TWI613471B - Polarizer assembly and display apparatus - Google Patents

Polarizer assembly and display apparatus Download PDF

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Publication number
TWI613471B
TWI613471B TW105142481A TW105142481A TWI613471B TW I613471 B TWI613471 B TW I613471B TW 105142481 A TW105142481 A TW 105142481A TW 105142481 A TW105142481 A TW 105142481A TW I613471 B TWI613471 B TW I613471B
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polarizing plate
plate assembly
protective layer
polarizing
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TW105142481A
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Chinese (zh)
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TW201823777A (en
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梁輝鴻
蔡清評
藍英哲
張慶宇
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住華科技股份有限公司
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Priority to CN201710370552.5A priority patent/CN107167859B/en
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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
    • G02B5/3016—Polarising elements involving passive liquid crystal elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes

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

Abstract

一種偏光板組件，包括：一偏光基體；一保護層，位於偏光基體的一側；一表面保護膜，位於保護層相對於偏光基體的另一側；另一保護層，位於偏光基體相對於保護層的另一側；以及一黏著劑層，位於另一保護層相對於偏光基體的另一側。其中，偏光板組件更包括一吸收材料，其於波長570-600nm間的穿透頻譜比波長450nm間的穿透頻譜低10%以上，且比波長650nm間的穿透頻譜低15%以上。A polarizing plate assembly includes: a polarizing substrate; a protective layer on one side of the polarizing substrate; a surface protective film on the other side of the protective layer relative to the polarizing substrate; and another protective layer on the polarizing substrate relative to the protection The other side of the layer; and an adhesive layer on the other side of the other protective layer relative to the polarizing substrate. Among them, the polarizing plate assembly further includes an absorbing material, whose transmission spectrum at a wavelength of 570-600nm is more than 10% lower than the transmission spectrum at a wavelength of 450nm, and more than 15% lower than the transmission spectrum at a wavelength of 650nm.

Description

偏光板組件以及顯示裝置Polarizing plate assembly and display device

本發明係關於一種偏光板組件，尤指一種廣色域偏光板組件。本發明另關於一種使用此種偏光板組件的顯示裝置。The invention relates to a polarizing plate assembly, in particular to a wide-color-gamut polarizing plate assembly. The invention also relates to a display device using such a polarizing plate assembly.

偏光板或偏光片(polarizer)是一種可使一般不具偏極性的自然光轉變成朝特定方向偏振的偏極光，或者僅限特定方向偏振光通過的光學元件，例如與偏光板方向一致的平行光可通過，但與偏光板方向正交的垂直光則會被遮蔽無法透過，如此可篩選控制通過偏光板後的光偏極性。偏光板或偏光片的應用範圍廣泛，包括相機鏡頭、顯微鏡、3D立體眼鏡、太陽眼鏡、顯示面板等等，因應所欲達成目的與功效的不同，偏光板的組成與材料也會有所差異。A polarizer or polarizer is an optical element that can convert natural light that is generally not polarized into polarized light that is polarized in a specific direction, or that passes only polarized light in a specific direction. For example, parallel light that is in the same direction as the polarizer can Pass, but the vertical light orthogonal to the direction of the polarizing plate will be blocked and cannot be transmitted. In this way, the polarization of the light after passing through the polarizing plate can be controlled. Polarizers or polarizers have a wide range of applications, including camera lenses, microscopes, 3D stereo glasses, sunglasses, display panels, and so on. Depending on the purpose and efficacy desired, the composition and materials of polarizers will vary.

隨著科技的發展和人們對於顯示產品色彩效果的與日俱增的要求，液晶顯示面板也朝著提升色域(color gamut)的方向發展，亦即增加使人眼所能識別出的顏色，色域愈廣代表的是人眼可辨識的顏色覆蓋率愈高，因此廣色域也成為顯示面板顯示品質的一種指標。With the development of science and technology and people's increasing requirements for the color effect of display products, liquid crystal display panels have also developed in the direction of improving the color gamut, that is, increasing the color that can be recognized by the human eye. Wide represents the higher the color coverage that can be recognized by the human eye, so the wide color gamut has also become an indicator of the display quality of the display panel.

習知技術中用以提升面板色域的方法是利用背光膜材中內含的量子點膜材(quantum dot film)，以藍光LED激發量子點膜材產生窄頻寬的激發光源，而形成廣色域的光學表現。然而，由於一般量子點膜材含鎘(Cd)，具有毒性，會對環境造成傷害，因此如何在廣色域的顯示技術需求與無毒環保的世界潮流間取得平衡，甚至雙贏，是業界仍在努力的目標之一。The method used to improve the color gamut of the panel in the conventional technology is to use a quantum dot film included in the backlight film to excite the quantum dot film with a blue LED to generate a narrow-band excitation light source to form a wide-band Optical performance of color gamut. However, because the general quantum dot film contains cadmium (Cd), it is toxic and harms the environment. Therefore, how to strike a balance between the demand for display technology with wide color gamut and the world trend of non-toxic and environmental protection, even a win-win situation is still in the industry. One of the goals of the effort.

因此，謀求從顯示面板結構本身進行改良以提升色域，例如提供廣色域偏光板，不啻為解決習知技術所面臨問題的可行方向。Therefore, it is sought to improve the color gamut from the display panel structure itself, such as providing a wide color gamut polarizing plate, which is a feasible direction for solving the problems faced by the conventional technology.

因此，本發明目的在於提供一種偏光板組件，其可應用於一光學元件中，達到廣色域的表現。Therefore, an object of the present invention is to provide a polarizing plate assembly which can be applied to an optical element to achieve a wide color gamut performance.

本發明提供一種偏光板組件，包括：一偏光基體；一保護層，位於偏光基體的一側；一表面保護膜，位於保護層相對於偏光基體的另一側；另一保護層，位於偏光基體相對於保護層的另一側；以及一黏著劑層，位於另一保護層相對於偏光基體的另一側。其中，偏光板組件更包括一吸收材料，其於波長570-600nm間的穿透頻譜比波長450nm間的穿透頻譜低10%以上，且比波長650nm間的穿透頻譜低15%以上。The invention provides a polarizing plate assembly, comprising: a polarizing substrate; a protective layer on one side of the polarizing substrate; a surface protective film on the other side of the protective layer relative to the polarizing substrate; and another protective layer on the polarizing substrate The other side is opposite to the protective layer; and an adhesive layer is located on the other side of the other protective layer with respect to the polarizing substrate. Among them, the polarizing plate assembly further includes an absorbing material, whose transmission spectrum at a wavelength of 570-600nm is more than 10% lower than the transmission spectrum at a wavelength of 450nm, and more than 15% lower than the transmission spectrum at a wavelength of 650nm.

較佳者，吸收材料於波長570-600nm間的穿透頻譜比波長450nm間的穿透頻譜低15%以上，且比波長650nm間的穿透頻譜低20%以上。Preferably, the transmission spectrum of the absorbing material between the wavelengths of 570-600 nm is more than 15% lower than the transmission spectrum of the wavelengths of 450 nm and more than 20% lower than the transmission spectrum of the wavelengths of 650 nm.

在一實施例中，吸收材料摻入於黏著劑層中。In one embodiment, an absorbent material is incorporated in the adhesive layer.

