WO2016008142A1 - Circular polarizer, liquid crystal display panel and liquid crystal display device - Google Patents
Circular polarizer, liquid crystal display panel and liquid crystal display device Download PDFInfo
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- WO2016008142A1 WO2016008142A1 PCT/CN2014/082423 CN2014082423W WO2016008142A1 WO 2016008142 A1 WO2016008142 A1 WO 2016008142A1 CN 2014082423 W CN2014082423 W CN 2014082423W WO 2016008142 A1 WO2016008142 A1 WO 2016008142A1
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- liquid crystal
- circular polarizer
- crystal display
- polarizer
- display panel
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Classifications
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- 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
Definitions
- Circular polarizer Circular polarizer, liquid crystal display panel and liquid crystal display device
- the present invention relates to the field of liquid crystal display technology, and in particular to a circular polarizer, a liquid crystal display panel, and a liquid crystal display device capable of improving light transmittance. Background technique
- liquid crystal display LCD
- LCD liquid crystal display
- Power, radiation-free and low electromagnetic interference have become the mainstream of the market.
- the liquid crystal display device usually includes a liquid crystal display panel and a backlight module (Black Light Module, BL for short). Since the liquid crystal display panel itself does not have self-illuminating characteristics, the backlight module must be disposed under the liquid crystal display panel to provide a surface light source required for the liquid crystal display panel, such that the liquid crystal display panel can provide a surface light source provided by the backlight module. And the image is displayed.
- BL Black Light Module
- a polarizer is usually attached to the upper surface and the lower surface of the liquid crystal display panel, respectively.
- polarizers are generally classified into two types, one of which is a glossy polarizer and the other of which is a matte polarizer.
- the light transmittance of the two types of polarizers is not high, wherein the light transmittance of the glossy polarizer is generally between 42% and 44%, and the light transmittance of the matte polarizer is generally 41. Between % and 42%.
- the light transmittance of the polarizer will directly affect the display effect of the liquid crystal display panel. This is because the liquid crystal display panel must have a certain brightness when displaying. If the light transmittance of the polarizer is insufficient, the liquid crystal display will be improved.
- the transmittance of the panel or the luminous intensity of the backlight module, etc. will greatly increase the manufacturing cost. Summary of the invention
- an object of the present invention is to provide a circular polarizer, comprising: a linear polarizer having an absorption axis; and at least one first antireflection film disposed on the linear polarizer a lower surface; a quarter-wave plate disposed on a lower surface of the first anti-reflection film and having a slow axis The angle with the absorption axis of the linear polarizer is 45 degrees or 135 degrees.
- the circular polarizer further includes: at least one second anti-reflection film disposed on a lower surface of the quarter-wave plate.
- the circular polarizer further includes: a protective film layer disposed on an upper surface of the linear polarizer.
- the liquid crystal cell includes: a first substrate having an upper surface bonded to the first circular polarizer; a second substrate having a lower surface bonded to the second circular polarizer; and a liquid crystal layer disposed on Between the first substrate and the second substrate.
- Still another object of the present invention is to provide a liquid crystal display device, including a backlight module and a liquid crystal display panel disposed on the backlight module, the backlight module providing a display light source to the liquid crystal display panel, And causing the liquid crystal display panel to display an image, wherein the liquid crystal display panel is the liquid crystal display panel described above.
- the backlight module is a direct type backlight module or a side-in type backlight module.
- the invention improves the light transmittance of the circular polarizer by increasing the antireflection film, thereby improving the display effect of the liquid crystal display panel, thereby further reducing the transmittance of the liquid crystal display panel or the emission of the backlight module.
- FIG. 1 is a schematic structural diagram of a liquid crystal display device according to an embodiment of the present invention
- 2 is a schematic structural view of a circular polarizer according to an embodiment of the present invention
- FIG. 3 is a schematic structural view of a circular polarizer according to another embodiment of the present invention.
- FIG. 1 is a schematic structural view of a liquid crystal display device according to an embodiment of the present invention. Referring to FIG.
- a liquid crystal display device includes a backlight module 10 and a liquid crystal display panel 20 disposed on the backlight module 10 , wherein the backlight module 10 provides a display light source to the liquid crystal display panel 20 , The liquid crystal display panel 20 is caused to display an image.
- the backlight module 10 can be, for example, a side-lit backlight module or a direct-lit backlight module. It should be understood that the structure of the backlight module according to the embodiment of the present invention is well known to those skilled in the art, and is not described herein for the sake of simplicity and clarity.
- the liquid crystal display panel 20 includes a liquid crystal cell 21, a first circular polarizer 22 attached to the upper surface of the liquid crystal cell 21, and a second circular polarizer 23 attached to the lower surface of the liquid crystal cell 21.
- the liquid crystal cell 21 includes a first substrate 211, a second substrate 212, and a liquid crystal layer 213 interposed between the first substrate 211 and the second substrate 212. It should be understood that the liquid crystal cell 21 according to an embodiment of the present invention Other components are also included, which are well known to those skilled in the art, and are not described herein for the sake of simplicity and clarity.
- the first substrate 211 may be, for example, a color filter substrate whose upper surface may be attached to the first circular polarizer 22, for example, by a pressure sensitive adhesive.
