WO2017049534A1 - 发光器件 - Google Patents
发光器件 Download PDFInfo
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- WO2017049534A1 WO2017049534A1 PCT/CN2015/090565 CN2015090565W WO2017049534A1 WO 2017049534 A1 WO2017049534 A1 WO 2017049534A1 CN 2015090565 W CN2015090565 W CN 2015090565W WO 2017049534 A1 WO2017049534 A1 WO 2017049534A1
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- Prior art keywords
- layer
- light emitting
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- emitting material
- light
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- 239000000758 substrate Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 161
- 238000002347 injection Methods 0.000 claims description 21
- 239000007924 injection Substances 0.000 claims description 21
- 238000005424 photoluminescence Methods 0.000 claims description 21
- 230000005525 hole transport Effects 0.000 claims description 14
- 238000005286 illumination Methods 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
- H10K50/125—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light
Definitions
- the present invention relates to a light source, and more particularly to a light emitting device.
- WOLED White Organic Light Emitting Diode, a white light organic light emitting diode device
- WOLEDs are generally classified into two types: a single light emitting layer and a multiple light emitting layer.
- the WOLED of a single luminescent layer generally achieves mixed white light by doping a certain proportion of different color luminescent materials.
- the doping concentration of the luminescent material in the WOLED of the single luminescent layer is difficult to control, and there is interference between different luminescent materials. It is difficult to obtain a high white color purity.
- the WOLED of the multi-emissive layer is generally formed by stacking red, green and blue primary color materials, and the light of each color is superposed to form white light.
- the preparation process of the multi-luminescent layer WOLED is complicated, and the energy between the layers is mutually absorbed, thereby causing a decrease in luminous efficiency.
- a light emitting device comprising: a substrate comprising a first surface and a second surface; an ultraviolet light source generating panel, wherein the ultraviolet light source generating panel is disposed on the first surface, the ultraviolet light a light source generating panel for generating ultraviolet light; a photoluminescent layer, the photoluminescent layer being disposed on the second surface, the photoluminescent layer being configured to generate white light under illumination of the ultraviolet light;
- the light source generating panel comprises: an anode layer; a cathode layer; an electro-violet light-emitting material layer, the electro-optic ultraviolet light-emitting material layer is disposed between the anode layer and the cathode layer, and the electro-optic ultraviolet light is emitted a material layer for generating the ultraviolet light when there is a predetermined voltage difference between the anode layer and the cathode layer; and a power source for applying a voltage to the anode layer and the cathode layer to cause the anode
- the predetermined voltage
- the photoluminescent layer includes: a first layer, the photo green light emitting material, the photo red light emitting material, and the photo blue light emitting material are both located at the first In the layer.
- the photo blue light emitting material, the photo green light emitting material, and the photo red light emitting material are all disposed in the first layer in the form of a block or a particle.
- the combination of the photoluminescence luminescent material, the photo luminescent green luminescent material, and the photo illuminating luminescent material is arranged in a one-dimensional array.
- the combination of the photoluminescence luminescent material, the photo luminescent green luminescent material, and the photo illuminating luminescent material is arranged in a two-dimensional array.
- the photo blue light emitting material, the photo green light emitting material, and the photo red light emitting material are randomly mixed in the first layer.
- the photoluminescent layer includes: a second layer, the photo green light emitting material is located in the second layer; and a third layer, the photo red light emitting material Located in the third layer; the fourth layer, the photo blue light emitting material is disposed in the fourth layer.
- a light emitting device comprising: a substrate comprising a first surface and a second surface; an ultraviolet light source generating panel, wherein the ultraviolet light source generating panel is disposed on the first surface, the ultraviolet light The light source generating panel is configured to generate ultraviolet light; the photoluminescent layer is disposed on the second surface, and the photoluminescent layer is configured to generate white light under the irradiation of the ultraviolet light.
- the ultraviolet light source generating panel includes: an anode layer; a cathode layer; an electro-optic ultraviolet light-emitting material layer, wherein the electro-optic ultraviolet light-emitting material layer is disposed on the anode layer and the cathode layer
- the electro-optic ultraviolet light-emitting material layer is configured to generate the ultraviolet light when a predetermined voltage difference is between the anode layer and the cathode layer; and a power source for the anode layer and the cathode A voltage is applied to the layer such that the predetermined voltage difference is between the anode layer and the cathode layer.
- the ultraviolet light source generating panel further includes: a hole injection layer; a hole transport layer; an electron transport layer; and an electron injection layer; wherein the hole injection layer is disposed on the anode layer and Between the hole transporting layers, the electro-optic ultraviolet light-emitting material layer is disposed between the hole transporting layer and the electron transporting layer, the electron injecting layer is disposed on the electron transporting layer and the Between the cathode layers.