在另一實施例中，吸收材料成膜於黏著劑層與保護層之間。In another embodiment, the absorbing material is formed between the adhesive layer and the protective layer.

本發明的偏光板組件例如可應用於一顯示裝置中，與例如扭轉向列(TN)顯示面板、橫向電場效應(IPS)顯示面板、垂直配向(VA)顯示面板、或OLED顯示面板併用。The polarizing plate assembly of the present invention can be applied to, for example, a display device and used in combination with, for example, a twisted nematic (TN) display panel, a lateral electric field effect (IPS) display panel, a vertical alignment (VA) display panel, or an OLED display panel.

以下，將藉由下列實施例對本發明做更詳細的說明。然而須注意的是，下列關於本發明之較佳實施例的描述僅作為描述與說明之目的，非用以限制本發明。Hereinafter, the present invention will be described in more detail by the following examples. It should be noted, however, that the following description of the preferred embodiments of the present invention is for the purpose of description and illustration only, and is not intended to limit the present invention.

請參閱第1圖，根據本發明的顯示面板11結構包括一彩色濾光片基板(圖未示)與一薄膜電晶體基板(圖未示)夾持一液晶層(圖未示)，液晶層(圖未示)受一外加電場控制而改變液晶構形，以控制通過不同液晶區域的光量；第一光調變元件12，位於顯示面板11的一側，用以於光進入顯示面板之後調整其光學特性；第二光調變元件13，位於顯示面板11的另一側，用以於光進入顯示面板11之前調整其光學特性，例如用以將通過的光(具有任一方向之極化光)轉換成特定方向之偏極光；以及一背光元件14，位於第二光調變元件13的相對於顯示面板11的相反側，用以提供顯示用的背光。Please refer to FIG. 1. The structure of the display panel 11 according to the present invention includes a color filter substrate (not shown) and a thin film transistor substrate (not shown) sandwiching a liquid crystal layer (not shown). (Not shown) the liquid crystal configuration is changed by an external electric field control to control the amount of light passing through different liquid crystal regions; the first light modulation element 12 is located on one side of the display panel 11 and is used for adjustment after light enters the display panel Its optical characteristics; the second light modulation element 13 is located on the other side of the display panel 11 and is used to adjust its optical characteristics before the light enters the display panel 11, for example, to pass the passing light (having polarization in any direction) Light) into polarized light of a specific direction; and a backlight element 14 located on the opposite side of the second light modulation element 13 from the display panel 11 to provide a backlight for display.

為了不使用含毒量子點膜材來達到廣色域目的，本案發明人研發出一種色域增進偏光板(color gamut enhance polarizer)，用於第一光調變元件12及/或第二光調變元件13中，以同時達成偏光與提升色域效果的目的。In order to achieve a wide color gamut without using a toxic quantum dot film, the inventor of the present invention has developed a color gamut enhance polarizer for the first light modulation element 12 and / or the second light modulation The variable element 13 achieves the purpose of polarizing light and improving the color gamut effect at the same time.

色域增進偏光板可由一根據本發明的偏光板組件貼附於顯示面板上而形成。本發明偏光板組件適用於例如扭轉向列(TN)顯示面板、橫向電場效應(IPS)顯示面板、垂直配向(VA)顯示面板、或OLED顯示面板。因此，液晶層可相對應為TN、IPS或VA液晶盒(Cell)。The color gamut enhanced polarizing plate may be formed by attaching a polarizing plate assembly according to the present invention to a display panel. The polarizing plate assembly of the present invention is suitable for, for example, a twisted nematic (TN) display panel, a lateral electric field effect (IPS) display panel, a vertical alignment (VA) display panel, or an OLED display panel. Therefore, the liquid crystal layer may correspond to a TN, IPS, or VA liquid crystal cell (Cell).

第2圖顯示本發明偏光板組件的一實施例剖面示意圖。偏光板組件包括一偏光基體30，用以使光線由非偏極光變成偏極光；一上方保護層31和一下方保護層32，用以支撐保護偏光膜；一表面保護膜33，用以保護偏光膜；一黏著劑層34，用以黏貼偏光膜至顯示面板基板；以及一離型膜35，用以保護黏著劑。使用偏光板組件時將表面保護膜33與離型膜35撕離，並透過黏著劑層34黏貼至顯示面板上。FIG. 2 is a schematic cross-sectional view of an embodiment of a polarizing plate assembly according to the present invention. The polarizing plate assembly includes a polarizing substrate 30 to change light from non-polarized light to polarized light; an upper protective layer 31 and a lower protective layer 32 to support and protect the polarizing film; and a surface protective film 33 to protect the polarized light. A film; an adhesive layer 34 for attaching a polarizing film to a display panel substrate; and a release film 35 for protecting the adhesive. When the polarizing plate assembly is used, the surface protection film 33 and the release film 35 are peeled off and adhered to the display panel through the adhesive layer 34.

在上述實施例中，偏光基體30的材料可為聚乙烯醇(PVA)樹脂膜，其可藉由皂化聚醋酸乙烯樹脂製得。保護層31和32材料例如為聚甲基丙烯酸甲酯(Polymethylmethacrylate，PMMA)、三聚醋酸纖維素(Triacetyl Cellulose，TAC)、丙烯酸樹脂膜、聚芳香羥樹脂膜、聚醚樹脂膜、環聚烯烴樹脂膜(例如聚冰片烯樹脂膜)、聚酯(Polyethylene Terephthalate，PET)、聚丙稀(Polypropylene，PP)、環烯烴聚合物(Cyclo Olefin Polymer，COP)、聚碳酸酯(Polycarbonate，PC)以及上述任意組合所組成的一族群；表面保護膜33材料例如為聚乙烯(PE)、聚對苯二甲酸乙二酯(PET)；離型膜35材料例如為聚乙烯(PE)、聚對苯二甲酸乙二酯(PET)等。上述材料實例僅為舉例之用，熟習此技藝之人士可視實際需求而為適當選用，並不因此影響或限制本發明的實施與保護範圍。In the above embodiment, the material of the polarizing substrate 30 may be a polyvinyl alcohol (PVA) resin film, which may be made by saponifying a polyvinyl acetate resin. The materials of the protective layers 31 and 32 are, for example, polymethylmethacrylate (PMMA), Triacetyl Cellulose (TAC), acrylic resin film, polyaromatic hydroxy resin film, polyether resin film, and cyclic polyolefin. Resin film (such as polynorbornene resin film), polyester (Polyethylene Terephthalate (PET), polypropylene (PP), Cyclo Olefin Polymer (COP), polycarbonate (Polycarbonate, PC) and the above A group consisting of any combination; the material of the surface protection film 33 is polyethylene (PE), polyethylene terephthalate (PET); the material of the release film 35 is polyethylene (PE), polyethylene terephthalate Ethylene formate (PET) and the like. The above examples of materials are for illustration purposes only, and those skilled in the art may make appropriate selections based on actual needs, without affecting or limiting the scope of implementation and protection of the present invention.

