WO2021174609A1 - 一种偏光片及显示面板 - Google Patents

一种偏光片及显示面板 Download PDF

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Publication number
WO2021174609A1
WO2021174609A1 PCT/CN2020/081060 CN2020081060W WO2021174609A1 WO 2021174609 A1 WO2021174609 A1 WO 2021174609A1 CN 2020081060 W CN2020081060 W CN 2020081060W WO 2021174609 A1 WO2021174609 A1 WO 2021174609A1
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WIPO (PCT)
Prior art keywords
layer
protective layer
grating structure
disposed
polarizer
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PCT/CN2020/081060
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English (en)
French (fr)
Inventor
陈慧
Original Assignee
武汉华星光电半导体显示技术有限公司
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Application filed by 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US16/756,500 priority Critical patent/US20210278583A1/en
Priority to EP20842664.3A priority patent/EP4116746A4/en
Publication of WO2021174609A1 publication Critical patent/WO2021174609A1/zh

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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/30Polarising elements
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/14Protective coatings, e.g. hard coatings
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/18Diffraction gratings
    • G02B5/1814Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/80Constructional details
    • H10K50/868Arrangements for polarized light emission

Definitions

  • This application relates to the field of display technology, and in particular to a polarizer and a display panel.
  • the problem of large viewing angle deviation in OLED devices is mainly due to the filtering effect in the microcavity structure, which causes the full width at half maxima (FWHM) of light in top-emitting OLED devices to be narrow. This is due to the large viewing angle.
  • FWHM full width at half maxima
  • the embodiment of the present application provides a polarizer to solve the problem that in the existing display panel, the chromaticity attenuation rate of red, green, and blue light is different at a large viewing angle. Lead to technical problems with color casts.
  • an embodiment of the present application provides a polarizer.
  • the polarizer includes a linearly polarized layer and a circularly polarized layer that are arranged opposite to each other. Grating structure.
  • the grating constant of the grating structure is 0.08 to 1.2 microns.
  • the polarizer further includes an upper protective layer disposed on the side of the linear polarization layer away from the circular polarization layer, and an upper protective layer disposed between the linear polarization layer and the circular polarization layer. Lower protective layer.
  • the grating structure is disposed on the upper protective layer or/and the lower protective layer.
  • the grating structure is disposed on a side of the upper protective layer away from the linearly biased layer, or/and the grating structure is disposed on a side of the lower protective layer away from the linearly biased layer. Side up.
  • the grating structure is disposed on a side of the upper protective layer close to the linearly biased layer, or/and the grating structure is disposed on a side of the lower protective layer close to the linearly biased layer. Side up.
  • the grating structure and the upper protective layer are integrally formed; when the grating structure is disposed on the lower protective layer, the grating structure and The lower protective layer is integrally formed.
  • the preparation materials of the upper protective layer and the lower protective layer and the grating structure include optical resin materials.
  • the polarizer further includes an adhesive layer disposed on the side of the circular polarization layer away from the linear polarization layer.
  • the present application also provides a display panel.
  • the display panel includes a display screen body and a polarizer; A deflection layer and a circular deflection layer, and a grating structure is provided on the side of the linear deflection layer close to or/and far from the circular deflection layer.
  • the grating constant of the grating structure is 0.08 to 1.2 microns.
  • the polarizer further includes an upper protective layer disposed on the side of the linear polarization layer away from the circular polarization layer, and an upper protective layer disposed between the linear polarization layer and the circular polarization layer. Lower protective layer.
  • the grating structure is disposed on the upper protective layer or/and the lower protective layer.
  • the grating structure is disposed on a side of the upper protective layer away from the linearly biased layer, or/and the grating structure is disposed on a side of the lower protective layer away from the linearly biased layer. Side up.
  • the grating structure is disposed on a side of the upper protective layer close to the linearly biased layer, or/and the grating structure is disposed on a side of the lower protective layer close to the linearly biased layer. Side up.