- the photoluminescent layer comprises: a photoluminescence blue light emitting material for emitting blue light under irradiation of the ultraviolet light; a photoluminescence green light emitting material, the light The green light-emitting material is for emitting green light under irradiation of the ultraviolet light; and the photo-induced red light-emitting material is for emitting red light under irradiation of the ultraviolet light.
- the photoluminescent layer includes: a first layer, the photo green light emitting material, the photo red light emitting material, and the photo blue light emitting material are both located at the first In the layer.
- the photo blue light emitting material, the photo green light emitting material, and the photo red light emitting material are all disposed in the first layer in the form of a block or a particle.
- the combination of the photoluminescence luminescent material, the photo luminescent green luminescent material, and the photo illuminating luminescent material is arranged in a one-dimensional array.
- the combination of the photoluminescence luminescent material, the photo luminescent green luminescent material, and the photo illuminating luminescent material is arranged in a two-dimensional array.
- the photo blue light emitting material, the photo green light emitting material, and the photo red light emitting material are randomly mixed in the first layer.
- the photoluminescent layer includes: a second layer, the photo green light emitting material is located in the second layer; and a third layer, the photo red light emitting material Located in the third layer; the fourth layer, the photo blue light emitting material is disposed in the fourth layer.
- the sum of the projected areas of the photo-green light-emitting materials is the first area
- the sum of the projected areas of the photo-induced red light-emitting materials is a second area
- a sum of projected areas of the photo-induced blue light-emitting materials being a third area
- (any one of the first area, the second area, and the third area) (the first The other of the one area, the second area, and the third area) is a predetermined ratio
- the predetermined ratio is in a range of 90% to 110%.
- the green light yield of the photo-green light-emitting material corresponds to the first area and the first thickness of the layer in which the photo-green light-emitting material is located; a red light yield of the photoluminescent material corresponding to the second area and a second thickness of the layer in which the photoluminescent red light emitting material is present; a blue light yield of the photoluminescent blue light emitting material and the first The three areas and the third thickness of the layer in which the photoluminescence luminescent material is located correspond.
- the light-emitting device of the present invention can be produced by a relatively simple process, and has high luminous stability and long service life.
- FIG. 1 is a schematic view of a first embodiment of a light emitting device of the present invention
- FIG. 2 is a schematic view of a second embodiment of a light emitting device of the present invention.
- Figure 3 is a schematic illustration of a first embodiment of the photoluminescent layer of Figure 1 or Figure 2;
- Figure 4 is a schematic view of the first embodiment of the A-A' section of Figure 3;
- Figure 5 is a schematic view of a second embodiment of the A-A' section of Figure 3;
- Figure 6 is a schematic illustration of a second embodiment of the photoluminescent layer of Figure 1 or Figure 2;
- Figure 7 is a schematic illustration of a third embodiment of the photoluminescent layer of Figure 1 or Figure 2.
- the light emitting device of the present invention may be an OLED (Organic Light Emitting) Diode, organic light emitting diode device).
- the light emitting device is for generating white light.
- the white light generated by the light emitting device may be used for illumination or as a backlight of a display panel.
- FIG. 1 there is shown a schematic view of a first embodiment of a light emitting device of the present invention.
- the light emitting device of the present embodiment includes a substrate 101, an ultraviolet light source generating panel 102, and a photoluminescent layer 103.
- the substrate 101 includes a first surface and a second surface.
- the ultraviolet light source generating panel 102 is disposed on the first surface, and the ultraviolet light source generating panel 102 is configured to generate ultraviolet light.
- the photoluminescent layer 103 is disposed on the second surface, and the photoluminescent layer 103 is configured to generate the white light under illumination of the ultraviolet light.
- the ultraviolet light source generating panel 102 includes an anode layer 1023, a cathode layer 1021, an electroluminescent light emitting material layer 1022, and a power source 1024.
- the anode layer 1023 is disposed on the first surface.
- the electro-optic luminescent material layer 1022 is disposed between the anode layer 1023 and the cathode layer 1021, and the electro-optic luminescent material layer 1022 is used in the anode layer 1023 and the cathode layer 1021.
- the ultraviolet light is generated when there is a predetermined voltage difference therebetween.
- the power source 1024 is for applying a voltage to the anode layer 1023 and the cathode layer 1021 such that the predetermined voltage difference is between the anode layer 1023 and the cathode layer 1021.
- the photoluminescent layer 103 includes a photo-induced blue luminescent material 1031, a photo-induced green luminescent material 1032, and a photo-induced red luminescent material 1033.
