WO2018227678A1 - 蓝光吸收截止膜及蓝光显示装置 - Google Patents

蓝光吸收截止膜及蓝光显示装置 Download PDF

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WO2018227678A1
WO2018227678A1 PCT/CN2017/092849 CN2017092849W WO2018227678A1 WO 2018227678 A1 WO2018227678 A1 WO 2018227678A1 CN 2017092849 W CN2017092849 W CN 2017092849W WO 2018227678 A1 WO2018227678 A1 WO 2018227678A1
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Prior art keywords
blue light
display device
blue
film
color filter
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PCT/CN2017/092849
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English (en)
French (fr)
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李冬泽
陈黎暄
陈孝贤
李泳锐
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深圳市华星光电技术有限公司
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Priority to US15/557,813 priority Critical patent/US20180356574A1/en
Publication of WO2018227678A1 publication Critical patent/WO2018227678A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light

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  • the present invention relates to the field of display technologies, and in particular, to a blue light absorption cut-off film and a blue light display device.
  • Quantum Dot refers to a semiconductor crystal grain having a particle diameter of 1-100 nm. Since the particle size of QD is small, less than or close to the exciton Bohr radius of the corresponding bulk material, a quantum confinement effect is generated, and the continuous band structure of the bulk material is transformed into a discrete energy level structure, which is excited by an external light source. The electrons will transition and emit fluorescence.
  • QD's special discrete energy level structure makes its half-wave width narrower, so it can emit high-purity monochromatic light, which has higher luminous efficiency than traditional displays.
  • the size of the QD is greatly affected, and the light of different wavelengths can be excited by adjusting the size of the QD or using QDs of different compositions.
  • the prior art mainly focuses on mixing and packaging quantum dots of red (R) light, green (G) light, and blue (B) light in an engineering plastic film to form a quantum dot film (QD film).
  • a mixed package is placed in a glass tube to form a QD tube, and the structure is placed between the backlight and the display system, and is excited by a conventional white light backlight to achieve a rich color gamut, but whether QD film is also a QD tube structure, which has a single use method for quantum dot materials, and also has a certain cost due to the need for protection and packaging of optical quality polyethylene terephthalate (PET) film and small aperture glass tube. Too high and material reliability issues.
  • PET polyethylene terephthalate
  • the QD material is prepared as a QD Color Filter (QDCF) to replace the traditional color filter concept, and the industry has made some progress.
  • QDCF QD Color Filter
  • the most common practice is to dope the QD material in the structure of the color filter, and use it with a blue backlight to realize the color display by utilizing the characteristics of photoluminescence.
  • the QDCF generally includes a plurality of arrayed red pixel units, green pixel units, and blue pixel units, wherein the red pixel unit and the green pixel unit respectively Formed by a red quantum dot ink material and a green quantum dot ink material by an inkjet process, the red pixel unit and the green pixel unit respectively emit red light and green light under excitation of a blue backlight, and the blue
  • the color pixel unit is formed by filling with a transparent organic material, and the blue light emitted by the backlight is generated by a blue backlight. Module provided. Since the blue backlight is not 100% can be used to excite QDCF, the blue backlight that is not used will also pass through the red pixel unit and the green pixel unit, resulting in the screen not being displayed properly, and the overall blue color.
  • Another object of the present invention is to provide a blue light display device comprising the above-mentioned blue light absorption cut-off film, which can effectively absorb excess blue light in the blue light display device and prevent the overall display effect from being blue.
  • the present invention provides a blue light absorption cut-off film formed of a photoresist material including a resin, a yellow pigment, a dispersant, and a photoinitiator.
  • the yellow pigment is an azo, a phenol, a benzimidazolone, or an azo condensation yellow pigment.
  • the resin is a methacrylic resin or an epoxy resin.
  • the present invention also provides a blue light display device comprising a blue light source, a photoluminescence color filter disposed above the blue light source, and blue light absorption as described above disposed above the photoluminescence color filter Cut-off film.
  • the photoluminescent color filter includes a plurality of red pixel units arranged in an array, a green pixel unit, and a blue pixel unit;
  • the blue light absorption cutoff film is provided with an opening corresponding to the blue pixel unit.
  • the photoluminescent color filter is a quantum dot color filter
  • the red pixel unit and the green pixel unit are respectively formed by a red quantum dot ink material and a green quantum dot ink material by an inkjet printing process, and the material of the blue pixel unit is a transparent organic material.
