WO2018064855A1 - 圆偏光片、液晶显示器和电子装置 - Google Patents

圆偏光片、液晶显示器和电子装置 Download PDF

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Publication number
WO2018064855A1
WO2018064855A1 PCT/CN2016/106916 CN2016106916W WO2018064855A1 WO 2018064855 A1 WO2018064855 A1 WO 2018064855A1 CN 2016106916 W CN2016106916 W CN 2016106916W WO 2018064855 A1 WO2018064855 A1 WO 2018064855A1
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Prior art keywords
protrusion
liquid crystal
protective layer
wave plate
polarizer
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English (en)
French (fr)
Inventor
潘彪
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Priority to US15/322,505 priority Critical patent/US10302991B2/en
Publication of WO2018064855A1 publication Critical patent/WO2018064855A1/zh
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • 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
    • G02F1/133528—Polarisers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00634—Production of filters
    • B29D11/00644—Production of filters polarizing
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/201—Filters in the form of arrays
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
    • G02B30/25—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type using polarisation techniques
    • 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
    • G02F1/133528—Polarisers
    • G02F1/133538—Polarisers with spatial distribution of the polarisation direction
    • 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
    • G02F1/133528—Polarisers
    • G02F1/133541—Circular polarisers
    • 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
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • G02F1/133638—Waveplates, i.e. plates with a retardation value of lambda/n
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/50—Protective arrangements

Definitions

  • the present invention relates to the field of display technology, and in particular to a circular polarizer, a liquid crystal display, and an electronic device.
  • liquid crystal displays are of a backlight type, which includes a liquid crystal panel and a backlight module.
  • the backlight module provides a light source to the liquid crystal panel to display images normally.
  • a circular polarizer is usually attached to the upper surface and the lower surface of the liquid crystal panel, respectively.
  • the circular polarizer can be obtained by superimposing a quarter-wave plate on the line polarizer.
  • a phase delay occurs.
  • ⁇ n ⁇ d ⁇ /4 (where d is the thickness of the 1/4 wave plate, ⁇ n is the birefringence of the 1/4 wave plate, and ⁇ is the incident Light wavelength); the light emitted by the liquid crystal panel is circularly polarized light. Since the change of ⁇ n is not proportional to the change of ⁇ , for the visible light of different wavelengths, the same 1/4 wave plate will not be circularly polarized, which will cause the problem of the dominant role of the big view.
  • Another object of the present invention is to provide an electronic device using the above liquid crystal display.
  • the present invention provides a circular polarizer comprising a stacked quarter-wave plate and a first linear polarizer, the quarter-wave plate including a plurality of raised regions, each of the raised regions including a first protrusion, a second protrusion, and a third protrusion arranged, the first protrusion, the second protrusion, and the third protrusion
  • the thickness of the first protrusion is dR
  • the thickness of the second protrusion is dG
  • the thickness of the third protrusion is dB
  • dR ⁇ R/4 ⁇ nR
  • dG ⁇ G/4 ⁇ nG
  • dB ⁇ B/4 ⁇ nB
  • ⁇ R, ⁇ G, ⁇ B are the wavelengths of red, green and blue light, respectively
  • ⁇ nR, ⁇ nB, ⁇ nB are red, green and blue respectively
  • the side of the first line polarizer adjacent to the 1/4 wave plate is provided with a boss abutting the first protrusion, the second protrusion and the third protrusion.
  • the upper protective layer and the lower protective layer are further disposed, and the upper protective layer, the 1/4 wave plate layer, the first linear polarizer and the lower protective layer are sequentially stacked, and the upper protective layer is adjacent to One side of the quarter-wave plate is provided with a boss that abuts the first protrusion, the second protrusion, and the third protrusion.
  • the upper protective layer is a glass substrate, and the boss is integrally formed with the glass substrate.
  • the upper protective layer, the lower protective layer, the adhesive layer and the separation layer, the upper protective layer, the 1/4 wave plate, the first linear polarizer, the lower protective layer, and the adhesive layer The layer and the separation layer are laminated in this order.
  • the present invention also provides a liquid crystal display comprising a backlight module, a liquid crystal panel and a circular polarizer, the circular polarizer comprising a 1/4 wave plate and a first linear polarizer stacked in a stack, the quarter wave
  • the liquid crystal panel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and the red sub-pixel, the green sub-pixel, and the blue sub-pixel are divided into Corresponding to the first projection, the second projection and said third projection.