- the photoluminescence luminescent material 1031 is for emitting (generating) blue light under irradiation of the ultraviolet light.
- the photoluminescence luminescent material 1032 is for emitting (generating) green light under the irradiation of the ultraviolet light.
- the photo-induced red light-emitting material 1033 is for emitting (generating) red light under the irradiation of the ultraviolet light.
- the photoluminescent layer 103 is configured to cause the generated red light and the green light and the blue light to be mixed to form the white light.
- FIG. 3 is a schematic view of a first embodiment of the photoluminescent layer 103 of FIG. 1 or FIG. 2, and FIG. 4 is a first embodiment of the AA' cross section of FIG.
- FIG. 5 is a schematic view of a second embodiment of the AA' cross section of FIG. 3.
- the photoluminescent layer 103 includes a first layer 401, and the photoluminescent green light emitting material 1032, the photo red light emitting material 1033, and the photoluminescence blue light emitting material 1031 are both located.
- the first layer 401 as shown in FIG.
- the photo blue light emitting material 1031, the photo red light emitting material 1033 and the photo green light emitting material 1032 are all in blocks (as shown in FIG. 3 or FIG. 6) or particles (as shown in FIG. 7).
- the form is set in the first layer 401.
- the sum of the projected areas of the photo-green light-emitting material 1032 (block or particle) is the first area, and the photo-induced red light-emitting material 1033 (block)
- the sum of the projected areas of the particles or particles is the second area, and the sum of the projected areas of the photoluminescence luminescent material 1031 (blocks or particles) is the third area.
- the predetermined ratio is in the range of 90% to 110%.
- the predetermined ratio is 90%, 92%, 94%, 95%, 97%, 99%, 100%, 102%, 104%, 105%, 107%, 109%, 110%.
- the combination of the photo blue light emitting material 1031, the photo green light emitting material 1032, and the photo red light emitting material 1033 is arranged in a one-dimensional array or a two-dimensional array, as shown in FIG. 3 or FIG. .
- the photo blue light emitting material 1031, the photo green light emitting material 1032, and the photo red light emitting material 1033 are randomly mixed in the first layer 401.
- the photoluminescent layer 103 includes a second layer 501, a third layer 502, and a fourth layer 503.
- the photoluminescent green light emitting material 1032 is located in the second layer 501.
- the photo red luminescent material 1033 is located in the third layer 502.
- the photo blue light emitting material 1031 is disposed in the fourth layer 503.
- a green light yield of the photo-green light-emitting material 1032 and the first area and a layer in which the photo-green light-emitting material 1032 is located (the first layer 401 or the second layer)
- the first thickness of 501) corresponds.
- a red light yield of the photo red light emitting material 1033 and the second area and a layer in which the photo red light emitting material 1033 is located (the first layer 401 or the third layer)
- the second thickness of 502) corresponds.
- a blue light output rate of the photoluminescence blue light-emitting material 1031 and the third area and a layer (the first layer 401 or the fourth layer 503) where the photo-induced blue light-emitting material 1031 is located The third thickness corresponds.
- the size of the first area of the photo-green light-emitting material 1032 in the photoluminescent layer 103 and the size of the first thickness, and the number of the photo-induced red light-emitting material 1033 The size of the two areas and the size of the second thickness, and the size of the third area of the photoluminescence luminescent material 1031 and the size of the third thickness, can achieve color purity of the generated white light Regulation.
- the generation of the white light source is realized, and the influence of the conventional WOLED on the light-emitting process of the light-emitting device due to factors such as material doping and multi-layer complex structure is avoided, which is advantageous for simplifying the manufacture of the light-emitting device.
- the process is beneficial to increase the stability and service life of the light emitting device.
- FIG. 2 is a schematic view of a second embodiment of a light emitting device of the present invention. This embodiment is similar to the first embodiment described above, except that:
- the ultraviolet light source generating panel 102 further includes a hole injection layer 201, a hole transport layer 202, an electron transport layer 203, and an electron injection layer 204.
- the hole injection layer 201 is disposed between the anode layer 1023 and the hole transport layer 202, and the hole transport layer 202 is disposed on the hole injection layer 201 and the electro-optic light.
- the electro-optic luminescent material layer 1022 is disposed between the hole transport layer 202 and the electron transport layer 203, and the electron transport layer 203 is disposed on the electro-optic ultraviolet light.
- the electron injection layer 204 is disposed between the electron transport layer 203 and the cathode layer 1021.