  • the photoluminescent color filter is a fluorescent dye color filter.
  • the blue light absorption cut-off film is formed by a patterning process for removing blue fluorescent light that is not converted after passing through the red pixel unit and the green pixel unit by the blue light source.
  • the manufacturing method of the blue light absorption cut-off film specifically includes the following steps:
  • Step S1 coating a photoresist layer with a yellow film layer
  • Step S2 coating a yellow photoresist layer to form a photoresist layer
  • Step S3 providing a mask, exposing the photoresist layer by using the mask, and developing the exposed photoresist layer to obtain a photoresist pattern layer;
  • Step S4 etching the yellow film layer with the photoresist pattern layer as a shielding layer to obtain a patterned blue light absorption cut-off film.
  • the blue light display device is a liquid crystal display device, a micro light emitting diode display device, or an organic light emitting diode display device.
  • the present invention also provides a blue light display device comprising a blue light source, a photoluminescence color filter disposed above the blue light source, and blue light absorption as described above disposed above the photoluminescence color filter Cut-off film
  • the photoluminescent color filter includes a plurality of arrayed red pixel units, green pixel units, and blue pixel units;
  • the blue absorption blocking film is provided with an opening corresponding to the blue pixel unit;
  • the photoluminescent color filter is a quantum dot color filter
  • the red pixel unit and the green pixel unit are respectively formed by a red quantum dot ink material and a green quantum dot ink material by an inkjet printing process, and the material of the blue pixel unit is a transparent organic material;
  • the blue light absorption cut-off film is formed by a patterning process for removing blue fluorescent light that is not converted after the blue light source and the green pixel unit are emitted;
  • the method for fabricating the blue light absorption cutoff film specifically includes the following steps:
  • Step S1 coating a photoresist layer with a yellow film layer
  • Step S2 coating a yellow photoresist layer to form a photoresist layer
  • Step S3 providing a mask, exposing the photoresist layer by using the mask, and developing the exposed photoresist layer to obtain a photoresist pattern layer;
  • Step S4 etching the yellow film layer with the photoresist pattern layer as a shielding layer to obtain a patterned blue light absorption cut-off film.
  • the blue light absorption cut-off film of the present invention is formed of a photoresist material including a resin, a yellow pigment, a dispersant, and a photoinitiator, which can effectively absorb excess light in a blue light display device Blu-ray avoids the overall display effect is blue, and the production method is simple.
  • the blue light display device of the present invention comprises the above-mentioned blue light absorption cut-off film, which can effectively absorb excess blue light in the blue light display device and prevent the overall display effect from being blue.
  • FIG. 1 is a schematic structural view of a blue light display device of the present invention
  • FIG. 2 is a schematic view showing a step S1 of a method for fabricating a blue light absorption cutoff film of the present invention
  • FIG. 3 is a schematic view showing a step S2 of a method for fabricating a blue light absorption cutoff film of the present invention
  • 4-5 is a schematic view showing a step S3 of the method for fabricating a blue light absorption cutoff film of the present invention
  • Fig. 6 is a schematic view showing the step S4 of the method for fabricating the blue light absorption cutoff film of the present invention.
  • the present invention first provides a blue light absorption cut-off film formed of a photoresist material including a resin, a yellow pigment, a dispersant, and a photoinitiator.
  • the yellow pigment is azo (such as Hansar Yellow 10G, benzidine yellow), phenol (such as permanent yellow), benzimidazolone (such as CI pigment). Yellow 154), or a yellow pigment of azo condensation (such as Gumei Defx 3G).
  • azo such as Hansar Yellow 10G, benzidine yellow
  • phenol such as permanent yellow
  • benzimidazolone such as CI pigment
  • Yellow 154 or a yellow pigment of azo condensation (such as Gumei Defx 3G).
  • the resin is a methacrylic resin or an epoxy resin, that is, the photoresist material is added by adding a methacrylic resin or an epoxy resin.
  • the blue light absorption cut-off film of the present invention is formed of a photoresist material, which comprises a resin, a yellow pigment, a dispersant, and a photoinitiator, which can be applied to all colors by blue light transitioning to other color lights.
  • a photoresist material which comprises a resin, a yellow pigment, a dispersant, and a photoinitiator, which can be applied to all colors by blue light transitioning to other color lights.