  • the grating structure and the upper protective layer are integrally formed; when the grating structure is disposed on the lower protective layer, the grating structure and The lower protective layer is integrally formed.
  • the preparation materials of the upper protective layer and the lower protective layer and the grating structure include optical resin materials.
  • the polarizer further includes an adhesive layer disposed on the side of the circular polarization layer away from the linear polarization layer.
  • the overall structure of the linear polarization layer and the circular polarization layer is not damaged.
  • the light emitted by the display screen undergoes a diffraction effect when passing through the grating structure.
  • the light is due to the diffraction effect. Will be distributed in the area of larger viewing angle, so that the light intensity at the large viewing angle area is compensated, and the color shift caused by the different degree of light intensity drop of each color light is reduced without reducing the overall brightness of the display panel. , Improve display quality.
  • FIG. 1 is a schematic diagram of the structure of the polarizer in the first embodiment of the present invention
  • FIG. 2 is a schematic diagram of the light intensity distribution of red light, green light, and blue light at different viewing angles after light intensity compensation in the present invention
  • 3 and 4 are schematic diagrams of the structure of the polarizer in the second embodiment of the present invention.
  • FIG. 5 is a schematic diagram of the structure of a display panel in an embodiment of the present invention.
  • the present invention is aimed at the existing display panel, due to the different chromaticity attenuation rates of red light, green light, and blue light at a large viewing angle, resulting in different degrees of light intensity drop of each color light, resulting in a technical problem of color shift.
  • the present invention can solve the above-mentioned problems.
  • the polarizer 10 includes a linearly polarized layer 11 and a circularly polarized layer 12 arranged oppositely, and the linearly polarized layer 11 is close to or/and far from the circularly polarized layer 12
  • a grating structure 16 is provided on one side.
  • the preparation material of the linear polarization layer 11 may be polyvinyl alcohol
  • the circular polarization layer 12 is used to convert the linear polarization into a circular polarization
  • the grating structure 16 may be a phase grating.
  • the grating constant of the grating structure 16 is 0.08 to 1.2 micrometers, and the grating constant of the grating structure 16 may be 0.1 micrometers, 0.2 micrometers, 0.5 micrometers, 0.8 micrometers, or 1 micrometer.
  • the attenuation rate and the attenuation degree of blue light are the largest compared to red light and green light.
  • the grating constant of the grating structure 16 is designed so that the grating The constant is close to the width of the short wavelength of the blue light, which makes the diffraction effect of the blue light stronger, which can slow down the light intensity attenuation of the blue light at a large viewing angle, thereby further reducing the color shift.
  • Figure 2 is a light intensity distribution diagram of red light, green light, and blue light at different viewing angles after light intensity compensation.
  • the abscissa indicates the large viewing angle
  • the ordinate indicates the light intensity
  • the dotted line indicates the red light Intensity distribution
  • the dotted line indicates the intensity distribution of green light
  • the solid line indicates the intensity distribution of blue light.
  • the polarizer 10 further includes an upper protective layer 13 arranged on the side of the linear polarization layer 11 away from the circular polarization layer 12, and an upper protective layer 13 arranged on the linear polarization layer 11 and the circular polarization layer 12 ⁇ 14 ⁇ Between the lower protective layer 14.
  • the grating structure 16 is disposed on the upper protective layer 13 or/and the lower protective layer 14.
  • the preparation materials of the upper protective layer 13 and the lower protective layer 14 and the grating structure 16 include optical resin materials, which include, but are not limited to, TAC (triacetyl cellulose), PMMA (acrylic resin) and
  • the upper protective layer 13 and the lower protective layer 14 formed of a polymer resin material such as COP (cycloolefin polymer) and an optical resin material can be used as a protective layer to protect the linear bias layer 11 and can be used as a base material of the grating structure 16.