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- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
发光器件包括基板（101）、紫外光光源生成面板（102）和光致发光层（103）。紫外光光源生成面板（102）设置于基板（101）的第一表面，紫外光光源生成面板（102）用于生成紫外光；光致发光层（103）设置于基板（101）的第二表面，光致发光层（103）用于在紫外光的照射下生成白光。发光器件的制作工艺简单，并且具有较高的发光稳定性和较长的使用寿命。
Description
本发明涉及一种光源，特别涉及一种发光器件。
传统的WOLED（White Organic Light Emitting
Diode，白光有机发光二极管器件）可作为光源应用于照明领域或显示领域。
传统的WOLED一般分为单发光层和多发光层两种。其中，单发光层的WOLED一般是通过掺杂一定配比的不同颜色的发光材料来实现混合白光，这种单发光层的WOLED中的发光材料的掺杂浓度难以控制，不同发光材料间存在干扰，难以获得较高白光色纯度。多发光层的WOLED一般是通过将红绿蓝三基色材料堆叠，各色光叠加形成白光，多发光层的WOLED的制备工艺复杂，各层间的能量会相互吸收，从而导致发光效率降低。
综上，传统的WOLED制备工艺复杂，白光发光效率较低，效果较差。
故，有必要提出一种新的技术方案，以解决上述技术问题。
本发明的目的在于提供一种发光器件，其可通过较简单的工艺制得，并且具有较高的发光稳定性和较长的使用寿命。
一种发光器件，所述发光器件包括：基板，所述基板包括第一表面和第二表面；紫外光光源生成面板，所述紫外光光源生成面板设置于所述第一表面，所述紫外光光源生成面板用于生成紫外光；光致发光层，所述光致发光层设置于所述第二表面，所述光致发光层用于在所述紫外光的照射下生成白光；所述紫外光光源生成面板包括：阳极层；阴极层；电致紫外光发光材料层，所述电致紫外光发光材料层设置于所述阳极层和所述阴极层之间，所述电致紫外光发光材料层用于在所述阳极层和所述阴极层之间具有预定电压差时生成所述紫外光；以及电源，用于向所述阳极层和所述阴极层施加电压，以使所述阳极层和所述阴极层之间具有所述预定电压差；所述紫外光光源生成面板还包括：空穴注入层；空穴传输层；电子传输层；以及电子注入层；其中，所述空穴注入层设置于所述阳极层和所述空穴传输层之间，所述电致紫外光发光材料层设置于所述空穴传输层和所述电子传输层之间，所述电子注入层设置于所述电子传输层和所述阴极层之间；所述光致发光层包括：光致蓝光发光材料，所述光致蓝光发光材料用于在所述紫外光的照射下发出蓝光；光致绿光发光材料，所述光致绿光发光材料用于在所述紫外光的照射下发出绿光；以及光致红光发光材料，所述光致红光发光材料用于在所述紫外光的照射下发出红光。
在上述发光器件中，所述光致发光层包括：第一层别，所述光致绿光发光材料、所述光致红光发光材料和所述光致蓝光发光材料均位于所述第一层别中。
在上述发光器件中，所述光致蓝光发光材料、所述光致绿光发光材料和所述光致红光发光材料均以区块或颗粒的形式设置于所述第一层别中。
在上述发光器件中，所述光致蓝光发光材料、所述光致绿光发光材料和所述光致红光发光材料的组合以一维阵列的形式排列。
在上述发光器件中，所述光致蓝光发光材料、所述光致绿光发光材料和所述光致红光发光材料的组合以二维阵列的形式排列。
在上述发光器件中，所述光致蓝光发光材料、所述光致绿光发光材料和所述光致红光发光材料随机混合于所述第一层别中。
在上述发光器件中，所述光致发光层包括：第二层别，所述光致绿光发光材料位于所述第二层别中；以及第三层别，所述光致红光发光材料位于所述第三层别中；第四层别，所述光致蓝光发光材料设置于所述第四层别中。
一种发光器件，所述发光器件包括：基板，所述基板包括第一表面和第二表面；紫外光光源生成面板，所述紫外光光源生成面板设置于所述第一表面，所述紫外光光源生成面板用于生成紫外光；光致发光层，所述光致发光层设置于所述第二表面，所述光致发光层用于在所述紫外光的照射下生成白光。
在上述发光器件中，所述紫外光光源生成面板包括：阳极层；阴极层；电致紫外光发光材料层，所述电致紫外光发光材料层设置于所述阳极层和所述阴极层之间，所述电致紫外光发光材料层用于在所述阳极层和所述阴极层之间具有预定电压差时生成所述紫外光；以及电源，用于向所述阳极层和所述阴极层施加电压，以使所述阳极层和所述阴极层之间具有所述预定电压差。
