方设有与之相连的第二阳极层26,该红色有机发光层25与绿色有机发光层27上方设有第一阴极层28,该第一阴极层28连接该红色有机发光层25与绿色有机发光层27,该蓝色有机发光层31下方设有与之相连的第三阳极层30,该蓝色有机发光层31上方设有与之相连的第二阴极层32,该第三阳极层30与第一阴极层28之间设有绝缘层29。 In this embodiment a double layer of the pixel TFT 2 includes a light emitting device, a red organic light emitting layer positioned above the two TFT layer 25, a green organic light emitting layer 27 and the blue organic emission layer is located above the red and green light-emitting layer 31, the red the organic light emitting layer 25 and the green organic light emitting layer 27 on the same layer, below the red organic light emitting layer 25 is provided with the first anode layer 24 associated therewith, the green organic light emitting layer below the second anode layer 27 has connected thereto 26, the red organic light emitting layer 25 and the layer 27 above the green organic light emitting layer 28 is provided with a first cathode, the first cathode layer 28 connected to the red organic light emitting layer 25 and the green organic light emitting layer 27, the blue light emitting organic layer 31 the third layer 30 is provided below the anode connected thereto, above which the blue light emitting organic layer 31 has connected thereto a second cathode layer 32, 28 is provided between the third insulating layer 30 and the anode of the first cathode layer layer 29. 该TFT层2包括红色像素控制电路21、绿色像素控制电路22及蓝色像素控制电路23,其分别连接所对应的第一阳极层24、第二阳极层26及第三阳极层30。 The TFT layer 2 control circuit 21 comprises a red pixel, green pixel and blue pixel control circuit 22 control circuit 23, which are connected to the corresponding first anode layer 24, a second anode layer 26 and the third anode layer 30. 在TFT层2的各像素控制电路作用下,第一阳极层24与第一阴极层28的共同作用下红色有机发光层25可以正常发光,同样的绿色有机发光层27在第二阳极层26和第一阴极层28的共同作用下发光,蓝色有机发光层31在第三阳极层30与第二阴极层32的共同作用下发光。 Layer of each pixel in the TFT control circuit 2 effects the normal light 25 may be red organic light emitting layer under the action of the first anode layer 24 and the first cathode layer 28, the same green organic light emitting layer 27 and the second anode layer 26 the first layer emits light under the action of the cathode 28, and the blue organic light emitting layer 31 emits light under the action of the third anode layer 30 and cathode layer 32 of a second. 红色有机发光层25、绿色有机发光层27所发出的光透过第一阴极层28、绝缘层29、第三阳极层30及第二阴极层32后从正上方发出,第一阳极层24、第二阳极层26为反射层,第一阴极层28、绝缘层29、第三阳极层30及第二阴极层32为透射层,均采用蒸镀方式完成。 Red organic light emitting layer 25, the green organic light emitting layer 27, the light emitted through the first cathode layer 28, insulating layer 29, third layer 30 and the anode emitted from above the second cathode layer 32, a first anode layer 24, The second anode layer 26 is a reflective layer, a first cathode layer 28, insulating layer 29, the third anode layer 30 and the second transmission layer is a cathode layer 32 are vapor deposition manner. 同样的,蓝色有机发光层31所发出的光透过第二阴极层32后直接射出,另一部分光朝下经过第三阳极层30后由第一阳极层24与第二阳极层26反射,然后先后经过第一阴极层28、绝缘层29、第三阳极层30、第二阴极层32后射出。 Similarly, the blue light emitting organic layer 31 is emitted after the light passes through the second cathode layer 32 is directly emitted downward through another portion of the light 26 reflected by the first anode layer 24 and the second anode layer 30 third anode layer, then successively through the first cathode layer 28, insulating layer 29, the third anode layer 30, cathode layer 32 after the second emission. 由于红色有机发光层25、绿色有机发光层27、蓝色有机发光层31所发出的光波长之间不会干扰,其发光效果与现有的显示效果一致。 Since the red light emitting organic layer 25, a green light emitting organic layer 27, without interference between the wavelength of the blue light emitted from the organic light emitting layer 31, the effect is consistent with the conventional light emitting display.