在一實施例中，偏光板組件中可包含其它結構類型的光學層，例如可為對光學之增益、配向、補償、轉向、直交、擴散、保護、防黏、耐刮、抗眩、反射抑制、高折射率等有所助益的層，可例如為具有控制視角補償或雙折射（birefraction）等特性的配向液晶層、易接合處理層、硬塗層、抗反射層、防黏層、擴散層、防眩層等各種表面處理層。In one embodiment, the polarizing plate assembly may include other structural types of optical layers, such as optical gain, alignment, compensation, steering, orthogonal, diffusion, protection, anti-sticking, scratch resistance, anti-glare, and reflection suppression. Useful layers such as high refractive index, such as alignment liquid crystal layer with controlled viewing angle compensation or birefraction, etc., easy-to-bond treatment layer, hard coating layer, anti-reflection layer, anti-adhesion layer, diffusion Layer, anti-glare layer and other surface treatment layers.

在本發明的一實施例中，色域增進偏光板22除了上述偏光板組件外，更包含至少一吸收材料，吸收材料之主要吸收波長為560 ~ 610nm，更佳為570-600nm，最佳為580-590 nm。另外，上述吸收材料36例如可為一種染料(dye)、顏料(pigment)、或其他可吸收光波段的材料。In an embodiment of the present invention, the color gamut-enhancing polarizing plate 22 includes, in addition to the above-mentioned polarizing plate assembly, at least one absorbing material, and the main absorption wavelength of the absorbing material is 560 to 610 nm, more preferably 570 to 600 nm, and the most preferable is 580-590 nm. In addition, the absorbing material 36 may be, for example, a dye, a pigment, or another material capable of absorbing a light band.

在一實施例中，吸收材料是與黏著劑層34整合為一含吸收材料的黏著劑層34。其中，吸收材料36可以摻入的型式與黏著劑層34一併形成分布於黏著劑層34中，如第3A圖所示。在一實施例中，吸收材料36以獨立膜層型式提供於黏著劑層34與下方保護層32間，例如先塗佈、噴灑或其它成膜方式形成在下方保護層32表面上，再於其上加上黏著劑層34，如第3B圖所示。另外，除了前述兩方式外，吸收材料36也可摻入或於延伸成膜時摻入至偏光板內之適合的光學膜層中，如保護層31、32或偏光基體30中達到提升色域的效果。當摻入黏著劑層34或其他光學膜層中時，其濃度範圍(或重量百分比)在0.1%~5.0%之間，較佳為0.1%~1.0%之間。若為獨立膜層型式，其厚度範圍在0.1um~5um之間，較佳為0.1um~1um之間。In one embodiment, the absorbing material is integrated with the adhesive layer 34 to form an absorbing material-containing adhesive layer 34. Wherein, the absorption material 36 may be incorporated into the adhesive layer 34 and distributed together with the adhesive layer 34, as shown in FIG. 3A. In one embodiment, the absorbing material 36 is provided between the adhesive layer 34 and the lower protective layer 32 as an independent film layer. For example, the absorbent material 36 is formed on the surface of the lower protective layer 32 by coating, spraying, or other film forming methods, and then An adhesive layer 34 is applied as shown in FIG. 3B. In addition to the two methods described above, the absorbing material 36 can also be incorporated into a suitable optical film layer in the polarizing plate when it is stretched into a film, such as the protective layer 31, 32 or the polarizing substrate 30 to achieve an improved color gamut. Effect. When incorporated into the adhesive layer 34 or other optical film layers, its concentration range (or weight percentage) is between 0.1% and 5.0%, preferably between 0.1% and 1.0%. If it is an independent film type, its thickness ranges between 0.1um ~ 5um, preferably between 0.1um ~ 1um.

另外，上述黏著劑層34的組成主要包括但不限於：(A)主劑、(B)架橋劑及(C)矽烷偶合劑，下面將對各組成進行說明。In addition, the composition of the above-mentioned adhesive layer 34 mainly includes, but is not limited to: (A) a main agent, (B) a bridging agent, and (C) a silane coupling agent. Each composition will be described below.

(A) 主劑 ：主劑包含至少一種（甲基）丙烯酸酯，於後文中，（甲基）丙烯酸酯意指丙烯酸酯或甲基丙烯酸酯之任一種，其餘出現的「（甲基）」含意亦可以此類推。（甲基）丙烯酸酯例如可選擇自：（甲基）丙烯酸甲酯、（甲基）丙烯酸乙酯、（甲基）丙烯酸丙酯、（甲基）丙烯酸正丁酯、（甲基）丙烯酸正辛酯、（甲基）丙烯酸十一烷酯等之直鏈狀（甲基）丙烯酸烷酯；或是例如可選擇自：（甲基）丙烯酸異丁酯、（甲基）丙烯酸2-乙基己酯、（甲基）丙烯酸異辛酯等之支鏈狀（甲基）丙烯酸烷酯；或是例如可選擇自：（甲基）丙烯酸2-甲氧基乙酯、（甲基）丙烯酸乙氧基甲酯等有烷氧基取代之（甲基）丙烯酸烷酯。另外，（甲基）丙烯酸酯可含有芳基，例如（甲基）丙烯酸苄酯等；或者（甲基）丙烯酸酯可含有芳氧基，例如（甲基）丙烯酸2-苯氧基乙酯、（甲基）丙烯酸2-(2-苯氧基乙氧基)乙酯、環氧乙烷改質之壬基酚之（甲基）丙烯酸酯、（甲基）丙烯酸2-(鄰-苯基苯氧基)乙酯等。完成固化乾燥後的交聯（甲基）丙烯酸酯為黏著層的主要成分及架構。 (A) Main agent : The main agent contains at least one (meth) acrylate. In the following, (meth) acrylate means any one of acrylate or methacrylate, and the remaining "(meth)" The meaning can also be deduced by analogy. The (meth) acrylate may be selected from, for example, methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, n-butyl (meth) acrylate, or n- (meth) acrylate Linear alkyl (meth) acrylates such as octyl ester, undecyl (meth) acrylate; or, for example, selected from: isobutyl (meth) acrylate, 2-ethyl (meth) acrylate Hexyl ester, isooctyl (meth) acrylate, etc., branched alkyl (meth) acrylate; or, for example, can be selected from: 2-methoxyethyl (meth) acrylate, ethyl (meth) acrylate (Meth) acrylic acid-substituted alkyl (meth) acrylates such as oxymethyl esters. In addition, the (meth) acrylate may contain an aryl group, such as benzyl (meth) acrylate, etc .; or the (meth) acrylate may contain an aryloxy group, such as 2-phenoxyethyl (meth) acrylate, 2- (2-phenoxyethoxy) ethyl (meth) acrylate, (meth) acrylate of nonylphenol modified by ethylene oxide, 2- (o-phenyl) (meth) acrylate Phenoxy) ethyl ester and the like. After curing and drying, the cross-linked (meth) acrylate is the main component and structure of the adhesive layer.