- the second substrate 212 may be, for example, a thin film transistor array substrate, and a lower surface thereof may be attached to the second circular polarizer 23, for example, by a pressure sensitive adhesive.
- the liquid crystal layer 213 may include a plurality of liquid crystal molecules.
- the structure of the first circular polarizer 22 and the second circular polarizer 23 will be described in detail below. In the present embodiment, the first circular polarizer 22 and the second circular polarizer 23 have the same structure and function.
- 2 is a schematic structural view of a circular polarizer in accordance with an embodiment of the present invention. It should be understood that the first circular polarizer 22 and the second circular polarizer 23 according to the embodiment of the present invention are both the circular polarizer shown in FIG. 2 or the circular polarizer shown in FIG.
- a circular polarizer according to an embodiment of the present invention includes a linear polarizer 31, a quarter-wave plate 32, and a first anti-reflection film 33.
- the linear polarizer 31 may have an absorption axis that absorbs light parallel to the absorption axis, allowing only light having a direction perpendicular to the absorption axis to pass, so that natural light can be converted into linearly polarized light.
- the quarter-wave plate 32 has a slow axis which is at an angle of 45 degrees or 135 degrees with the absorption axis of the linear polarizer 31.
- the angle between the slow axis of the quarter-wave plate 32 and the absorption axis of the linear polarizer 31 is ⁇ 45 degrees.
- the first anti-reflection film 33 may be disposed on the lower surface of the linear polarizer 31, and the quarter-wave plate 32 may be disposed on the lower surface of the first anti-reflection film 33.
- the first anti-reflection film 33 By providing the first anti-reflection film 33 on the upper surface of the quarter-wave plate 32, the light transmittance of the entire circular polarizer can be increased to increase the intensity of light passing through the circular polarizer. It should be understood that the first anti-reflection film 33 according to the embodiment of the present invention has a superimposing effect, that is, after the plurality of first anti-reflection films 33 are superposed, the light transmittance of the entire circular polarizer can be further increased. Therefore, any number of the first anti-reflection films 33 can be disposed on the lower surface of the line polarizer 31.
- the circular polarizer according to the embodiment of the present invention further includes a protective film layer 34 which is provided on the upper surface of the linear polarizer 31.
- the circular polarizer according to the embodiment of the present invention further includes an adhesive layer 35 which is provided on the lower surface of the 1/4 wave plate 32.
- the binder contained in the adhesive layer 35 may be, for example, a pressure sensitive adhesive, but the invention is not limited thereto.
- the circular polarizer according to an embodiment of the present invention further includes a release film layer 36 disposed on the lower surface of the adhesive layer 35. on. It should be understood that when the circular polarizer is bonded to the liquid crystal cell 21, the release film layer 36 needs to be peeled off, and then the circular polarizer from which the release film layer 36 is peeled off is bonded to the liquid crystal cell 21.
- 3 is a schematic structural view of a circular polarizer according to another embodiment of the present invention. In the description of the circular polarizer of the present embodiment, the same points as those of the circular polarizer shown in Fig.
- the circular polarizer shown in FIG. 3 further includes a second anti-reflection film 37 disposed on the lower surface of the quarter-wave plate 32.
- the first anti-reflection film 33 and the second anti-reflection film 37 are provided on the lower surface of the line polarizer 31 and the lower surface of the quarter-wave plate 32.
- the second anti-reflection film 37 also has a superposition effect, that is, after the plurality of second anti-reflection films 37 are superposed, the light transmittance of the entire circular polarizer can be further increased. Therefore, any number of second anti-reflection films 37 can be disposed on the lower surface of the quarter-wave plate 32.
- the adhesive layer 35 is disposed on the lower surface of the second anti-reflection film 37 to achieve the bonding of the circular polarizer and the liquid crystal cell 21.
- the light transmittance of the circular polarizer is increased by adding an anti-reflection film, thereby improving the display effect of the liquid crystal display panel, thereby further reducing the transmittance of the liquid crystal display panel or
- the luminous intensity of the backlight module and the like greatly reduce the manufacturing cost. While the invention has been shown and described with respect to the specific embodiments of the embodiments of the invention Various changes in details.
Abstract
A circular polarizer, a liquid crystal display panel having the circular polarizer and a liquid crystal display device. The circular polarizer comprises: a linear polarizer (31) having an absorption axis; at least one first anti-reflection membrane (33) arranged on a lower surface of the linear polarizer (31); and a 1/4-wave plate (32) arranged on a lower surface of the first anti-reflection membrane (33), of which the slow axis has an included angle of 45 degrees or 135 degrees with the absorption axis of the linear polarizer (31). The circular polarizer improves the light transmissivity of the circular polarizer by adding an anti-reflection membrane, so as to improve the display effect of a liquid crystal display panel, and then can relatively reduce the penetration rate of the liquid crystal display panel or the luminous intensity of a back light module, etc., thereby significantly reducing the production and manufacturing cost.
