技术领域technical field
本发明属于显示技术领域，具体涉及一种彩膜基板及其制备方法、显示面板、显示装置。The invention belongs to the field of display technology, and in particular relates to a color filter substrate and a preparation method thereof, a display panel, and a display device.
背景技术Background technique
现有技术普通红绿蓝(RGB)三原色液晶显示装置中，彩膜基板如图1、图2所示，包括形成于衬底10上的黑矩阵1和黑矩阵1限定出的像素单元3，像素单元3包括三个相邻且分别透射RGB颜色光线的亚像素单元(红色亚像素31、蓝色亚像素32、绿色亚像素33)，所述亚像素单元设有对应颜色的彩膜(红色彩膜21、蓝色彩膜22、绿色彩膜23)，彩膜基板的亚像素单元与阵列基板的亚像素单元的位置一一对应，用于实现彩色显示。In the prior art common red, green and blue (RGB) three-primary-color liquid crystal display device, the color filter substrate is shown in Fig. 1 and Fig. 2, including a black matrix 1 formed on a substrate 10 and a pixel unit 3 defined by the black matrix 1, The pixel unit 3 includes three adjacent sub-pixel units (red sub-pixel 31, blue sub-pixel 32, and green sub-pixel 33) that transmit RGB color light respectively, and the sub-pixel units are provided with color filters of corresponding colors (red Color film 21 , blue color film 22 , green color film 23 ), the positions of the sub-pixel units of the color film substrate and the sub-pixel units of the array substrate correspond one-to-one to realize color display.
发明人发现现有技术中至少存在如下问题：在色彩表现性能上，紫色、黄色和青色三种颜色存在表现不佳的设计缺陷。为了满足高色域表现形式，往往需对应欠缺色彩的彩膜进行画素制备，由此造成彩膜基板制备工艺复杂，材料开发及应用成本高昂，使得产品生产成本提高50％以上。The inventors have found at least the following problems in the prior art: In terms of color performance, the three colors of purple, yellow and cyan have design defects that perform poorly. In order to meet the high color gamut expression form, it is often necessary to prepare pixels corresponding to the color film that lacks color. As a result, the preparation process of the color film substrate is complicated, the cost of material development and application is high, and the production cost of the product is increased by more than 50%.
发明内容Contents of the invention
本发明针对现有的由红蓝绿三原色混色实现的彩色显示表现不佳难以实现高色域的问题，提供一种彩膜基板及其制备方法、显示面板、显示装置。The present invention aims at the problem that the existing color display achieved by mixing the three primary colors of red, blue and green has poor performance and is difficult to achieve a high color gamut, and provides a color filter substrate and a preparation method thereof, a display panel, and a display device.
解决本发明技术问题所采用的技术方案是：The technical solution adopted to solve the technical problems of the present invention is:
一种彩膜基板，包括多个像素单元，每个像素单元均包括多个原色亚像素和至少一个混色亚像素，所述混色亚像素由多层叠置的不同颜色的彩膜构成。A color filter substrate includes a plurality of pixel units, each pixel unit includes a plurality of primary color sub-pixels and at least one color-mixing sub-pixel, and the color-mixing sub-pixel is composed of multi-layered color filters of different colors.
优选的是，所述原色亚像素和混色亚像素设有黑矩阵区域，所述黑矩阵区域由多层叠置的不同颜色的彩膜构成。Preferably, the primary color sub-pixels and color-mixing sub-pixels are provided with a black matrix area, and the black matrix area is composed of multi-layered color filters of different colors.
优选的是，所述黑矩阵区域的各层彩膜分别与像素单元的颜色相同的彩膜同步形成。Preferably, each layer of color filters in the black matrix area is formed synchronously with the color filters of the same color as the pixel unit.
优选的是，所述原色亚像素由单层单一颜色的彩膜构成。Preferably, the primary color sub-pixels are composed of a single-layer single-color color filter.
优选的是，所述混色亚像素包括紫色亚像素、黄色亚像素、青色亚像素；所述原色亚像素包括红色亚像素、蓝色亚像素、绿色亚像素。Preferably, the mixed color sub-pixels include purple sub-pixels, yellow sub-pixels, and cyan sub-pixels; the primary color sub-pixels include red sub-pixels, blue sub-pixels, and green sub-pixels.
