Embodiments of the present invention relate to the field of manufacturing liquid crystal display panels, particularly to a color filter substrate, an array substrate and a liquid crystal panel and a liquid crystal display device using them.
A liquid crystal display panel mainly consists of a color filter substrate, an array substrate and a liquid crystal layer sandwiched therebetween. The color filter substrate comprises M rows by N columns of pixel units each containing a red (R) sub-pixel unit, a green (G) sub-pixel unit and a blue (B) sub-pixel unit. The color filter substrate can exhibit different colors by transmitting different optical bands at the three sub-pixels of different colors and exhibits desired colors by controlling transmitted light intensity of the three sub-pixels of different colors. Accordingly, M rows by N columns of pixel units are disposed on the array substrate; each of the pixel units contains three sub-pixel units and is driven by three data lines and one gate line. It is possible to control light brightness by controlling the gate lines and data lines, thereby allowing each sub-pixel unit to display different color, and realizing display of the entire picture. However, a conventional liquid crystal display contains only three sub-pixel units of three colors. Their color reproducibility, transmittance of display panel and resolution of the display for picture details are poor, which limit the reality of picture display effect.
Embodiments of the present invention provide a color filter substrate, an array substrate, a liquid crystal panel and a liquid crystal display device for enhancing display effect of the liquid crystal display panel.
In order to achieve the above-mentioned object, embodiments of the present invention adopt the following technical solutions:
In one aspect, a color filter substrate including a plurality of pixel units is provided, wherein said pixel unit comprises two diamond shaped sub-pixels and four isosceles triangle shaped sub-pixels, every two isosceles triangle shaped sub-pixels are arranged into a sub-pixel column with vertex angles opposite to each other, and two sub-pixel columns are parallel to each other; said two diamond shaped sub-pixels and said two sub-pixel columns are disposed alternatively in horizontal direction; and colors of said diamond sub-pixels and the isosceles triangle shaped sub-pixels at least contains red, blue and green.
In another aspect, a array substrate including a plurality of pixel units is provided, wherein said pixel unit comprises two diamond shaped sub-pixel units and four isosceles triangle shaped sub-pixel units which correspond to locations of the six sub-pixels in the color filter substrate according to claim 1 respectively.
In yet another aspect, a liquid crystal panel including the above-mentioned color filter substrate and the above-mentioned array substrate disposed oppositely thereto is provided.
In yet another aspect, a liquid crystal display device including the above-mentioned liquid crystal panel is provided.
The color filter substrate, the array substrate, the liquid crystal panel and the liquid crystal display device provided in embodiments of the present invention have the following advantages with respect to conventional technology:
1. The adoption of isosceles triangle and diamond shaped sub-pixels can elaborately display contours of irregular images, thereby enhancing the resolution of the display for picture details.
2. The addition of sub-pixels with colors other than red, green and blue not only broadens the color gamut of the color filter substrate and enhances the color reproducing effect of the liquid crystal display panel, but also increases transmittance of the color filter substrate and reduces the overall power consumption of the liquid crystal display panel.
In order to clearly illustrate the technical solution of the embodiments of the invention, the drawings of the embodiments will be briefly described in the following; it is obvious that the described drawings are only related to some embodiments of the invention and thus are not limitative of the invention.
In order to make objects, technical details and advantages of the embodiments of the invention apparent, the technical solutions of the embodiments will be described in a clearly and fully understandable way in connection with the drawings related to the embodiments of the invention. Apparently, the described embodiments are just a part but not all of the embodiments of the invention. Based on the described embodiments herein, those skilled in the art can obtain other embodiment(s), without any inventive work, which should be within the scope of the invention.
Unless otherwise defined, all the technical and scientific terms used herein have the same meanings as commonly understood by one of ordinary skill in the art to which the present invention belongs. The term “connection” as used in the patent application specification of the present invention and claims is not limited to a physical or mechanical connection, but may comprise electrical connections either direct or indirect. Terms such as “over”, “under”, “left” and “right” are only for describing relative position relationships that would vary accordingly when absolute positions of the described objects vary.
As shown in
In the embodiment of the present invention, the six color filter sub-pixels in each pixel unit 1 have colors containing at least red, blue and green. For example, in one example, the colors for the two diamond shaped sub-pixels are any two of red, blue and green, while the color for one of the four isosceles triangle shaped sub-pixels is the remaining one. Alternatively, the color for one of the two diamond shaped sub-pixels is red, blue or green, while the colors for two of the four isosceles triangle shaped sub-pixels are the remaining two colors. Alternatively, three of the four isosceles triangle shaped sub-pixels have red, blue and green colors respectively, while the two diamond shaped sub-pixels do not have any of the above-mentioned colors. However, it is understood that the six colors for the six sub-pixels may be different, or may be partially identical. For example, in the six sub-pixels, two sub-pixels have the same color, while this is independent on the shapes of sub-pixels.
