WO2019148594A1 - Oled显示器及其制作方法 - Google Patents

Oled显示器及其制作方法 Download PDF

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Publication number
WO2019148594A1
WO2019148594A1 PCT/CN2018/078682 CN2018078682W WO2019148594A1 WO 2019148594 A1 WO2019148594 A1 WO 2019148594A1 CN 2018078682 W CN2018078682 W CN 2018078682W WO 2019148594 A1 WO2019148594 A1 WO 2019148594A1
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Prior art keywords
pass filter
band pass
filter film
light
blue
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PCT/CN2018/078682
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English (en)
French (fr)
Inventor
刘圣
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武汉华星光电半导体显示技术有限公司
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Priority to US15/767,615 priority Critical patent/US10490777B2/en
Publication of WO2019148594A1 publication Critical patent/WO2019148594A1/zh

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/873—Encapsulations

Definitions

  • the invention belongs to the technical field of organic display, and in particular to an OLED display and a manufacturing method thereof.
  • OLED Organic Light-Emitting Diode
  • the OLED display when the OLED display is operated outdoors for a long time, the power consumption will increase significantly, the contrast will be seriously degraded, and the service life will be shortened. This is mainly because the OLED display will absorb external natural light. In addition, most of the high-energy light in the natural light externally stimulates the organic light-emitting material in the OLED display to emit light, thereby causing the organic light-emitting material to decay prematurely, thereby shortening the service life of the OLED display.
  • an object of the present invention to provide an OLED display capable of extending the life of the device and a method of fabricating the same.
  • an OLED display includes: a substrate; an OLED device on the substrate, the OLED device including a red light emitting material layer, a green light emitting material layer, and a blue light emitting material layer; An encapsulation layer on the OLED device; a cover plate over the encapsulation layer; a band pass filter device disposed between the OLED device and the cap plate, the band pass filter device including red a light band pass filter film, a green band pass filter film, and a blue band pass filter film, the red band pass filter film being opposite to the red light emitting material layer, the green band pass filter film The blue band pass filter film is opposite to the blue light emitting material layer as opposed to the green light emitting material layer.
  • the band pass filter device is disposed between the OLED device and the encapsulation layer.
  • the band pass filter device is disposed between the encapsulation layer and the cover plate.
  • the encapsulation layer is formed by alternately laminating a plurality of inorganic layers and a plurality of organic layers, the band pass filter device being disposed between adjacent inorganic layers and an organic layer; or the red band pass filter One of a light film, the green band pass filter film, and the blue band pass filter film is disposed between adjacent inorganic layers and an organic layer, the red band pass filter film, the green The other two of the optical band pass filter film and the blue band pass filter film are disposed between the other adjacent inorganic layer and the organic layer; or the red band pass filter film, the green band The pass filter film and the blue band pass filter film are respectively disposed between different adjacent inorganic layers and organic layers.
  • the encapsulation layer is formed by alternately laminating a plurality of inorganic layers and a plurality of organic layers; when the red light band pass filter film, the green band pass filter film, and the blue band pass filter When the film is formed of an organic material, the red light band pass filter film, the green band pass filter film, and the blue band pass filter film are included in the same organic layer, or the red band pass filter One of the light film, the green band pass filter film, and the blue band pass filter film is contained in an organic layer, the red band pass filter film, the green band pass filter film And the other two of the blue band pass filter films are included in another organic layer, or the red band pass filter film, the green band pass filter film, and the blue band pass filter The films are respectively contained in different organic layers; when the red light band pass filter film, the green band pass filter film, and the blue band pass filter film are formed of an inorganic material, the red band a pass filter film, the green band pass filter film, and the blue band pass filter film are contained in the same inorganic layer
  • the OLED display further includes a circular polarizer positioned between the OLED device and the band pass filter device.
  • the band pass filter device further includes a light transmissive sheet, and the red light band pass filter film, the green band pass filter film, and the blue band pass filter film are formed on the light transmission a.
  • a method of fabricating an OLED display comprising: forming an OLED device on a substrate, the OLED device comprising a red light emitting material layer, a green light emitting material layer, and a blue light emitting material layer Forming an encapsulation layer on the OLED device; forming a band pass filter device on the cover plate, the band pass filter device comprising a red band pass filter film, a green band pass filter film, and a blue band pass filter a light film; a surface of the cover plate on which the band pass filter device is formed is disposed on the encapsulation layer, and the red band pass filter film is opposite to the red light emitting material layer The green light band pass filter film is opposite to the green light emitting material layer, and the blue band pass filter film is opposite to the blue light emitting material layer.
  • a method of fabricating an OLED display comprising: forming an OLED device on a substrate, the OLED device comprising a red light emitting material layer, a green light emitting material layer, and a blue light emitting material layer Forming an encapsulation layer on the OLED device; forming a red band pass filter film, a green band pass filter film, and a blue band pass filter film on the light transmissive sheet to form a band pass filter device; A band pass filter device is disposed on the encapsulation layer, and the red band pass filter film is opposite to the red light emitting material layer, the green band pass filter film and the green light emitting material The layer is opposite to the blue light band pass filter film opposite to the blue light emitting material layer; the cover plate is covered on the band pass filter device.
  • the invention has the beneficial effects that the invention can reduce the damage of the natural light on the luminescent material layer to prolong the service life of the device, and can also improve the color saturation and contrast of the device.
  • FIG. 1 is a schematic structural view of an OLED display according to an embodiment of the present invention.
