WO2015113436A1 - 彩色滤光片基板及其制备方法以及包含该彩色滤光片基板的显示装置 - Google Patents

彩色滤光片基板及其制备方法以及包含该彩色滤光片基板的显示装置 Download PDF

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WO2015113436A1
WO2015113436A1 PCT/CN2014/091707 CN2014091707W WO2015113436A1 WO 2015113436 A1 WO2015113436 A1 WO 2015113436A1 CN 2014091707 W CN2014091707 W CN 2014091707W WO 2015113436 A1 WO2015113436 A1 WO 2015113436A1
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color
photochromic material
color filter
wavelength
filter substrate
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PCT/CN2014/091707
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English (en)
French (fr)
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吴光雄
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京东方科技集团股份有限公司
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Publication of WO2015113436A1 publication Critical patent/WO2015113436A1/zh

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509Filters, e.g. light shielding masks
    • G02F1/133514Colour filters
    • G02F1/133516Methods for their manufacture, e.g. printing, electro-deposition or photolithography

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  • Embodiments of the present invention relate to a color filter substrate, a method of fabricating the same, and a display device including the color filter substrate.
  • Color filters are key components for liquid crystal display (LCD) colorization.
  • the liquid crystal display is a non-active light-emitting component, and its color display is generally realized by the following process: an internal backlight module (for a penetrating LCD) or an external ambient incident light (for a reflective or semi-transparent LCD)
  • the light source is provided, and then the driving circuit and the liquid crystal control form a gray scale display, and then the hue is provided through at least the red, green and blue blocking blocks in the color filter, thereby forming a color display screen.
  • a manufacturing process of a color filter comprises: firstly forming a black matrix (BM) on a glass substrate; and then applying a color resist material of a certain color to the glass substrate on which the BM has been formed. Forming a color block of the color in a predetermined pixel area by soft baking, alignment exposure, development, peeling, hard baking, etc.; finally, repeating the above steps at least three times to form a color filter layer, the color filter
  • the light layer includes at least red, green, and blue blocking blocks.
  • At least one embodiment of the present invention provides a color filter substrate, a method of fabricating the same, and a display device including the color filter substrate, which can reduce production cost, shorten production cycle, and improve surface flatness and eliminate color resistance The angular difference of the block.
  • the photochromic material layer is subjected to partial exposure under different exposure parameters to form a color filter layer including a plurality of color block blocks, wherein the exposure parameters corresponding to the color block of the same color are the same.
  • the color filter layer includes at least three color blocks of red, green, and blue.
  • the exposure parameter is a wavelength
  • the step of performing sub-regional exposure of the layer of photochromic material under different exposure parameters to form a color filter layer comprising a plurality of color block blocks comprises:
  • Blocking the region where the red resistance is not required to be blocked by the first mask exposing the photochromic material layer with light of a first wavelength to form a red block for the illuminated region;
  • Blocking the region where the green resistance is not required to be blocked by the second mask exposing the photochromic material layer with light of the second wavelength to form the green region of the illuminated region;
  • the region in which the blue block is not required to be formed is blocked by the third mask, and the photochromic material layer is exposed using light of a third wavelength to form a blue block.
  • the color block forming step corresponding to the wavelength is first performed.
  • the wavelength ranges of the first wavelength, the second wavelength, and the third wavelength do not overlap.
  • the photochromic material is an irreversible ultraviolet color changing powder.
  • the photochromic material is an ultraviolet activated anti-counterfeiting ink.
  • the color filter substrate provided by the embodiment of the invention includes a color filter layer, and the color filter layer includes a plurality of color block blocks formed by sub-regional exposure of the photochromic material layer under different exposure parameters,
  • the photochromic material layer is coated with a photochromic material or a coating containing a photochromic material, wherein the exposure parameters corresponding to the color block of the same color are the same.
  • the color filter layer includes at least three primary color filter regions of red, green, and blue.
  • the exposure parameter is a wavelength
  • the photochromic material transitions to red at a first wavelength of light, to green at a second wavelength, and to blue at a third wavelength.
  • the photochromic material is an irreversible ultraviolet color changing powder.