优选的是，所述紫色亚像素由红色彩膜和蓝色彩膜叠置构成，所述青色亚像素由蓝色彩膜和绿色彩膜叠置构成，所述黄色亚像素由绿色彩膜和红色彩膜叠置构成。Preferably, the purple sub-pixel is composed of a red color film and a blue color film, the cyan sub-pixel is composed of a blue color film and a green color film, and the yellow sub-pixel is composed of a green color film and a red color film. Membrane stacking.
优选的是，所述原色亚像素与所述多个混色亚像素间隔设置。Preferably, the primary color sub-pixels are spaced apart from the plurality of color mixing sub-pixels.
优选的是，所述彩膜基板包括衬底，所述彩膜形成于所述衬底上，所述彩膜远离所述衬底的一侧设有平坦化层。Preferably, the color filter substrate includes a substrate, the color filter is formed on the substrate, and a planarization layer is provided on a side of the color filter away from the substrate.
本发明还提供一种彩膜基板的制备方法，包括形成不同颜色的彩膜的步骤，其中，部分位置处的彩膜形成原色亚像素，部分位置处的不同颜色的彩膜多层叠置形成混色亚像素。The present invention also provides a method for preparing a color filter substrate, including the step of forming color filters of different colors, wherein the color filters at some positions form primary color sub-pixels, and the color filters of different colors at some positions are stacked in multiple layers to form mixed colors sub-pixel.
优选的是，还包括在原色亚像素和混色亚像素周围形成黑矩阵区域步骤，所述黑矩阵区域由多层叠置的不同颜色的彩膜构成。Preferably, it further includes the step of forming a black matrix region around the primary color sub-pixels and the mixed color sub-pixels, the black matrix region is composed of multi-layered color filters of different colors.
优选的是，所述黑矩阵区域的彩膜采用半透掩膜版形成，以降低黑矩阵区域与原色亚像素、混色亚像素之间的段差。Preferably, the color filter in the black matrix area is formed by a semi-transparent mask, so as to reduce the level difference between the black matrix area and primary color sub-pixels and mixed color sub-pixels.
本发明还提供一种显示面板，包括阵列基板和上述的彩膜基板。The present invention also provides a display panel, including an array substrate and the above-mentioned color filter substrate.
优选的是，所述彩膜基板的亚像素单元与所述阵列基板的亚像素单元的位置一一对应所述阵列基板的每个TFT控制一个彩膜基板的亚像素单元。Preferably, the positions of the sub-pixel units of the color filter substrate and the sub-pixel units of the array substrate correspond one-to-one. Each TFT of the array substrate controls one sub-pixel unit of the color filter substrate.
本发明还提供一种显示装置，包括上述的显示面板。The present invention also provides a display device, including the above-mentioned display panel.
本发明的彩膜基板中混色亚像素由多层叠置的不同颜色的彩膜构成，混色亚像素对原色亚像素进行补充增强，实现高色域，使得显示更纯。本发明的彩膜基板的制备方法仅改变彩膜的掩膜版即可，无需进行工艺变更，成本低廉，可实现量产。本发明的彩膜基板适用于各种显示装置。The color-mixing sub-pixels in the color filter substrate of the present invention are composed of multi-layer stacked color filters of different colors, and the color-mixing sub-pixels supplement and enhance the primary color sub-pixels to achieve a high color gamut and make the display more pure. The preparation method of the color filter substrate of the present invention only needs to change the mask plate of the color filter, does not need to change the process, has low cost, and can realize mass production. The color filter substrate of the present invention is suitable for various display devices.
附图说明Description of drawings
图1、图2为现有的显示装置的结构示意图；FIG. 1 and FIG. 2 are structural schematic diagrams of existing display devices;
图3、图4为本发明的实施例1的彩膜基板的结构示意图；3 and 4 are structural schematic diagrams of the color filter substrate in Embodiment 1 of the present invention;
图5-8为本发明的实施例2的彩膜基板的结构示意图；5-8 are schematic structural views of the color filter substrate according to Embodiment 2 of the present invention;
图9为本发明的实施例3的彩膜基板的制备方法的流程示意图；9 is a schematic flowchart of a method for preparing a color filter substrate according to Embodiment 3 of the present invention;
其中，附图标记为：10、衬底；1、黑矩阵；12、黑矩阵区域；21、红色彩膜；22、蓝色彩膜；23、绿色彩膜；3、像素单元；31、红色亚像素；32、蓝色亚像素；33、绿色亚像素；34、紫色亚像素；35、青色亚像素；36、黄色亚像素；37、原色亚像素；38、混色亚像素；4、掩膜版。Wherein, reference signs are: 10, substrate; 1, black matrix; 12, black matrix area; 21, red color film; 22, blue color film; 23, green color film; 3, pixel unit; 31, red sub- Pixel; 32, blue sub-pixel; 33, green sub-pixel; 34, purple sub-pixel; 35, cyan sub-pixel; 36, yellow sub-pixel; 37, primary color sub-pixel; 38, mixed color sub-pixel; 4, mask .