  • a photoresist material which comprises a resin, a yellow pigment, a dispersant, and a photoinitiator, which can be applied to all colors by blue light transitioning to other color lights.
  • a photoresist material which comprises a resin, a yellow pigment, a dispersant, and a photoinitiator, which can be applied to all colors by blue light transitioning to other color lights.
  • a liquid crystal display device for example, a micro light emitting diode (Micro LED) display device, and an
  • the present invention further provides a blue light display device, including a blue light source 10, a photoluminescence color filter 20 disposed above the blue light source 10, and a The blue light absorption cut-off film 30 as described above above the photoluminescence color filter 20 is described.
  • the photoluminescent color filter 20 includes a plurality of red pixel units 21 arranged in an array, a green pixel unit 22, and a blue pixel unit 23; the blue absorption cutoff film 30 corresponds to the blue pixel unit 23 An opening 31 is provided.
  • the photoluminescence color filter 20 may be a quantum dot color filter, or may be a fluorescent dye color filter formed by doping with a fluorescent dye, or other photoluminescence color filter. .
  • the blue light absorption cut-off film 30 is formed by a patterning process for removing blue fluorescent light that is not converted after the blue light source 10 passes through the red pixel unit 21 and the green pixel unit 22.
  • the manufacturing method of the blue light absorption cutoff film 30 specifically includes the following steps:
  • Step S1 as shown in FIG. 2, the photoresist material is provided, and the photoresist material is coated to form a yellow film layer 35 capable of absorbing blue light.
  • Step S2 as shown in FIG. 3, a photoresist layer 55 is formed on the yellow film layer 35.
  • Step S3 as shown in FIG. 4 and FIG. 5, a mask 70 is provided, and the photoresist layer 55 is exposed by the mask 70, and the exposed photoresist layer 55 is developed to obtain a photoresist pattern.
  • Layer 50 a mask 70 is provided, and the photoresist layer 55 is exposed by the mask 70, and the exposed photoresist layer 55 is developed to obtain a photoresist pattern.
  • Layer 50 a mask 70 is provided, and the photoresist layer 55 is exposed by the mask 70, and the exposed photoresist layer 55 is developed to obtain a photoresist pattern.
  • Step S4 as shown in FIG. 6, the photoresist layer 50 is used as a shielding layer, and the yellow film layer 35 is etched to obtain a patterned blue light-absorbing cut-off film 30, thereby completing the fabrication of the blue light-absorbing cut-off film 30. .
  • the blue light display device of the present invention may be any display device that performs color display by transitioning from blue light to other color lights, for example, a liquid crystal display device that performs color display by transitioning from blue light to other color lights, and a micro light emitting diode display.
  • the device, the organic light emitting diode display device and the like can effectively absorb the excess blue light in the blue light display device by using the blue light absorption cutoff film 30 to prevent the overall display effect from being blue.
  • the photoluminescent color filter 20 is a quantum dot color filter, and further includes a black pixel spacer layer 24, and the black pixel spacer layer 24
  • the red pixel unit 21, the green pixel unit 22, and the blue pixel unit 23 are spaced apart; the red pixel unit 21 and the green pixel unit 22 are respectively subjected to an inkjet printing process by using a red quantum dot ink material and a green quantum dot ink material.
  • the material of the blue pixel unit 23 is a transparent organic material.
  • the blue light display device is a liquid crystal display device, and further includes a color filter substrate 40 and an array substrate (not shown) disposed opposite to each other, and a liquid crystal layer (not shown) disposed between the color filter substrate 40 and the array substrate.
  • the blue light absorption cut-off film 30 and the photoluminescence color filter 20 are sequentially disposed on a side of the color filter substrate 40 adjacent to the liquid crystal layer, and the blue light source 10 is disposed as a backlight source under the array substrate.
  • a blue backlight is provided for the blue display device.
  • the blue light source 10 emits a blue backlight, and the blue backlight passes through the array substrate and the liquid crystal layer to illuminate the photoluminescence color filter 20, and the photoluminescence color filter is excited by the blue backlight.