  • the photochromic material is an ultraviolet activated anti-counterfeiting ink.
  • a display device provided by an embodiment of the present invention includes the above color filter substrate.
  • FIG. 1 is a flow chart of a method for preparing a color filter substrate according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic structural view of a photochromic material layer according to Embodiment 1 of the present invention.
  • FIG. 3 is a flow chart showing the sub-area exposure of the photochromic material layer under different exposure parameters according to the first embodiment of the present invention
  • FIG. 4 is a schematic view showing exposure of a red (R) color block formed with a color filter layer according to Embodiment 1 of the present invention
  • FIG. 5 is a schematic view showing exposure of a green (G) color block formed with a color filter layer according to Embodiment 1 of the present invention
  • FIG. 6 is a schematic view showing exposure of a blue (B) color block formed with a color filter layer according to Embodiment 1 of the present invention.
  • Embodiments of the present invention provide a method for preparing a color filter substrate, as shown in FIG. 1, which includes:
  • the photochromic material layer 12 is formed using a photochromic material or a coating comprising a photochromic material.
  • the photochromic material has the following characteristics: a specific chemical reaction (or a physical effect) occurs under the irradiation of light of a suitable wavelength to convert to another substance (or another form), and the corresponding absorption spectrum (Color) also changes.
  • a specific chemical reaction or a physical effect
  • the photochromic changes may be reversible or irreversible; if such photochromic changes are reversible, then at least the use of the color filter substrate is required to be irreversible.
  • the color filter layer 12' may be subsequently formed from the photochromic material layer 12 by various color mixing schemes, so reference will be made here to the desired color filter layer 12'.
  • the photochromic material used in step S101 is further described in its corresponding color mixing scheme.
  • RGB red/green/blue
  • RGBW red/green/blue/white
  • the color filter layer 12' generally includes at least three color blocks of red, green, and blue.
  • RGB red/green/blue
  • B blue
  • the photochromic material is rendered in at least three colors of red, green, and blue after being illuminated.
  • a photochromic material having the following characteristics (see: Application No.
  • the photochromic material is the material described in Application No. 201310280824.4 and Application No. 02117597.7.
  • the photochromic material that can implement the embodiments of the present invention other than the above description is feasible, and the embodiment of the present invention is not limited thereto.
  • the photochromic material is an irreversible ultraviolet color changing powder.
  • the irreversible ultraviolet color changing powder is generally applied to a trademark, a package, etc., which requires one-time detection, in ultraviolet light. (200 to 400 nm) shows a specific color under irradiation, but when it returns to the original visible light environment after discoloration, the generated color is no longer decolored, so that the trademark, packaging, and the like have a one-time detection effect.
  • the photochromic material may be a mixture of red, green, and blue irreversible ultraviolet color changing powders respectively exposed to ultraviolet light or an irreversible ultraviolet color changing powder having a multi-color function.
  • the photochromic material can be an ultraviolet-excited anti-counterfeiting ink.
  • the photochromic material layer 12 is subjected to sub-area exposure to form a color filter layer 12'; when exposed, the same area (the same color resistance pattern) corresponding to the same exposure parameter, forming a color of the same color Block.
  • the exposure parameter refers to the wavelength (or frequency) of light at the time of exposure or the intensity of light at the time of exposure or a combination of both.
  • the exposure parameter is the length of the exposure time.
  • the choice of exposure parameters in embodiments of the invention depends on the color changing conditions of the photochromic material. For example, if the selected photochromic material has the function of producing different colors for different wavelengths, by controlling the wavelength of the light during exposure, a color block including R, G, B, etc. can be separately fabricated under the action of the mask. Color filter layer 12'.
  • step 102 when a color filter layer 12' including three color resist blocks of red (R), green (G), and blue (B) is formed, step 102 includes:
  • Block 123 Block the region where the blue block is not formed by the third mask 22, and expose the photochromic material layer 12 with the third wavelength of light (the wavelength is ⁇ 3 ) to form a blue resistance of the illuminated region.
  • Block 123 is shown in FIG.
  • the order of the above sub-steps 1021, 1022, and 1023 is not limited, and the priority exposure is only when the wavelengths ⁇ 1, ⁇ 2, and ⁇ 3 are in such a size that one of the wavelengths simultaneously contains the other two wavelength components.