  • FIG. 2 is a flow chart of a method of fabricating an OLED display in accordance with an embodiment of the present invention
  • FIG. 3 is a schematic structural view of an OLED display according to another embodiment of the present invention.
  • FIG. 4 is a flow chart of a method of fabricating an OLED display in accordance with another embodiment of the present invention.
  • FIG. 5 through 13 are schematic views of a band pass filter device disposed in an encapsulation layer in accordance with other embodiments of the present invention.
  • FIG. 1 is a schematic structural view of an OLED display according to an embodiment of the present invention.
  • an OLED display includes a substrate 100, an OLED device 200, an encapsulation layer 300, an anti-reflection sheet 400, a band pass filter device 500, and a cap plate 600.
  • the substrate 100 may be, for example, a glass substrate, but the invention is not limited thereto.
  • the OLED device 200 is disposed on the substrate 100.
  • the OLED device 200 includes a red light emitting material layer 210, a green light emitting material layer 220, and a blue light emitting material layer 230.
  • a red light emitting material layer 210, a green light emitting material layer 220, and a blue light emitting material layer 230 are exemplarily shown, but the present invention does not limit the number of the three.
  • a red light emitting material layer 210, a green light emitting material layer 220, and a blue light emitting material layer 230 may constitute a pixel unit.
  • the OLED device 200 of the present invention may include a plurality of pixel units (not shown), and the plurality of pixel units may be arranged according to a certain rule, for example, arranged in an array arrangement.
  • Each of the pixel units may include a red light emitting material layer 210, a green light emitting material layer 220, and a blue light emitting material layer 230.
  • the present invention is not limited thereto, for example, the OLED device 200
  • Other functional layers such as an anode, a cathode, an electron transport layer, a hole transport layer, an electron injection layer, a hole injection layer, and the like may be included.
  • the encapsulation layer 300 is disposed on the OLED device 200.
  • the encapsulation layer 300 can isolate moisture and oxygen from water vapor and oxygen to the OLED device 200, especially to the luminescent material layers of the OLED device 200, thereby protecting the OLED device 200.
  • the anti-reflection sheet 400 is disposed on the encapsulation layer 300.
  • the anti-reflection sheet 400 is used to reduce or eliminate the interference of external light on the display surface, eliminate the reflection and avoid the phenomenon that the dark picture is not dark, thereby improving the contrast.
  • the anti-reflection sheet 400 may be, for example, a circular polarizer, wherein the circular polarizer may be composed of a laminated linear polarizer and a quarter-wave plate, but the invention is not limited thereto.
  • the anti-reflection sheet 400 since the anti-reflection sheet 400 is to optimize the display quality of the display screen, the anti-reflection sheet 400 may not exist as another embodiment of the present invention.
  • the band pass filter device 500 is disposed on the anti-reflection sheet 400.
  • the band pass filter device 500 includes a red band pass filter film 510, a green band pass filter film 520, and a blue band pass filter film 530; wherein the red band pass filter film 510 and The red light emitting material layer 210 is opposite to the green light emitting color filter layer 520 opposite to the green light emitting material layer 220, and the blue light band pass filter film 530 is opposite to the blue light emitting material layer 230.
  • the band pass filter device 500 is disposed on the anti-reflection sheet 400 as an embodiment of the present invention.
  • the band pass filter device 500 is disposed as long as it is above the OLED device 200.
  • the band pass filter device 500 may be directly on the OLED device 200;
  • the pass filter device 500 can be directly on the encapsulation layer 300.
  • the encapsulation layer 300 may be formed by alternately laminating a plurality of inorganic layers and a plurality of organic layers.
  • the band pass filter device 500 can be disposed directly on the encapsulation layer 300, or the band pass filter device 500 can be disposed in the encapsulation layer 300.
  • how the band pass filter device 500 is disposed in the encapsulation layer 300 will be described in detail by taking two inorganic layers and two organic layers as an example.
  • 5 is a schematic diagram of a band pass filter device disposed in an encapsulation layer in accordance with yet another embodiment of the present invention.
  • the encapsulation layer 300 includes a first inorganic layer 310, a first organic layer 320, a second inorganic layer 330, and a second organic layer 340 which are sequentially laminated.
  • the red light band pass filter film 510, the green band pass filter film 520, and the blue band pass filter film 530 are disposed between the first inorganic layer 310 and the first organic layer 320.
  • the red band pass filter film 510, the green band pass filter film 520, and the blue band pass filter film 530 may be disposed between the first organic layer 320 and the second inorganic layer 330 or Between the second inorganic layer 330 and the second organic layer 340.
  • FIG. 6 is a schematic diagram of a band pass filter device disposed in an encapsulation layer in accordance with yet another embodiment of the present invention.
  • the encapsulation layer 300 includes a first inorganic layer 310, a first organic layer 320, a second inorganic layer 330, and a second organic layer 340 which are sequentially laminated.
  • the red light band pass filter film 510 is disposed between the first inorganic layer 310 and the first organic layer 320, and the green band pass filter film 520 and the blue band pass filter film 530 are disposed on the first organic layer 320 and Between the second inorganic layers 330.
  • the green band pass filter film 520 and the blue band pass filter film 530 may also be disposed between the second inorganic layer 330 and the second organic layer 340.
  • one of the red band pass filter film 510, the green band pass filter film 520, and the blue band pass filter film 530 is disposed between any adjacent inorganic layer and the organic layer, and the red band
  • the other two of the pass filter film 510, the green band pass filter film 520, and the blue band pass filter film 530 are disposed between the other adjacent inorganic layer and the organic layer.