具体实施方式detailed description
为使本领域技术人员更好地理解本发明的技术方案，下面结合附图和具体实施方式对本发明作进一步详细描述。In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
实施例1：Example 1:
本实施例提供一种彩膜基板，如图3所示，包括多个像素单元3，每个像素单元3均包括多个原色亚像素37和至少一个混色亚像素38，所述混色亚像素38由多层叠置的不同颜色的彩膜构成。This embodiment provides a color filter substrate. As shown in FIG. It is composed of multi-layered color films of different colors.
具体的，如图4所示，红色彩膜21、蓝色彩膜22、绿色彩膜23分别单独构成原色亚像素37；此外，蓝色彩膜22和绿色彩膜23叠置构成青色亚像素35，同样，红色彩膜21和绿色彩膜23叠置构成黄色亚像素36。Specifically, as shown in FIG. 4 , the red color film 21 , the blue color film 22 , and the green color film 23 respectively form primary color sub-pixels 37 ; in addition, the blue color film 22 and the green color film 23 overlap to form a cyan sub-pixel 35 , Similarly, the red color film 21 and the green color film 23 overlap to form a yellow sub-pixel 36 .
其中，由多层叠置的不同颜色的彩膜构成的混色亚像素38对原色亚像素37进行补充增强，实现高色域，使得显示更纯。本发明的彩膜基板的制备方法仅改变彩膜的掩膜版4即可，无需进行工艺变更，成本低廉，可实现量产。本发明的彩膜基板适用于各种显示装置。Among them, the color mixing sub-pixel 38 composed of multi-layered color filters of different colors supplements and enhances the primary color sub-pixel 37 to achieve a high color gamut and make the display more pure. The preparation method of the color filter substrate of the present invention only needs to change the mask plate 4 of the color filter, without process modification, low cost, and mass production can be realized. The color filter substrate of the present invention is suitable for various display devices.
实施例2：Example 2:
本实施例提供一种彩膜基板，所述彩膜基板包括衬底10，如图5、图6所示，包括多个像素单元3，每个像素单元3均包括多个原色亚像素37和至少一个混色亚像素38，所述混色亚像素38由多层叠置的不同颜色的彩膜构成；其中，原色亚像素和混色亚像素周围设有黑矩阵区域12，所述黑矩阵区域12由多层叠置的不同颜色的彩膜构成。This embodiment provides a color filter substrate. The color filter substrate includes a substrate 10, as shown in FIG. 5 and FIG. At least one color-mixing sub-pixel 38, the color-mixing sub-pixel 38 is composed of multi-layer stacked color filters of different colors; wherein, a black matrix area 12 is arranged around the primary color sub-pixel and the color-mixing sub-pixel, and the black matrix area 12 is composed of multiple Layers of color filters of different colors are stacked.
具体的，如图6所示，黑矩阵区域12由红色彩膜21、蓝色彩膜22、绿色彩膜23叠置构成。Specifically, as shown in FIG. 6 , the black matrix area 12 is composed of red color film 21 , blue color film 22 , and green color film 23 stacked together.
优选的是，所述黑矩阵区域12的各层彩膜分别与像素单元3的颜色相同的彩膜同步形成。也就是说，本实施例在制备彩膜的同时，使多种颜色彩膜叠加以呈黑色，实现黑矩阵的功能，相当于减少了黑矩阵的制备步骤，节省成本。Preferably, the color filters of each layer in the black matrix area 12 are formed synchronously with the color filters of the same color as the pixel unit 3 . That is to say, in this embodiment, while preparing the color filter, multiple color filters are superimposed to appear black to realize the function of the black matrix, which is equivalent to reducing the preparation steps of the black matrix and saving costs.
优选的是，所述原色亚像素37由单层单一颜色的彩膜构成。Preferably, the primary color sub-pixel 37 is composed of a single-layer single-color color filter.