  • the magnitudes of the wavelengths ⁇ 1 , ⁇ 2 , and ⁇ 3 are related to the color changing conditions of the photochromic material layer 12, and are determined by the characteristics of the photochromic material itself used for the photochromic material layer 12, which is an embodiment of the present invention. Not limited. In one example, the different color block blocks are made to have different wavelengths and the wavelength ranges are not overlapped as much as possible or only a small portion of the overlap is present to avoid mutual influence.
  • some transparent substrate material such as SiO2 or SiNx, can be added to enhance the adhesion of the photochromic material.
  • the photochromic material layer 12 directly forms a color filter layer 12' after being exposed in different regions under different exposure parameters, so that only one coating process is required.
  • the color filter layer 12' is fabricated, which makes the fabrication process simple, thereby reducing the production cost and shortening the production cycle; moreover, the color blocks of the color filter layer 12' do not overlap at the intersection, so that the surface is flat and high. The angular difference of each color block is eliminated.
  • Embodiments of the present invention also provide a color filter substrate including a color filter layer 12' including sub-regional exposure of the photochromic material layer 12 under different exposure parameters. a plurality of color blocking blocks, the photochromic material layer 12 being coated by a photochromic material or a coating containing a photochromic material, wherein the exposure parameters corresponding to the color block of the same color are the same .
  • the color filter layer 12' includes at least three color blocks of red, green, and blue.
  • the photochromic material transitions to red at a first wavelength of light, to green at a second wavelength, and to blue at a third wavelength.
  • the photochromic material is an irreversible ultraviolet color changing powder or an ultraviolet excitation anti-counterfeiting ink.