  • the liquid crystal panel includes a liquid crystal cell and a second linear polarizer, and the second linear polarizer is attached to a lower surface of the liquid crystal cell, and the circular polarizer is attached to an upper surface of the liquid crystal cell.
  • the angle between the optical axis of the first polarizer and the second polarizer is 90 degrees.
  • the backlight module is a direct type backlight module or a side-in type backlight module.
  • the side of the first line polarizer adjacent to the 1/4 wave plate is provided with a boss abutting the first protrusion, the second protrusion and the third protrusion.
  • the upper protective layer and the lower protective layer are further disposed, and the upper protective layer, the 1/4 wave plate layer, the first linear polarizer and the lower protective layer are sequentially stacked, and the upper protective layer is adjacent to One side of the quarter-wave plate is provided with a boss that abuts the first protrusion, the second protrusion, and the third protrusion.
  • the upper protective layer is a glass substrate, and the boss is integrally formed with the glass substrate.
  • the upper protective layer, the lower protective layer, the adhesive layer and the separation layer, the upper protective layer, the 1/4 wave plate, the first linear polarizer, the lower protective layer, and the adhesive layer The layer and the separation layer are laminated in this order.
  • the present invention provides an electronic device including a liquid crystal display including a backlight module, a liquid crystal panel, and a circular polarizer, the circular polarizer including a stacked quarter-wave plate and a first linear polarizer
  • the liquid crystal panel includes a liquid crystal cell and a second linear polarizer, and the second linear polarizer is attached to a lower surface of the liquid crystal cell, and the circular polarizer is attached to an upper surface of the liquid crystal cell.
  • the angle between the optical axis of the first polarizer and the second polarizer is 90 degrees.
  • the backlight module is a direct type backlight module or a side-in type backlight module.
  • the side of the first line polarizer adjacent to the 1/4 wave plate is provided with a boss abutting the first protrusion, the second protrusion and the third protrusion.
  • the upper protective layer and the lower protective layer are further disposed, and the upper protective layer, the 1/4 wave plate layer, the first linear polarizer and the lower protective layer are sequentially stacked, and the upper protective layer is adjacent to One side of the quarter-wave plate is provided with a boss that abuts the first protrusion, the second protrusion, and the third protrusion.
  • the upper protective layer is a glass substrate, and the boss is integrally formed with the glass substrate.
  • the first line polarizer and the 1/4 wave plate are superimposed, and the 1/4 wave plate is provided with a first protrusion and a second corresponding to the red light, the green light and the blue light.
  • the liquid crystal display and the electronic device provided by the invention can improve the biasing effect of the large-vision characters of different colors and improve the display effect.
  • FIG. 1 is a schematic structural view of a circular polarizer according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a circular polarizer according to another embodiment of the present invention.
  • FIG. 3 is a liquid crystal display according to an embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a circular polarizer according to an embodiment of the present invention.
  • the circular polarizer 100 mainly includes a quarter-wave plate 11 and a first linear polarizer 12 which are stacked and disposed.
  • the 1/4 wave plate 11 includes a plurality of raised regions (not numbered). Each of the raised regions corresponds to one pixel on the color filter substrate on the liquid crystal cell. Each of the raised regions includes a first protrusion 111 that is sequentially arranged,
  • the second protrusion 112 and the third protrusion 113 correspond to red sub-pixels on the color filter substrate of the liquid crystal panel for transmitting red light.
  • the second protrusion 112 corresponds to a green sub-pixel on the color filter substrate for transmitting green light.
  • the third protrusion 113 corresponds to a blue sub-pixel on the color filter substrate for transmitting blue light.
  • the thicknesses of the first protrusions 111, the second protrusions 112, and the third protrusions 113 i.e., the lengths of the surfaces of the vertical quarter-wave plates 11) are different. And meet the following relationship:
  • d R ⁇ R / 4 ⁇ n R ;
  • ⁇ R , ⁇ G , and ⁇ B are wavelengths of red, green, and blue light, respectively, and ⁇ n R , ⁇ n B , and ⁇ n B are respectively pairs of red, green, and blue light in the 1/4 wave plate. Refractive index.
  • the phase difference of the vibration vector of the red, green and blue light after passing through the circular polarizer is exactly 90°, and the red, green and blue light are all formed by circularly polarized light. .
  • the color shift problem of the large viewing angle can be eliminated, and the display effect is improved.
  • the first line polarizer and the 1/4 wave plate are superimposed, and the 1/4 wave plate is provided with a first protrusion and a second corresponding to the red light, the green light and the blue light.