Description
说 明 书 圆偏光片、 液晶显示面板及液晶显示装置 技术领域 Description: Circular polarizer, liquid crystal display panel and liquid crystal display device
本发明属于液晶显示技术领域， 具体地讲， 涉及一种能够提高光透过率的 圆偏光片、 液晶显示面板及液晶显示装置。 背景技术 The present invention relates to the field of liquid crystal display technology, and in particular to a circular polarizer, a liquid crystal display panel, and a liquid crystal display device capable of improving light transmittance. Background technique
随着光电与半导体技术的演进， 也带动了平板显示器 （Flat Panel Display) 的蓬勃发展， 而在诸多平板显示器中， 液晶显示装置 （Liquid Crystal Display, 简称 LCD ) 因具有高空间利用效率、 低消耗功率、 无辐射以及低电磁干扰等诸 多优越特性， 已成为市场的主流。 液晶显示装置通常包括液晶显示面板 （Liquid Crystal Panel ) 与背光模块 (Black Light Module, 简称 BL)。 由于液晶显示面板本身并不具备自发光的特 性， 因此必须将背光模组配置在液晶显示面板下方， 以提供液晶显示面板所需 的面光源， 如此液晶显示面板可借由背光模块提供的面光源而显示影像。 为了使液晶显示面板正常地显示画面， 通常在液晶显示面板的上表面和下 表面分别贴附偏光片。 目前所采用的偏光片一般分为两种， 其中一种是光面偏 光片， 另一种是雾面偏光片。 然而， 这两种偏光片的光透过率均不高， 其中， 光面偏光片的光透过率一般在 42%至 44%之间，而雾面偏光片的光透过率一般 在 41%至 42%之间。 偏光片的光透过率将会直接影响液晶显示面板的显示效 果， 这是因为液晶显示面板进行显示时必须要具有一定的亮度， 如果偏光片的 光透过率不足， 就会通过提升液晶显示面板的穿透率或者背光模块的发光强度 等， 这些都将大大增加生产制造成本。 发明内容 With the evolution of optoelectronics and semiconductor technology, the flat panel display has also flourished. Among many flat panel displays, liquid crystal display (LCD) has high space utilization efficiency and low consumption. Power, radiation-free and low electromagnetic interference have become the mainstream of the market. The liquid crystal display device usually includes a liquid crystal display panel and a backlight module (Black Light Module, BL for short). Since the liquid crystal display panel itself does not have self-illuminating characteristics, the backlight module must be disposed under the liquid crystal display panel to provide a surface light source required for the liquid crystal display panel, such that the liquid crystal display panel can provide a surface light source provided by the backlight module. And the image is displayed. In order to allow the liquid crystal display panel to normally display a screen, a polarizer is usually attached to the upper surface and the lower surface of the liquid crystal display panel, respectively. Currently, polarizers are generally classified into two types, one of which is a glossy polarizer and the other of which is a matte polarizer. However, the light transmittance of the two types of polarizers is not high, wherein the light transmittance of the glossy polarizer is generally between 42% and 44%, and the light transmittance of the matte polarizer is generally 41. Between % and 42%. The light transmittance of the polarizer will directly affect the display effect of the liquid crystal display panel. This is because the liquid crystal display panel must have a certain brightness when displaying. If the light transmittance of the polarizer is insufficient, the liquid crystal display will be improved. The transmittance of the panel or the luminous intensity of the backlight module, etc., will greatly increase the manufacturing cost. Summary of the invention
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圆偏光 片， 包括： 线偏光片， 具有一吸收轴； 至少一第一增透膜片， 设置于所述线偏 光片的下表面上； 1/4波片， 设置于所述第一增透膜片的下表面上， 且其慢轴
与所述线偏光片的吸收轴的夹角为 45度或 135度。 进一步地， 所述圆偏光片还包括: 至少一第二增透膜片， 设置于所述 1/4 波片的下表面上。 进一步地， 所述圆偏光片还包括： 保护膜层， 设置于所述线偏光片的上表 面上。 进一步地， 所述圆偏光片还包括: 粘结剂层， 设置于所述 1/4波片的下表 面上。 进一步地， 所述圆偏光片还包括： 粘结剂层， 设置于所述第二增透膜片的 下表面上。 进一步地， 所述圆偏光片还包括： 离型膜层， 设置于所述粘结剂层的下表 面上。 本发明的另一目的还在于提供一种液晶显示面板， 包括液晶盒、 贴合于所 述液晶盒的上表面上的第一圆偏光片及贴合于所述液晶盒的下表面上的第二 圆偏光片，其中，所述第一圆偏光片和所述第二圆偏光片均为上述的圆偏光片。 进一步地， 所述液晶盒包括： 第一基板， 其上表面与所述第一圆偏光片贴 合； 第二基板， 其下表面与所述第二圆偏光片贴合； 液晶层， 设置于所述第一 基板与所述第二基板之间。 本发明的又一目的又在于提供一种液晶显示装置， 包括背光模组及设置于 所述背光模组之上的液晶显示面板， 所述背光模组向所述液晶显示面板提供显 示光源， 以使所述液晶显示面板显示影像， 其中， 所述液晶显示面板为上述的 液晶显示面板。 进一步地， 所述背光模组为直下式背光模组或侧入式背光模组。 本发明通过增加增透膜片来提高圆偏光片的光透过率， 从而提升液晶显示 面板的显示效果，进而可以相对降低液晶显示面板的穿透率或者背光模块的发
附图说明 In order to solve the above problems in the prior art, an object of the present invention is to provide a circular polarizer, comprising: a linear polarizer having an absorption axis; and at least one first antireflection film disposed on the linear polarizer a lower surface; a quarter-wave plate disposed on a lower surface of the first anti-reflection film and having a slow axis The angle with the absorption axis of the linear polarizer is 45 degrees or 135 degrees. Further, the circular polarizer further includes: at least one second anti-reflection film disposed on a lower surface of the quarter-wave plate. Further, the circular polarizer further includes: a protective film layer disposed on an upper surface of the linear polarizer. Further, the circular polarizer further includes: an adhesive layer disposed on a lower surface of the 1/4 wave plate. Further, the circular polarizer further includes: an adhesive layer disposed