  • the color filter substrate provided by the embodiment of the invention is simple to manufacture and low in cost; moreover, the color block of the color filter layer 12' does not overlap at the intersection, so that the surface flatness is high and the angular difference of each color block is eliminated. .
  • Embodiments of the present invention also provide a display device including the color provided by the embodiment of the present invention.
  • Color filter substrate is any product or component having a display function such as a liquid crystal panel, an electronic paper, an OLED panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • the display device provided by the embodiment of the present invention is not only low in cost but also improved in display quality due to the selection of the color filter substrate provided by the embodiment of the present invention.
  • the embodiment of the present invention uses a common RGB (red/green/blue) color mixing scheme as an example.
  • RGBY red/green/blue/yellow
  • RGBW red/ Other color mixing schemes such as green/blue/white.

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  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mathematical Physics (AREA)
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Abstract

提供了一种彩色滤光片基板及其制备方法、以及包含该彩色滤光片的显示装置,其能够降低生产成本,缩短生产周期,同时提高表面平整度并消除各色阻块的角段差。彩色滤光片基板的制备方法包括:在形成有黑矩阵(11)的基板(10)上涂覆光致变色材料或包含有光致变色材料的涂料以形成光致变色材料层(12);对所述光致变色材料层(12)在不同曝光参数下进行分区域曝光以形成由多种色阻块(121,122,123)组成的彩色滤光层(12'),其中,同种颜色的色阻块(121,122,123)对应的所述曝光参数相同。

Description

彩色滤光片基板及其制备方法以及包含该彩色滤光片基板的显示装置 技术领域
本发明的实施例涉及彩色滤光片基板及其制备方法以及包含该彩色滤光片基板的显示装置。
背景技术
彩色滤光片为液晶显示器(Liquid Crystal Display,LCD)彩色化的关键器件。液晶显示器为非主动发光组件,其色彩的显示一般通过以下过程实现:内部的背光模块(对于穿透型LCD而言)或外部的环境入射光(对于反射型或半穿透型LCD而言)提供光源,再搭配驱动电路与液晶控制形成灰阶显示,而后透过彩色滤光片中的至少红、绿、蓝色阻块提供色相,由此形成彩色显示画面。
已知一种彩色滤光片的制造工艺,其包括:首先在玻璃基板上制作一层黑矩阵(Black Matrix,BM);然后将某一颜色的色阻材料涂覆于已形成BM的玻璃基板上,经软烤、对准曝光、显影、剥离、硬烤等步骤在预设像素区域形成该种颜色的色阻块;最后将上述步骤至少重复三次以形成彩色滤光层,所述彩色滤光层至少包括红、绿、蓝色阻块。
在上述制备方法中,每制作一层色阻都需要进行一次涂覆、曝光、显影等步骤并且伴随材料的大量消耗;而且,在使用该方法形成彩色滤光层时,在色阻块交接处有一定的重叠(Overlap),在重叠区域色阻层会存在一定的突起,从而造成色阻的角段差,影响后续膜层的形成及产品质量。
发明内容