  • the grating structure 16 can cover the entire surface of the upper protective layer 13 or/and the lower protective layer 14, so that the light of each color can produce a diffraction effect, so that the light can be obtained in each area at a large viewing angle. Strong compensation, while adjusting the grating constant of the grating structure 16, makes the diffraction effect of blue light the strongest and reduces the color shift.
  • the grating structure 16 can also be arranged only at a preset area of the polarizer 10, and the preset area is the blue sub-pixels on the polarizer 10 and the display body 20 when the polarizer 10 is attached to the display body 20. Corresponding area.
  • the grating structure 16 is arranged on the side of the upper protective layer 13 away from the linear offset layer 11, or/and the grating structure 16 is arranged on the lower protective layer 14 away from The linear offset layer 11 is on one side.
  • the grating structure 16 when the grating structure 16 is disposed on the upper protective layer 13, the grating structure 16 is disposed on the side of the upper protective layer 13 away from the linear offset layer 11; the grating structure 16 is disposed on the When the lower protective layer 14 is used, the grating structure 16 is disposed on the side of the lower protective layer 14 away from the linear offset layer 11.
  • the lower protective layer 14, the linear bias layer 11, and the upper protective layer 13 are first formed in sequence, and then the upper protective layer 13 can be applied by nanoimprinting techniques.
  • the stretched circular deflection layer 12 is attached to the outer surface of the lower protective layer 14, or directly on the outer surface of the lower protective layer 14. The surface is coated to form a circular deflection layer 12.
  • the grating structure 16 is disposed on the side of the upper protective layer 13 close to the linear offset layer 11, or/and the grating structure 16 It is arranged on the side of the lower protection layer 14 close to the linear offset layer 11.
  • the grating structure 16 when the grating structure 16 is disposed on the upper protective layer 13, the grating structure 16 is disposed on the side of the upper protective layer 13 close to the linearly biased layer 11; the grating structure 16 is disposed on the When the lower protective layer 14 is used, the grating structure 16 is disposed on the side of the lower protective layer 14 close to the linear offset layer 11.
  • nanoimprinting techniques may be used to form the grating structure 16 on the surface of the upper protective layer 13 or/and the surface of the lower protective layer 14, and then It is sufficient that the side of the upper protective layer 13 or/and the lower protective layer 14 with the grating structure 16 is attached to the linear deflection layer 11, and the stretched circular deflection layer 12 is attached to the outer side of the lower protective layer 14. The surface, or directly coat the outer surface of the lower protective layer 14 to form the circular deflection layer 12.
  • FIGS. 3 and 4 only illustrate the case where only the grating structure 16 is provided on the upper protective layer 13 or the lower protective layer 14. In actual implementation, the upper protective layer 13 and the lower protective layer 14 may also be provided. All set the grating structure 16.
  • the grating structure 16 when the grating structure 16 is disposed on the upper protective layer 13, the grating structure 16 and the upper protective layer 13 are integrally formed; when the grating structure 16 is disposed on the lower protective layer 14, the The grating structure 16 and the lower protective layer 14 are integrally formed.
  • the grating structure 16 may be formed by a plurality of transparent prisms arranged at intervals, and the grating structure 16 may also be formed by hollowing out the entire structure.
  • the polarizer 10 further includes an adhesive layer 15 disposed on the side of the circular polarization layer 12 away from the linear polarization layer 11, and the adhesive layer 15 is used to attach the polarizer 10 to On the display screen body 20, the adhesive layer 15 may be made of polysulfone amide.
  • the present invention also provides a display panel. As shown in FIG. On the light-emitting side of the display screen body 20, the polarizer 10 is attached to the light-emitting side of the display screen body 20 through an adhesive layer 15.
  • the beneficial effect of the present invention is: by arranging the grating structure 16 on the upper protective layer 13 or/and the lower protective layer 14, the overall structure of the linear deflection layer 11 and the circular deflection layer 12 is not damaged, and the display screen body 20 emits Diffraction effect occurs when light passes through the grating structure 16, and the light will be distributed to a larger viewing angle area due to the diffraction effect, so that the light intensity at the large viewing angle area is compensated, and the overall brightness of the display panel is reduced without reducing the overall brightness of the display panel.