[0020] 上述图2实施例中,各有机发光层所连接的阳极与阴极并不限于阴极位于发光层上方,阳极位于发光层下方,阴极也可以位于发光层下方,阳极也可以位于发光层上方,如图3所示,红色有机发光层25上方为第一阳极层24,绿色有机发光层27上方为第二阳极层26,红色有机发光层25与绿色有机发光层27下方为第一阴极层28,此时第一阴极层28为发射层,第一阳极层24与第二阳极层26为透射层。 [0020] FIG. 2 above-described embodiment, the anode and the cathode of each organic light-emitting layer is not limited to a cathode connection is located above the light emitting layer and an anode located below a light emitting layer, the cathode may be located below the light emitting layer, the anode may be positioned above the light-emitting layer as shown in FIG, 25 is above the first anode layer 24, over the green organic light emitting layer 273 is a red organic light emitting layer, the second anode layer 26, a red light emitting organic layer 25 and the lower green organic light emitting layer 27 is of a first cathode layer 28, a first cathode layer 28 at this time is an emission layer, the first anode layer 24 and the second anode layer 26 is a transmission layer.

[0021] 本发明中并不限于蓝色有机发光层位于红绿有机发光层上方,如图4所述,蓝色有机发光层19位于红绿有机发光层下方,该蓝色有机发光层19下方为第三阳极层20,该红色有机发光层14与绿色有机发光层16上方分别为第一阳极层15与第二阳极层17,此时该第三阳极层20为反射层,该第一阳极层15与第二阳极层17为透射层。 [0021] The present invention is not limited to the blue organic emission layer is located above the red and green organic light emitting layer, as shown in FIG. 4, the blue organic light emitting layer 19 positioned below the red and green organic light emitting layer, the blue light emitting organic layer 19 below a third anode layer 20, the red organic light emitting layer 14 and the upper green organic light emitting layer 16 are first anode layer 15 and the second anode layer 17, at which point the third layer 20 is a reflective anode layer, the first anode layer 15 and anode layer 17 as a second transmission layer.

[0022] 本发明的双像素发光装置由于蓝色有机发光层独占一层(即蓝色发光面积可以提升至一个像素面积的大小),因此可以增加蓝色发光材料的有效面积,从而提高了该材料的使用寿命,也就增加了显示器的寿命,同时此结构可以使单个像素所占面积减小,显示像素密度大幅提高,从而提升显示器的清晰度。 [0022] The two-pixel emitting device of the invention exclusively because one blue organic light emitting layer (i.e., blue light emission area can be increased to the size of a pixel area), it is possible to increase the effective area of ​​the blue light-emitting material, thereby increasing the life of the material, also increases the lifetime of the display, and so this structure can reduce the area occupied by a single pixel, a substantial increase in the density of display pixels, thereby enhancing the sharpness of the display.

[0023] 以上所述,仅为本发明的较佳实施例而已,并非用于限定本发明的保护范围。 [0023] The above are only preferred embodiments of the present invention but are not intended to limit the scope of the present invention.

Claims (10)

1.一种双层像素发光装置,其特征在于,其包括有TFT层、位于所述TFT层之上的红绿蓝三色有机发光层,其中红色有机发光层和绿色有机发光层位于同一层,蓝色有机发光层位于与红色有机发光层和绿色有机发光层平行的另一层,所述红绿蓝三色有机发光层下方设有阳极层或阴极层,上方设有阴极层或阳极层;所述TFT层包括有红色像素控制电路、绿色像素控制电路及蓝色像素控制电路,所述红色像素控制电路、绿色像素控制电路及蓝色像素控制电路分别对应连接所述红色有机发光层的阳极层、绿色有机发光层的阳极层及蓝色有机发光层的阳极层。 A light emitting device of double pixels, characterized in that it comprises a TFT layer, a red, green and blue organic light emitting layer over the TFT layer, wherein the red organic light emitting layer and a green organic emission layer on the same layer , and the blue organic light emitting layer is a red organic emission layer and a green light emitting organic layer is parallel to the other layer, under the red, green and blue organic light emitting layer is provided with the anode layer or the cathode layer, it is provided over the cathode layer or the anode layer ; the TFT layer comprises a red pixel control circuit, the green pixel and the blue pixel circuit controlling a control circuit, the control circuit of the red pixel, green pixel and blue pixel control circuits respectively connected to the control circuit of the red light emitting organic layer anode layer, an anode layer, the anode layer and the green organic light emitting layer is a blue light emitting organic layer.