在一實施例中，主劑可以包含以下配方比例：丙烯酸丁酯(BA) 40~90重量份、丙烯酸甲酯(MA) 10~40重量份、丙烯酸(AA) 1重量份以下、丙烯酸2-羥基乙酯(HEA) 5重量份以下、丙烯酸2-甲氧基乙酯(MEA) 5重量份以下、丙烯酸2-苯氧基乙酯(PEA) 4~10重量份。在一實施例中，主劑的平均分子量介於120~170萬之間，Mw/Mn介於3.5~5之間。In one embodiment, the main agent may include the following formulation ratios: 40 to 90 parts by weight of butyl acrylate (BA), 10 to 40 parts by weight of methyl acrylate (MA), 1 part by weight or less of acrylic acid (AA), and acrylic acid 2- 5 parts by weight or less of hydroxyethyl ester (HEA), 5 parts by weight or less of 2-methoxyethyl acrylate (MEA), and 4-10 parts by weight of 2-phenoxyethyl acrylate (PEA). In one embodiment, the average molecular weight of the main agent is between 1.2 and 1.7 million, and Mw / Mn is between 3.5 and 5.

(B) 架橋劑：架橋劑可幫助主劑內的（甲基）丙烯酸酯單體產生交聯，形成網狀結構，提高黏著層的強度，架橋劑的分子內具有至少兩個官能基，能與主劑內的（甲基）丙烯酸酯單體的極性官能基反應，其種類有環氧系架橋劑、異氰酸酯系架橋劑、亞胺系架橋劑、金屬螯合系架橋劑、氮丙啶系架橋劑，可選擇其中一種或混和多種架橋劑，架橋劑的總量為0.05~20重量份，架橋劑的比例如果過低，雖能增加部分黏著力，但形成的黏著層內聚力不足，高溫測試時會產生發泡現象。 (B) Bridging agent: The bridging agent can help the (meth) acrylate monomer in the main agent to crosslink, form a network structure, and improve the strength of the adhesive layer. The bridging agent has at least two functional groups in the molecule. Reacts with the polar functional group of the (meth) acrylate monomer in the main agent. Its types are epoxy-based bridging agent, isocyanate-based bridging agent, imine-based bridging agent, metal chelate-based bridging agent, and aziridine. As a bridging agent, one kind can be selected or mixed with a plurality of bridging agents. The total amount of the bridging agent is 0.05 to 20 parts by weight. If the proportion of the bridging agent is too low, although it can increase part of the adhesive force, the cohesion of the formed adhesive layer is insufficient. Foaming may occur during the process.

環氧系架橋劑例如可選擇自：雙酚A型之環氧樹脂、乙二醇二縮水甘油醚、聚乙二醇二縮水甘油醚、丙三醇二縮水甘油醚、丙三醇三縮水甘油醚、1,6-己二醇二縮水甘油醚、三羥甲基丙烷三縮水甘油醚、N,N-二縮水甘油基苯胺、N,N,N’,N’-四縮水甘油基-間-二甲苯二胺、1,3-雙(N,N-二縮水甘油基胺基甲基)環己烷等。The epoxy bridging agent can be selected from, for example, bisphenol A epoxy resin, ethylene glycol diglycidyl ether, polyethylene glycol diglycidyl ether, glycerol diglycidyl ether, glycerol triglycidyl Ether, 1,6-hexanediol diglycidyl ether, trimethylolpropane triglycidyl ether, N, N-diglycidylaniline, N, N, N ', N'-tetraglycidyl-m -Xylene diamine, 1,3-bis (N, N-diglycidylaminomethyl) cyclohexane, and the like.

異氰酸酯系架橋劑分子內至少有兩個異氰酸酯基(NCO)，例如可選擇自：甲苯二異氰酸酯、二異氰酸六亞甲酯、異佛爾酮二異氰酸酯、二甲苯二異氰酸酯、氫化二甲苯二異氰酸酯、二苯基甲烷二異氰酸酯、氫化二苯基甲烷二異氰酸酯、萘二異氰酸酯、三苯基甲烷三異氰酸酯等。另外，使用這些異氰酸酯化合物與甘油或三羥甲基丙烷等多元醇反應而成之加成物、或將異氰酸酯化合物製成二聚物、三聚物等亦可成為架橋劑。Isocyanate bridging agent has at least two isocyanate groups (NCO) in the molecule, for example, can be selected from: toluene diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, xylene diisocyanate, hydrogenated xylene diisocyanate Isocyanates, diphenylmethane diisocyanates, hydrogenated diphenylmethane diisocyanates, naphthalene diisocyanates, triphenylmethane triisocyanates, and the like. In addition, a bridging agent can also be used by using an adduct obtained by reacting these isocyanate compounds with a polyhydric alcohol such as glycerin or trimethylolpropane, or by forming an isocyanate compound into a dimer or trimer.

亞胺系架橋劑例如可選擇自：二乙烯三胺、三乙烯四胺。The imine bridging agent can be selected from, for example, diethylenetriamine and triethylenetetramine.

金屬螯合系架橋劑例如可選擇自：乙醯基丙酮或乙醯基乙酸乙酯與鋁、鐵、銅、鋅、錫、鈦、鎳、銻、鎂、鋇、鉻及鋯等之多價金屬配位而成之化合物等。The metal chelating bridging agent can be selected from, for example, the multivalent value of ethylacetone or ethylacetate with aluminum, iron, copper, zinc, tin, titanium, nickel, antimony, magnesium, barium, chromium, zirconium, etc. Compounds formed by coordination of metals.

氮丙啶系架橋劑例如可選擇自：二苯基甲烷-4,4’-雙(1-氮丙啶甲醯胺)、甲苯-2,4-雙(1-氮丙啶甲醯胺)、三伸乙基三聚氰胺、間苯二甲醯基雙-1-(2-甲基氮丙啶)、參-1-氮丙啶基氧化膦、六亞甲基-1,6-雙(1-氮丙啶甲醯胺)、三羥甲基丙烷-三-β-氮丙啶基丙酸酯、四羥甲基甲烷-三-β-氮丙啶基丙酸酯等。The aziridine bridging agent can be selected from, for example, diphenylmethane-4,4'-bis (1-aziridinecarboxamide), toluene-2,4-bis (1-aziridinecarboxamide) , Triethylene melamine, m-xylylenedi-bis-1- (2-methylaziridine), p--1-aziridinylphosphine oxide, hexamethylene-1,6-bis (1 -Aziridinecarboxamide), trimethylolpropane-tri-β-aziridinylpropionate, tetramethylolmethane-tri-β-aziridinylpropionate, and the like.