  • the light intensity of each color light is different to the extent that it causes the color shift, and the display quality is improved.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Polarising Elements (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

本申请公开了一种偏光片及显示面板,所述偏光片包括相对设置的线偏层和圆偏层,所述线偏层靠近或/和远离所述圆偏层的一侧设置有光栅结构。

Description

一种偏光片及显示面板 技术领域
本申请涉及显示技术领域,尤其涉及一种偏光片及显示面板。
背景技术
OLED器件中存在大视角色偏问题,主要是因为微腔结构中的滤波效应导致顶发射OLED器件中光的半峰全宽较窄(full width at half maxima,FWHM),这是由于在大视角时红光、绿光以及蓝光的色度衰减速率不同,导致各色光的光强下降的程度不同,从而导致色偏的产生。
技术问题
本申请实施例提供一种偏光片,以解决现有的显示面板中,由于在大视角时红光、绿光以及蓝光的色度衰减速率不同,导致各色光的光强下降的程度不同,从而导致产生色偏的技术问题。
技术解决方案
第一方面,本申请实施例提供一种偏光片,所述偏光片包括相对设置的线偏层和圆偏层,所述线偏层靠近或/和远离所述圆偏层的一侧设置有光栅结构。
在一些实施例中,所述光栅结构的光栅常数为0.08~1.2微米。
在一些实施例中,所述偏光片还包括设置于所述线偏层远离所述圆偏层的一侧上的上保护层以及设置于所述线偏层和所述圆偏层之间的下保护层。
在一些实施例中,所述光栅结构设置于所述上保护层或/和所述下保护层上。
在一些实施例中,所述光栅结构设置于所述上保护层远离所述线偏层的一侧上,或/和所述光栅结构设置于所述下保护层远离所述线偏层的一侧上。
在一些实施例中,所述光栅结构设置于所述上保护层靠近所述线偏层的一侧上,或/和所述光栅结构设置于所述下保护层靠近所述线偏层的一侧上。
在一些实施例中,所述光栅结构设置于所述上保护层时,所述光栅结构与所述上保护层一体成型;所述光栅结构设置于所述下保护层时,所述光栅结构与所述下保护层一体成型。
在一些实施例中,所述上保护层和所述下保护层以及所述光栅结构的制备材料包括光学树脂材料。
在一些实施例中,所述偏光片还包括设置于所述圆偏层远离所述线偏层的一侧上的粘结层。
第二方面,本申请还提供一种显示面板,所述显示面板包括显示屏体以及偏光片;所述偏光片设置于所述显示屏体的出光侧上,所述偏光片包括相对设置的线偏层和圆偏层,所述线偏层靠近或/和远离所述圆偏层的一侧设置有光栅结构。
在一些实施例中,所述光栅结构的光栅常数为0.08~1.2微米。
在一些实施例中,所述偏光片还包括设置于所述线偏层远离所述圆偏层的一侧上的上保护层以及设置于所述线偏层和所述圆偏层之间的下保护层。
在一些实施例中,所述光栅结构设置于所述上保护层或/和所述下保护层上。
在一些实施例中,所述光栅结构设置于所述上保护层远离所述线偏层的一侧上,或/和所述光栅结构设置于所述下保护层远离所述线偏层的一侧上。
在一些实施例中,所述光栅结构设置于所述上保护层靠近所述线偏层的一侧上,或/和所述光栅结构设置于所述下保护层靠近所述线偏层的一侧上。
在一些实施例中,所述光栅结构设置于所述上保护层时,所述光栅结构与所述上保护层一体成型;所述光栅结构设置于所述下保护层时,所述光栅结构与所述下保护层一体成型。