  • the circular polarizer 100 further includes an upper protective layer 13 and a lower protective layer 14 .
  • the upper protective layer 13, the quarter-wave plate 11, the first linear polarizer 12, and the lower protective layer 14 are sequentially stacked.
  • a side of the first line polarizer 12 adjacent to the 1/4 wave plate 11 is provided with a protrusion that abuts the first protrusion 111, the second protrusion 112, and the third protrusion 113 Taiwan 17.
  • the boss 17 and the first A projection 111, a second projection 112 and a third projection 113 are complementary in the thickness direction such that the circular polarizer 100 is a flat plane.
  • the circular polarizer 100 further includes an adhesive layer 15 and a separation layer 16, and the adhesive layer 15 bonds the separation layer 16 and the lower protective layer 14.
  • the separation layer 16 is for attaching to the color On the film substrate.
  • FIG. 2 is a schematic structural diagram of a circular polarizer according to another embodiment of the present invention. The difference between this embodiment and the above embodiment is:
  • the first linear polarizer 12 ′ is planar, and the upper protective layer 13 is disposed adjacent to the 1/4 wave plate and is provided with the first protrusion 111 and the second The boss 131 abuts the protrusion 112 and the third protrusion 113.
  • a boss 131 that abuts the first protrusion 111, the second protrusion 112, and the third protrusion 113 is disposed on the upper protective layer 13, the boss 131 and the first A projection 111, a second projection 112 and a third projection 113 are complementary in the thickness direction such that the circular polarizer 200 is a substantially flat plane.
  • the upper protective layer 13 is a glass substrate, and the boss 131 is integrally formed with the glass substrate.
  • Table 1 shows the values of ⁇ n and d of ⁇ corresponding to red (R), green (G) and blue (B) and corresponding 1/4 wave plates in a specific embodiment of the present invention. :
  • the first protrusion, the second protrusion, and the third protrusion on the quarter-wave plate may be determined according to the material characteristics of the quarter-wave plate used (ie, ⁇ n) and the magnitude of the three main color wavelengths (ie, ⁇ ) of RGB. Thickness d.
  • the specific thickness of the circular polarizer proposed in the present invention may be determined by the material of the 1/4 wave plate and the type of the material of the color filter substrate and the arrangement of the pixels, as described above by ⁇ n, ⁇ , and d.
  • the relationship derivation is not limited to the data listed in the above table.
  • FIG. 3 is a liquid crystal display according to an embodiment of the present invention.
  • the liquid crystal display 200 includes a backlight module 21, a liquid crystal panel 22, and a circular polarizer 30.
  • the circular polarizer 30 is a circular polarizer of any of the above embodiments.
  • the backlight module 21 and the liquid crystal panel 22 are stacked.
  • the backlight module 21 is configured to provide a light source for the liquid crystal panel 22 to display a pattern.
  • the backlight module 21 can be a direct type backlight module or a side-in type backlight module.
  • the circular polarizer 30 is attached to a side of the liquid crystal panel 22 away from the backlight module 21.
  • the liquid crystal panel 22 includes a liquid crystal cell 221 and a second linear polarizer 222.
  • the liquid crystal cell 221 includes a color filter substrate 225, an array substrate 226, and a liquid crystal layer 227 interposed therebetween.
  • the second linear polarizer 222 is attached to the array substrate 226 (ie, the lower surface of the liquid crystal cell 221), and the second linear polarizer 222 functions as a polarizing.
  • the circular polarizer 30 is attached to the color filter substrate 225 (i.e., the upper surface of the liquid crystal cell 221). It can be understood that the angle between the second linear polarizer 222 and the optical axis of the first linear polarizer in the circular polarizer 30 is 90 degrees.
  • the separation layer of the circular polarizer 30 is attached to the color filter substrate 225.
  • the color filter substrate 225 includes a plurality of pixels (not shown), each of which corresponds to a raised area on the circular polarizer 30.
  • Each pixel includes a red sub-pixel (R), a green sub-pixel (G), and a blue sub-pixel (B).
  • the red sub-pixel, the green sub-pixel, and the blue sub-pixel respectively correspond to the first protrusion, the second protrusion, and the third protrusion on the circular polarizer 30.
  • the emitted light of different colors is circularly polarized light, which can effectively improve the phenomenon of large-view character deviation of different colors and improve the display effect.
  • the present invention also provides an electronic device using the liquid crystal display 200 described above.