on a lower surface of the second antireflection film. Further, the circular polarizer further comprises: a release film layer disposed on a lower surface of the adhesive layer. Another object of the present invention is to provide a liquid crystal display panel including a liquid crystal cell, a first circular polarizer attached to the upper surface of the liquid crystal cell, and a surface attached to the lower surface of the liquid crystal cell The second circular polarizer, wherein the first circular polarizer and the second circular polarizer are both the circular polarizers described above. Further, the liquid crystal cell includes: a first substrate having an upper surface bonded to the first circular polarizer; a second substrate having a lower surface bonded to the second circular polarizer; and a liquid crystal layer disposed on Between the first substrate and the second substrate. Still another object of the present invention is to provide a liquid crystal display device, including a backlight module and a liquid crystal display panel disposed on the backlight module, the backlight module providing a display light source to the liquid crystal display panel, And causing the liquid crystal display panel to display an image, wherein the liquid crystal display panel is the liquid crystal display panel described above. Further, the backlight module is a direct type backlight module or a side-in type backlight module. The invention improves the light transmittance of the circular polarizer by increasing the antireflection film, thereby improving the display effect of the liquid crystal display panel, thereby further reducing the transmittance of the liquid crystal display panel or the emission of the backlight module. DRAWINGS
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液晶显示装置的结构示意图； 图 2是根据本发明的实施例的圆偏光片的结构示意图； 图 3是根据本发明的另一实施例的圆偏光片的结构示意图。 具体实施方式 The above and other aspects, features, and advantages of the embodiments of the present invention will become more apparent from the aspects of the accompanying drawings in which: FIG. 1 is a schematic structural diagram of a liquid crystal display device according to an embodiment of the present invention; 2 is a schematic structural view of a circular polarizer according to an embodiment of the present invention; and FIG. 3 is a schematic structural view of a circular polarizer according to another embodiment of the present invention. detailed description
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， 相同的标号将始终被用于表示相同的元件。 将理解的是， 尽管 在这里可使用术语 "第一"、 "第二"等来描述各种元件， 但是这些元件不应受 这些术语的限制。 这些术语仅用于将一个元件与另一个元件区分开来。 图 1是根据本发明的实施例的液晶显示装置的结构示意图。 请参照图 1，根据本发明的实施例的液晶显示装置包括背光模组 10及设置 于背光模组 10之上的液晶显示面板 20，其中，背光模组 10提供显示光源给液 晶显示面板 20， 以使液晶显示面板 20显示影像。 在本实施例中， 背光模组 10 可例如是侧入式背光模组或直下式背光模组。 应当理解的是， 根据本发明的实 施例的背光模组的结构是本领域的技术人员所熟知的， 为了简单清晰， 在此不 再赘述。 液晶显示面板 20包括液晶盒 21、贴合于该液晶盒 21的上表面上的第一圆 偏光片 22及贴合于该液晶盒 21的下表面上的第二圆偏光片 23。 液晶盒 21包括第一基板 211、第二基板 212及夹设于第一基板 211和第二 基板 212之间的液晶层 213。 应当理解的是， 根据本发明的实施例的液晶盒 21
还包括其他部件， 这些部件均是本领域的技术人员所熟知的， 为了简单清晰， 在此不再赘述。 第一基板 211可例如是彩色滤光片基板， 其上表面可例如通过压敏胶与第 一圆偏光片 22贴合。 第二基板 212可例如是薄膜晶体管阵列基板， 其下表面 可例如通过压敏胶与第二圆偏光片 23贴合。液晶层 213可包括若干液晶分子。 以下将对第一圆偏光片 22和第二圆偏光片 23的结构进行详细地描述。在 本实施例中， 第一圆偏光片 22和第二圆偏光片 23具有相同的结构和功能。图 2是根据本发明的实施例的圆偏光片的结构示意图。 应当理解， 根据本发明实 施例的第一圆偏光片 22和第二圆偏光片 23均为图 2所示的圆偏光片或图 3所 示的圆偏光片。 请参照图 2， 根据本发明的实施例的圆偏光片包括线偏光片 31、 1/4波片 32及第一增透膜片 33。 线偏光片 31可具有一吸收轴， 该吸收轴吸收方向与该吸收轴平行的光， 只允许方向与该吸收轴垂直的光通过， 这样可以将自然光转变成线偏振光。 Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the invention may be embodied in many different forms and the invention should not be construed as being limited to the specific embodiments set forth herein. Rather, these embodiments are provided to explain the principles of the invention and the application of the embodiments of the invention, and the various embodiments thereof In the figures, the same reference numerals will be used throughout the drawings. It will be understood that, although the terms "first", "second", and the like may be used herein to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish one element from another. 