(C) 矽烷偶合劑：可選擇下列一種或混和多種矽烷偶合劑，矽烷偶合劑的總量為0.01~10重量份。矽烷偶合劑例如可選擇自：乙烯基三甲氧基矽烷、乙烯基三乙氧基矽烷、乙烯基參(2-甲氧基乙氧基)矽烷、3-甲基丙烯氧基丙基三甲氧基矽烷等之含聚合性不飽和基（如烯鍵）之矽烷化合物；或是例如可選擇自：3-環氧丙氧基丙基三甲氧基矽烷、2-(3,4-環氧基環己基)乙基三甲氧基矽烷、3-環氧丙氧基丙基甲基二甲氧基矽烷、3-環氧丙氧基丙基三乙氧基矽烷、3-環氧丙氧基丙基乙氧基二甲基矽烷等之具有環氧基構造之矽烷化合物；或是例如可選擇自：3-胺基丙基三甲氧基矽烷、3-胺基丙基三乙氧基矽烷、N-(2-胺基乙基)-3-胺基丙基三甲氧基矽烷、N-(2-胺基乙基)-3-胺基丙基甲基二甲氧基矽烷等之含胺基之矽烷化合物；或是例如可選擇自：3-氯丙基甲基二甲氧基矽烷、3-氯丙基三甲氧基矽烷等之含鹵素取代基之矽烷化合物；其他例如：3-甲基丙烯醯氧基丙基三甲氧基矽烷、3-巰基丙基三甲氧基矽烷等。黏著劑的組成還可以根據實際的產品需求，添加其他適當的添加劑，例如包括抗靜電劑等等。舉例來說，抗靜電劑可包括具有4級銨鹽、吡啶嗡鹽、第1~3級胺基等陽離子性基的各種陽離子性抗靜電劑；具有磺酸鹽基、硫酸酯鹽基、磷酸酯鹽基、膦酸鹽基等陰離子性基的陰離子性抗靜電劑；胺基酸類、胺基硫酸酯類等的兩性抗靜電劑；胺基醇系、甘油系、聚乙二醇系等的非離子性抗靜電劑；或將如上述的抗靜電劑高分子量化所得到的高分子型抗靜電劑等。抗靜電劑的添加量為0.1~1.0重量份，測得的表面阻抗範圍為10 10~10 11歐姆。 (C) Silane coupling agent: one of the following can be selected or mixed with a plurality of silane coupling agents. The total amount of the silane coupling agent is 0.01 to 10 parts by weight. Silane coupling agents can be selected from, for example, vinyltrimethoxysilane, vinyltriethoxysilane, vinyl ginseng (2-methoxyethoxy) silane, 3-methacryloxypropyltrimethoxy Silane compounds containing polymerizable unsaturated groups (such as ethylenic bonds); or, for example, selected from: 3-glycidoxypropyltrimethoxysilane, 2- (3,4-epoxy ring Hexyl) ethyltrimethoxysilane, 3-glycidoxypropylmethyldimethoxysilane, 3-glycidoxypropyltriethoxysilane, 3-glycidoxypropyl Silane compounds having an epoxy group structure, such as ethoxydimethylsilane; or, for example, selected from: 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, N- (2-Aminoethyl) -3-aminopropyltrimethoxysilane, N- (2-aminoethyl) -3-aminopropylmethyldimethoxysilane, etc. Silane compounds; or, for example, halogenated substituent-containing silane compounds such as 3-chloropropylmethyldimethoxysilane, 3-chloropropyltrimethoxysilane, etc .; other examples: 3-methylpropene Methoxypropyltrimethoxy Silane, 3-mercaptopropyl trimethoxy Silane like. The composition of the adhesive can also be added with other appropriate additives according to the actual product requirements, such as including antistatic agents. For example, the antistatic agent may include various cationic antistatic agents having cationic groups such as a level 4 ammonium salt, a pyridinium salt, and a level 1 to 3 amine group; having a sulfonate group, a sulfate salt group, a phosphoric acid Anionic antistatic agents such as ester salts, phosphonates and other anionic groups; amphoteric antistatic agents such as amino acids and amino sulfates; amino alcohols, glycerols, polyethylene glycols, etc. A nonionic antistatic agent; or a polymer-type antistatic agent obtained by polymerizing the antistatic agent as described above. The antistatic agent is added in an amount of 0.1 to 1.0 parts by weight, and the measured surface impedance range is 10 10 to 10 11 ohms.

在一實施例中，吸收材料為一種包含如下所示結構式(I)的四氮雜卟啉染料：

Figure TWI613471BD00001
(I) 其中，R 41至R 48分別獨立表示氫原子、鹵原子、氰基、硝基、取代或未取代的烷基、取代或未取代的烷氧基、取代或未取代的芳香基、取代或未取代的芳香氧基、取代或未取代的芳烷氧基、或者取代或未取代的胺基，M表示2個氫原子、2個1價金屬原子、2價金屬原子、3價取代金屬原子或氧化金屬原子。 In one embodiment, the absorbing material is a tetraazaporphyrin dye comprising structural formula (I) as shown below:
Figure TWI613471BD00001
(I) wherein R 41 to R 48 each independently represent a hydrogen atom, a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aromatic group, A substituted or unsubstituted aromatic oxy group, a substituted or unsubstituted aralkoxy group, or a substituted or unsubstituted amine group, M represents 2 hydrogen atoms, 2 monovalent metal atoms, divalent metal atoms, and trivalent substitution Metal atom or oxidized metal atom.

吸收材料36的另一實例為一種方酸菁染料(squarylium dye)：

Figure TWI613471BD00002
(II) 式II中，R 1至R 4分別獨立地表示氫原子、鹵原子、羥基、可具有取代基之苯基或碳數1至20之1價飽和烴基。 R 5至R 8分別獨立地表示氫原子、羥基、巰基、碳數1至5之烷氧基或三氟甲基。 R 9至R 12分別獨立地表示碳數1至20之1價飽和烴基，該1價飽和烴基所含之氫原子係可被鹵原子、氰基、胺甲醯基、胺磺醯基、羥基或胺基取代，在構成該飽和烴基之碳原子之間可***氧原子或硫原子。 就R 1至R 4中之鹵原子而言，可列舉氟原子、氯原子、溴原子或碘原子。 就R 1至R 4及R 9至R 12中之飽和烴基而言，可列舉例如：甲基、乙基、丙基、丁基、戊基、己基、庚基、辛基、壬基、癸基、十二烷基、十六烷基及二十烷基等碳數1至20之直鏈烷基；異丙基、異丁基、第二丁基、第三丁基、異戊基、新戊基及2-乙基己基等碳數3至20之分支烷基；環丙基、環戊基、環己基、環庚基、環辛基及三環癸基等碳數3至20之脂環式飽和烴基。 就R 1至R 4中之苯基可具有之取代基而言，可列舉鹵原子、氰基、羥基、胺基等。 式(II)中，R 1至R 4分別獨立，較佳係氫原子。 R 5至R 8分別獨立地較佳係氫原子、羥基、或碳數1至5之烷氧基，更佳係氫原子、羥基、甲氧基、或乙氧基。 R 9至R 12分別獨立地較佳係碳數1至10之烷基(該烷基中，氫原子可具有羥基，碳原子之間可***氧原子)。 上述材料實例僅為舉例之用，熟習此技藝之人士可視實際需求而為適當選用，並不因此影響或限制本發明的實施與保護範圍。 Another example of the absorbing material 36 is a squarylium dye:
Figure TWI613471BD00002
(II) In Formula II, R 1 to R 4 each independently represent a hydrogen atom, a halogen atom, a hydroxyl group, a phenyl group which may have a substituent, or a monovalent saturated hydrocarbon group having 1 to 20 carbon atoms. R 5 to R 8 each independently represent a hydrogen atom, a hydroxyl group, a mercapto group, an alkoxy group having 1 to 5 carbon atoms, or a trifluoromethyl group. R 9 to R 12 each independently represent a monovalent saturated hydrocarbon group having 1 to 20 carbon atoms, and the hydrogen atom contained in the monovalent saturated hydrocarbon group may be a halogen atom, a cyano group, a carbamoyl group, an amidino group, a hydroxyl group Or an amine group may be substituted, and an oxygen atom or a sulfur atom may be inserted between the carbon atoms constituting the saturated hydrocarbon group. Examples of the halogen atom in R 1 to R 4 include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom. Examples of the saturated hydrocarbon group in R 1 to R 4 and R 9 to R 12 include, for example, methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, and decyl Alkyl, dodecyl, hexadecyl, and eicosyl, etc. linear alkyl groups having 1 to 20 carbon atoms; isopropyl, isobutyl, second butyl, third butyl, isopentyl, Neopentyl and 2-ethylhexyl branched alkyl groups having 3 to 20 carbons; cyclopropyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl and tricyclodecyl carbons Alicyclic saturated hydrocarbon. Examples of the substituent which the phenyl group in R 1 to R 4 may have include a halogen atom, a cyano group, a hydroxyl group, and an amine group. In the formula (II), R 1 to R 4 are each independently and preferably a hydrogen atom. R 5 to R 8 are each independently preferably a hydrogen atom, a hydroxyl group, or an alkoxy group having 1 to 5 carbon atoms, and more preferably a hydrogen atom, a hydroxyl group, a methoxy group, or an ethoxy group. R 9 to R 12 are each independently preferably an alkyl group having 1 to 10 carbon atoms (in the alkyl group, a hydrogen atom may have a hydroxyl group, and an oxygen atom may be inserted between the carbon atoms). The above examples of materials are for illustration purposes only, and those skilled in the art may make appropriate selections based on actual needs, without affecting or limiting the scope of implementation and protection of the present invention.