  • the electronic device can be, but is not limited to, any electronic device having a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
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Abstract

一种圆偏光片(100)，包括层叠设置的1/4波片(11)和第一线偏光片(12)，该1/4波片(11)包括多个凸起区域，每个凸起区域包括依次排布的第一凸起(111)、第二凸起(112)和第三凸起(113)，该第一凸起(111)、该第二凸起(112)和该第三凸起(113)分别用于透过红光、绿光和蓝光，该第一凸起(111)的厚度为d R、该第二凸起(112)的厚度为d G、该第三凸起(113)的厚度为d B，则有d R＝λ R/4Δn R，d G＝λ G/4Δn G，d B＝λ B/4Δn B；其中，λ R、λ G、λ B分别为红光、绿光和蓝光的波长，Δn R、Δn B、Δn B分别为红光、绿光和蓝光在该1/4波片(11)中的双折射率。液晶显示器(200)和电子装置能够改善不同颜色的大视角色偏作用，提升显示效果。

Description

圆偏光片、液晶显示器和电子装置
本发明要求2016年10月8日递交的发明名称为“圆偏光片、液晶显示器和电子装置”的申请号201610877431.5的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及显示技术领域，特别是指一种圆偏光片、液晶显示器和电子装置。
背景技术
现有的液晶显示器(LiquidCrystalDisplay，LCD)大部分为背光型，其包括液晶面板和背光模组(Backlight module)，背光模组提供光源给液晶面板来正常显示影像。为使得液晶面板出射的光线为圆偏振光，通常在液晶面板的上表面和下表面分别贴附圆偏光片。
现有技术中，圆偏光片可以通过在线偏光片的叠加一层1/4波片的方式得到，当线偏光片出射的线偏振光经过1/4波片后会产生相位延迟。当1/4波片的光学效能Δn×d满足：Δn×d＝λ/4时(其中d为1/4波片的厚度，△n为1/4波片的双折射率，λ为入射光波长)；液晶面板出射的光线为圆偏振光。由于Δn的变化与λ的变化不成比例关系，因此对于不同波长的可见光，经过同一片1/4波片，不会都是圆偏光，这就会带来大视角色偏等问题。
发明内容
本发明的目的在于提供一种圆偏光片及液晶显示器，能够改善不同颜色光线的色偏问题，提升显示效果。
本发明的另一目的在于提供采用上述液晶显示器的电子装置。
为了实现上述目的，本发明实施方式提供如下技术方案：
本发明提供一种圆偏光片，其中，包括层叠设置的1/4波片和第一线偏光片，所述1/4波片包括多个凸起区域，每个所述凸起区域包括依次排布的第一凸起、第二凸起和第三凸起，所述第一凸起、所述第二凸起和所述第三凸起分 别用于透过红光、绿光和蓝光，所述第一凸起的厚度为dR、所述第二凸起的厚度为dG、所述第三凸起的厚度为dB，则有dR＝λR/4ΔnR，dG＝λG/4ΔnG，dB＝λB/4ΔnB；其中，λR、λG、λB分别为红光、绿光和蓝光的波长，ΔnR、ΔnB、ΔnB分别为红光、绿光和蓝光在所述1/4波片中的双折射率。
其中，所述第一线偏光片靠近所述1/4波片的一侧设置有与所述第一凸起、所述第二凸起和所述第三凸起相抵接的凸台。
其中，还包括上保护层和下保护层，所述上保护层、所述1/4波片层、所述第一线偏光片和所述下保护层依次层叠设置，所述上保护层靠近所述1/4波片的一侧设置有与所述第一凸起、第二凸起和第三凸起相抵接的凸台。
其中，所述上保护层为玻璃基板，所述凸台与所述玻璃基板一体成型。
其中，还包括上保护层、下保护层、粘合层和分离层，所述上保护层、所述1/4波片、所述第一线偏光片、所述下保护层、所述粘合层和所述分离层依次层叠设置。