  • FIG. 7 is a schematic diagram of a band pass filter device disposed in an encapsulation layer in accordance with yet another embodiment of the present invention.
  • the encapsulation layer 300 includes a first inorganic layer 310, a first organic layer 320, a second inorganic layer 330, and a second organic layer 340 which are sequentially laminated.
  • the red band pass filter film 510 is disposed between the first inorganic layer 310 and the first organic layer 320
  • the green band pass filter film 520 is disposed between the first organic layer 320 and the second inorganic layer 330.
  • the blue band pass filter film 530 is disposed between the second inorganic layer 330 and the second organic layer 340.
  • the positions of the red band pass filter film 510, the green band pass filter film 520, and the blue band pass filter film 530 may be interchanged. That is, the red band pass filter film 510, the green band pass filter film 520, and the blue band pass filter film 530 are respectively disposed between different adjacent inorganic layers and organic layers.
  • FIG. 8 is a schematic diagram of a band pass filter device disposed in an encapsulation layer in accordance with yet another embodiment of the present invention.
  • the encapsulation layer 300 includes a first inorganic layer 310, a first organic layer 320, a second inorganic layer 330, a second organic layer 340, a third inorganic layer 350, and a third organic layer 360 which are sequentially laminated.
  • the red band pass filter film 510, the green band pass filter film 520, and the blue band pass filter film 530 are formed of an organic material
  • the band pass filter film 530 is included in the first organic layer 320.
  • the red band pass filter film 510, the green band pass filter film 520, and the blue band pass filter film 530 may also be included in the second organic layer 340 or the third organic layer 360.
  • the red band pass filter film 510 is included in the first organic layer 320, and the green band pass filter film 520 and the blue band pass filter film 530 are included in the second organic layer. 340 or the third organic layer 360.
  • a red band pass filter film 510, a green band pass filter film 520, and a blue band pass filter film 530 are respectively included in the first organic layer 320 and the second organic layer 340.
  • the third organic layer 360 is also included in the red band pass filter film 510, a green band pass filter film 520, and a blue band pass filter film 530.
  • FIG. 11 is a schematic diagram of a band pass filter device disposed in an encapsulation layer in accordance with still another embodiment of the present invention.
  • the encapsulation layer 300 includes a first inorganic layer 310, a first organic layer 320, a second inorganic layer 330, a second organic layer 340, a third inorganic layer 350, and a third organic layer 360 which are sequentially laminated.
  • the red band pass filter film 510, the green band pass filter film 520, and the blue band pass filter film 530 are formed of an inorganic material
  • the band pass filter film 530 is included in the first inorganic layer 310.
  • the red band pass filter film 510, the green band pass filter film 520, and the blue band pass filter film 530 may be included in the second inorganic layer 330 or the third inorganic layer 350.
  • a red band pass filter film 510 is included in the first inorganic layer 310, and a green band pass filter film 520 and a blue band pass filter film 530 are included in the second inorganic layer. 330 or the third inorganic layer 350.
  • the red band pass filter film 510, the green band pass filter film 520, and the blue band pass filter film 530 are respectively included in the first inorganic layer 310 and the second inorganic layer 330. And in the third inorganic layer 350.
  • the cover plate 600 is disposed on the band pass filter device 500.
  • the cover 600 may be, for example, a glass cover, but the invention is not limited thereto.
  • the red band pass filter film 510, the green band pass filter film 520 and the blue band pass filter film 530 have the effect of selective light transmission. For example, after the natural light is irradiated to the red band pass filter film 510, only red light can be used. Through the red band pass filter film 510, similarly, after the external natural light is respectively irradiated to the green band pass filter film 520 and the blue band pass filter film 530, only green light and blue light can pass through the green band pass filter respectively. The light film 520 and the blue light band pass filter film 530. Thus, since each of the band pass filter films absorbs most of the external natural light, the life of the respective opposite luminescent material layers can be made longer.
  • the respective band pass filter films can absorb the edge light of the light emitted by each luminescent material layer, thereby the color of each luminescent material layer.
  • the domain acts as a forced compression, making the color gamut more pure, thereby increasing the color saturation of the OLED device.
  • the red band pass filter film 510, the green band pass filter film 520 and the blue band pass filter film 530 are formed, the red band pass filter film 510 and/or the green band pass filter film 520 are formed.
  • the thickness of the blue band pass filter film 530 is made in the range of 50 nm to 150 nm, but the present invention is not limited thereto.
  • Rx is preferably 20 nm, but the present invention is not limited thereto, and it can be adjusted according to actual needs. For example, if R0 is 650 nm, then R1 is 630 nm and R2 is 670 nm.
  • Gx is preferably 15 nm, but the present invention is not limited thereto, and it can be adjusted according to actual needs. For example, if G0 is 532 nm, G1 is 517 nm and G2 is 547 nm.
  • Bx is preferably 10 nm, but the present invention is not limited thereto, and it can be adjusted according to actual needs. For example, B0 is 430 nm, then B1 is 420 nm and B2 is 440 nm.
  • FIG. 2 is a flow chart of a method of fabricating an OLED display in accordance with an embodiment of the present invention.
  • a method of fabricating an OLED display according to an embodiment of the present invention includes:
  • the OLED device 200 is formed on the substrate 100.
  • the OLED device 200 includes a red light emitting material layer 210, a green light emitting material layer 220, and a blue light emitting material layer 230.
  • step S220 an encapsulation layer 300 is formed on the OLED device 200.
  • step S230 an anti-reflection sheet 400 is formed on the encapsulation layer 300. As described above, when the anti-reflection sheet 400 is not present, the step S230 can be omitted.