本發明經實驗發現適用於本發明中提升色域的吸收材料本身的穿透頻譜，以及在黏著劑層34中摻入吸收材料36後的本發明偏光板的穿透頻譜如第4A與4B圖所示，其中材料1、材料2與材料3分別為： 材料1如式I結構，

Figure TWI613471BD00003
(I) 其中： 中心金屬M為鈀(palladium; Pd)，摻入濃度為 1%； 取代基R 41、R 43、R 45、R 47為三級丁基(tert-butyl)；且 取代基R 42、R 44、R 46、R 48為2-氟苯基(2-fluorophenyl)。 材料2如式I結構， 其中，中心金屬M為銅(copper; Cu)，摻入濃度為1%； 取代基R 41、R 43、R 45、R 47為三級丁基(tert-butyl)；且 取代基R 42、R 44、R 46、R 48為2-氟苯基(2-fluorophenyl)。 材料3如式I結構， 其中，中心金屬為銅(copper; Cu)，摻入濃度為0.1% 取代基R 41、R 43、R 45、R 47為三級丁基(tert-butyl)；且 取代基R 42、R 44、R 46、R 48為2-氟苯基(2-fluorophenyl)。 The present invention experimentally finds that the transmission spectrum of the absorbing material itself suitable for improving the color gamut in the present invention, and the transmission spectrum of the polarizing plate of the present invention after the absorbing material 36 is doped in the adhesive layer 34 are shown in FIGS. 4A and 4B. As shown, material 1, material 2 and material 3 are: Material 1 has the structure of formula I,
Figure TWI613471BD00003
(I) wherein: the central metal M is palladium (Pd), and the concentration is 1%; the substituents R 41 , R 43 , R 45 , and R 47 are tert-butyl; and the substituents are R 42 , R 44 , R 46 and R 48 are 2-fluorophenyl. Material 2 has the structure of formula I, wherein the central metal M is copper (Cu), and the concentration is 1%; the substituents R 41 , R 43 , R 45 , and R 47 are tert-butyl ; And the substituents R 42 , R 44 , R 46 and R 48 are 2-fluorophenyl. Material 3 has the structure of Formula I, wherein the central metal is copper (Cu), and the concentration of the substituents R 41 , R 43 , R 45 , and R 47 is 0.1% tert-butyl; The substituents R 42 , R 44 , R 46 , and R 48 are 2-fluorophenyl.

由圖中可知，吸收材料於波長570-600nm間的穿透頻譜比波長450nm間的穿透頻譜低10%以上，即T(570nm~600nm)＜0.9 * T(450nm)，較佳低15% 以上，更加低20%以上。且吸收材料於比波長650nm間的穿透頻譜低15%以上，即T(570nm~600nm)＜0.85 * T(650nm)，較佳低20%以上，更加低25%以上。It can be seen from the figure that the transmission spectrum of the absorption material between the wavelengths of 570-600nm is more than 10% lower than the transmission spectrum of the wavelength of 450nm, that is, T (570nm ~ 600nm) <0.9 * T (450nm), preferably 15% lower Above, more than 20% lower. And the absorption spectrum of the absorption material is more than 15% lower than the transmission spectrum between the wavelengths of 650nm, that is, T (570nm ~ 600nm) <0.85 * T (650nm), preferably 20% lower, and more than 25% lower.

如上所述，根據本發明的偏光板組件可用於第1圖所示的顯示面板的第一光調變元件或第二光調變元件或者兩者中，兼具偏光與提升色域的效果，因此，背光元件14所發出的背光不需要使用配合量子點膜材激發的藍光，而可使用一般的白光背光源。當然，也可以視其它設計需求而使用不同的背光源，或者與其它有助於提升色域的技術組合使用。As described above, the polarizing plate assembly according to the present invention can be used in the first light modulation element or the second light modulation element or both of the display panel shown in FIG. Therefore, the backlight emitted by the backlight element 14 does not need to use the blue light excited by the quantum dot film, but can use a general white light backlight source. Of course, different backlight sources can also be used according to other design requirements, or combined with other technologies that help improve the color gamut.

在一顯示面板實例中，除了於第一光調變元件或第二光調變元件中使用本發明的色域增進偏光板外，可配合於另一光調變元件中使用金屬線柵偏光板(wire-grid polarizer; WGP)。金屬線柵偏光板是以金屬線做成，平行相間排列成光柵，金屬中的電子只能沿導線運動，當光照射在金屬線柵偏光板上時，光波電向量在金屬線方向的振動會被金屬線中的電子吸收，垂直金屬線方向的光波電向量就能通過，這樣只有沿導線縱向的光子被吸收，而橫向的光子未被吸收，從而達到偏振效果。除了以金屬線做成平行相間排列的光柵之外，亦可用光學蝕刻的方法，在沉積有金屬薄膜的基底上蝕刻出所需寬度的導線。在本實施例中的金屬線柵偏光板的金屬線間距為奈米等級(10-200nm)，高度為50-1000nm。使用的金屬可為鋁、銀、金、鉛、銅等，尤以鋁為佳。In an example of a display panel, in addition to using the color gamut-enhancing polarizing plate of the present invention in a first light modulating element or a second light modulating element, a metal wire grid polarizing plate can be used in conjunction with another light modulating element. (wire-grid polarizer; WGP). Metal wire grid polarizers are made of metal wires, arranged in parallel to form a grating. The electrons in the metal can only move along the wire. When light is irradiated on the metal wire grid polarizer, the vibration of the light wave vector in the direction of the metal wire will Absorbed by the electrons in the metal wire, the light wave electric vector in the direction of the vertical metal wire can pass, so that only the photons along the longitudinal direction of the wire are absorbed, and the transverse photons are not absorbed, thereby achieving the polarization effect. In addition to using a metal wire to make a grating arranged in parallel and alternately, an optical etching method can also be used to etch a wire of a desired width on a substrate on which a metal thin film is deposited. The metal line pitch of the metal wire grid polarizing plate in this embodiment is in the nanometer class (10-200 nm) and the height is 50-1000 nm. The metal used may be aluminum, silver, gold, lead, copper, etc. Aluminum is preferred.