本发明还提供一种液晶显示器，其中，包括背光模组、液晶面板和圆偏光片，所述圆偏光片包括层叠设置的1/4波片和第一线偏光片，所述1/4波片包括多个凸起区域，每个所述凸起区域包括依次排布的第一凸起、第二凸起和第三凸起，所述第一凸起、所述第二凸起和所述第三凸起分别用于透过红光、绿光和蓝光，所述第一凸起的厚度为dR、所述第二凸起的厚度为dG、所述第三凸起的厚度为dB，则有dR＝λR/4ΔnR，dG＝λG/4ΔnG，dB＝λB/4ΔnB；其中，λR、λG、λB分别为红光、绿光和蓝光的波长，ΔnR、ΔnB、ΔnB分别为红光、绿光和蓝光在所述1/4波片中的双折射率，所述背光模组与所述液晶面板层叠设置，所述圆偏光片贴附在所述液晶面板远离所述背光模组的一侧，所述液晶面板包括红子像素、绿子像素和蓝子像素，所述红子像素、所述绿子像素和所述蓝子像素分别对应所述第一凸起、所述第二凸起和所述第三凸起。
其中，所述液晶面板包括液晶盒和第二线偏光片，所述第二线偏光片贴附于所述液晶盒下表面，所述圆偏光片贴附于所述液晶盒上表面。
其中，所述第一偏光片和所述第二偏光片光轴的夹角为90度。
其中，所述背光模组为直下式背光模组或侧入式背光模组。
其中，所述第一线偏光片靠近所述1/4波片的一侧设置有与所述第一凸起、所述第二凸起和所述第三凸起相抵接的凸台。
其中，还包括上保护层和下保护层，所述上保护层、所述1/4波片层、所述第一线偏光片和所述下保护层依次层叠设置，所述上保护层靠近所述1/4波片的一侧设置有与所述第一凸起、所述第二凸起和所述第三凸起相抵接的凸台。
其中，所述上保护层为玻璃基板，所述凸台与所述玻璃基板一体成型。
其中，还包括上保护层、下保护层、粘合层和分离层，所述上保护层、所述1/4波片、所述第一线偏光片、所述下保护层、所述粘合层和所述分离层依次层叠设置。
本发明提供一种电子装置，其中，包括液晶显示器，所述液晶显示器包括背光模组、液晶面板和圆偏光片，所述圆偏光片包括层叠设置的1/4波片和第一线偏光片，所述1/4波片包括多个凸起区域，每个所述凸起区域包括依次排布的第一凸起、第二凸起和第三凸起，所述第一凸起、所述第二凸起和所述第三凸起分别用于透过红光、绿光和蓝光，所述第一凸起的厚度为dR、所述第二凸起的厚度为dG、所述第三凸起的厚度为dB，则有dR＝λR/4ΔnR，dG＝λG/4ΔnG，dB＝λB/4ΔnB；其中，λR、λG、λB分别为红光、绿光和蓝光的波长，ΔnR、ΔnB、ΔnB分别为红光、绿光和蓝光在所述1/4波片中的双折射率，所述背光模组与所述液晶面板层叠设置，所述圆偏光片贴附在所述液晶面板远离所述背光模组的一侧，所述液晶面板包括红子像素、绿子像素和蓝子像素，所述红子像素、所述绿子像素和所述蓝子像素分别对应所述第一凸起、所述第二凸起和所述第三凸起。
其中，所述液晶面板包括液晶盒和第二线偏光片，所述第二线偏光片贴附于所述液晶盒下表面，所述圆偏光片贴附于所述液晶盒上表面。
其中，所述第一偏光片和所述第二偏光片光轴的夹角为90度。
其中，所述背光模组为直下式背光模组或侧入式背光模组。
其中，所述第一线偏光片靠近所述1/4波片的一侧设置有与所述第一凸起、所述第二凸起和所述第三凸起相抵接的凸台。
其中，还包括上保护层和下保护层，所述上保护层、所述1/4波片层、所述第一线偏光片和所述下保护层依次层叠设置，所述上保护层靠近所述1/4波片的一侧设置有与所述第一凸起、所述第二凸起和所述第三凸起相抵接的凸台。
其中，所述上保护层为玻璃基板，所述凸台与所述玻璃基板一体成型。
本发明实施例具有如下优点或有益效果：
本发明的圆偏光片中，通过第一线偏光片和1/4波片叠加而成，1/4波片上设置有与红光、绿光和蓝光一一对应的第一凸起、第二凸起和第三凸起，所述第一凸起的厚度dR满足：dR＝λR/4ΔnR；所述第二凸起的厚度dG满足：dG＝λG/4ΔnG；所述第三凸起的厚度dB满足：dB＝λB/4ΔnB，从而使得不同颜色的光线通过圆偏光片后形成的都是圆偏振光，进而改善不同颜色的大视角色偏现象，提升了显示效果。本发明提供的液晶显示器和电子装置能够改善不同颜色的大视角色偏作用，提升显示效果。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明一种实施方式提供的圆偏光片的结构示意图。