  • a band pass filter device 500 is formed on the cover plate 600.
  • the band pass filter device 500 includes a red band pass filter film 510, a green band pass filter film 520, and a blue band pass filter film 530.
  • Step S250 the surface of the cover plate 600 on which the band pass filter device 500 is formed is attached to the anti-reflection sheet 400, and the red band pass filter film 510 is opposite to the red light-emitting material layer 210.
  • the filter film 520 is opposite to the green light emitting material layer 220, and the blue band pass filter film 530 is opposite to the blue light emitting material layer 230.
  • the step S230 is omitted, the surface of the cap plate 600 on which the band pass filter device 500 is formed is attached to the encapsulation layer 300.
  • FIG. 3 is a schematic structural view of an OLED display according to another embodiment of the present invention.
  • the band pass filter device 500 shown in FIG. 3 further includes a light-transmitting sheet 540 disposed on the anti-reflection sheet 400.
  • the red light band pass filter film 210, the green band pass filter film 220, and the blue band pass filter film 230 are disposed on the light transmissive sheet 540.
  • the light-transmitting sheet 540 may be, for example, a thin glass sheet, but the invention is not limited thereto.
  • the light transmissive sheet 540 is disposed on the anti-reflection sheet 400; or, when the band pass filter device 500 is directly on the encapsulation layer 300
  • the light-transmissive sheet 540 is disposed on the encapsulation layer 300; or, when the band-pass filter device 500 is disposed in the encapsulation layer 300, the transparent sheet 540 functions as a red band pass filter film 210 and a green band.
  • the carrier sheets of the pass filter film 220 and the blue band pass filter film 230 may also be disposed in the encapsulation layer 300.
  • FIG. 4 is a flow chart of a method of fabricating an OLED display in accordance with another embodiment of the present invention.
  • a method for fabricating an OLED display according to another embodiment of the present invention includes:
  • the OLED device 200 is formed on the substrate 100.
  • the OLED device 200 includes a red light emitting material layer 210, a green light emitting material layer 220, and a blue light emitting material layer 230.
  • step S420 an encapsulation layer 300 is formed on the OLED device 200.
  • step S430 an anti-reflection sheet 400 is formed on the encapsulation layer 300. As described above, when the anti-reflection sheet 400 is not present, this step S430 can be omitted.
  • step S440 a red light band pass filter film 510, a green band pass filter film 520 and a blue band pass filter film 530 are formed on the light transmissive sheet 540 to form a band pass filter device 500.
  • step S550 the light-transmissive sheet 540 (which may be the surface forming the band pass filter film or the opposite surface of the surface forming the band pass filter film) is attached to the anti-reflection sheet 400, and the red light band pass filter is performed.