本发明的至少一个实施例提供一种彩色滤光片基板及其制备方法以及包含该彩色滤光片基板的显示装置,其能够降低生产成本、缩短生产周期,同时提高表面平整度并且消除各色阻块的角段差。
本发明实施例提供的彩色滤光片基板的制备方法包括以下步骤:
在形成有黑矩阵的基板上涂覆光致变色材料或包含有光致变色材料的 材料以形成光致变色材料层;
对所述光致变色材料层在不同曝光参数下进行分区域曝光以形成包括多种色阻块的彩色滤光层,其中,同种颜色的色阻块对应的所述曝光参数相同。
在一个示例中,所述彩色滤光层至少包括红、绿、蓝三种色阻块。
在一个示例中,所述曝光参数为波长。
在一个示例中,所述对所述光致变色材料层在不同曝光参数下进行分区域曝光以形成包括多种色阻块的彩色滤光层的步骤包括:
通过第一掩膜板遮挡不需要形成红色阻的区域,使用第一波长的光对所述光致变色材料层进行曝光以使被照射区域形成红色阻块;
通过第二掩膜板遮挡不需要形成绿色阻的区域,使用第二波长的光对所述光致变色材料层进行曝光以使被照射区域形成绿色阻块;
通过第三掩膜板遮挡不需要形成蓝色阻块的区域,使用第三波长的光对所述光致变色材料层进行曝光以使被照射区域形成蓝色阻块。
在一个示例中,如果所述第一波长、第二波长和第三波长中一个波长同时包含其它两个波长的成分,则首先执行所述波长对应的色阻块形成步骤。
在一个示例中,所述第一波长、第二波长和第三波长的波长范围不重叠。
在一个示例中,所述光致变色材料为不可逆的紫外变色粉。
在一个示例中,所述光致变色材料为紫外激发防伪油墨。
本发明实施例提供的彩色滤光片基板包括彩色滤光层,所述彩色滤光层包括由光致变色材料层在不同曝光参数下进行分区域曝光而形成的多种色阻块,所述光致变色材料层由光致变色材料或包含有光致变色材料的涂料涂覆而成,其中,同种颜色的色阻块对应的所述曝光参数相同。
在一个示例中,所述彩色滤光层至少包括红、绿、蓝三种基色滤光区。
在一个示例中,所述曝光参数为波长。
在一个示例中,所述光致变色材料在第一波长的光照射下转变为红色,在第二波长的光照射下转变为绿色,在第三波长的光照射下转变为蓝色。
在一个示例中,所述光致变色材料为不可逆的紫外变色粉。
在一个示例中,所述光致变色材料为紫外激发防伪油墨。
本发明的实施例提供的显示装置包括上述彩色滤光片基板。
附图说明
以下将结合附图对本发明的实施例进行更详细的说明,以使本领域普通技术人员更加清楚地理解本发明,其中:
图1为本发明实施例一提供的彩色滤光片基板的制备方法流程图;
图2为本发明实施例一中光致变色材料层的结构示意图;
图3为本发明实施例一中光致变色材料层在不同曝光参数下进行分区域曝光的流程图;
图4为本发明实施例一中形成彩色滤光层的红(R)色阻块的曝光示意图;
图5为本发明实施例一中形成彩色滤光层的绿(G)色阻块的曝光示意图;
图6为本发明实施例一中形成彩色滤光层的蓝(B)色阻块的曝光示意图。
附图标记
10-基板,11-黑矩阵,12-光致变色材料层,12’-彩色滤光层,121-红色阻块,122-绿色阻块,123-蓝色阻块,20-第一掩膜板,21-第二掩膜板,22-第三掩膜板。
具体实施方式
下面将结合本公开实施例中的附图,对本公开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公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。
除非另作定义,此处使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开专利申请说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性,而只是用来区分不同的组成部分。同样,“一个”或者“一”等类似词语也不表示数量限制,而是表示存在至少一个。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接,而是可以包括电性的连接,不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系,当被描述对象的绝对位置改变后,则该相对位置关系也相应 地改变。
本发明的实施例提供一种彩色滤光片基板的制备方法,如图1所示,其包括:
S101、在形成有黑矩阵11的基板10上涂覆光致变色材料或包含有光致变色材料的涂料以形成光致变色材料层12,如图2所示。
在本发明实施例中,使用光致变色材料或包含有光致变色材料的涂料来形成光致变色材料层12。例如,所述光致变色材料具有以下特点:在适当波长的光辐照下发生特定的化学反应(或通过物理效应)而转变为另一种物质(或另一种形态),对应的吸收光谱(颜色)也随之发生改变。例如,这种光致变色变化可以是可逆的,也可以是不可逆的;如果这种光致变色变化是可逆的,那么至少要求在彩色滤光片基板的使用环境下不可逆。