图2为本发明另一种实施方式提供的圆偏光片的结构示意图。
图3为本发明实施一种实施方式提供的液晶显示器。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1，图1为本发明一种实施方式提供的圆偏光片的结构示意图。圆偏光片100主要包括：层叠设置的1/4波片11和第一线偏光片12。所述1/4波片11包括多个凸起区域(图未编号)。每个所述凸起区域各对应于液晶盒上的彩膜基板上的一个像素。每个所述凸起区域包括依次排布的第一凸起111、 第二凸起112和第三凸起113，所述第一凸起111对应于液晶面板的彩膜基板上的红子像素，用于透过红光。所述第二凸起112对应于彩膜基板上的绿子像素，用于透过绿光。所述第三凸起113对应于彩膜基板上的蓝子像素，用于透过蓝光。所述第一凸起111、所述第二凸起112和所述第三凸起113的厚度(即垂直1/4波片11表面的长度)各不相同。并且满足如下关系：
所述第一凸起的厚度dR满足：dR＝λR/4ΔnR；
所述第二凸起的厚度dG满足：dG＝λG/4ΔnG；
所述第三凸起的厚度dB满足：dB＝λB/4ΔnB；
其中，λR、λG、λB分别为红光、绿光和蓝光的波长，ΔnR、ΔnB、ΔnB分别为红光、绿光和蓝光在所述1/4波片中的双折射率。
可以理解的是，当满足上述关系时，红光、绿光和蓝光通过所述圆偏光片后振动矢量的位相差刚好为90°，红光、绿光和蓝光所形成的均为圆偏振光。此时，可以消除大视角的色偏问题，改善了显示的效果。
本发明的圆偏光片中，通过第一线偏光片和1/4波片叠加而成，1/4波片上设置有与红光、绿光和蓝光一一对应的第一凸起、第二凸起和第三凸起，所述第一凸起的厚度dR满足：dR＝λR/4ΔnR；所述第二凸起的厚度dG满足：dG＝λG/4ΔnG；所述第三凸起的厚度dB满足：dB＝λB/4ΔnB，从而使得不同颜色的光线通过圆偏光片后形成的都是圆偏振光，进而改善不同颜色的大视角色偏现象，改善了显示效果。
请继续参阅图1，本发明一种具体的实施方式中，所述圆偏光片100还包括上保护层13和下保护层14。所述上保护层13、所述1/4波片11、所述第一线偏光片12和所述下保护层14依次层叠设置。所述第一线偏光片12靠近所述1/4波片11的一侧设置有与所述第一凸起111、所述第二凸起112和所述第三凸起113相抵接的凸台17。通过在所述第一线偏光片12上设置与所述第一凸起111、第二凸起112和第三凸起113相抵接的凸台17，所述凸台17与所述所述第一凸起111、第二凸起112和第三凸起113在厚度方向上互补，使得圆偏光片100为一平整的平面。
进一步的，所述圆偏光片100还包括粘合层15和分离层16，所述粘合层15粘接所述分离层16和所述下保护层14。所述分离层16用于贴附于所述彩 膜基板上。
请参阅图2，图2为本发明另一种实施方式提供的圆偏光片的结构示意图。本实施例与上述实施例的区别点在于：
圆偏光片100’中，所述第一线偏光片12’为平面状，所述上保护层13靠近所述1/4波片的一侧设置有与所述第一凸起111、第二凸起112和第三凸起113相抵接的凸台131。
本实施方式中通过在所述上保护层13上设置与所述第一凸起111、第二凸起112和第三凸起113相抵接的凸台131，所述凸台131与所述第一凸起111、第二凸起112和第三凸起113在厚度方向上互补，使得圆偏光片200为一大致平整的平面。
优选的，所述上保护层13为玻璃基板，所述凸台131与所述玻璃基板一体成型。
请参阅表1，表1为本发明一个具体的实施方式中的红光(R)、绿光(G)和蓝光(B)对应的λ及相应的1/4波片的Δn和d的数值：
表1
  Δn λ/nm d/um
R 0.0981 633 1.61
G 0.1011 546 1.35
B 0.1083 450 1.04
可以根据所使用的1/4波片的材料特性(即Δn)和RGB三种颜色主波长(即λ)的大小确定1/4波片上第一凸起、第二凸起和第三凸起厚度d。