  • the red quantum dot in the red pixel unit 21 emits a red light having a narrow width at half maximum, and forms a mixed light with the blue backlight which is not absorbed, and the mixed light then passes through the blue light absorption cut-off film 30, wherein The blue backlight is absorbed, thereby being filtered into high-purity red monochromatic light and reddish; similarly, the blue backlight emits green monochromatic light and becomes green after passing through the green pixel unit 22 and the blue absorption blocking film 30;
  • the position corresponding to the blue pixel unit 23 is made of a transparent organic material and does not have the coverage of the blue light absorption cut-off film 30, and is directly blue through the blue backlight; finally, the three primary colors of red, green, and blue required for color display are provided. Achieve color display and effectively improve display Color gamut index.
  • the blue light absorption cut-off film of the present invention is formed of a photoresist material, which comprises a resin, a yellow pigment, a dispersant, and a photoinitiator, which can effectively absorb excess blue light in the blue light display device.
  • the overall display effect is prevented from being blue, and the production method is simple.
  • the blue light display device of the present invention comprises the above-mentioned blue light absorption cut-off film, which can effectively absorb excess blue light in the blue light display device and prevent the overall display effect from being blue.

Abstract

一种蓝光吸收截止膜(30)及蓝光显示装置，蓝光吸收截止膜(30)由光刻胶材料形成，光刻胶材料包括树脂、黄色颜料、分散剂、及光引发剂，能够有效吸收蓝光显示装置中多余的蓝光而避免其整体显示效果偏蓝色，且制作方法简单。蓝光显示装置包括蓝光吸收截止膜(30)，能够有效吸收蓝光显示装置中多余的蓝光而避免其整体显示效果偏蓝色。

Description

蓝光吸收截止膜及蓝光显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种蓝光吸收截止膜及蓝光显示装置。
背景技术
随着显示技术的不断发展，人们对显示装置的显示质量要求也越来越高。量子点材料(Quantum Dot，简称QD)是指粒径在1-100nm的半导体晶粒。由于QD的粒径较小，小于或者接近相应本体材料的激子波尔半径，产生量子限域效应，本体材料连续的能带结构会转变为分立的能级结构，在外部光源的激发下，电子会发生跃迁，发射荧光。