在上述发光器件中，所述紫外光光源生成面板还包括：空穴注入层；空穴传输层；电子传输层；以及电子注入层；其中，所述空穴注入层设置于所述阳极层和所述空穴传输层之间，所述电致紫外光发光材料层设置于所述空穴传输层和所述电子传输层之间，所述电子注入层设置于所述电子传输层和所述阴极层之间。
在上述发光器件中，所述光致发光层包括：光致蓝光发光材料，所述光致蓝光发光材料用于在所述紫外光的照射下发出蓝光；光致绿光发光材料，所述光致绿光发光材料用于在所述紫外光的照射下发出绿光；以及光致红光发光材料，所述光致红光发光材料用于在所述紫外光的照射下发出红光。
在上述发光器件中，所述光致发光层包括：第一层别，所述光致绿光发光材料、所述光致红光发光材料和所述光致蓝光发光材料均位于所述第一层别中。
在上述发光器件中，所述光致蓝光发光材料、所述光致绿光发光材料和所述光致红光发光材料均以区块或颗粒的形式设置于所述第一层别中。
在上述发光器件中，所述光致蓝光发光材料、所述光致绿光发光材料和所述光致红光发光材料的组合以一维阵列的形式排列。
在上述发光器件中，所述光致蓝光发光材料、所述光致绿光发光材料和所述光致红光发光材料的组合以二维阵列的形式排列。
在上述发光器件中，所述光致蓝光发光材料、所述光致绿光发光材料和所述光致红光发光材料随机混合于所述第一层别中。
在上述发光器件中，所述光致发光层包括：第二层别，所述光致绿光发光材料位于所述第二层别中；以及第三层别，所述光致红光发光材料位于所述第三层别中；第四层别，所述光致蓝光发光材料设置于所述第四层别中。
在上述发光器件中，在所述光致发光层所在的平面上，所述光致绿光发光材料的投影面积的总和为第一面积，所述光致红光发光材料的投影面积的总和为第二面积，所述光致蓝光发光材料的投影面积的总和为第三面积；（所述第一面积、所述第二面积、所述第三面积中的任意一者）=（所述第一面积、所述第二面积、所述第三面积中的另一者）*预定比率，所述预定比率处于90%至110%的范围内。
在上述发光器件中，所述第一面积=所述第二面积=所述第三面积。
在上述发光器件中，所述光致绿光发光材料的绿光产出率与所述第一面积以及所述光致绿光发光材料所在的层别的第一厚度对应；所述光致红光发光材料的红光产出率与所述第二面积以及所述光致红光发光材料所在的层别的第二厚度对应；所述光致蓝光发光材料的蓝光产出率与所述第三面积以及所述光致蓝光发光材料所在的层别的第三厚度对应。
相对现有技术，本发明的发光器件可通过较简单的工艺制得，并且具有较高的发光稳定性和较长的使用寿命。
图1为本发明的发光器件的第一实施例的示意图；
图2为本发明的发光器件的第二实施例的示意图；
图3为图1或图2中的光致发光层的第一实施例的示意图；
图4为图3中A-A’截面的第一实施例的示意图；
图5为图3中A-A’截面的第二实施例的示意图；
图6为图1或图2中的光致发光层的第二实施例的示意图；
图7为图1或图2中的光致发光层的第三实施例的示意图。
本说明书所使用的词语“实施例”意指实例、示例或例证。此外，本说明书和所附权利要求中所使用的冠词“一”一般地可以被解释为“一个或多个”，除非另外指定或从上下文可以清楚确定单数形式。
本发明的发光器件可以是OLED（Organic Light Emitting
Diode，有机发光二极管器件）。所述发光器件用于生成白光。所述发光器件所生成的所述白光可以用于照明，或者用作显示面板的背光源。
参考图1，图1为本发明的发光器件的第一实施例的示意图。
本实施例的发光器件包括基板101、紫外光光源生成面板102和光致发光层103。
所述基板101包括第一表面和第二表面。
所述紫外光光源生成面板102设置于所述第一表面，所述紫外光光源生成面板102用于生成紫外光。
所述光致发光层103设置于所述第二表面，所述光致发光层103用于在所述紫外光的照射下生成所述白光。
在本实施例中，所述紫外光光源生成面板102包括阳极层1023、阴极层1021、电致紫外光发光材料层1022、电源1024。
所述阳极层1023设置于所述第一表面上。所述电致紫外光发光材料层1022设置于所述阳极层1023和所述阴极层1021之间，所述电致紫外光发光材料层1022用于在所述阳极层1023和所述阴极层1021之间具有预定电压差时生成所述紫外光。
所述电源1024用于向所述阳极层1023和所述阴极层1021施加电压，以使所述阳极层1023和所述阴极层1021之间具有所述预定电压差。
在本实施例中，所述光致发光层103包括光致蓝光发光材料1031、光致绿光发光材料1032和光致红光发光材料1033。
所述光致蓝光发光材料1031用于在所述紫外光的照射下发出（生成）蓝光。
所述光致绿光发光材料1032用于在所述紫外光的照射下发出（生成）绿光。
所述光致红光发光材料1033用于在所述紫外光的照射下发出（生成）红光。