需要指出的是本发明中提出的圆偏光片的具体的厚度可以根据实际的1/4波片的材质和彩膜基板的材料的种类以及像素的排布情况，由上述Δn、λ和d的关系推导而得到，并不局限于上表所列举出的数据。
请参阅图3，图3为本发明实施一种实施方式提供的液晶显示器。液晶显示器200，包括背光模组21、液晶面板22和圆偏光片30。所述圆偏光片30为上述任意一种实施方式的圆偏光片。所述背光模组21与所述液晶面板22层叠设置。所述背光模组21用于为所述液晶面板22提供光源，以显示图案。 具体的，所述背光模组21可以为直下式背光模组或侧入式背光模组。
所述圆偏光片30贴附在所述液晶面板22远离所述背光模组21的一侧。
具体的，所述液晶面板22包括液晶盒221和第二线偏光片222。所述液晶盒221包括彩膜基板225、阵列基板226及夹设于二者之间的液晶层227。所述第二线偏光片222贴附于阵列基板226上(即所述液晶盒221的下表面)，所述第二线偏光片222起到起偏的作用。所述圆偏光片30贴附于彩膜基板225上(即所述液晶盒221上表面)。可以理解的是，所述第二线偏光片222与所述圆偏光片30中的第一线偏光片的光轴的夹角为90度。
具体的，所述圆偏光片30的分离层贴附于所述彩膜基板225上。所述彩膜基板225包括多个像素(图未示出)，每个像素各与所述圆偏光片30上的一个凸起区域对应。每个像素包括红子像素(R)、绿子像素(G)和蓝子像素(B)。所述红子像素、所述绿子像素和所述蓝子像素分别对应圆偏光片30上的所述第一凸起、所述第二凸起和所述第三凸起。
本发明的液晶显示器中背光模组发出的光源经液晶面板和源偏光片后，不同颜色的出射光线均为圆偏振光，可以有效改善不同颜色的大视角色偏现象，改善了显示效果。
本发明还提供一种电子装置，该电子装置采用上述的液晶显示器200。所述电子装置可以但不限为手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的电子装置。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述的实施方式，并不构成对该技术方案保护范围的限定。任何在上述实施方式的精神和原则之内所作的修改、等同替换和改进等，均应包含在该技术方案的保护范围之内。

Claims (20)

  1. 一种圆偏光片，其中，包括层叠设置的1/4波片和第一线偏光片，所述1/4波片包括多个凸起区域，每个所述凸起区域包括依次排布的第一凸起、第二凸起和第三凸起，所述第一凸起、所述第二凸起和所述第三凸起分别用于透过红光、绿光和蓝光，所述第一凸起的厚度为dR、所述第二凸起的厚度为dG、所述第三凸起的厚度为dB，则有dR＝λR/4ΔnR，dG＝λG/4ΔnG，dB＝λB/4ΔnB；其中，λR、λG、λB分别为红光、绿光和蓝光的波长，ΔnR、ΔnB、ΔnB分别为红光、绿光和蓝光在所述1/4波片中的双折射率。
  2. 如权利要求1所述的圆偏光片，其中，所述第一线偏光片靠近所述1/4波片的一侧设置有与所述第一凸起、所述第二凸起和所述第三凸起相抵接的凸台。
  3. 如权利要求1所述的圆偏光片，其中，还包括上保护层和下保护层，所述上保护层、所述1/4波片层、所述第一线偏光片和所述下保护层依次层叠设置，所述上保护层靠近所述1/4波片的一侧设置有与所述第一凸起、所述第二凸起和所述第三凸起相抵接的凸台。
  4. 如权利要求3所述的圆偏光片，其中，所述上保护层为玻璃基板，所述凸台与所述玻璃基板一体成型。
  5. 如权利要求1所述的圆偏光片，其中，还包括上保护层、下保护层、粘合层和分离层，所述上保护层、所述1/4波片、所述第一线偏光片、所述下保护层、所述粘合层和所述分离层依次层叠设置。