QD这种特殊的分立能级结构使其半波宽较窄，因而可发出较高纯度的单色光，相比于传统显示器具有更高的发光效率。同时，由于QD的能级带隙，受其尺寸影响较大，可以通过调控QD的尺寸或使用不同成分的QD来激发出不同波长的光。现有的技术主要集中于将发光波段在红(R)光、绿(G)光、及蓝(B)光的量子点混合封装于工程塑料薄膜中而制成量子点薄膜(QD film)、或混合封装于玻璃管中而制成量子点管(QD tube)，并将该结构置于背光与显示系统之间的位置，以传统白光背光激发，以达到丰富色域的目的，但无论是QD film还是QD tube结构，对于量子点材料的使用手段较为单一，同时也由于需要如光学优质的聚乙烯对苯二酸酯(PET)膜及小孔径玻璃管的保护与封装，存在一定的成本过高以及材料信赖性问题。
近期关于量子点的应用，业内还有另一种方案，即将QD材料制备成量子点彩色滤光片(QD Color Filter，QDCF)以替代传统彩色滤光片的构想，业界已经取得了一些进展。目前，最常见的做法是，将QD材料掺杂在彩色滤光片的结构中，搭配蓝色背光使用，利用光致发光的特性，实现彩色显示。例如，现有的含有QDCF的液晶显示面板中，所述QDCF通常包括数个阵列排布的红色像素单元、绿色像素单元、及蓝色像素单元，其中，所述红色像素单元、绿色像素单元分别由红色量子点油墨材料、绿色量子点油墨材料经喷墨打印(inkjet)工艺形成，所述红色像素单元、绿色像素单元在蓝色背光的激发下分别发出红光和绿光，而所述蓝色像素单元则通过透明有机材料填充而形成，其发出的蓝光通过产生蓝色背光的背光 模组提供。由于蓝色背光并不是100％都可以用于激发QDCF，没有被利用的蓝色背光也会透过红色像素单元、绿色像素单元，导致画面无法正常显示，而整体偏蓝。
发明内容
本发明的目的在于提供一种蓝光吸收截止膜，由光刻胶材料形成，能够有效吸收蓝光显示装置中多余的蓝光而避免其整体显示效果偏蓝色，且制作方法简单。
本发明的目的还在于提供一种蓝光显示装置，包括上述的蓝光吸收截止膜，能够有效吸收蓝光显示装置中多余的蓝光而避免其整体显示效果偏蓝色。
为实现上述目的，本发明提供了一种蓝光吸收截止膜，其由光刻胶材料形成，所述光刻胶材料包括树脂、黄色颜料、分散剂、及光引发剂。
所述光刻胶材料中，所述黄色颜料为偶氮类、色酚类、苯并咪唑酮类、或偶氮缩合类的黄色颜料。
所述光刻胶材料中，所述树脂为甲基丙烯酸系树脂、或环氧系树脂。
本发明还提供一种蓝光显示装置，包括蓝光光源、设于所述蓝光光源上方的光致发光彩色滤光片、及设于所述光致发光彩色滤光片上方的如上所述的蓝光吸收截止膜。
所述光致发光彩色滤光片包括数个阵列排布的红色像素单元、绿色像素单元、及蓝色像素单元；
所述蓝光吸收截止膜对应蓝色像素单元设有开口。
所述光致发光彩色滤光片为量子点彩色滤光片；
所述红色像素单元、绿色像素单元分别由红色量子点油墨材料、绿色量子点油墨材料经喷墨打印工艺形成，所述蓝色像素单元的材料为透明有机材料。
所述光致发光彩色滤光片为荧光染料彩色滤光片。
所述蓝光吸收截止膜经图案化工艺形成，用于去除所述蓝光光源发出的穿过所述红色像素单元及绿色像素单元后未转化的蓝色荧光光线。
所述蓝光吸收截止膜的制作方法具体包括如下步骤：
步骤S1、由所述光刻胶材料涂布形成一层黄色膜层；
步骤S2、在所述黄色膜层上涂布形成光阻层；
步骤S3、提供掩膜板，利用所述掩膜板对所述光阻层进行曝光，对曝光后的光阻层进行显影，得到光阻图案层；
步骤S4、以所述光阻图案层为遮蔽层，对所述黄色膜层进行蚀刻，得到图案化的蓝光吸收截止膜。
所述的蓝光显示装置为液晶显示装置、微发光二极管显示装置、或有机发光二极管显示装置。
本发明还提供一种蓝光显示装置，包括蓝光光源、设于所述蓝光光源上方的光致发光彩色滤光片、及设于所述光致发光彩色滤光片上方的如上所述的蓝光吸收截止膜；
其中，所述光致发光彩色滤光片包括数个阵列排布的红色像素单元、绿色像素单元、及蓝色像素单元；
所述蓝光吸收截止膜对应蓝色像素单元设有开口；
其中，所述光致发光彩色滤光片为量子点彩色滤光片；
所述红色像素单元、绿色像素单元分别由红色量子点油墨材料、绿色量子点油墨材料经喷墨打印工艺形成，所述蓝色像素单元的材料为透明有机材料；
其中，所述蓝光吸收截止膜经图案化工艺形成，用于去除所述蓝光光源发出的穿过所述红色像素单元及绿色像素单元后未转化的蓝色荧光光线；
其中，所述蓝光吸收截止膜的制作方法具体包括如下步骤：
步骤S1、由所述光刻胶材料涂布形成一层黄色膜层；
步骤S2、在所述黄色膜层上涂布形成光阻层；
步骤S3、提供掩膜板，利用所述掩膜板对所述光阻层进行曝光，对曝光后的光阻层进行显影，得到光阻图案层；