1 is a schematic structural view of a liquid crystal display device according to an embodiment of the present invention. Referring to FIG. 1 , a liquid crystal display device according to an embodiment of the present invention includes a backlight module 10 and a liquid crystal display panel 20 disposed on the backlight module 10 , wherein the backlight module 10 provides a display light source to the liquid crystal display panel 20 , The liquid crystal display panel 20 is caused to display an image. In this embodiment, the backlight module 10 can be, for example, a side-lit backlight module or a direct-lit backlight module. It should be understood that the structure of the backlight module according to the embodiment of the present invention is well known to those skilled in the art, and is not described herein for the sake of simplicity and clarity. The liquid crystal display panel 20 includes a liquid crystal cell 21, a first circular polarizer 22 attached to the upper surface of the liquid crystal cell 21, and a second circular polarizer 23 attached to the lower surface of the liquid crystal cell 21. The liquid crystal cell 21 includes a first substrate 211, a second substrate 212, and a liquid crystal layer 213 interposed between the first substrate 211 and the second substrate 212. It should be understood that the liquid crystal cell 21 according to an embodiment of the present invention Other components are also included, which are well known to those skilled in the art, and are not described herein for the sake of simplicity and clarity. The first substrate 211 may be, for example, a color filter substrate whose upper surface may be attached to the first circular polarizer 22, for example, by a pressure sensitive adhesive. The second substrate 212 may be, for example, a thin film transistor array substrate, and a lower surface thereof may be attached to the second circular polarizer 23, for example, by a pressure sensitive adhesive. The liquid crystal layer 213 may include a plurality of liquid crystal molecules. The structure of the first circular polarizer 22 and the second circular polarizer 23 will be described in detail below. In the present embodiment, the first circular polarizer 22 and the second circular polarizer 23 have the same structure and function. 2 is a schematic structural view of a circular polarizer in accordance with an embodiment of the present invention. It should be understood that the first circular polarizer 22 and the second circular polarizer 23 according to the embodiment of the present invention are both the circular polarizer shown in FIG. 2 or the circular polarizer shown in FIG. Referring to FIG. 2, a circular polarizer according to an embodiment of the present invention includes a linear polarizer 31, a quarter-wave plate 32, and a first anti-reflection film 33. The linear polarizer 31 may have an absorption axis that absorbs light parallel to the absorption axis, allowing only light having a direction perpendicular to the absorption axis to pass, so that natural light can be converted into linearly polarized light.
1/4波片 32具有一慢轴， 该慢轴与线偏光片 31的吸收轴的夹角为 45度或 135度。换句话说， 1/4波片 32的慢轴与线偏光片 31的吸收轴的夹角为 ±45度。 这样， 当自然光依次通过 1/4波片 32和线偏光片 31之后，可转变成圆偏振光。 第一增透膜片 33可设置于线偏光片 31的下表面上， 1/4波片 32可设置于 第一增透膜片 33的下表面上。 通过在 1/4波片 32的上表面上设置第一增透膜 片 33，可以增加整个圆偏光片的光透过率，以使通过圆偏光片的光的强度增大。 应当理解的是， 根据本发明的实施例的第一增透膜片 33具有叠加效果， 即多 张第一增透膜片 33叠加后， 可以进一步地增加整个圆偏光片的光透过率， 因 此可以在线偏光片 31的下表面上设置任意数量的第一增透膜片 33。 此外， 在本实施例中， 为了保护线偏光片 31， 避免其损伤， 根据本发明的 实施例的圆偏光片还包括保护膜层 34， 其设置于线偏光片 31的上表面上。 另外， 为了实现圆偏光片与液晶盒 21的贴合， 根据本发明的实施例的圆 偏光片还包括粘结剂层 35， 其设置于 1/4波片 32的下表面上。 在本实施例中，
粘结剂层 35所包含的粘结剂可例如是压敏胶， 但本发明并不限制于此。 为了 对粘结剂层 35进行保护， 避免其受到污染， 导致粘结力下降， 根据本发明的 实施例的圆偏光片还包括离型膜层 36， 其设置于粘结剂层 35的下表面上。 应 当理解的是， 在圆偏光片与液晶盒 21贴合时， 需要将离型膜层 36进行剥离， 而后将剥离掉离型膜层 36的圆偏光片与液晶盒 21贴合。 图 3是根据本发明的另一实施例的圆偏光片的结构示意图。 在本实施例的圆偏光片的描述中， 与图 2所示的圆偏光片相同之处在此不 再赘述， 只描述与图 2所示的圆偏光片的不同之处。 请参照图 3， 与图 2所示 的圆偏光片不同的是， 图 3所示的圆偏光片还包括第二增透膜片 37，其设置于 1/4波片 32的下表面上。 通过在线偏光片 31的下表面上和 1/4波片 32的下表 面上分别设置第一增透膜片 33和第二增透膜片 37， 可以进一步地增加整个圆 偏光片的光透过率，以使通过圆偏光片的光的强度进一步增大。应当理解的是， 根据本发明的实施例的第二增透膜片 37亦具有叠加效果， 即多张第二增透膜 片 37叠加后， 可以进一步地增加整个圆偏光片的光透过率， 因此可以在 1/4 波片 32的下表面上设置任意数量的第二增透膜片 37。 对应的， 粘结剂层 35设置于第二增透膜片 37的下表面上， 以实现圆偏光 片与液晶盒 21的贴合。 综上所述， 根据本发明的实施例， 通过增加增透膜片来提高圆偏光片的光 透过率， 从而提升液晶显示面板的显示效果， 进而可以相对降低液晶显示面板 的穿透率或者背光模块的发光强度等， 大大减少生产制造成本。 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。
The quarter-wave plate 32 has a slow axis which is at an angle of 45 degrees or 135 degrees with the absorption axis of the linear polarizer 31. In other words, the angle between the slow axis of the quarter-wave plate 32 and the absorption axis of the linear polarizer 31 is ±45 degrees. Thus, when the natural light passes through the 1/4 wave plate 32 and the linear polarizer 31 in order, it can be converted into circularly polarized light. The first anti-reflection film 33 may be disposed on the lower surface of the linear polarizer 31, and the quarter-wave plate 32 may be disposed on the lower surface of the first anti-reflection film 33. By providing the first anti-reflection film 33 on the upper surface of the quarter-wave plate 32, the light transmittance of the entire circular polarizer can be increased to increase the intensity of light passing through the circular polarizer. It should be understood that the first anti-reflection film 33 according to the embodiment of the present