2.如权利要求1所述的双层像素发光装置,其特征在于,所述蓝色有机发光层位于所述红色有机发光层和绿色有机发光层之上,所述红色有机发光层下方设有与之相连的第一阳极层,所述绿色有机发光层下方设有与之相连的第二阳极层,所述蓝色有机发光层上方设有与之相连的第三阳极层,所述蓝色有机发光层与红色有机发光层和绿色有机发光层之间设有共用阴极层,所述共用阴极连接所述红色有机发光层、绿色有机发光层及蓝色有机发光层,所述红色像素控制电路、绿色像素控制电路及蓝色像素控制电路分别连接对应的第一阳极层、第二阳极层及第三阳极层。 2. Double-pixel light emitting device according to claim 1, wherein the blue organic emission layer positioned on the organic emission layer and a red green organic light emitting layer is provided under the red light emitting organic layer a first anode layer associated therewith, the green organic light emitting layer is provided below the second anode layer connected thereto, said blue light emitting layer provided over the organic layer, the third anode connected thereto, the blue It is provided between the organic light emitting layer and the red organic light emitting layer and a green light emitting organic layer, the common cathode layer, the common cathode connection of the red organic light emitting layer, green organic light emitting layer and a blue organic emission layer, the red pixel control circuit , green pixel and blue pixel control circuit are connected to a control circuit corresponding to a first anode layer, a second anode layer and a third anode layer.
3.如权利要求2所述的双层像素发光装置,其特征在于,所述第一阳极层与第二阳极层为反射层,所述共用阴极层及第三阳极层为透射层。 Double pixel light-emitting device as claimed in claim 2, wherein the first anode layer and the second anode layer is a reflective layer, the common cathode layer and the anode layer as the third transmission layer.
4.如权利要求1所述的双层像素发光装置,其特征在于,所述蓝色有机发光层位于所述红色有机发光层和绿色有机发光层之下,所述红色有机发光层上方设有与之相连的第一阳极层,所述绿色有机发光层上方设有与之相连的第二阳极层,所述蓝色有机发光层下方设有与之相连的第三阳极层,所述蓝色有机发光层与红色有机发光层和绿色有机发光层之间设有共用阴极层,所述共用阴极连接所述红色有机发光层、绿色有机发光层及蓝色有机发光层,所述红色像素控制电路、绿色像素控制电路及蓝色像素控制电路分别连接对应的第一阳极层、第二阳极层及第三阳极层。 4. Double pixel light emitting device according to claim 1, wherein the blue light emitting organic layer is located below the red organic light emitting layer and a green organic light emitting layer, the red organic light emitting layer provided above a first anode layer associated therewith, the green organic light emitting layer provided over the second anode layer connected thereto, the blue organic light emitting layer is provided below the third layer is an anode connected thereto, the blue It is provided between the organic light emitting layer and the red organic light emitting layer and a green light emitting organic layer, the common cathode layer, the common cathode connection of the red organic light emitting layer, green organic light emitting layer and a blue organic emission layer, the red pixel control circuit , green pixel and blue pixel control circuit are connected to a control circuit corresponding to a first anode layer, a second anode layer and a third anode layer.
5.如权利要求4所述的双层像素发光装置,其特征在于,所述第三阳极层为反射层,所述第一阳极层、所述第二阳极层及所述共用阴极层为透射层。 5. The light emitting device of claim 4, wherein the double-pixel to the first anode layer, characterized in that said third layer is a reflective anode layer, the second anode layer and the cathode layer transmissive common Floor.
6.如权利要求1所述的双层像素发光装置,其特征在于,所述蓝色有机发光层与所述红色有机发光层和绿色有机发光层之间设有绝缘层。 Double pixel light-emitting device as claimed in claim 1, wherein said insulating layer is provided between the blue light emitting organic layer and the red organic light emitting layer and a green light emitting organic layer.
