CN215006149U - Pixel structure, liquid crystal display panel and liquid crystal display device - Google Patents

Pixel structure, liquid crystal display panel and liquid crystal display device Download PDF

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Publication number
CN215006149U
CN215006149U CN202120880927.4U CN202120880927U CN215006149U CN 215006149 U CN215006149 U CN 215006149U CN 202120880927 U CN202120880927 U CN 202120880927U CN 215006149 U CN215006149 U CN 215006149U
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sub
pixel
pixels
liquid crystal
crystal display
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卢昭阳
康报虹
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HKC Co Ltd
Changsha HKC Optoelectronics Co Ltd
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HKC Co Ltd
Changsha HKC Optoelectronics Co Ltd
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Abstract

The utility model discloses a pixel structure, liquid crystal display panel and liquid crystal display device, wherein, pixel structure includes the pixel unit, each the pixel unit includes a plurality of sub-pixels, each the sub-pixel all includes main pixel district and sub-pixel district; a pair of scanning lines is arranged between the main pixel area and the sub-pixel area of each row of the sub-pixels; one of the two adjacent columns of sub-pixels is arranged by turning a preset angle relative to the other column; each row of sub-pixels takes two adjacent columns of the sub-pixels as a group of driving units and is sequentially divided into a plurality of groups, a data line is arranged between the two columns of the sub-pixels of each group, and the sub-pixels of each group are electrically connected with the same data line; and the shared rod is arranged between two adjacent groups of driving units, and the sub-pixel areas of two adjacent columns of sub-pixels are electrically connected with the same shared rod. The utility model discloses technical scheme sets up main pixel district and the subpixel district of adjacent subpixel through the dislocation, makes display panel better at the display effect of low gray scale.