invention has a superimposing effect, that is, after the plurality of first anti-reflection films 33 are superposed, the light transmittance of the entire circular polarizer can be further increased. Therefore, any number of the first anti-reflection films 33 can be disposed on the lower surface of the line polarizer 31. Further, in the present embodiment, in order to protect the linear polarizer 31 from damage, the circular polarizer according to the embodiment of the present invention further includes a protective film layer 34 which is provided on the upper surface of the linear polarizer 31. In addition, in order to achieve the bonding of the circular polarizer and the liquid crystal cell 21, the circular polarizer according to the embodiment of the present invention further includes an adhesive layer 35 which is provided on the lower surface of the 1/4 wave plate 32. In this embodiment, The binder contained in the adhesive layer 35 may be, for example, a pressure sensitive adhesive, but the invention is not limited thereto. In order to protect the adhesive layer 35 from contamination, resulting in a decrease in adhesion, the circular polarizer according to an embodiment of the present invention further includes a release film layer 36 disposed on the lower surface of the adhesive layer 35. on. It should be understood that when the circular polarizer is bonded to the liquid crystal cell 21, the release film layer 36 needs to be peeled off, and then the circular polarizer from which the release film layer 36 is peeled off is bonded to the liquid crystal cell 21. 3 is a schematic structural view of a circular polarizer according to another embodiment of the present invention. In the description of the circular polarizer of the present embodiment, the same points as those of the circular polarizer shown in Fig. 2 will not be described again, and only the differences from the circular polarizer shown in Fig. 2 will be described. Referring to FIG. 3, unlike the circular polarizer shown in FIG. 2, the circular polarizer shown in FIG. 3 further includes a second anti-reflection film 37 disposed on the lower surface of the quarter-wave plate 32. By providing the first anti-reflection film 33 and the second anti-reflection film 37 on the lower surface of the line polarizer 31 and the lower surface of the quarter-wave plate 32, the light transmission of the entire circular polarizer can be further increased. The rate is such that the intensity of light passing through the circular polarizer is further increased. It should be understood that the second anti-reflection film 37 according to the embodiment of the present invention also has a superposition effect, that is, after the plurality of second anti-reflection films 37 are superposed, the light transmittance of the entire circular polarizer can be further increased. Therefore, any number of second anti-reflection films 37 can be disposed on the lower surface of the quarter-wave plate 32. Correspondingly, the adhesive layer 35 is disposed on the lower surface of the second anti-reflection film 37 to achieve the bonding of the circular polarizer and the liquid crystal cell 21. In summary, according to the embodiment of the present invention, the light transmittance of the circular polarizer is increased by adding an anti-reflection film, thereby improving the display effect of the liquid crystal display panel, thereby further reducing the transmittance of the liquid crystal display panel or The luminous intensity of the backlight module and the like greatly reduce the manufacturing cost. While the invention has been shown and described with respect to the specific embodiments of the embodiments of the invention Various changes in details.
Claims
1、 一种圆偏光片， 包括: 线偏光片， 具有一吸收轴； 至少一第一增透膜片， 设置于所述线偏光片的下表面上； A circular polarizer, comprising: a linear polarizer having an absorption axis; at least one first antireflection film disposed on a lower surface of the linear polarizer;
1/4波片， 设置于所述第一增透膜片的下表面上， 且其慢轴与所述线偏光 片的吸收轴的夹角为 45度或 135度。 A quarter-wave plate is disposed on the lower surface of the first anti-reflection film, and an angle between the slow axis and the absorption axis of the linear polarizer is 45 degrees or 135 degrees.
2、 根据权利要求 1所述的圆偏光片， 其中， 所述圆偏光片还包括： 至少一第二增透膜片， 设置于所述 1/4波片的下表面上。 2. The circular polarizer according to claim 1, wherein the circular polarizer further comprises: at least one second anti-reflection film disposed on a lower surface of the quarter-wave plate.
3、 根据权利要求 1所述的圆偏光片， 其中， 所述圆偏光片还包括： 保护 膜层， 设置于所述线偏光片的上表面上。 The circular polarizer according to claim 1, wherein the circular polarizer further comprises: a protective film layer disposed on an upper surface of the linear polarizer.