在本发明实施例中,如稍后将描述的,后续可通过多种混色方案由所述光致变色材料层12形成彩色滤光层12’,因此这里将参照所需彩色滤光层12’及其对应的混色方案对步骤S101中使用的光致变色材料进行进一步描述。除常见的RGB(红/绿/蓝)混色方案外,还存在RGBY(红/绿/蓝/黄)、RGBW(红/绿/蓝/白)等其它混色方案,但无论选用哪种混色方案,所述彩色滤光层12’一般至少包括红、绿、蓝三种色阻块。
本发明实施例中以常用的RGB(红/绿/蓝)混色方案为例进行说明,本领域技术人员可在不付出创造性劳动的前提下将本发明实施例中的技术方案应用于其它混色方案,因此这些技术方案都落入本发明的保护范围内。例如,采用RGB混色方案时,需要形成包括红(R)、绿(G)、蓝(B)三种色阻块的彩色滤光层12’,因此,对应地,本示例中要求所述光致变色材料被光照后至少呈现红、绿、蓝三种颜色。为此,例如,可使用具有如下特性的光致变色材料(见:申请号200910016892.3,说明书0007段和0008段),本身肉眼观察时为绿色,在第一组曝光参数下曝光后,该材料显示为蓝色,且蓝色将长期保持;在第二组曝光参数下曝光后,该材料显示为红色,且红色将长期保持。再例如,所述光致变色材料是申请号201310280824.4和申请号02117597.7中记载的材料。当然,除此记载之外的可实现本发明实施例的光致变色材料都是可行的,本发明实施例不限于此。
在一个示例中,所述光致变色材料是不可逆的紫外变色粉。所述不可逆的紫外变色粉一般应用在需要一次性检测的商标、包装等上面,在紫外光 (200~400nm)照射下显示特定的颜色,但变色后再回复到原来的可见光环境时,已生成的颜色不再消色,从而使商标、包装等具有一次性检测效果。例如,所述光致变色材料可为在紫外光照射下分别显示红、绿、蓝的不可逆紫外变色粉混合而成或者为具有多变色功能的不可逆紫外变色粉。类似地,再例如,所述光致变色材料可为紫外激发防伪油墨。
S102、对所述光致变色材料层12在不同曝光参数下进行分区域曝光以形成包括多种色阻块的彩色滤光层12’,其中,同种颜色的色阻块对应的所述曝光参数相同。
在本发明实施例中,对光致变色材料层12进行分区域曝光以形成彩色滤光层12’;曝光时,同一区域(同一色阻图形)对应的曝光参数相同,形成同种颜色的色阻块。例如,所述曝光参数指曝光时光的波长(或频率)或者是曝光时光的强弱或者二者的结合。再例如,所述曝光参数是曝光时间的长短。
本发明实施例中曝光参数的选择取决于光致变色材料的变色条件。例如,如果选用的光致变色材料具有对不同波长产生不同颜色的功能,则通过控制曝光时光的波长,在掩膜版的作用下即可分别制作出包括R、G、B等色阻块的彩色滤光层12’。
例如,如图3所示,当形成包括红(R)、绿(G)、蓝(B)三种色阻块的彩色滤光层12’时,步骤102包括:
S1021、通过第一掩膜板20遮挡不需要形成红色阻的区域,使用第一波长的光(波长为λ1)对光致变色材料层12进行曝光以使被照射区域形成红色阻块121,如图4所示;
1022、通过第二掩膜板21遮挡不需要形成绿色阻的区域,使用第二波长的光(波长为λ2)对光致变色材料层12进行曝光以使被照射区域形成绿色阻块122,如图5所示;
1023、通过第三掩膜板22遮挡不需要形成蓝色阻块的区域,使用第三波长的光(波长为λ3)对光致变色材料层12进行曝光以使被照射区域形成蓝色阻块123,如图6所示。
在本发明的实施例中,上述子步骤1021、1022和1023的先后顺序不作限制,仅在波长λ1、λ2和λ3的大小关系使得其中某一波长同时含有其他两种波长的成分时优先曝光最容易受到影响的色阻块,例如,当λ1>λ2> λ3时,如果λ2中既含有λ1成分又含有λ3成分,则优先执行波长λ2所对应的色阻块形成步骤以防止出现色偏的问题。
其中,波长λ1、λ2和λ3的大小与光致变色材料层12的变色条件相关,由光致变色材料层12所使用的光致变色材料本身的特性决定,本发明实施例对此不作限定。在一个示例中,使不同的色阻块对应的波长不同且波长范围尽量不重叠或仅存在很小部分的重叠从而避免相互影响。
在一个示例中,当形成光致变色材料层12时,为适合涂覆工艺,添加一些透明基底材料,例如SiO2或SiNx类能够提高光致变色材料的附着性的透明基底材料。
本发明实施例所提供的彩色滤光片基板制备方法中,光致变色材料层12在不同曝光参数下分区域曝光后直接形成彩色滤光层12’,因此只需要一次涂覆工艺即可完成彩色滤光层12’的制作,这使得制作过程简单,从而可降低生产成本并且缩短生产周期;而且,彩色滤光层12’的各色阻块在交接处不存在重叠,使得表面平整度高并且消除了各色阻块的角段差。
本发明的实施例还提供一种彩色滤光片基板,包括彩色滤光层12’,所述彩色滤光层12’包括对光致变色材料层12在不同曝光参数下进行分区域曝光而形成的多种色阻块,所述光致变色材料层12由光致变色材料或包含有光致变色材料的涂料涂覆而成,其中,同种颜色的色阻块对应的所述曝光参数相同。
在一个示例中,所述彩色滤光层12’至少包括红、绿、蓝三种色阻块。
在一个示例中,所述光致变色材料在第一波长的光照射下转变为红色,在第二波长的光照射下转变为绿色,在第三波长的光照射下转变为蓝色。