Description

Pixel structure, liquid crystal display panel and liquid crystal display device
Technical Field
The utility model relates to a show technical field, in particular to pixel structure, liquid crystal display panel and liquid crystal display device.
Background
With the development of high-resolution display, not only the power consumption of the display device is gradually increased, but also the cost of the driving IC is continuously increased. In order to reduce the cost of the driver IC, the DRD (double Row driving) design is increasingly applied because the DRD design mode can not only reduce the number of data lines and thus reduce the cost of the driver IC, but also reduce the wiring space and thus reduce the frame width, but the product adopting the DRD in the market at present has a problem of poor display effect because in the DRD design, the pixel is divided into a main pixel area and a sub-pixel area, and because the main pixel area and the sub-pixel area are turned on at the same time period (at the same gray level/a certain picture level), the voltage difference of the main pixel area is generally larger and the voltage difference of the sub-pixel area is smaller, and the actual lighting is found, especially at the middle and low gray levels, the main pixel area mainly contributes to the brightness, and the sub-pixel area is in a very dark state, and even does not reach the threshold voltage of the liquid crystal deflection. Therefore, the display panel has a problem that the display effect is affected by the lack of fineness of the fine picture when the display panel is at the middle and low gray levels.
Therefore, it is an urgent technical problem to be solved in the art to provide a design capable of improving the display quality of the DRD product.
SUMMERY OF THE UTILITY MODEL
The main object of the present invention is to provide a pixel structure, which aims to improve the display effect of DRD design products.
To achieve the above object, the present invention provides a pixel structure, including:
the pixel units are arranged in an array, each pixel unit comprises a plurality of sub-pixels, and each sub-pixel comprises a main pixel area and a sub-pixel area;
a pair of scanning lines is arranged between the main pixel area and the sub-pixel area of each row of the sub-pixels;
the main pixel area and the sub-pixel area of each sub-pixel are connected with the same scanning line, one of the two adjacent columns of sub-pixels is electrically connected with one of the pair of scanning lines, and the other column of sub-pixels is electrically connected with the other of the pair of scanning lines;
one of the two adjacent columns of sub-pixels is arranged by turning a preset angle relative to the other column;
each row of sub-pixels takes two adjacent columns of the sub-pixels as a group of driving units and is sequentially divided into a plurality of groups, a data line is arranged between the two columns of the sub-pixels of each group, and the sub-pixels of each group are electrically connected with the same data line; and
and the shared rod is arranged between two adjacent groups of driving units, and the sub-pixel areas of two adjacent columns of sub-pixels are electrically connected with the same shared rod.
Optionally, one of the sub-pixels of two adjacent columns is arranged to be turned by 180 ° with respect to the other column.
Optionally, the main pixel region and the sub-pixel region of the adjacent sub-pixels in the adjacent driving units are arranged by being turned over by 180 °.
Optionally, the area of the main pixel region is smaller than that of the sub-pixel region.
Optionally, the main pixel region and the sub-pixel region each correspond to liquid crystal molecules of four domains.
Optionally, the main pixel region of the sub-pixel comprises a first thin film transistor, and the sub-pixel region of the sub-pixel comprises a second thin film transistor and a third thin film transistor;
the main pixel area of the sub-pixel is electrically connected with the scanning line through the first thin film transistor, and the sub-pixel area is electrically connected with the scanning line through the transistors of the second thin film transistor and the third thin film transistor.
Optionally, the voltage of the main pixel region is less than the voltage of the sub-pixel region, and the third thin film transistor discharges a part of the voltage of the sub-pixel region onto the corresponding sharing bar.
Optionally, each of the pixel units includes a blue sub-pixel, a green sub-pixel, and a red sub-pixel arranged in sequence.
The utility model also provides a liquid crystal display panel, including foretell pixel structure.
The utility model also provides a liquid crystal display device, include foretell liquid crystal display panel and do liquid crystal display panel provides the light source module of light.
The utility model discloses technical scheme reduces the voltage in the subpixel district of subpixel through the sharing stick to with the main pixel district and the subpixel district of subpixel overturn according to certain angle in the position, be favorable to luminous weak or even when unable the light-emitting in well low grey scale subpixel district, through the disorder degree that increases luminous position (main pixel district), thereby reach the purpose that improves the luminous degree of consistency of display panel, and then improve the fine and smooth degree of picture.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a pixel arrangement according to an embodiment of the pixel structure of the present invention;
FIG. 2 is a schematic diagram of the connection structure of the sharing bar of the sub-pixel inside the pixel in FIG. 1.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name (R)
10 Pixel structure 3 Scanning line
1 Sub-pixel 31 Upper scanning line
11 Main pixel region 32 Lower scanning line
111 A first thin film transistor 4 Sharing bar
12 Sub-pixel region 5 Drive unit
121 Second thin film transistor R Red sub-pixel
122 Third thin film transistor B Blue sub-pixel
2 Data line G Green sub-pixel
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a pixel structure 10.
Referring to fig. 1, in the embodiment of the present invention, the pixel structure 10 includes: the pixel units are arranged in an array, each pixel unit comprises a plurality of sub-pixels 1, and each sub-pixel 1 comprises a main pixel area 11 and a sub-pixel area 12;
a pair of scanning lines 3 is arranged between the main pixel area 11 and the sub-pixel area 12 of each row of the sub-pixels 1;
the main pixel area 11 and the sub-pixel area 12 of each sub-pixel 1 are connected with the same scanning line 3, one column of the sub-pixels 1 in two adjacent columns is electrically connected with one scanning line 3, and the other column is electrically connected with the other scanning line 3;
one of the two adjacent columns of the sub-pixels 1 is arranged by turning a preset angle relative to the other column;
each row of sub-pixels 1 takes two adjacent columns of the sub-pixels 1 as a group of driving units 5, the sub-pixels are sequentially divided into a plurality of groups, a data line 2 is arranged between the two columns of the sub-pixels 1 of each group, and the sub-pixels 1 of each group are electrically connected with the same data line 2; and
the sharing bar 4 is arranged between two adjacent groups of driving units 5, and the sub-pixel regions 12 of two adjacent columns of sub-pixels 1 are electrically connected with the same sharing bar 4.