步骤S4、以所述光阻图案层为遮蔽层，对所述黄色膜层进行蚀刻，得到图案化的蓝光吸收截止膜。
本发明的有益效果：本发明的蓝光吸收截止膜，由光刻胶材料形成，所述光刻胶材料包括树脂、黄色颜料、分散剂、及光引发剂，能够有效吸收蓝光显示装置中多余的蓝光而避免其整体显示效果偏蓝色，且制作方法简单。本发明的蓝光显示装置，包括上述的蓝光吸收截止膜，能够有效吸收蓝光显示装置中多余的蓝光而避免其整体显示效果偏蓝色。
附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明的技术方案及其他有益效果显而易见。
附图中，
图1为本发明的蓝光显示装置的结构示意图；
图2为本发明的蓝光吸收截止膜的制作方法的步骤S1的示意图；
图3为本发明的蓝光吸收截止膜的制作方法的步骤S2的示意图；
图4-5为本发明的蓝光吸收截止膜的制作方法的步骤S3的示意图；
图6为本发明的蓝光吸收截止膜的制作方法的步骤S4的示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
本发明首先提供一种蓝光吸收截止膜，其由光刻胶材料形成，所述光刻胶材料包括树脂、黄色颜料、分散剂、及光引发剂。
具体地，所述光刻胶材料中，所述黄色颜料为偶氮类(如汉沙黄10G、联苯胺黄)、色酚类(如永固黄)、苯并咪唑酮类(如C.I.颜料黄154)、或偶氮缩合类(如固美脱黄3G)的黄色颜料。
具体地，所述光刻胶材料中，所述树脂为甲基丙烯酸系树脂、或环氧系树脂，即所述光刻胶材料为通过在甲基丙烯酸系树脂、或环氧系树脂中添加黄色颜料、分散剂、及光引发剂等所形成的材料。
本发明的蓝光吸收截止膜，由光刻胶材料形成，所述光刻胶材料包括树脂、黄色颜料、分散剂、及光引发剂，其可以应用于一切通过蓝光过渡到其他颜色光而进行彩色显示的蓝光显示装置中，例如通过蓝光过渡到其他颜色光而进行彩色显示的液晶显示装置、微发光二极管(Micro LED)显示装置、及有机发光二极管显示装置(OLED)等，能够有效吸收蓝光显示装置中多余的蓝光而避免其整体显示效果偏蓝色，且制作方法简单。
请参阅图1，基于上述的蓝光吸收截止膜，本发明还提供一种蓝光显示装置，包括蓝光光源10、设于所述蓝光光源10上方的光致发光彩色滤光片20、及设于所述光致发光彩色滤光片20上方的如上述的蓝光吸收截止膜30。
具体地，所述光致发光彩色滤光片20包括数个阵列排布的红色像素单元21、绿色像素单元22、及蓝色像素单元23；所述蓝光吸收截止膜30对应蓝色像素单元23设有开口31。
具体地，所述光致发光彩色滤光片20可以为量子点彩色滤光片，也可以为由荧光染料掺杂而形成的荧光染料彩色滤光片、或其他光致发光的彩色滤光片。
具体地，所述蓝光吸收截止膜30经图案化工艺形成，用于去除所述蓝光光源10发出的穿过所述红色像素单元21及绿色像素单元22后未转化的蓝色荧光光线。
具体地，所述蓝光吸收截止膜30的制作方法具体包括如下步骤：
步骤S1、如图2所示，提供所述光刻胶材料，由所述光刻胶材料涂布形成一层能够吸收蓝光的黄色膜层35。
步骤S2、如图3所示，在所述黄色膜层35上涂布形成光阻层55。
步骤S3、如图4及图5所示，提供掩膜板70，利用所述掩膜板70对所述光阻层55进行曝光，对曝光后的光阻层55进行显影，得到光阻图案层50。
步骤S4、如图6所示，以所述光阻图案层50为遮蔽层，对所述黄色膜层35进行蚀刻，得到图案化的蓝光吸收截止膜30，从而完成蓝光吸收截止膜30的制作。
具体地，本发明的蓝光显示装置可以为任意一种通过蓝光过渡到其他颜色光而进行彩色显示的显示装置，例如通过蓝光过渡到其他颜色光而进行彩色显示的液晶显示装置、微发光二极管显示装置、及有机发光二极管显示装置等，其通过采用蓝光吸收截止膜30，能够有效吸收蓝光显示装置中多余的蓝光而避免其整体显示效果偏蓝色。
具体地，在本发明的蓝光显示装置一优选实施例中，所述光致发光彩色滤光片20为量子点彩色滤光片，还包括黑色像素间隔层24，所述黑色像素间隔层24将所述红色像素单元21、绿色像素单元22、及蓝色像素单元23间隔开；所述红色像素单元21、绿色像素单元22分别由红色量子点油墨材料、绿色量子点油墨材料经喷墨打印工艺形成，所述蓝色像素单元23的材料为透明有机材料。所述蓝光显示装置为液晶显示装置，还包括上下相对设置的彩膜基板40与阵列基板(未图示)、及设于彩膜基板40与阵列基板之间的液晶层(未图示)，所述蓝光吸收截止膜30、光致发光彩色滤光片20依次设于所述彩膜基板40靠近液晶层的一侧，所述蓝光光源10作为背光光源，设于所述阵列基板的下方，为所述蓝光显示装置提供蓝色背光。