  • the film 510 is opposite to the red light emitting material layer 210
  • the green light band pass filter film 520 is opposite to the green light emitting material layer 220
  • the blue band pass filter film 530 is opposite to the blue light emitting material layer 230.
  • the step S430 is omitted, the light-transmissive sheet 540 is attached to the encapsulation layer 300.
  • step S560 the cover plate 600 is covered on the light-transmissive sheet 540.
  • the color saturation and contrast of the device can be improved while reducing the damage of the external light to the luminescent material layer to prolong the service life of the device.

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Abstract

本发明公开了一种OLED显示器，其包括：基板；OLED器件，位于所述基板上，所述OLED器件包括红光发光材料层、绿光发光材料层和蓝光发光材料层；封装层，位于所述OLED器件上；盖板，位于所述封装层之上；带通滤光器件，设置于所述OLED器件和所述盖板之间，所述带通滤光器件包括红光带通滤光膜、绿光带通滤光膜和蓝光带通滤光膜，所述红光带通滤光膜与所述红光发光材料层相对，所述绿光带通滤光膜与所述绿光发光材料层相对，所述蓝光带通滤光膜与所述蓝光发光材料层相对。本发明还公开了一种OLED显示器的制作方法。本发明能够减轻外界自然光对发光材料层的损伤以延长器件使用寿命的同时，还能提高器件的色彩饱和度和对比度。

Description

OLED显示器及其制作方法 技术领域
本发明属于有机显示技术领域，具体地讲，涉及一种OLED显示器及其制作方法。
背景技术
近年来，有机发光二极管(Organic Light-Emitting Diode，OLED)显示器成为国内外非常热门的新兴平面显示器产品，这是因为OLED显示器具有自发光、广视角、短反应时间、高发光效率、广色域、薄厚度、可制作大尺寸与可挠曲的显示器及制程简单等特性，而且它还具有低成本的潜力。
然而，OLED显示器长时间工作于光照度较强的室外时，不仅其功耗会显著增加，对比度严重下降，同时其使用寿命也会缩短，这主要是由于OLED显示器会吸收外界自然光所导致的。此外，绝大部分外界自然光中的高能量光线会激发OLED显示器中的有机发光材料进行发光，从而导致有机发光材料过早衰退，进而缩短OLED显示器的使用寿命。
发明内容
为了解决上述现有技术存在的问题，本发明的目的在于提供一种能够延长器件使用寿命的OLED显示器及其制作方法。
根据本发明的一方面，提供了一种OLED显示器，其包括：基板；OLED器件，位于所述基板上，所述OLED器件包括红光发光材料层、绿光发光材料层和蓝光发光材料层；封装层，位于所述OLED器件上；盖板，位于所述封装层之上；带通滤光器件，设置于所述OLED器件和所述盖板之间，所述带通滤光器件包括红光带通滤光膜、绿光带通滤光膜和蓝光带通滤光膜，所述红光带通滤光膜与所述红光发光材料层相对，所述绿光带通滤光膜与所述绿光发光材料层相对，所述蓝光带通滤光膜与所述蓝光发光材料层相对。
进一步地，所述带通滤光器件设置于所述OLED器件和所述封装层之间。
进一步地，所述带通滤光器件设置于所述封装层和所述盖板之间。
进一步地，所述封装层由多层无机层和多层有机层交替叠层形成，所述带通滤光器件设置于相邻的无机层和有机层之间；或者所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜中的一个设置于相邻的无机层和有机层之间，所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜中的另外两个设置于另外相邻的无机层和有机层之间；或者所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜分别设置于不同的相邻的无机层和有机层之间。
进一步地，所述封装层由多层无机层和多层有机层交替叠层形成；当所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜由有机材料形成时，所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜包含于同一有机层中，或者所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜中的一个包含于一有机层中，所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜中的另外两个包含于另一有机层中，或者所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜分别包含于不同的有机层中；当所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜由无机材料形成时，所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜包含于同一无机层中，或者所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜中的一个包含于一无机层中，所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜中的另外两个包含于另一无机层中，或者所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜分别包含于不同的无机层中。
进一步地，所述红光带通滤光膜的透光波段为R1～R2，所述红光发光材料层的发光波峰所对应的波长为R0，其中，R1＝R0-20nm，R2＝R0+20nm；所述绿光带通滤光膜的透光波段为G1～G2，所述绿光发光材料层的发光波峰所对应的波长为G0，其中，G1＝G0-15nm，G2＝G0+15nm；所述蓝光带通滤光膜的透光波段为B1～B2，所述蓝光发光材料层的发光波峰所对应的波长为B0，其中，B1＝B0-10nm，B2＝B0+10nm。