在一些实施例中,所述上保护层和所述下保护层以及所述光栅结构的制备材料包括光学树脂材料。
在一些实施例中,所述偏光片还包括设置于所述圆偏层远离所述线偏层的一侧上的粘结层。
有益效果
通过在上保护层或/和所述下保护层上设置光栅结构,不破坏线偏层和圆偏层的整体结构,同时显示屏体射出的光经过光栅结构时发生衍射效应,光由于衍射效应会分布到更大视角的区域中,从而使得大视角区域处的光强得到补偿,在不降低显示面板的整体亮度的前提下,减小各色光的光强下降的程度不同导致产生的色偏,提高显示品质。
附图说明
图1为本发明第一种实施方式中偏光片的结构示意图;
图2为本发明中光强补偿后的不同视角时红色光、绿色光以及蓝色光的光强分布示意图;
图3和图4为本发明第二种实施方式中偏光片的结构示意图;
图5为本发明一实施方式中显示面板的结构示意图。
附图标记:
10、偏光片;11、线偏层;12、圆偏层;13、上保护层;14、下保护层;15、粘结层;16、光栅结构;20、显示屏体。
本申请的实施方式
为使本申请的目的、技术方案及效果更加清楚、明确,以下参照附图并举实施例对本申请进一步详细说明。应当理解,此处所描述的具体实施例仅用以解释本申请,并不用于限定本申请。
本发明针对现有的显示面板中,由于在大视角时红光、绿光以及蓝光的色度衰减速率不同,导致各色光的光强下降的程度不同,从而导致产生色偏的技术问题。本发明可以解决上述问题。
一种偏光片,如图1和图2所示,所述偏光片10包括相对设置的线偏层11和圆偏层12,所述线偏层11靠近或/和远离所述圆偏层12的一侧设置有光栅结构16。
其中,所述线偏层11的制备材料可以为聚乙烯醇,所述圆偏层12用于将线偏转化为圆偏,所述光栅结构16可以为相位光栅。
需要说明的是,对于本领域技术人员可知,光通过波长量级的微结构之后会发生衍射,根据能量守恒的原理可以理解,原来集中的光强由于衍射效应分布到了视场角更大的区域,从而使得其他区域的光强得到补充,同理,将偏光片10贴附于显示屏体20的出光侧后,在通过光栅结构16的光由于衍射效应会分布到更大视角中,从而使得大视角区域的光强得到补偿,在不降低显示面板的整体亮度的前提下,减小各色光的光强下降的程度不同导致产生的色偏,提高显示品质。
具体的,所述光栅结构16的光栅常数为0.08~1.2微米,所述光栅结构16的光栅常数可以为0.1微米、0.2微米、0.5微米、0.8微米或1微米。
需要说明的是,显示屏体20发射的光通过偏光片10时,相比于红色光和绿色光,蓝色光的衰减速率跟衰减程度最大,通过对光栅结构16的光栅常数进行设计,使得光栅常数接近蓝色光的短波长的宽度,从而使得蓝色光的衍射效应更强,该衍射效应可以减缓蓝色光在大视角的光强衰减,从而进一步减小色偏。
需要说明的是,图2为光强补偿后的不同视角时红色光、绿色光以及蓝色光的光强分布图,横坐标示意大视角角度,纵坐标示意光强强度,虚线示意红色光的光强分布,点画线示意绿色光的光强分布,实线示意蓝色光的光强分布。从图2中可知,光强补偿后蓝色光的光强缓慢下降,在大视角时蓝色光与红色光和绿色光的下降程度趋于一致。
具体的,所述偏光片10还包括设置于所述线偏层11远离所述圆偏层12的一侧上的上保护层13以及设置于所述线偏层11和所述圆偏层12之间的下保护层14。
具体的,所述光栅结构16设置于所述上保护层13或/和所述下保护层14上。
其中,所述上保护层13和所述下保护层14以及所述光栅结构16的制备材料包括光学树脂材料,光学树脂材料包括但不限于TAC(三醋酸纤维素)、PMMA(亚克力树脂)及COP(环烯烃聚合物)等高分子树脂材料,光学树脂材料形成的上保护层13和下保护层14既可以作为保护层对线偏层11进行保护,又可以作为光栅结构16的基材。