优选的是，所述混色亚像素38包括紫色亚像素34、黄色亚像素36、青色亚像素35；所述原色亚像素37包括红色亚像素31、蓝色亚像素32、绿色亚像素33。Preferably, the color mixing sub-pixel 38 includes a purple sub-pixel 34 , a yellow sub-pixel 36 , and a cyan sub-pixel 35 ; the primary color sub-pixel 37 includes a red sub-pixel 31 , a blue sub-pixel 32 , and a green sub-pixel 33 .
优选的是，所述紫色亚像素34由红色彩膜21和蓝色彩膜22叠置构成，所述青色亚像素35由蓝色彩膜22和绿色彩膜23叠置构成，所述黄色亚像素36由绿色彩膜23和红色彩膜21叠置构成。Preferably, the purple sub-pixel 34 is formed by stacking the red color film 21 and the blue color film 22, the cyan sub-pixel 35 is formed by stacking the blue color film 22 and the green color film 23, and the yellow sub-pixel 36 It consists of a green color film 23 and a red color film 21 stacked together.
也就是说，具体的，原色亚像素37可以是三原色的，例如，上述提到的红色亚像素31、蓝色亚像素32、绿色亚像素33。这样，红色亚像素31、蓝色亚像素32、绿色亚像素33分别由红色彩膜21、蓝色彩膜22、绿色彩膜23构成；而紫色亚像素34由红色彩膜21和蓝色彩膜22叠置构成，所述青色亚像素35由蓝色彩膜22和绿色彩膜23叠置构成，所述黄色亚像素36由绿色彩膜23和红色彩膜21叠置构成。That is to say, specifically, the primary color sub-pixel 37 may be of three primary colors, for example, the above-mentioned red sub-pixel 31 , blue sub-pixel 32 , and green sub-pixel 33 . In this way, the red sub-pixel 31, the blue sub-pixel 32, and the green sub-pixel 33 are respectively composed of the red color film 21, the blue color film 22, and the green color film 23; and the purple sub-pixel 34 is composed of the red color film 21 and the blue color film 22. The cyan sub-pixel 35 is formed by stacking the blue color film 22 and the green color film 23 , and the yellow sub-pixel 36 is formed by stacking the green color film 23 and the red color film 21 .
在此给出三种具体的彩膜搭配的实施方案，分别如图6、图7、图8所示。也就是说，混色亚像素38的搭配方式可以有多种，具体的只需要改变形成不同颜色彩膜时的掩膜版4即可。需要说明的是，以上颜色仅仅是示例性说明，各种颜色的彩膜叠至次序或颜色搭配可以根据需要进行调整。Here are three specific implementations of color filter matching, as shown in Figure 6, Figure 7, and Figure 8 respectively. That is to say, there are many ways to match the color-mixing sub-pixels 38 , specifically, it is only necessary to change the masks 4 used to form color filters of different colors. It should be noted that the above colors are only illustrative, and the stacking sequence or color matching of the color filters of various colors can be adjusted as needed.
优选的是，所述原色亚像素37与所述多个混色亚像素38间隔设置。Preferably, the primary color sub-pixels 37 are spaced apart from the plurality of color mixing sub-pixels 38 .
也就是说，原色亚像素37与混色亚像素38间隔设置，这样可以使得混色亚像素38更好的对原色亚像素37进行补充增强，实现高色域，使得显示更纯。That is to say, the primary color sub-pixels 37 and the color-mixing sub-pixels 38 are arranged at intervals, so that the color-mixing sub-pixels 38 can better complement and enhance the primary color sub-pixels 37 to achieve a high color gamut and make the display more pure.
优选的是，所述彩膜形成于所述衬底10上，所述彩膜远离所述衬底10的一侧设有平坦化层。Preferably, the color filter is formed on the substrate 10 , and a planarization layer is provided on the side of the color filter away from the substrate 10 .
也就是说，在彩膜远离衬底10的一侧形成一层平坦化层，以降低亚像素与黑矩阵区域12的段差。That is to say, a planarization layer is formed on the side of the color filter away from the substrate 10 to reduce the level difference between the sub-pixels and the black matrix region 12 .
实施例3：Example 3:
本实施例提供一种彩膜基板的制备方法，包括形成不同颜色的彩膜的步骤，其中，部分位置处的彩膜形成原色亚像素，部分位置处的不同颜色的彩膜多层叠置形成混色亚像素。This embodiment provides a method for preparing a color filter substrate, including the step of forming color filters of different colors, wherein the color filters at some positions form primary color sub-pixels, and the color filters of different colors at some positions are stacked in multiple layers to form mixed colors sub-pixel.