所述蓝光光源10发出蓝色背光，所述蓝色背光穿过阵列基板与液晶层而照射在光致发光彩色滤光片20上，在蓝色背光的激发下，所述光致发光彩色滤光片20中，红色像素单元21内的红色量子点会发出半高宽很窄的红光，与未被吸收的蓝色背光形成混合光，该混合光随后经过蓝光吸收截止膜30后，其中的蓝色背光被吸收，从而被滤成高纯度的红色单色光而显红色；同理，蓝色背光经绿色像素单元22及蓝光吸收截止膜30后发出绿色单色光而显绿色；而对应蓝色像素单元23的位置由于采用透明有机材料制作且没有蓝光吸收截止膜30的覆盖而直接透过蓝色背光而显蓝色；最终提供了彩色显示所需的红、绿、蓝三原色，实现了彩色显示，并能够有效提高显 示色域指数。
综上所述，本发明的蓝光吸收截止膜，由光刻胶材料形成，所述光刻胶材料包括树脂、黄色颜料、分散剂、及光引发剂，能够有效吸收蓝光显示装置中多余的蓝光而避免其整体显示效果偏蓝色，且制作方法简单。本发明的蓝光显示装置，包括上述的蓝光吸收截止膜，能够有效吸收蓝光显示装置中多余的蓝光而避免其整体显示效果偏蓝色。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (12)

  1. 一种蓝光吸收截止膜，由光刻胶材料形成，所述光刻胶材料包括树脂、黄色颜料、分散剂、及光引发剂。
  2. 如权利要求1所述的蓝光吸收截止膜，其中，所述光刻胶材料中，所述黄色颜料为偶氮类、色酚类、苯并咪唑酮类、或偶氮缩合类的黄色颜料。
  3. 如权利要求1所述的蓝光吸收截止膜，其中，所述光刻胶材料中，所述树脂为甲基丙烯酸系树脂、或环氧系树脂。
  4. 一种蓝光显示装置，包括蓝光光源、设于所述蓝光光源上方的光致发光彩色滤光片、及设于所述光致发光彩色滤光片上方的如权利要求1所述的蓝光吸收截止膜。
  5. 如权利要求4所述的蓝光显示装置，其中，所述光致发光彩色滤光片包括数个阵列排布的红色像素单元、绿色像素单元、及蓝色像素单元；
    所述蓝光吸收截止膜对应蓝色像素单元设有开口。
  6. 如权利要求5所述的蓝光显示装置，其中，所述光致发光彩色滤光片为量子点彩色滤光片；
    所述红色像素单元、绿色像素单元分别由红色量子点油墨材料、绿色量子点油墨材料经喷墨打印工艺形成，所述蓝色像素单元的材料为透明有机材料。
  7. 如权利要求5所述的蓝光显示装置，其中，所述光致发光彩色滤光片为荧光染料彩色滤光片。
  8. 如权利要求5所述的蓝光显示装置，其中，所述蓝光吸收截止膜经图案化工艺形成，用于去除所述蓝光光源发出的穿过所述红色像素单元及绿色像素单元后未转化的蓝色荧光光线。
  9. 如权利要求8所述的蓝光显示装置，其中，所述蓝光吸收截止膜的制作方法具体包括如下步骤：
    步骤S1、由所述光刻胶材料涂布形成一层黄色膜层；
    步骤S2、在所述黄色膜层上涂布形成光阻层；
    步骤S3、提供掩膜板，利用所述掩膜板对所述光阻层进行曝光，对曝光后的光阻层进行显影，得到光阻图案层；
    步骤S4、以所述光阻图案层为遮蔽层，对所述黄色膜层进行蚀刻，得到图案化的蓝光吸收截止膜。
  10. 如权利要求4所述的蓝光显示装置，其中，为液晶显示装置、微发光二极管显示装置、或有机发光二极管显示装置。
  11. 一种蓝光显示装置，包括蓝光光源、设于所述蓝光光源上方的光致发光彩色滤光片、及设于所述光致发光彩色滤光片上方的如权利要求1所述的蓝光吸收截止膜；
    其中，所述光致发光彩色滤光片包括数个阵列排布的红色像素单元、绿色像素单元、及蓝色像素单元；
    所述蓝光吸收截止膜对应蓝色像素单元设有开口；
    其中，所述光致发光彩色滤光片为量子点彩色滤光片；
    所述红色像素单元、绿色像素单元分别由红色量子点油墨材料、绿色量子点油墨材料经喷墨打印工艺形成，所述蓝色像素单元的材料为透明有机材料；
    其中，所述蓝光吸收截止膜经图案化工艺形成，用于去除所述蓝光光源发出的穿过所述红色像素单元及绿色像素单元后未转化的蓝色荧光光线；
    其中，所述蓝光吸收截止膜的制作方法具体包括如下步骤：
    步骤S1、由所述光刻胶材料涂布形成一层黄色膜层；
    步骤S2、在所述黄色膜层上涂布形成光阻层；
    步骤S3、提供掩膜板，利用所述掩膜板对所述光阻层进行曝光，对曝光后的光阻层进行显影，得到光阻图案层；
    步骤S4、以所述光阻图案层为遮蔽层，对所述黄色膜层进行蚀刻，得到图案化的蓝光吸收截止膜。
  12. 如权利要求11所述的蓝光显示装置，其中，为液晶显示装置、微发光二极管显示装置、或有机发光二极管显示装置。