需要说明的是,所述光栅结构16可以整面覆盖所述上保护层13或/和所述下保护层14,使得各色光都可以产生衍射效应,从而使得大视角时各区域均可以得到光强补偿,同时通过对光栅结构16的光栅常数进行调整,使得蓝色光的衍射效应最强,减小色偏。所述光栅结构16还可以仅设置在偏光片10的预设区域处,预设区域为偏光片10贴附于显示屏体20上时偏光片10上与显示屏体20中的蓝色子像素对应的区域。
在第一种实施方式中,所述光栅结构16设置于所述上保护层13远离所述线偏层11的一侧上,或/和所述光栅结构16设置于所述下保护层14远离所述线偏层11的一侧上。
即所述光栅结构16设置于所述上保护层13时,所述光栅结构16设置于所述上保护层13远离所述线偏层11的一侧上;所述光栅结构16设置于所述下保护层14时,所述光栅结构16设置于所述下保护层14远离所述线偏层11的一侧上。
需要说明的是,制备偏光片10的过程中,先形成依次层叠的下保护层14、线偏层11和上保护层13后,随后可以使用过纳米压印等技术在所述上保护层13的外表面或/和所述下保护层14的外表面形成所述光栅结构16后,将拉伸成型的圆偏层12贴附在下保护层14的外表面,或直接在下保护层14的外表面涂布形成圆偏层12。
在第二种实施方式中,如图3和图4所示,所述光栅结构16设置于所述上保护层13靠近所述线偏层11的一侧上,或/和所述光栅结构16设置于所述下保护层14靠近所述线偏层11的一侧上。
即所述光栅结构16设置于所述上保护层13时,所述光栅结构16设置于所述上保护层13靠近所述线偏层11的一侧上;所述光栅结构16设置于所述下保护层14时,所述光栅结构16设置于所述下保护层14靠近所述线偏层11的一侧上。
需要说明的是,制备偏光片10的过程中,可以使用过纳米压印等技术在所述上保护层13的表面或/和所述下保护层14的表面形成所述光栅结构16后,将所述上保护层13或/和所述下保护层14具有光栅结构16的一侧贴附于线偏层11上即可,将拉伸成型的圆偏层12贴附在下保护层14的外表面,或直接在下保护层14的外表面涂布形成圆偏层12。
需要说明的是,图3和图4中仅示意了仅在上保护层13或下保护层14上设置光栅结构16的情况,实际实施中,也可以在上保护层13和下保护层14上均设置光栅结构16。
具体的,所述光栅结构16设置于所述上保护层13时,所述光栅结构16与所述上保护层13一体成型;所述光栅结构16设置于所述下保护层14时,所述光栅结构16与所述下保护层14一体成型。
具体的,所述光栅结构16可以为多个透明棱镜间隔设置形成,所述光栅结构16也可以通过对整面结构做镂空处理形成。
具体的,所述偏光片10还包括设置于所述圆偏层12远离所述线偏层11的一侧上的粘结层15,所述粘结层15用于将偏光片10贴附于显示屏体20上,所述粘结层15的制备材料可以为聚砜酰胺。
基于上述偏光片10,本发明还提供一种显示面板,如图5所示,所述显示面板包括显示屏体20以及上述任一实施方式中的偏光片10;所述偏光片10设置于所述显示屏体20的出光侧上,所述偏光片10通过粘结层15贴附于所述显示屏体20的出光侧。
本发明的有益效果为:通过在上保护层13或/和所述下保护层14上设置光栅结构16,不破坏线偏层11和圆偏层12的整体结构,同时显示屏体20射出的光经过光栅结构16时发生衍射效应,光由于衍射效应会分布到更大视角的区域中,从而使得大视角区域处的光强得到补偿,在不降低显示面板的整体亮度的前提下,减小各色光的光强下降的程度不同导致产生的色偏,提高显示品质。