4、 根据权利要求 2所述的圆偏光片， 其中， 所述圆偏光片还包括： 保护 膜层， 设置于所述线偏光片的上表面上。 The circular polarizer according to claim 2, wherein the circular polarizer further comprises: a protective film layer disposed on an upper surface of the linear polarizer.
5、 根据权利要求 1所述的圆偏光片， 其中， 所述圆偏光片还包括： 粘结 剂层， 设置于所述 1/4波片的下表面上。 The circular polarizer according to claim 1, wherein the circular polarizer further comprises: an adhesive layer disposed on a lower surface of the 1/4 wave plate.
6、 根据权利要求 2所述的圆偏光片， 其中， 所述圆偏光片还包括： 粘结 剂层， 设置于所述第二增透膜片的下表面上。 The circular polarizer according to claim 2, wherein the circular polarizer further comprises: an adhesive layer disposed on a lower surface of the second antireflection film.
7、 根据权利要求 5所述的圆偏光片， 其中， 所述圆偏光片还包括： 离型 膜层， 设置于所述粘结剂层的下表面上。 The circular polarizer according to claim 5, wherein the circular polarizer further comprises: a release film layer disposed on a lower surface of the adhesive layer.
8、 根据权利要求 6所述的圆偏光片， 其中， 所述圆偏光片还包括： 离型 膜层， 设置于所述粘结剂层的下表面上。 The circular polarizer according to claim 6, wherein the circular polarizer further comprises: a release film layer disposed on a lower surface of the adhesive layer.
9、 一种液晶显示面板， 包括液晶盒、 贴合于所述液晶盒的上表面上的第 一圆偏光片及贴合于所述液晶盒的下表面上的第二圆偏光片， 其中， 所述第一 圆偏光片和所述第二圆偏光片均包括：
线偏光片， 具有一吸收轴； 至少一第一增透膜片， 设置于所述线偏光片的下表面上； A liquid crystal display panel comprising a liquid crystal cell, a first circular polarizer attached to an upper surface of the liquid crystal cell, and a second circular polarizer attached to a lower surface of the liquid crystal cell, wherein The first circular polarizer and the second circular polarizer each include: a linear polarizer having an absorption axis; at least one first antireflection film disposed on a lower surface of the linear polarizer;
1/4波片， 设置于所述第一增透膜片的下表面上， 且其慢轴与所述线偏光 片的吸收轴的夹角为 45度或 135度。 A quarter-wave plate is disposed on the lower surface of the first anti-reflection film, and an angle between the slow axis and the absorption axis of the linear polarizer is 45 degrees or 135 degrees.
10、 根据权利要求 9所述的液晶显示面板， 其中， 所述圆偏光片还包括： 至少一第二增透膜片， 设置于所述 1/4波片的下表面上。 The liquid crystal display panel according to claim 9, wherein the circular polarizer further comprises: at least one second anti-reflection film disposed on a lower surface of the quarter-wave plate.
11、 根据权利要求 9所述的液晶显示面板， 其中， 所述圆偏光片还包括： 保护膜层， 设置于所述线偏光片的上表面上。 The liquid crystal display panel according to claim 9, wherein the circular polarizer further comprises: a protective film layer disposed on an upper surface of the linear polarizer.
12、 根据权利要求 10所述的液晶显示面板， 其中， 所述圆偏光片还包括： 保护膜层， 设置于所述线偏光片的上表面上。 The liquid crystal display panel according to claim 10, wherein the circular polarizer further comprises: a protective film layer disposed on an upper surface of the linear polarizer.
13、 根据权利要求 9所述的液晶显示面板， 其中， 所述圆偏光片还包括： 粘结剂层， 设置于所述 1/4波片的下表面上。 The liquid crystal display panel according to claim 9, wherein the circular polarizer further comprises: an adhesive layer disposed on a lower surface of the 1/4 wave plate.
14、 根据权利要求 10所述的液晶显示面板， 其中， 所述圆偏光片还包括： 粘结剂层， 设置于所述第二增透膜片的下表面上。 The liquid crystal display panel according to claim 10, wherein the circular polarizer further comprises: an adhesive layer disposed on a lower surface of the second antireflection film.
15、 一种液晶显示装置， 包括背光模组及设置于所述背光模组之上的液晶 显示面板， 所述背光模组向所述液晶显示面板提供显示光源， 以使所述液晶显 示面板显示影像， 所述液晶显示面板包括液晶盒、 贴合于所述液晶盒的上表面 上的第一圆偏光片及贴合于所述液晶盒的下表面上的第二圆偏光片， 其中， 所 述第一圆偏光片和所述第二圆偏光片均包括： 线偏光片， 具有一吸收轴； 至少一第一增透膜片， 设置于所述线偏光片的下表面上； A liquid crystal display device, comprising: a backlight module and a liquid crystal display panel disposed on the backlight module, wherein the backlight module provides a display light source to the liquid crystal display panel, so that the liquid crystal display panel displays The liquid crystal display panel includes a liquid crystal cell, a first circular polarizer attached to an upper surface of the liquid crystal cell, and a second circular polarizer attached to a lower surface of the liquid crystal cell, wherein The first circular polarizer and the second circular polarizer each include: a linear polarizer having an absorption axis; and at least one first antireflection film disposed on a lower surface of the linear polarizer;
1/4波片， 设置于所述第一增透膜片的下表面上， 且其慢轴与所述线偏光 片的吸收轴的夹角为 45度或 135度。 A quarter-wave plate is disposed on the lower surface of the first anti-reflection film, and an angle between the slow axis and the absorption axis of the linear polarizer is 45 degrees or 135 degrees.