进一步地，所述OLED显示器还包括圆偏光片，所述圆偏光片位于所述OLED器件和所述带通滤光器件之间。
进一步地，所述带通滤光器件还包括透光片，所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜形成于所述透光片上。
根据本发明的另一方面，还提供了一种OLED显示器的制作方法，其包括：在基板上形成OLED器件，所述OLED器件包括红光发光材料层、绿光发光材料层和蓝光发光材料层；在所述OLED器件上形成封装层；在盖板上形成带通滤光器件，所述带通滤光器件包括红光带通滤光膜、绿光带通滤光膜和蓝光带通滤光膜；使所述盖板的形成有所述带通滤光器件的表面设置于所述封装层上，且使所述红光带通滤光膜与所述红光发光材料层相对，所述绿光带通滤光膜与所述绿光发光材料层相对，蓝光带通滤光膜与所述蓝光发光材料层相对。
根据本发明的又一方面，又提供了一种OLED显示器的制作方法，其包括：在基板上形成OLED器件，所述OLED器件包括红光发光材料层、绿光发光材料层和蓝光发光材料层；在所述OLED器件上形成封装层；在透光片上形成红光带通滤光膜、绿光带通滤光膜和蓝光带通滤光膜，以形成带通滤光器件；使所述带通滤光器件设置于所述封装层上，且使所述红光带通滤光膜与所述红光发光材料层相对，所述绿光带通滤光膜与所述绿光发光材料层相对，蓝光带通滤光膜与所述蓝光发光材料层相对；在所述带通滤光器件上盖合盖板。
本发明的有益效果：本发明能够减轻外界自然光对发光材料层的损伤以延长器件使用寿命的同时，还能提高器件的色彩饱和度和对比度。
附图说明
通过结合附图进行的以下描述，本发明的实施例的上述和其它方面、特点和优点将变得更加清楚，附图中：
图1是根据本发明的实施例的OLED显示器的结构示意图；
图2是根据本发明的实施例的OLED显示器的制作方法的流程图；
图3是根据本发明的另一实施例的OLED显示器的结构示意图；
图4是根据本发明的另一实施例的OLED显示器的制作方法的流程图；
图5至图13是根据本发明的其他实施例的封装层中设置有带通滤光器件的示意图。
具体实施方式
以下，将参照附图来详细描述本发明的实施例。然而，可以以许多不同的形式来实施本发明，并且本发明不应该被解释为限制于这里阐述的具体实施例。相反，提供这些实施例是为了解释本发明的原理及其实际应用，从而使本领域的其他技术人员能够理解本发明的各种实施例和适合于特定预期应用的各种修改。
在附图中，为了清楚起见，夸大了层和区域的厚度。相同的标号在整个说明书和附图中表示相同的元器件。
将理解的是，当诸如层、膜、区域或基底等的元件被称作“在”另一元件“上”时，该元件可以直接在所述另一元件上，或者也可以存在中间元件。可选择地，当元件被称作“直接在”另一元件“上”时，不存在中间元件。
图1是根据本发明的实施例的OLED显示器的结构示意图。
参照图1，根据本发明的实施例的OLED显示器包括基板100、OLED器件200、封装层300、抗反射片400、带通滤光器件500和盖板600。
具体地，基板100可例如是玻璃基板，但本发明并不限制于此。
OLED器件200设置于基板100上。在本实施例中，OLED器件200包括红光发光材料层210、绿光发光材料层220和蓝光发光材料层230。在图1中，示例性示出一个红光发光材料层210、一个绿光发光材料层220和一个蓝光发光材料层230，但是本发明并不对这三者的数量进行限制。此外，一个红光发光材料层210、一个绿光发光材料层220和一个蓝光发光材料层230可以构成一像素单元。
也就是说，本发明中OLED器件200可以包括多个像素单元(未示出)，多个像素单元可以按照一定规则进行排布，例如按照阵列排布的方式进行排 布。而每个像素单元可以包括一个红光发光材料层210、一个绿光发光材料层220和一个蓝光发光材料层230。
此外，虽然在本实施例中仅示出了OLED器件200包括红光发光材料层210、绿光发光材料层220和蓝光发光材料层230，但本发明并不限制于此，例如OLED器件200还可以包括阳极、阴极、电子传输层、空穴传输层、电子注入层、空穴注入层等其他功能层。
封装层300设置于OLED器件200上。封装层300可以将水汽和氧气隔绝在外，避免水汽和氧气对OLED器件200，尤其是对OLED器件200的各发光材料层进行的水氧腐蚀，从而可以保护OLED器件200。
抗反射片400设置于封装层300上。抗反射片400用于降低或者消除外部光线对显示面画的干扰，消除反光并能够避免出现暗画面不暗的现象，从而提高对比度。作为本发明的一实施方式，抗反射片400可例如是一圆偏光片，其中该圆偏光片可以由叠层的线偏光片和1/4波片构成，但本发明并不限制于此。这里，抗反射片400是优化显示画面的显示质量，因此作为本发明的另一实施方式，抗反射片400不存在也可以。
带通滤光器件500设置于抗反射片400上。在本实施例中，带通滤光器件500包括红光带通滤光膜510、绿光带通滤光膜520和蓝光带通滤光膜530；其中，红光带通滤光膜510与红光发光材料层210相对，绿光带通滤光膜520与绿光发光材料层220相对，蓝光带通滤光膜530与蓝光发光材料层230相对。
这里，带通滤光器件500设置于抗反射片400上仅是本发明的一实施方式。在本发明中，带通滤光器件500的设置只要其在OLED器件200之上即可，例如作为本发明的其他实施方式，带通滤光器件500可以直接在OLED器件200上；或者，带通滤光器件500可以直接在封装层300上。
此外，作为本发明的一实施方式，封装层300可以由多层无机层和多层有机层交替叠层形成。而带通滤光器件500可以直接设置于封装层300上，或者带通滤光器件500可以设置于封装层300中。这里，以两层无机层和两层有机层为例对带通滤光器件500如何设置于封装层300中进行详细说明。图5是根据本发明的又一实施例的封装层中设置有带通滤光器件的示意图。
参照图5，封装层300包括顺序叠层的第一无机层310、第一有机层320、第二无机层330和第二有机层340。
红光带通滤光膜510、绿光带通滤光膜520和蓝光带通滤光膜530设置于第一无机层310和第一有机层320之间。或者，作为其他的实施方式，红光带通滤光膜510、绿光带通滤光膜520和蓝光带通滤光膜530可以设置于第一有机层320和第二无机层330之间或者第二无机层330和第二有机层340之间。
图6是根据本发明的又一实施例的封装层中设置有带通滤光器件的示意图。
参照图6，封装层300包括顺序叠层的第一无机层310、第一有机层320、第二无机层330和第二有机层340。
红光带通滤光膜510设置于第一无机层310和第一有机层320之间，而、绿光带通滤光膜520和蓝光带通滤光膜530设置于第一有机层320和第二无机层330之间。或者，作为其他的实施方式，绿光带通滤光膜520和蓝光带通滤光膜530还可以设置于第二无机层330和第二有机层340之间。也就是说，红光带通滤光膜510、绿光带通滤光膜520和蓝光带通滤光膜530中的一个设置于任意相邻的无机层和有机层之间，而红光带通滤光膜510、绿光带通滤光膜520和蓝光带通滤光膜530中另外两个设置于另外相邻的无机层和有机层之间。