在上述实施例中,对各个实施例的描述都各有侧重,某个实施例中没有详述的部分,可以参见其他实施例的相关描述。
本文中应用了具体个例对本申请的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想;本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (18)

  1. 一种偏光片,其中,所述偏光片包括相对设置的线偏层和圆偏层,所述线偏层靠近或/和远离所述圆偏层的一侧设置有光栅结构。
  2. 根据权利要求1所述的偏光片,其中,所述光栅结构的光栅常数为0.08~1.2微米。
  3. 根据权利要求1所述的偏光片,其中,所述偏光片还包括设置于所述线偏层远离所述圆偏层的一侧上的上保护层以及设置于所述线偏层和所述圆偏层之间的下保护层。
  4. 根据权利要求3所述的偏光片,其中,所述光栅结构设置于所述上保护层或/和所述下保护层上。
  5. 根据权利要求4所述的偏光片,其中,所述光栅结构设置于所述上保护层远离所述线偏层的一侧上,或/和所述光栅结构设置于所述下保护层远离所述线偏层的一侧上。
  6. 根据权利要求4所述的偏光片,其中,所述光栅结构设置于所述上保护层靠近所述线偏层的一侧上,或/和所述光栅结构设置于所述下保护层靠近所述线偏层的一侧上。
  7. 根据权利要求4所述的偏光片,其中,所述光栅结构设置于所述上保护层时,所述光栅结构与所述上保护层一体成型;所述光栅结构设置于所述下保护层时,所述光栅结构与所述下保护层一体成型。
  8. 根据权利要求3所述的偏光片,其中,所述上保护层和所述下保护层以及所述光栅结构的制备材料包括光学树脂材料。
  9. 根据权利要求3所述的偏光片,其中,所述偏光片还包括设置于所述圆偏层远离所述线偏层的一侧上的粘结层。
  10. 一种显示面板,其中,所述显示面板包括显示屏体以及偏光片;所述偏光片设置于所述显示屏体的出光侧上,所述偏光片包括相对设置的线偏层和圆偏层,所述线偏层靠近或/和远离所述圆偏层的一侧设置有光栅结构。
  11. 根据权利要求10所述的显示面板,其中,所述光栅结构的光栅常数为0.08~1.2微米。
  12. 根据权利要求10所述的显示面板,其中,所述偏光片还包括设置于所述线偏层远离所述圆偏层的一侧上的上保护层以及设置于所述线偏层和所述圆偏层之间的下保护层。
  13. 根据权利要求12所述的显示面板,其中,所述光栅结构设置于所述上保护层或/和所述下保护层上。
  14. 根据权利要求13所述的显示面板,其中,所述光栅结构设置于所述上保护层远离所述线偏层的一侧上,或/和所述光栅结构设置于所述下保护层远离所述线偏层的一侧上。
  15. 根据权利要求13所述的显示面板,其中,所述光栅结构设置于所述上保护层靠近所述线偏层的一侧上,或/和所述光栅结构设置于所述下保护层靠近所述线偏层的一侧上。
  16. 根据权利要求13所述的显示面板,其中,所述光栅结构设置于所述上保护层时,所述光栅结构与所述上保护层一体成型;所述光栅结构设置于所述下保护层时,所述光栅结构与所述下保护层一体成型。
  17. 根据权利要求12所述的显示面板,其中,所述上保护层和所述下保护层以及所述光栅结构的制备材料包括光学树脂材料。
  18. 根据权利要求12所述的显示面板,其中,所述偏光片还包括设置于所述圆偏层远离所述线偏层的一侧上的粘结层。
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