例如,所述光致变色材料为不可逆的紫外变色粉或者紫外激发防伪油墨。
对于本发明实施例所提供的彩色滤光片基板中包含的彩色滤光层12’的其他设置,可参考之前的彩色滤光片基板的制备方法中关于彩色滤光层12’的对应描述,在此不再赘述。
本发明实施例提供的彩色滤光片基板制作简单并且成本低廉;而且,彩色滤光层12’的各色阻块在交接处不存在重叠,使得表面平整度高并且消除了各色阻块的角段差。
本发明的实施例还提供一种显示装置,其包括本发明实施例所提供的彩 色滤光片基板。例如,所述显示装置为液晶面板、电子纸、OLED面板、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产品或部件。因选用了本发明实施例所提供的彩色滤光片基板,本发明实施例所提供的显示装置不仅成本低廉而且显示画面品质也获得了提升。
需要说明的是,本发明实施例以常用的RGB(红/绿/蓝)混色方案为例进行了说明,除此之外,也存在RGBY(红/绿/蓝/黄)、RGBW(红/绿/蓝/白)等其它混色方案。本领域技术人员可在不付出创造性劳动的前提下将本发明实施例中的技术方案应用于其它混色方案,并且这些应用都属于本发明保护的范围。
本说明书中的各个实施例均采用递进的方式描述,各个实施例之间相同相似的部分互相参见即可,每个实施例重点说明的都是与其他实施例的不同之处。尤其,对于设备实施例而言,由于其基本相似于方法实施例,所以描述得比较简单,相关之处参见方法实施例的部分说明即可。
以上说明对本发明而言只是说明性的,而非限制性的,本领域普通技术人员理解,在不脱离所附权利要求所限定的精神和范围的情况下,可做出许多修改、变化或等效,但都将落入本发明的保护范围内。
本申请要求于2014年1月29日提交的名称为“彩色滤光片基板及其制备方法、显示装置”的中国专利申请No.201410043227.4的优先权,该申请全文以引用方式合并于本文。

Claims (15)

  1. 一种彩色滤光片基板的制备方法,包括:
    在形成有黑矩阵(11)的基板(10)上涂覆光致变色材料或包含有光致变色材料的涂料以形成光致变色材料层(12);
    对所述光致变色材料层(12)在不同曝光参数下进行分区域曝光以形成包括多种色阻块的彩色滤光层(12’),其中,同种颜色的色阻块对应的所述曝光参数相同。
  2. 根据权利要求1所述的制备方法,其中,所述彩色滤光层(12’)至少包括红、绿、蓝三种色阻块。
  3. 根据权利要求1或2所述的制备方法,其中,所述曝光参数为波长。
  4. 根据权利要求3所述的制备方法,其中,所述对所述光致变色材料层(12)在不同曝光参数下进行分区域曝光以形成包括多种色阻块的彩色滤光层(12’)的步骤包括:
    通过第一掩膜板(20)遮挡不需要形成红色阻的区域,使用第一波长的光对所述光致变色材料层(12)进行曝光以使被照射区域形成红色阻块;
    通过第二掩膜板(21)遮挡不需要形成绿色阻的区域,使用第二波长的光对所述光致变色材料层(12)进行曝光以使被照射区域形成绿色阻块;
    通过第三掩膜板(22)遮挡不需要形成蓝色阻块的区域,使用第三波长的光对所述光致变色材料层(12)进行曝光以使被照射区域形成蓝色阻块。
  5. 根据权利要求4所述的制备方法,其中,如果所述第一波长、第二波长和第三波长中一个波长同时包含其它两个波长的成分,则首先执行所述波长对应的色阻块形成步骤。
  6. 根据权利要求4所述的制备方法,其中,所述第一波长、第二波长和第三波长的波长范围不重叠。
  7. 根据权利要求1-6中任一项所述的制备方法,其中,所述光致变色材料为不可逆的紫外变色粉。
  8. 根据权利要求1-6中任一项所述的制备方法,其中,所述光致变色材料为紫外激发防伪油墨。
  9. 一种彩色滤光片基板,包括彩色滤光层(12’),其中,
    所述彩色滤光层(12’)包括对光致变色材料层(12)在不同曝光参数 下进行分区域曝光而形成的多种色阻块,所述光致变色材料层(12)由光致变色材料或包含有光致变色材料的涂料涂覆而成,其中,同种颜色的色阻块对应的所述曝光参数相同。
  10. 根据权利要求9所述的彩色滤光片基板,其中,所述彩色滤光层至少包括红、绿、蓝三种色阻块。
  11. 根据权利要求9或10所述的彩色滤光片基板,其中,所述曝光参数为波长。
  12. 根据权利要求11所述的彩色滤光片基板,其中,
    所述光致变色材料在第一波长的光照射下转变为红色,在第二波长的光照射下转变为绿色,在第三波长的光照射下转变为蓝色。
  13. 根据权利要求9-12中任一项所述的彩色滤光片基板,其中,所述光致变色材料为不可逆的紫外变色粉。
  14. 根据权利要求9-12中任一项所述的彩色滤光片基板,其中,所述光致变色材料为紫外激发防伪油墨。
  15. 一种显示装置,包括权利要求9-14中任一项所述的彩色滤光片基板。
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