所述光致发光层103用于使得所生成的所述红光和所述绿光以及所述蓝光混合形成所述白光。
参考图3、图4和图5，图3为图1或图2中的光致发光层103的第一实施例的示意图，图4为图3中A-A’截面的第一实施例的示意图，图5为图3中A-A’截面的第二实施例的示意图。
在本实施例中，所述光致发光层103包括第一层别401，所述光致绿光发光材料1032、所述光致红光发光材料1033和所述光致蓝光发光材料1031均位于所述第一层别401中，如图4所示。
所述光致蓝光发光材料1031、所述光致红光发光材料1033和所述光致绿光发光材料1032均以区块（如图3或图6所示）或颗粒（如图7所示）的形式设置于所述第一层别401中。
在所述光致发光层103所在的平面上，所述光致绿光发光材料1032（区块或颗粒）的投影面积的总和为第一面积，所述光致红光发光材料1033（区块或颗粒）的投影面积的总和为第二面积，所述光致蓝光发光材料1031（区块或颗粒）的投影面积的总和为第三面积。
（所述第一面积、所述第二面积、所述第三面积中的任意一者）=（所述第一面积、所述第二面积、所述第三面积中的另一者）*预定比率，所述预定比率处于90%至110%的范围内。例如，所述预定比率为90%、92%、94%、95%、97%、99%、100%、102%、104%、105%、107%、109%、110%。优选地，所述第一面积=所述第二面积=所述第三面积。
所述光致蓝光发光材料1031、所述光致绿光发光材料1032和所述光致红光发光材料1033的组合以一维阵列或二维阵列的形式排列，如图3或图6所示。
所述光致蓝光发光材料1031、所述光致绿光发光材料1032和所述光致红光发光材料1033随机混合于所述第一层别401中。
或者，所述光致发光层103包括第二层别501、第三层别502和第四层别503。所述光致绿光发光材料1032位于所述第二层别501中。所述光致红光发光材料1033位于所述第三层别502中。所述光致蓝光发光材料1031设置于所述第四层别503中。
所述光致绿光发光材料1032的绿光产出率与所述第一面积以及所述光致绿光发光材料1032所在的层别（所述第一层别401或所述第二层别501）的第一厚度对应。所述光致红光发光材料1033的红光产出率与所述第二面积以及所述光致红光发光材料1033所在的层别（所述第一层别401或所述第三层别502）的第二厚度对应。所述光致蓝光发光材料1031的蓝光产出率与所述第三面积以及所述光致蓝光发光材料1031所在的层别（所述第一层别401或所述第四层别503）的第三厚度对应。
因此，通过预先设置所述光致发光层103中的所述光致绿光发光材料1032的第一面积的大小和所述第一厚度的大小，以及所述光致红光发光材料1033的第二面积的大小和所述第二厚度的大小，以及所述光致蓝光发光材料1031的第三面积的大小和所述第三厚度的大小，可以实现对所生成的所述白光的色纯度的调控。
通过上述技术方案，实现了白光光源的生成，避免了传统的WOLED因材料掺杂、具有多层复杂结构等因素对所述发光器件的发光过程造成的影响，有利于简化所述发光器件的制造工艺，同时有利于增加所述发光器件的稳定性和使用寿命。
参考图2，图2为本发明的发光器件的第二实施例的示意图。本实施例与上述第一实施例相似，不同之处在于：
在本实施例中，所述紫外光光源生成面板102还包括空穴注入层201、空穴传输层202、电子传输层203和电子注入层204。
其中，所述空穴注入层201设置于所述阳极层1023和所述空穴传输层202之间，所述空穴传输层202设置于所述空穴注入层201和所述电致紫外光发光材料层1022之间，所述电致紫外光发光材料层1022设置于所述空穴传输层202和所述电子传输层203之间，所述电子传输层203设置于所述电致紫外光发光材料层1022和所述电子注入层204之间，所述电子注入层204设置于所述电子传输层203和所述阴极层1021之间。
尽管已经相对于一个或多个实现方式示出并描述了本发明，但是本领域技术人员基于对本说明书和附图的阅读和理解将会想到等价变型和修改。本发明包括所有这样的修改和变型，并且仅由所附权利要求的范围限制。特别地关于由上述组件执行的各种功能，用于描述这样的组件的术语旨在对应于执行所述组件的指定功能（例如其在功能上是等价的）的任意组件（除非另外指示），即使在结构上与执行本文所示的本说明书的示范性实现方式中的功能的公开结构不等同。此外，尽管本说明书的特定特征已经相对于若干实现方式中的仅一个被公开，但是这种特征可以与如可以对给定或特定应用而言是期望和有利的其他实现方式的一个或多个其他特征组合。而且，就术语“包括”、“具有”、“含有”或其变形被用在具体实施方式或权利要求中而言，这样的术语旨在以与术语“包含”相似的方式包括。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。