  6. 一种液晶显示器，其中，包括背光模组、液晶面板和圆偏光片，所述圆偏光片包括层叠设置的1/4波片和第一线偏光片，所述1/4波片包括多个凸起区域，每个所述凸起区域包括依次排布的第一凸起、第二凸起和第三凸起，所述第一凸起、所述第二凸起和所述第三凸起分别用于透过红光、绿光和蓝光， 所述第一凸起的厚度为dR、所述第二凸起的厚度为dG、所述第三凸起的厚度为dB，则有dR＝λR/4ΔnR，dG＝λG/4ΔnG，dB＝λB/4ΔnB；其中，λR、λG、λB分别为红光、绿光和蓝光的波长，ΔnR、ΔnB、ΔnB分别为红光、绿光和蓝光在所述1/4波片中的双折射率，所述背光模组与所述液晶面板层叠设置，所述圆偏光片贴附在所述液晶面板远离所述背光模组的一侧，所述液晶面板包括红子像素、绿子像素和蓝子像素，所述红子像素、所述绿子像素和所述蓝子像素分别对应所述第一凸起、所述第二凸起和所述第三凸起。
  7. 如权利要求6所述的液晶显示器，其中，所述液晶面板包括液晶盒和第二线偏光片，所述第二线偏光片贴附于所述液晶盒下表面，所述圆偏光片贴附于所述液晶盒上表面。
  8. 如权利要求6所述的液晶显示器，其中，所述第一偏光片和所述第二偏光片光轴的夹角为90度。
  9. 如权利要求6所述的液晶显示器，其中，所述背光模组为直下式背光模组或侧入式背光模组。
  10. 如权利要求6所述的液晶显示器，其中，所述第一线偏光片靠近所述1/4波片的一侧设置有与所述第一凸起、所述第二凸起和所述第三凸起相抵接的凸台。
  11. 如权利要求6所述的液晶显示器，其中，还包括上保护层和下保护层，所述上保护层、所述1/4波片层、所述第一线偏光片和所述下保护层依次层叠设置，所述上保护层靠近所述1/4波片的一侧设置有与所述第一凸起、所述第二凸起和所述第三凸起相抵接的凸台。
  12. 如权利要求11所述的液晶显示器，其中，所述上保护层为玻璃基板，所述凸台与所述玻璃基板一体成型。
  13. 如权利要求6所述的液晶显示器，其中，还包括上保护层、下保护 层、粘合层和分离层，所述上保护层、所述1/4波片、所述第一线偏光片、所述下保护层、所述粘合层和所述分离层依次层叠设置。
  14. 一种电子装置，其中，包括液晶显示器，所述液晶显示器包括背光模组、液晶面板和圆偏光片，所述圆偏光片包括层叠设置的1/4波片和第一线偏光片，所述1/4波片包括多个凸起区域，每个所述凸起区域包括依次排布的第一凸起、第二凸起和第三凸起，所述第一凸起、所述第二凸起和所述第三凸起分别用于透过红光、绿光和蓝光，所述第一凸起的厚度为dR、所述第二凸起的厚度为dG、所述第三凸起的厚度为dB，则有dR＝λR/4ΔnR，dG＝λG/4ΔnG，dB＝λB/4ΔnB；其中，λR、λG、λB分别为红光、绿光和蓝光的波长，ΔnR、ΔnB、ΔnB分别为红光、绿光和蓝光在所述1/4波片中的双折射率，所述背光模组与所述液晶面板层叠设置，所述圆偏光片贴附在所述液晶面板远离所述背光模组的一侧，所述液晶面板包括红子像素、绿子像素和蓝子像素，所述红子像素、所述绿子像素和所述蓝子像素分别对应所述第一凸起、所述第二凸起和所述第三凸起。
  15. 如权利要求14所述的电子装置，其中，所述液晶面板包括液晶盒和第二线偏光片，所述第二线偏光片贴附于所述液晶盒下表面，所述圆偏光片贴附于所述液晶盒上表面。
  16. 如权利要求14所述的电子装置，其中，所述第一偏光片和所述第二偏光片光轴的夹角为90度。
  17. 如权利要求14所述的电子装置，其中，所述背光模组为直下式背光模组或侧入式背光模组。
  18. 如权利要求14所述的电子装置，其中，所述第一线偏光片靠近所述1/4波片的一侧设置有与所述第一凸起、所述第二凸起和所述第三凸起相抵接的凸台。
  19. 如权利要求14所述的电子装置，其中，还包括上保护层和下保护层， 所述上保护层、所述1/4波片层、所述第一线偏光片和所述下保护层依次层叠设置，所述上保护层靠近所述1/4波片的一侧设置有与所述第一凸起、所述第二凸起和所述第三凸起相抵接的凸台。
  20. 如权利要求19所述的电子装置，其中，所述上保护层为玻璃基板，所述凸台与所述玻璃基板一体成型。
PCT/CN2016/106916 2016-10-08 2016-11-23 圆偏光片、液晶显示器和电子装置 Ceased WO2018064855A1 (zh)

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