图7是根据本发明的又一实施例的封装层中设置有带通滤光器件的示意图。
参照图7，封装层300包括顺序叠层的第一无机层310、第一有机层320、第二无机层330和第二有机层340。
这里，红光带通滤光膜510设置于第一无机层310和第一有机层320之间，绿光带通滤光膜520设置于第一有机层320和第二无机层330之间，蓝光带通滤光膜530设置于第二无机层330和第二有机层340之间。或者，作为其他的实施方式，红光带通滤光膜510、绿光带通滤光膜520和蓝光带通滤光膜530的位置可以互换。也就是说，红光带通滤光膜510、绿光带通滤光膜520和蓝 光带通滤光膜530分别设置于不同的相邻的无机层和有机层之间。
图8是根据本发明的又一实施例的封装层中设置有带通滤光器件的示意图。
参照图8，封装层300包括顺序叠层的第一无机层310、第一有机层320、第二无机层330、第二有机层340、第三无机层350和第三有机层360。
当红光带通滤光膜510、绿光带通滤光膜520和蓝光带通滤光膜530由有机材料形成时，红光带通滤光膜510、绿光带通滤光膜520和蓝光带通滤光膜530包含于第一有机层320中。或者，作为其他实施方式，红光带通滤光膜510、绿光带通滤光膜520和蓝光带通滤光膜530也可以包含于第二有机层340或者第三有机层360中。
或者，作为其他实施方式，参照图9，红光带通滤光膜510包含于第一有机层320中，绿光带通滤光膜520和蓝光带通滤光膜530包含于第二有机层340或者第三有机层360中。或者，作为其他实施方式，参照图10，红光带通滤光膜510、绿光带通滤光膜520和蓝光带通滤光膜530分别包含于第一有机层320、第二有机层340和第三有机层360中。
图11是根据本发明的又一实施例的封装层中设置有带通滤光器件的示意图。
参照图11，封装层300包括顺序叠层的第一无机层310、第一有机层320、第二无机层330、第二有机层340、第三无机层350和第三有机层360。
当红光带通滤光膜510、绿光带通滤光膜520和蓝光带通滤光膜530由无机材料形成时，红光带通滤光膜510、绿光带通滤光膜520和蓝光带通滤光膜530包含于第一无机层310中。或者，作为其他实施方式，红光带通滤光膜510、绿光带通滤光膜520和蓝光带通滤光膜530也可以包含于第二无机层330或者第三无机层350中。
或者，作为其他实施方式，参照图12，红光带通滤光膜510包含于第一无机层310中，绿光带通滤光膜520和蓝光带通滤光膜530包含于第二无机层330或者第三无机层350中。或者，作为其他实施方式，参照图13，红光带通滤光 膜510、绿光带通滤光膜520和蓝光带通滤光膜530分别包含于第一无机层310、第二无机层330和第三无机层350中。
继续参照图1，盖板600设置于带通滤光器件500上。在本实施例中，盖板600可例如是玻璃盖板，但本发明并不限制于此。
红色带通滤光膜510、绿光带通滤光膜520和蓝光带通滤光膜530具有选择性透光的效应，例如外界自然光照射到红色带通滤光膜510之后，只有红光可以透过红色带通滤光膜510，同样地，外界自然光分别照射到绿光带通滤光膜520和蓝光带通滤光膜530之后，只有绿光和蓝光分别可以透过绿光带通滤光膜520和蓝光带通滤光膜530。如此，由于各带通滤光膜吸收了外界自然光的绝大部分，可以使得各自相对的发光材料层的使用寿命更长。
此外，各发光材料层发出的光通过各自对应的带通滤光膜时，由于各自对应的带通滤光膜可以吸收各发光材料层发出的光的边缘光，从而对各发光材料层所在色域起到强制压缩效果，使色域更纯，从而提高OLED器件的色彩饱和度。
进一步地，在制作红色带通滤光膜510、绿光带通滤光膜520和蓝光带通滤光膜530时，将红色带通滤光膜510和/或绿光带通滤光膜520和/或蓝光带通滤光膜530的厚度制作在50nm～150nm的范围内，但本发明并不限制于此。
作为本发明的一实施方式，红光带通滤光膜510的透光波段(或高透光波段)为R1～R2，红光发光材料层210的发光波峰所对应的波长为R0，其中，R1＝R0-Rx，R2＝R0+Rx。在本实施例中，Rx优选为20nm，但本发明并不限制于此，其可以根据实际需求而调整。例如，R0为650nm，则R1为630nm，R2为670nm。
绿光带通滤光膜520的透光波段(或高透光波段)为G1～G2，绿光发光材料层220的发光波峰所对应的波长为G0，其中，G1＝G0-Gx，G2＝G0+Gx。在本实施例中，Gx优选为15nm，但本发明并不限制于此，其可以根据实际需求而调整。例如，G0为532nm，则G1为517nm，G2为547nm。
蓝光带通滤光膜530的透光波段(或高透光波段)为B1～B2，蓝光发光 材料层230的发光波峰所对应的波长为B0，其中，B1＝B0-Bx，B2＝B0+Bx。在本实施例中，Bx优选为10nm，但本发明并不限制于此，其可以根据实际需求而调整。例如，B0为430nm，则B1为420nm，B2为440nm。
图2是根据本发明的实施例的OLED显示器的制作方法的流程图。
参照图1和图2，根据本发明的实施例的OLED显示器的制作方法包括：
步骤S210，在基板100上形成OLED器件200。这里，OLED器件200包括红光发光材料层210、绿光发光材料层220和蓝光发光材料层230。
步骤S220，在OLED器件200上形成封装层300。
步骤S230，在封装层300上形成抗反射片400。如上所述，当抗反射片400不存在时，该步骤S230可以被省略。
步骤S240，在盖板600上形成带通滤光器件500。这里，带通滤光器件500包括红光带通滤光膜510、绿光带通滤光膜520和蓝光带通滤光膜530。
步骤S250，将盖板600的形成有带通滤光器件500的表面贴合于抗反射片400上，且使红光带通滤光膜510与红光发光材料层210相对，绿光带通滤光膜520与绿光发光材料层220相对，蓝光带通滤光膜530与蓝光发光材料层230相对。这里，当步骤S230被省略时，将盖板600的形成有带通滤光器件500的表面贴合于封装层300上。
图3是根据本发明的另一实施例的OLED显示器的结构示意图。
参照图3，与图1所示的OLED显示器的结构的不同之处在于：图3所示的带通滤光器件500还包括透光片540，该透光片540设置于抗反射片400上。红光带通滤光膜210、绿光带通滤光膜220和蓝光带通滤光膜230设置于透光片540上。在本实施例中，透光片540可例如是薄玻璃片，但本发明并不限制于此。
作为本发明的其他实施方式，当带通滤光器件500直接在OLED器件200上时，该透光片540设置于抗反射片400上；或者，当带通滤光器件500直接在封装层300上时，该透光片540设置于封装层300上；或者，当带通滤光器 件500设置于封装层300中时，该透光片540作为红光带通滤光膜210、绿光带通滤光膜220和蓝光带通滤光膜230的承载片也可以设置于封装层300中。