Specifically, the main pixel region 11 of the sub-pixel 1 includes therein a first thin film transistor 111, a main region storage capacitor (Cst _ main), and a main region liquid crystal capacitor; the sub-pixel region 12 includes a third thin film transistor 122 and a sub-region storage capacitance (Cst _ sub) formed by a main region storage electrode connected with the pixel electrode of the main region via a via hole and an opposite common electrode (atom, common electrode on the array substrate side); the sub-region storage capacitance (Cst _ sub) is formed by a sub-region storage electrode connected to the pixel electrode of the sub-region via a via hole and an opposing common electrode (Acom, common electrode on the array substrate side). In a sub-pixel 1, the sub-area storage electrode and the main area storage electrode cross over the upper scanning line 31 to be conducted with each other; the gate of the first thin film transistor 111 is connected to the scan line 31, the source thereof is connected to the data line 2, and the drain thereof is connected to the main region storage electrode or the electrode of the main pixel region 11; the gate of the third thin film transistor 122 is connected to the upper scan line 31, the source thereof is connected to the data line 2, and the drain thereof is connected to the sub-region storage electrode or the electrode of the sub-pixel region 12. In the sub-pixel 1, the gate of the corresponding third tft 122 is connected to the upper scan line 31, the source is connected to the data line 2, and the drain is connected to the common bar 4.
When the upper scan line 31 turns on 3 tfts in the sub-pixel 1, respectively, the signal of the data line 2 enters the corresponding main pixel region 11 and sub-pixel region 12 through the first tft 111 and the third tft 122 in the sub-pixel 1, and part of the voltage in the sub-pixel region 12 is released to the shared rod 4 through the third tft 122 in the sub-pixel 1, thereby avoiding problems such as horizontal crosstalk in the sub-pixel 1.
The main pixel area 11 and the sub-pixel area 12 of one column of the sub-pixels 1 in two adjacent columns are arranged in a reversed manner at a preset angle with the main pixel area 11 and the sub-pixel area 12 of the other column of the sub-pixels 1, so that the disorder degree of the arrangement positions of the main pixel area 11 and the sub-pixel area 12 is increased. Wherein the preset angle is 180 °. That is to say, the relative position relationship of the main pixel area 11 or the sub-pixel area 12 of the sub-pixel 1 in the same row is different, so as to improve the problem of insufficient fineness of the image when displaying the middle and low gray scales.
The utility model discloses technical scheme reduces the voltage of subpixel district 12 of subpixel 1 through adopting sharing stick 4 to with the main pixel district 11 and the upset of subpixel district 12 according to certain angle in the position of subpixel 1, be favorable to in the time of the luminous weak unable light even of low or middle grey scale subpixel district 12, through the unordered degree that increases luminous position (main pixel district 11), thereby reach the purpose that improves the luminous degree of consistency of display panel, and then improve the fine and smooth degree of picture.
Alternatively, one of the two adjacent columns of the sub-pixels 1 is arranged to be turned by 180 ° with respect to the other column.
As shown in fig. 1, the arrangement positions of the main pixel area 11 and the sub-pixel area 12 of the sub-pixels 1 in the same row are the same, and the colors of the sub-pixels 1 in the same row are the same, for example, a row is a blue sub-pixel B1 or a red sub-pixel R1 or a green sub-pixel G1, and the sub-pixels 1 in two adjacent rows are turned over by 180 °, so that when the sub-pixel area 12 in one row is not displayed clearly, the main pixel area 11 in the adjacent row which is turned over with the sub-pixel area 12 in the other row can complement the brightness of the area, thereby improving the problem of insufficient fineness of the picture during the middle-low gray scale display.
Alternatively, the main pixel region 11 and the sub-pixel region 12 of the adjacent sub-pixel 1 in the adjacent driving unit 5 are arranged by being turned over by 180 °.
As shown in fig. 1, in order to make the display effect of the pixel structure 10 better, the sub-pixels 1 in each row are arranged in rows and columns by using two adjacent columns of the sub-pixels 1 as a group of driving units 5 and using such a group of driving units 5 as an array to form the whole pixel structure 1, so that the main pixel region 11, which is arranged in an inverted manner in the region of each driving unit 5, compensates the display brightness of the sub-pixel region 12 in the same column, thereby improving the display effect of the picture in the middle and low gray scale display. The DRD generally has six or more pixel structures 10.
Alternatively, the main pixel region 11 and the sub-pixel region 12 each correspond to liquid crystal molecules of four domains.
It can be understood that the shapes of the main pixel electrode and the sub-pixel electrode are both in a shape of a Chinese character 'mi', the main pixel region 11 and the sub-pixel region 12 are divided into four domains of liquid crystal molecules, and the rotation angles of the liquid crystal molecules in the 4 domains of the main pixel region 11 and the 4 domains of the sub-pixel region 12 in the same sub-pixel 1 are different, so that color shift can be improved, and the display effect can be improved.
Further, the voltage of the main pixel region 11 is less than the voltage of the sub-pixel region 12, and the third thin film transistor 122 discharges a portion of the voltage of the sub-pixel region 12 to the corresponding sharing bar 4.
When the upper scan line 31 turns on 3 tfts in the sub-pixel 1, respectively, the signal of the data line 2 enters the corresponding main pixel area 11 and sub-pixel area 12 through the first tft 111 and the third tft 122 in the sub-pixel 1, and part of the voltage in the sub-pixel area 12 is released to the shared rod 4 through the third tft 122 in the first sub-pixel 1, thereby avoiding problems such as horizontal crosstalk in the first sub-pixel 1. This is because the voltage difference exists between the main pixel area 11 and the sub-pixel area 12, so that the current can flow to the sharing bar 4 through the sub-pixel area 12, so that the voltage of the sub-pixel area 12 is reduced, so that the display brightness of the main pixel area 11 is different from that of the sub-pixel area 12, the color shift is improved, the voltage flowing to the sharing bar 4 and the voltage flowing to the sub-pixel area 12 are determined by the size of the third thin film transistor 122, and one data line 2 is used to charge two rows of eight-domain pixels at the same time, thereby saving half of the number of the data lines 2 and reducing the production cost; in addition, the sharing rods 4 are designed inside the pixels, and the sharing rods 4 are distributed on the side edges of the pixels, so that the positions of the other half of the original data lines 2 are occupied, the problem of horizontal crosstalk is solved, and the aperture ratio of the eight-domain pixels in the DRD design is greatly improved.
Furthermore, each pixel unit comprises a blue sub-pixel B, a green sub-pixel G and a red sub-pixel R which are sequentially arranged.
As shown in fig. 1, in the pixel structure 10 of the present embodiment, the pixel unit includes a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B, and in other embodiments, the pixel unit may include a white sub-pixel W in addition to the RGB three pixel structures 10, that is, the pixel unit includes four sub-pixels 1 RGBW; or a pixel structure 10 such as RGBG. In addition, no limitation is made here.
The utility model discloses still provide a liquid crystal display panel, this liquid crystal display panel includes pixel structure 10, and the concrete structure of this pixel structure 10 refers to above-mentioned embodiment, because this liquid crystal display panel has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.
The utility model discloses still provide a liquid crystal disply device, this liquid crystal disply device include foretell liquid crystal display panel and provide the light source module of light for this liquid crystal display panel, because this liquid crystal display panel has adopted the whole technical scheme of above-mentioned all embodiments, consequently have all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, no longer give unnecessary detail here.
The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims (10)