另外，順應金屬柵欄偏光板的特性，可以配合使用單邊補償膜。補償膜21的材料選用，以垂直配向(VA)液晶設計參數LC Delta_nd設計於300~370nm之範圍下, 使其R0在50~100nm之間，較佳70-100nm之間，而Rth在200~350nm之間，較佳270-320nm之間。其中，R0= (nx-ny) ×d；而Rth＝((nx＋ny)/2–nz)×d，其中nx，ny與nz分別代表補償膜在x軸、y軸與z軸的三度空間折射係數，d代表補償膜21的厚度)。此時可具有與原面板雙邊補償膜相當或更佳之視角表現, 此單邊光學補償膜材料可為三醋酸纖維素(TAC)、環烯烴聚合物(COP)、聚甲基丙烯酸甲酯(PMMA)、聚碳酸酯(PC)、液晶材料或複合型材料搭配而成。由上述元件所構成的顯示面板結構實例如第5A或5B圖所示。In addition, according to the characteristics of the metal fence polarizing plate, a unilateral compensation film can be used together. The material of the compensation film 21 is selected, and the vertical alignment (VA) liquid crystal design parameter LC Delta_nd is designed in the range of 300 ~ 370nm, so that R0 is between 50 ~ 100nm, preferably 70-100nm, and Rth is 200 ~ Between 350nm, preferably between 270-320nm. Among them, R0 = (nx-ny) × d; and Rth = ((nx + ny) / 2–nz) × d, where nx, ny, and nz represent the three-dimensional space of the compensation film in the x-axis, y-axis, and z-axis, respectively. Refractive index, d represents the thickness of the compensation film 21). At this time, it can have a viewing angle performance equivalent to or better than the original bilateral compensation film. The material of this unilateral optical compensation film can be cellulose triacetate (TAC), cycloolefin polymer (COP), polymethyl methacrylate (PMMA ), Polycarbonate (PC), liquid crystal or composite materials. An example of the structure of a display panel composed of the above elements is shown in FIG. 5A or 5B.

第6圖顯示本發明顯示面板在各種不同標準下的色域的變化情況示意圖，其中x軸為色度x，y軸為色度y。使用本發明所發展出的色域增進偏光板所製得的顯示面板，在不需要量子點膜材的情況下，可有效提升色域達10%以上。例如NTSC色域可提升達約25%，DCI-P3色域可提升達約27%，BT2020色域可提升達約19%。若使用CGEP搭配WGP作為上下偏光板，則除了可有效提升色域達10%以上之外，可達30%穿透率以及廣視角表現，且因僅需單邊補償膜而有薄化的效果。FIG. 6 is a schematic diagram showing changes in the color gamut of the display panel of the present invention under various standards, where the x-axis is the chromaticity x and the y-axis is the chromaticity y. The display panel prepared by using the color gamut enhanced polarizing plate developed by the present invention can effectively improve the color gamut by more than 10% without the need for a quantum dot film. For example, the NTSC color gamut can be increased by approximately 25%, the DCI-P3 color gamut can be increased by approximately 27%, and the BT2020 color gamut can be increased by approximately 19%. If CGEP and WGP are used as the upper and lower polarizers, in addition to effectively improving the color gamut by more than 10%, it can reach 30% transmittance and wide viewing angle performance, and it has a thinning effect because only a single-sided compensation film is required. .

雖然本發明已以較佳實施例揭露如上，然其並非用以限定本發明，例如，雖然在上述說明中係以本發明色域增進偏光板於液晶顯示面板上的應用為例，但任何熟習此技藝者，在不脫離本發明之精神和範圍內，本發明色域增進偏光板可以用於不同光學元件中達到類似的目的，此外，熟習此技藝者亦當可作些許之更動與潤飾，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. For example, although the application of the color gamut-enhancing polarizing plate of the present invention to a liquid crystal display panel is taken as an example in the above description, any familiarity Without departing from the spirit and scope of the present invention, the color gamut enhancement polarizer of the present invention can be used in different optical elements to achieve similar purposes. In addition, those skilled in the art can also make some changes and retouching. Therefore, the protection scope of the present invention shall be determined by the scope of the appended patent application.

11‧‧‧顯示面板11‧‧‧Display Panel

12‧‧‧第一光調變元件12‧‧‧The first light modulation element

13‧‧‧第二光調變元件13‧‧‧Second light modulation element

14‧‧‧背光元件14‧‧‧ backlight

30‧‧‧偏光基體30‧‧‧Polarized substrate

31‧‧‧保護層31‧‧‧ protective layer

32‧‧‧保護層32‧‧‧ protective layer

33‧‧‧表面保護膜33‧‧‧Surface protection film

34‧‧‧黏著劑層34‧‧‧Adhesive layer

35‧‧‧離型膜35‧‧‧ release film

36‧‧‧吸收材料36‧‧‧ Absorbent material

第1圖為根據本發明偏光板組件之一應用例的顯示面板結構的剖面示意圖； 第2圖為根據本發明一實施例的偏光板組件結構的剖面示意圖； 第3A圖為根據本發明一實施例的偏光板組件所含吸收材料於偏光板組件結構中的分布示意圖； 第3B圖為根據本發明另一實施例的偏光板組件所含吸收材料於偏光板組件結構中的分布示意圖； 第4A圖為根據本發明一實施例的偏光板組件中所含三種吸收材料實例的穿透頻譜圖； 第4B圖為根據本發明一實施例的偏光板組件中包含三種吸收材料實例的穿透頻譜圖； 第5A與5B圖為兩種顯示面板結構實例的剖面示意圖，其中顯示面板包括根據本發明一實施例的偏光板組件與一金屬線柵偏光板搭配使用；以及 第6圖為本發明顯示裝置色域增進效果的曲線示意圖。FIG. 1 is a schematic sectional view of a display panel structure according to an application example of a polarizing plate assembly according to the present invention; FIG. 2 is a schematic sectional view of a polarizing plate assembly structure according to an embodiment of the present invention; and FIG. 3A is an implementation according to the present invention The distribution diagram of the absorbing material contained in the example polarizing plate assembly in the structure of the polarizing plate assembly; FIG. 3B is a schematic diagram of the distribution of the absorbing material contained in the polarizing plate assembly in the structure of the polarizing plate assembly according to another embodiment of the present invention; FIG. 4B is a transmission spectrum diagram of an example of three absorbing materials included in a polarizing plate assembly according to an embodiment of the present invention; FIG. 4B is a transmission spectrum diagram of an example of three absorbing materials included in a polarizing plate assembly according to an embodiment of the present invention 5A and 5B are schematic cross-sectional views of two display panel structure examples, in which the display panel includes a polarizer assembly according to an embodiment of the present invention and a metal wire grid polarizer; and FIG. 6 is a display device of the present invention Schematic diagram of color gamut enhancement effect.

無。no.