Claims (20)
- 一种发光器件，其中，所述发光器件包括：基板，所述基板包括第一表面和第二表面；紫外光光源生成面板，所述紫外光光源生成面板设置于所述第一表面，所述紫外光光源生成面板用于生成紫外光；光致发光层，所述光致发光层设置于所述第二表面，所述光致发光层用于在所述紫外光的照射下生成白光；所述紫外光光源生成面板包括：阳极层；阴极层；电致紫外光发光材料层，所述电致紫外光发光材料层设置于所述阳极层和所述阴极层之间，所述电致紫外光发光材料层用于在所述阳极层和所述阴极层之间具有预定电压差时生成所述紫外光；以及电源，用于向所述阳极层和所述阴极层施加电压，以使所述阳极层和所述阴极层之间具有所述预定电压差；所述紫外光光源生成面板还包括：空穴注入层；空穴传输层；电子传输层；以及电子注入层；其中，所述空穴注入层设置于所述阳极层和所述空穴传输层之间，所述电致紫外光发光材料层设置于所述空穴传输层和所述电子传输层之间，所述电子注入层设置于所述电子传输层和所述阴极层之间；所述光致发光层包括：光致蓝光发光材料，所述光致蓝光发光材料用于在所述紫外光的照射下发出蓝光；光致绿光发光材料，所述光致绿光发光材料用于在所述紫外光的照射下发出绿光；以及光致红光发光材料，所述光致红光发光材料用于在所述紫外光的照射下发出红光。
- 根据权利要求1所述的发光器件，其中，所述光致发光层包括：第一层别，所述光致绿光发光材料、所述光致红光发光材料和所述光致蓝光发光材料均位于所述第一层别中。
- 根据权利要求2所述的发光器件，其中，所述光致蓝光发光材料、所述光致绿光发光材料和所述光致红光发光材料均以区块或颗粒的形式设置于所述第一层别中。
- 根据权利要求3所述的发光器件，其中，所述光致蓝光发光材料、所述光致绿光发光材料和所述光致红光发光材料的组合以一维阵列的形式排列。
- 根据权利要求3所述的发光器件，其中，所述光致蓝光发光材料、所述光致绿光发光材料和所述光致红光发光材料的组合以二维阵列的形式排列。
- 根据权利要求3所述的发光器件，其中，所述光致蓝光发光材料、所述光致绿光发光材料和所述光致红光发光材料随机混合于所述第一层别中。
- 根据权利要求2所述的发光器件，其中，所述光致发光层包括：第二层别，所述光致绿光发光材料位于所述第二层别中；以及第三层别，所述光致红光发光材料位于所述第三层别中；第四层别，所述光致蓝光发光材料设置于所述第四层别中。
- 一种发光器件，其中，所述发光器件包括：基板，所述基板包括第一表面和第二表面；紫外光光源生成面板，所述紫外光光源生成面板设置于所述第一表面，所述紫外光光源生成面板用于生成紫外光；光致发光层，所述光致发光层设置于所述第二表面，所述光致发光层用于在所述紫外光的照射下生成白光。
- 根据权利要求8所述的发光器件，其中，所述紫外光光源生成面板包括：阳极层；阴极层；电致紫外光发光材料层，所述电致紫外光发光材料层设置于所述阳极层和所述阴极层之间，所述电致紫外光发光材料层用于在所述阳极层和所述阴极层之间具有预定电压差时生成所述紫外光；以及电源，用于向所述阳极层和所述阴极层施加电压，以使所述阳极层和所述阴极层之间具有所述预定电压差。
- 根据权利要求9所述的发光器件，其中，所述紫外光光源生成面板还包括：空穴注入层；空穴传输层；电子传输层；以及电子注入层；其中，所述空穴注入层设置于所述阳极层和所述空穴传输层之间，所述电致紫外光发光材料层设置于所述空穴传输层和所述电子传输层之间，所述电子注入层设置于所述电子传输层和所述阴极层之间。
- 根据权利要求8所述的发光器件，其中，所述光致发光层包括：光致蓝光发光材料，所述光致蓝光发光材料用于在所述紫外光的照射下发出蓝光；光致绿光发光材料，所述光致绿光发光材料用于在所述紫外光的照射下发出绿光；以及光致红光发光材料，所述光致红光发光材料用于在所述紫外光的照射下发出红光。
- 根据权利要求11所述的发光器件，其中，所述光致发光层包括：第一层别，所述光致绿光发光材料、所述光致红光发光材料和所述光致蓝光发光材料均位于所述第一层别中。
- 根据权利要求12所述的发光器件，其中，所述光致蓝光发光材料、所述光致绿光发光材料和所述光致红光发光材料均以区块或颗粒的形式设置于所述第一层别中。
- 根据权利要求13所述的发光器件，其中，所述光致蓝光发光材料、所述光致绿光发光材料和所述光致红光发光材料的组合以一维阵列的形式排列。
- 根据权利要求13所述的发光器件，其中，所述光致蓝光发光材料、所述光致绿光发光材料和所述光致红光发光材料的组合以二维阵列的形式排列。