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Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107975763B (zh) * 2017-11-28 2019-12-24 宁波激智科技股份有限公司 一种具有防蓝光效果的量子点膜
CN108181759A (zh) * 2018-02-07 2018-06-19 青岛海信电器股份有限公司 一种量子点彩色滤光片及其制备方法、液晶面板、液晶显示装置
CN207992648U (zh) * 2018-03-30 2018-10-19 深圳Tcl新技术有限公司 量子点液晶面板及显示装置
CN111128035A (zh) * 2018-10-30 2020-05-08 咸阳彩虹光电科技有限公司 一种oled显示面板及其显示器
CN109298563A (zh) * 2018-11-29 2019-02-01 武汉华星光电技术有限公司 一种显示面板及其显示装置
CN110082955A (zh) * 2019-03-18 2019-08-02 东莞市托普莱斯光电技术有限公司 一种抗蓝光的背光模组
CN111077732A (zh) * 2019-12-20 2020-04-28 深圳市华星光电半导体显示技术有限公司 光耦合输出透镜的材料组成物及制造方法
CN113451364A (zh) * 2020-03-27 2021-09-28 咸阳彩虹光电科技有限公司 一种oled显示结构、显示装置
CN117501852A (zh) * 2022-04-20 2024-02-02 京东方科技集团股份有限公司 显示基板及显示装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006310303A (ja) * 2005-04-29 2006-11-09 Samsung Electronics Co Ltd 自発光液晶表示装置
CN103226260A (zh) * 2013-04-09 2013-07-31 北京京东方光电科技有限公司 液晶显示屏、显示装置及量子点层图形化的方法
CN103278876A (zh) * 2013-05-28 2013-09-04 京东方科技集团股份有限公司 量子点彩色滤光片及其制作方法、显示装置
CN105278153A (zh) * 2015-11-13 2016-01-27 深圳市华星光电技术有限公司 量子点彩膜基板的制备方法及量子点彩膜基板
US20160139307A1 (en) * 1998-06-03 2016-05-19 The Regents Of The University Of California Electronic displays using optically pumped luminescent semiconductor nanocrystals
WO2016181771A1 (ja) * 2015-05-13 2016-11-17 株式会社オルタステクノロジー 液晶表示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160139307A1 (en) * 1998-06-03 2016-05-19 The Regents Of The University Of California Electronic displays using optically pumped luminescent semiconductor nanocrystals
JP2006310303A (ja) * 2005-04-29 2006-11-09 Samsung Electronics Co Ltd 自発光液晶表示装置
CN103226260A (zh) * 2013-04-09 2013-07-31 北京京东方光电科技有限公司 液晶显示屏、显示装置及量子点层图形化的方法
CN103278876A (zh) * 2013-05-28 2013-09-04 京东方科技集团股份有限公司 量子点彩色滤光片及其制作方法、显示装置
WO2016181771A1 (ja) * 2015-05-13 2016-11-17 株式会社オルタステクノロジー 液晶表示装置
CN105278153A (zh) * 2015-11-13 2016-01-27 深圳市华星光电技术有限公司 量子点彩膜基板的制备方法及量子点彩膜基板

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