7.如权利要求6所述的双层像素发光装置,其特征在于,所述蓝色有机发光层位于所述绝缘层上方,所述红色有机发光层和绿色有机发光层位于所述绝缘层下方;所述绝缘层与所述蓝色有机发光层之间设有与所述蓝色有机发光层连接的阴极层或阳极层,所述蓝色有机发光层上方设有与所述蓝色有机发光层连接的阳极层或阴极层;所述绝缘层与所述红色有机发光层和绿色有机发光层之间设有与所述红色有机发光层及绿色有机发光层连接的阴极层或阳极层,所述红色有机发光层和绿色有机发光层下方设有与该红色有机发光层及绿色有机发光层连接的阳极层或阴极层。 7. The light emitting device of double pixels claim 6, characterized in that the blue organic emission layer is located above the insulating layer, the red organic light emitting layer and a green light-emitting layer located below the organic insulating layer ; provided with the cathode layer or the anode layer is connected to the blue organic light emitting layer between the insulating layer and the blue organic light emitting layer provided over the organic light emitting layer of the blue and the blue organic light emitting the anode layer or the cathode layer layer connection; is provided between the insulating layer and the red organic light emitting layer and a green light emitting organic layer of the cathode layer or the anode layer is connected to the red organic light emitting layer and a green organic light emitting layer, the below the red organic light emitting layer and said green organic light emitting layer is provided with the anode layer or the cathode layer is connected to the red organic light emitting layer and a green organic light emitting layer.
8.如权利要求7所述的双层像素发光装置,其特征在于,所述红色有机发光层下方设有与之相连的第一阳极层,所述绿色有机发光层下方设有与之相连的第二阳极层,所述红色有机发光层和绿色有机发光层与所述绝缘层之间设有第一阴极层;所述蓝色有机发光层上方设有与之相连的第二阴极层,所述蓝色有机发光层与所述绝缘层之间设有第三阳极层。 8. The light emitting apparatus according to the double-pixel to claim 7, wherein said lower layer is provided with a first red organic light emitting layer is an anode connected thereto, the green organic light emitting layer is provided below connected thereto second anode layer, the cathode layer is provided between the first organic emission layer and a red green organic light emitting layer and the insulating layer; blue organic light emitting layer above the cathode is provided with a second layer connected thereto, the the third layer is provided between said anode layer and said blue light emitting organic insulating layer.
9.如权利要求6所述的双层像素发光装置,其特征在于,所述红色有机发光层或绿色有机发光层位于所述绝缘层上方,所述蓝色有机发光层位于所述绝缘层下方;所述绝缘层与所述蓝色有机发光层之间设有与所述蓝色有机发光层连接的阴极层或阳极层,所述蓝色有机发光层下方设有与所述蓝色有机发光层连接的阳极层或阴极层;所述绝缘层与所述红色有机发光层和绿色有机发光层之间设有与所述红色有机发光层及绿色有机发光层连接的阴极层或阳极层;所述红色有机发光层和绿色有机发光层上方设有与该红色有机发光层及绿色有机发光层连接的阳极层或阴极层。 9. The light emitting device of double pixels claim 6, characterized in that the red organic light emitting layer or the green organic light emitting layer located above the insulating layer, the blue organic light emitting layer positioned below the insulating layer ; provided with the cathode layer or the anode layer is connected to the blue organic light emitting layer between the insulating layer and the blue organic emission layer, it is provided below the blue light emitting organic layer and the blue organic light emitting the anode layer or the cathode layer layer connection; provided with the cathode layer or the anode layer is connected to the red organic light emitting layer and a green organic light emitting layer between the insulating layer and the red organic light emitting layer and a green organic emission layer; the red organic emission layer and above said green organic light emitting layer is provided with the anode layer or the cathode layer is connected to the red organic light emitting layer and a green organic light emitting layer.
10.如权利要求9所述的双层像素发光装置,其特征在于,所述红色有机发光层与所述绝缘层之间设有第一阳极层,所述绿色有机发光层与所述绝缘层之间设有第二阳极层,所述红色有机发光层和绿色有机发光层上方设有与所述红色有机发光层和绿色有机发光层相连的第一阴极层;所述蓝色有机发光层下方设有与之相连的第二阴极层,所述蓝色有机发光层与所述绝缘层之间设有第三阳极层。 Double pixel emitting device as claimed in claim 9, wherein the first anode layer is provided between the red organic light emitting layer and the insulating layer, the green organic light emitting layer and said insulating layer is provided between the second anode layer, the organic emission layer and a red green organic light emitting layer provided over the first cathode layer and the red organic light emitting layer and a green organic emission layer connected; below the blue organic emission layer the second cathode layer connected thereto is provided, a third anode layer provided between the light emitting layer and blue organic insulating layer.
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