16、 根据权利要求 15所述的液晶显示装置， 其中， 所述圆偏光片还包括：
至少一第二增透膜片， 设置于所述 1/4波片的下表面上。 The liquid crystal display device according to claim 15, wherein the circular polarizer further comprises: At least one second anti-reflection film is disposed on the lower surface of the quarter-wave plate.
17、 根据权利要求 15所述的液晶显示装置， 其中， 所述圆偏光片还包括: 保护膜层， 设置于所述线偏光片的上表面上。 The liquid crystal display device according to claim 15, wherein the circular polarizer further comprises: a protective film layer disposed on an upper surface of the linear polarizer.
18、 根据权利要求 16所述的液晶显示装置， 其中， 所述圆偏光片还包括: 保护膜层， 设置于所述线偏光片的上表面上。 The liquid crystal display device according to claim 16, wherein the circular polarizer further comprises: a protective film layer disposed on an upper surface of the linear polarizer.
19、 根据权利要求 15所述的液晶显示装置， 其中， 所述圆偏光片还包括: 粘结剂层， 设置于所述 1/4波片的下表面上。 The liquid crystal display device according to claim 15, wherein the circular polarizer further comprises: an adhesive layer disposed on a lower surface of the quarter-wave plate.
20、 根据权利要求 16所述的液晶显示装置， 其中， 所述圆偏光片还包括: 粘结剂层， 设置于所述第二增透膜片的下表面上。
The liquid crystal display device according to claim 16, wherein the circular polarizer further comprises: an adhesive layer disposed on a lower surface of the second antireflection film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/377,983 US9217892B1 (en) | 2014-07-17 | 2014-07-17 | Circular polarizer, liquid crystal panel and the liquid crystal device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410337401.6 | 2014-07-15 | ||
| CN201410337401.6A CN104062802A (en) | 2014-07-15 | 2014-07-15 | Round polaroid, liquid crystal display panel and liquid crystal display device |
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| Publication Number | Publication Date |
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| WO2016008142A1 true WO2016008142A1 (en) | 2016-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/CN2014/082423 WO2016008142A1 (en) | 2014-07-15 | 2014-07-17 | Circular polarizer, liquid crystal display panel and liquid crystal display device |
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| Country | Link |
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| CN (1) | CN104062802A (en) |
| WO (1) | WO2016008142A1 (en) |
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| TWI580995B (en) * | 2014-12-30 | 2017-05-01 | 財團法人工業技術研究院 | Anti-ambient-light-reflection film |
| CN106324886A (en) * | 2015-06-22 | 2017-01-11 | 上海冠显光电科技有限公司 | Display module visible in sunlight |
| CN107910354A (en) * | 2017-11-24 | 2018-04-13 | 信利光电股份有限公司 | A kind of flexibility touch-control display module and electronic display unit |
| CN111950335B (en) * | 2019-05-17 | 2023-07-21 | 荣耀终端有限公司 | Laminated structure, display panel and electronic device |
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| CN1953238A (en) * | 2006-11-28 | 2007-04-25 | 友达光电股份有限公司 | An electroluminescence display |
| US20080252815A1 (en) * | 2007-04-13 | 2008-10-16 | Wintek Corporation | Polarization structure and liquid crystal display device having the same |
| US20100053524A1 (en) * | 2008-08-29 | 2010-03-04 | Su Chang An | Display device |
| CN202747156U (en) * | 2012-08-29 | 2013-02-20 | 京东方科技集团股份有限公司 | Backlight module and liquid crystal display device |
| CN203607414U (en) * | 2013-11-12 | 2014-05-21 | 宸鸿光电科技股份有限公司 | Lighting display device |
| CN203607413U (en) * | 2013-11-12 | 2014-05-21 | 宸鸿光电科技股份有限公司 | Lighting display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090161044A1 (en) * | 2007-12-21 | 2009-06-25 | Zhibing Ge | Wide viewing angle circular polarizers |
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- 2014-07-15 CN CN201410337401.6A patent/CN104062802A/en active Pending
- 2014-07-17 WO PCT/CN2014/082423 patent/WO2016008142A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1953238A (en) * | 2006-11-28 | 2007-04-25 | 友达光电股份有限公司 | An electroluminescence display |
| US20080252815A1 (en) * | 2007-04-13 | 2008-10-16 | Wintek Corporation | Polarization structure and liquid crystal display device having the same |
| US20100053524A1 (en) * | 2008-08-29 | 2010-03-04 | Su Chang An | Display device |
| CN202747156U (en) * | 2012-08-29 | 2013-02-20 | 京东方科技集团股份有限公司 | Backlight module and liquid crystal display device |
| CN203607414U (en) * | 2013-11-12 | 2014-05-21 | 宸鸿光电科技股份有限公司 | Lighting display device |
| CN203607413U (en) * | 2013-11-12 | 2014-05-21 | 宸鸿光电科技股份有限公司 | Lighting display device |
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| CN104062802A (en) | 2014-09-24 |
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