- 根据权利要求13所述的发光器件，其中，所述光致蓝光发光材料、所述光致绿光发光材料和所述光致红光发光材料随机混合于所述第一层别中。
- 根据权利要求12所述的发光器件，其中，所述光致发光层包括：第二层别，所述光致绿光发光材料位于所述第二层别中；以及第三层别，所述光致红光发光材料位于所述第三层别中；第四层别，所述光致蓝光发光材料设置于所述第四层别中。
- 根据权利要求11所述的发光器件，其中，在所述光致发光层所在的平面上，所述光致绿光发光材料的投影面积的总和为第一面积，所述光致红光发光材料的投影面积的总和为第二面积，所述光致蓝光发光材料的投影面积的总和为第三面积；（所述第一面积、所述第二面积、所述第三面积中的任意一者）=（所述第一面积、所述第二面积、所述第三面积中的另一者）*预定比率，所述预定比率处于90%至110%的范围内。
- 根据权利要求18所述的发光器件，其中，所述第一面积=所述第二面积=所述第三面积。
- 根据权利要求18所述的发光器件，其中，所述光致绿光发光材料的绿光产出率与所述第一面积以及所述光致绿光发光材料所在的层别的第一厚度对应；所述光致红光发光材料的红光产出率与所述第二面积以及所述光致红光发光材料所在的层别的第二厚度对应；所述光致蓝光发光材料的蓝光产出率与所述第三面积以及所述光致蓝光发光材料所在的层别的第三厚度对应。
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| CN1233145A (zh) * | 1998-04-20 | 1999-10-27 | 中国科学院长春物理研究所 | 彩色平板显示器件 |
| CN1612658A (zh) * | 2003-10-29 | 2005-05-04 | 铼宝科技股份有限公司 | 可调色有机发光显示面板 |
| CN101810053A (zh) * | 2007-09-28 | 2010-08-18 | 大日本印刷株式会社 | 白色发光元件 |
| CN103733243A (zh) * | 2011-08-05 | 2014-04-16 | 夏普株式会社 | 荧光体基板、显示装置和电子设备 |
| JP2015035373A (ja) * | 2013-08-09 | 2015-02-19 | 山田医療照明株式会社 | 照明ユニット及び医療用照明装置 |
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| ATE483257T1 (de) * | 2004-10-12 | 2010-10-15 | Koninkl Philips Electronics Nv | Elektroluminsezente lichtquelle |
| TWI253768B (en) * | 2004-10-22 | 2006-04-21 | Advanced Optoelectronic Tech | White LED device and manufacturing method thereof |
| US7321193B2 (en) * | 2005-10-31 | 2008-01-22 | Osram Opto Semiconductors Gmbh | Device structure for OLED light device having multi element light extraction and luminescence conversion layer |
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| CN1233145A (zh) * | 1998-04-20 | 1999-10-27 | 中国科学院长春物理研究所 | 彩色平板显示器件 |
| CN1612658A (zh) * | 2003-10-29 | 2005-05-04 | 铼宝科技股份有限公司 | 可调色有机发光显示面板 |
| CN101810053A (zh) * | 2007-09-28 | 2010-08-18 | 大日本印刷株式会社 | 白色发光元件 |
| CN103733243A (zh) * | 2011-08-05 | 2014-04-16 | 夏普株式会社 | 荧光体基板、显示装置和电子设备 |
| JP2015035373A (ja) * | 2013-08-09 | 2015-02-19 | 山田医療照明株式会社 | 照明ユニット及び医療用照明装置 |
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