图4是根据本发明的另一实施例的OLED显示器的制作方法的流程图。
参照图3和图4，根据本发明的另一实施例的OLED显示器的制作方法包括：
步骤S410，在基板100上形成OLED器件200。这里，OLED器件200包括红光发光材料层210、绿光发光材料层220和蓝光发光材料层230。
步骤S420，在OLED器件200上形成封装层300。
步骤S430，在封装层300上形成抗反射片400。如上所述，当抗反射片400不存在时，该步骤S430可以被省略。
步骤S440，在透光片540上形成红光带通滤光膜510、绿光带通滤光膜520和蓝光带通滤光膜530，以形成带通滤光器件500。
步骤S550，将透光片540(其可以是形成带通滤光膜的表面或者形成带通滤光膜的表面的相对面)贴合于抗反射片400上，且使红光带通滤光膜510与红光发光材料层210相对，绿光带通滤光膜520与绿光发光材料层220相对，蓝光带通滤光膜530与蓝光发光材料层230相对。这里，当步骤S430被省略时，将透光片540贴合于封装层300上。
步骤S560，在透光片540上盖合盖板600。
综上所述，根据本发明的各实施例，在能够减轻外界自然光对发光材料层的损伤以延长器件使用寿命的同时，还能提高器件的色彩饱和度和对比度。
虽然已经参照特定实施例示出并描述了本发明，但是本领域的技术人员将理解：在不脱离由权利要求及其等同物限定的本发明的精神和范围的情况下，可在此进行形式和细节上的各种变化。

Claims (10)

  1. 一种OLED显示器，其中，包括：
    基板；
    OLED器件，位于所述基板上，所述OLED器件包括红光发光材料层、绿光发光材料层和蓝光发光材料层；
    封装层，位于所述OLED器件上；
    盖板，位于所述封装层之上；
    带通滤光器件，设置于所述OLED器件和所述盖板之间，所述带通滤光器件包括红光带通滤光膜、绿光带通滤光膜和蓝光带通滤光膜，所述红光带通滤光膜与所述红光发光材料层相对，所述绿光带通滤光膜与所述绿光发光材料层相对，所述蓝光带通滤光膜与所述蓝光发光材料层相对。
  2. 根据权利要求1所述的OLED显示器，其中，所述带通滤光器件设置于所述OLED器件和所述封装层之间。
  3. 根据权利要求1所述的OLED显示器，其中，所述带通滤光器件设置于所述封装层和所述盖板之间。
  4. 根据权利要求1所述的OLED显示器，其中，所述封装层由多层无机层和多层有机层交替叠层形成，所述带通滤光器件设置于相邻的无机层和有机层之间；或者所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜中的一个设置于相邻的无机层和有机层之间，所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜中的另外两个设置于另外相邻的无机层和有机层之间；或者所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜分别设置于不同的相邻的无机层和有机层之间。
  5. 根据权利要求1所述的OLED显示器，其中，所述封装层由多层无机层和多层有机层交替叠层形成；
    当所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜由有机材料形成时，所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜包含于同一有机层中，或者所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜中的一个包含于一有机层中，所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜中的另外两个包含于另一有机层中，或者所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜分别包含于不同的有机层中；
    当所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜由无机材料形成时，所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜包含于同一无机层中，或者所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜中的一个包含于一无机层中，所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜中的另外两个包含于另一无机层中，或者所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜分别包含于不同的无机层中。
  6. 根据权利要求1所述的OLED显示器，其中，所述红光带通滤光膜的透光波段为R1～R2，所述红光发光材料层的发光波峰所对应的波长为R0，其中，R1＝R0-20nm，R2＝R0+20nm；
    所述绿光带通滤光膜的透光波段为G1～G2，所述绿光发光材料层的发光波峰所对应的波长为G0，其中，G1＝G0-15nm，G2＝G0+15nm；
    所述蓝光带通滤光膜的透光波段为B1～B2，所述蓝光发光材料层的发光波峰所对应的波长为B0，其中，B1＝B0-10nm，B2＝B0+10nm。
  7. 根据权利要求1所述的OLED显示器，其中，所述OLED显示器还包括圆偏光片，所述圆偏光片位于所述OLED器件和所述带通滤光器件之间。
  8. 根据权利要求1所述的OLED显示器，其中，所述带通滤光器件还包括透光片，所述红光带通滤光膜、所述绿光带通滤光膜和所述蓝光带通滤光膜形成于所述透光片上。
  9. 一种OLED显示器的制作方法，其中，包括：
    在基板上形成OLED器件，所述OLED器件包括红光发光材料层、绿光发光材料层和蓝光发光材料层；
    在所述OLED器件上形成封装层；
    在盖板上形成带通滤光器件，所述带通滤光器件包括红光带通滤光膜、绿光带通滤光膜和蓝光带通滤光膜；
    使所述盖板的形成有所述带通滤光器件的表面设置于所述封装层上，且使所述红光带通滤光膜与所述红光发光材料层相对，所述绿光带通滤光膜与所述绿光发光材料层相对，蓝光带通滤光膜与所述蓝光发光材料层相对。
  10. 一种OLED显示器的制作方法，其中，包括：
    在基板上形成OLED器件，所述OLED器件包括红光发光材料层、绿光发光材料层和蓝光发光材料层；
    在所述OLED器件上形成封装层；
    在透光片上形成红光带通滤光膜、绿光带通滤光膜和蓝光带通滤光膜，以形成带通滤光器件；
    使所述带通滤光器件设置于所述封装层上，且使所述红光带通滤光膜与所述红光发光材料层相对，所述绿光带通滤光膜与所述绿光发光材料层相对，蓝光带通滤光膜与所述蓝光发光材料层相对；
    在所述带通滤光器件上盖合盖板。
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