30‧‧‧偏光基體 30‧‧‧Polarized substrate

31‧‧‧保護層 31‧‧‧ protective layer

32‧‧‧保護層 32‧‧‧ protective layer

33‧‧‧表面保護膜 33‧‧‧Surface protection film

34‧‧‧黏著劑層 34‧‧‧Adhesive layer

35‧‧‧離型膜 35‧‧‧ release film

Claims (9)

一種偏光板組件，包括：一偏光基體；一保護層，位於該偏光基體的一側；另一保護層，位於該偏光基體相對於該保護層的另一側；以及一黏著劑層，位於該保護層相對於該偏光基體的另一側，其中，該偏光板組件更包括一吸收材料，其於波長570-600nm間的穿透頻譜比波長450nm的穿透頻譜低10%以上，且比波長650nm的穿透頻譜低15%以上，該吸收材料為一種包含如下所示結構式(I)的四氮雜卟啉染料或一種包含如下所示結構式(II)的方酸菁染料(squarylium dye)：
Figure TWI613471BC00001
 其中，R41至R48分別獨立表示氫原子、鹵原子、氰基、硝基、取代或未取代的烷基、取代或未取代的烷氧基、取代或未取代的芳香基、取代或未取代的芳香氧基、取代或未取代的芳烷氧基、或者取代或未取代的胺基；M表示2個氫原子、2個1價金屬原子、2價金屬原子、3價取代金屬原子或氧化金屬原子；
Figure TWI613471BC00002
 其中，R1至R4分別獨立地表示氫原子、鹵原子、羥基、可具有取代基之苯基或碳數1至20之1價飽和烴基；R5至R8分別獨立地表示氫原子、羥基、巰基、碳數1至5之烷氧基或三氟甲基；R9至R12分別獨立地表示碳數1至20之1價飽和烴基，該1價飽和烴基所含之氫原子係可被鹵原子、氰基、胺甲醯基、胺磺醯基、羥基或胺基取代，在構成該飽和烴基之碳原子之間可***氧原子或硫原子。 A polarizing plate assembly includes: a polarizing substrate; a protective layer on one side of the polarizing substrate; another protective layer on the other side of the polarizing substrate opposite to the protective layer; and an adhesive layer on the polarizing substrate. The protective layer is opposite to the other side of the polarizing substrate, wherein the polarizing plate assembly further includes an absorbing material, and its transmission spectrum between the wavelengths of 570-600nm is more than 10% lower than the transmission spectrum of the wavelength of 450nm, and the wavelength The transmission spectrum at 650nm is more than 15% lower. The absorption material is a tetraazaporphyrin dye containing the structural formula (I) shown below or a squarylium dye containing the structural formula (II) shown below. ):
Figure TWI613471BC00001
 Among them, R 41 to R 48 each independently represent a hydrogen atom, a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aromatic group, a substituted or unsubstituted A substituted aromatic oxy group, a substituted or unsubstituted aralkoxy group, or a substituted or unsubstituted amine group; M represents 2 hydrogen atoms, 2 monovalent metal atoms, divalent metal atoms, trivalent substituted metal atoms, or Oxidizing metal atoms
Figure TWI613471BC00002
 Among them, R 1 to R 4 each independently represent a hydrogen atom, a halogen atom, a hydroxyl group, a phenyl group which may have a substituent, or a monovalent saturated hydrocarbon group having 1 to 20 carbon atoms; R 5 to R 8 each independently represent a hydrogen atom, Hydroxyl group, mercapto group, alkoxy group having 1 to 5 carbon atoms or trifluoromethyl group; R 9 to R 12 each independently represent a monovalent saturated hydrocarbon group having 1 to 20 carbon atoms, and the hydrogen atom system contained in the monovalent saturated hydrocarbon group It may be substituted with a halogen atom, a cyano group, a carbamoyl group, an sulfamoyl group, a hydroxyl group, or an amine group, and an oxygen atom or a sulfur atom may be inserted between the carbon atoms constituting the saturated hydrocarbon group. 如申請專利範圍第1項所述之偏光板組件，其中該偏光基體材料係選自聚乙烯醇樹脂，及/或該保護層與該另一保護層之材料係選自聚甲基丙烯酸甲酯(Polymethylmethacrylate，PMMA)、三聚醋酸纖維素(Triacetyl Cellulose，TAC)、丙烯酸樹脂膜、聚芳香羥樹脂膜、聚醚樹脂膜、環聚烯烴樹脂膜、聚酯(Polyethylene Terephthalate，PET)、聚丙稀(Polypropylene，PP)、環烯烴聚合物(Cyclo Olefin Polymer，COP)、聚碳酸酯(Polycarbonate，PC)、或其組合。 The polarizing plate assembly according to item 1 of the scope of patent application, wherein the polarizing base material is selected from polyvinyl alcohol resin, and / or the material of the protective layer and the other protective layer is selected from polymethyl methacrylate (Polymethylmethacrylate (PMMA)), Triacetyl Cellulose (TAC), acrylic resin film, polyaromatic hydroxy resin film, polyether resin film, cyclic polyolefin resin film, polyester (Polyethylene Terephthalate, PET), polypropylene (Polypropylene, PP), Cyclo Olefin Polymer (COP), Polycarbonate (PC), or a combination thereof. 如申請專利範圍第1項所述之偏光板組件，其中該吸收材料之主要吸收波長為560~610nm。 The polarizing plate assembly according to item 1 of the scope of patent application, wherein the main absorption wavelength of the absorbing material is 560 to 610 nm. 如申請專利範圍第1項所述之偏光板組件，其中，該吸收材料摻入於該黏著劑層中。 The polarizing plate assembly according to item 1 of the scope of patent application, wherein the absorbing material is incorporated in the adhesive layer. 如申請專利範圍第1項所述之偏光板組件，其中，該吸收材料獨立膜層型式形成於該黏著劑層與該保護層之間。 The polarizing plate assembly according to item 1 of the scope of patent application, wherein the independent film layer type of the absorbing material is formed between the adhesive layer and the protective layer. 如申請專利範圍第1項所述之偏光板組件，其中，該吸收材料係摻入於該保護層或該偏光基體中。 The polarizing plate assembly according to item 1 of the patent application scope, wherein the absorbing material is incorporated in the protective layer or the polarizing substrate. 如申請專利範圍第4或6項所述之偏光板組件，其中，該吸收材料之濃度範圍為0.1%~5.0%。 The polarizing plate assembly according to item 4 or 6 of the scope of patent application, wherein the concentration range of the absorbing material is 0.1% to 5.0%. 如申請專利範圍第5項所述之偏光板組件，其中，該獨立膜層之厚度為0.1um~5um。 The polarizing plate assembly according to item 5 of the scope of patent application, wherein the thickness of the independent film layer is 0.1um ~ 5um. 一種顯示裝置，包括：如申請專利範圍第1至8項任一項中所述之偏光板組件；以及一顯示面板，其中該顯示面板為扭轉向列(TN)顯示面板、橫向電場效應(IPS)顯示面板、垂直配向(VA)顯示面板、或OLED顯示面板。 A display device includes: a polarizing plate assembly as described in any one of claims 1 to 8 of the patent application scope; and a display panel, wherein the display panel is a twisted nematic (TN) display panel, a lateral electric field effect (IPS ) Display panel, vertical alignment (VA) display panel, or OLED display panel.
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