In the color filter substrate according to the embodiment of the present invention, adoption of isosceles triangle and diamond shaped sub-pixels can display contours of irregular images more elaborately. Addition of yellow, cyan, pink and white sub-pixels broadens color gamut of the color filter substrate. In addition, the yellow sub-pixels have higher transmittance with respect to red, green and blue sub-pixels, thereby improving transmittance of the color filter substrate and reducing the overall power consumption of the liquid crystal display panel. In summary, the pixel units of the color filter substrate according to the embodiment of the present invention improve color display effect of the liquid crystal display panel as a whole and reduce the power consumption of the liquid crystal display panel.
The array substrate according to the embodiment of the present invention comprises a plurality of pixel units 2 arranged in an array of M rows×N columns, wherein each pixel unit 2 is disposed oppositely to each pixel unit on the color filter substrate, such as the pixel unit 1 in embodiment I. As shown in
In this embodiment, the sub-pixel units 21a, 21b, 21c and 21d corresponding to the isosceles triangle shaped color filter sub-pixels 12a, 12b, 12c and 12d may have a same isosceles triangle shape as those of the sub-pixels 12a, 12b, 12c and 12d, and the sub-pixel units 21e and 21f corresponding to the diamond shaped color filter sub-pixels 11e and 11f may have a same diamond shape as those of the sub-pixels 11e and 11f. It is understood that in other embodiments of the present invention, depending on shapes of pixel units on the color filter substrate, the sub-pixel units 21 of the array substrate may be of any other geometric shapes, such as rectangle and circle.
In operation, each pixel unit on the array substrate is driven by two gate lines and three data lines. As shown in
As an option, the first gate line 22 is connected with gates of three thin film transistors of three sub-pixel unit 21a, 21e, 21b on the array substrates corresponding to the two isosceles triangle shaped sub-pixels 12a, 12c arranged horizontally on the color filter substrate and one diamond shaped sub-pixel 11e sandwiched therebetween; the second gate line 23 is connected with gates of three thin film transistors of three sub-pixel unit 21c, 21d, 21f on the array substrates corresponding to the other two isosceles triangle shaped sub-pixels 12c, 12d on the color filter substrate and another diamond shaped color filter sub-pixel 11f. The first data line 24 is connected with sources of the two thin film transistors of the two sub-pixel units 21a, 21c on the array substrate corresponding to the left two isosceles triangle shaped sub-pixels 12a, 12c on the color filter substrate; the second data line 25 is connected with sources of the two thin film transistors of the two sub-pixel units 21e, 21d corresponding to the left diamond shaped sub-pixel 11e and the low right isosceles triangle shaped sub-pixel 12d on the color filter substrate; the third data line 26 is connected with sources of the two thin film transistors 212 of the two sub-pixel units 21b, 21f on the array substrate corresponding to the upper right isosceles triangle shaped sub-pixels 12b and the right diamond shaped sub-pixel 11f on the color filter substrate.
Further, as shown in
The array substrate provided in this embodiment realizes entire display of six sub-pixel units in one sub-pixel unit 1 in the color filter substrate according to embodiment I by two gate lines and three data lines. Fine display of contour of irregular pictures is realized. The color gamut of the color filter substrate is increased, and therefore the color display effect of the display is enhanced as a whole.
The display panel according to the embodiment of the present invention comprises an array substrate and a color filter substrate disposed opposite to each other. The substrates described in the above embodiments may be used for said array substrate and the color filter substrate. For example, in this embodiment, the arrangement and color setting of sub-pixels of the pixel unit 1 of the color filter substrate are the same as that of sub-pixels of the pixel unit 1 in
Taking the adjacent i−1th column of pixel unit 21, the ith column of pixel unit 21 and the i+1th column of pixel unit 21 in the ith row as an example, when the first gate line 22 on top of the pixel unit on the array substrate is conducted, as shown in
The liquid crystal display device according to the embodiment of the present invention comprises the display panel in above-mentioned embodiment. The liquid crystal display device may further comprise liquid crystal material filled between the color filter substrate and the array substrate. In some examples, the liquid crystal display device may further comprise a backlight source for providing backlight for the array substrate.
What are described above is related to the illustrative embodiments of the disclosure only and not limitative to the scope of the disclosure; the scopes of the disclosure are defined by the accompanying claims.
Number | Date | Country | Kind |
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2012 1 0245099 | Jul 2012 | CN | national |
Filing Document | Filing Date | Country | Kind |
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PCT/CN2012/085768 | 12/3/2012 | WO | 00 |
Publishing Document | Publishing Date | Country | Kind |
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WO2014/008738 | 1/16/2014 | WO | A |
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Number | Date | Country | |
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20150212367 A1 | Jul 2015 | US |