以图6所示的彩膜基板为例，如图9所示，具体包括以下步骤：Taking the color filter substrate shown in Figure 6 as an example, as shown in Figure 9, it specifically includes the following steps:
(1)在衬底10上形成红色彩膜21，并采用第一张掩膜版4曝光、显影；(1) Form a red color film 21 on the substrate 10, and use the first mask plate 4 to expose and develop;
(2)在红色彩膜21上形成色绿色彩膜23，并采用第二张掩膜版4曝光、显影；(2) Form a green color film 23 on the red color film 21, and use the second mask plate 4 to expose and develop;
(3)在绿色彩膜23上形成色蓝色彩膜22，并采用第三张掩膜版4曝光、显影，得到图6所示的彩膜基板。(3) Form the blue color filter 22 on the green color filter 23 , expose and develop with the third mask plate 4 , and obtain the color filter substrate shown in FIG. 6 .
其中，从图6和图9中可以看出，黑矩阵区域12由多层叠置的不同颜色的彩膜构成，且在形成各层彩膜的同时形成黑矩阵区域12。图9的形成彩膜的步骤顺序是红色彩膜21、绿色彩膜23、蓝色彩膜22；需要说明的是，绿色彩膜23、蓝色彩膜22、红色彩膜21的顺序或者蓝色彩膜22、绿色彩膜23、红色彩膜21的顺序也是可行的。其中，蓝色彩膜22的透过率相对较低，蓝色彩膜22、绿色彩膜23、红色彩膜21的形成顺序在实际工艺中实现更为方便。Wherein, it can be seen from FIG. 6 and FIG. 9 that the black matrix region 12 is composed of multi-layered color filters of different colors, and the black matrix region 12 is formed while forming the color filters of each layer. The sequence of steps for forming the color film in FIG. 9 is red color film 21, green color film 23, and blue color film 22; it should be noted that the sequence of green color film 23, blue color film 22, red color film 21 or blue 22. The order of green color film 23 and red color film 21 is also feasible. Among them, the transmittance of the blue color film 22 is relatively low, and the formation sequence of the blue color film 22 , the green color film 23 , and the red color film 21 is more convenient to realize in the actual process.
优选的是，黑矩阵区域12采用半透掩膜版4，这样可以更好的降低亚像素与黑矩阵区域12的段差。Preferably, the black matrix area 12 uses a semi-transparent mask 4 , which can better reduce the level difference between the sub-pixels and the black matrix area 12 .
实施例4：Example 4:
本实施例提供一种显示面板，包括阵列基板和上述的彩膜基板。This embodiment provides a display panel, including an array substrate and the above-mentioned color filter substrate.
优选的是，所述彩膜基板的亚像素单元与所述阵列基板的亚像素单元的位置一一对应所述阵列基板的每个TFT控制一个彩膜基板的亚像素单元。Preferably, the positions of the sub-pixel units of the color filter substrate and the sub-pixel units of the array substrate correspond one-to-one. Each TFT of the array substrate controls one sub-pixel unit of the color filter substrate.
实施例5：Example 5:
本实施例提供了一种显示装置，其包括上述任意一种显示面板。所述显示装置可以为：液晶显示面板、电子纸、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。This embodiment provides a display device, which includes any one of the above display panels. The display device may be any product or component with a display function such as a liquid crystal display panel, electronic paper, mobile phone, tablet computer, television, monitor, notebook computer, digital photo frame, navigator, and the like.
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的普通技术人员而言，在不脱离本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本发明的保护范围。It can be understood that, the above embodiments are only exemplary embodiments adopted for illustrating the principle of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
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| CN201610852447.0ACN106200105A (en) | 2016-09-26 | 2016-09-26 | A kind of color membrane substrates and preparation method thereof, display floater, display device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610852447.0ACN106200105A (en) | 2016-09-26 | 2016-09-26 | A kind of color membrane substrates and preparation method thereof, display floater, display device |
| Publication Number | Publication Date |
|---|---|
| CN106200105Atrue CN106200105A (en) | 2016-12-07 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610852447.0APendingCN106200105A (en) | 2016-09-26 | 2016-09-26 | A kind of color membrane substrates and preparation method thereof, display floater, display device |
| Country | Link |
|---|---|
| CN (1) | CN106200105A (en) |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | Application publication date:20161207 | |
| RJ01 | Rejection of invention patent application after publication |