1. A pixel structure, comprising:
the pixel units are arranged in an array, each pixel unit comprises a plurality of sub-pixels, and each sub-pixel comprises a main pixel area and a sub-pixel area;
a pair of scanning lines is arranged between the main pixel area and the sub-pixel area of each row of the sub-pixels;
the main pixel area and the sub-pixel area of each sub-pixel are connected with the same scanning line, one of the two adjacent columns of sub-pixels is electrically connected with one of the pair of scanning lines, and the other column of sub-pixels is electrically connected with the other of the pair of scanning lines;
one of the two adjacent columns of sub-pixels is arranged by turning a preset angle relative to the other column;
each row of sub-pixels takes two adjacent columns of the sub-pixels as a group of driving units and is sequentially divided into a plurality of groups, a data line is arranged between the two columns of the sub-pixels of each group, and the sub-pixels of each group are electrically connected with the same data line; and
and the shared rod is arranged between two adjacent groups of driving units, and the sub-pixel areas of two adjacent columns of sub-pixels are electrically connected with the same shared rod.
2. A pixel structure as claimed in claim 1, wherein one of the two adjacent columns of sub-pixels is arranged 180 ° inverted with respect to the other column.
3. The pixel structure according to claim 2, wherein the main pixel region and the sub-pixel region of the adjacent sub-pixels in the adjacent driving units are arranged by being turned over by 180 °.
4. The pixel structure of claim 3, wherein the area of the primary pixel region is smaller than the secondary pixel region.
5. The pixel structure according to claim 1, wherein the main pixel region and the sub-pixel region each correspond to liquid crystal molecules of four domains.
6. The pixel structure according to claim 5, wherein the main pixel region of the sub-pixel comprises a first thin film transistor, and the sub-pixel region of the sub-pixel comprises a second thin film transistor, a third thin film transistor;
the main pixel area of the sub-pixel is electrically connected with the scanning line through the first thin film transistor, and the sub-pixel area is electrically connected with the scanning line through the transistors of the second thin film transistor and the third thin film transistor.
7. The pixel structure of claim 6, wherein the voltage of the main pixel region is less than the voltage of the sub-pixel region, and the third thin film transistor is capable of releasing a portion of the voltage of the sub-pixel region onto the corresponding sharing bar.
8. The pixel structure of claim 1, wherein each of the pixel units comprises a blue sub-pixel, a green sub-pixel, and a red sub-pixel arranged in sequence.
9. A liquid crystal display panel comprising the pixel structure of any one of claims 1 to 8.
10. A liquid crystal display device, comprising a liquid crystal display panel and a light source module for providing light to the liquid crystal display panel, wherein the liquid crystal display panel is the liquid crystal display panel according to claim 9.
CN202120880927.4U 2021-04-26 2021-04-26 Pixel structure, liquid crystal display panel and liquid crystal display device Active CN215006149U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115101024A (en) * 2022-07-07 2022-09-23 惠科股份有限公司 Pixel structure, array substrate and display panel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115101024A (en) * 2022-07-07 2022-09-23 惠科股份有限公司 Pixel structure, array substrate and display panel

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